Best year time to visit Willow Island

General weather information about Willow Island

Average annual temperature is 10.9 °C

Absolute maximum temperature: 38.8 °C

Absolute minimum temperature: -22.7 °C

Number of sunny days: 221 days

Number of rainy days: 121 days

Number of snow days: 23 days

Look at detailed online map of Willow Island

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

Willow Island air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)7.714.018.629.727.031.236.738.837.529.519.915.9
Average daytime temperature (°C)-1.15.48.518.123.227.130.031.427.917.912.06.6
Average temperature (°C)-5.0-2.01.210.117.021.223.724.920.911.55.40.8
Average night temperature (°C)-8.4-6.8-3.83.511.315.618.019.214.96.40.7-3.0
Absolute minimum temperature (°C)-22.7-20.0-9.7-5.80.49.110.913.19.4-8.6-7.1-6.6

Willow Island 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)5.58.18.811.010.812.312.111.810.48.17.35.3
Precipitation (mm)58232811112841033875552033
Sunny days171822231014112022192322
Rainy days44662116201181168
Snow days1063100000111

Willow Island - weather forecast by months

Willow Island weather in januaryWillow Island weather in februaryWillow Island weather in marchWillow Island weather in aprilWillow Island weather in mayWillow Island weather in juneWillow Island weather in julyWillow Island weather in augustWillow Island weather in septemberWillow Island weather in octoberWillow Island weather in novemberWillow Island weather in december

Best time to visit Willow Island:

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

  • June — 12.3(h)
  • July — 12.1(h)
  • August — 11.8(h)

The largest precipitation sum in Willow Island is at

  • May — 112(mm)
  • June — 84(mm)
  • July — 103(mm)
  • September — 75(mm)

    • Weather forecast in the closest to Willow Island admin centers

    Weather forecast in the closest towns to Willow Island

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    Frequently asked questions

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