National Mapping

National Data Info
Please note, 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
January - May 1987
0"0.25"0.5"1"3"5"10"20"30"
Contiguous U.S.
PrecipPrecipitation: 11.87in
Anomaly: -0.51in
Rank: 48th Driest
Mean: 12.38in
January - May 1987 National Precipitation
Location
Value
Anomaly
Rank
130 Years
1901-2000 Mean
Contiguous U.S.11.87in-0.51in4812.38in

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