Montana Weather and Climate: A Comprehensive Guide
The climate in Montana is marked by big temperature swings throughout the year.
Temperatures range from pleasant during the warmest months
to very cold in the cooler months.
It also has a relatively rain/snowy climate with high levels of precipitation.
Let’s explore the climate details in depth to provide you with a complete overview.
Average maximum day and minimum night temperature
In Montana, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a pleasant 19°C in July to a very cold -4°C in January.
Nighttime temperatures can drop, with average lows reaching -13°C in January. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Montana experiences significant rain/snowfall throughout the year, averaging 1598 mm of precipitation annually. The wettest period in Montana occurs in June, which receives around 158 mm of precipitation. During the driest month, October, Montana experiences high rainfall, totaling approximately 112 mm. The consistent precipitation levels throughout the year contribute to a relatively stable climate.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In Montana, summer days are longer and more sunny, with daily sunshine hours peaking at 9.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.3 hours per average day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is high throughout the year in Montana.
The city experiences its highest humidity in December, reaching 83%. In April, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The average wind speed over the year ranges from 1 m/s to 2 m/s. It is lower in January, October, November and December and higher in February, March, April, May, June, July, August and September.
The mean monthly wind speed over the year (meters per second)
clear and no rain clear and no rain clear and no rainForecast for Montana
1 m/s
1 m/s
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Montana in Switzerland
Other facts from our historical weather data:Most rainfall (rainy season) is seen in May, June and July.
The coldest season / winter is in the following months: January, February, November and December.
July has an average maximum temperature of 19°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of -4°C.
June tops the wettest month list with 158 mm of rainfall.
October is the driest month with 112 mm of precipitation.
July is the sunniest month with an average of 270 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
