What is the weather like in Chicago vs San Antonio in December?

In December, Chicago averages 4°C high / -3°C low with about 48 mm of rain; San Antonio averages 21°C high / 7°C low with about 48 mm.

Chicago vs San Antonio in December

San Antonio is the better pick in December — 80 vs 46 on SeasonMap's comfort score. San Antonio is nice, a little rain, clean air, while Chicago is cold, a little rain, clean air.

Chicago vs San Antonio — December climate, side by side

	Chicago	San Antonio
Comfort score	46/100 (F)	80/100 (A)
Feels-like high	0°C	20°C
Avg high / low	4° / -3°	21° / 7°
Rainfall	48 mm	48 mm
Rainy days	6	5
Humidity	73%	69%
Air quality (AQI)	37	31

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

Chicago vs San Antonio in December — FAQ

Is December better in Chicago or San Antonio?: San Antonio is the better pick in December — 80 vs 46 on SeasonMap's comfort score. San Antonio is nice, a little rain, clean air, while Chicago is cold, a little rain, clean air.
What is the weather like in Chicago vs San Antonio in December?: In December, Chicago averages 4°C high / -3°C low with about 48 mm of rain; San Antonio averages 21°C high / 7°C low with about 48 mm.