Weather on September 30
Kalispell, MT
55 Years of Data
Avg High
66°F
Avg Low
36°F
Warmest
1976
63°F avg
Coldest
2019
35°F avg
About This Date
September 30th in Kalispell, MT typically brings mild fall weather, with average highs around 66°F and lows near 36°F — a 30°F daily swing. Over 55 years of records, the warmest September 30th was in 1976 (63°F average), while the coldest was 2019 (35°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 30th dates historically, with the wettest September 30th recording 1.09" of rain. The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
Planning for September 30th in Kalispell, MT? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 44° | 53° | 1.09" | — |
| 2024 | 63° | 27° | 45° | — | — |
| 2023 | 50° | 44° | 47° | 0.25" | — |
| 2022 | 65° | 39° | 52° | — | — |
| 2021 | 67° | 28° | 48° | — | — |
| 2020 | 74° | 38° | 56° | — | — |
| 2019coldest | 46° | 24° | 35° | — | — |
| 2018 | 51° | 31° | 41° | — | — |
| 2017 | 67° | 38° | 52° | 0.13" | — |
| 2016 | 79° | 41° | 60° | 0.05" | — |
| 2015 | 77° | 27° | 52° | — | — |
| 2014 | 57° | 44° | 51° | 0.91" | — |
| 2013 | 54° | 40° | 47° | 0.46" | — |
| 2012 | 75° | 39° | 57° | — | — |
| 2011 | 74° | 30° | 52° | — | — |
| 2010 | 76° | 39° | 57° | — | — |
| 2009 | 54° | 36° | 45° | 0.1" | — |
| 2008 | 75° | 35° | 55° | — | — |
| 2007 | 59° | 29° | 44° | 0.1" | — |
| 2006 | 80° | 33° | 57° | — | — |
| 2005 | 68° | 51° | 60° | 1.02" | — |
| 2004 | 64° | 44° | 54° | — | — |
| 2003 | 67° | 34° | 50° | — | — |
| 2002 | 53° | 39° | 46° | 0.1" | — |
| 2001 | 72° | 29° | 50° | — | — |
| 2000 | 61° | 46° | 53° | 0.51" | — |
| 1999 | 62° | 25° | 43° | — | — |
| 1998 | 70° | 40° | 55° | — | — |
| 1997 | 74° | 37° | 55° | — | — |
| 1996 | 76° | 35° | 55° | — | — |
| 1995 | 51° | 39° | 45° | 0.33" | — |
| 1994 | 72° | 34° | 53° | — | — |
| 1993 | 71° | 39° | 55° | — | — |
| 1992 | 80° | 37° | 59° | — | — |
| 1991 | 76° | 38° | 57° | — | — |
| 1990 | 76° | 34° | 55° | — | — |
| 1989 | 58° | 44° | 51° | 0.53" | — |
| 1988 | 74° | 35° | 54° | — | — |
| 1987 | 73° | 32° | 53° | — | — |
| 1986 | 52° | 44° | 48° | 0.13" | — |
| 1985 | 58° | 22° | 40° | — | — |
| 1984 | 63° | 25° | 44° | — | — |
| 1983 | 55° | 37° | 46° | — | — |
| 1982 | 59° | 28° | 44° | — | — |
| 1981 | 57° | 35° | 46° | — | — |
| 1980 | 72° | 37° | 54° | — | — |
| 1979 | 72° | 33° | 52° | — | — |
| 1978 | 63° | 35° | 49° | — | — |
| 1977 | 50° | 37° | 44° | 0.05" | — |
| 1976warmest | 84° | 41° | 63° | — | — |
| 1975 | 67° | 34° | 50° | — | — |
| 1974 | 65° | 32° | 48° | — | — |
| 1973 | 70° | 45° | 57° | — | — |
| 1972 | 72° | 28° | 50° | — | — |
| 1971 | 55° | 29° | 42° | — | — |
55 years of data from KALISPELL