2025 Compare Climate & Weather:
Billings, MT vs Boise City, ID

Highlights

On average, there are 206 sunny days per year in Boise City. Billings averages 205 sunny days per year. The US average is 205 sunny days.

Boise City, Idaho gets 13 inches of rain, on average, per year. Billings, Montana gets 14.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Boise City averages 17.5 inches of snow per year. Billings averages 46.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Boise City, Idaho
Summer High: the July high is around 91.6 degrees
Winter Low: the January low is 23.7
Rain: averages 13 inches of rain a year
Snow: averages 17.5 inches of snow a year

Billings, Montana
Summer High: the July high is around 88.3 degrees
Winter Low: the January low is 15.8
Rain: averages 14.2 inches of rain a year
Snow: averages 46.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Boise is 7.3 (10=best), which means it is one of the most pleasant places in Idaho.

The annual BestPlaces Comfort Index for Billings is 7.0 (10=best), which means it is one of the most pleasant places in Montana.

Today's Weather - Billings, MT

51°F

Today's Weather - Boise City, ID

56°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Billings / Boise City

July is the hottest month for Billings with an average high temperature of 88.3°, which ranks it as one of the hottest places in Montana. In Billings, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Billings are June, September and May.

July is the hottest month for Boise with an average high temperature of 91.6°, which ranks it as one of the hottest places in Idaho. In Boise, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boise are September, June and May.

January has the coldest nighttime temperatures for Billings with an average of 15.8°. This is warmer than most places in Montana.

December has the coldest nighttime temperatures for Boise with an average of 22.7°. This is warmer than most places in Idaho.

In Billings, there are 33.1 days annually when the high temperature is over 90°, which is one of the hottest places in Montana.

In Boise, there are 51.0 days annually when the high temperature is over 90°, which is one of the hottest places in Idaho.

In Billings, there are 151.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Montana.

In Boise, there are 114.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Idaho.

In Billings, there are 12.6 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In Boise, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.

May is the wettest month in Billings with 2.3 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Summer with 35% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 14.2 inches in Billings means that it is about average compared to other places in Montana.


December is the wettest month in Boise with 1.9 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 35% of yearly precipitation and 10% occurs in Autumn, which is the driest season. The annual rainfall of 13.0 inches in Boise means that it is about average compared to other places in Idaho.

May is the rainiest month in Billings with 11.0 days of rain, and January is the driest month with only 5.4 rainy days. There are 88.3 rainy days annually in Billings, which is about average compared to other places in Montana. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 19% chance of a rainy day.

December is the rainiest month in Boise with 11.3 days of rain, and August is the driest month with only 2.3 rainy days. There are 87.0 rainy days annually in Boise, which is less rainy than most places in Idaho. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 12% chance of a rainy day.

An annual snowfall of 46.3 inches in Billings means that it is snowier than most places in Montana.

An annual snowfall of 17.5 inches in Boise means that it is less snowy than most places in Idaho.

March is the snowiest month in Billings with 9.2 inches of snow, and 9 months of the year have significant snowfall.

December is the snowiest month in Boise with 6.4 inches of snow, and 5 months of the year have significant snowfall.