Montana climate
World Climates covers 1 place in Montana. Billings has a hot-summer humid continental climate (Köppen Dfa).
Climate of Billings at a glance
The year average in Billings is 10 °C50 °F. The warmest month is July, with an average high of 33 °C91 °F. The coldest is December, with an average low of −6 °C21 °F. About 428 mm17 in of precipitation falls in a year. May is the wettest month and January the driest. By our comfort score, the best months to visit are May and June and September.
Frequently asked questions
How many places in Montana does this site cover?
World Climates has climate data for one place in Montana: Billings. Its page has monthly averages for temperature, rainfall, humidity and daylight.
What is the warmest month in Billings?
July is the warmest month, with an average high of 33 °C91 °F. December is the coldest, with an average low of −6 °C21 °F.
When does it rain the most in Billings?
May is the wettest month, with about 78 mm3.1 in of precipitation. The yearly total is about 428 mm17 in.
When is the best time to visit Billings?
By our comfort score, the most comfortable months are May and June and September. The score is based on long-term averages, not on a forecast.
Climate of every place in Montana
| Place | Year | Max high | Min low | Precip. |
|---|---|---|---|---|
| Billings | 10 | 33 | −7 | 428 |
Year = annual mean temperature; max high = average high of the warmest month; min low = average low of the coldest month; precip. = annual total. Temperatures in °C°F, precipitation in mminches. Sorted by population.
Data: NASA POWER climatology 2001–2025 (MERRA-2 reanalysis, CERES satellite data) — grid-cell averages, not station records. Sources and method.