2025 Compare Climate & Weather:
Roundup, MT vs Grand Rapids, MN

Highlights

On average, there are 180 sunny days per year in Grand Rapids. Roundup averages 198 sunny days per year. The US average is 205 sunny days.

Grand Rapids, Minnesota gets 28.1 inches of rain, on average, per year. Roundup, Montana gets 14.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Grand Rapids averages 44.5 inches of snow per year. Roundup averages 32.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Grand Rapids, Minnesota
Summer High: the July high is around 78.8 degrees
Winter Low: the January low is -4.1
Rain: averages 28.1 inches of rain a year
Snow: averages 44.5 inches of snow a year

Roundup, Montana
Summer High: the July high is around 88.1 degrees
Winter Low: the January low is 13
Rain: averages 14.1 inches of rain a year
Snow: averages 32.9 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Grand Rapids is 6.1 (10=best), which means it is one of the least comfortable places in Minnesota.

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

Today's Weather - Roundup, MT

74°F

Today's Weather - Grand Rapids, MN

63°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Roundup / Grand Rapids

July is the hottest month for Roundup with an average high temperature of 88.1°, which ranks it as one of the hottest places in Montana. In Roundup, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Roundup are June, September and May.

July is the hottest month for Grand Rapids with an average high temperature of 78.8°, which ranks it as one of the coolest places in Minnesota. In Grand Rapids, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grand Rapids are July, August and June.

January has the coldest nighttime temperatures for Roundup with an average of 13.0°. This is about average compared to other places in Montana.

January has the coldest nighttime temperatures for Grand Rapids with an average of -4.1°. This is colder than most places in Minnesota.

In Roundup, there are 33.7 days annually when the high temperature is over 90°, which is one of the hottest places in Montana.

In Grand Rapids, there are 3.2 days annually when the high temperature is over 90°, which is cooler than most places in Minnesota.

In Roundup, there are 172.8 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Montana.

In Grand Rapids, there are 183.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Minnesota.

In Roundup, there are 17.5 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Montana.

In Grand Rapids, there are 50.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Minnesota.

June is the wettest month in Roundup with 2.5 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 36% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 14.1 inches in Roundup means that it is about average compared to other places in Montana.


July is the wettest month in Grand Rapids with 4.3 inches of rain, and the driest month is February with 0.6 inches. The wettest season is Autumn with 43% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 28.1 inches in Grand Rapids means that it is drier than most places in Minnesota.

June is the rainiest month in Roundup with 10.3 days of rain, and November is the driest month with only 3.9 rainy days. There are 73.8 rainy days annually in Roundup, which is less rainy than most places in Montana. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 17% chance of a rainy day.

June is the rainiest month in Grand Rapids with 13.1 days of rain, and February is the driest month with only 7.5 rainy days. There are 119.8 rainy days annually in Grand Rapids, which is one of the rainiest places in Minnesota. The rainiest season is Autumn when it rains 29% of the time and the driest is Spring with only a 22% chance of a rainy day.

An annual snowfall of 32.9 inches in Roundup means that it is less snowy than most places in Montana.

An annual snowfall of 44.5 inches in Grand Rapids means that it is about average compared to other places in Minnesota.

March is the snowiest month in Roundup with 6.6 inches of snow, and 8 months of the year have significant snowfall.

December is the snowiest month in Grand Rapids with 9.9 inches of snow, and 7 months of the year have significant snowfall.