Chicago Weather in December
United States · 30-year monthly averages
🤔 Fair time to visit
December in Chicago is cold, with average daytime highs around 3°C (38°F) and nighttime lows near -4°C (25°F). Expect roughly 46mm of precipitation spread over about 7 rainy days, with little rainfall.
Avg high
3°C
38°F
Avg low
-4°C
25°F
Rainfall
46mm
dry
Rainy days
7
days with ≥1mm
🎒 What to pack
- warm coat
- sweaters and layers
- scarf
December vs the rest of the year
FAQ
- How hot is Chicago in December?
- December in Chicago is cold, with average daytime highs around 3°C (38°F) and nighttime lows near -4°C (25°F). Expect roughly 46mm of precipitation spread over about 7 rainy days, with little rainfall.
- Does it rain a lot in Chicago in December?
- Chicago sees around 46mm of precipitation in December on average — dry by global standards.
- Is December a good time to visit Chicago?
- December is a workable month to visit Chicago, but expect some weather trade-offs.