Regional Mapping

Regional Data Info
Please note, Degree Days are not available for Great Plains, Souther Plains and Gulf Coast, Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales. Data are available for bulk download.
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Precipitation
March - May 1978
0"0.25"0.5"1"3"5"10"20"30"
Climate Regions (Hover over a Climate Region)
PrecipPrecipitation:
Anomaly:
Rank:
Mean:
March - May 1978 Climate Regions Regional Precipitation
Climate Region
Value
Anomaly
Rank
130 Years
1901-2000 Mean
Northeast9.60in-0.97in4610.57in
Upper Midwest7.25in-0.38in497.63in
Ohio Valley12.02in0.03in6211.99in
Southeast13.40in1.22in9312.18in
Northern Rockies and Plains7.08in1.56in1175.52in
South8.56in-1.40in359.96in
Southwest4.43in1.10in1173.33in
Northwest8.39in0.63in817.76in
West7.81in3.22in1244.59in

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