Weather in Vashon in January

General weather information about Vashon

Average annual temperature is 11.6 °C

Absolute maximum temperature: 35.1 °C

Absolute minimum temperature: -4.4 °C

Number of sunny days: 176 days

Number of rainy days: 187 days

Number of snow days: 2 days

Look at detailed online map of Vashon

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

Vashon air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.712.517.323.130.531.732.435.129.126.915.815.0
Average daytime temperature (°C)8.68.011.012.721.623.728.428.422.516.610.59.8
Average temperature (°C)5.74.56.08.115.216.520.220.915.911.67.26.8
Average night temperature (°C)3.62.42.95.110.611.513.315.111.88.44.64.8
Absolute minimum temperature (°C)-3.6-4.4-0.51.58.18.711.111.17.9-0.6-2.50.6

Vashon monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.010.311.913.615.115.915.514.212.610.99.38.5
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)3.55.27.56.811.011.413.311.28.56.55.12.6
Precipitation (mm)114727915120304397183174231
Sunny days61196222127211416149
Rainy days241622249941016151622
Snow days110000000000

Vashon - weather forecast by months

Vashon weather in januaryVashon weather in februaryVashon weather in marchVashon weather in aprilVashon weather in mayVashon weather in juneVashon weather in julyVashon weather in augustVashon weather in septemberVashon weather in octoberVashon weather in novemberVashon weather in december

Best time to visit Vashon:

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

  • May — 11.0(h)
  • June — 11.4(h)
  • July — 13.3(h)
  • August — 11.2(h)

Months with the longest average daylight duration in Vashon:

  • June — 15.9(h)
  • July — 15.5(h)

The largest precipitation sum in Vashon is at

  • January — 114(mm)
  • April — 151(mm)
  • November — 174(mm)
  • December — 231(mm)

    • Weather forecast in the closest to Vashon admin centers

    Weather forecast in the closest towns to Vashon

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    Frequently asked questions

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