December weather in Sundance, WY
The average temperature in Sundance in December is 23.1°F (13.7°F–32.5°F). Average precipitation: 0.51 inches. Average snowfall is 12.2 inches.
December is a winter month in Sundance, and is cooler than the annual average of 43.8°F. Daily temperatures swing about 18.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 8h 40m. For travel, December is cold.
Avg High
32.5°F
Avg Low
13.7°F
Precipitation
0.51 in
Snow
12.2 in
December records in Sundance
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 62.1°F (1932) | -20.9°F (1985) | 0.49 in (2018) |
| December 2 | 59.0°F (2012) | -23.1°F (1985) | 0.20 in (1940) |
| December 3 | 61.0°F (1941) | -16.1°F (1897) | 0.37 in (1927) |
| December 4 | 57.9°F (1987) | -11.0°F (1972) | 0.41 in (2002) |
| December 5 | 57.9°F (1987) | -25.1°F (1972) | 0.41 in (1993) |
| December 6 | 57.0°F (2020) | -27.0°F (1972) | 0.60 in (1937) |
| December 7 | 54.0°F (1918) | -25.1°F (2013) | 0.40 in (1917) |
| December 8 | 59.0°F (1925) | -25.1°F (1932) | 0.50 in (1917) |
| December 9 | 61.0°F (1990) | -32.1°F (1919) | 0.24 in (1932) |
| December 10 | 60.1°F (1990) | -27.0°F (1932) | 0.32 in (1947) |
| December 11 | 57.0°F (2014) | -36.9°F (1932) | 0.30 in (1916) |
| December 12 | 62.1°F (2014) | -23.1°F (1932) | 0.60 in (1916) |
| December 13 | 57.9°F (2014) | -24.0°F (1919) | 0.80 in (1916) |
| December 14 | 57.9°F (1998) | -18.0°F (1922) | 0.43 in (1996) |
| December 15 | 64.9°F (1923) | -25.1°F (2008) | 0.40 in (1948) |
| December 16 | 57.0°F (1923) | -23.1°F (1924) | 0.43 in (1927) |
| December 17 | 64.0°F (1923) | -36.0°F (1964) | 0.25 in (1996) |
| December 18 | 54.0°F (1931) | -24.0°F (1924) | 0.40 in (1916) |
| December 19 | 54.0°F (1919) | -29.0°F (1916) | 0.50 in (1916) |
| December 20 | 57.9°F (1941) | -29.9°F (1990) | 0.76 in (1894) |
| December 21 | 54.0°F (1994) | -33.0°F (1990) | 0.50 in (1911) |
| December 22 | 55.0°F (1933) | -33.0°F (1990) | 0.36 in (1934) |
| December 23 | 53.1°F (1936) | -27.9°F (1983) | 0.43 in (1980) |
| December 24 | 57.0°F (1936) | -40.0°F (1983) | 0.80 in (1990) |
| December 25 | 53.1°F (1999) | -20.9°F (1983) | 0.20 in (1895) |
| December 26 | 50.0°F (1946) | -20.0°F (1933) | 0.50 in (1895) |
| December 27 | 55.0°F (2013) | -18.0°F (1894) | 0.30 in (2003) |
| December 28 | 54.0°F (2002) | -18.0°F (1917) | 0.46 in (1940) |
| December 29 | 57.0°F (1965) | -38.0°F (1990) | 0.42 in (1915) |
| December 30 | 54.0°F (1996) | -27.9°F (1968) | 0.60 in (1895) |
| December 31 | 48.9°F (1996) | -29.0°F (1923) | 0.44 in (1960) |