Best year time to visit Old Greenwich

General weather information about Old Greenwich

Average annual temperature is 12.6 °C

Absolute maximum temperature: 34.3 °C

Absolute minimum temperature: -17.8 °C

Number of sunny days: 163 days

Number of rainy days: 197 days

Number of snow days: 5 days

Look at detailed online map of Old Greenwich

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

Old Greenwich air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)17.719.015.230.228.330.633.030.534.326.919.116.5
Average daytime temperature (°C)7.97.59.617.420.724.829.127.023.819.010.89.0
Average temperature (°C)4.33.04.912.015.219.524.122.319.414.46.15.0
Average night temperature (°C)1.4-0.91.07.610.015.220.018.315.910.72.21.8
Absolute minimum temperature (°C)-3.9-17.8-2.90.45.09.416.014.810.05.1-4.0-5.6

Old Greenwich 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)9.610.611.913.314.515.114.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.86.47.58.612.110.611.410.27.67.47.15.1
Precipitation (mm)14352126142488217513724911259203
Sunny days14151212191071013151917
Rainy days171116181220242117161114
Snow days023000000000

Old Greenwich - weather forecast by months

Old Greenwich weather in januaryOld Greenwich weather in februaryOld Greenwich weather in marchOld Greenwich weather in aprilOld Greenwich weather in mayOld Greenwich weather in juneOld Greenwich weather in julyOld Greenwich weather in augustOld Greenwich weather in septemberOld Greenwich weather in octoberOld Greenwich weather in novemberOld Greenwich weather in december

Best time to visit Old Greenwich:

The best time to visit Old Greenwich during the most sunny months:

  • May — 12.1(h)
  • June — 10.6(h)
  • July — 11.4(h)

The largest precipitation sum in Old Greenwich is at

  • July — 175(mm)
  • September — 249(mm)
  • December — 203(mm)

    • Weather forecast in the closest to Old Greenwich admin centers

    Weather forecast in the closest towns to Old Greenwich

    Explore Old Greenwich

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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