December weather in Belgrade, MT
The average temperature in Belgrade in December is 20.7°F (9.7°F–31.7°F). Average precipitation: 0.44 inches.
December is a winter month in Belgrade, and is cooler than the annual average of 43°F. Daily temperatures swing about 22°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 8h 29m. For travel, December is cold.
Avg High
31.7°F
Avg Low
9.7°F
Precipitation
0.44 in
Daylight
8h 29m
December records in Belgrade
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 66.0°F (2021) | -23.1°F (1985) | 0.32 in (1996) |
| December 2 | 64.9°F (2021) | -14.1°F (1978) | 0.22 in (1951) |
| December 3 | 60.1°F (1956) | -15.0°F (1984) | 0.52 in (1998) |
| December 4 | 60.1°F (1975) | -35.0°F (1972) | 0.35 in (1983) |
| December 5 | 60.1°F (2023) | -27.9°F (1972) | 0.30 in (1974) |
| December 6 | 57.9°F (1987) | -32.1°F (1972) | 0.33 in (1982) |
| December 7 | 52.0°F (1970) | -29.0°F (1972) | 0.33 in (2023) |
| December 8 | 57.0°F (2020) | -38.9°F (1972) | 0.08 in (1977) |
| December 9 | 62.1°F (1957) | -38.9°F (1972) | 0.19 in (1970) |
| December 10 | 61.0°F (2025) | -29.0°F (1972) | 0.25 in (1975) |
| December 11 | 60.1°F (2004) | -25.1°F (1961) | 0.28 in (1984) |
| December 12 | 51.1°F (1995) | -27.0°F (2000) | 0.25 in (2012) |
| December 13 | 55.0°F (2025) | -14.1°F (1972) | 0.17 in (2017) |
| December 14 | 62.1°F (2025) | -20.0°F (1967) | 0.37 in (1989) |
| December 15 | 61.0°F (2025) | -22.0°F (1967) | 0.22 in (1977) |
| December 16 | 55.9°F (2025) | -27.0°F (1964) | 0.25 in (1955) |
| December 17 | 55.9°F (1979) | -34.8°F (2016) | 0.14 in (1955) |
| December 18 | 61.0°F (1979) | -25.1°F (1955) | 0.29 in (1977) |
| December 19 | 57.0°F (2025) | -25.1°F (1949) | 40.00 in (1944) |
| December 20 | 54.0°F (1941) | -36.0°F (1983) | 0.21 in (1944) |
| December 21 | 57.9°F (2020) | -41.1°F (1983) | 0.25 in (1996) |
| December 22 | 55.0°F (1955) | -44.9°F (2022) | 0.15 in (2017) |
| December 23 | 51.1°F (1964) | -43.1°F (1983) | 1.04 in (1955) |
| December 24 | 55.9°F (2025) | -45.9°F (1983) | 0.28 in (1941) |
| December 25 | 57.0°F (2025) | -27.9°F (1944) | 0.44 in (1967) |
| December 26 | 60.1°F (1980) | -27.0°F (1996) | 0.32 in (1971) |
| December 27 | 63.0°F (1980) | -26.0°F (1941) | 0.21 in (1964) |
| December 28 | 51.1°F (1945) | -32.1°F (1983) | 0.35 in (2001) |
| December 29 | 55.0°F (1949) | -38.0°F (1978) | 0.37 in (1966) |
| December 30 | 55.9°F (2011) | -41.1°F (1968) | 0.29 in (1951) |
| December 31 | 48.9°F (1953) | -41.1°F (1968) | 0.13 in (1969) |