December weather in Mahnomen, MN
The average temperature in Mahnomen in December is 13.6°F (5.6°F–21.5°F). Average precipitation: 1.05 inches.
December is a winter month in Mahnomen, and is cooler than the annual average of 39.9°F. Daily temperatures swing about 15.9°F between overnight low and afternoon high. Daylight averages about 8h 17m. For travel, December is cold.
Avg High
21.5°F
Avg Low
5.6°F
Precipitation
1.05 in
Daylight
8h 17m
December records in Mahnomen
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 55.9°F (1962) | -24.0°F (1928) | 0.52 in (2019) |
| December 2 | 55.0°F (1982) | -27.9°F (1928) | 0.14 in (1968) |
| December 3 | 52.0°F (1962) | -23.1°F (1985) | 0.40 in (1953) |
| December 4 | 46.9°F (1975) | -20.0°F (1972) | 0.16 in (1968) |
| December 5 | 45.0°F (1990) | -15.0°F (1964) | 0.31 in (1991) |
| December 6 | 46.0°F (2023) | -27.9°F (1972) | 0.24 in (1969) |
| December 7 | 55.9°F (2023) | -26.0°F (1928) | 0.21 in (1969) |
| December 8 | 46.9°F (1990) | -29.9°F (1928) | 0.48 in (1995) |
| December 9 | 53.1°F (1990) | -29.9°F (1928) | 0.22 in (1961) |
| December 10 | 39.9°F (1927) | -33.0°F (1977) | 1.40 in (1949) |
| December 11 | 46.9°F (1927) | -25.1°F (1995) | 0.41 in (1967) |
| December 12 | 39.9°F (1980) | -22.0°F (1932) | 0.80 in (1965) |
| December 13 | 42.1°F (1927) | -20.0°F (1985) | 0.62 in (1955) |
| December 14 | 46.0°F (2023) | -25.1°F (1932) | 0.21 in (1969) |
| December 15 | 44.1°F (2023) | -24.0°F (1961) | 1.50 in (2022) |
| December 16 | 46.0°F (1962) | -27.9°F (1972) | 0.40 in (1984) |
| December 17 | 46.0°F (1962) | -27.9°F (1929) | 0.24 in (1967) |
| December 18 | 43.0°F (2011) | -29.9°F (1983) | 0.40 in (2021) |
| December 19 | 37.9°F (1979) | -33.0°F (1983) | 1.60 in (2022) |
| December 20 | 39.9°F (1979) | -32.1°F (1963) | 0.41 in (1990) |
| December 21 | 41.0°F (1994) | -33.0°F (1963) | 0.30 in (1951) |
| December 22 | 39.9°F (1994) | -27.9°F (1963) | 0.32 in (1968) |
| December 23 | 45.0°F (1994) | -33.0°F (1983) | 0.45 in (1935) |
| December 24 | 44.1°F (1994) | -36.0°F (1933) | 0.12 in (1933) |
| December 25 | 48.0°F (1994) | -34.1°F (1992) | 0.17 in (1942) |
| December 26 | 46.9°F (2011) | -38.9°F (1990) | 0.46 in (1968) |
| December 27 | 42.1°F (1994) | -25.1°F (1960) | 0.38 in (1959) |
| December 28 | 39.9°F (2024) | -38.9°F (1933) | 0.60 in (2021) |
| December 29 | 39.9°F (1929) | -38.9°F (2021) | 0.32 in (2019) |
| December 30 | 36.0°F (1929) | -35.0°F (1976) | 0.43 in (2019) |
| December 31 | 36.0°F (1929) | -38.0°F (2021) | 0.28 in (1972) |