2025 Compare Climate & Weather:
Glennallen, AK vs Boise City, ID

Highlights

On average, there are 206 sunny days per year in Boise City. Glennallen averages 133 sunny days per year. The US average is 205 sunny days.

Boise City, Idaho gets 13 inches of rain, on average, per year. Glennallen, Alaska gets 12.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Boise City averages 17.5 inches of snow per year. Glennallen averages 58.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Boise City, Idaho
Summer High: the July high is around 91.6 degrees
Winter Low: the January low is 23.7
Rain: averages 13 inches of rain a year
Snow: averages 17.5 inches of snow a year

Glennallen, Alaska
Summer High: the July high is around 69.7 degrees
Winter Low: the January low is -11.9
Rain: averages 12.3 inches of rain a year
Snow: averages 58.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Boise is 7.3 (10=best), which means it is one of the most pleasant places in Idaho.

The annual BestPlaces Comfort Index for Glennallen is 5.1 (10=best), which means it is more comfortable than most places in Alaska.

Today's Weather - Glennallen, AK

28°F

Today's Weather - Boise City, ID

58°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Glennallen / Boise City

July is the hottest month for Glennallen with an average high temperature of 69.7°, which ranks it as warmer than most places in Alaska. In Glennallen, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Glennallen are July, June and August.

July is the hottest month for Boise with an average high temperature of 91.6°, which ranks it as one of the hottest places in Idaho. In Boise, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boise are September, June and May.

January has the coldest nighttime temperatures for Glennallen with an average of -11.9°. This is colder than most places in Alaska.

December has the coldest nighttime temperatures for Boise with an average of 22.7°. This is warmer than most places in Idaho.

In Glennallen, there are 0.1 days annually when the high temperature is over 90°, which is hotter than most places in Alaska.

In Boise, there are 51.0 days annually when the high temperature is over 90°, which is one of the hottest places in Idaho.

In Glennallen, there are 243.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Alaska.

In Boise, there are 114.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Idaho.

In Glennallen, there are 97.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Alaska.

In Boise, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.

August is the wettest month in Glennallen with 1.9 inches of rain, and the driest month is April with 0.2 inches. The wettest season is Autumn with 43% of yearly precipitation and 11% occurs in Summer, which is the driest season. The annual rainfall of 12.3 inches in Glennallen means that it is drier than most places in Alaska.


December is the wettest month in Boise with 1.9 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 35% of yearly precipitation and 10% occurs in Autumn, which is the driest season. The annual rainfall of 13.0 inches in Boise means that it is about average compared to other places in Idaho.

August is the rainiest month in Glennallen with 12.7 days of rain, and April is the driest month with only 2.7 rainy days. There are 96.4 rainy days annually in Glennallen, which is less rainy than most places in Alaska. The rainiest season is Autumn when it rains 36% of the time and the driest is Summer with only a 13% chance of a rainy day.

December is the rainiest month in Boise with 11.3 days of rain, and August is the driest month with only 2.3 rainy days. There are 87.0 rainy days annually in Boise, which is less rainy than most places in Idaho. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 12% chance of a rainy day.

An annual snowfall of 58.1 inches in Glennallen means that it is less snowy than most places in Alaska.

An annual snowfall of 17.5 inches in Boise means that it is less snowy than most places in Idaho.

November is the snowiest month in Glennallen with 11.1 inches of snow, and 8 months of the year have significant snowfall.

December is the snowiest month in Boise with 6.4 inches of snow, and 5 months of the year have significant snowfall.