December weather in Superior, MT
The average temperature in Superior in December is 27.8°F (21.6°F–34.0°F). Average precipitation: 1.38 inches.
December is a winter month in Superior, and is cooler than the annual average of 47.7°F. Daily temperatures swing about 12.4°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 8h 18m. For travel, December is cold.
Avg High
34.0°F
Avg Low
21.6°F
Precipitation
1.38 in
Daylight
8h 18m
December records in Superior
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 54.0°F (1972) | -8.0°F (1931) | 1.40 in (2001) |
| December 2 | 55.0°F (1927) | -8.0°F (1931) | 1.01 in (2012) |
| December 3 | 61.0°F (1956) | -15.0°F (1919) | 0.86 in (2007) |
| December 4 | 57.9°F (1965) | -9.9°F (1919) | 0.67 in (2007) |
| December 5 | 54.0°F (1918) | -11.0°F (1919) | 0.36 in (1966) |
| December 6 | 55.0°F (1939) | -7.1°F (1919) | 0.57 in (1971) |
| December 7 | 55.0°F (1939) | -9.0°F (2013) | 0.56 in (1987) |
| December 8 | 55.9°F (1940) | -15.0°F (1972) | 0.30 in (1939) |
| December 9 | 55.0°F (1979) | -16.1°F (1932) | 0.80 in (1933) |
| December 10 | 55.9°F (1979) | -11.9°F (1961) | 1.00 in (1919) |
| December 11 | 55.0°F (1924) | -14.1°F (1927) | 0.80 in (1937) |
| December 12 | 57.9°F (1924) | -23.1°F (1919) | 0.66 in (1927) |
| December 13 | 57.9°F (1924) | -20.0°F (1919) | 0.40 in (1956) |
| December 14 | 59.0°F (1924) | -8.0°F (1931) | 1.40 in (2000) |
| December 15 | 55.9°F (1924) | -11.0°F (1932) | 0.68 in (2000) |
| December 16 | 51.1°F (1942) | -11.9°F (2008) | 0.65 in (2000) |
| December 17 | 51.1°F (1942) | -25.1°F (1924) | 0.71 in (1961) |
| December 18 | 50.0°F (1936) | -27.9°F (1924) | 2.30 in (2015) |
| December 19 | 53.1°F (2004) | -26.0°F (1924) | 2.00 in (2015) |
| December 20 | 48.9°F (2004) | -13.0°F (1990) | 0.43 in (1964) |
| December 21 | 52.0°F (1933) | -16.1°F (1983) | 0.82 in (1964) |
| December 22 | 53.1°F (1933) | -22.0°F (1924) | 1.37 in (1933) |
| December 23 | 52.0°F (1933) | -23.1°F (1924) | 0.99 in (1964) |
| December 24 | 55.0°F (1919) | -24.0°F (1924) | 0.50 in (1934) |
| December 25 | 51.1°F (1919) | -18.0°F (1924) | 0.72 in (2016) |
| December 26 | 51.1°F (1972) | -17.0°F (1948) | 0.61 in (1998) |
| December 27 | 50.0°F (1972) | -16.1°F (1916) | 1.00 in (1937) |
| December 28 | 51.1°F (1919) | -8.0°F (1983) | 0.76 in (1965) |
| December 29 | 55.0°F (1917) | -24.0°F (1990) | 0.76 in (1996) |
| December 30 | 55.0°F (1920) | -24.0°F (1968) | 0.45 in (1942) |
| December 31 | 54.0°F (1917) | -27.0°F (1927) | 0.40 in (1996) |