2025 Compare Climate & Weather:
Clarksville, TN vs Eureka, CA

Highlights

On average, there are 179 sunny days per year in Eureka. Clarksville averages 210 sunny days per year. The US average is 205 sunny days.

Eureka, California gets 45.7 inches of rain, on average, per year. Clarksville, Tennessee gets 51 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Eureka averages 0.5 inches of snow per year. Clarksville averages 4.7 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Eureka, California
Summer High: the July high is around 65 degrees
Winter Low: the January low is 41.1
Rain: averages 45.7 inches of rain a year
Snow: averages 0.5 inches of snow a year

Clarksville, Tennessee
Summer High: the July high is around 89.4 degrees
Winter Low: the January low is 26.5
Rain: averages 51 inches of rain a year
Snow: averages 4.7 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Eureka is 7.6 (10=best), which means it is less comfortable than most places in California.

The annual BestPlaces Comfort Index for Clarksville is 7.3 (10=best), which means it is about average compared to other places in Tennessee.

Today's Weather - Clarksville, TN

68°F

Today's Weather - Eureka, CA

48°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Clarksville / Eureka

July is the hottest month for Clarksville with an average high temperature of 89.4°, which ranks it as warmer than most places in Tennessee. In Clarksville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Clarksville are May, September and October.

August is the hottest month for Eureka with an average high temperature of 66.1°, which ranks it as one of the coolest places in California. In Eureka, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Eureka are August, September and July.

January has the coldest nighttime temperatures for Clarksville with an average of 26.5°. This is about average compared to other places in Tennessee.

December has the coldest nighttime temperatures for Eureka with an average of 40.5°. This is warmer than most places in California.

In Clarksville, there are 42.0 days annually when the high temperature is over 90°, which is hotter than most places in Tennessee.

In Eureka, there are 0.2 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Clarksville, there are 81.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In Eureka, there are 9.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Clarksville, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Tennessee.

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

May is the wettest month in Clarksville with 5.8 inches of rain, and the driest month is August with 3.1 inches. The wettest season is Summer with 29% of yearly precipitation and 23% occurs in Autumn, which is the driest season. The annual rainfall of 51.0 inches in Clarksville means that it is drier than most places in Tennessee.


December is the wettest month in Eureka with 8.8 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Spring with 50% of yearly precipitation and 3% occurs in Autumn, which is the driest season. The annual rainfall of 45.7 inches in Eureka means that it is one of the wettest places in California.

May is the rainiest month in Clarksville with 11.6 days of rain, and August is the driest month with only 7.4 rainy days. There are 117.0 rainy days annually in Clarksville, which is about average compared to other places in Tennessee. The rainiest season is Summer when it rains 29% of the time and the driest is Autumn with only a 22% chance of a rainy day.

December is the rainiest month in Eureka with 17.0 days of rain, and July is the driest month with only 2.4 rainy days. There are 123.9 rainy days annually in Eureka, which is one of the rainiest places in California. The rainiest season is Spring when it rains 39% of the time and the driest is Autumn with only a 8% chance of a rainy day.

An annual snowfall of 4.7 inches in Clarksville means that it is snowier than most places in Tennessee.

An annual snowfall of 0.5 inches in Eureka means that it is snowier than most places in California.

February is the snowiest month in Clarksville with 1.9 inches of snow, and 4 months of the year have significant snowfall.

February is the snowiest month in Eureka with 0.3 inches of snow, and no months of the year have significant snowfall.