2025 Compare Climate & Weather:
Hayden, ID vs Knoxville, TN

Highlights

On average, there are 204 sunny days per year in Knoxville. Hayden averages 172 sunny days per year. The US average is 205 sunny days.

Knoxville, Tennessee gets 50.3 inches of rain, on average, per year. Hayden, Idaho gets 25.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Knoxville averages 5.8 inches of snow per year. Hayden averages 42.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Knoxville, Tennessee
Summer High: the July high is around 88.1 degrees
Winter Low: the January low is 27.9
Rain: averages 50.3 inches of rain a year
Snow: averages 5.8 inches of snow a year

Hayden, Idaho
Summer High: the July high is around 81.5 degrees
Winter Low: the January low is 23.5
Rain: averages 25.6 inches of rain a year
Snow: averages 42.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Knoxville is 7.4 (10=best), which means it is more comfortable than most places in Tennessee.

The annual BestPlaces Comfort Index for Hayden is 6.7 (10=best), which means it is more comfortable than most places in Idaho.

Today's Weather - Hayden, ID

43°F

Today's Weather - Knoxville, TN

59°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Hayden / Knoxville

August is the hottest month for Hayden with an average high temperature of 81.6°, which ranks it as cooler than most places in Idaho. In Hayden, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hayden are July, August and June.

July is the hottest month for Knoxville with an average high temperature of 88.1°, which ranks it as cooler than most places in Tennessee. In Knoxville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Knoxville are May, September and October.

December has the coldest nighttime temperatures for Hayden with an average of 22.9°. This is warmer than most places in Idaho.

January has the coldest nighttime temperatures for Knoxville with an average of 27.9°. This is warmer than most places in Tennessee.

In Hayden, there are 11.8 days annually when the high temperature is over 90°, which is cooler than most places in Idaho.

In Knoxville, there are 29.7 days annually when the high temperature is over 90°, which is cooler than most places in Tennessee.

In Hayden, there are 139.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Idaho.

In Knoxville, there are 78.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In Hayden, there are 2.4 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.

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

November is the wettest month in Hayden with 3.6 inches of rain, and the driest month is August with 0.9 inches. The wettest season is Spring with 33% of yearly precipitation and 15% occurs in Autumn, which is the driest season. The annual rainfall of 25.6 inches in Hayden means that it is wetter than most places in Idaho.


July is the wettest month in Knoxville with 5.2 inches of rain, and the driest month is October with 2.7 inches. The wettest season is Spring with 28% of yearly precipitation and 21% occurs in Winter, which is the driest season. The annual rainfall of 50.3 inches in Knoxville means that it is drier than most places in Tennessee.

November is the rainiest month in Hayden with 14.3 days of rain, and August is the driest month with only 4.4 rainy days. There are 116.6 rainy days annually in Hayden, which is rainier than most places in Idaho. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 16% chance of a rainy day.

March is the rainiest month in Knoxville with 12.0 days of rain, and September is the driest month with only 8.1 rainy days. There are 127.3 rainy days annually in Knoxville, which is rainier than most places in Tennessee. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

An annual snowfall of 42.5 inches in Hayden means that it is about average compared to other places in Idaho.

An annual snowfall of 5.8 inches in Knoxville means that it is snowier than most places in Tennessee.

December is the snowiest month in Hayden with 15.9 inches of snow, and 5 months of the year have significant snowfall.

January is the snowiest month in Knoxville with 2.4 inches of snow, and 4 months of the year have significant snowfall.