What is the weather like in Pittsburgh vs San Francisco in December?

In December, Pittsburgh averages 6°C high / -2°C low with about 79 mm of rain; San Francisco averages 15°C high / 9°C low with about 121 mm.

Pittsburgh vs San Francisco in December

San Francisco is the better pick in December — 67 vs 49 on SeasonMap's comfort score. San Francisco is cool, rainy, clean air, while Pittsburgh is cold, a little rain, clean air.

Pittsburgh vs San Francisco — December climate, side by side

	Pittsburgh	San Francisco
Comfort score	49/100 (F)	67/100 (C)
Feels-like high	2°C	13°C
Avg high / low	6° / -2°	15° / 9°
Rainfall	79 mm	121 mm
Rainy days	10	9
Humidity	74%	82%
Air quality (AQI)	39	50

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

Pittsburgh vs San Francisco in December — FAQ

Is December better in Pittsburgh or San Francisco?: San Francisco is the better pick in December — 67 vs 49 on SeasonMap's comfort score. San Francisco is cool, rainy, clean air, while Pittsburgh is cold, a little rain, clean air.
What is the weather like in Pittsburgh vs San Francisco in December?: In December, Pittsburgh averages 6°C high / -2°C low with about 79 mm of rain; San Francisco averages 15°C high / 9°C low with about 121 mm.