Calgary, Alberta, Canada climate
Average temperatures, precipitation and all-time records for Calgary, Alberta, Canada, with every day graded against ~45 years of local climate history (1981–2026). Its warmest month is July, averaging a high of 23°C, and its coldest is January, with an average low of -12°C.
Calgary is the largest city in the Canadian province of Alberta. As of 2021, the city proper had a population of 1,306,784 and a metropolitan population of 1,481,806, making Calgary the third-largest city and the fifth-largest metropolitan area in Canada. via Wikipedia
How today compares
Latest recorded day: 2026-07-21. Each reading placed on Calgary, Alberta, Canada's own ±7-day seasonal distribution.
Notable weather in Calgary
The June 2013 Alberta floods, among the costliest disasters in Canadian history, forced the evacuation of downtown Calgary as the Bow and Elbow rivers overflowed. Read more →
Calgary average temperatures by month
Typical daily high and low, and average precipitation, for each month in Calgary, Alberta, Canada, based on 1981–2026 records. The wettest month is April (3 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | -3°C | -12°C | 0 mm |
| February | -1°C | -11°C | 0 mm |
| March | 4°C | -7°C | 0 mm |
| April | 9°C | -3°C | 3 mm |
| May | 15°C | 2°C | 3 mm |
| June | 18°C | 6°C | 3 mm |
| July | 23°C | 9°C | 3 mm |
| August | 23°C | 9°C | 3 mm |
| September | 17°C | 4°C | 3 mm |
| October | 11°C | -1°C | 0 mm |
| November | 2°C | -7°C | 0 mm |
| December | -3°C | -11°C | 0 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
Thinking of visiting Calgary?
Trips live and die by the weather. See how Calgary's comfort stacks up against where you live. Calgary is pre-loaded, just add your city.
Record extremes
- Hottest day on record: 35°C on 2002-07-13
- Coldest day on record: -39°C on 2024-01-12
Percentiles compare each day to Calgary, Alberta, Canada's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →