December weather in West Chicago, IL
The average temperature in West Chicago in December is 28.4°F (21.4°F–35.4°F). Average precipitation: 1.67 inches.
December is a winter month in West Chicago, and is cooler than the annual average of 49.7°F. Daily temperatures swing about 14°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 8h 58m. For travel, December is cold.
Avg High
35.4°F
Avg Low
21.4°F
Precipitation
1.67 in
Daylight
8h 58m
December records in West Chicago
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 57.9°F (2012) | 8.1°F (2025) | 0.85 in (2018) |
| December 2 | 63.0°F (2012) | 7.2°F (2006) | 0.15 in (2015) |
| December 3 | 69.1°F (2012) | 1.0°F (2002) | 0.47 in (2011) |
| December 4 | 64.9°F (1998) | -2.9°F (2025) | 1.12 in (1999) |
| December 5 | 68.0°F (2001) | -2.0°F (2025) | 0.51 in (1999) |
| December 6 | 60.1°F (1998) | -0.8°F (2007) | 0.96 in (1998) |
| December 7 | 51.1°F (2004) | -4.0°F (2005) | 0.63 in (2004) |
| December 8 | 55.9°F (2024) | -1.8°F (2006) | 0.33 in (2009) |
| December 9 | 54.0°F (2023) | -2.7°F (2013) | 0.94 in (2008) |
| December 10 | 59.0°F (2021) | -9.8°F (2013) | 0.81 in (2021) |
| December 11 | 57.0°F (2021) | -4.9°F (2013) | 0.70 in (2020) |
| December 12 | 57.9°F (2015) | -9.8°F (2013) | 0.54 in (2001) |
| December 13 | 61.0°F (2015) | -9.0°F (2000) | 1.04 in (2015) |
| December 14 | 61.0°F (2015) | -4.9°F (2016) | 1.26 in (2022) |
| December 15 | 64.9°F (2021) | -2.7°F (2016) | 0.31 in (2012) |
| December 16 | 64.9°F (2021) | 3.2°F (2013) | 0.27 in (2023) |
| December 17 | 54.0°F (2006) | -2.0°F (2000) | 0.05 in (2002) |
| December 18 | 54.0°F (2002) | -13.9°F (2016) | 0.56 in (2002) |
| December 19 | 53.1°F (2002) | -14.8°F (2016) | 0.41 in (2008) |
| December 20 | 50.0°F (2015) | -9.0°F (2000) | 0.79 in (2012) |
| December 21 | 52.0°F (2015) | -8.0°F (2000) | 0.74 in (2015) |
| December 22 | 53.1°F (2006) | -9.9°F (2000) | 0.86 in (2006) |
| December 23 | 59.0°F (2015) | -8.9°F (2022) | 0.58 in (2015) |
| December 24 | 55.0°F (2019) | -5.1°F (2000) | 0.34 in (2009) |
| December 25 | 59.0°F (2023) | -11.9°F (2000) | 0.48 in (2023) |
| December 26 | 61.0°F (2019) | -5.8°F (2017) | 0.35 in (2015) |
| December 27 | 60.1°F (2008) | -7.8°F (2017) | 1.54 in (2008) |
| December 28 | 57.0°F (2025) | -5.8°F (2017) | 1.17 in (2015) |
| December 29 | 57.9°F (2022) | 0.1°F (2009) | 0.71 in (2019) |
| December 30 | 59.0°F (2002) | -5.8°F (2017) | 0.19 in (2005) |
| December 31 | 55.9°F (2006) | -4.9°F (2017) | 0.81 in (2018) |