2025 Compare Climate & Weather:
Belle Fourche, SD vs Hermosa, SD

Highlights

On average, there are 226 sunny days per year in Hermosa. Belle Fourche averages 227 sunny days per year. The US average is 205 sunny days.

Hermosa, South Dakota gets 18 inches of rain, on average, per year. Belle Fourche, South Dakota gets 17.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Hermosa averages 35.2 inches of snow per year. Belle Fourche averages 30.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Hermosa, South Dakota
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 14.2
Rain: averages 18 inches of rain a year
Snow: averages 35.2 inches of snow a year

Belle Fourche, South Dakota
Summer High: the July high is around 87.3 degrees
Winter Low: the January low is 12.5
Rain: averages 17.9 inches of rain a year
Snow: averages 30.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Hermosa is 7.1 (10=best), which means it is one of the most pleasant places in South Dakota.

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

Today's Weather - Belle Fourche, SD

38°F

Today's Weather - Hermosa, SD

38°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Belle Fourche / Hermosa

July is the hottest month for Belle Fourche with an average high temperature of 87.3°, which ranks it as warmer than most places in South Dakota. In Belle Fourche, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Belle Fourche are June, September and August.

July is the hottest month for Hermosa with an average high temperature of 85.3°, which ranks it as about average compared to other places in South Dakota. In Hermosa, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hermosa are June, September and August.

January has the coldest nighttime temperatures for Belle Fourche with an average of 12.5°. This is one of the warmest places in South Dakota.

January has the coldest nighttime temperatures for Hermosa with an average of 14.2°. This is one of the warmest places in South Dakota.

In Belle Fourche, there are 31.2 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Hermosa, there are 22.4 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

In Belle Fourche, there are 167.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in South Dakota.

In Hermosa, there are 159.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Belle Fourche, there are 18.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

In Hermosa, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

May is the wettest month in Belle Fourche with 3.1 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Summer with 35% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 17.9 inches in Belle Fourche means that it is one of the driest places in South Dakota.


May is the wettest month in Hermosa with 3.8 inches of rain, and the driest month is January with 0.2 inches. The wettest season is Autumn with 40% of yearly precipitation and 5% occurs in Spring, which is the driest season. The annual rainfall of 18.0 inches in Hermosa means that it is one of the driest places in South Dakota.

May is the rainiest month in Belle Fourche with 10.0 days of rain, and February is the driest month with only 4.2 rainy days. There are 76.6 rainy days annually in Belle Fourche, which is less rainy than most places in South Dakota. 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.

June is the rainiest month in Hermosa with 11.1 days of rain, and December is the driest month with only 3.3 rainy days. There are 78.4 rainy days annually in Hermosa, which is less rainy than most places in South Dakota. The rainiest season is Autumn when it rains 35% of the time and the driest is Spring with only a 14% chance of a rainy day.

An annual snowfall of 30.2 inches in Belle Fourche means that it is one of the least snowy places in South Dakota.

An annual snowfall of 35.2 inches in Hermosa means that it is less snowy than most places in South Dakota.

March is the snowiest month in Belle Fourche with 6.3 inches of snow, and 8 months of the year have significant snowfall.

March is the snowiest month in Hermosa with 7.8 inches of snow, and 8 months of the year have significant snowfall.