Post on 10-Oct-2020
Instrumental PDSIJun - Aug 1911
Instrumental PDSIJun - Aug 1934
Instrumental PDSIJun - Aug 1984
Reconstructed PDSIJun - Aug 1911
Reconstructed PDSIJun - Aug 1934
Reconstructed PDSIJun - Aug 1984
from the North American Drought Atlas http://drought.memphis.edu/NADA/