Butte weather by month & the best time to visit
🇺🇸 United States · alpine / mountain town · continental climate
The best time to visit Butte is July — its sunniest month (Sunshine Score 89/100), with August and September close behind. Butte averages about 2,777 hours of sunshine a year. Daytime highs around 27°C / 81°F and roughly 33 mm of rain in July.
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- Sun hours / year
- 2,777
- Sunniest month
- July
- Peak score
- 89/100
- Rain / year
- 528 mm
- Snow / year
- ≈1.5 m
- Midday UV at peak
- 9 (very high)
- Population
- 34k
- Elevation
- 1,684 m
When is the best time to visit Butte?
For sunshine, the best time to visit Butte is July, then August and September. The dullest month is January (0/100, 28 mm of rain). The full month-by-month picture is in the table below.
How sunny is Butte?
Butte gets a lot of sun: around 2,777 hours a year. 89 Sunshine Score points separate July (89) from January (0), so the month you pick matters. It ranks #119 of 580 destinations in United States for annual sunshine, above the national median of 2,279 hours. The year's 528 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -1° / 30°F | -12° / 10°F | 28 mm | 1 |
| February | 0 | 0° / 32°F | -12° / 10°F | 32 mm | 2 |
| March | 0 | 5° / 41°F | -7° / 19°F | 40 mm | 4 |
| April | 7 | 9° / 48°F | -3° / 27°F | 58 mm | 5 |
| May | 48 | 15° / 59°F | 1° / 34°F | 74 mm | 6 |
| June | 81 | 21° / 70°F | 6° / 43°F | 79 mm | 8 |
| July | 89 | 27° / 81°F | 10° / 50°F | 33 mm | 9 |
| August | 89 | 26° / 79°F | 9° / 48°F | 37 mm | 7 |
| September | 88 | 20° / 68°F | 4° / 39°F | 41 mm | 5 |
| October | 22 | 11° / 52°F | -2° / 28°F | 39 mm | 3 |
| November | 0 | 4° / 39°F | -7° / 19°F | 34 mm | 1 |
| December | 0 | -2° / 28°F | -12° / 10°F | 33 mm | 1 |
See Butte on the interactive sunshine globe →
Nearby places for sunshine
- Bozeman United States · 106 km · best in Jul · 2,641 h sun/yr
- Missoula United States · 162 km · best in Jul · 2,308 h sun/yr
- Great Falls United States · 190 km · best in Jul · 2,659 h sun/yr
- Idaho Falls United States · 273 km · best in Jul · 2,995 h sun/yr
- Kalispell United States · 294 km · best in Jul · 2,199 h sun/yr
- Jackson Hole United States · 296 km · best in Jul · 2,836 h sun/yr
Nearest destinations
- Helena United States · 83 km · 2,679 h sun/yr · best in Jul
- Salmon United States · 142 km · 2,775 h sun/yr · best in Jul
- West Yellowstone United States · 177 km · 2,635 h sun/yr · best in Jul
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