2025 Compare Climate & Weather:
Chambersburg, PA vs Geneva, IL

Highlights

On average, there are 188 sunny days per year in Geneva. Chambersburg averages 200 sunny days per year. The US average is 205 sunny days.

Geneva, Illinois gets 37.7 inches of rain, on average, per year. Chambersburg, Pennsylvania gets 40.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Geneva averages 30 inches of snow per year. Chambersburg averages 30.8 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Chambersburg, Pennsylvania
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 22.7
Rain: averages 40.6 inches of rain a year
Snow: averages 30.8 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Chambersburg is 7.2 (10=best), which means it is one of the most pleasant places in Pennsylvania.

Today's Weather - Chambersburg, PA

45°F

Today's Weather - Geneva, IL

45°F

Average Monthly High / Low (°F)

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

July is the hottest month for Chambersburg with an average high temperature of 85.3°, which ranks it as warmer than most places in Pennsylvania. In Chambersburg, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chambersburg are September, June and August.

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.

January has the coldest nighttime temperatures for Chambersburg with an average of 22.7°. This is one of the warmest places in Pennsylvania.

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

In Chambersburg, there are 16.2 days annually when the high temperature is over 90°, which is hotter than most places in Pennsylvania.

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

In Chambersburg, there are 104.4 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Pennsylvania.

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 Chambersburg, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Pennsylvania.

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

May is the wettest month in Chambersburg with 4.1 inches of rain, and the driest month is February with 2.6 inches. The wettest season is Summer with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 40.6 inches in Chambersburg means that it is drier than most places in Pennsylvania.


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 rainiest month in Chambersburg with 12.5 days of rain, and October is the driest month with only 8.7 rainy days. There are 120.1 rainy days annually in Chambersburg, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

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.

An annual snowfall of 30.8 inches in Chambersburg means that it is about average compared to other places in Pennsylvania.

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

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

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