December weather in Hardin, MT
The average temperature in Hardin in December is 25.5°F (12.9°F–38.0°F). Average precipitation: 0.49 inches. Average snowfall is 6.3 inches.
December is a winter month in Hardin, and is cooler than the annual average of 47.7°F. Daily temperatures swing about 25.1°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 8h 30m. For travel, December is cold.
Avg High
38.0°F
Avg Low
12.9°F
Precipitation
0.49 in
Snow
6.3 in
December records in Hardin
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 69.1°F (1995) | -24.0°F (1985) | 0.23 in (1966) |
| December 2 | 72.0°F (2021) | -29.9°F (1985) | 0.63 in (2013) |
| December 3 | 64.0°F (2012) | -9.9°F (1985) | 0.45 in (2013) |
| December 4 | 64.0°F (2012) | -9.9°F (1984) | 0.20 in (2002) |
| December 5 | 64.9°F (1963) | -23.1°F (1950) | 0.21 in (2022) |
| December 6 | 62.1°F (1987) | -26.0°F (2013) | 0.20 in (1978) |
| December 7 | 61.0°F (1990) | -31.0°F (2013) | 0.35 in (1950) |
| December 8 | 66.9°F (2020) | -27.0°F (1972) | 0.33 in (1958) |
| December 9 | 66.9°F (2020) | -26.0°F (2009) | 0.29 in (2024) |
| December 10 | 69.1°F (1957) | -18.9°F (1977) | 0.28 in (2016) |
| December 11 | 66.9°F (2004) | -20.0°F (1985) | 0.10 in (1958) |
| December 12 | 64.9°F (2017) | -24.0°F (1949) | 0.54 in (2025) |
| December 13 | 62.1°F (1998) | -25.1°F (1963) | 0.35 in (2019) |
| December 14 | 57.9°F (1960) | -24.0°F (1963) | 0.38 in (1989) |
| December 15 | 59.0°F (2006) | -22.0°F (2008) | 0.30 in (2016) |
| December 16 | 60.1°F (1962) | -27.0°F (1964) | 0.37 in (2016) |
| December 17 | 64.9°F (1998) | -34.1°F (1964) | 0.30 in (2024) |
| December 18 | 61.0°F (2025) | -34.1°F (1983) | 0.58 in (1973) |
| December 19 | 63.0°F (2004) | -20.0°F (1989) | 0.13 in (2013) |
| December 20 | 61.0°F (2025) | -35.0°F (1990) | 0.35 in (1989) |
| December 21 | 60.1°F (2023) | -31.0°F (1990) | 0.16 in (1996) |
| December 22 | 60.1°F (1954) | -47.0°F (1989) | 0.24 in (1966) |
| December 23 | 59.0°F (1954) | -36.0°F (2022) | 1.08 in (2017) |
| December 24 | 54.0°F (1986) | -43.1°F (1983) | 0.30 in (1980) |
| December 25 | 57.9°F (2025) | -42.0°F (1983) | 0.27 in (2018) |
| December 26 | 60.1°F (2025) | -33.0°F (1996) | 0.19 in (1965) |
| December 27 | 66.9°F (1980) | -33.0°F (1983) | 0.15 in (1993) |
| December 28 | 62.1°F (1999) | -36.9°F (1983) | 0.35 in (2006) |
| December 29 | 61.0°F (1999) | -35.0°F (1990) | 0.25 in (2005) |
| December 30 | 64.9°F (1956) | -32.1°F (1978) | 0.35 in (1972) |
| December 31 | 61.0°F (1962) | -27.9°F (1967) | 0.50 in (2021) |