NOAA's National Centers for Environmental Information
Regional Mapping
Palmer Drought Severity Index
September 2017
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Climate Regions (Hover over a Climate Region)
PDSIPalmer Drought Severity Index (PDSI):
Anomaly:
Rank:
Mean:
Climate Region | Value | Anomaly | Rank 130 Years | 1901- |
|---|---|---|---|---|
| Northeast | 1.11 | 1.01 | 80 | 0.10 |
| Upper Midwest | 2.69 | 2.46 | 112 | 0.23 |
| Ohio Valley | 1.13 | 1.02 | 80 | 0.11 |
| Southeast | 1.88 | 1.95 | 102 | -0.07 |
| Northern Rockies and Plains | 0.52 | -0.30 | 57 | 0.82 |
| South | -0.32 | -0.37 | 61 | 0.05 |
| Southwest | 0.36 | -0.09 | 75 | 0.45 |
| Northwest | -1.76 | -1.73 | 31 | -0.03 |
| West | -0.69 | -0.81 | 53 | 0.12 |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Regional Mapping, published April 2025, retrieved on April 16, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/mapping
