Weather on December 15 at Glacier
Glacier National Park
Based on 55 years of data from Kalispell, MT
Elevation Note: Glacier sits at 4,500 ft. Expect temperatures 16°F cooler than the data shown below, which comes from Kalispell, MT at a lower elevation.
Planning Your Visit
December 15th in Glacier National Park (via 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 Glacier? 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 by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 54°F | 36°F | -- | 0" |
| 2024 | 38°F | 29°F | 0.08" | 0.1" |
| 2023 | 36°F | 24°F | 0" | 0" |
| 2022 | 28°F | 20°F | 0" | 0" |
| 2021 | 31°F | 16°F | 0" | 0" |
| 2020 | 36°F | 31°F | 0.13" | 0.4" |
| 2019 | 37°F | 21°F | 0" | 0" |
| 2018 | 43°F | 20°F | 0" | 0" |
| 2017 | 30°F | 27°F | 0.36" | 2" |
| 2016 | 17°F | 6°F | 0.03" | 2.4" |
| 2015 | 33°F | 28°F | 0" | 0" |
| 2014 | 34°F | 15°F | 0" | 0" |
| 2013 | 41°F | 17°F | 0" | 0" |
| 2012 | 30°F | 21°F | 0" | 0.3" |
| 2011 | 33°F | 26°F | 0.28" | 2.5" |
| 2010 | 35°F | 22°F | 0" | 0" |
| 2009 | 23°F | 7°F | 0.33" | 2.1" |
| 2008 | 8°F | -12°F | 0" | 0" |
| 2007 | 38°F | 20°F | 0.15" | 1" |
| 2006 | 42°F | 29°F | 0.43" | 0" |
| 2005 | 20°F | 1°F | 0" | 0" |
| 2004 | 44°F | 30°F | 0" | 0" |
| 2003 | 36°F | 19°F | 0" | -- |
| 2002 | 45°F | 29°F | 0.03" | -- |
| 2001 | 33°F | 21°F | 0" | -- |
| 2000 | 32°F | 1°F | 0.13" | -- |
| 1999 | 40°F | 32°F | 1.37" | -- |
| 1998 | 37°F | 23°F | 0" | 0" |
| 1997 | 41°F | 21°F | 0.03" | 0" |
| 1996 | 32°F | 19°F | 0" | 0" |
| 1995 | 39°F | 27°F | 0" | 0" |
| 1994 | 33°F | 19°F | 0.08" | 0.4" |
| 1993 | 38°F | 16°F | 0" | 0" |
| 1992 | 30°F | 8°F | 0" | 0" |
| 1991 | 29°F | 18°F | 0" | 0" |
| 1990 | 30°F | 15°F | 0" | 0" |
| 1989 | 36°F | 22°F | 0.05" | 0.4" |
| 1988 | 28°F | 6°F | 0" | 0" |
| 1987 | 27°F | 4°F | 0.41" | 2.8" |
| 1986 | 32°F | 19°F | 0" | 0" |
| 1985 | 27°F | 12°F | 0.1" | 0.8" |
| 1984 | 38°F | 8°F | 0" | 0" |
| 1983 | 27°F | 12°F | 0" | 0" |
| 1982 | 36°F | 25°F | 0.25" | 0.4" |
| 1981 | 36°F | 18°F | 0.46" | -- |
| 1980 | 48°F | 32°F | 0" | 0" |
| 1979 | 44°F | 6°F | 0.25" | 1.4" |
| 1978 | 34°F | 26°F | 0.08" | -- |
| 1977 | 40°F | 30°F | 0.36" | -- |
| 1976 | 33°F | 23°F | 0" | -- |
| 1975 | 31°F | 19°F | 0.51" | -- |
| 1974 | 34°F | 20°F | 0" | -- |
| 1973 | 38°F | 30°F | 0.03" | -- |
| 1972 | 17°F | 2°F | 0" | -- |
| 1971 | 29°F | 18°F | 0" | -- |