April is one of the cooler months of the year in Bozeman, with average highs near 7.4°C and lows around -4.6°C (mean 1.4°C). It is a relatively wet time of year, averaging 69 mm of rainfall and 72% relative humidity across the period.
April is one of the cooler months of the year in Bozeman. Across 45 years of records, the warmest April in Bozeman was 1987 — when the month averaged 6.4°C — while the coldest was 2008 at -3.7°C. Typical April days reach 7.4°C with nights near -4.6°C. The long-term trend is cooling, about 0.2°C per decade.
April is a relatively wet time of year in Bozeman, averaging 69 mm of rainfall. The wettest April on record was 2018 with 119 mm, while the driest was 1985 at 23 mm.
Relative humidity in Bozeman during April averages 72%. The most humid April was 2008 at 85%, and the least humid was 1987 at 56%.
April receives about 4.9 kWh/m²/day of solar energy in Bozeman. The sunniest April was 2023 at 5.7 kWh/m²/day, and the cloudiest was 2019 at 4.1.
Average wind speed in Bozeman during April is 0.9 m/s. The windiest Aprils were 2021, 2022 and 2023, among others at 1 m/s, while the calmest were 1998, 2007 and 2009, among others at 0.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 1.9°C | 1.2°C | 1.6°C | 1.3°C | 0.9°C | -1°C |
| Avg High | 8.4°C | 6.9°C | 7.8°C | 7.1°C | 6.9°C | -1.5°C |
| Avg Low | -4.5°C | -4.4°C | -4.6°C | -4.3°C | -5.2°C | -0.7°C |
| Avg Rain | 52 mm | 75 mm | 67 mm | 88 mm | 56 mm | +4 mm |
April temperatures in Bozeman have risen by about 0.3°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -20.2°C (2023) to a record high of 24.2°C (1987).
Rainfall in April is a relatively wet time of year, averaging 69 mm, with a wettest year of 119 mm.
A good time to visit Bozeman
April is a good time to visit Bozeman, with days averaging 7.4°C and nights around -4.6°C (mean 1.4°C, cooler than Bozeman's yearly average) and moderate rainfall. July and August 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 | 8.2°C | 1.9°C | -4.4°C | 17.8°C | -12.6°C | 67 mm | 71% | 0.9 m/s | 4.9 |
| 2024 | 8.8°C | 2.6°C | -3.6°C | 18.7°C | -11.4°C | 69 mm | 73% | 0.9 m/s | 4.8 |
| 2023 | 5.2°C | -0.7°C | -6.6°C | 20.0°C | -20.2°C | 50 mm | 78% | 1 m/s | 5.7 |
| 2022 | 4.6°C | -1.0°C | -6.6°C | 16.6°C | -15.9°C | 68 mm | 68% | 1 m/s | 4.7 |
| 2021 | 7.9°C | 1.6°C | -4.7°C | 22.0°C | -10.9°C | 39 mm | 66% | 1 m/s | 5.2 |
| 2020 | 6.6°C | 0.7°C | -5.3°C | 20.4°C | -13.8°C | 42 mm | 72% | 1 m/s | 5.5 |
| 2019 | 7.2°C | 2.0°C | -3.1°C | 16.3°C | -9.7°C | 98 mm | 78% | 0.9 m/s | 4.1 |
| 2018 🌧️ | 6.7°C | 0.8°C | -5.0°C | 18.5°C | -11.9°C | 119 mm | 81% | 0.9 m/s | 4.5 |
| 2017 | 6.7°C | 1.4°C | -3.9°C | 13.7°C | -8.3°C | 101 mm | 77% | 0.9 m/s | 4.6 |
| 2016 | 10.4°C | 3.9°C | -2.6°C | 19.8°C | -8.8°C | 59 mm | 73% | 0.9 m/s | 4.7 |
| 2015 | 8.5°C | 2.4°C | -3.7°C | 19.9°C | -9.8°C | 63 mm | 68% | 0.9 m/s | 5.2 |
| 2014 | 6.7°C | 0.9°C | -4.8°C | 13.8°C | -14.8°C | 66 mm | 74% | 1 m/s | 4.9 |
| 2013 | 5.5°C | -0.5°C | -6.4°C | 15.9°C | -13.2°C | 53 mm | 71% | 1 m/s | 5 |
| 2012 | 9.9°C | 3.8°C | -2.3°C | 22.4°C | -7.9°C | 99 mm | 72% | 0.9 m/s | 4.9 |
| 2011 | 2.9°C | -1.8°C | -6.4°C | 7.5°C | -11.7°C | 113 mm | 80% | 1 m/s | 4.2 |
| 2010 | 6.3°C | 0.5°C | -5.3°C | 18.8°C | -13.9°C | 106 mm | 76% | 1 m/s | 5 |
| 2009 | 5.2°C | -0.4°C | -5.9°C | 17.5°C | -18.1°C | 103 mm | 82% | 0.8 m/s | 4.7 |
| 2008 ❄️ | 1.9°C | -3.7°C | -9.3°C | 14.5°C | -19.7°C | 70 mm | 85% | 0.9 m/s | 5.3 |
| 2007 | 8.2°C | 2.4°C | -3.4°C | 20.7°C | -8.6°C | 73 mm | 74% | 0.8 m/s | 4.7 |
| 2006 | 9.1°C | 3.0°C | -3.1°C | 18.2°C | -8.4°C | 79 mm | 73% | 1 m/s | 4.7 |
| 2005 | 7.5°C | 1.6°C | -4.4°C | 14.9°C | -9.4°C | 59 mm | 71% | 1 m/s | 4.6 |
| 2004 | 10.5°C | 3.6°C | -3.2°C | 18.7°C | -8.2°C | 52 mm | 65% | 0.9 m/s | 5.2 |
| 2003 | 8.6°C | 2.3°C | -3.9°C | 17.5°C | -12.3°C | 89 mm | 72% | 0.9 m/s | 4.4 |
| 2002 | 7.7°C | 1.2°C | -5.3°C | 17.1°C | -11.5°C | 41 mm | 63% | 1 m/s | 4.8 |
| 2001 | 8.2°C | 2.1°C | -4.1°C | 20.2°C | -10.6°C | 56 mm | 66% | 0.9 m/s | 4.7 |
| 2000 | 10.6°C | 3.6°C | -3.4°C | 18.9°C | -11.7°C | 50 mm | 69% | 0.9 m/s | 5.1 |
| 1999 | 6.6°C | 0.7°C | -5.1°C | 16.4°C | -10.8°C | 53 mm | 73% | 0.9 m/s | 5 |
| 1998 | 7.0°C | 1.3°C | -4.3°C | 17.8°C | -13.3°C | 63 mm | 74% | 0.8 m/s | 5.2 |
| 1997 | 3.6°C | -1.9°C | -7.3°C | 11.8°C | -19.6°C | 78 mm | 80% | 1 m/s | 4.9 |
| 1996 | 6.7°C | 1.3°C | -4.1°C | 17.3°C | -9.1°C | 88 mm | 76% | 1 m/s | 4.6 |
| 1995 | 5.1°C | 0.1°C | -4.9°C | 13.1°C | -10.9°C | 97 mm | 78% | 0.9 m/s | 5.1 |
| 1994 | 9.1°C | 2.6°C | -4.0°C | 21.9°C | -11.9°C | 54 mm | 69% | 0.9 m/s | 4.6 |
| 1993 | 5.6°C | 0.7°C | -4.3°C | 12.2°C | -7.5°C | 98 mm | 76% | 0.8 m/s | 4.6 |
| 1992 | 10.6°C | 4.1°C | -2.4°C | 21.0°C | -7.4°C | 71 mm | 67% | 0.9 m/s | 4.8 |
| 1991 | 5.1°C | 0.2°C | -4.8°C | 16.0°C | -9.9°C | 92 mm | 75% | 1 m/s | 4.8 |
| 1990 | 10.0°C | 3.4°C | -3.1°C | 18.9°C | -10.6°C | 59 mm | 70% | 0.8 m/s | 4.7 |
| 1989 | 9.1°C | 2.5°C | -4.1°C | 20.8°C | -11.9°C | 53 mm | 67% | 1 m/s | 4.5 |
| 1988 | 11.2°C | 4.0°C | -3.3°C | 19.9°C | -8.5°C | 69 mm | 66% | 0.9 m/s | 4.9 |
| 1987 🔥 | 14.3°C | 6.4°C | -1.6°C | 24.2°C | -8.5°C | 24 mm | 56% | 0.9 m/s | 5.6 |
| 1986 | 7.6°C | 1.7°C | -4.3°C | 18.9°C | -11.0°C | 74 mm | 72% | 0.9 m/s | 4.8 |
| 1985 | 10.5°C | 3.7°C | -3.1°C | 20.2°C | -8.0°C | 23 mm | 63% | 1 m/s | 5.5 |
| 1984 | 5.1°C | -0.7°C | -6.6°C | 17.2°C | -17.8°C | 74 mm | 77% | 1 m/s | 4.6 |
| 1983 | 5.0°C | -0.8°C | -6.6°C | 14.3°C | -19.4°C | 41 mm | 75% | 0.8 m/s | — |
| 1982 | 3.6°C | -1.9°C | -7.4°C | 14.5°C | -19.3°C | 64 mm | 76% | 1 m/s | — |
| 1981 | 8.9°C | 2.6°C | -3.7°C | 19.5°C | -11.9°C | 47 mm | 67% | 1 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 7.4°C with lows near -4.6°C (mean 1.4°C), based on 45 years of NASA POWER data.
April averages 69 mm of rainfall in Bozeman, a relatively wet time of year. The wettest on record was 119 mm in 2018.
The hottest April reached 24.2°C in 1987. The coldest dipped to -20.2°C in 2023.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.3°C. Daytime highs moved from 6.6°C to 6.9°C and overnight lows from -5.5°C to -5.2°C over the same span.
April is one of the cooler months of the year in Bozeman and a relatively wet time of year, so plan for around 7.4°C daytime highs and -4.6°C at night.
Not quite — April is the 6th coolest month in Bozeman, averaging 1.4°C.
For April in Bozeman, pack warm layers and a jacket for chilly mornings, with typical highs of 7.4°C and lows of -4.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 72% — moderately humid.
Average wind speed in April is 0.9 m/s. The windiest April on record averaged 1 m/s (1981).
The wettest April on record was 2018 with 119 mm. On average, April sees 69 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 Bozeman 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.
