2025 Compare Climate & Weather:
Hamilton, MT vs St. Regis, MT

Highlights

On average, there are 157 sunny days per year in St. Regis. Hamilton averages 158 sunny days per year. The US average is 205 sunny days.

St. Regis, Montana gets 22.6 inches of rain, on average, per year. Hamilton, Montana gets 13.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

St. Regis averages 80.7 inches of snow per year. Hamilton averages 32.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

St. Regis, Montana
Summer High: the July high is around 84.4 degrees
Winter Low: the January low is 19.5
Rain: averages 22.6 inches of rain a year
Snow: averages 80.7 inches of snow a year

Hamilton, Montana
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 18.8
Rain: averages 13.1 inches of rain a year
Snow: averages 32.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for St. Regis is 6.2 (10=best), which means it is less comfortable than most places in Montana.

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

Today's Weather - Hamilton, MT

50°F

Today's Weather - St. Regis, MT

59°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Hamilton / St. Regis

July is the hottest month for Hamilton with an average high temperature of 84.2°, which ranks it as about average compared to other places in Montana. In Hamilton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hamilton are June, August and September.

July is the hottest month for St. Regis with an average high temperature of 84.4°, which ranks it as about average compared to other places in Montana. In St. Regis, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Regis are June, September and August.

December has the coldest nighttime temperatures for Hamilton with an average of 16.8°. This is warmer than most places in Montana.

December has the coldest nighttime temperatures for St. Regis with an average of 18.8°. This is warmer than most places in Montana.

In Hamilton, there are 15.4 days annually when the high temperature is over 90°, which is cooler than most places in Montana.

In St. Regis, there are 21.5 days annually when the high temperature is over 90°, which is hotter than most places in Montana.

In Hamilton, there are 169.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Montana.

In St. Regis, there are 181.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Montana.

In Hamilton, there are 7.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In St. Regis, there are 6.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

June is the wettest month in Hamilton with 1.7 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 29% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 13.1 inches in Hamilton means that it is drier than most places in Montana.


November is the wettest month in St. Regis with 2.8 inches of rain, and the driest month is July with 1.0 inches. The wettest season is Spring with 30% of yearly precipitation and 19% occurs in Autumn, which is the driest season. The annual rainfall of 22.6 inches in St. Regis means that it is one of the wettest places in Montana.

June is the rainiest month in Hamilton with 11.0 days of rain, and July is the driest month with only 6.6 rainy days. There are 106.4 rainy days annually in Hamilton, 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 24% chance of a rainy day.

November is the rainiest month in St. Regis with 15.0 days of rain, and August is the driest month with only 6.4 rainy days. There are 130.7 rainy days annually in St. Regis, which is one of the rainiest places in Montana. The rainiest season is Spring when it rains 29% of the time and the driest is Autumn with only a 18% chance of a rainy day.

An annual snowfall of 32.1 inches in Hamilton means that it is less snowy than most places in Montana.

An annual snowfall of 80.7 inches in St. Regis means that it is one of the snowiest places in Montana.

December is the snowiest month in Hamilton with 9.4 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in St. Regis with 22.4 inches of snow, and 7 months of the year have significant snowfall.