2025 Compare Climate & Weather:
St. George, UT vs Post Falls, ID

Highlights

On average, there are 174 sunny days per year in Post Falls. St. George averages 255 sunny days per year. The US average is 205 sunny days.

Post Falls, Idaho gets 22.4 inches of rain, on average, per year. St. George, Utah gets 10 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Post Falls averages 39.9 inches of snow per year. St. George averages 1.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

St. George, Utah
Summer High: the July high is around 101.2 degrees
Winter Low: the January low is 28.9
Rain: averages 10 inches of rain a year
Snow: averages 1.5 inches of snow a year

BestPlaces Comfort Index

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

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

Today's Weather - St. George, UT

76°F

Today's Weather - Post Falls, ID

56°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: St. George / Post Falls

July is the hottest month for St. George with an average high temperature of 101.2°, which ranks it as one of the hottest places in Utah. In St. George, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. George are October, April and May.

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.

December has the coldest nighttime temperatures for St. George with an average of 28.1°. This is one of the warmest places in Utah.

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

In St. George, there are 118.3 days annually when the high temperature is over 90°, which is one of the hottest places in Utah.

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 St. George, there are 76.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Utah.

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 St. George, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Utah.

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.

February is the wettest month in St. George with 1.5 inches of rain, and the driest month is June with 0.2 inches. The wettest season is Spring with 39% of yearly precipitation and 16% occurs in Autumn, which is the driest season. The annual rainfall of 10.0 inches in St. George means that it is drier than most places in Utah.


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.

February is the rainiest month in St. George with 5.9 days of rain, and June is the driest month with only 1.4 rainy days. There are 42.6 rainy days annually in St. George, which is one of the least rainy places in Utah. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 18% chance of a rainy day.

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.

An annual snowfall of 1.5 inches in St. George means that it is one of the least snowy places in Utah.

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

January is the snowiest month in St. George with 0.5 inches of snow, and 1 month of the year have significant snowfall.

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