December weather in Keenesburg, CO
The average temperature in Keenesburg in December is 30.6°F (17.8°F–43.4°F). Average precipitation: 0.55 inches. Average snowfall is 5.6 inches.
December is a winter month in Keenesburg, and is cooler than the annual average of 52.1°F. Daily temperatures swing about 25.6°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 9h 9m. For travel, December is cold.
Avg High
43.4°F
Avg Low
17.8°F
Precipitation
0.55 in
Snow
5.6 in
December records in Keenesburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 72.0°F (2021) | -9.9°F (1985) | 0.38 in (2011) |
| December 2 | 71.1°F (2021) | -0.9°F (1985) | 0.36 in (1978) |
| December 3 | 69.1°F (2010) | -6.0°F (2006) | 0.23 in (2025) |
| December 4 | 75.9°F (2007) | -0.9°F (2009) | 0.35 in (2008) |
| December 5 | 70.0°F (2021) | -8.0°F (2013) | 0.58 in (1972) |
| December 6 | 64.0°F (2020) | -22.0°F (1972) | 0.23 in (1978) |
| December 7 | 66.0°F (2023) | -11.0°F (1972) | 0.33 in (1988) |
| December 8 | 66.0°F (1970) | -18.9°F (1978) | 0.41 in (2007) |
| December 9 | 64.0°F (1975) | -17.0°F (1978) | 0.65 in (1985) |
| December 10 | 66.0°F (1981) | -18.9°F (1972) | 0.20 in (1985) |
| December 11 | 71.1°F (2025) | -16.1°F (1972) | 0.22 in (2007) |
| December 12 | 64.9°F (2017) | -15.0°F (1985) | 0.14 in (2015) |
| December 13 | 69.1°F (2010) | -11.0°F (1985) | 0.35 in (1984) |
| December 14 | 60.1°F (1969) | -7.1°F (1972) | 0.20 in (1988) |
| December 15 | 66.9°F (1980) | -13.0°F (2008) | 0.81 in (2015) |
| December 16 | 70.0°F (1980) | -4.0°F (2008) | 0.11 in (1981) |
| December 17 | 75.0°F (1980) | -2.0°F (2016) | 0.38 in (2016) |
| December 18 | 60.1°F (1976) | -11.9°F (2016) | 0.37 in (1973) |
| December 19 | 66.0°F (2025) | -8.0°F (1989) | 0.25 in (1973) |
| December 20 | 64.0°F (1981) | -11.9°F (1990) | 1.10 in (2006) |
| December 21 | 66.0°F (2021) | -18.0°F (1983) | 1.05 in (2006) |
| December 22 | 70.0°F (2025) | -24.0°F (1989) | 0.31 in (2022) |
| December 23 | 68.0°F (2025) | -18.0°F (2022) | 0.59 in (2009) |
| December 24 | 63.0°F (2025) | -15.0°F (1983) | 0.15 in (1983) |
| December 25 | 68.0°F (2025) | -9.0°F (1983) | 0.10 in (2016) |
| December 26 | 69.1°F (1980) | -4.0°F (2012) | 0.46 in (2014) |
| December 27 | 64.0°F (2025) | -4.0°F (1967) | 0.75 in (1979) |
| December 28 | 64.9°F (1999) | -7.1°F (1988) | 0.25 in (1979) |
| December 29 | 66.9°F (2017) | -17.0°F (1983) | 0.59 in (2006) |
| December 30 | 72.0°F (1980) | -13.0°F (1990) | 0.30 in (1973) |
| December 31 | 64.0°F (2025) | -17.0°F (2014) | 0.61 in (1975) |