2025 Compare Climate & Weather:
Stamford, CT vs Thornton, NH

Highlights

On average, there are 194 sunny days per year in Thornton. Stamford averages 178 sunny days per year. The US average is 205 sunny days.

Thornton, New Hampshire gets 45.1 inches of rain, on average, per year. Stamford, Connecticut gets 50.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Thornton averages 68.4 inches of snow per year. Stamford averages 29.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Thornton, New Hampshire
Summer High: the July high is around 78.7 degrees
Winter Low: the January low is 6
Rain: averages 45.1 inches of rain a year
Snow: averages 68.4 inches of snow a year

Stamford, Connecticut
Summer High: the July high is around 83.6 degrees
Winter Low: the January low is 21.4
Rain: averages 50.8 inches of rain a year
Snow: averages 29.9 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Thornton is 6.1 (10=best), which means it is less comfortable than most places in New Hampshire.

The annual BestPlaces Comfort Index for Stamford is 7.1 (10=best), which means it is more comfortable than most places in Connecticut.

Today's Weather - Stamford, CT

54°F

Today's Weather - Thornton, NH

47°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Stamford / Thornton

July is the hottest month for Stamford with an average high temperature of 83.6°, which ranks it as warmer than most places in Connecticut. In Stamford, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Stamford are June, September and August.

July is the hottest month for Thornton with an average high temperature of 78.7°, which ranks it as cooler than most places in New Hampshire. In Thornton, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Thornton are August, July and June.

January has the coldest nighttime temperatures for Stamford with an average of 21.4°. This is warmer than most places in Connecticut.

January has the coldest nighttime temperatures for Thornton with an average of 6.0°. This is colder than most places in New Hampshire.

In Stamford, there are 9.5 days annually when the high temperature is over 90°, which is hotter than most places in Connecticut.

In Thornton, there are 2.4 days annually when the high temperature is over 90°, which is cooler than most places in New Hampshire.

In Stamford, there are 108.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Connecticut.

In Thornton, there are 183.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in New Hampshire.

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

In Thornton, there are 25.2 days annually when the nighttime low temperature falls below zero°, which is colder than most places in New Hampshire.

September is the wettest month in Stamford with 4.7 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Winter with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 50.8 inches in Stamford means that it is wetter than most places in Connecticut.


October is the wettest month in Thornton with 4.6 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Autumn with 29% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 45.1 inches in Thornton means that it is about average compared to other places in New Hampshire.

April is the rainiest month in Stamford with 12.1 days of rain, and February is the driest month with only 9.0 rainy days. There are 124.1 rainy days annually in Stamford, which is rainier than most places in Connecticut. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 24% chance of a rainy day.

June is the rainiest month in Thornton with 13.5 days of rain, and February is the driest month with only 9.7 rainy days. There are 139.9 rainy days annually in Thornton, which is rainier than most places in New Hampshire. The rainiest season is Autumn when it rains 26% of the time and the driest is Spring with only a 24% chance of a rainy day.

An annual snowfall of 29.9 inches in Stamford means that it is less snowy than most places in Connecticut.

An annual snowfall of 68.4 inches in Thornton means that it is snowier than most places in New Hampshire.

February is the snowiest month in Stamford with 9.0 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Thornton with 17.5 inches of snow, and 6 months of the year have significant snowfall.