2025 Compare Climate & Weather:
Gaston, IN vs Charlestown, IN

Highlights

On average, there are 193 sunny days per year in Charlestown. Gaston averages 179 sunny days per year. The US average is 205 sunny days.

Charlestown, Indiana gets 46.3 inches of rain, on average, per year. Gaston, Indiana gets 40.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Charlestown averages 10.8 inches of snow per year. Gaston averages 24 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Charlestown, Indiana
Summer High: the July high is around 86 degrees
Winter Low: the January low is 22.6
Rain: averages 46.3 inches of rain a year
Snow: averages 10.8 inches of snow a year

Gaston, Indiana
Summer High: the July high is around 84.1 degrees
Winter Low: the January low is 18.4
Rain: averages 40.7 inches of rain a year
Snow: averages 24 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Charlestown is 7.3 (10=best), which means it is one of the most pleasant places in Indiana.

The annual BestPlaces Comfort Index for Gaston is 7.0 (10=best), which means it is about average compared to other places in Indiana.

Today's Weather - Gaston, IN

62°F

Today's Weather - Charlestown, IN

63°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Gaston / Charlestown

July is the hottest month for Gaston with an average high temperature of 84.1°, which ranks it as about average compared to other places in Indiana. In Gaston, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Gaston are September, June and August.

August is the hottest month for Charlestown with an average high temperature of 86.0°, which ranks it as warmer than most places in Indiana. In Charlestown, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Charlestown are September, May and June.

January has the coldest nighttime temperatures for Gaston with an average of 18.4°. This is about average compared to other places in Indiana.

January has the coldest nighttime temperatures for Charlestown with an average of 22.6°. This is one of the warmest places in Indiana.

In Gaston, there are 12.2 days annually when the high temperature is over 90°, which is about average compared to other places in Indiana.

In Charlestown, there are 21.6 days annually when the high temperature is over 90°, which is hotter than most places in Indiana.

In Gaston, there are 117.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Indiana.

In Charlestown, there are 103.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Indiana.

In Gaston, there are 6.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Indiana.

In Charlestown, there are 2.1 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Indiana.

June is the wettest month in Gaston with 4.6 inches of rain, and the driest month is February with 2.3 inches. The wettest season is Autumn with 30% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 40.7 inches in Gaston means that it is drier than most places in Indiana.


May is the wettest month in Charlestown with 5.3 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Summer with 29% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 46.3 inches in Charlestown means that it is wetter than most places in Indiana.

May is the rainiest month in Gaston with 12.4 days of rain, and September is the driest month with only 8.3 rainy days. There are 124.8 rainy days annually in Gaston, which is rainier than most places in Indiana. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

May is the rainiest month in Charlestown with 10.8 days of rain, and September is the driest month with only 6.8 rainy days. There are 103.8 rainy days annually in Charlestown, which is one of the least rainy places in Indiana. The rainiest season is Summer when it rains 30% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 24.0 inches in Gaston means that it is snowier than most places in Indiana.

An annual snowfall of 10.8 inches in Charlestown means that it is one of the least snowy places in Indiana.

January is the snowiest month in Gaston with 7.4 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Charlestown with 3.2 inches of snow, and 4 months of the year have significant snowfall.