Best year time to visit Stonington

General weather information about Stonington

Average annual temperature is 7.5 °C

Absolute maximum temperature: 30.2 °C

Absolute minimum temperature: -21.2 °C

Number of sunny days: 179 days

Number of rainy days: 148 days

Number of snow days: 38 days

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

Stonington air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.37.24.923.422.528.429.430.228.924.614.18.6
Average daytime temperature (°C)-1.2-0.41.39.215.621.524.423.620.513.56.33.3
Average temperature (°C)-4.1-4.7-2.44.611.016.919.418.916.89.92.20.6
Average night temperature (°C)-6.7-8.3-5.90.96.712.615.015.013.77.2-0.8-1.5
Absolute minimum temperature (°C)-21.2-19.8-12.3-9.1-0.36.710.89.38.0-3.1-8.4-7.3

Stonington monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.110.411.913.514.915.615.314.112.510.99.58.7
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)3.06.96.87.811.012.112.410.78.96.25.83.6
Precipitation (mm)61525614078758010638982539
Sunny days13121711221971516111818
Rainy days7761691124161419910
Snow days1198300000133

Stonington - weather forecast by months

Stonington weather in januaryStonington weather in februaryStonington weather in marchStonington weather in aprilStonington weather in mayStonington weather in juneStonington weather in julyStonington weather in augustStonington weather in septemberStonington weather in octoberStonington weather in novemberStonington weather in december

Best time to visit Stonington:

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

  • May — 11.0(h)
  • June — 12.1(h)
  • July — 12.4(h)
  • August — 10.7(h)

Months with the longest average daylight duration in Stonington:

  • June — 15.6(h)
  • July — 15.3(h)

The largest precipitation sum in Stonington is at

  • April — 140(mm)
  • August — 106(mm)
  • October — 98(mm)

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    Frequently asked questions

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