Best year time to visit Castleton

General weather information about Castleton

Average annual temperature is 8.8 °C

Absolute maximum temperature: 31.3 °C

Absolute minimum temperature: -32.7 °C

Number of sunny days: 134 days

Number of rainy days: 196 days

Number of snow days: 35 days

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

Castleton air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)6.311.29.226.428.731.330.126.631.327.113.510.2
Average daytime temperature (°C)0.61.83.813.919.223.125.923.622.315.06.13.9
Average temperature (°C)-2.8-3.9-0.67.913.218.521.319.117.211.52.40.9
Average night temperature (°C)-5.9-8.9-4.32.97.514.016.915.212.78.4-1.1-1.8
Absolute minimum temperature (°C)-15.1-32.7-11.7-7.80.59.712.89.77.2-3.7-7.2-11.3

Castleton 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)9.310.511.913.514.815.415.114.012.511.09.78.9
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)3.45.66.49.111.611.011.811.110.05.45.92.8
Precipitation (mm)10086104102458114790225745105
Sunny days7814112192917121410
Rainy days14109171021292213191319
Snow days10108200000032

Castleton - weather forecast by months

Castleton weather in januaryCastleton weather in februaryCastleton weather in marchCastleton weather in aprilCastleton weather in mayCastleton weather in juneCastleton weather in julyCastleton weather in augustCastleton weather in septemberCastleton weather in octoberCastleton weather in novemberCastleton weather in december

Best time to visit Castleton:

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

  • May — 11.6(h)
  • June — 11.0(h)
  • July — 11.8(h)
  • August — 11.1(h)
  • September — 10.0(h)

Months with the longest average daylight duration in Castleton:

  • June — 15.4(h)

The largest precipitation sum in Castleton is at

  • March — 104(mm)
  • July — 147(mm)
  • December — 105(mm)

    • Weather forecast in the closest to Castleton admin centers

    Weather forecast in the closest towns to Castleton

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    Frequently asked questions

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