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United StatesThe climate of Connecticut
The current climate in Connecticut features temperatures ranging from a high of 29°C to a low of 3°C throughout the year. The average yearly temperature is around 16°C. At night, temperatures in the colder months average around -6°C and in the warmer months around 18°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Connecticut, United States.
Temperature records
The highest temperature recorded in Connecticut in recent years was 37°C in June 2017. The lowest daytime temperature recorded was -13°C in February 2016.
Precipitation and snowfall
On average, Connecticut gets 1191 mm of precipitation each year. Of this, about 81 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
The climate in Connecticut is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Connecticut to get the full picture of the climate.
Best time to visit Connecticut?
The best time to visit Connecticut for sunny weather is May through July and September. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Connecticut. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
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Climate Table of Connecticut
The climate table of Connecticut shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 3 | 4 | 8 | 15 | 21 | 25 | 29 | 28 | 24 | 18 | 11 | 6 |
| Temp. min (°C) | -5 | -6 | -1 | 5 | 10 | 15 | 19 | 18 | 14 | 8 | 1 | -1 |
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| Precipitation (mm) | 116 | 65 | 61 | 100 | 80 | 53 | 93 | 145 | 104 | 193 | 75 | 106 |
| Snow (cm) | 25 | 27 | 14 | 1,4 | 0 | 0 | 0 | 0 | 0 | 1,0 | 1,2 | 12 |
| UV Index | 3 | 4 | 4 | 6 | 7 | 7 | 7 | 7 | 4 | 3 | 2 | 2 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
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Temperature charts
These charts display the average temperatures in Connecticut, United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Connecticut
Yearly Temperature in Connecticut
Precipitation charts
These charts show the average amount of precipitation in Connecticut, United States. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Connecticut
Total Yearly Precipitation in Connecticut
Average Snowfall per Month in Connecticut
Total Yearly Snowfall in Connecticut
UV index chart
This chart shows the average UV index per month in Connecticut, United States. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Connecticut
Weather experiences in Connecticut
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Average weather in Connecticut by month
Click on a month below to see detailed weather info for Connecticut. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.