Best year time to visit Plum Island

General weather information about Plum Island

Average annual temperature is 10.9 °C

Absolute maximum temperature: 31.1 °C

Absolute minimum temperature: -25.0 °C

Number of sunny days: 161 days

Number of rainy days: 194 days

Number of snow days: 10 days

Look at detailed online map of Plum Island

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

Plum Island air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.314.915.123.530.227.931.128.730.627.718.415.4
Average daytime temperature (°C)5.34.86.812.819.620.927.224.922.218.29.07.3
Average temperature (°C)2.10.23.18.814.017.223.120.618.713.94.83.7
Average night temperature (°C)-0.7-3.8-0.15.69.614.219.517.115.710.51.71.0
Absolute minimum temperature (°C)-6.7-25.0-4.5-2.03.78.914.813.810.22.7-4.0-6.8

Plum Island monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.615.315.013.912.511.19.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)4.06.27.38.611.99.510.610.17.87.77.25.1
Precipitation (mm)1764512597781161511171428445162
Sunny days913141519861310162216
Rainy days19121415122225182015814
Snow days333000000001

Best time to visit Plum Island:

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

  • May — 11.9(h)
  • July — 10.6(h)
  • August — 10.1(h)

Months with the longest average daylight duration in Plum Island:

  • June — 15.3(h)

The largest precipitation sum in Plum Island is at

  • January — 176(mm)
  • July — 151(mm)
  • September — 142(mm)
  • December — 162(mm)
  • Frequently asked questions

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