Climate in Idaho Falls, ID

Idaho Falls, ID has a unique climate with four distinct seasons. The summers are typically hot and dry, with temperatures easily reaching into the 90s or higher. Spring and fall bring cooler temperatures and light precipitation. Winters are cold with occasional snowfall and temperatures dipping into the teens, and sometimes even single digits. Idaho Falls is quite windy year-round due to its close proximity to the Rocky Mountains. It also experiences cold snaps in the winter months, so be sure to pack plenty of warm layers if you’re visiting!

Idaho Falls, Idaho gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Idaho Falls averages 39 inches of snow per year. The US average is 28 inches of snow per year.

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

Idaho Falls gets some kind of precipitation, on average, 93 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

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Weather Highlights

Summer High: the July high is around 86 degrees
Winter Low: the January low is 13
Rain: averages 12 inches of rain a year
Snow: averages 39 inches of snow a year

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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.

June, July and September are the most pleasant months in Idaho Falls, while December and January are the least comfortable months.

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.

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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.

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

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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.

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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.

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Humidity is low in Idaho Falls, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.

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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.

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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.

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An annual snowfall of 38.9 inches in Idaho Falls means that it is less snowy than most places in Idaho. December is the snowiest month in Idaho Falls with 10.9 inches of snow, and 7 months of the year have significant snowfall.

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