SeasonMapPittsburgh vs Washington in September
Pittsburgh is the better pick in September — 89 vs 80 on SeasonMap's comfort score. Pittsburgh is warm, rainy, clean air, while Washington is hot, rainy, clean air.
Pittsburgh vs Washington — September climate, side by side
| Pittsburgh | Washington | |
|---|---|---|
| Comfort score | 89/100 (A) | 80/100 (A) |
| Feels-like high | 27°C | 30°C |
| Avg high / low | 26° / 14° | 28° / 17° |
| Rainfall | 86 mm | 108 mm |
| Rainy days | 8 | 8 |
| Humidity | 75% | 74% |
| Air quality (AQI) | 43 | 47 |
Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.
Pittsburgh vs Washington in September — FAQ
- Is September better in Pittsburgh or Washington?
- Pittsburgh is the better pick in September — 89 vs 80 on SeasonMap's comfort score. Pittsburgh is warm, rainy, clean air, while Washington is hot, rainy, clean air.
- What is the weather like in Pittsburgh vs Washington in September?
- In September, Pittsburgh averages 26°C high / 14°C low with about 86 mm of rain; Washington averages 28°C high / 17°C low with about 108 mm.