December weather in Jackson, WY
The average temperature in Jackson in December is 16.5°F (6.8°F–26.2°F). Average precipitation: 1.76 inches. Average snowfall is 16.4 inches.
December is a winter month in Jackson, and is cooler than the annual average of 38°F. Daily temperatures swing about 19.4°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 8h 47m. For travel, December is cold.
Avg High
26.2°F
Avg Low
6.8°F
Precipitation
1.76 in
Snow
16.4 in
December records in Jackson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 55.0°F (1995) | -20.0°F (1967) | 0.65 in (1921) |
| December 2 | 53.1°F (1926) | -20.0°F (1984) | 0.67 in (2005) |
| December 3 | 55.9°F (2021) | -27.9°F (1984) | 1.10 in (1941) |
| December 4 | 51.1°F (1979) | -31.0°F (1992) | 0.60 in (1972) |
| December 5 | 51.1°F (1918) | -32.1°F (1972) | 0.72 in (1978) |
| December 6 | 54.0°F (1939) | -27.0°F (1984) | 0.95 in (1923) |
| December 7 | 46.0°F (1987) | -32.1°F (1992) | 0.50 in (1952) |
| December 8 | 55.0°F (1939) | -32.1°F (1971) | 0.33 in (2012) |
| December 9 | 53.1°F (1940) | -38.9°F (1972) | 0.49 in (1970) |
| December 10 | 57.9°F (1939) | -35.0°F (1972) | 0.76 in (1922) |
| December 11 | 52.0°F (1939) | -40.0°F (1961) | 1.10 in (1937) |
| December 12 | 61.0°F (1921) | -29.9°F (1997) | 0.60 in (1958) |
| December 13 | 48.9°F (2025) | -27.9°F (1967) | 0.80 in (1995) |
| December 14 | 59.0°F (1921) | -23.1°F (1931) | 0.45 in (1928) |
| December 15 | 46.9°F (1921) | -33.0°F (1972) | 0.50 in (2006) |
| December 16 | 53.1°F (1939) | -24.0°F (1990) | 1.10 in (1999) |
| December 17 | 66.0°F (1906) | -32.1°F (1964) | 0.46 in (2025) |
| December 18 | 46.9°F (1998) | -27.0°F (1964) | 0.97 in (1978) |
| December 19 | 48.9°F (1917) | -45.9°F (1924) | 0.60 in (1981) |
| December 20 | 44.1°F (2013) | -52.1°F (1924) | 1.40 in (1921) |
| December 21 | 55.0°F (1933) | -33.0°F (1990) | 0.45 in (1931) |
| December 22 | 46.9°F (2020) | -38.0°F (1990) | 1.15 in (1964) |
| December 23 | 45.0°F (1955) | -40.0°F (1990) | 1.40 in (1964) |
| December 24 | 48.0°F (2025) | -32.1°F (1990) | 0.55 in (1964) |
| December 25 | 46.9°F (1950) | -32.1°F (1952) | 1.02 in (1955) |
| December 26 | 46.0°F (1931) | -36.0°F (1952) | 0.60 in (1932) |
| December 27 | 46.0°F (1980) | -27.9°F (1954) | 0.52 in (1996) |
| December 28 | 48.9°F (1980) | -29.9°F (1954) | 0.73 in (1923) |
| December 29 | 48.9°F (1933) | -27.9°F (1982) | 0.72 in (2005) |
| December 30 | 52.0°F (1933) | -45.0°F (1978) | 0.55 in (1975) |
| December 31 | 46.9°F (1917) | -49.0°F (1978) | 1.90 in (1931) |