2025 Compare Climate & Weather:
Great Falls, MT vs Westminster, CO

Highlights

On average, there are 242 sunny days per year in Westminster. Great Falls averages 188 sunny days per year. The US average is 205 sunny days.

Westminster, Colorado gets 16.9 inches of rain, on average, per year. Great Falls, Montana gets 14.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Westminster averages 63.8 inches of snow per year. Great Falls averages 58 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Westminster, Colorado
Summer High: the July high is around 89.5 degrees
Winter Low: the January low is 18.4
Rain: averages 16.9 inches of rain a year
Snow: averages 63.8 inches of snow a year

Great Falls, Montana
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 16.6
Rain: averages 14.4 inches of rain a year
Snow: averages 58 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Westminster is 7.2 (10=best), which means it is more comfortable than most places in Colorado.

The annual BestPlaces Comfort Index for Great Falls is 6.8 (10=best), which means it is more comfortable than most places in Montana.

Today's Weather - Great Falls, MT

54°F

Today's Weather - Westminster, CO

51°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Great Falls / Westminster

July is the hottest month for Great Falls with an average high temperature of 85.3°, which ranks it as warmer than most places in Montana. In Great Falls, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Great Falls are June, September and August.

July is the hottest month for Westminster with an average high temperature of 89.5°, which ranks it as warmer than most places in Colorado. In Westminster, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Westminster are September, June and May.

January has the coldest nighttime temperatures for Great Falls with an average of 16.6°. This is warmer than most places in Montana.

December has the coldest nighttime temperatures for Westminster with an average of 17.8°. This is warmer than most places in Colorado.

In Great Falls, there are 20.9 days annually when the high temperature is over 90°, which is hotter than most places in Montana.

In Westminster, there are 39.7 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Great Falls, there are 151.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Montana.

In Westminster, there are 152.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Great Falls, there are 16.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Montana.

In Westminster, there are 5.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

June is the wettest month in Great Falls with 2.5 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 38% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 14.4 inches in Great Falls means that it is about average compared to other places in Montana.


May is the wettest month in Westminster with 2.4 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 36% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 16.9 inches in Westminster means that it is about average compared to other places in Colorado.

June is the rainiest month in Great Falls with 11.5 days of rain, and November is the driest month with only 5.6 rainy days. There are 89.8 rainy days annually in Great Falls, which is about average compared to other places in Montana. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 20% chance of a rainy day.

May is the rainiest month in Westminster with 10.2 days of rain, and January is the driest month with only 4.6 rainy days. There are 84.4 rainy days annually in Westminster, which is rainier than most places in Colorado. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 18% chance of a rainy day.

An annual snowfall of 58.0 inches in Great Falls means that it is snowier than most places in Montana.

An annual snowfall of 63.8 inches in Westminster means that it is about average compared to other places in Colorado.

March is the snowiest month in Great Falls with 10.4 inches of snow, and 9 months of the year have significant snowfall.

March is the snowiest month in Westminster with 12.3 inches of snow, and 9 months of the year have significant snowfall.