December weather in Hysham, MT
The average temperature in Hysham in December is 25.4°F (14.7°F–36.2°F). Average precipitation: 0.48 inches. Average snowfall is 7.5 inches.
December is a winter month in Hysham, and is cooler than the annual average of 47.2°F. Daily temperatures swing about 21.5°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 8h 25m. For travel, December is cold.
Avg High
36.2°F
Avg Low
14.7°F
Precipitation
0.48 in
Snow
7.5 in
December records in Hysham
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.9°F (1995) | -27.9°F (1985) | 0.23 in (1968) |
| December 2 | 68.0°F (2021) | -38.0°F (1985) | 0.28 in (1953) |
| December 3 | 62.1°F (2021) | -15.0°F (1985) | 0.80 in (2013) |
| December 4 | 62.1°F (1979) | -11.0°F (1950) | 0.30 in (1948) |
| December 5 | 61.0°F (1963) | -26.0°F (1972) | 0.12 in (1989) |
| December 6 | 66.0°F (2023) | -31.0°F (1972) | 0.17 in (1986) |
| December 7 | 61.0°F (2023) | -27.9°F (2013) | 0.75 in (1958) |
| December 8 | 61.0°F (1990) | -29.9°F (1972) | 0.37 in (1970) |
| December 9 | 66.0°F (2020) | -32.1°F (1977) | 0.15 in (2000) |
| December 10 | 64.9°F (1981) | -15.0°F (1961) | 0.30 in (1963) |
| December 11 | 66.9°F (2004) | -20.0°F (1985) | 0.30 in (1956) |
| December 12 | 64.9°F (2017) | -18.0°F (2000) | 0.29 in (2025) |
| December 13 | 57.9°F (1960) | -25.1°F (1985) | 0.25 in (2008) |
| December 14 | 57.0°F (1953) | -24.0°F (1951) | 0.45 in (1989) |
| December 15 | 70.0°F (1980) | -36.0°F (1945) | 0.23 in (2021) |
| December 16 | 64.0°F (1980) | -27.9°F (1964) | 0.32 in (2024) |
| December 17 | 63.0°F (1998) | -33.0°F (2016) | 0.25 in (2021) |
| December 18 | 64.9°F (1979) | -35.0°F (1983) | 0.40 in (1973) |
| December 19 | 62.1°F (1962) | -25.1°F (1989) | 0.23 in (2013) |
| December 20 | 62.1°F (2025) | -29.9°F (1951) | 0.55 in (1989) |
| December 21 | 60.1°F (2020) | -35.0°F (1989) | 0.23 in (1996) |
| December 22 | 64.0°F (1954) | -45.9°F (1989) | 0.72 in (1984) |
| December 23 | 59.0°F (1954) | -25.1°F (1983) | 0.21 in (1977) |
| December 24 | 54.0°F (1947) | -43.1°F (1983) | 0.75 in (1955) |
| December 25 | 55.9°F (1947) | -33.0°F (1983) | 0.27 in (1988) |
| December 26 | 60.1°F (1980) | -31.0°F (1996) | 0.33 in (2003) |
| December 27 | 63.0°F (1980) | -22.0°F (1965) | 0.40 in (2003) |
| December 28 | 60.1°F (1980) | -18.9°F (1990) | 0.30 in (2006) |
| December 29 | 60.1°F (1956) | -29.0°F (1984) | 0.25 in (2005) |
| December 30 | 60.1°F (1980) | -31.0°F (1990) | 0.40 in (2017) |
| December 31 | 57.9°F (1953) | -25.1°F (1992) | 0.15 in (2010) |