| | Pottstown, PA | Downingtown, PA | United States |
| Rainfall | 46.9 | 48.9 | 38.1 |
| Snowfall | 16.8 | 28.5 | 27.8 |
| Precipitation Days | 117.1 | 124.9 | 106.2 |
| Sunny | 209 | 205 | 205 |
| Avg. July High | 85.7 | 84.9 | 85.8 |
| Avg. Jan. Low | 22.8 | 20.4 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.1 | 7 |
| UV Index | 4.1 | 4 | 4.3 |
| Elevation ft. | 154 | 239 | 2443 |