What is the weather like in Baltimore vs Pittsburgh in September?

In September, Baltimore averages 28°C high / 19°C low with about 106 mm of rain; Pittsburgh averages 26°C high / 14°C low with about 86 mm.

Baltimore vs Pittsburgh in September

Pittsburgh is the better pick in September — 89 vs 79 on SeasonMap's comfort score. Pittsburgh is warm, rainy, clean air, while Baltimore is hot, rainy, clean air.

Baltimore vs Pittsburgh — September climate, side by side

	🇺🇸 Baltimore	🇺🇸 Pittsburgh
Comfort score	79/100 (B)	89/100 (A)
Feels-like high	29°C	27°C
Avg high / low	28° / 19°	26° / 14°
Rainfall	106 mm	86 mm
Rainy days	7	8
Humidity	76%	75%
Air quality (AQI)	45	43

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Baltimore vs Pittsburgh in September — FAQ

Is September better in Baltimore or Pittsburgh?: Pittsburgh is the better pick in September — 89 vs 79 on SeasonMap's comfort score. Pittsburgh is warm, rainy, clean air, while Baltimore is hot, rainy, clean air.
What is the weather like in Baltimore vs Pittsburgh in September?: In September, Baltimore averages 28°C high / 19°C low with about 106 mm of rain; Pittsburgh averages 26°C high / 14°C low with about 86 mm.