2025 Compare Climate & Weather:
Windsor, CT vs Greenville, SC

Highlights

On average, there are 220 sunny days per year in Greenville. Windsor averages 190 sunny days per year. The US average is 205 sunny days.

Greenville, South Carolina gets 50.9 inches of rain, on average, per year. Windsor, Connecticut gets 49 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Greenville averages 2.5 inches of snow per year. Windsor averages 37 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Greenville, South Carolina
Summer High: the July high is around 89.8 degrees
Winter Low: the January low is 30.9
Rain: averages 50.9 inches of rain a year
Snow: averages 2.5 inches of snow a year

Windsor, Connecticut
Summer High: the July high is around 84 degrees
Winter Low: the January low is 17.8
Rain: averages 49 inches of rain a year
Snow: averages 37 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Greenville is 7.5 (10=best), which means it is one of the most pleasant places in South Carolina.

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

Today's Weather - Windsor, CT

63°F

Today's Weather - Greenville, SC

76°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Windsor / Greenville

July is the hottest month for Windsor with an average high temperature of 84.0°, which ranks it as warmer than most places in Connecticut. In Windsor, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Windsor are June, September and August.

July is the hottest month for Greenville with an average high temperature of 89.8°, which ranks it as cooler than most places in South Carolina. In Greenville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Greenville are May, September and October.

January has the coldest nighttime temperatures for Windsor with an average of 17.8°. This is about average compared to other places in Connecticut.

January has the coldest nighttime temperatures for Greenville with an average of 30.9°. This is colder than most places in South Carolina.

In Windsor, there are 12.4 days annually when the high temperature is over 90°, which is one of the hottest places in Connecticut.

In Greenville, there are 40.6 days annually when the high temperature is over 90°, which is cooler than most places in South Carolina.

In Windsor, there are 124.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Connecticut.

In Greenville, there are 57.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Carolina.

In Windsor, there are 2.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Connecticut.

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

October is the wettest month in Windsor with 4.7 inches of rain, and the driest month is February with 3.0 inches. The wettest season is Autumn with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 49.0 inches in Windsor means that it is drier than most places in Connecticut.


July is the wettest month in Greenville with 4.9 inches of rain, and the driest month is April with 3.6 inches. The wettest season is Autumn with 28% of yearly precipitation and 24% occurs in Winter, which is the driest season. The annual rainfall of 50.9 inches in Greenville means that it is wetter than most places in South Carolina.

May is the rainiest month in Windsor with 11.9 days of rain, and February is the driest month with only 9.1 rainy days. There are 120.3 rainy days annually in Windsor, which is rainier than most places in Connecticut. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 24% chance of a rainy day.

July is the rainiest month in Greenville with 10.5 days of rain, and October is the driest month with only 6.9 rainy days. There are 105.1 rainy days annually in Greenville, which is rainier than most places in South Carolina. The rainiest season is Autumn when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 37.0 inches in Windsor means that it is snowier than most places in Connecticut.

An annual snowfall of 2.5 inches in Greenville means that it is one of the snowiest places in South Carolina.

January is the snowiest month in Windsor with 11.3 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Greenville with 1.2 inches of snow, and 3 months of the year have significant snowfall.