2025 Compare Climate & Weather:
Harrisburg, PA vs Idaho Falls, ID

Highlights

On average, there are 201 sunny days per year in Idaho Falls. Harrisburg averages 193 sunny days per year. The US average is 205 sunny days.

Idaho Falls, Idaho gets 12.2 inches of rain, on average, per year. Harrisburg, Pennsylvania gets 41.8 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. Harrisburg averages 25.8 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

Harrisburg, Pennsylvania
Summer High: the July high is around 85.1 degrees
Winter Low: the January low is 22.4
Rain: averages 41.8 inches of rain a year
Snow: averages 25.8 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 Harrisburg is 7.2 (10=best), which means it is one of the most pleasant places in Pennsylvania.

Today's Weather - Harrisburg, PA

81°F

Today's Weather - Idaho Falls, ID

64°F

Average Monthly High / Low (°F)

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

July is the hottest month for Harrisburg with an average high temperature of 85.1°, which ranks it as warmer than most places in Pennsylvania. In Harrisburg, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Harrisburg are September, June and August.

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 Harrisburg with an average of 22.4°. This is one of the warmest places in Pennsylvania.

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

In Harrisburg, there are 13.8 days annually when the high temperature is over 90°, which is hotter than most places in Pennsylvania.

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 Harrisburg, there are 105.1 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Pennsylvania.

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 Harrisburg, there are 0.5 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Pennsylvania.

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.

July is the wettest month in Harrisburg with 4.2 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 41.8 inches in Harrisburg means that it is drier than most places in Pennsylvania.


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.

May is the rainiest month in Harrisburg with 12.6 days of rain, and September is the driest month with only 8.9 rainy days. There are 122.4 rainy days annually in Harrisburg, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% 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 25.8 inches in Harrisburg means that it is less snowy than most places in Pennsylvania.

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

February is the snowiest month in Harrisburg with 8.3 inches of snow, and 6 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.