Weather in Alliston in June

General weather information about Alliston

Average annual temperature is 8.7 °C

Absolute maximum temperature: 32.5 °C

Absolute minimum temperature: -28.8 °C

Number of sunny days: 146 days

Number of rainy days: 178 days

Number of snow days: 41 days

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* Weather data for Alliston Canada is based on climate observations for 2026 year

Alliston air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)6.412.610.128.330.431.230.128.732.529.714.612.9
Average daytime temperature (°C)0.92.64.214.919.323.726.324.122.715.66.94.4
Average temperature (°C)-2.0-3.4-0.87.912.418.120.618.716.811.52.81.4
Average night temperature (°C)-4.8-8.6-4.92.76.212.815.514.312.18.1-0.7-1.2
Absolute minimum temperature (°C)-16.3-28.8-13.9-6.4-1.29.011.38.24.3-3.4-6.5-8.2

Alliston 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)9.310.511.913.514.815.415.114.012.511.09.68.9
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)2.75.96.28.411.211.511.610.19.75.55.02.4
Precipitation (mm)797579925413012010427563875
Sunny days710111323156101911129
Rainy days1281017815252111201516
Snow days121010000000036

Alliston - weather forecast by months

Alliston weather in januaryAlliston weather in februaryAlliston weather in marchAlliston weather in aprilAlliston weather in mayAlliston weather in juneAlliston weather in julyAlliston weather in augustAlliston weather in septemberAlliston weather in octoberAlliston weather in novemberAlliston weather in december

Best time to visit Alliston:

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

  • May — 11.2(h)
  • June — 11.5(h)
  • July — 11.6(h)
  • August — 10.1(h)
  • September — 9.7(h)

Months with the longest average daylight duration in Alliston:

  • June — 15.4(h)

The largest precipitation sum in Alliston is at

  • June — 130(mm)
  • July — 120(mm)
  • August — 104(mm)

    • Weather forecast in the closest to Alliston admin centers

    Weather forecast in the closest towns to Alliston

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    Frequently asked questions

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