2025 Compare Climate & Weather:
Foresthill, CA vs Ione, WA

Highlights

On average, there are 173 sunny days per year in Ione. Foresthill averages 251 sunny days per year. The US average is 205 sunny days.

Ione, Washington gets 23.7 inches of rain, on average, per year. Foresthill, California gets 54 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Ione averages 50.4 inches of snow per year. Foresthill averages 13.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Ione, Washington
Summer High: the July high is around 85.4 degrees
Winter Low: the January low is 22.1
Rain: averages 23.7 inches of rain a year
Snow: averages 50.4 inches of snow a year

Foresthill, California
Summer High: the July high is around 89.9 degrees
Winter Low: the January low is 36.4
Rain: averages 54 inches of rain a year
Snow: averages 13.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Ione is 6.6 (10=best), which means it is one of the least comfortable places in Washington.

The annual BestPlaces Comfort Index for Foresthill is 7.9 (10=best), which means it is less comfortable than most places in California.

Today's Weather - Foresthill, CA

76°F

Today's Weather - Ione, WA

64°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Foresthill / Ione

July is the hottest month for Foresthill with an average high temperature of 89.9°, which ranks it as about average compared to other places in California. In Foresthill, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Foresthill are June, October and May.

August is the hottest month for Ione with an average high temperature of 86.1°, which ranks it as warmer than most places in Washington. In Ione, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ione are June, September and July.

December has the coldest nighttime temperatures for Foresthill with an average of 35.4°. This is colder than most places in California.

December has the coldest nighttime temperatures for Ione with an average of 21.4°. This is colder than most places in Washington.

In Foresthill, there are 48.9 days annually when the high temperature is over 90°, which is about average compared to other places in California.

In Ione, there are 28.0 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Foresthill, there are 36.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Ione, there are 138.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

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

In Ione, there are 3.5 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Washington.

December is the wettest month in Foresthill with 9.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 51% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 54.0 inches in Foresthill means that it is one of the wettest places in California.


December is the wettest month in Ione with 2.9 inches of rain, and the driest month is August with 1.1 inches. The wettest season is Spring with 30% of yearly precipitation and 22% occurs in Autumn, which is the driest season. The annual rainfall of 23.7 inches in Ione means that it is drier than most places in Washington.

January is the rainiest month in Foresthill with 10.7 days of rain, and July is the driest month with only 0.3 rainy days. There are 74.0 rainy days annually in Foresthill, which is rainier than most places in California. The rainiest season is Spring when it rains 43% of the time and the driest is Autumn with only a 5% chance of a rainy day.

November is the rainiest month in Ione with 13.7 days of rain, and August is the driest month with only 5.4 rainy days. There are 122.0 rainy days annually in Ione, which is less rainy than most places in Washington. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 19% chance of a rainy day.

An annual snowfall of 13.5 inches in Foresthill means that it is snowier than most places in California.

An annual snowfall of 50.4 inches in Ione means that it is one of the snowiest places in Washington.

February is the snowiest month in Foresthill with 4.4 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Ione with 19.5 inches of snow, and 5 months of the year have significant snowfall.