December weather in Dunsmuir, CA
The average temperature in Dunsmuir in December is 38.9°F (30.1°F–47.7°F). Average precipitation: 12.57 inches. Average snowfall is 6.8 inches.
December is a winter month in Dunsmuir, and is cooler than the annual average of 53.9°F. Daily temperatures swing about 17.6°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 9h 2m. For travel, December is a wet month.
Avg High
47.7°F
Avg Low
30.1°F
Precipitation
12.57 in
Snow
6.8 in
December records in Dunsmuir
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 70.0°F (2008) | 19.9°F (2007) | 4.01 in (1987) |
| December 2 | 70.0°F (2021) | 19.0°F (2022) | 4.40 in (2012) |
| December 3 | 66.9°F (2021) | 19.0°F (2022) | 4.76 in (1980) |
| December 4 | 66.0°F (2021) | 21.9°F (2013) | 2.35 in (1980) |
| December 5 | 64.9°F (2000) | 14.0°F (2013) | 2.75 in (1987) |
| December 6 | 66.9°F (1988) | 14.0°F (2013) | 3.42 in (2004) |
| December 7 | 66.0°F (2006) | 16.0°F (2013) | 4.01 in (1993) |
| December 8 | 64.9°F (1979) | 9.0°F (2013) | 4.23 in (1996) |
| December 9 | 64.9°F (1988) | 10.0°F (2009) | 4.16 in (1996) |
| December 10 | 77.0°F (1995) | 12.9°F (2009) | 2.57 in (1995) |
| December 11 | 64.9°F (1988) | 15.1°F (2009) | 5.80 in (1995) |
| December 12 | 68.0°F (1988) | 21.9°F (2013) | 2.27 in (2014) |
| December 13 | 64.9°F (2025) | 21.9°F (2013) | 4.02 in (2002) |
| December 14 | 63.0°F (1989) | 21.0°F (1990) | 3.65 in (2002) |
| December 15 | 75.0°F (1980) | 21.9°F (1990) | 4.16 in (2002) |
| December 16 | 72.0°F (1980) | 21.9°F (2006) | 4.12 in (1982) |
| December 17 | 69.1°F (1998) | 14.0°F (2008) | 3.42 in (1982) |
| December 18 | 66.9°F (2004) | 14.0°F (2008) | 2.90 in (2005) |
| December 19 | 64.0°F (1985) | 19.9°F (2012) | 3.91 in (1981) |
| December 20 | 64.9°F (1985) | 16.0°F (1990) | 3.10 in (1981) |
| December 21 | 63.0°F (1985) | 3.9°F (1990) | 3.14 in (1982) |
| December 22 | 63.0°F (1989) | 6.1°F (1990) | 1.78 in (2010) |
| December 23 | 64.9°F (1985) | 15.1°F (1990) | 3.31 in (2003) |
| December 24 | 70.0°F (1985) | 16.0°F (1990) | 3.06 in (1979) |
| December 25 | 64.9°F (1999) | 19.9°F (2016) | 1.85 in (2025) |
| December 26 | 64.9°F (1999) | 18.0°F (2016) | 3.00 in (2006) |
| December 27 | 66.0°F (1999) | 19.9°F (2007) | 5.60 in (2002) |
| December 28 | 63.0°F (1997) | 15.1°F (1988) | 2.47 in (1996) |
| December 29 | 62.1°F (1997) | 19.9°F (1990) | 2.68 in (2024) |
| December 30 | 64.9°F (1989) | 16.0°F (1990) | 4.35 in (1996) |
| December 31 | 64.0°F (2000) | 16.0°F (1990) | 6.44 in (1996) |