Calgary, Canada All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Calgary, from NOAA GHCN daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 101.3°F (39°C) | August 10, 2018 and June 29, 2021 |
| Record Low | -38.2°F (-39°C) | December 29, 1990 and January 26, 1997 and January 12, 2024 |
| Lowest High | -22°F (-30°C) | December 29, 1992 |
| Highest Low | 68°F (20°C) | July 2, 2021 and August 2, 2021 |
| Highest Mean | 82.0°F (28°C) | June 29, 2021 |
| Lowest Mean | -29.2°F (-34°C) | January 12, 2024 |
| Precipitation | ||
| Max in One Calendar Day | 3.62" (92.0 mm) | September 10, 2005 |
| Max in One Month | 13.67" (347.1 mm) | June 2005 |
| Least in One Month | 0.00" (0.0 mm) | February 1998 |
| Max in One Year | 32.18" (817.4 mm) | 2005 |
| Least in One Year | 12.04" (305.8 mm) | 2021 |
| Snowfall | ||
| Max in One Calendar Day | 18.0" (45.8 cm) | March 16, 1998 |
| Max in One Month | 35.2" (89.3 cm) | March 1998 |
| Max in One Season | 94.3" (239.4 cm) | 2009-10 |
| Max in One Year | 84.9" (215.6 cm) | 2019 |
| Earliest Snow | 1.3" (3.4 cm) | August 21, 1992 |
| Earliest Measurable Snow | 1.3" (3.4 cm) | August 21, 1992 |
| Latest Snow | 0.6" (1.4 cm) | June 6, 2009 |
| Latest Measurable Snow | 0.6" (1.4 cm) | June 6, 2009 |
| Period of Record | ||
| Temperature | May 1, 1990 – April 28, 2024 | |
| Precipitation | May 1, 1990 – April 28, 2024 | |
| Snowfall | May 1, 1990 – April 28, 2024 | |
Note: Records compiled from NOAA GHCN-Daily observations at OKOTOKS (22 mi from Calgary, Canada). Quality-flagged readings are excluded. Monthly and annual totals require substantially complete reporting for “least” records.
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Frequently Asked Questions
What is the hottest temperature ever recorded in Calgary, Canada?
The all-time record high in Calgary, Canada is 101.3°F (39°C), set on August 10, 2018 and June 29, 2021.
What is the coldest temperature ever recorded in Calgary, Canada?
The all-time record low in Calgary, Canada is -38.2°F (-39°C), set on December 29, 1990 and January 26, 1997 and January 12, 2024.
What is the most rain Calgary, Canada has ever had in one day?
The most precipitation recorded in one calendar day near Calgary, Canada is 3.62 inches, on September 10, 2005.
What is the biggest snowfall ever recorded in Calgary, Canada?
The most snow recorded in one calendar day near Calgary, Canada is 18.0 inches, on March 16, 1998.
Calgary Weather History
Monthly averages and climate data for Calgary
Canada Weather History
Historical weather for other Canada cities