Weather on December 15
Kalispell, MT
55 Years of Data
About This Date
December 15th in Kalispell, MT typically brings cold winter weather, with average highs around 34°F and lows near 19°F. Over 55 years of records, the warmest December 15th was in 2025 (45°F average), while the coldest was 2008 (-2°F) — a 47°F range across recorded history. Precipitation has occurred on 42% of recorded December 15th dates, with snow falling 25% of the time (heaviest snowfall: 2.8"). The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for December 15th 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 |
|---|---|---|---|---|---|
| 2025warmest | 54° | 36° | 45° | — | — |
| 2024 | 38° | 29° | 34° | 0.08" | 0.1" |
| 2023 | 36° | 24° | 30° | — | — |
| 2022 | 28° | 20° | 24° | — | — |
| 2021 | 31° | 16° | 24° | — | — |
| 2020 | 36° | 31° | 34° | 0.13" | 0.4" |
| 2019 | 37° | 21° | 29° | — | — |
| 2018 | 43° | 20° | 32° | — | — |
| 2017 | 30° | 27° | 29° | 0.36" | 2" |
| 2016 | 17° | 6° | 12° | 0.03" | 2.4" |
| 2015 | 33° | 28° | 31° | — | — |
| 2014 | 34° | 15° | 25° | — | — |
| 2013 | 41° | 17° | 29° | — | — |
| 2012 | 30° | 21° | 26° | — | 0.3" |
| 2011 | 33° | 26° | 30° | 0.28" | 2.5" |
| 2010 | 35° | 22° | 28° | — | — |
| 2009 | 23° | 7° | 15° | 0.33" | 2.1" |
| 2008coldest | 8° | -12° | -2° | — | — |
| 2007 | 38° | 20° | 29° | 0.15" | 1" |
| 2006 | 42° | 29° | 35° | 0.43" | — |
| 2005 | 20° | 1° | 10° | — | — |
| 2004 | 44° | 30° | 37° | — | — |
| 2003 | 36° | 19° | 27° | — | — |
| 2002 | 45° | 29° | 37° | 0.03" | — |
| 2001 | 33° | 21° | 27° | — | — |
| 2000 | 32° | 1° | 17° | 0.13" | — |
| 1999 | 40° | 32° | 36° | 1.37" | — |
| 1998 | 37° | 23° | 30° | — | — |
| 1997 | 41° | 21° | 31° | 0.03" | — |
| 1996 | 32° | 19° | 26° | — | — |
| 1995 | 39° | 27° | 33° | — | — |
| 1994 | 33° | 19° | 26° | 0.08" | 0.4" |
| 1993 | 38° | 16° | 27° | — | — |
| 1992 | 30° | 8° | 19° | — | — |
| 1991 | 29° | 18° | 23° | — | — |
| 1990 | 30° | 15° | 23° | — | — |
| 1989 | 36° | 22° | 29° | 0.05" | 0.4" |
| 1988 | 28° | 6° | 17° | — | — |
| 1987 | 27° | 4° | 15° | 0.41" | 2.8" |
| 1986 | 32° | 19° | 26° | — | — |
| 1985 | 27° | 12° | 19° | 0.1" | 0.8" |
| 1984 | 38° | 8° | 23° | — | — |
| 1983 | 27° | 12° | 19° | — | — |
| 1982 | 36° | 25° | 30° | 0.25" | 0.4" |
| 1981 | 36° | 18° | 27° | 0.46" | — |
| 1980 | 48° | 32° | 40° | — | — |
| 1979 | 44° | 6° | 25° | 0.25" | 1.4" |
| 1978 | 34° | 26° | 30° | 0.08" | — |
| 1977 | 40° | 30° | 35° | 0.36" | — |
| 1976 | 33° | 23° | 28° | — | — |
| 1975 | 31° | 19° | 25° | 0.51" | — |
| 1974 | 34° | 20° | 27° | — | — |
| 1973 | 38° | 30° | 34° | 0.03" | — |
| 1972 | 17° | 2° | 9° | — | — |
| 1971 | 29° | 18° | 23° | — | — |