December weather in Fennimore, WI
The average temperature in Fennimore in December is 25.6°F (17.0°F–34.3°F). Average precipitation: 1.32 inches.
December is a winter month in Fennimore, and is cooler than the annual average of 48.1°F. Daily temperatures swing about 17.3°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 8h 50m. For travel, December is cold.
Avg High
34.3°F
Avg Low
17.0°F
Precipitation
1.32 in
Daylight
8h 50m
December records in Fennimore
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 55.0°F (2017) | 1.2°F (2014) | 0.40 in (2018) |
| December 2 | 55.0°F (2021) | 1.9°F (2002) | 0.61 in (2007) |
| December 3 | 68.0°F (2012) | 0.0°F (2002) | 1.06 in (2011) |
| December 4 | 64.0°F (2001) | -9.0°F (2025) | 0.47 in (2017) |
| December 5 | 64.9°F (2001) | -5.1°F (2005) | 0.38 in (2004) |
| December 6 | 50.0°F (2001) | -10.8°F (2007) | 0.13 in (2004) |
| December 7 | 55.9°F (2024) | -8.0°F (2005) | 0.51 in (2004) |
| December 8 | 57.0°F (2023) | -6.0°F (2025) | 0.44 in (2009) |
| December 9 | 55.9°F (2020) | -12.8°F (2013) | 0.77 in (2022) |
| December 10 | 59.0°F (2015) | -15.9°F (2013) | 0.34 in (2021) |
| December 11 | 50.0°F (2001) | -8.9°F (2009) | 0.86 in (2010) |
| December 12 | 51.1°F (2006) | -13.0°F (2000) | 0.23 in (2001) |
| December 13 | 61.0°F (2015) | -9.8°F (2010) | 2.03 in (2015) |
| December 14 | 60.1°F (2015) | -15.9°F (2010) | 0.94 in (2022) |
| December 15 | 72.0°F (2021) | -12.8°F (2010) | 0.62 in (2012) |
| December 16 | 57.9°F (2021) | -5.8°F (2009) | 0.24 in (2023) |
| December 17 | 45.0°F (2006) | -6.0°F (2000) | 0.09 in (2011) |
| December 18 | 55.9°F (2002) | -15.9°F (2016) | 0.32 in (2000) |
| December 19 | 50.0°F (2018) | -18.8°F (2016) | 0.65 in (2008) |
| December 20 | 48.0°F (2015) | -5.1°F (2000) | 0.46 in (2012) |
| December 21 | 50.0°F (2019) | -11.9°F (1999) | 0.39 in (2006) |
| December 22 | 55.9°F (2019) | -14.8°F (2008) | 0.48 in (2007) |
| December 23 | 55.9°F (2015) | -9.8°F (2013) | 0.64 in (2015) |
| December 24 | 55.9°F (2023) | -20.9°F (2000) | 0.80 in (2009) |
| December 25 | 59.0°F (2019) | -29.0°F (2000) | 0.80 in (2009) |
| December 26 | 51.1°F (2008) | -6.9°F (2017) | 0.22 in (2021) |
| December 27 | 52.0°F (2008) | -14.1°F (2000) | 0.55 in (2018) |
| December 28 | 52.0°F (2003) | -16.1°F (2000) | 1.26 in (2019) |
| December 29 | 55.9°F (2019) | -8.9°F (2013) | 0.23 in (2020) |
| December 30 | 59.0°F (2004) | -16.8°F (2013) | 0.27 in (2011) |
| December 31 | 51.1°F (2004) | -10.8°F (2013) | 0.57 in (2006) |