2025 Compare Climate & Weather:
Hot Springs, SD vs Thermopolis, WY

Highlights

On average, there are 235 sunny days per year in Thermopolis. Hot Springs averages 229 sunny days per year. The US average is 205 sunny days.

Thermopolis, Wyoming gets 11.1 inches of rain, on average, per year. Hot Springs, South Dakota gets 17.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Thermopolis averages 21.8 inches of snow per year. Hot Springs averages 29.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Thermopolis, Wyoming
Summer High: the July high is around 90.4 degrees
Winter Low: the January low is 6.5
Rain: averages 11.1 inches of rain a year
Snow: averages 21.8 inches of snow a year

Hot Springs, South Dakota
Summer High: the July high is around 89.8 degrees
Winter Low: the January low is 12.3
Rain: averages 17.8 inches of rain a year
Snow: averages 29.6 inches of snow a year

BestPlaces Comfort Index

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

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

Today's Weather - Hot Springs, SD

60°F

Today's Weather - Thermopolis, WY

62°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Hot Springs / Thermopolis

July is the hottest month for Hot Springs with an average high temperature of 89.8°, which ranks it as one of the hottest places in South Dakota. In Hot Springs, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hot Springs are September, June and May.

July is the hottest month for Thermopolis with an average high temperature of 90.4°, which ranks it as one of the hottest places in Wyoming. In Thermopolis, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Thermopolis are September, June and May.

December has the coldest nighttime temperatures for Hot Springs with an average of 11.8°. This is warmer than most places in South Dakota.

January has the coldest nighttime temperatures for Thermopolis with an average of 6.5°. This is colder than most places in Wyoming.

In Hot Springs, there are 41.9 days annually when the high temperature is over 90°, which is one of the hottest places in South Dakota.

In Thermopolis, there are 41.4 days annually when the high temperature is over 90°, which is one of the hottest places in Wyoming.

In Hot Springs, there are 172.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Dakota.

In Thermopolis, there are 181.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wyoming.

In Hot Springs, there are 16.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

In Thermopolis, there are 23.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Wyoming.

May is the wettest month in Hot Springs with 3.1 inches of rain, and the driest month is January with 0.4 inches. The wettest season is Autumn with 40% of yearly precipitation and 7% occurs in Spring, which is the driest season. The annual rainfall of 17.8 inches in Hot Springs means that it is one of the driest places in South Dakota.


May is the wettest month in Thermopolis with 1.8 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Summer with 37% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 11.1 inches in Thermopolis means that it is drier than most places in Wyoming.

May is the rainiest month in Hot Springs with 10.1 days of rain, and January is the driest month with only 3.9 rainy days. There are 76.6 rainy days annually in Hot Springs, which is less rainy than most places in South Dakota. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 16% chance of a rainy day.

May is the rainiest month in Thermopolis with 8.1 days of rain, and January is the driest month with only 3.2 rainy days. There are 60.8 rainy days annually in Thermopolis, which is less rainy than most places in Wyoming. The rainiest season is Summer when it rains 32% of the time and the driest is Spring with only a 16% chance of a rainy day.

An annual snowfall of 29.6 inches in Hot Springs means that it is one of the least snowy places in South Dakota.

An annual snowfall of 21.8 inches in Thermopolis means that it is one of the least snowy places in Wyoming.

March is the snowiest month in Hot Springs with 6.0 inches of snow, and 7 months of the year have significant snowfall.

January is the snowiest month in Thermopolis with 4.1 inches of snow, and 7 months of the year have significant snowfall.