Bozeman weather in May
May in Bozeman: cool, rainy, with clean air — an excellent time to visit.
#5 of 12 months in Bozeman · #257 of 604 destinations to visit in May · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Bozeman climate normals — May
| Daytime high | 16°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 2°C / 36°F | |
| Feels like (high) | 14°C / 57°F | |
| Rainfall | 111 mm / 4.4 in | 🌧 rainy |
| Rainy days | 18 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 4°C / 39°F | |
| Sunshine | 11.7 h/day | |
| Daylight | 14.9 h | |
| Wind | 14 km/h / 9 mph | |
| Snowfall | 8.9 cm / 3.5 in | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Bozeman in May — FAQ
- Is May a good time to visit Bozeman?
- May in Bozeman: cool, rainy, with clean air — an excellent time to visit. It ranks #5 of 12 months for Bozeman on SeasonMap's comfort score (83/100).
- What is the weather like in Bozeman in May?
- In May, Bozeman averages a daily high of 15.8°C and a low of 2.3°C, with about 110.5 mm of rain over roughly 18.4 rainy days.
- What is the air quality in Bozeman in May?
- Bozeman has a mean US Air Quality Index of about 49 in May.
- Does it snow in Bozeman in May?
- Bozeman sees roughly 8.9 cm of snowfall in May.