2025 Compare Climate & Weather:
Twin Falls, ID vs Missoula, MT

Highlights

On average, there are 159 sunny days per year in Missoula. Twin Falls averages 210 sunny days per year. The US average is 205 sunny days.

Missoula, Montana gets 15.2 inches of rain, on average, per year. Twin Falls, Idaho gets 10.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Missoula averages 39.5 inches of snow per year. Twin Falls averages 18.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Twin Falls, Idaho
Summer High: the July high is around 89.3 degrees
Winter Low: the January low is 20.3
Rain: averages 10.4 inches of rain a year
Snow: averages 18.2 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Twin Falls is 7.2 (10=best), which means it is one of the most pleasant places in Idaho.

Today's Weather - Twin Falls, ID

58°F

Today's Weather - Missoula, MT

52°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Twin Falls / Missoula

July is the hottest month for Twin Falls with an average high temperature of 89.3°, which ranks it as warmer than most places in Idaho. In Twin Falls, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Twin Falls are September, June and May.

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.

December has the coldest nighttime temperatures for Twin Falls with an average of 19.7°. This is about average compared to other places in Idaho.

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

In Twin Falls, there are 38.4 days annually when the high temperature is over 90°, which is hotter than most places in Idaho.

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 Twin Falls, there are 146.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Idaho.

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 Twin Falls, there are 3.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.

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

December is the wettest month in Twin Falls with 1.4 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Summer with 32% of yearly precipitation and 13% occurs in Autumn, which is the driest season. The annual rainfall of 10.4 inches in Twin Falls means that it is drier than most places in Idaho.


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 rainiest month in Twin Falls with 9.5 days of rain, and July is the driest month with only 2.5 rainy days. There are 78.5 rainy days annually in Twin Falls, which is less rainy than most places in Idaho. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 14% chance of a rainy day.

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.

An annual snowfall of 18.2 inches in Twin Falls means that it is less snowy than most places in Idaho.

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

December is the snowiest month in Twin Falls with 5.5 inches of snow, and 5 months of the year have significant snowfall.

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