December weather in Basin, WY
The average temperature in Basin in December is 22.6°F (11.4°F–33.8°F). Average precipitation: 0.30 inches. Average snowfall is 4.0 inches.
December is a winter month in Basin, and is cooler than the annual average of 48.9°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 3 days with precipitation. Daylight averages about 8h 40m. For travel, December is cold.
Avg High
33.8°F
Avg Low
11.4°F
Precipitation
0.30 in
Snow
4.0 in
December records in Basin
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.0°F (1999) | -20.0°F (1985) | 0.41 in (1919) |
| December 2 | 66.9°F (1995) | -25.1°F (1919) | 0.43 in (1909) |
| December 3 | 62.1°F (2021) | -20.0°F (1919) | 0.25 in (1952) |
| December 4 | 62.1°F (1979) | -17.0°F (1919) | 0.18 in (1972) |
| December 5 | 57.0°F (1979) | -34.1°F (1972) | 0.13 in (2016) |
| December 6 | 55.9°F (1914) | -35.0°F (1972) | 0.40 in (1927) |
| December 7 | 59.0°F (1918) | -25.1°F (1972) | 0.25 in (1950) |
| December 8 | 57.9°F (1939) | -36.0°F (1972) | 0.18 in (1938) |
| December 9 | 55.0°F (1912) | -35.0°F (1919) | 0.06 in (1963) |
| December 10 | 62.1°F (1939) | -38.0°F (1972) | 0.21 in (1909) |
| December 11 | 64.9°F (2004) | -35.0°F (1972) | 0.13 in (2012) |
| December 12 | 57.0°F (1929) | -27.0°F (1932) | 0.30 in (1992) |
| December 13 | 57.0°F (1929) | -38.0°F (1919) | 0.16 in (1937) |
| December 14 | 57.9°F (1988) | -25.1°F (1972) | 0.36 in (1922) |
| December 15 | 61.0°F (2021) | -29.9°F (1922) | 1.45 in (1989) |
| December 16 | 59.0°F (2025) | -26.0°F (1914) | 0.41 in (1901) |
| December 17 | 61.0°F (2025) | -33.0°F (1964) | 0.50 in (1929) |
| December 18 | 57.9°F (2025) | -32.1°F (1924) | 0.09 in (1921) |
| December 19 | 57.9°F (2025) | -36.0°F (1924) | 0.11 in (1996) |
| December 20 | 57.0°F (1957) | -33.0°F (1924) | 0.10 in (1981) |
| December 21 | 54.0°F (1933) | -36.0°F (1990) | 0.26 in (1921) |
| December 22 | 61.0°F (1933) | -41.1°F (1990) | 0.31 in (1999) |
| December 23 | 63.0°F (1933) | -34.1°F (1989) | 0.19 in (2017) |
| December 24 | 57.9°F (2021) | -27.9°F (1990) | 0.30 in (1984) |
| December 25 | 61.0°F (2025) | -27.0°F (1909) | 0.24 in (2014) |
| December 26 | 55.9°F (2025) | -23.1°F (1996) | 0.36 in (2008) |
| December 27 | 57.9°F (1980) | -17.0°F (1990) | 0.20 in (2024) |
| December 28 | 55.0°F (1980) | -16.1°F (1913) | 0.20 in (1927) |
| December 29 | 53.1°F (1965) | -27.9°F (1978) | 0.50 in (1918) |
| December 30 | 55.0°F (1980) | -40.0°F (1978) | 0.30 in (1981) |
| December 31 | 51.1°F (1954) | -43.1°F (1978) | 0.13 in (2017) |