2025 Compare Climate & Weather:
Eureka, MT vs Delta Junction, AK

Highlights

On average, there are 151 sunny days per year in Delta Junction. Eureka averages 152 sunny days per year. The US average is 205 sunny days.

Delta Junction, Alaska gets 12.2 inches of rain, on average, per year. Eureka, Montana gets 17 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Delta Junction averages 46 inches of snow per year. Eureka averages 49.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Delta Junction, Alaska
Summer High: the July high is around 71 degrees
Winter Low: the January low is -11.5
Rain: averages 12.2 inches of rain a year
Snow: averages 46 inches of snow a year

Eureka, Montana
Summer High: the July high is around 83.2 degrees
Winter Low: the January low is 16.5
Rain: averages 17 inches of rain a year
Snow: averages 49.3 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Eureka is 6.4 (10=best), which means it is less comfortable than most places in Montana.

Today's Weather - Eureka, MT

42°F

Today's Weather - Delta Junction, AK

40°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Eureka / Delta Junction

July is the hottest month for Eureka with an average high temperature of 83.2°, which ranks it as cooler than most places in Montana. In Eureka, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Eureka are June, August and July.

July is the hottest month for Delta Junction with an average high temperature of 71.0°, which ranks it as warmer than most places in Alaska. In Delta Junction, there are 1 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Delta Junction are July, June and August.

December has the coldest nighttime temperatures for Eureka with an average of 15.6°. This is warmer than most places in Montana.

January has the coldest nighttime temperatures for Delta Junction with an average of -11.5°. This is colder than most places in Alaska.

In Eureka, there are 17.1 days annually when the high temperature is over 90°, which is about average compared to other places in Montana.

In Delta Junction, there are 0.2 days annually when the high temperature is over 90°, which is one of the hottest places in Alaska.

In Eureka, there are 181.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Montana.

In Delta Junction, there are 236.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Alaska.

In Eureka, there are 12.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Montana.

In Delta Junction, there are 97.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Alaska.

June is the wettest month in Eureka with 2.5 inches of rain, and the driest month is February with 0.9 inches. The wettest season is Autumn with 30% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 17.0 inches in Eureka means that it is wetter than most places in Montana.


July is the wettest month in Delta Junction with 2.7 inches of rain, and the driest month is March with 0.2 inches. The wettest season is Autumn with 56% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 12.2 inches in Delta Junction means that it is drier than most places in Alaska.

June is the rainiest month in Eureka with 11.0 days of rain, and August is the driest month with only 5.4 rainy days. There are 102.5 rainy days annually in Eureka, which is rainier than most places in Montana. The rainiest season is Spring when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.

July is the rainiest month in Delta Junction with 14.1 days of rain, and April is the driest month with only 3.1 rainy days. There are 92.7 rainy days annually in Delta Junction, which is less rainy than most places in Alaska. The rainiest season is Autumn when it rains 42% of the time and the driest is Summer with only a 16% chance of a rainy day.

An annual snowfall of 49.3 inches in Eureka means that it is snowier than most places in Montana.

An annual snowfall of 46.0 inches in Delta Junction means that it is less snowy than most places in Alaska.

December is the snowiest month in Eureka with 12.9 inches of snow, and 7 months of the year have significant snowfall.

October is the snowiest month in Delta Junction with 9.8 inches of snow, and 9 months of the year have significant snowfall.