Weather on September 12
Kalispell, MT
55 Years of Data
Avg High
71°F
Avg Low
40°F
Warmest
2011
69°F avg
Coldest
2014
42°F avg
About This Date
September 12th in Kalispell, MT typically brings pleasant fall weather, with average highs around 71°F and lows near 40°F — a 31°F daily swing. Over 55 years of records, the warmest September 12th was in 2011 (69°F average), while the coldest was 2014 (42°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 12th dates historically, with the wettest September 12th recording 2.9" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 12th in Kalispell, MT? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 48° | 63° | 0.56" | — |
| 2024 | 59° | 54° | 56° | 1.52" | — |
| 2023 | 78° | 52° | 65° | — | — |
| 2022 | 80° | 39° | 60° | — | — |
| 2021 | 67° | 42° | 54° | — | — |
| 2020 | 84° | 37° | 61° | — | — |
| 2019 | 71° | 40° | 55° | — | — |
| 2018 | 62° | 35° | 49° | 0.13" | — |
| 2017 | 84° | 36° | 60° | — | — |
| 2016 | 59° | 32° | 46° | — | — |
| 2015 | 84° | 42° | 63° | — | — |
| 2014coldest | 61° | 23° | 42° | — | — |
| 2013 | 90° | 48° | 69° | — | — |
| 2012 | 64° | 24° | 44° | — | — |
| 2011warmest | 84° | 53° | 69° | — | — |
| 2010 | 71° | 33° | 52° | — | — |
| 2009 | 83° | 40° | 61° | — | — |
| 2008 | 78° | 34° | 56° | — | — |
| 2007 | 71° | 39° | 55° | — | — |
| 2006 | 82° | 36° | 59° | — | — |
| 2005 | 50° | 42° | 46° | 0.69" | — |
| 2004 | 59° | 50° | 55° | 0.03" | — |
| 2003 | 63° | 44° | 53° | 0.08" | — |
| 2002 | 81° | 41° | 61° | — | — |
| 2001 | 79° | 51° | 65° | — | — |
| 2000 | 76° | 34° | 55° | — | — |
| 1999 | 70° | 29° | 49° | — | — |
| 1998 | 81° | 37° | 59° | — | — |
| 1997 | 66° | 44° | 55° | 0.03" | — |
| 1996 | 81° | 47° | 64° | — | — |
| 1995 | 80° | 39° | 60° | — | — |
| 1994 | 70° | 30° | 50° | — | — |
| 1993 | 57° | 33° | 45° | 1.7" | — |
| 1992 | 63° | 42° | 52° | 0.3" | — |
| 1991 | 77° | 36° | 56° | — | — |
| 1990 | 81° | 42° | 61° | — | — |
| 1989 | 65° | 31° | 48° | — | — |
| 1988 | 68° | 29° | 48° | — | — |
| 1987 | 83° | 40° | 61° | — | — |
| 1986 | 56° | 34° | 45° | — | — |
| 1985 | 55° | 44° | 50° | 2.9" | — |
| 1984 | 57° | 38° | 47° | 0.13" | — |
| 1983 | 68° | 35° | 52° | — | — |
| 1982 | 59° | 38° | 48° | 0.1" | — |
| 1981 | 85° | 45° | 65° | — | — |
| 1980 | 76° | 48° | 62° | — | — |
| 1979 | 70° | 43° | 56° | — | — |
| 1978 | 58° | 45° | 51° | 1.14" | — |
| 1977 | 72° | 38° | 55° | — | — |
| 1976 | 63° | 50° | 56° | 0.1" | — |
| 1975 | 74° | 37° | 55° | — | — |
| 1974 | 60° | 30° | 45° | — | — |
| 1973 | 82° | 52° | 67° | — | — |
| 1972 | 68° | 46° | 57° | 0.43" | — |
| 1971 | 78° | 37° | 58° | — | — |
55 years of data from KALISPELL