ClimateForecastNovemberDecember >>

Calgary Climate by Month

The climate in Calgary is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to very cold in the cooler months. It receives a moderate amount of precipitation. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

In Calgary, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 24°C in July to a very cold -2°C in January. Nighttime temperatures can drop, with averages reaching -12°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

On average, Calgary receives a reasonable amount of rain/snowfall, with an annual precipitation of 555 mm. The seasons in Calgary, bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 115 mm of precipitation. This rainfall is distributed across 12 rainy days. In contrast, the driest month, January, experiences much less snowfall, totaling 17 mm over 8 snowy days. These distinct seasonal differences provide diverse experiences throughout the year.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Calgary, summer days are longer and more sunny, with daily sunshine hours peaking at 10.5 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.7 hours.

Monthly hours of sunshine

Daily hours of sunshine

The best time of year to visit Calgary in Canada

During the months of June, July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does Calgary have a dry season?
    Yes, the months of January, February and December are very dry.
  • When is winter in Calgary?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Calgary?
    July has an average maximum temperature of 24°C and is the warmest month of the year.
  • Which is the coldest month in Calgary?
    The coldest month is January with an average maximum temperature of -2°C.
  • Which is the wettest month in Calgary?
    June tops the wettest month list with 115 mm of rainfall.
  • Which is the driest month in Calgary?
    January is the driest month with 17 mm of precipitation.
  • Which is the sunniest month in Calgary?
    July is the sunniest month with an average of 315 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Calgary

    Sun   Nov 24
    -11°C | -22°C
    NW 14 km/h
    almost clear and no rain

    almost clear and no rain

    Mon   Nov 25
    -13°C | -22°C
    SE 14 km/h
    2.3 mm
    overcast and snow

    overcast and snow

    Tue   Nov 26
    -2°C | -18°C
    W 14 km/h
    partly cloudy and no rain

    partly cloudy and no rain