Weather in Granby in September

General weather information about Granby

Average annual temperature is 8.0 °C

Absolute maximum temperature: 32.3 °C

Absolute minimum temperature: -31.4 °C

Number of sunny days: 118 days

Number of rainy days: 197 days

Number of snow days: 50 days

Look at detailed online map of Granby

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

Granby air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)6.710.27.726.730.232.331.126.229.627.115.011.7
Average daytime temperature (°C)-0.7-0.23.014.118.922.925.822.521.715.65.02.4
Average temperature (°C)-3.9-6.2-1.17.612.617.721.218.117.011.71.2-1.0
Average night temperature (°C)-7.4-11.7-5.32.46.513.217.614.513.28.5-1.9-4.4
Absolute minimum temperature (°C)-17.1-31.4-13.2-7.7-0.56.411.19.77.3-3.0-8.4-17.4

Granby monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
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)2.45.35.48.310.79.19.99.38.55.54.83.1
Precipitation (mm)1147289121731482581956012689136
Sunny days64911199051891315
Rainy days10913181121312612221113
Snow days15159110000063

Granby - weather forecast by months

Granby weather in januaryGranby weather in februaryGranby weather in marchGranby weather in aprilGranby weather in mayGranby weather in juneGranby weather in julyGranby weather in augustGranby weather in septemberGranby weather in octoberGranby weather in novemberGranby weather in december

Best time to visit Granby:

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

  • May — 10.7(h)
  • June — 9.1(h)
  • July — 9.9(h)
  • August — 9.3(h)

Months with the longest average daylight duration in Granby:

  • June — 15.6(h)
  • July — 15.3(h)

The largest precipitation sum in Granby is at

  • July — 258(mm)
  • August — 195(mm)

    • Weather forecast in the closest to Granby admin centers

    Weather forecast in the closest towns to Granby

    Frequently asked questions

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