2025 Compare Climate & Weather:
Missoula, MT vs Mount Shasta, CA

Highlights

On average, there are 229 sunny days per year in Mount Shasta. Missoula averages 159 sunny days per year. The US average is 205 sunny days.

Mount Shasta, California gets 40.6 inches of rain, on average, per year. Missoula, Montana gets 15.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Mount Shasta averages 59.3 inches of snow per year. Missoula averages 39.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Mount Shasta, California
Summer High: the July high is around 87 degrees
Winter Low: the January low is 25.8
Rain: averages 40.6 inches of rain a year
Snow: averages 59.3 inches of snow a year

Missoula, Montana
Summer High: the July high is around 84.6 degrees
Winter Low: the January low is 17.9
Rain: averages 15.2 inches of rain a year
Snow: averages 39.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Mount Shasta is 7.0 (10=best), which means it is one of the least comfortable places in California.

The annual BestPlaces Comfort Index for Missoula is 6.6 (10=best), which means it is about average compared to other places in Montana.

Today's Weather - Missoula, MT

41°F

Today's Weather - Mount Shasta, CA

45°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Missoula / Mount Shasta

July is the hottest month for Missoula with an average high temperature of 84.6°, which ranks it as about average compared to other places in Montana. In Missoula, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Missoula are June, August and September.

July is the hottest month for Mount Shasta with an average high temperature of 87.0°, which ranks it as cooler than most places in California. In Mount Shasta, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mount Shasta are June, September and May.

December has the coldest nighttime temperatures for Missoula with an average of 16.9°. This is warmer than most places in Montana.

December has the coldest nighttime temperatures for Mount Shasta with an average of 25.6°. This is one of the coldest places in California.

In Missoula, there are 19.9 days annually when the high temperature is over 90°, which is about average compared to other places in Montana.

In Mount Shasta, there are 28.2 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Missoula, there are 166.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In Mount Shasta, there are 141.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in California.

In Missoula, there are 6.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In Mount Shasta, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in California.

June is the wettest month in Missoula with 2.2 inches of rain, and the driest month is February with 0.8 inches. The wettest season is Summer with 30% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 15.2 inches in Missoula means that it is wetter than most places in Montana.


December is the wettest month in Mount Shasta with 7.2 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 51% of yearly precipitation and 4% occurs in Autumn, which is the driest season. The annual rainfall of 40.6 inches in Mount Shasta means that it is wetter than most places in California.

December is the rainiest month in Missoula with 12.1 days of rain, and July is the driest month with only 6.9 rainy days. There are 120.4 rainy days annually in Missoula, which is rainier than most places in Montana. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 22% chance of a rainy day.

December is the rainiest month in Mount Shasta with 13.1 days of rain, and August is the driest month with only 1.7 rainy days. There are 96.0 rainy days annually in Mount Shasta, which is one of the rainiest places in California. The rainiest season is Spring when it rains 39% of the time and the driest is Autumn with only a 8% chance of a rainy day.

An annual snowfall of 39.5 inches in Missoula means that it is about average compared to other places in Montana.

An annual snowfall of 59.3 inches in Mount Shasta means that it is one of the snowiest places in California.

December is the snowiest month in Missoula with 11.1 inches of snow, and 7 months of the year have significant snowfall.

December is the snowiest month in Mount Shasta with 17.1 inches of snow, and 6 months of the year have significant snowfall.