2025 Compare Climate & Weather:
Astoria, OR vs Caldwell, ID

Highlights

On average, there are 211 sunny days per year in Caldwell. Astoria averages 127 sunny days per year. The US average is 205 sunny days.

Caldwell, Idaho gets 10.7 inches of rain, on average, per year. Astoria, Oregon gets 85.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Caldwell averages 8 inches of snow per year. Astoria averages 1.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Caldwell, Idaho
Summer High: the July high is around 91.7 degrees
Winter Low: the January low is 23.3
Rain: averages 10.7 inches of rain a year
Snow: averages 8 inches of snow a year

Astoria, Oregon
Summer High: the July high is around 67.2 degrees
Winter Low: the January low is 37.8
Rain: averages 85.9 inches of rain a year
Snow: averages 1.3 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Astoria is 6.9 (10=best), which means it is less comfortable than most places in Oregon.

Today's Weather - Astoria, OR

48°F

Today's Weather - Caldwell, ID

56°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Astoria / Caldwell

August is the hottest month for Astoria with an average high temperature of 68.2°, which ranks it as one of the coolest places in Oregon. In Astoria, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Astoria are August, September and July.

July is the hottest month for Caldwell with an average high temperature of 91.7°, which ranks it as one of the hottest places in Idaho. In Caldwell, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Caldwell are September, May and June.

December has the coldest nighttime temperatures for Astoria with an average of 37.1°. This is one of the warmest places in Oregon.

December has the coldest nighttime temperatures for Caldwell with an average of 22.6°. This is warmer than most places in Idaho.

In Astoria, there are 0.3 days annually when the high temperature is over 90°, which is one of the coolest places in Oregon.

In Caldwell, there are 50.8 days annually when the high temperature is over 90°, which is one of the hottest places in Idaho.

In Astoria, there are 25.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Caldwell, there are 116.0 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Idaho.

In Astoria, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Oregon.

In Caldwell, there are 2.6 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.

November is the wettest month in Astoria with 14.3 inches of rain, and the driest month is July with 1.3 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 85.9 inches in Astoria means that it is one of the wettest places in Oregon.


December is the wettest month in Caldwell with 1.5 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 33% of yearly precipitation and 12% occurs in Autumn, which is the driest season. The annual rainfall of 10.7 inches in Caldwell means that it is drier than most places in Idaho.

January is the rainiest month in Astoria with 21.7 days of rain, and August is the driest month with only 7.3 rainy days. There are 190.4 rainy days annually in Astoria, which is one of the rainiest places in Oregon. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 15% chance of a rainy day.

December is the rainiest month in Caldwell with 10.3 days of rain, and July is the driest month with only 2.3 rainy days. There are 80.0 rainy days annually in Caldwell, which is less rainy than most places in Idaho. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 12% chance of a rainy day.

An annual snowfall of 1.3 inches in Astoria means that it is less snowy than most places in Oregon.

An annual snowfall of 8.0 inches in Caldwell means that it is one of the least snowy places in Idaho.

February is the snowiest month in Astoria with 0.5 inches of snow, and 1 month of the year have significant snowfall.

December is the snowiest month in Caldwell with 3.8 inches of snow, and 4 months of the year have significant snowfall.