2025 Compare Climate & Weather:
Priest River, ID vs Thermopolis, WY

Highlights

On average, there are 235 sunny days per year in Thermopolis. Priest River averages 174 sunny days per year. The US average is 205 sunny days.

Thermopolis, Wyoming gets 11.1 inches of rain, on average, per year. Priest River, Idaho gets 30.6 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. Priest River averages 61.5 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

Priest River, Idaho
Summer High: the July high is around 82.4 degrees
Winter Low: the January low is 21.1
Rain: averages 30.6 inches of rain a year
Snow: averages 61.5 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 Priest River is 6.4 (10=best), which means it is less comfortable than most places in Idaho.

Today's Weather - Priest River, ID

67°F

Today's Weather - Thermopolis, WY

44°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Priest River / Thermopolis

July is the hottest month for Priest River with an average high temperature of 82.4°, which ranks it as cooler than most places in Idaho. In Priest River, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Priest River are August, July and June.

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 Priest River with an average of 20.5°. This is warmer than most places in Idaho.

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

In Priest River, there are 12.9 days annually when the high temperature is over 90°, which is cooler than most places in Idaho.

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 Priest River, there are 169.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Idaho.

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 Priest River, there are 4.3 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Idaho.

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

December is the wettest month in Priest River with 4.2 inches of rain, and the driest month is August with 1.0 inches. The wettest season is Spring with 34% of yearly precipitation and 16% occurs in Autumn, which is the driest season. The annual rainfall of 30.6 inches in Priest River means that it is one of the wettest places in Idaho.


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.

November is the rainiest month in Priest River with 14.5 days of rain, and August is the driest month with only 5.0 rainy days. There are 126.1 rainy days annually in Priest River, which is rainier than most places in Idaho. The rainiest season is Spring when it rains 31% of the time and the driest is Autumn with only a 17% 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 61.5 inches in Priest River means that it is snowier than most places in Idaho.

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

December is the snowiest month in Priest River with 22.8 inches of snow, and 5 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.