December weather in Ten Sleep, WY
The average temperature in Ten Sleep in December is 25.8°F (15.2°F–36.3°F). Average precipitation: 0.71 inches. Average snowfall is 9.5 inches.
December is a winter month in Ten Sleep, and is cooler than the annual average of 47.8°F. Daily temperatures swing about 21.1°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 8h 43m. For travel, December is cold.
Avg High
36.3°F
Avg Low
15.2°F
Precipitation
0.71 in
Snow
9.5 in
December records in Ten Sleep
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 63.0°F (1995) | -17.0°F (1985) | 0.72 in (1982) |
| December 2 | 64.9°F (2021) | -16.1°F (1985) | 0.62 in (1984) |
| December 3 | 60.1°F (1975) | -11.0°F (1978) | 0.32 in (2008) |
| December 4 | 64.0°F (1965) | -9.9°F (1972) | 0.20 in (1972) |
| December 5 | 57.9°F (1979) | -23.1°F (1972) | 0.21 in (2016) |
| December 6 | 63.0°F (1965) | -18.0°F (1972) | 0.27 in (2005) |
| December 7 | 57.9°F (1965) | -20.0°F (1972) | 0.42 in (1982) |
| December 8 | 60.1°F (2020) | -22.0°F (1972) | 0.28 in (2003) |
| December 9 | 63.0°F (1990) | -20.0°F (2009) | 0.30 in (1970) |
| December 10 | 64.0°F (1990) | -18.9°F (1972) | 0.20 in (1970) |
| December 11 | 60.1°F (1981) | -11.9°F (1972) | 0.25 in (1965) |
| December 12 | 55.9°F (2014) | -9.9°F (2000) | 0.31 in (2020) |
| December 13 | 55.9°F (1980) | -6.0°F (1972) | 0.28 in (1975) |
| December 14 | 61.0°F (2025) | -15.0°F (2008) | 0.41 in (1990) |
| December 15 | 60.1°F (1980) | -18.0°F (2008) | 0.42 in (2014) |
| December 16 | 59.0°F (1980) | -18.0°F (2008) | 0.25 in (1975) |
| December 17 | 60.1°F (1980) | -27.0°F (1964) | 0.30 in (1968) |
| December 18 | 60.1°F (1979) | -16.1°F (1983) | 0.52 in (1998) |
| December 19 | 59.0°F (1979) | -15.0°F (1990) | 0.33 in (1997) |
| December 20 | 57.0°F (2003) | -22.0°F (1990) | 0.22 in (2025) |
| December 21 | 57.0°F (1994) | -33.0°F (1990) | 0.60 in (2011) |
| December 22 | 60.1°F (2025) | -34.1°F (1990) | 0.21 in (2013) |
| December 23 | 57.9°F (2025) | -26.0°F (1983) | 0.28 in (1987) |
| December 24 | 62.1°F (2025) | -27.9°F (1983) | 0.81 in (1984) |
| December 25 | 60.1°F (2025) | -17.0°F (1983) | 0.46 in (2014) |
| December 26 | 55.9°F (1980) | -11.0°F (1996) | 0.45 in (2016) |
| December 27 | 66.0°F (1980) | -6.0°F (1988) | 0.45 in (2003) |
| December 28 | 53.1°F (1965) | -15.0°F (1983) | 0.15 in (1967) |
| December 29 | 55.0°F (1980) | -26.0°F (1990) | 0.11 in (1997) |
| December 30 | 57.9°F (1980) | -27.9°F (1990) | 0.28 in (2010) |
| December 31 | 53.1°F (1996) | -26.0°F (1978) | 0.58 in (1981) |