Best year time to visit Connecticut

General weather information about Connecticut

Average annual temperature is 11.6 °C

Absolute maximum temperature: 35.2 °C

Absolute minimum temperature: -21.6 °C

Number of sunny days: 160 days

Number of rainy days: 196 days

Number of snow days: 9 days

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* Weather data for Connecticut United States is based on climate observations for 2026 year

Connecticut air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.718.615.732.427.833.132.829.835.227.818.917.4
Average daytime temperature (°C)7.16.79.417.621.125.229.326.323.618.810.08.4
Average temperature (°C)3.11.73.911.114.518.823.721.218.513.64.73.8
Average night temperature (°C)-0.5-2.7-0.75.78.413.619.216.914.89.60.60.5
Absolute minimum temperature (°C)-5.4-21.6-8.4-1.93.07.913.312.76.73.8-5.0-6.6

Connecticut monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.610.611.913.314.515.114.913.812.511.19.99.2
Daylight minimum duration (h)9.010.011.012.014.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.36.47.48.611.810.310.89.57.47.66.95.1
Precipitation (mm)1565610710380711731292666954208
Sunny days1014151420571014151917
Rainy days191014161125242116161113
Snow days242000000001

Connecticut - weather forecast by months

Connecticut weather in januaryConnecticut weather in februaryConnecticut weather in marchConnecticut weather in aprilConnecticut weather in mayConnecticut weather in juneConnecticut weather in julyConnecticut weather in augustConnecticut weather in septemberConnecticut weather in octoberConnecticut weather in novemberConnecticut weather in december

Best time to visit Connecticut:

The best time to visit Connecticut during the most sunny months:

  • May — 11.8(h)
  • June — 10.3(h)
  • July — 10.8(h)

The largest precipitation sum in Connecticut is at

  • January — 156(mm)
  • July — 173(mm)
  • September — 266(mm)
  • December — 208(mm)

    • Weather forecast in the closest to Connecticut admin centers

    Weather forecast in the closest towns to Connecticut

    Explore Connecticut

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    MapTrains schedule
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    Frequently asked questions

    When is the best time to visit Connecticut?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Connecticut.
    What is the weather like in Connecticut?
    See average temperature, rainfall and daylight hours for Connecticut by month in the table above.
    How many sunny days does Connecticut have?
    The monthly weather statistics above show sunshine and rainfall patterns for Connecticut throughout the year.