Stonington, CT Climate


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United States / Connecticut / Norwich-New London Metro Area / New London County / Stonington / Zip Codes
Stonington, CT has a humid continental climate with warm summers and cold winters. The average temperature in the summer months is around 75 degrees Fahrenheit and in the winter months it averages around 30 degrees Fahrenheit. Precipitation falls throughout the year with snowfall in the winter months. Summers generally have low humidity levels, while winters are quite humid due to the close proximity of the Atlantic Ocean, which provides moisture to the area. Overall, Stonington has a moderate climate that offers comfortable temperatures and plenty of precipitation all year round.

Stonington, Connecticut gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Stonington averages 27 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 204 sunny days per year in Stonington. The US average is 205 sunny days.

Stonington gets some kind of precipitation, on average, 121 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 80 degrees
Winter Low: the January low is 22
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 Stonington is 7.1 (10=best), which means it is more comfortable than most places in Connecticut.

9.2 Summer - 5.3 Winter
June, September and August are the most pleasant months in Stonington, while January and February are the least comfortable months.

  ClimateStonington, ConnecticutUnited States
  47.9 in.38.1 in.
  26.9 in.27.8 in.
  120.6 days106.2 days
  204 days205 days
  79.5°85.8°
  21.7°21.7°
  7.17
  3.34.3
  20 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Stonington with an average high temperature of 79.5°, which ranks it as one of the coolest places in Connecticut. In Stonington, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Stonington are August, July and June.
In Stonington, there are 1.6 days annually when the high temperature is over 90°, which is one of the coolest places in Connecticut.
January has the coldest nighttime temperatures for Stonington with an average of 21.7°. This is one of the warmest places in Connecticut.
In Stonington, there are 106.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Connecticut.
In Stonington, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Connecticut.
The humidity is usually comfortable in Stonington but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.
March is the wettest month in Stonington 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 47.9 inches in Stonington means that it is drier than most places in Connecticut.
May is the rainiest month in Stonington with 11.7 days of rain, and February is the driest month with only 9.0 rainy days. There are 120.6 rainy days annually in Stonington, which is rainier 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 24% chance of a rainy day.
An annual snowfall of 26.9 inches in Stonington means that it is less snowy than most places in Connecticut. February is the snowiest month in Stonington with 7.8 inches of snow, and 6 months of the year have significant snowfall.
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