2025 Compare Climate & Weather:
Buffalo, WY vs Spearfish, SD

Highlights

On average, there are 227 sunny days per year in Spearfish. Buffalo averages 213 sunny days per year. The US average is 205 sunny days.

Spearfish, South Dakota gets 21.3 inches of rain, on average, per year. Buffalo, Wyoming gets 13.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Spearfish averages 56.4 inches of snow per year. Buffalo averages 62.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Spearfish, South Dakota
Summer High: the July high is around 87.6 degrees
Winter Low: the January low is 17
Rain: averages 21.3 inches of rain a year
Snow: averages 56.4 inches of snow a year

Buffalo, Wyoming
Summer High: the July high is around 84.3 degrees
Winter Low: the January low is 14.3
Rain: averages 13.1 inches of rain a year
Snow: averages 62.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Spearfish is 6.9 (10=best), which means it is more comfortable than most places in South Dakota.

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

Today's Weather - Buffalo, WY

64°F

Today's Weather - Spearfish, SD

68°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Buffalo / Spearfish

July is the hottest month for Buffalo with an average high temperature of 84.3°, which ranks it as about average compared to other places in Wyoming. In Buffalo, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Buffalo are June, August and July.

July is the hottest month for Spearfish with an average high temperature of 87.6°, which ranks it as warmer than most places in South Dakota. In Spearfish, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Spearfish are June, September and August.

December has the coldest nighttime temperatures for Buffalo with an average of 13.4°. This is warmer than most places in Wyoming.

January has the coldest nighttime temperatures for Spearfish with an average of 17.0°. This is one of the warmest places in South Dakota.

In Buffalo, there are 18.6 days annually when the high temperature is over 90°, which is about average compared to other places in Wyoming.

In Spearfish, there are 31.3 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Buffalo, there are 173.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wyoming.

In Spearfish, there are 144.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in South Dakota.

In Buffalo, there are 13.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Wyoming.

In Spearfish, there are 12.9 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 Buffalo with 2.4 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 35% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 13.1 inches in Buffalo means that it is about average compared to other places in Wyoming.


May is the wettest month in Spearfish with 3.6 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 34% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 21.3 inches in Spearfish means that it is drier than most places in South Dakota.

May is the rainiest month in Buffalo with 11.1 days of rain, and November is the driest month with only 5.1 rainy days. There are 87.0 rainy days annually in Buffalo, which is rainier than most places in Wyoming. 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.

June is the rainiest month in Spearfish with 11.7 days of rain, and February is the driest month with only 5.5 rainy days. There are 90.3 rainy days annually in Spearfish, which is one of the rainiest places in South Dakota. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 19% chance of a rainy day.

An annual snowfall of 62.2 inches in Buffalo means that it is snowier than most places in Wyoming.

An annual snowfall of 56.4 inches in Spearfish means that it is one of the snowiest places in South Dakota.

March is the snowiest month in Buffalo with 11.4 inches of snow, and 9 months of the year have significant snowfall.

March is the snowiest month in Spearfish with 10.8 inches of snow, and 8 months of the year have significant snowfall.