2025 Compare Climate & Weather:
Afton, WY vs Idaho Falls, ID

Highlights

On average, there are 201 sunny days per year in Idaho Falls. Afton averages 208 sunny days per year. The US average is 205 sunny days.

Idaho Falls, Idaho gets 12.2 inches of rain, on average, per year. Afton, Wyoming gets 19.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Idaho Falls averages 38.9 inches of snow per year. Afton averages 86.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Idaho Falls, Idaho
Summer High: the July high is around 86.2 degrees
Winter Low: the January low is 12.9
Rain: averages 12.2 inches of rain a year
Snow: averages 38.9 inches of snow a year

Afton, Wyoming
Summer High: the July high is around 81.1 degrees
Winter Low: the January low is 5.1
Rain: averages 19.1 inches of rain a year
Snow: averages 86.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Idaho Falls is 6.7 (10=best), which means it is more comfortable than most places in Idaho.

The annual BestPlaces Comfort Index for Afton is 5.9 (10=best), which means it is less comfortable than most places in Wyoming.

Today's Weather - Afton, WY

61°F

Today's Weather - Idaho Falls, ID

67°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Afton / Idaho Falls

July is the hottest month for Afton with an average high temperature of 81.1°, which ranks it as cooler than most places in Wyoming. In Afton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Afton are August, July and June.

July is the hottest month for Idaho Falls with an average high temperature of 86.2°, which ranks it as warmer than most places in Idaho. In Idaho Falls, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Idaho Falls are June, September and August.

January has the coldest nighttime temperatures for Afton with an average of 5.1°. This is colder than most places in Wyoming.

January has the coldest nighttime temperatures for Idaho Falls with an average of 12.9°. This is colder than most places in Idaho.

In Afton, there are 3.4 days annually when the high temperature is over 90°, which is cooler than most places in Wyoming.

In Idaho Falls, there are 20.2 days annually when the high temperature is over 90°, which is about average compared to other places in Idaho.

In Afton, there are 221.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Wyoming.

In Idaho Falls, there are 172.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Idaho.

In Afton, there are 34.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Wyoming.

In Idaho Falls, there are 10.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.

May is the wettest month in Afton with 2.3 inches of rain, and the driest month is July with 1.2 inches. The wettest season is Summer with 28% of yearly precipitation and 22% occurs in Autumn, which is the driest season. The annual rainfall of 19.1 inches in Afton means that it is one of the wettest places in Wyoming.


May is the wettest month in Idaho Falls with 1.7 inches of rain, and the driest month is July with 0.6 inches. The wettest season is Summer with 34% of yearly precipitation and 20% occurs in Autumn, which is the driest season. The annual rainfall of 12.2 inches in Idaho Falls means that it is drier than most places in Idaho.

December is the rainiest month in Afton with 11.8 days of rain, and August is the driest month with only 6.1 rainy days. There are 109.2 rainy days annually in Afton, which is one of the rainiest places in Wyoming. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 19% chance of a rainy day.

January is the rainiest month in Idaho Falls with 10.5 days of rain, and July is the driest month with only 4.6 rainy days. There are 93.3 rainy days annually in Idaho Falls, which is about average compared to other places in Idaho. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 19% chance of a rainy day.

An annual snowfall of 86.5 inches in Afton means that it is one of the snowiest places in Wyoming.

An annual snowfall of 38.9 inches in Idaho Falls means that it is less snowy than most places in Idaho.

January is the snowiest month in Afton with 20.9 inches of snow, and 8 months of the year have significant snowfall.

December is the snowiest month in Idaho Falls with 10.9 inches of snow, and 7 months of the year have significant snowfall.