Weather in Casselman in August

General weather information about Casselman

Average annual temperature is 8.1 °C

Absolute maximum temperature: 33.7 °C

Absolute minimum temperature: -31.8 °C

Number of sunny days: 122 days

Number of rainy days: 194 days

Number of snow days: 49 days

Look at detailed online map of Casselman

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

Casselman air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.211.07.526.732.133.732.327.231.828.315.19.6
Average daytime temperature (°C)-1.2-0.33.113.319.724.826.924.023.015.95.32.1
Average temperature (°C)-5.2-6.3-1.26.713.118.921.718.917.211.91.1-1.2
Average night temperature (°C)-9.0-11.0-4.91.16.513.517.414.412.48.5-2.4-4.0
Absolute minimum temperature (°C)-21.6-31.8-11.5-10.7-1.07.810.59.35.7-3.7-7.9-17.6

Casselman 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)9.210.411.913.514.915.615.314.112.511.09.58.8
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)2.85.36.37.710.910.111.110.09.95.45.02.5
Precipitation (mm)115808110185901671144911350111
Sunny days7491422104521998
Rainy days119141692027269221417
Snow days13158000000076

Casselman - weather forecast by months

Casselman weather in januaryCasselman weather in februaryCasselman weather in marchCasselman weather in aprilCasselman weather in mayCasselman weather in juneCasselman weather in julyCasselman weather in augustCasselman weather in septemberCasselman weather in octoberCasselman weather in novemberCasselman weather in december

Best time to visit Casselman:

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

  • May — 10.9(h)
  • June — 10.1(h)
  • July — 11.1(h)
  • August — 10.0(h)
  • September — 9.9(h)

Months with the longest average daylight duration in Casselman:

  • June — 15.6(h)
  • July — 15.3(h)

The largest precipitation sum in Casselman is at

  • July — 167(mm)

    • Weather forecast in the closest to Casselman admin centers

    Weather forecast in the closest towns to Casselman

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    Frequently asked questions

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