Date Climatice Tulcea 2011-2013

8/12/2019 Date Climatice Tulcea 2011-2013

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2011Location

This report describes the historical weather record at the Tulcea Airport (Tulcea,Romania) during 2013. This station has records back to ebruar! 1"#$.

Tulcea has a humid continental climate with hot summers and no dr! season. The areawithin %0 km o& this station is co'ered b! croplands ( # ), grasslands (22 ), lakes andrivers (1% ), forests (3 ), and floodplains (2 )

Temperature

The hottest day o& 2011 was *ul! ", with a high temperature o& 3%+ . or re&erence, onthat da! the a'erage high temperature is 2"+ and the high temperature e-ceeds 32+onl! one da! in ten. The hottest month o& 2011 was *ul! with an a'erage dail! hightemperature o& 30+ .

Relati'e to the a'erage, the hottest da! was arch 1 . The high temperature that da! was22+ , compared to the a'erage o& 11+ , a di&&erence o& 11+ . /n relati'e terms thewarmest month was eptember, with an a'erage high temperature o& 2#+ , compared toan t!pical 'alue o& 2%+ .

The longest warm spell was &rom eptember 10 to eptember 30, constituting 21consecuti'e da!s with warmer than a'erage high temperatures. The month o& eptemberhad the largest &raction o& warmer than a'erage da!s with 3 da!s with higher thana'erage high temperatures.

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Hourly Temperature Bands

The &ull !ear o& hourl! temperature reports with the da!s o& the !ear on the hori5ontal andthe hours o& the da! on the 'ertical. The hourl! temperature measurement is color codedinto meaning&ul temperature bands6 &rigid is purple (below "+ ), &ree5ing is blue ( "+to 0+ ), cold is dark green (0+ to 10+ ), cool is light green (10+ to 1 + ), com&ortableis !ellow (1 + to 2%+ ), warm is light red (2%+ to 2"+ ), hot is medium red (2"+ to3 + ), sweltering is dark red (abo'e 3 + ), and missing data is pink.

Clouds

The clearest month o& 2011 was August, with $ o& da!s being more clear than cloud!.

Cloud Coverage

The &raction o& time spent in each o& the &i'e sk! co'er categories o'er the course o& 2011on a dail! basis. rom top (most blue) to bottom (most gra!), the categories are clear,mostl! clear, partl! cloud!, mostl! cloud!, and o'ercast. 7ink indicates missing data.8utside o& the 9nited tates clear skies are o&ten reported ambiguousl!, leading them to

be lumped in with the missing data. The bar at the top o& the graph is gra! i& the sk! wascloud! or mostl! cloud! &or more than hal& the da!, blue i& it is clear or mostl! clear &ormore than hal& the da!, and blue gra! otherwise.

The cloudiest month o& 2011 was *anuar!, with $1 o& da!s being more cloud! thanclear. The longest spell o& cloud! weather was &rom ebruar! 1# to arch 3, constituting1 consecuti'e da!s that were cloudier than the! were clear.

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Hourly Cloud Coverage

The &ull !ear o& hourl! cloud co'erage reports with the da!s o& the !ear on the hori5ontaland the hours o& the da! on the 'ertical. The sk! co'er is color coded6 &rom most blue tomost gra!, the categories are clear, mostl! clear, partl! cloud!, mostl! cloud!, ando'ercast. 7ink indicates missing data. 8utside o& the 9nited tates clear skies are o&tenreported ambiguousl!, leading them to be lumped in with the missing data.

Precipitation

This station pro'ides hourl! reports o& significant weather events at and around thestation, but does not report the :uantit! o& precipitation at the station itsel&. This iscommon &or weather stations located outside o& the 9nited tates, and &or a small subseto& stations in the 9nited tates that are located at lesser used and smaller airports.

Present Weather Reports

This station reports when signi&icant weather e'ents (including precipitation) are 'isuall!obser'ed at or near the station. uch e'ents do not alwa!s correspond to measured:uantities o& li:uid e:ui'alent precipitation, such as when the e'ent is near b! not at thestation, or in the case o& solid precipitation that does not melt in the collection basin.

The da! in 2011 with the most precipitation observations was *anuar! 23. There were 23hourl! weather reports that da! (out o& a ma-imum o& 2%) in which some &orm o&

precipitation was obser'ated at or near the station. The month with the most precipitationobser'ations was *anuar!, with 131 hourl! present weather reports in'ol'ing some &ormo& precipitation.

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Precipitation Reports

The dail! number o& hourl! obser'ed precipitation reports during 2011, color codedaccording to precipitation t!pe, and stacked in order o& se'erit!. rom the bottom up, thecategories are thunderstorms (orange); hea'!, moderate, and light snow (dark to light

blue); hea'!, moderate, and light rain (dark to light green); and dri55le (lightest green). ot all categories are necessaril! present in this particular graph. The &aint shaded areasindicate climate normals. The bar at the top o& the graph is green i& an! precipitation wasobser'ed that da! and white otherwise.

As determined b! the present weather reports, the longest dry spell was &rom eptember% to eptember 2", constituting 2$ consecuti'e da!s with no obser'ed precipitation. Themonth with the largest &raction o& da!s without obser'ed precipitation was August, with"0 o& da!s reporting no obser'ed precipitation at all.

The month with the largest &raction o& da!s with at least some obser'ed precipitation was*anuar!, with % o& da!s reporting some obser'ed precipitation.

Liquid Precipitation Reports

/n this section we consider onl! those weather reports that indicate li:uid precipitation.or the purposes o& this anal!sis, we include thunderstorms e'en though somethunderstorms are not accompanied b! li:uid precipitation.

The month o& 2011 with the largest number o& those reports was April, with a total o& "1reports. The da! with the largest number o& those reports was April 1%, with a total o& 23reports.




The dail! number o& hourl! obser'ed li:uid precipitation reports (includingthunderstorms) during 2011, with climate normals (&aint shaded areas). The bar at the topo& the graph is green i& an! li:uid precipitation was obser'ed that da! and whiteotherwise.

Snow

This station reports when snow is obser'ed &alling but does not report the :uantit! o&snow that has &allen or the depth o& snow on the ground.

Reports

/n this section we consider hourl! weather reports that contain an obser'ation o& &allingsnow. These reports do not necessaril! correspond to accumulation.

The first reported snow fall in 2011 was on 8ctober 21; the last was on April 2. Themonth o& 2011 with the largest number o& those reports was *anuar!, with a total o& #1reports. The da! with the largest number o& those reports was *anuar! 23, with a total o&22 reports.

Snow Reports

The dail! number o& hourl! obser'ed snow reports during 2011, with climate normals(&aint shaded areas). The bar at the top o& the graph is blue i& there was snow &allobser'ed that da! and white otherwise.

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Humidity

<umidit! is an important &actor in determining how weather conditions &eel to a persone-periencing them. <ot and humid da!s &eel e'en hotter than hot and dr! da!s becausethe high le'el o& water content in humid air discourages the e'aporation o& sweat &rom a

person=s skin.

>hen reading the graph below, keep in mind that the hottest part o& the da! tends to bethe least humid, so the dail! low (brown) traces are more rele'ant &or understandingda!time com&ort than the dail! high (blue) traces, which t!picall! occur during the night.Appl!ing that obser'ation, the least humid month o& 2011 was August with an a'eragedail! low humidit! o& 32 , and the most humid month was *anuar! with an a'erage dail!low humidit! o& 3 .

?ut it is important to keep in mind that humidit! does not tell the whole picture and thedew point is o&ten a better measure o& how com&ortable a person will &ind a gi'en set o&

weather conditions. 7lease see the ne-t section &or continued discussion o& this point.

Humidity

The dail! low (brown) and high (blue) relati'e humidit! during 2011 with the area between them shaded gra! and superimposed o'er the corresponding a'erages (thicklines), and with percentile bands (inner band &rom 2 th to # th percentile, outer band&rom 10th to "0th percentile).

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Dew Point

4ew point is the temperature below which water 'apor will condense into li:uid water. /tis there&ore also related to the rate o& e'aporation o& li:uid water. ince the e'aporationo& sweat is an important cooling mechanism &or the human bod!, the dew point is an

important measurement &or understanding how dr!, com&ortable, or humid a gi'en set o&weather conditions will &eel.

@enerall! speaking, dew points below 10+ will &eel a bit dr! to some people, butcom&ortable to people accustomed to dr! conditions; dew points &rom 10+ to 20+ are&airl! com&ortable to most people, and dew points abo'e 20+ are increasingl!uncom&ortable, becoming oppressi'e around 2 + .

To take some e-amples, and basing our categori5ation on the dail! high dew point in2011, *anuar! had 31 dr! da!s, no com&ortable da!s, and no humid da!s; April had 2dr! da!s, com&ortable da!s, and no humid da!s; *ul! had no dr! da!s, 1# com&ortable

da!s, and 1% humid da!s; and 8ctober had 22 dr! da!s, " com&ortable da!s, and nohumid da!s.

Dew Point

The dail! low (blue) and high (red) dew point during 2011 with the area between themshaded gra! and superimposed o'er the corresponding a'erages (thick lines), and with

percentile bands (inner band &rom 2 th to # th percentile, outer band &rom 10th to "0th percentile).



Wind

The highest sustained wind speed was 1$ m s, occurring on April 1 ; the highest dailymean wind speed was 12 m s (August 11);

The windiest month was ebruar!, with an a'erage wind speed o& m s. The least windymonth was *ul!, with an a'erage wind speed o& 3 m s.

Wind Speed

The dail! low and high wind speed (light gra! area) and the ma-imum dail! wind gustspeed (tin! blue dashes).

Visibility

Bisibilit! is the ma-imum distance at which a gi'en re&erence obCect or light can beclearl! discerned. /n the 9nited tates, 'isibilities that are greater than or e:ual to 10miles are t!picall! reported as 10 miles.

The da! o& 2011 with the lowest average visibility was *anuar! , with an a'erage

'isibilit! o& 1.0 km. The month with the lowest a'erage 'isibilit! was *anuar!, with ana'erage 'isibilit! o& %.$ km. >ith an a'erage 'isibilit! o& "." km, the month o& Augusthad the highest average visibility .

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isi!ility

The dail! a'erage 'isibilit!, depicted as gra! bars encroaching down &rom the top o& thegraph.

Cloud Ceiling

This station did not reliabl! report the cloud ceiling during 2011.

Historical Weather For 2012 in Tulcea,

Romaniahttp://weatherspark.com/history/323 !/2012/Tulcea"Romania

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http://weatherspark.com/history/32396/2012/Tulcea-Romania






2012 $ The daily low (blue) and high (red) temperature during 2012 with the areabetween them shaded gray and superimposed over the corresponding averages (thicklines), and with percentile bands (inner band from 25th to 5th percentile, outer band

from 10th to !0th percentile)" The bar at the top of the graph is red where both the dailyhigh and low are above average, blue where they are both below average, and white

otherwise"

4a!light sa'ing time (4 T) was obser'ed at Tulcea during 2012. There were two timechanges during 20126

• 4 T started on unda! arch 2 , 2012 at %600 am, &rom DDT (@ TE2) to DD T(@ TE3).

• 4 T ended on unda! 8ctober 2 , 2012 at 3600 am, &rom DD T (@ TE3) toDDT (@ TE2).

2012 was a leap year and thus has 3$$ da!s rather than the normal 3$ . Feap !ears occur

e'er! &ourth !ear and the e-tra da! is alwa!s ebruar! 2"th. /n 2012 ebruar! 2"th &allson a >ednesda!.

The summer and winter solstices and the spring and &all e%uino&es mark the passing o&the seasons. The! &all on nearl! the same da! each !ear, with di&&erences o& a da! or twodepending on the !ear. /n 2012 the! occurred on6

#prin$ %&uino' Tuesda!, 20 arch 2012.

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#ummer #olstice >ednesda!, 20 *une 2012.Fall %&uino' aturda!, 22 eptember 2012.

Winter #olstice rida!, 21 4ecember 2012.

Temperature

The hottest day o& 2012 was August #, with a high temperature o& 3"+ . or re&erence, onthat da! the a'erage high temperature is 31+ and the high temperature e-ceeds 3%+onl! one da! in ten. The hottest month o& 2012 was *ul! with an a'erage dail! hightemperature o& 32+ .

Relati'e to the a'erage, the hottest da! was arch 1". The high temperature that da! was2%+ , compared to the a'erage o& 12+ , a di&&erence o& 12+ . /n relati'e terms thewarmest month was 8ctober, with an a'erage high temperature o& 21+ , compared to ant!pical 'alue o& 1 + .

The longest warm spell was &rom April 1" to a! 13, constituting 2 consecuti'e da!swith warmer than a'erage high temperatures. The month o& *ul! had the largest &ractiono& warmer than a'erage da!s with % da!s with higher than a'erage high temperatures

The coldest day o& 2012 was ebruar! 1, with a low temperature o& 1 + . or re&erence,on that da! the a'erage low temperature is %+ and the low temperature drops below12+ onl! one da! in ten. The coldest month o& 2012 was ebruar! with an a'eragedail! low temperature o& #+ .

Relati'e to the a'erage, the coldest da! was ebruar! 1. The low temperature that da!was 1 + , compared to the a'erage o& %+ , a di&&erence o& 1%+ . /n relati'e terms the

coldest month was ebruar!, with an a'erage low temperature o& #+ , compared to ant!pical 'alue o& 2+ .

The longest cold spell was &rom ebruar! $ to ebruar! 21, constituting 1$ consecuti'eda!s with cooler than a'erage low temperatures. The month o& ebruar! had the largest&raction o& cooler than a'erage da!s with #" da!s with lower than a'erage lowtemperatures.

The longest free#ing spell was &rom *anuar! 2$ to ebruar! 3, constituting " consecuti'eda!s with temperatures strictl! below &ree5ing.

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Clouds

This station did not reliabl! report the cloud co'erage during 2012 but there is enoughreported data to warrant the inclusion o& the &ollowing graphs.

Cloud Coverage



The cloudiest month o& 2012 was 4ecember, with o& da!s being more cloud! thanclear. The longest spell o& cloud! weather was &rom 4ecember 1$ to 4ecember 2 ,constituting 10 consecuti'e da!s that were cloudier than the! were clear.

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Precipitation




The da! in 2012 with the most precipitation observations was *anuar! #. There were 2%hourl! weather reports that da! (out o& a ma-imum o& 2%) in which some &orm o&

precipitation was obser'ated at or near the station. The month with the most precipitationobser'ations was 4ecember, with 1 3 hourl! present weather reports in'ol'ing some&orm o& precipitation.

1%






As determined b! the present weather reports, the longest dry spell was &rom August 2"to eptember 1$, constituting 1" consecuti'e da!s with no obser'ed precipitation. Themonth with the largest &raction o& da!s without obser'ed precipitation was eptember,with 0 o& da!s reporting no obser'ed precipitation at all.

The month with the largest &raction o& da!s with at least some obser'ed precipitation was*anuar!, with $1 o& da!s reporting some obser'ed precipitation.

Hourly Weather Reports

The &ull !ear o& hourl! present weather reports with the da!s o& the !ear on the hori5ontaland the hours o& the da! on the 'ertical. The color coded categories are thunderstorms(orange); hea'!, moderate, and light snow (dark to light blue); hea'!, moderate, and lightrain (dark to light green); dri55le (lightest green); &ree5ing rain and sleet (light and darkc!an); snow grains (lightest blue); hail (red); &og (gra!); and ha5e (brownish gra!).

1





The month o& 2012 with the largest number o& those reports was 4ecember, with a totalo& 10% reports. The da! with the largest number o& those reports was *anuar! #, with atotal o& 2% reports.



Snow This station reports when snow is obser'ed &alling but does not report the :uantit! o&snow that has &allen or the depth o& snow on the ground.

Reports


The first reported snow fall in 2012 was on o'ember 12; the last was on arch ". The

month o& 2012 with the largest number o& those reports was ebruar!, with a total o& 101reports. The da! with the largest number o& those reports was 4ecember 20, with a totalo& 23 reports.

1$



Snow Reports


Humidity


person=s skin.

>hen reading the graph below, keep in mind that the hottest part o& the da! tends to bethe least humid, so the dail! low (brown) traces are more rele'ant &or understandingda!time com&ort than the dail! high (blue) traces, which t!picall! occur during the night.Appl!ing that obser'ation, the least humid month o& 2012 was August with an a'eragedail! low humidit! o& 32 , and the most humid month was 4ecember with an a'eragedail! low humidit! o& #$ .

?ut it is important to keep in mind that humidit! does not tell the whole picture and thedew point is o&ten a better measure o& how com&ortable a person will &ind a a gi'en set o&weather conditions. 7lease see the ne-t section &or continued discussion o& this point.

1#



The dail! low (brown) and high (blue) relati'e humidit! during 2012 with the area between them shaded gra! and superimposed o'er the corresponding a'erages (thicklines), and with percentile bands (inner band &rom 2 th to # th percentile, outer band&rom 10th to "0th percentile).

Dew Point

4ew point is the temperature below which water 'apor will condense into li:uid water. /tis there&ore also related to the rate o& e'aporation o& li:uid water. ince the e'aporationo& sweat is an important cooling mechanism &or the human bod!, the dew point is animportant measurement &or understanding how dr!, com&ortable, or humid a gi'en set o&weather conditions will &eel.


To take some e-amples, and basing our categori5ation on the dail! high dew point in2012, *anuar! had 31 dr! da!s, no com&ortable da!s, and no humid da!s; April had " dr!da!s, 21 com&ortable da!s, and no humid da!s; *ul! had no dr! da!s, 1% com&ortableda!s, and 1# humid da!s; and 8ctober had # dr! da!s, 21 com&ortable da!s, and 3 humidda!s.

1



Dew Point



Wind

Wind

The highest sustained wind speed was 1# m s, occurring on a! 13; the highest dailymean wind speed was 13 m s (4ecember 1"); and the highest wind gust speed was 22 m s(4ecember 3).

The windiest month was *anuar!, with an a'erage wind speed o& $ m s. The least windymonth was o'ember, with an a'erage wind speed o& 3 m s.

1"



Wind Speed


Visibility

Bisibilit! is the ma-imum distance at which a gi'en re&erence obCect or light can beclearl! discerned. /n the 9nited tates, 'isibilities that are greater than or e:ual to 10

miles are t!picall! reported as 10 miles.The da! o& 2012 with the lowest average visibility was 4ecember 2 , with an a'erage'isibilit! o& 1.$ km. The month with the lowest a'erage 'isibilit! was o'ember, with ana'erage 'isibilit! o& $.2 km. >ith an a'erage 'isibilit! o& "." km, the month o& Augusthad the highest average visibility .

isi!ility

20




Cloud Ceiling

The cloud ceiling is the altitude o& the lowest la!er o& clouds that are at categori5ed asbroken (mostl! cloud!) or overcast (cloud!). /& no such cloud la!er e-ists then the ceilingis unlimited and no 'alue is reported.

The da! o& 2012 with the lowest average cloud ceiling was *ul! 22, with an a'eragecloud ceiling o& 31 m. The month with the lowest a'erage cloud ceiling was 8ctober,with an a'erage cloud ceiling o& 113% m. The month o& *ul! has the highest averagecloud ceiling , with an a'erage cloud ceiling o& 3%% m.

Cloud Ceiling

The dail! a'erage cloud ceiling, depicted as gra! bars encroaching down &rom the top o&the graph. issing data or da!s with insu&&icient clouds to de&ine a cloud ceiling areshown as white columns.

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(%)R 2013 T*+ %) airport

Temperature

The hottest day o& 2013 was *ul! 2", with a high temperature o& 3%+ . or re&erence, on

that da! the a'erage high temperature is 31+ and the high temperature e-ceeds 3%+onl! one da! in ten. The hottest month o& 2013 was August with an a'erage dail! hightemperature o& 30+ .

Relati'e to the a'erage, the hottest da! was ebruar! 3. The high temperature that da!was 1 + , compared to the a'erage o& 3+ , a di&&erence o& 12+ . /n relati'e terms thewarmest month was ebruar!, with an a'erage high temperature o& #+ , compared to ant!pical 'alue o& %+ .

The longest warm spell was &rom 8ctober 20 to o'ember 13, constituting 2consecuti'e da!s with warmer than a'erage high temperatures. The month o& ebruar!

had the largest &raction o& warmer than a'erage da!s with #" da!s with higher thana'erage high temperatures.

Temperature

The dail! low (blue) and high (red) temperature during 2013 with the area between themshaded gra! and superimposed o'er the corresponding a'erages (thick lines), and with

percentile bands (inner band &rom 2 th to # th percentile, outer band &rom 10th to "0th percentile). The bar at the top o& the graph is red where both the dail! high and low areabo'e a'erage, blue where the! are both below a'erage, and white otherwise.

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The coldest day o& 2013 was *anuar! 10, with a low temperature o& 1$+ . or re&erence,on that da! the a'erage low temperature is 3+ and the low temperature drops below+ onl! one da! in ten. The coldest month o& 2013 was *anuar! with an a'erage dail!

low temperature o& 3+ .

Relati'e to the a'erage, the coldest da! was *anuar! 10. The low temperature that da!was 1$+ , compared to the a'erage o& 3+ , a di&&erence o& 13+ . /n relati'e terms thecoldest month was *ul!, with an a'erage low temperature o& 1 + , compared to an t!pical'alue o& 1"+ .

The longest cold spell was &rom eptember 1% to 8ctober 10, constituting 2# consecuti'eda!s with cooler than a'erage low temperatures. The month o& eptember had the largest&raction o& cooler than a'erage da!s with # da!s with lower than a'erage lowtemperatures.



Clouds

The clearest month o& 2013 was a!, with $ o& da!s being more clear than cloud!.

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Cloud Coverage



The cloudiest month o& 2013 was ebruar!, with #1 o& da!s being more cloud! thanclear. The longest spell o& cloud! weather was &rom ebruar! 13 to ebruar! 21,constituting " consecuti'e da!s that were cloudier than the! were clear.



Precipitation

This station pro'ides hourl! reports o& significant weather events at and around thestation, but does not report the :uantit! o& precipitation at the station itsel&. This is

2%



common &or weather stations located outside o& the 9nited tates, and &or a small subseto& stations in the 9nited tates that are located at lesser used and smaller airports.



The da! in 2013 with the most precipitation observations was 8ctober 1. There were 2%hourl! weather reports that da! (out o& a ma-imum o& 2%) in which some &orm o&

precipitation was obser'ated at or near the station. The month with the most precipitationobser'ations was *anuar!, with 1%" hourl! present weather reports in'ol'ing some &ormo& precipitation.




As determined b! the present weather reports, the longest dry spell was &rom April 1# toa! , constituting 1" consecuti'e da!s with no obser'ed precipitation. The month withthe largest &raction o& da!s without obser'ed precipitation was 4ecember, with 1 o&da!s reporting no obser'ed precipitation at all.

The month with the largest &raction o& da!s with at least some obser'ed precipitation was*anuar!, with o& da!s reporting some obser'ed precipitation.

2







The month o& 2013 with the largest number o& those reports was 8ctober, with a total o&"$ reports. The da! with the largest number o& those reports was 8ctober 1, with a totalo& 2% reports.



2$



Snow

This station reports when snow is obser'ed &alling but does not report the :uantit! o&snow that has &allen or the depth o& snow on the ground.

Reports


The first reported snow fall in 2013 was on 8ctober 2$; the last was on arch 2 . Themonth o& 2013 with the largest number o& those reports was *anuar!, with a total o& 1reports. The da! with the largest number o& those reports was *anuar! , with a total o& 22reports.

Snow Reports


Humidity


person=s skin.

>hen reading the graph below, keep in mind that the hottest part o& the da! tends to bethe least humid, so the dail! low (brown) traces are more rele'ant &or understandingda!time com&ort than the dail! high (blue) traces, which t!picall! occur during the night.Appl!ing that obser'ation, the least humid month o& 2013 was August with an a'eragedail! low humidit! o& 3 , and the most humid month was *anuar! with an a'erage dail!low humidit! o& # .

2#



da!s, and % humid da!s; and 8ctober had $ dr! da!s, 2 com&ortable da!s, and no humidda!s.

Dew Point



Wind

The highest sustained wind speed was 1 m s, occurring on arch 23; the highest dailymean wind speed was 1% m s ( arch 23); and the highest wind gust speed was 2% m s( arch 23).

The windiest month was arch, with an a'erage wind speed o& m s. The least windymonth was 4ecember, with an a'erage wind speed o& % m s.

2"



Wind Speed


Visibility


miles are t!picall! reported as 10 miles.The da! o& 2013 with the lowest average visibility was *anuar! 23, with an a'erage'isibilit! o& 1." km. The month with the lowest a'erage 'isibilit! was 4ecember, with ana'erage 'isibilit! o& $.2 km. >ith an a'erage 'isibilit! o& "." km, the month o& *ul! hadthe highest average visibility .

isi!ility

30




Cloud Ceiling


The da! o& 2013 with the lowest average cloud ceiling was *une ", with an a'erage cloudceiling o& 31 m. The month with the lowest a'erage cloud ceiling was ebruar!, with ana'erage cloud ceiling o& 12%2 m. The month o& *ul! has the highest average cloudceiling , with an a'erage cloud ceiling o& 2 "1 m.

Cloud Ceiling

The dail! a'erage cloud ceiling, depicted as gra! bars encroaching down &rom the top o&the graph. issing data or da!s with insu&&icient clouds to de&ine a cloud ceiling areshown as white columns.http6 weatherspark.com histor! 323"$ 2013 Tulcea Romania

Temperature

The hottest day o& the last 12 months was *ul! 2", with a high temperature o& 3%+ . orre&erence, on that da! the a'erage high temperature is 31+ and the high temperaturee-ceeds 3%+ onl! one da! in ten. The hottest month o& the last 12 months was Augustwith an a'erage dail! high temperature o& 30+ .

Relati'e to the a'erage, the hottest da! was 8ctober 2". The high temperature that da!was 2$+ , compared to the a'erage o& 1 + , a di&&erence o& 11+ . /n relati'e terms thewarmest month was ebruar!, with an a'erage high temperature o& #+ , compared to ant!pical 'alue o& %+ .

31





The longest warm spell was &rom 8ctober 20 to o'ember 13, constituting 2consecuti'e da!s with warmer than a'erage high temperatures. The month o& a! hadthe largest &raction o& warmer than a'erage da!s with #1 da!s with higher than a'eragehigh temperatures.

Temperature

The dail! low (blue) and high (red) temperature during the last 12 months with the area between them shaded gra! and superimposed o'er the corresponding a'erages (thicklines), and with percentile bands (inner band &rom 2 th to # th percentile, outer band&rom 10th to "0th percentile). The bar at the top o& the graph is red where both the dail!high and low are abo'e a'erage, blue where the! are both below a'erage, and whiteotherwise.

The coldest day o& the last 12 months was *anuar! 31, with a low temperature o& 1$+ .or re&erence, on that da! the a'erage low temperature is 3+ and the low temperaturedrops below 11+ onl! one da! in ten. The coldest month o& the last 12 months was4ecember with an a'erage dail! low temperature o& 2+ .

Relati'e to the a'erage, the coldest da! was *anuar! 31. The low temperature that da!was 1$+ , compared to the a'erage o& 3+ , a di&&erence o& 13+ . /n relati'e terms thecoldest month was *ul!, with an a'erage low temperature o& 1 + , compared to an t!pical'alue o& 1"+ .

The longest cold spell was &rom eptember 1% to 8ctober 10, constituting 2# consecuti'eda!s with cooler than a'erage low temperatures. The month o& eptember had the largest

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&raction o& cooler than a'erage da!s with # da!s with lower than a'erage lowtemperatures.

The longest free#ing spell was &rom *anuar! 2$ to ebruar! $, constituting 12 consecuti'eda!s with temperatures strictl! below &ree5ing.



Clouds

The clearest month o& the last 12 months was a!, with $ o& da!s being more clearthan cloud!.

Cloud Coverage

The &raction o& time spent in each o& the &i'e sk! co'er categories o'er the course o& thelast 12 months on a dail! basis. rom top (most blue) to bottom (most gra!), thecategories are clear, mostl! clear, partl! cloud!, mostl! cloud!, and o'ercast. 7inkindicates missing data. 8utside o& the 9nited tates clear skies are o&ten reportedambiguousl!, leading them to be lumped in with the missing data. The bar at the top o&

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the graph is gra! i& the sk! was cloud! or mostl! cloud! &or more than hal& the da!, bluei& it is clear or mostl! clear &or more than hal& the da!, and blue gra! otherwise.

The cloudiest month o& the last 12 months was *anuar!, with ## o& da!s being morecloud! than clear. The longest spell o& cloud! weather was &rom *anuar! 1 to ebruar!

, constituting 22 consecuti'e da!s that were cloudier than the! were clear.



Precipitation




The da! in the last 12 months with the most precipitation observations was 8ctober 1.There were 2% hourl! weather reports that da! (out o& a ma-imum o& 2%) in which some&orm o& precipitation was obser'ated at or near the station. The month with the most

precipitation obser'ations was *anuar!, with 1"" hourl! present weather reportsin'ol'ing some &orm o& precipitation.

3%




The dail! number o& hourl! obser'ed precipitation reports during the last 12 months,color coded according to precipitation t!pe, and stacked in order o& se'erit!. rom the

bottom up, the categories are thunderstorms (orange); hea'!, moderate, and light snow(dark to light blue); hea'!, moderate, and light rain (dark to light green); and dri55le(lightest green). ot all categories are necessaril! present in this particular graph. The&aint shaded areas indicate climate normals. The bar at the top o& the graph is green i& an!

precipitation was obser'ed that da! and white otherwise.

As determined b! the present weather reports, the longest dry spell was &rom April 1# toa! , constituting 1" consecuti'e da!s with no obser'ed precipitation. The month withthe largest &raction o& da!s without obser'ed precipitation was 4ecember, with 1 o&da!s reporting no obser'ed precipitation at all.

The month with the largest &raction o& da!s with at least some obser'ed precipitation was*anuar!, with $1 o& da!s reporting some obser'ed precipitation.



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The month o& the last 12 months with the largest number o& those reports was 8ctober,with a total o& "$ reports. The da! with the largest number o& those reports was 8ctober1, with a total o& 2% reports.


The dail! number o& hourl! obser'ed li:uid precipitation reports (includingthunderstorms) during the last 12 months, with climate normals (&aint shaded areas). The

bar at the top o& the graph is green i& an! li:uid precipitation was obser'ed that da! andwhite otherwise.

Snow This station reports when snow is obser'ed &alling but does not report the :uantit! o&snow that has &allen or the depth o& snow on the ground.

Reports


The first reported snow fall in the last 12 months was on arch 11; the last was on

ebruar! 2 . The month o& the last 12 months with the largest number o& those reportswas *anuar!, with a total o& 1%" reports. The da! with the largest number o& those reportswas *anuar! 2$, with a total o& 2% reports.

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Humidity

The dail! low (brown) and high (blue) relati'e humidit! during the last 12 months withthe area between them shaded gra! and superimposed o'er the corresponding a'erages(thick lines), and with percentile bands (inner band &rom 2 th to # th percentile, outer

band &rom 10th to "0th percentile).

Dew Point

4ew point is the temperature below which water 'apor will condense into li:uid water. /tis there&ore also related to the rate o& e'aporation o& li:uid water. ince the e'aporationo& sweat is an important cooling mechanism &or the human bod!, the dew point is animportant measurement &or understanding how dr!, com&ortable, or humid a gi'en set o&weather conditions will &eel.


To take some e-amples, and basing our categori5ation on the dail! high dew point in thelast 12 months, arch had 2# dr! da!s, % com&ortable da!s, and no humid da!s; *une hadno dr! da!s, 20 com&ortable da!s, and 10 humid da!s; eptember had % dr! da!s, 2%com&ortable da!s, and 2 humid da!s; and 4ecember had 31 dr! da!s, no com&ortableda!s, and no humid da!s.

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Dew Point

The dail! low (blue) and high (red) dew point during the last 12 months with the area between them shaded gra! and superimposed o'er the corresponding a'erages (thicklines), and with percentile bands (inner band &rom 2 th to # th percentile, outer band&rom 10th to "0th percentile).

Wind

The highest sustained wind speed was 1 m s, occurring on arch 23; the highest dailymean wind speed was 1% m s ( arch 23); and the highest wind gust speed was 2% m s( arch 23).

The windiest month was arch, with an a'erage wind speed o& m s. The least windymonth was ebruar!, with an a'erage wind speed o& % m s.

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Wind Speed


Visibility


miles are t!picall! reported as 10 miles.The da! o& the last 12 months with the lowest average visibility was *anuar! , with ana'erage 'isibilit! o& 0.3 km. The month with the lowest a'erage 'isibilit! was *anuar!,with an a'erage 'isibilit! o& .2 km. >ith an a'erage 'isibilit! o& "." km, the month o&*ul! had the highest average visibility .

isi!ility

%0




Cloud Ceiling


The da! o& the last 12 months with the lowest average cloud ceiling was *une ", with ana'erage cloud ceiling o& 31 m. The month with the lowest a'erage cloud ceiling was*anuar!, with an a'erage cloud ceiling o& "32 m. The month o& *ul! has the highestaverage cloud ceiling , with an a'erage cloud ceiling o& 2 "1 m.

Cloud Ceiling

The dail! a'erage cloud ceiling, depicted as gra! bars encroaching down &rom the top o&the graph. issing data or da!s with insu&&icient clouds to de&ine a cloud ceiling areshown as white columns.

Date Climatice Tulcea 2011-2013

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