December weather in Windsor, CA
The average temperature in Windsor in December is 47.2°F (36.9°F–57.5°F). Average precipitation: 6.76 inches.
December is a winter month in Windsor, and is cooler than the annual average of 58.1°F. Daily temperatures swing about 20.6°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 9h 19m. For travel, December is a wet month.
Avg High
57.5°F
Avg Low
36.9°F
Precipitation
6.76 in
Daylight
9h 19m
December records in Windsor
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 73.0°F (2011) | 23.0°F (2007) | 3.78 in (2019) |
| December 2 | 75.0°F (2011) | 26.1°F (2004) | 1.67 in (2012) |
| December 3 | 69.1°F (2025) | 26.1°F (2004) | 1.25 in (2014) |
| December 4 | 69.1°F (2020) | 26.1°F (2004) | 0.71 in (2012) |
| December 5 | 70.0°F (2024) | 24.3°F (2013) | 1.05 in (2010) |
| December 6 | 71.1°F (2024) | 22.1°F (2013) | 1.56 in (2004) |
| December 7 | 77.0°F (2020) | 25.0°F (2009) | 1.31 in (2019) |
| December 8 | 73.9°F (2020) | 21.0°F (2009) | 1.52 in (2004) |
| December 9 | 69.1°F (2012) | 19.2°F (2013) | 0.82 in (2006) |
| December 10 | 68.0°F (2012) | 22.1°F (2013) | 1.32 in (2014) |
| December 11 | 66.9°F (1999) | 24.3°F (2013) | 4.66 in (2014) |
| December 12 | 66.9°F (2018) | 24.3°F (2013) | 1.82 in (2021) |
| December 13 | 63.0°F (2013) | 25.2°F (2013) | 4.60 in (2002) |
| December 14 | 66.0°F (2017) | 25.0°F (2008) | 1.31 in (2024) |
| December 15 | 69.1°F (1998) | 28.0°F (1999) | 2.57 in (2016) |
| December 16 | 70.0°F (2011) | 26.2°F (2022) | 1.28 in (2002) |
| December 17 | 69.1°F (2017) | 24.1°F (2008) | 0.96 in (2010) |
| December 18 | 64.0°F (1998) | 24.1°F (2008) | 2.74 in (2023) |
| December 19 | 78.1°F (1999) | 24.1°F (2006) | 1.54 in (2002) |
| December 20 | 69.1°F (1999) | 26.1°F (2006) | 1.78 in (2023) |
| December 21 | 77.0°F (1999) | 21.0°F (1998) | 2.55 in (2012) |
| December 22 | 70.0°F (1999) | 21.0°F (1998) | 1.09 in (2005) |
| December 23 | 70.0°F (2004) | 21.0°F (1998) | 2.37 in (2012) |
| December 24 | 69.1°F (2013) | 23.0°F (1998) | 1.56 in (2003) |
| December 25 | 66.9°F (2013) | 26.1°F (1998) | 1.06 in (2020) |
| December 26 | 66.0°F (2013) | 26.1°F (2011) | 2.30 in (2006) |
| December 27 | 63.0°F (1999) | 27.1°F (2015) | 2.70 in (2005) |
| December 28 | 71.1°F (2013) | 23.2°F (2013) | 1.76 in (2010) |
| December 29 | 66.0°F (2013) | 27.1°F (2013) | 3.32 in (2003) |
| December 30 | 64.9°F (2018) | 26.2°F (2013) | 3.42 in (2005) |
| December 31 | 64.0°F (2014) | 28.0°F (2012) | 1.93 in (2005) |