December weather in Chicago, IL
The average temperature in Chicago in December is 30.9°F (25.2°F–36.6°F). Average precipitation: inches.
December is a winter month in Chicago, and is cooler than the annual average of 50.8°F. Daily temperatures swing about 11.4°F between overnight low and afternoon high. Daylight averages about 8h 58m. For travel, December is cold.
Avg High
36.6°F
Avg Low
25.2°F
Precipitation
in
Daylight
8h 58m
December records in Chicago
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 60.1°F (2012) | 15.1°F (2024) | — |
| December 2 | 61.0°F (2012) | 16.0°F (2005) | — |
| December 3 | 71.1°F (2012) | 14.0°F (2006) | — |
| December 4 | 64.0°F (2017) | 12.0°F (2006) | — |
| December 5 | 46.9°F (2017) | 10.0°F (2005) | — |
| December 6 | 50.0°F (2015) | 8.1°F (2005) | — |
| December 7 | 52.0°F (2023) | -0.9°F (2005) | — |
| December 8 | 55.9°F (2024) | 9.0°F (2006) | — |
| December 9 | 55.9°F (2023) | 5.0°F (2013) | — |
| December 10 | 60.1°F (2021) | 3.0°F (2013) | — |
| December 11 | 59.0°F (2021) | 3.9°F (2013) | — |
| December 12 | 55.9°F (2015) | -0.9°F (2013) | — |
| December 13 | 62.1°F (2015) | 5.0°F (2025) | — |
| December 14 | 61.0°F (2015) | 1.0°F (2025) | — |
| December 15 | 63.0°F (2021) | 1.9°F (2016) | — |
| December 16 | 64.0°F (2021) | 10.0°F (2009) | — |
| December 17 | 55.9°F (2006) | 15.1°F (2005) | — |
| December 18 | 52.0°F (2025) | -2.0°F (2016) | — |
| December 19 | 53.1°F (2011) | -4.0°F (2016) | — |
| December 20 | 50.0°F (2012) | 9.0°F (2005) | — |
| December 21 | 54.0°F (2015) | -2.9°F (2008) | — |
| December 22 | 53.1°F (2006) | -4.0°F (2022) | — |
| December 23 | 59.0°F (2015) | -8.0°F (2022) | — |
| December 24 | 55.9°F (2021) | -0.9°F (2022) | — |
| December 25 | 59.0°F (2019) | 3.9°F (2022) | — |
| December 26 | 62.1°F (2019) | 0.0°F (2017) | — |
| December 27 | 63.0°F (2008) | 0.0°F (2017) | — |
| December 28 | 57.0°F (2025) | 5.0°F (2017) | — |
| December 29 | 57.9°F (2019) | 10.9°F (2017) | — |
| December 30 | 57.0°F (2022) | 1.9°F (2017) | — |
| December 31 | 57.0°F (2006) | 1.9°F (2017) | — |