Weather on September 23
Kalispell, MT
55 Years of Data
Avg High
68°F
Avg Low
36°F
Warmest
2011
65°F avg
Coldest
2000
35°F avg
About This Date
September 23rd in Kalispell, MT typically brings mild fall weather, with average highs around 68°F and lows near 36°F — a 32°F daily swing. Over 55 years of records, the warmest September 23rd was in 2011 (65°F average), while the coldest was 2000 (35°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 18% of September 23rd dates historically, with the wettest September 23rd recording 0.76" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for September 23rd in Kalispell, MT? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 33° | 52° | — | — |
| 2024 | 74° | 44° | 59° | — | — |
| 2023 | 67° | 39° | 53° | — | — |
| 2022 | 65° | 38° | 51° | — | — |
| 2021 | 71° | 38° | 54° | — | — |
| 2020 | 73° | 38° | 55° | — | — |
| 2019 | 66° | 54° | 60° | 0.15" | — |
| 2018 | 59° | 35° | 47° | 0.05" | — |
| 2017 | 52° | 37° | 44° | — | — |
| 2016 | 65° | 43° | 54° | 0.05" | — |
| 2015 | 75° | 31° | 53° | — | — |
| 2014 | 76° | 44° | 60° | 0.08" | — |
| 2013 | 60° | 43° | 51° | 0.15" | — |
| 2012 | 79° | 36° | 57° | — | — |
| 2011warmest | 87° | 42° | 65° | — | — |
| 2010 | 60° | 32° | 46° | — | — |
| 2009 | 81° | 35° | 58° | — | — |
| 2008 | 60° | 35° | 48° | 0.08" | — |
| 2007 | 55° | 34° | 44° | 0.28" | — |
| 2006 | 60° | 33° | 47° | — | — |
| 2005 | 55° | 31° | 43° | — | — |
| 2004 | 63° | 41° | 52° | — | — |
| 2003 | 73° | 43° | 58° | — | — |
| 2002 | 69° | 39° | 54° | — | — |
| 2001 | 82° | 36° | 59° | — | — |
| 2000coldest | 52° | 19° | 35° | — | — |
| 1999 | 86° | 30° | 58° | — | — |
| 1998 | 73° | 40° | 56° | — | — |
| 1997 | 75° | 36° | 55° | — | — |
| 1996 | 55° | 25° | 40° | — | — |
| 1995 | 69° | 31° | 50° | — | — |
| 1994 | 79° | 28° | 53° | — | — |
| 1993 | 62° | 28° | 45° | — | — |
| 1992 | 80° | 46° | 63° | 0.03" | — |
| 1991 | 66° | 33° | 50° | — | — |
| 1990 | 80° | 36° | 58° | — | — |
| 1989 | 72° | 36° | 54° | — | — |
| 1988 | 65° | 32° | 48° | — | — |
| 1987 | 84° | 37° | 61° | — | — |
| 1986 | 63° | 31° | 47° | — | — |
| 1985 | 50° | 32° | 41° | — | — |
| 1984 | 44° | 31° | 37° | — | — |
| 1983 | 72° | 29° | 50° | — | — |
| 1982 | 72° | 34° | 53° | — | — |
| 1981 | 59° | 32° | 46° | — | — |
| 1980 | 61° | 41° | 51° | — | — |
| 1979 | 75° | 33° | 54° | — | — |
| 1978 | 69° | 49° | 59° | — | — |
| 1977 | 60° | 34° | 47° | — | — |
| 1976 | 71° | 46° | 59° | — | — |
| 1975 | 73° | 40° | 56° | — | — |
| 1974 | 79° | 40° | 59° | — | — |
| 1973 | 62° | 48° | 55° | 0.76" | — |
| 1972 | 51° | 32° | 42° | 0.28" | — |
| 1971 | 72° | 34° | 53° | — | — |
55 years of data from KALISPELL