Collinsville, CT Climate


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United States / Connecticut / Hartford-East Hartford-Middletown Metro Area / Hartford County / Collinsville / Zip Codes
Collinsville, CT has a humid continental climate with cold winters and warm summers. The average temperature for the year is around 48 degrees Fahrenheit, with the hottest month being July when temperatures can reach up to 82°F and the coldest month being January when temperatures dip down to 15°F. Precipitation is fairly consistent throughout the year, ranging from around 2 to 5 inches per month on average. Snowfall amounts vary from year to year, but generally range between 20 and 40 inches annually.

Collinsville, Connecticut gets 53 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Collinsville averages 46 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 191 sunny days per year in Collinsville. The US average is 205 sunny days.

Collinsville gets some kind of precipitation, on average, 128 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 83 degrees
Winter Low: the January low is 14
Rain: averages 53 inches of rain a year
Snow: averages 46 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Collinsville is 6.8 (10=best), which means it is less comfortable than most places in Connecticut.

9.1 Summer - 4.7 Winter
August, July and June are the most pleasant months in Collinsville, while January and February are the least comfortable months.

  ClimateCollinsville, ConnecticutUnited States
  52.7 in.38.1 in.
  46.3 in.27.8 in.
  128.4 days106.2 days
  191 days205 days
  82.6°85.8°
  13.6°21.7°
  6.87
  3.34.3
  299 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 Collinsville with an average high temperature of 82.6°, which ranks it as about average compared to other places in Connecticut. In Collinsville, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Collinsville are June, August and September.
In Collinsville, there are 7.5 days annually when the high temperature is over 90°, which is about average compared to other places in Connecticut.
January has the coldest nighttime temperatures for Collinsville with an average of 13.6°. This is colder than most places in Connecticut.
In Collinsville, there are 154.9 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Connecticut.
In Collinsville, there are 7.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Connecticut.
Humidity in Collinsville is generally low and comfortable. But there some days when the humidity becomes unpleasant, especially in July and August. The most humid months (but still comfortable) are July, August and June.
October is the wettest month in Collinsville with 5.1 inches of rain, and the driest month is February with 3.5 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 52.7 inches in Collinsville means that it is one of the wettest places in Connecticut.
May is the rainiest month in Collinsville with 12.6 days of rain, and February is the driest month with only 8.9 rainy days. There are 128.4 rainy days annually in Collinsville, which is one of the rainiest places in Connecticut. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.
An annual snowfall of 46.3 inches in Collinsville means that it is snowier than most places in Connecticut. January is the snowiest month in Collinsville with 12.7 inches of snow, and 6 months of the year have significant snowfall.
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