Kalispell climate — normals and trends
Kalispell (United States) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 5.3 °C and it receives 770 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (18.0 °C on average) and the coldest is January (-6.3 °C). Rainfall peaks in June.
Kalispell averages 173 frost days, 10 hot days (≥ 30 °C) and 146 rainy days per year.
Kalispell has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 190 to 156 per year over the period.
The hottest day of the period reached 37.0 °C (on 10 August 2018) and the coldest -34.1 °C (on 12 February 2021).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
KalispellMontana
- coords
- 48.20°, -114.31°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.3°C
Average daily high
10.5°C
Average daily low
0.1°C
Annual rainfall
770mm
Sunshine / day
9.3h
Mean relative humidity
71%
Average peak wind
9.6km/h
Seasonal range
24.3°C
Frost days (< 0 °C)
173 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
146 d/yr
Annual snowfall
221.5 cm
Average feels-like high
8.1 °C
Average feels-like low
-2.7 °C
Average peak gust
33.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.45 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
37.0 °C
10 August 2018
Coldest day
-34.1 °C
12 February 2021
Wettest day
52 mm
6 June 1995
Windiest day
29.6 km/h
13 January 2021
Strongest gust
113.4 km/h
16 October 1991
Hottest feels-like
37.1 °C
4 August 1961
Coldest feels-like
-39.4 °C
12 February 2021
Snowiest day
26.2 cm
18 November 1946
Sunniest day
15.5 h
29 June 1957
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -2.4 °C | +0.4 °C | 34 mm | -42 mm |
| Feb | -3.9 °C | -3.8 °C | 79 mm | +19 mm |
| Mar | 7.3 °C | +3.4 °C | 106 mm | +40 mm |
| Apr | 11.9 °C | +2.6 °C | 71 mm | +6 mm |
| May | 18.8 °C | +3.5 °C | 52 mm | -29 mm |
| Jun | 22.5 °C | +2.9 °C | 42 mm | -41 mm |
| Jul | 26.1 °C | +0.8 °C | 62 mm | +30 mm |
| Aug | 26.2 °C | +1.4 °C | 34 mm | -3 mm |
| Sep | 24.6 °C | +5.8 °C | 14 mm | -38 mm |
| Oct | 11.2 °C | +0.2 °C | 76 mm | +13 mm |
| Nov | 6.0 °C | +3.4 °C | 96 mm | +16 mm |
| Dec | 3.3 °C | +5.0 °C | 169 mm | +93 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Kalispell?
Kalispell has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 5.3 °C and it receives 770 mm of precipitation per year.
What is the hottest day ever recorded in Kalispell?
The hottest day measured in Kalispell between 1940 and 2025 was 10 August 2018, reaching 37.0 °C.
What is the coldest day in Kalispell?
The coldest day measured in Kalispell between 1940 and 2025 was 12 February 2021, at -34.1 °C.
Does it snow in Kalispell?
Yes. Kalispell gets on average 221.5 cm of snow per year and has around 173 frost days.
Has the climate of Kalispell warmed?
Yes: Kalispell warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kalispell?
The wettest day measured in Kalispell between 1940 and 2025 was 6 June 1995, with 52 mm of rain in 24 hours.
What was the windiest day in Kalispell?
The windiest day measured in Kalispell between 1940 and 2025 was 13 January 2021, with winds reaching 29.6 km/h.
What is the warmest month in Kalispell?
The warmest month in Kalispell is July (18.0 °C on average); the coldest is January (-6.3 °C).
How much does it rain in Kalispell?
Kalispell receives on average 770 mm of precipitation per year, spread over about 146 rainy days.
Is it sunny in Kalispell?
Kalispell gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kalispell?
The heaviest 24-hour snowfall measured in Kalispell between 1940 and 2025 was 18 November 1946, with 26.2 cm.
Are there tropical nights in Kalispell?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Kalispell.
What was the most extreme apparent temperature in Kalispell?
In Kalispell, between 1940 and 2025, the highest apparent temperature reached 37.1 °C on 4 August 1961, and the lowest was -39.4 °C on 12 February 2021.
Compare Kalispell with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kalispell