December weather in Brillion, WI
The average temperature in Brillion in December is 24.3°F (17.3°F–31.2°F). Average precipitation: 1.55 inches. Average snowfall is 10.5 inches.
December is a winter month in Brillion, and is cooler than the annual average of 45.2°F. Daily temperatures swing about 13.9°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 8h 42m. For travel, December is cold.
Avg High
31.2°F
Avg Low
17.3°F
Precipitation
1.55 in
Snow
10.5 in
December records in Brillion
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 54.0°F (1998) | 3.9°F (2007) | 0.80 in (1982) |
| December 2 | 57.9°F (1998) | 1.9°F (2014) | 1.03 in (2007) |
| December 3 | 60.1°F (1998) | 3.9°F (2002) | 0.39 in (1997) |
| December 4 | 64.0°F (2012) | 0.0°F (2025) | 0.80 in (2001) |
| December 5 | 64.9°F (2001) | 1.0°F (2000) | 0.70 in (1973) |
| December 6 | 48.0°F (1998) | -4.0°F (2007) | 0.62 in (1953) |
| December 7 | 43.0°F (2012) | -6.0°F (2007) | 0.45 in (1947) |
| December 8 | 48.0°F (1999) | -2.9°F (2000) | 0.72 in (1926) |
| December 9 | 53.1°F (2023) | 1.0°F (2007) | 0.75 in (2009) |
| December 10 | 48.9°F (2004) | -6.0°F (2013) | 0.43 in (2004) |
| December 11 | 54.0°F (2015) | 1.0°F (2009) | 0.86 in (1983) |
| December 12 | 44.1°F (1998) | -6.0°F (2000) | 0.43 in (1965) |
| December 13 | 46.9°F (2006) | -5.1°F (2025) | 0.94 in (1995) |
| December 14 | 54.0°F (2015) | -6.0°F (2025) | 1.75 in (2015) |
| December 15 | 53.1°F (2015) | -11.0°F (2010) | 1.12 in (1992) |
| December 16 | 64.0°F (2021) | -11.9°F (2010) | 0.52 in (1940) |
| December 17 | 46.9°F (2015) | -9.0°F (2013) | 0.54 in (1927) |
| December 18 | 48.0°F (2002) | -7.1°F (2008) | 0.32 in (2000) |
| December 19 | 46.9°F (2002) | -11.0°F (2016) | 0.70 in (1987) |
| December 20 | 44.1°F (2018) | -7.1°F (2000) | 0.52 in (1951) |
| December 21 | 44.1°F (2015) | -7.1°F (1999) | 0.50 in (2012) |
| December 22 | 43.0°F (2001) | -11.0°F (2000) | 0.52 in (2014) |
| December 23 | 46.0°F (2019) | -9.9°F (2008) | 1.41 in (2006) |
| December 24 | 53.1°F (2015) | -20.0°F (2000) | 0.70 in (2016) |
| December 25 | 50.0°F (2023) | -17.0°F (2000) | 0.75 in (2009) |
| December 26 | 50.0°F (2023) | -9.0°F (2017) | 0.44 in (1988) |
| December 27 | 48.0°F (2019) | -9.9°F (2017) | 0.41 in (1959) |
| December 28 | 46.9°F (2008) | -9.0°F (2017) | 1.53 in (1959) |
| December 29 | 46.9°F (2024) | -9.9°F (1998) | 1.42 in (2015) |
| December 30 | 53.1°F (2022) | -11.9°F (2013) | 0.80 in (1972) |
| December 31 | 52.0°F (2004) | -11.9°F (2013) | 0.46 in (1936) |