December weather in Bull Valley, IL
The average temperature in Bull Valley in December is 28.0°F (20.4°F–35.5°F). Average precipitation: 2.10 inches. Average snowfall is 8.7 inches.
December is a winter month in Bull Valley, and is cooler than the annual average of 49.2°F. Daily temperatures swing about 15.1°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 8h 55m. For travel, December is cold.
Avg High
35.5°F
Avg Low
20.4°F
Precipitation
2.10 in
Snow
8.7 in
December records in Bull Valley
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 51.1°F (2012) | 10.0°F (2025) | 0.56 in (2006) |
| December 2 | 57.0°F (2012) | 10.0°F (2024) | 1.00 in (2007) |
| December 3 | 62.1°F (2012) | 15.1°F (2024) | 0.96 in (1991) |
| December 4 | 66.0°F (2012) | 1.0°F (2025) | 0.54 in (2011) |
| December 5 | 53.1°F (2012) | 1.9°F (2025) | 1.25 in (1999) |
| December 6 | 55.9°F (2015) | 8.1°F (2024) | 0.31 in (2021) |
| December 7 | 46.0°F (2015) | 6.1°F (2013) | 1.25 in (1998) |
| December 8 | 48.0°F (2023) | 3.9°F (2025) | 0.33 in (2004) |
| December 9 | 55.0°F (2023) | 12.9°F (2025) | 1.06 in (2009) |
| December 10 | 51.1°F (2024) | -6.0°F (2013) | 1.44 in (2003) |
| December 11 | 55.0°F (2015) | 0.0°F (2013) | 2.17 in (2021) |
| December 12 | 51.1°F (2015) | -5.1°F (2013) | 1.05 in (2020) |
| December 13 | 57.9°F (2015) | 0.0°F (2013) | 0.49 in (2001) |
| December 14 | 60.1°F (2015) | -7.1°F (2025) | 1.40 in (2015) |
| December 15 | 57.0°F (2015) | -7.1°F (2025) | 0.33 in (2011) |
| December 16 | 64.0°F (2021) | -2.9°F (2016) | 0.66 in (1992) |
| December 17 | 52.0°F (2015) | 6.1°F (2013) | 0.28 in (2008) |
| December 18 | 43.0°F (2012) | 1.9°F (2016) | 0.27 in (1993) |
| December 19 | 46.0°F (2025) | -9.9°F (2016) | 1.03 in (2008) |
| December 20 | 50.0°F (2018) | -8.0°F (2016) | 0.81 in (2012) |
| December 21 | 48.0°F (2015) | 5.0°F (2022) | 0.60 in (2012) |
| December 22 | 57.0°F (2015) | 5.0°F (2024) | 0.58 in (2006) |
| December 23 | 50.0°F (2019) | 14.0°F (2021) | 0.59 in (2023) |
| December 24 | 57.0°F (2015) | -2.9°F (2013) | 0.82 in (2015) |
| December 25 | 54.0°F (2023) | -0.9°F (2013) | 0.98 in (2009) |
| December 26 | 59.0°F (2023) | -4.0°F (2017) | 0.42 in (2023) |
| December 27 | 59.0°F (2019) | -6.0°F (2017) | 0.51 in (2021) |
| December 28 | 50.0°F (2018) | -6.0°F (2017) | 0.79 in (2008) |
| December 29 | 54.0°F (2025) | 5.0°F (2017) | 2.05 in (2015) |
| December 30 | 55.9°F (2019) | -2.9°F (2013) | 1.01 in (2020) |
| December 31 | 41.0°F (2011) | -2.9°F (2017) | 0.45 in (2011) |