December weather in Grand Marais, MN
The average temperature in Grand Marais in December is 19.5°F (12.6°F–26.3°F). Average precipitation: 1.46 inches. Average snowfall is 13.4 inches.
December is a winter month in Grand Marais, and is cooler than the annual average of 38.3°F. Daily temperatures swing about 13.7°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 8h 13m. For travel, December is cold.
Avg High
26.3°F
Avg Low
12.6°F
Precipitation
1.46 in
Snow
13.4 in
December records in Grand Marais
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 50.0°F (1916) | -18.0°F (1919) | 1.12 in (2007) |
| December 2 | 55.0°F (1962) | -17.0°F (1919) | 0.61 in (2006) |
| December 3 | 52.0°F (1951) | -16.1°F (1940) | 0.50 in (1928) |
| December 4 | 55.0°F (1913) | -16.1°F (1940) | 0.85 in (1953) |
| December 5 | 57.0°F (1913) | -14.1°F (1991) | 0.84 in (1960) |
| December 6 | 64.9°F (1913) | -11.0°F (1972) | 0.80 in (1966) |
| December 7 | 69.1°F (1913) | -18.0°F (1976) | 1.00 in (1935) |
| December 8 | 66.9°F (1913) | -23.1°F (1932) | 0.40 in (1925) |
| December 9 | 63.0°F (1913) | -17.0°F (1932) | 0.65 in (2024) |
| December 10 | 50.0°F (2020) | -18.0°F (1919) | 0.33 in (1961) |
| December 11 | 44.1°F (1913) | -17.0°F (1933) | 1.02 in (1948) |
| December 12 | 48.9°F (1923) | -18.0°F (2008) | 0.96 in (2004) |
| December 13 | 48.0°F (1923) | -18.0°F (1976) | 0.80 in (1926) |
| December 14 | 45.0°F (1913) | -18.0°F (1919) | 0.51 in (2008) |
| December 15 | 46.0°F (1998) | -24.0°F (2008) | 1.09 in (2022) |
| December 16 | 46.0°F (1984) | -20.0°F (1926) | 1.78 in (1984) |
| December 17 | 45.0°F (1913) | -25.1°F (1919) | 1.22 in (2015) |
| December 18 | 59.0°F (2001) | -20.9°F (1975) | 1.00 in (2022) |
| December 19 | 48.0°F (1913) | -20.9°F (1983) | 0.54 in (2025) |
| December 20 | 53.1°F (1913) | -22.0°F (1989) | 0.50 in (1990) |
| December 21 | 46.9°F (1913) | -18.9°F (1989) | 0.64 in (1981) |
| December 22 | 48.0°F (1913) | -16.1°F (1924) | 0.60 in (1968) |
| December 23 | 46.0°F (1919) | -16.1°F (1983) | 0.60 in (1934) |
| December 24 | 46.0°F (1923) | -24.0°F (1921) | 0.68 in (1959) |
| December 25 | 45.0°F (2023) | -27.0°F (1933) | 0.42 in (2023) |
| December 26 | 45.0°F (2023) | -34.1°F (1917) | 0.89 in (1938) |
| December 27 | 46.0°F (1928) | -26.0°F (1917) | 1.32 in (1946) |
| December 28 | 46.9°F (1979) | -25.1°F (1933) | 0.80 in (2018) |
| December 29 | 46.0°F (1914) | -20.9°F (1933) | 0.43 in (2019) |
| December 30 | 43.0°F (1979) | -20.0°F (1962) | 1.00 in (1936) |
| December 31 | 39.9°F (1914) | -27.0°F (1967) | 1.08 in (1937) |