April is one of the cooler months of the year in Kalispell, with average highs near 9.3°C and lows around -1.4°C (mean 4°C). It is about average for rainfall, averaging 58 mm of rainfall and 76% relative humidity across the period.
April is one of the cooler months of the year in Kalispell. Across 45 years of records, the warmest April in Kalispell was 2016 — when the month averaged 7.8°C — while the coldest was 2008 at -0.3°C. Typical April days reach 9.3°C with nights near -1.4°C. The long-term April temperature trend is broadly flat.
April is about average for rainfall in Kalispell, averaging 58 mm of rainfall. The wettest April on record was 2011 with 113 mm, while the driest were 1999 and 2015 at 27 mm.
Relative humidity in Kalispell during April averages 76%. The most humid April was 1997 at 84%, and the least humid were 1988 and 2004 at 71%.
April receives about 4.5 kWh/m²/day of solar energy in Kalispell. The sunniest April was 2015 at 5.2 kWh/m²/day, and the cloudiest was 2017 at 3.8.
Average wind speed in Kalispell during April is 0.8 m/s. The windiest Aprils were 1985 and 2022 at 0.9 m/s, while the calmest were 2019, 2023 and 2025, among others at 0.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 4.3°C | 4.1°C | 3.6°C | 3.9°C | 3.8°C | -0.5°C |
| Avg High | 9.9°C | 9.4°C | 9.0°C | 9.0°C | 9.3°C | -0.6°C |
| Avg Low | -1.2°C | -1.2°C | -1.8°C | -1.2°C | -1.8°C | -0.6°C |
| Avg Rain | 52 mm | 58 mm | 55 mm | 76 mm | 45 mm | -7 mm |
April temperatures in Kalispell have risen by about 0.4°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -13.9°C (1997) to a record high of 26.1°C (1987).
Rainfall in April is about average for rainfall, averaging 58 mm, with a wettest year of 113 mm.
A good time to visit Kalispell
April is a good time to visit Kalispell, with days averaging 9.3°C and nights around -1.4°C (mean 4°C, close to Kalispell's yearly average) and moderate rainfall. August and July are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 10.9°C | 5.1°C | -0.8°C | 16.9°C | -4.9°C | 48 mm | 74% | 0.7 m/s | 4.8 |
| 2024 | 10.5°C | 5.0°C | -0.6°C | 20.9°C | -5.7°C | 59 mm | 74% | 0.8 m/s | 4.5 |
| 2023 | 9.5°C | 4.1°C | -1.2°C | 25.3°C | -6.8°C | 31 mm | 71% | 0.7 m/s | 4.3 |
| 2022 | 5.6°C | 0.9°C | -3.8°C | 14.2°C | -12.2°C | 40 mm | 74% | 0.9 m/s | 4.2 |
| 2021 | 10.3°C | 4.2°C | -1.9°C | 20.0°C | -6.3°C | 34 mm | 71% | 0.8 m/s | 4.9 |
| 2020 | 8.7°C | 3.2°C | -2.4°C | 18.8°C | -9.5°C | 56 mm | 75% | 0.8 m/s | 4.8 |
| 2019 | 9.2°C | 4.3°C | -0.5°C | 17.1°C | -5.3°C | 74 mm | 77% | 0.7 m/s | 3.9 |
| 2018 | 7.6°C | 2.8°C | -2.1°C | 21.9°C | -11.0°C | 83 mm | 81% | 0.7 m/s | 4.1 |
| 2017 | 8.6°C | 3.8°C | -1.0°C | 14.2°C | -3.9°C | 89 mm | 80% | 0.8 m/s | 3.8 |
| 2016 🔥 | 14.0°C | 7.8°C | 1.6°C | 24.3°C | -2.0°C | 61 mm | 73% | 0.7 m/s | 4.9 |
| 2015 | 10.5°C | 4.7°C | -1.1°C | 20.7°C | -4.1°C | 27 mm | 71% | 0.7 m/s | 5.2 |
| 2014 | 8.6°C | 3.4°C | -1.9°C | 17.4°C | -6.3°C | 67 mm | 78% | 0.8 m/s | 4.5 |
| 2013 | 7.1°C | 2.1°C | -2.9°C | 16.8°C | -9.0°C | 80 mm | 79% | 0.8 m/s | 4.2 |
| 2012 | 11.0°C | 5.6°C | 0.2°C | 24.1°C | -4.4°C | 80 mm | 77% | 0.7 m/s | 4.2 |
| 2011 🌧️ | 4.8°C | 0.9°C | -3.1°C | 12.8°C | -6.4°C | 113 mm | 83% | 0.7 m/s | 4.1 |
| 2010 | 8.3°C | 3.4°C | -1.4°C | 19.8°C | -5.6°C | 88 mm | 77% | 0.8 m/s | 4.1 |
| 2009 | 6.5°C | 1.7°C | -3.1°C | 18.9°C | -9.8°C | 45 mm | 79% | 0.7 m/s | 5 |
| 2008 ❄️ | 4.5°C | -0.3°C | -5.1°C | 16.9°C | -11.4°C | 41 mm | 83% | 0.7 m/s | 4.5 |
| 2007 | 9.6°C | 4.4°C | -0.9°C | 16.5°C | -4.9°C | 43 mm | 75% | 0.7 m/s | 4.3 |
| 2006 | 10.4°C | 5.2°C | 0.0°C | 19.0°C | -4.6°C | 71 mm | 76% | 0.7 m/s | 4.4 |
| 2005 | 10.2°C | 4.1°C | -1.9°C | 18.7°C | -5.8°C | 56 mm | 72% | 0.8 m/s | 4.6 |
| 2004 | 12.6°C | 6.4°C | 0.3°C | 19.4°C | -4.5°C | 62 mm | 71% | 0.7 m/s | 5.1 |
| 2003 | 10.1°C | 4.8°C | -0.6°C | 18.7°C | -4.7°C | 49 mm | 76% | 0.7 m/s | 4.2 |
| 2002 | 7.9°C | 2.5°C | -2.9°C | 14.6°C | -13.7°C | 49 mm | 76% | 0.8 m/s | 4.6 |
| 2001 | 7.9°C | 3.0°C | -1.8°C | 21.9°C | -9.2°C | 74 mm | 76% | 0.8 m/s | 4 |
| 2000 | 10.3°C | 4.4°C | -1.6°C | 19.0°C | -4.9°C | 57 mm | 78% | 0.7 m/s | 4.6 |
| 1999 | 8.9°C | 3.2°C | -2.6°C | 18.3°C | -12.3°C | 27 mm | 73% | 0.7 m/s | 4.8 |
| 1998 | 10.9°C | 5.5°C | 0.1°C | 20.7°C | -3.7°C | 52 mm | 72% | 0.7 m/s | 4.8 |
| 1997 | 4.6°C | 0.0°C | -4.6°C | 13.3°C | -13.9°C | 64 mm | 84% | 0.7 m/s | 4.5 |
| 1996 | 9.5°C | 4.5°C | -0.4°C | 18.9°C | -4.0°C | 97 mm | 79% | 0.8 m/s | 4.4 |
| 1995 | 8.4°C | 3.2°C | -2.1°C | 13.0°C | -5.7°C | 56 mm | 75% | 0.7 m/s | 4.5 |
| 1994 | 11.3°C | 5.7°C | 0.1°C | 20.6°C | -4.8°C | 68 mm | 74% | 0.7 m/s | 4.4 |
| 1993 | 9.0°C | 4.1°C | -0.8°C | 15.3°C | -4.5°C | 77 mm | 79% | 0.7 m/s | 4.3 |
| 1992 | 11.6°C | 6.0°C | 0.5°C | 23.2°C | -5.1°C | 53 mm | 72% | 0.8 m/s | 4.4 |
| 1991 | 8.5°C | 3.3°C | -1.8°C | 17.6°C | -4.9°C | 42 mm | 77% | 0.8 m/s | 4.7 |
| 1990 | 11.3°C | 5.3°C | -0.7°C | 18.2°C | -6.4°C | 46 mm | 77% | 0.7 m/s | 4.6 |
| 1989 | 10.3°C | 4.5°C | -1.4°C | 20.1°C | -5.8°C | 52 mm | 75% | 0.8 m/s | 4.8 |
| 1988 | 12.2°C | 6.0°C | -0.1°C | 22.6°C | -4.4°C | 49 mm | 71% | 0.8 m/s | 4.5 |
| 1987 | 13.6°C | 7.4°C | 1.2°C | 26.1°C | -4.4°C | 49 mm | 72% | 0.8 m/s | 4.8 |
| 1986 | 9.2°C | 3.6°C | -1.9°C | 18.1°C | -7.6°C | 38 mm | 73% | 0.8 m/s | 4.9 |
| 1985 | 10.2°C | 4.8°C | -0.6°C | 19.4°C | -5.0°C | 40 mm | 76% | 0.9 m/s | 4.5 |
| 1984 | 8.9°C | 3.5°C | -1.9°C | 23.1°C | -5.5°C | 65 mm | 74% | 0.7 m/s | 4.5 |
| 1983 | 9.3°C | 3.9°C | -1.5°C | 16.0°C | -5.6°C | 45 mm | 71% | 0.7 m/s | — |
| 1982 | 6.5°C | 1.3°C | -3.9°C | 16.6°C | -11.8°C | 68 mm | 76% | 0.8 m/s | — |
| 1981 | 8.9°C | 3.9°C | -1.1°C | 20.5°C | -5.8°C | 61 mm | 76% | 0.8 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 9.3°C with lows near -1.4°C (mean 4°C), based on 45 years of NASA POWER data.
April averages 58 mm of rainfall in Kalispell, about average for rainfall. The wettest on record was 113 mm in 2011.
The hottest April reached 26.1°C in 1987. The coldest dipped to -13.9°C in 1997.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.4°C. Daytime highs moved from 8.8°C to 9.4°C and overnight lows from -1.8°C to -1.7°C over the same span.
April is one of the cooler months of the year in Kalispell and about average for rainfall, so plan for around 9.3°C daytime highs and -1.4°C at night.
Not quite — April is the 6th coolest month in Kalispell, averaging 4°C.
For April in Kalispell, pack warm layers and a jacket for chilly mornings, with typical highs of 9.3°C and lows of -1.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 76% — quite humid.
Average wind speed in April is 0.8 m/s. The windiest April on record averaged 0.9 m/s (1985).
The wettest April on record was 2011 with 113 mm. On average, April sees 58 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Kalispell behaves each April, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for April specifically, along with year-by-year records and how the month has changed over the decades.
