Butte (MT) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Butte.
Climate overview of Butte
The climate in Butte, Montana, United States of America, is marked by large temperature swings across the seasons, ranging from 27°C (81°F) in July to -1°C (30°F) in December.
Rain/snowfall is modest, totalling around 384 mm (15 in) annually. The city experiences a distinct dry season from July to March, with warm summers and very cold winters. June tends to be the wettest month.
Butte Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Butte - and find the best time to visit.
Monthly Temperature in Butte
In Butte, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 27°C (81°F) in July, the warmest time of the year, to a very cold -1°C (30°F) during cooler months like December.
At night, you can expect temperatures ranging from 8°C (46°F) in July to around -13°C (9°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Butte
Butte tends toward drier weather patterns, receiving approximately 384 mm (15 in) of rain/snow per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives moderate rainfall, averaging 62 mm (2.4 in) of precipitation, recorded across 14 rainy days. In contrast, the driest month January brings less snowfall, with 16 mm (0.6 in) over 10 snowy days. For more details, please visit our Butte Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Butte
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Fewest rainy days: July, August and September
- Seasonal pattern: A distinct dry season from July to March, with warm summers and very cold winters
- Coldest conditions: December, with freezing nights around -13°C (9°F).
Frequently asked questions about the climate in Butte
What is the best time to visit Butte?
June, July, August and September typically offer the most optimal weather in Butte. In contrast, January, February, April, November and December tend to have less optimal conditions. Butte has a distinct dry season from July to March, with warm summers and very cold winters.
What temperatures can I expect in Butte?
Daytime highs range from -1°C (30°F) in December to 27°C (81°F) in July. Nighttime lows range from -13°C (9°F) to 8°C (46°F). Temperatures vary considerably through the year.
How much rain does Butte get?
Annual rainfall is around 384 mm (15 in). June is the wettest month with 62 mm (2.4 in), while January is the driest with 16 mm (0.6 in).
Butte 3-Day Forecast
Butte (MT) 3-Day Forecast
Butte on the map
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