2025 Compare Climate & Weather:
Westerly, RI vs Old Saybrook, CT

Highlights

On average, there are 194 sunny days per year in Old Saybrook. Westerly averages 206 sunny days per year. The US average is 205 sunny days.

Old Saybrook, Connecticut gets 47.8 inches of rain, on average, per year. Westerly, Rhode Island gets 48 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Old Saybrook averages 25.9 inches of snow per year. Westerly averages 27 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Old Saybrook, Connecticut
Summer High: the July high is around 79.7 degrees
Winter Low: the January low is 22.7
Rain: averages 47.8 inches of rain a year
Snow: averages 25.9 inches of snow a year

Westerly, Rhode Island
Summer High: the July high is around 79.6 degrees
Winter Low: the January low is 21.5
Rain: averages 48 inches of rain a year
Snow: averages 27 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Westerly is 7.1 (10=best), which means it is one of the most pleasant places in Rhode Island.

Today's Weather - Westerly, RI

52°F

Today's Weather - Old Saybrook, CT

50°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Westerly / Old Saybrook

July is the hottest month for Westerly with an average high temperature of 79.6°, which ranks it as one of the coolest places in Rhode Island. In Westerly, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Westerly are August, July and June.

July is the hottest month for Old Saybrook with an average high temperature of 79.7°, which ranks it as cooler than most places in Connecticut. In Old Saybrook, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Old Saybrook are August, July and June.

January has the coldest nighttime temperatures for Westerly with an average of 21.5°. This is warmer than most places in Rhode Island.

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

In Westerly, there are 1.7 days annually when the high temperature is over 90°, which is one of the coolest places in Rhode Island.

In Old Saybrook, there are 1.8 days annually when the high temperature is over 90°, which is cooler than most places in Connecticut.

In Westerly, there are 108.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Rhode Island.

In Old Saybrook, there are 98.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Connecticut.

In Westerly, there are 1.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Rhode Island.

In Old Saybrook, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Connecticut.

March is the wettest month in Westerly with 4.7 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Summer with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 48.0 inches in Westerly means that it is drier than most places in Rhode Island.


March is the wettest month in Old Saybrook with 4.6 inches of rain, and the driest month is February with 3.4 inches. The wettest season is Summer with 26% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 47.8 inches in Old Saybrook means that it is drier than most places in Connecticut.

May is the rainiest month in Westerly with 11.7 days of rain, and August is the driest month with only 8.9 rainy days. There are 120.2 rainy days annually in Westerly, which is less rainy than most places in Rhode Island. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 23% chance of a rainy day.

May is the rainiest month in Old Saybrook with 11.0 days of rain, and August is the driest month with only 8.1 rainy days. There are 114.9 rainy days annually in Old Saybrook, which is less rainy than most places in Connecticut. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 27.0 inches in Westerly means that it is less snowy than most places in Rhode Island.

An annual snowfall of 25.9 inches in Old Saybrook means that it is one of the least snowy places in Connecticut.

February is the snowiest month in Westerly with 7.9 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Old Saybrook with 7.9 inches of snow, and 6 months of the year have significant snowfall.