Weather on December 20
Kalispell, MT
55 Years of Data
About This Date
December 20th in Kalispell, MT typically brings very cold winter weather, with average highs around 30°F and lows near 17°F. Over 55 years of records, the warmest December 20th was in 2019 (43°F average), while the coldest was 2008 (-9°F) — a 52°F range across recorded history. Precipitation has occurred on 49% of recorded December 20th dates, with snow falling 27% of the time (heaviest snowfall: 8.9"). The last decade has been 9.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 9.8°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Kalispell, MT? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 38° | 28° | 33° | — | — |
| 2024 | 46° | 28° | 37° | — | — |
| 2023 | 38° | 31° | 35° | 0.05" | — |
| 2022 | 5° | -3° | 1° | 1.22" | 8.9" |
| 2021 | 23° | 4° | 14° | 0.36" | 1.3" |
| 2020 | 48° | 28° | 38° | 0.33" | — |
| 2019warmest | 51° | 36° | 43° | 0.03" | — |
| 2018 | 42° | 29° | 36° | 0.18" | — |
| 2017 | 29° | -1° | 14° | 0.2" | 3" |
| 2016 | 41° | 26° | 34° | 0.23" | 0.2" |
| 2015 | 34° | 22° | 28° | — | — |
| 2014 | 36° | 25° | 31° | 0.1" | — |
| 2013 | 22° | 12° | 17° | 0.53" | 5.4" |
| 2012 | 38° | 28° | 33° | — | — |
| 2011 | 34° | 22° | 28° | — | — |
| 2010 | 24° | 13° | 18° | 0.1" | — |
| 2009 | 36° | 33° | 34° | 1.22" | — |
| 2008coldest | 4° | -22° | -9° | — | — |
| 2007 | 41° | 31° | 36° | — | — |
| 2006 | 22° | 4° | 13° | — | — |
| 2005 | 23° | 13° | 18° | 0.03" | — |
| 2004 | 39° | 23° | 31° | — | — |
| 2003 | 25° | 19° | 22° | 0.05" | — |
| 2002 | 30° | 20° | 25° | — | — |
| 2001 | 28° | 13° | 20° | — | — |
| 2000 | 18° | -13° | 2° | — | — |
| 1999 | 30° | 25° | 27° | — | — |
| 1998 | 4° | -12° | -4° | — | — |
| 1997 | 32° | 18° | 25° | 0.15" | 0.8" |
| 1996 | 27° | 15° | 21° | 0.53" | 2.5" |
| 1995 | 32° | 28° | 30° | — | — |
| 1994 | 49° | 23° | 36° | — | — |
| 1993 | 32° | 24° | 28° | — | 0.1" |
| 1992 | 33° | 20° | 26° | 0.43" | 3.2" |
| 1991 | 34° | 11° | 22° | — | — |
| 1990 | -2° | -11° | -6° | — | — |
| 1989 | 25° | 6° | 15° | 0.3" | 1.2" |
| 1988 | 26° | 1° | 14° | 0.13" | 0.6" |
| 1987 | 26° | -1° | 13° | 0.05" | 0.4" |
| 1986 | 28° | 22° | 25° | — | — |
| 1985 | 30° | 27° | 28° | — | — |
| 1984 | 20° | 11° | 15° | 0.33" | 1.5" |
| 1983 | 3° | -4° | 0° | — | — |
| 1982 | 29° | 21° | 25° | 0.79" | 3.3" |
| 1981 | 43° | 22° | 32° | — | — |
| 1980 | 25° | 20° | 22° | 0.81" | 3.2" |
| 1979 | 44° | 32° | 38° | — | — |
| 1978 | 32° | 20° | 26° | — | — |
| 1977 | 26° | 14° | 20° | — | — |
| 1976 | 30° | 15° | 23° | — | — |
| 1975 | 26° | 22° | 24° | 0.05" | — |
| 1974 | 40° | 31° | 35° | 0.13" | — |
| 1973 | 33° | 23° | 28° | 0.08" | — |
| 1972 | 43° | 34° | 38° | — | — |
| 1971 | 31° | 22° | 26° | 0.13" | — |