United States of America
Butte sees feels-like daytime highs peak around 27.8°C in July and nighttime lows bottom out near -12.4°C in January. June is the wettest month (~47 mm), while January is the driest (~2 mm). For sunshine, July leads with about 74% clear skies.
Based on mild feels-like temperatures and low rain chances, the most comfortable months are July, August, and June — expect around 11–27.8°C with roughly 20% chance of rain on a given day in July.
| Month | Low / High °C | Rain % | Rainfall | Clear skies | Wind |
|---|---|---|---|---|---|
| January | -12.4° / -3.2° | 1% | 2 mm | 42% | 11 kph |
| February | -9.9° / 0° | 2% | 3 mm | 42% | 10.8 kph |
| March | -6° / 4.3° | 4% | 6 mm | 39% | 10.3 kph |
| April | -1.4° / 9.9° | 12% | 17 mm | 42% | 9.7 kph |
| May | 3.5° / 15.9° | 27% | 44 mm | 46% | 8.8 kph |
| June☀ | 8.1° / 22.2° | 29% | 47 mm | 58% | 8.1 kph |
| July☀ | 11° / 27.8° | 20% | 27 mm | 74% | 7.4 kph |
| August☀ | 10° / 27.5° | 17% | 22 mm | 74% | 7.4 kph |
| September | 5.1° / 20.5° | 15% | 22 mm | 64% | 8.1 kph |
| October | -0.8° / 12.2° | 10% | 14 mm | 55% | 9.1 kph |
| November | -7.2° / 2.2° | 5% | 6 mm | 46% | 10 kph |
| December | -12.2° / -3.3° | 2% | 3 mm | 43% | 10.7 kph |
Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).
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