December weather in Rockvale, CO
The average temperature in Rockvale in December is 33.8°F (18.7°F–49.0°F). Average precipitation: 0.46 inches. Average snowfall is 6.2 inches.
December is a winter month in Rockvale, and is cooler than the annual average of 52.1°F. Daily temperatures swing about 30.3°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 9h 20m. For travel, December is cool.
Avg High
49.0°F
Avg Low
18.7°F
Precipitation
0.46 in
Snow
6.2 in
December records in Rockvale
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 73.0°F (2003) | 0.0°F (1991) | 0.28 in (1894) |
| December 2 | 77.0°F (2021) | 1.9°F (1991) | 0.98 in (1933) |
| December 3 | 75.9°F (2021) | 3.0°F (1897) | 0.55 in (1927) |
| December 4 | 72.0°F (1989) | 1.9°F (2009) | 0.43 in (2025) |
| December 5 | 72.0°F (1946) | -7.1°F (2013) | 1.55 in (1913) |
| December 6 | 73.0°F (1918) | -16.1°F (1972) | 0.33 in (1989) |
| December 7 | 73.0°F (2023) | -5.1°F (1927) | 0.45 in (1971) |
| December 8 | 72.0°F (1940) | -13.0°F (2005) | 0.53 in (1898) |
| December 9 | 71.1°F (1981) | -25.1°F (1919) | 0.82 in (2008) |
| December 10 | 72.0°F (1915) | -25.1°F (1919) | 0.53 in (1985) |
| December 11 | 73.0°F (1937) | -11.9°F (1985) | 0.61 in (1972) |
| December 12 | 75.0°F (1906) | -11.9°F (1985) | 0.38 in (1901) |
| December 13 | 70.0°F (2017) | -11.9°F (1919) | 0.73 in (1899) |
| December 14 | 72.0°F (1924) | -20.9°F (1901) | 0.60 in (1925) |
| December 15 | 73.9°F (1893) | -18.9°F (2008) | 0.40 in (1988) |
| December 16 | 77.0°F (1928) | -16.1°F (2008) | 0.44 in (2019) |
| December 17 | 71.1°F (1942) | -6.0°F (1989) | 0.56 in (2016) |
| December 18 | 75.9°F (1980) | -18.9°F (2016) | 0.61 in (1934) |
| December 19 | 71.1°F (1917) | -14.1°F (1924) | 0.39 in (1911) |
| December 20 | 75.0°F (1917) | -11.0°F (1924) | 0.30 in (1914) |
| December 21 | 75.9°F (1917) | -25.1°F (1990) | 0.62 in (1916) |
| December 22 | 70.0°F (1896) | -25.1°F (1990) | 0.50 in (1926) |
| December 23 | 73.9°F (2025) | -24.0°F (1990) | 0.38 in (1924) |
| December 24 | 70.0°F (1917) | -11.0°F (2004) | 0.53 in (1974) |
| December 25 | 72.0°F (2025) | -9.9°F (1983) | 0.20 in (1911) |
| December 26 | 73.0°F (1928) | -4.0°F (1990) | 0.35 in (1942) |
| December 27 | 81.0°F (1928) | -14.1°F (1904) | 0.60 in (1969) |
| December 28 | 82.0°F (1928) | -11.0°F (1894) | 0.40 in (1969) |
| December 29 | 75.0°F (1922) | -9.0°F (1983) | 0.97 in (2006) |
| December 30 | 72.0°F (1917) | -9.9°F (1990) | 0.30 in (1900) |
| December 31 | 73.9°F (1980) | -25.1°F (1900) | 0.80 in (1947) |