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Climate in Connecticut
(United States)

Average daytime and nighttime temperatures


All climatic diagrams on this site result from the collected data from seven measuring weather stations in Connecticut.
All data correspond to the average monthly values of the last 20 years.


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Connecticut is one of the coldest regions in the United States with an average daily high temperature of only 17 degrees centigrade. The climate is very changeable and offers varied seasons with deep winters and warm summers.
Overview: Climate in the United States
Daylengths and sun positions in the United States
Compare climate with other regions or countries
Rainy days per monthRainy days per month in Connecticut
A rainy day is a day on which at least an amount of 0.1 mm precipitation (=0.1 liter) per square meter falls. This can be rain, snow, hail or even dew. So it does not have to rain the whole day. With 10 rainy days, December offers the most number of rainy days, and in September the least.
Precipitation in mm/dayPrecipitation in Connecticut
The amount of precipitation is measured in millimeters per square meter. Thus, at two mm/day, two liters of water fall on one square meter within 24 hours. With only 2.6 mm, the least rain falls in January. August, on the other hand, has the most rain.
Map of Connecticut

Most important cities in the federal state »Connecticut«

Alone 6 cities with over 100,000 inhabitants are located here. The federal state has a west-east extension of about 150 km and over 110 km from north to south.

CityPopulationGeo position
Bridgeport145,93641° 10' 1"N73° 12' 17"W
New Haven129,93441° 18' 29"N72° 55' 41"W
Stamford129,11341° 3' 12"N73° 32' 19"W
Hartford123,24341° 45' 49"N72° 41' 6"W
North Stamford121,23041° 8' 17"N73° 32' 36"W
Waterbury108,27241° 33' 29"N73° 3' 5"W
Norwalk85,60341° 7' 3"N73° 24' 28"W
East Norwalk84,53041° 6' 20"N73° 23' 54"W
Danbury80,89341° 23' 41"N73° 27' 14"W
New Britain73,20641° 39' 40"N72° 46' 46"W
West Hartford63,26841° 45' 43"N72° 44' 31"W
Meriden60,86841° 32' 17"N72° 48' 25"W
Bristol60,47741° 40' 18"N72° 56' 57"W
Hamden59,84741° 23' 45"N72° 53' 48"W
Fairfield59,05241° 8' 28"N73° 15' 49"W
West Haven55,56441° 16' 14"N72° 56' 49"W
Milford52,75941° 13' 20"N73° 3' 23"W
Stratford51,38441° 11' 4"N73° 7' 59"W
City of Milford (balance)51,27141° 13' 25"N73° 3' 42"W
East Hartford51,25241° 46' 56"N72° 36' 43"W
Middletown47,64841° 33' 44"N72° 39' 2"W
Enfield45,21241° 58' 34"N72° 35' 30"W
Norwich40,49341° 31' 27"N72° 4' 33"W
Shelton39,55941° 18' 59"N73° 5' 35"W
Torrington36,38341° 48' 2"N73° 7' 16"W
Trumbull36,01841° 14' 34"N73° 12' 2"W
West Torrington36,00041° 49' 6"N73° 8' 37"W
Glastonbury31,87641° 42' 44"N72° 36' 29"W
Naugatuck31,86241° 29' 9"N73° 3' 2"W
Manchester30,57741° 46' 33"N72° 31' 17"W


Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants: geonames.org, United Nations Statistics Division and own research.
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