Weather · Chicago, United States
Chicago Weather in December
December in Chicago averages 5°C by day and -2°C at night, with about 68mm of rain. That makes it not the easiest month, weather-wise.
Avg high
5°C
41°F
Avg low
-2°C
28°F
Rainfall
68mm
#10 wettest of 12
What to pack
Warm layers and a proper coat. Rain is unlikely to interrupt your plans.
Timing a trip around the weather? A Local Friend in Chicago builds it around the season for you.