Calgary weather averages

Going to Calgary? Find the best month to visit Calgary based on the weather.

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Check Calgary weather averages before you book your next holiday in 2018/2019. Today's maximum temperature in Calgary is expected to be 3°C, while the average maximum temperature in December is -3°C.

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More about Calgary

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The weather for Calgary, Alberta shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Calgary weather averages: best month

Calgary Best month Averages
Warmest July 23°C
Sunniest July 10 hours per day
Least rain October 5 days

Calgary climate guide

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Calgary weather averages by month

Check Calgary holiday weather averages for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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Compare Calgary weather with the USA

Below the Calgary weather chart shows maximum daytime temperature for Calgary, Alberta, Canada and the USA (Washington). For more weather parameters or to change the destinations shown visit the comparison weather tool.

Maximum daytime temperature (°C)

Calgary, Alberta, Canada
USA (Washington)
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Metric (°C / mm)  |  Imperial (°F / inches)

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Popular Alberta destinations

Below are average maximum temperatures at popular destinations in Alberta in December. Select a destination to see the weather overview and compare average conditions with today's forecast.

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More Alberta destinations

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All destinations (A to Z)

Can't see your chosen destination? Use our A to Z search to find your required the holiday weather guide:

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