December weather in Plentywood, MT
The average temperature in Plentywood in December is 13.2°F (2.7°F–23.7°F). Average precipitation: 0.47 inches.
December is a winter month in Plentywood, and is cooler than the annual average of 39.4°F. Daily temperatures swing about 21°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 8h 4m. For travel, December is cold.
Avg High
23.7°F
Avg Low
2.7°F
Precipitation
0.47 in
Daylight
8h 4m
December records in Plentywood
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 52.0°F (2002) | -22.0°F (2014) | 0.23 in (1981) |
| December 2 | 52.0°F (1988) | -27.9°F (1985) | 0.50 in (2018) |
| December 3 | 50.0°F (1989) | -16.1°F (2022) | 0.12 in (1977) |
| December 4 | 50.0°F (1995) | -20.0°F (2002) | 0.38 in (1998) |
| December 5 | 55.0°F (1988) | -20.9°F (1994) | 0.35 in (2021) |
| December 6 | 48.9°F (1988) | -23.1°F (2013) | 1.50 in (2004) |
| December 7 | 54.0°F (1987) | -29.9°F (2022) | 0.19 in (1977) |
| December 8 | 50.0°F (2015) | -29.0°F (2022) | 0.23 in (2008) |
| December 9 | 50.0°F (2015) | -23.1°F (1995) | 0.27 in (2019) |
| December 10 | 52.0°F (2015) | -26.0°F (2000) | 1.00 in (2010) |
| December 11 | 52.0°F (1987) | -26.0°F (2013) | 0.33 in (2016) |
| December 12 | 44.1°F (1997) | -24.0°F (2000) | 0.13 in (1968) |
| December 13 | 53.1°F (2017) | -23.1°F (1985) | 0.12 in (1988) |
| December 14 | 51.1°F (1997) | -24.0°F (2009) | 0.22 in (1951) |
| December 15 | 50.0°F (1997) | -33.0°F (2009) | 0.38 in (2015) |
| December 16 | 45.0°F (2017) | -27.9°F (2008) | 0.19 in (1999) |
| December 17 | 54.0°F (1997) | -29.0°F (2016) | 0.25 in (1970) |
| December 18 | 42.1°F (1997) | -31.0°F (2016) | 0.22 in (2002) |
| December 19 | 46.9°F (2004) | -35.0°F (1989) | 0.17 in (1948) |
| December 20 | 52.0°F (2004) | -26.0°F (2022) | 0.22 in (1949) |
| December 21 | 48.0°F (2020) | -35.0°F (1989) | 0.34 in (1961) |
| December 22 | 42.1°F (2005) | -36.0°F (1989) | 0.26 in (1967) |
| December 23 | 45.0°F (1986) | -32.1°F (1990) | 0.33 in (2015) |
| December 24 | 46.9°F (1999) | -27.9°F (2000) | 0.19 in (2012) |
| December 25 | 43.0°F (1991) | -36.0°F (1996) | 0.25 in (2016) |
| December 26 | 45.0°F (1986) | -34.1°F (1996) | 0.31 in (1988) |
| December 27 | 46.0°F (1999) | -33.0°F (2017) | 0.20 in (1967) |
| December 28 | 52.0°F (1999) | -26.0°F (2021) | 0.12 in (1947) |
| December 29 | 48.9°F (1999) | -31.0°F (1996) | 0.25 in (1984) |
| December 30 | 39.0°F (1999) | -29.9°F (1990) | 0.37 in (1965) |
| December 31 | 44.1°F (1997) | -34.1°F (2017) | 0.54 in (1975) |