2025 Compare Climate & Weather:
Geneva, IL vs Jackson, TN

Highlights

On average, there are 213 sunny days per year in Jackson. Geneva averages 188 sunny days per year. The US average is 205 sunny days.

Jackson, Tennessee gets 54.3 inches of rain, on average, per year. Geneva, Illinois gets 37.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Jackson averages 4.1 inches of snow per year. Geneva averages 30 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Jackson, Tennessee
Summer High: the July high is around 90.5 degrees
Winter Low: the January low is 27.6
Rain: averages 54.3 inches of rain a year
Snow: averages 4.1 inches of snow a year

Geneva, Illinois
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 14.7
Rain: averages 37.7 inches of rain a year
Snow: averages 30 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Jackson is 7.1 (10=best), which means it is less comfortable than most places in Tennessee.

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

Today's Weather - Geneva, IL

61°F

Today's Weather - Jackson, TN

64°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Geneva / Jackson

July is the hottest month for Geneva with an average high temperature of 84.2°, which ranks it as cooler than most places in Illinois. In Geneva, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Geneva are June, September and August.

July is the hottest month for Jackson with an average high temperature of 90.5°, which ranks it as one of the hottest places in Tennessee. In Jackson, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Jackson are May, October and September.

January has the coldest nighttime temperatures for Geneva with an average of 14.7°. This is colder than most places in Illinois.

January has the coldest nighttime temperatures for Jackson with an average of 27.6°. This is warmer than most places in Tennessee.

In Geneva, there are 11.9 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In Jackson, there are 51.9 days annually when the high temperature is over 90°, which is one of the hottest places in Tennessee.

In Geneva, there are 130.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Jackson, there are 75.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In Geneva, there are 9.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

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

August is the wettest month in Geneva with 4.4 inches of rain, and the driest month is January with 1.6 inches. The wettest season is Autumn with 33% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 37.7 inches in Geneva means that it is drier than most places in Illinois.


May is the wettest month in Jackson 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 54.3 inches in Jackson means that it is wetter than most places in Tennessee.

May is the rainiest month in Geneva with 12.2 days of rain, and February is the driest month with only 7.7 rainy days. There are 119.5 rainy days annually in Geneva, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 23% chance of a rainy day.

May is the rainiest month in Jackson with 10.7 days of rain, and August is the driest month with only 6.6 rainy days. There are 111.6 rainy days annually in Jackson, which is less rainy than most places in Tennessee. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 22% chance of a rainy day.

An annual snowfall of 30.0 inches in Geneva means that it is snowier than most places in Illinois.

An annual snowfall of 4.1 inches in Jackson means that it is about average compared to other places in Tennessee.

January is the snowiest month in Geneva with 9.6 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Jackson with 1.7 inches of snow, and 3 months of the year have significant snowfall.