The year at a glance
Averages from 30 years of climate history, 1991-2020
| Bozeman | Metric | Helena |
|---|---|---|
| 213 days | Sunny daysclear or partly cloudy skies | 201 days |
| 27 in | Precipitationper year | 21 in |
| 149 days | Wet daysrain or snow per year | 133 days |
| 91 in | Snowfallper year | 40 in |
| 12 days | Hot daysabove 90 °F | 26 days |
| 177 days | Freezing nightsat or below 32 °F | 171 days |
| 67% | Humidityaverage relative | 65% |
| 44 °F | Average temperatureyear round | 46 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bozeman high | 34 | 37 | 46 | 55 | 63 | 72 | 82 | 82 | 71 | 57 | 42 | 33 |
| Helena high | 32 | 37 | 47 | 56 | 66 | 74 | 86 | 84 | 73 | 57 | 43 | 33 |
| Bozeman low | 15 | 17 | 24 | 31 | 39 | 46 | 52 | 50 | 42 | 32 | 22 | 14 |
| Helena low | 13 | 17 | 24 | 32 | 41 | 48 | 55 | 53 | 44 | 33 | 23 | 14 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bozeman | 1.2 | 1.3 | 1.9 | 3.2 | 4.0 | 4.2 | 2.0 | 1.6 | 2.1 | 2.3 | 1.7 | 1.4 |
| Helena | 0.9 | 0.9 | 1.4 | 2.4 | 3.2 | 3.8 | 1.7 | 1.5 | 1.6 | 1.5 | 1.2 | 1.1 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bozeman | 15 | 14 | 14 | 13 | 15 | 19 | 27 | 26 | 22 | 19 | 16 | 15 |
| Helena | 13 | 12 | 13 | 13 | 15 | 18 | 26 | 26 | 21 | 18 | 14 | 12 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Bozeman vs another city
- Bozeman vs Four Corners, MT
- Bozeman vs Belgrade, MT
- Bozeman vs Livingston, MT
- Bozeman vs Helena Valley Southeast, MT
- Bozeman vs Butte, MT
- Bozeman vs New York, NY
- Bozeman vs Los Angeles, CA
- Bozeman vs Chicago, IL
- Bozeman vs Houston, TX
- Bozeman vs Phoenix, AZ
- Bozeman vs Philadelphia, PA
Helena vs another city
- Helena vs Helena Valley West Central, MT
- Helena vs Helena Valley Southeast, MT
- Helena vs Helena Valley Northwest, MT
- Helena vs Butte, MT
- Helena vs Anaconda, MT
- Helena vs Belgrade, MT
- Helena vs New York, NY
- Helena vs Los Angeles, CA
- Helena vs Chicago, IL
- Helena vs Houston, TX
- Helena vs Phoenix, AZ
- Helena vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).