2025 Compare Climate & Weather:
Oroville, WA vs Chelan, WA

Highlights

On average, there are 196 sunny days per year in Chelan. Oroville averages 189 sunny days per year. The US average is 205 sunny days.

Chelan, Washington gets 12.4 inches of rain, on average, per year. Oroville, Washington gets 14.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Chelan averages 33.8 inches of snow per year. Oroville averages 56.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Chelan, Washington
Summer High: the July high is around 86.3 degrees
Winter Low: the January low is 22.3
Rain: averages 12.4 inches of rain a year
Snow: averages 33.8 inches of snow a year

Oroville, Washington
Summer High: the July high is around 87.5 degrees
Winter Low: the January low is 21.3
Rain: averages 14.8 inches of rain a year
Snow: averages 56.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Chelan is 7.1 (10=best), which means it is about average compared to other places in Washington.

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

Today's Weather - Oroville, WA

78°F

Today's Weather - Chelan, WA

78°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Oroville / Chelan

July is the hottest month for Oroville with an average high temperature of 87.5°, which ranks it as warmer than most places in Washington. In Oroville, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Oroville are September, June and May.

August is the hottest month for Chelan with an average high temperature of 86.6°, which ranks it as warmer than most places in Washington. In Chelan, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chelan are June, September and May.

December has the coldest nighttime temperatures for Oroville with an average of 20.6°. This is one of the coldest places in Washington.

December has the coldest nighttime temperatures for Chelan with an average of 21.8°. This is colder than most places in Washington.

In Oroville, there are 29.8 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Chelan, there are 27.3 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Oroville, there are 138.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Chelan, there are 122.8 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Oroville, there are 3.3 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Washington.

In Chelan, there are 2.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

December is the wettest month in Oroville with 2.3 inches of rain, and the driest month is August with 0.5 inches. The wettest season is Spring with 38% of yearly precipitation and 17% occurs in Autumn, which is the driest season. The annual rainfall of 14.8 inches in Oroville means that it is drier than most places in Washington.


December is the wettest month in Chelan with 1.9 inches of rain, and the driest month is August with 0.3 inches. The wettest season is Spring with 39% of yearly precipitation and 13% occurs in Autumn, which is the driest season. The annual rainfall of 12.4 inches in Chelan means that it is drier than most places in Washington.

December is the rainiest month in Oroville with 12.7 days of rain, and August is the driest month with only 4.1 rainy days. There are 93.8 rainy days annually in Oroville, which is less rainy than most places in Washington. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 18% chance of a rainy day.

December is the rainiest month in Chelan with 9.1 days of rain, and August is the driest month with only 2.2 rainy days. There are 69.4 rainy days annually in Chelan, which is one of the least rainy places in Washington. The rainiest season is Spring when it rains 36% of the time and the driest is Autumn with only a 15% chance of a rainy day.

An annual snowfall of 56.5 inches in Oroville means that it is one of the snowiest places in Washington.

An annual snowfall of 33.8 inches in Chelan means that it is snowier than most places in Washington.

December is the snowiest month in Oroville with 22.3 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Chelan with 13.7 inches of snow, and 5 months of the year have significant snowfall.