Weather on March 21
Kalispell, MT
55 Years of Data
Avg High
48°F
Avg Low
27°F
Warmest
1999
50°F avg
Coldest
2002
11°F avg
About This Date
March 21st in Kalispell, MT typically brings chilly spring weather, with average highs around 48°F and lows near 27°F. Over 56 years of records, the warmest March 21st was in 1999 (50°F average), while the coldest was 2002 (11°F) — a 39°F range across recorded history. Precipitation has occurred on 27% of recorded March 21st dates, with snow falling 4% of the time (heaviest snowfall: 2.9"). The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Kalispell, MT? Bring layers as temperatures can vary throughout the day.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 53° | 38° | 45° | 0.03" | — |
| 2025 | 52° | 33° | 42° | 0.33" | — |
| 2024 | 53° | 32° | 43° | — | — |
| 2023 | 49° | 21° | 35° | — | — |
| 2022 | 43° | 33° | 38° | — | — |
| 2021 | 43° | 32° | 37° | — | — |
| 2020 | 58° | 18° | 38° | — | — |
| 2019 | 52° | 19° | 36° | — | — |
| 2018 | 49° | 24° | 37° | — | — |
| 2017 | 52° | 36° | 44° | 0.28" | — |
| 2016 | 57° | 29° | 43° | 0.2" | — |
| 2015 | 57° | 35° | 46° | — | — |
| 2014 | 36° | 21° | 29° | — | — |
| 2013 | 39° | 27° | 33° | — | — |
| 2012 | 37° | 31° | 34° | 0.76" | 0.3" |
| 2011 | 41° | 34° | 37° | 0.08" | — |
| 2010 | 50° | 25° | 37° | — | — |
| 2009 | 55° | 33° | 44° | 0.1" | — |
| 2008 | 40° | 26° | 33° | 0.1" | — |
| 2007 | 44° | 26° | 35° | — | — |
| 2006 | 51° | 29° | 40° | — | — |
| 2005 | 42° | 24° | 33° | — | — |
| 2004 | 56° | 28° | 42° | — | — |
| 2003 | 47° | 34° | 40° | — | — |
| 2002coldest | 22° | 1° | 11° | — | — |
| 2001 | 55° | 19° | 37° | — | — |
| 2000 | 48° | 23° | 36° | — | — |
| 1999warmest | 68° | 32° | 50° | — | — |
| 1998 | 44° | 28° | 36° | 0.15" | — |
| 1997 | 44° | 21° | 33° | — | — |
| 1996 | 52° | 23° | 37° | — | — |
| 1995 | 44° | 27° | 35° | 0.05" | — |
| 1994 | 45° | 25° | 35° | — | — |
| 1993 | 48° | 33° | 41° | — | — |
| 1992 | 51° | 24° | 38° | — | — |
| 1991 | 50° | 28° | 39° | 0.03" | — |
| 1990 | 52° | 31° | 41° | 0.05" | — |
| 1989 | 43° | 31° | 37° | 0.05" | — |
| 1988 | 50° | 35° | 43° | — | — |
| 1987 | 45° | 25° | 35° | — | — |
| 1986 | 54° | 27° | 40° | — | — |
| 1985 | 35° | 19° | 27° | 0.51" | 2.9" |
| 1984 | 42° | 35° | 39° | 0.66" | — |
| 1983 | 51° | 23° | 37° | — | — |
| 1982 | 43° | 30° | 36° | — | — |
| 1981 | 52° | 21° | 36° | — | — |
| 1980 | 53° | 27° | 40° | — | — |
| 1979 | 58° | 25° | 41° | — | — |
| 1978 | 58° | 30° | 44° | — | — |
| 1977 | 44° | 34° | 39° | — | — |
| 1976 | 42° | 27° | 34° | — | — |
| 1975 | 40° | 17° | 28° | — | — |
| 1974 | 43° | 30° | 36° | — | — |
| 1973 | 54° | 30° | 42° | — | — |
| 1972 | 58° | 27° | 42° | — | — |
| 1971 | 46° | 20° | 33° | — | — |
56 years of data from KALISPELL