Counties in the Worst Drought in Pennsylvania
The top 25 of 67 Pennsylvania counties on GIS Map, ranked by the Drought Severity and Coverage Index (0-500), where 500 means the entire county is in exceptional drought.
| # | County | Drought Severity Index |
|---|---|---|
| 1 | Erie County | 99.9 |
| 2 | Franklin County | 67.2 |
| 3 | Berks County | 61.3 |
| 4 | Crawford County | 49.5 |
| 5 | Adams County | 43.3 |
| 6 | Warren County | 9.5 |
| 7 | Montgomery County | 9.3 |
| 8 | Chester County | 1.0 |
| 9 | York County | 1.0 |
| 10 | Lebanon County | 0.1 |
| 11 | Allegheny County | 0.0 |
| 12 | Armstrong County | 0.0 |
| 13 | Beaver County | 0.0 |
| 14 | Bedford County | 0.0 |
| 15 | Blair County | 0.0 |
| 16 | Bradford County | 0.0 |
| 17 | Bucks County | 0.0 |
| 18 | Butler County | 0.0 |
| 19 | Cambria County | 0.0 |
| 20 | Cameron County | 0.0 |
| 21 | Carbon County | 0.0 |
| 22 | Centre County | 0.0 |
| 23 | Clarion County | 0.0 |
| 24 | Clearfield County | 0.0 |
| 25 | Clinton County | 0.0 |
Source: U.S. Drought Monitor (13 October 2026). All counties with data are ranked. Estimates carry margins of error.
Citing this page: GIS Map, “Counties in the Worst Drought in Pennsylvania”, https://gismap.land/rankings/pennsylvania/worst-drought-counties. Figures from U.S. Drought Monitor (13 October 2026).
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