Best year time to visit Williamsville

General weather information about Williamsville

Average annual temperature is 10.3 °C

Absolute maximum temperature: 32.4 °C

Absolute minimum temperature: -23.7 °C

Number of sunny days: 127 days

Number of rainy days: 209 days

Number of snow days: 29 days

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

Williamsville air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)9.515.712.527.230.432.431.130.330.328.315.014.5
Average daytime temperature (°C)3.15.05.414.919.524.126.724.422.816.08.47.0
Average temperature (°C)0.2-0.21.28.713.318.922.019.917.712.54.64.0
Average night temperature (°C)-2.4-4.4-2.23.97.714.218.016.113.59.71.51.6
Absolute minimum temperature (°C)-11.5-23.7-14.2-4.90.89.714.810.27.1-0.8-4.6-4.8

Williamsville 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)9.410.511.913.414.715.315.013.912.511.09.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)2.15.75.78.711.510.711.69.99.55.65.12.9
Precipitation (mm)1217598134518715011524806996
Sunny days6911122110781581010
Rainy days161213181020242315231718
Snow days977000000033

Williamsville - weather forecast by months

Williamsville weather in januaryWilliamsville weather in februaryWilliamsville weather in marchWilliamsville weather in aprilWilliamsville weather in mayWilliamsville weather in juneWilliamsville weather in julyWilliamsville weather in augustWilliamsville weather in septemberWilliamsville weather in octoberWilliamsville weather in novemberWilliamsville weather in december

Best time to visit Williamsville:

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

  • May — 11.5(h)
  • June — 10.7(h)
  • July — 11.6(h)
  • August — 9.9(h)
  • September — 9.5(h)

Months with the longest average daylight duration in Williamsville:

  • June — 15.3(h)

The largest precipitation sum in Williamsville is at

  • January — 121(mm)
  • April — 134(mm)
  • July — 150(mm)

    • Weather forecast in the closest to Williamsville admin centers

    Weather forecast in the closest towns to Williamsville

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    Frequently asked questions

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