Chicago Weather in December
1.9°C high · -5.8°C low · 65 mm rain · 2h sun
Dec is a cool month in Chicago — not peak season, but a good time to avoid crowds.
December at a glance
| Metric | Value |
|---|---|
| Average high | 1.9°C |
| Average low | -5.8°C |
| Rainfall | 65 mm |
| Sunshine | 2 hours/day |
| Daylight | 9 hours |
What to pack in December
Pack a warm coat and layers for Chicago in December.
Chicago weather by month
JanFebMarAprMayJunJulAugSepOctNovDec
Frequently asked questions
What is the weather in Chicago in December?
Highs of 1.9°C and lows of -5.8°C, with about 65 mm of rain and 2 hours of sunshine per day.
Is December a good time to visit Chicago?
Dec is a cool month in Chicago — not peak season, but a good time to avoid crowds.
What to do in Chicago · Best time to visit Chicago
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.