Best year time to visit Williamsport

General weather information about Williamsport

Average annual temperature is 11.9 °C

Absolute maximum temperature: 33.3 °C

Absolute minimum temperature: -11.3 °C

Number of sunny days: 149 days

Number of rainy days: 199 days

Number of snow days: 17 days

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

Williamsport air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.021.019.627.331.333.033.331.933.227.718.114.9
Average daytime temperature (°C)6.710.59.717.922.025.929.027.224.517.910.78.3
Average temperature (°C)2.73.54.111.115.219.723.021.318.713.15.64.5
Average night temperature (°C)-0.1-1.3-0.25.69.214.218.216.714.19.21.81.6
Absolute minimum temperature (°C)-6.3-11.3-7.3-2.92.09.614.511.98.31.2-7.0-4.6

Williamsport 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)9.610.711.913.314.515.014.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)2.86.36.58.410.610.711.511.09.06.76.63.7
Precipitation (mm)142581096764106837425764570
Sunny days11121014201241013151810
Rainy days151416151118272117161019
Snow days525100000022

Williamsport - weather forecast by months

Williamsport weather in januaryWilliamsport weather in februaryWilliamsport weather in marchWilliamsport weather in aprilWilliamsport weather in mayWilliamsport weather in juneWilliamsport weather in julyWilliamsport weather in augustWilliamsport weather in septemberWilliamsport weather in octoberWilliamsport weather in novemberWilliamsport weather in december

Best time to visit Williamsport:

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

  • May — 10.6(h)
  • June — 10.7(h)
  • July — 11.5(h)
  • August — 11.0(h)

The largest precipitation sum in Williamsport is at

  • January — 142(mm)
  • March — 109(mm)
  • June — 106(mm)

    • Weather forecast in the closest to Williamsport admin centers

    Weather forecast in the closest towns to Williamsport

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    Frequently asked questions

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