December weather in Jamestown, CO
The average temperature in Jamestown in December is °F (°F–°F). Average precipitation: 2.16 inches.
December is a winter month in Jamestown, and is cooler than the annual average of 0°F. Expect about 12 days with precipitation. Daylight averages about 9h 9m.
Avg High
°F
Avg Low
°F
Precipitation
2.16 in
Daylight
9h 9m
December records in Jamestown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 51.1°F (1998) | -10.1°F (1991) | 0.60 in (2005) |
| December 2 | 68.0°F (2005) | -11.2°F (2009) | 0.30 in (1981) |
| December 3 | 61.0°F (2005) | -17.0°F (2009) | 0.80 in (2025) |
| December 4 | 68.7°F (2006) | -13.0°F (2013) | 0.50 in (1995) |
| December 5 | 67.6°F (2006) | -15.9°F (2011) | 0.70 in (1996) |
| December 6 | 61.9°F (2006) | -17.3°F (2005) | 0.60 in (1983) |
| December 7 | 55.9°F (2006) | -24.3°F (2005) | 0.60 in (1983) |
| December 8 | 85.1°F (2005) | -17.3°F (2016) | 0.60 in (2023) |
| December 9 | 73.8°F (2006) | -9.0°F (1999) | 0.50 in (2004) |
| December 10 | 71.2°F (2006) | -11.0°F (1998) | 1.10 in (1987) |
| December 11 | 63.7°F (2005) | -9.9°F (1989) | 0.50 in (2016) |
| December 12 | 59.5°F (2005) | -2.0°F (1997) | 0.30 in (1996) |
| December 13 | 67.6°F (2006) | -8.9°F (1992) | 0.40 in (2019) |
| December 14 | 72.7°F (2006) | -15.9°F (2007) | 0.80 in (2016) |
| December 15 | 53.2°F (2025) | -9.8°F (2008) | 0.60 in (2015) |
| December 16 | 74.1°F (2006) | -10.5°F (1996) | 0.40 in (1996) |
| December 17 | 55.2°F (2005) | -16.6°F (1996) | 0.60 in (2012) |
| December 18 | 46.2°F (2006) | -17.0°F (1996) | 0.40 in (2010) |
| December 19 | 60.1°F (2005) | -13.0°F (1998) | 0.60 in (2010) |
| December 20 | 45.3°F (2003) | -21.5°F (1990) | 2.00 in (2006) |
| December 21 | 46.9°F (1994) | -19.3°F (1990) | 0.80 in (2022) |
| December 22 | 47.1°F (1994) | -15.7°F (2022) | 0.50 in (1983) |
| December 23 | 71.6°F (2006) | -17.1°F (1990) | 0.70 in (1982) |
| December 24 | 49.1°F (2006) | -10.1°F (2002) | 1.40 in (1982) |
| December 25 | 78.3°F (2005) | -9.9°F (1997) | 0.70 in (2017) |
| December 26 | 67.6°F (2006) | -14.3°F (2015) | 0.40 in (1987) |
| December 27 | 55.8°F (2006) | -15.3°F (2007) | 0.30 in (1987) |
| December 28 | 77.5°F (2005) | -13.0°F (2018) | 1.60 in (2006) |
| December 29 | 47.7°F (2006) | -12.6°F (2014) | 0.30 in (2024) |
| December 30 | 65.8°F (2005) | -15.7°F (2014) | 0.50 in (1981) |
| December 31 | 56.8°F (2006) | -15.7°F (2018) | 0.80 in (2021) |