Best year time to visit Deer Island

General weather information about Deer Island

Average annual temperature is 21.4 °C

Absolute maximum temperature: 39.9 °C

Absolute minimum temperature: -1.3 °C

Number of sunny days: 128 days

Number of rainy days: 237 days

Look at detailed online map of Deer Island

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

Deer Island air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)23.826.727.528.832.136.437.739.935.031.727.025.3
Average daytime temperature (°C)18.720.522.824.628.732.033.936.532.426.620.917.4
Average temperature (°C)14.115.818.020.023.927.129.331.126.921.415.812.9
Average night temperature (°C)10.412.514.116.319.523.025.526.722.417.211.99.2
Absolute minimum temperature (°C)0.21.4-1.38.511.919.322.621.918.99.53.02.2

Deer Island monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.411.112.012.913.714.113.913.212.311.410.610.2
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)7.07.79.28.910.711.310.911.911.09.66.47.8
Precipitation (mm)189127100138139226159387483164171
Sunny days1481110715105191721
Rainy days172020202429262125121310
Snow days000000000000

Deer Island - weather forecast by months

Deer Island weather in januaryDeer Island weather in februaryDeer Island weather in marchDeer Island weather in aprilDeer Island weather in mayDeer Island weather in juneDeer Island weather in julyDeer Island weather in augustDeer Island weather in septemberDeer Island weather in octoberDeer Island weather in novemberDeer Island weather in december

Best time to visit Deer Island:

The best time to visit Deer Island during the most sunny months:

  • August — 11.9(h)

The largest precipitation sum in Deer Island is at

  • January — 189(mm)
  • June — 226(mm)
  • December — 171(mm)

    • Weather forecast in the closest to Deer Island admin centers

    Weather forecast in the closest towns to Deer Island

    Explore Deer Island

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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