Best year time to visit City of Williamstown

General weather information about City of Williamstown

Average annual temperature is 13.5 °C

Absolute maximum temperature: 34.5 °C

Absolute minimum temperature: -8.6 °C

Number of sunny days: 178 days

Number of rainy days: 182 days

Number of snow days: 5 days

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* Weather data for City of Williamstown United States is based on climate observations for 2026 year

City of Williamstown air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.622.723.727.530.933.132.834.534.129.724.916.3
Average daytime temperature (°C)8.612.913.018.923.427.430.329.427.320.113.39.7
Average temperature (°C)4.26.16.512.216.920.924.223.220.514.47.44.9
Average night temperature (°C)1.01.31.86.611.115.419.518.115.010.13.21.6
Absolute minimum temperature (°C)-5.9-8.6-6.6-0.82.810.215.112.210.2-1.4-7.3-6.9

City of Williamstown monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.810.812.013.214.314.814.613.612.411.210.19.5
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.37.57.59.410.010.911.411.410.47.57.55.2
Precipitation (mm)126541318858791047672784172
Sunny days6171615191471514182314
Rainy days23111315121624161613716
Snow days202000000001

City of Williamstown - weather forecast by months

City of Williamstown weather in januaryCity of Williamstown weather in februaryCity of Williamstown weather in marchCity of Williamstown weather in aprilCity of Williamstown weather in mayCity of Williamstown weather in juneCity of Williamstown weather in julyCity of Williamstown weather in augustCity of Williamstown weather in septemberCity of Williamstown weather in octoberCity of Williamstown weather in novemberCity of Williamstown weather in december

Best time to visit City of Williamstown:

The best time to visit City of Williamstown during the most sunny months:

  • June — 10.9(h)
  • July — 11.4(h)
  • August — 11.4(h)

The largest precipitation sum in City of Williamstown is at

  • January — 126(mm)
  • March — 131(mm)
  • July — 104(mm)

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    Frequently asked questions

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