Mild
Average highs are around 26°C, so days are mild rather than hot.
Weather Guide
Butte, Montana, United States Average Monthly Weather
Weather score45Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 12°C, sunshine averages 7.2h per day, and rainfall totals about 341mm.
Annual weather
Annual averages
Temp
12°C
Rain
341mm
Annual total
Sun
7.2h
Weather score
45
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 34mm, which is relatively low for holiday planning.
Bright
Sunshine averages 10h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Butte, Montana, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August26°C average high
August is one of Butte's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
August34mm average rain
August sits near Butte's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and July to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August10 hours average sun
August is brighter than Butte's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August66 weather score
August scores above Butte's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
