2025 Compare Climate & Weather:
Post Falls, ID vs Richland, WA

Highlights

On average, there are 196 sunny days per year in Richland. Post Falls averages 174 sunny days per year. The US average is 205 sunny days.

Richland, Washington gets 8.1 inches of rain, on average, per year. Post Falls, Idaho gets 22.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Richland averages 3.6 inches of snow per year. Post Falls averages 39.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Richland, Washington
Summer High: the July high is around 89.9 degrees
Winter Low: the January low is 28.7
Rain: averages 8.1 inches of rain a year
Snow: averages 3.6 inches of snow a year

Post Falls, Idaho
Summer High: the July high is around 83.1 degrees
Winter Low: the January low is 24.4
Rain: averages 22.4 inches of rain a year
Snow: averages 39.9 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Richland is 7.5 (10=best), which means it is one of the most pleasant places in Washington.

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

Today's Weather - Post Falls, ID

49°F

Today's Weather - Richland, WA

51°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Post Falls / Richland

August is the hottest month for Post Falls with an average high temperature of 83.3°, which ranks it as cooler than most places in Idaho. In Post Falls, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Post Falls are September, June and July.

July is the hottest month for Richland with an average high temperature of 89.9°, which ranks it as one of the hottest places in Washington. In Richland, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Richland are September, June and May.

December has the coldest nighttime temperatures for Post Falls with an average of 23.1°. This is one of the warmest places in Idaho.

December has the coldest nighttime temperatures for Richland with an average of 27.5°. This is colder than most places in Washington.

In Post Falls, there are 15.9 days annually when the high temperature is over 90°, which is about average compared to other places in Idaho.

In Richland, there are 39.9 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

In Post Falls, there are 132.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Idaho.

In Richland, there are 86.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Post Falls, there are 2.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.

In Richland, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

November is the wettest month in Post Falls with 3.2 inches of rain, and the driest month is August with 0.8 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 22.4 inches in Post Falls means that it is wetter than most places in Idaho.


December is the wettest month in Richland with 1.2 inches of rain, and the driest month is August with 0.2 inches. The wettest season is Spring with 38% of yearly precipitation and 14% occurs in Autumn, which is the driest season. The annual rainfall of 8.1 inches in Richland means that it is one of the driest places in Washington.

November is the rainiest month in Post Falls with 14.6 days of rain, and August is the driest month with only 4.3 rainy days. There are 118.4 rainy days annually in Post Falls, 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 15% chance of a rainy day.

January is the rainiest month in Richland with 11.5 days of rain, and August is the driest month with only 2.3 rainy days. There are 82.8 rainy days annually in Richland, which is less rainy than most places in Washington. The rainiest season is Spring when it rains 38% of the time and the driest is Autumn with only a 12% chance of a rainy day.

An annual snowfall of 39.9 inches in Post Falls means that it is about average compared to other places in Idaho.

An annual snowfall of 3.6 inches in Richland means that it is less snowy than most places in Washington.

December is the snowiest month in Post Falls with 14.6 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Richland with 1.4 inches of snow, and 3 months of the year have significant snowfall.