Calgary Climate: Weather by Month and Best Time to Visit
Best months for Calgary: August, July, September.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -2°C | -12°C | 12 mm | 4 | – | – | 4.6 |
| February | 0°C | -10°C | 12 mm | 4 | – | – | 4.6 |
| March | 5°C | -7°C | 21 mm | 6 | – | – | 5.0 |
| April | 12°C | -2°C | 37 mm | 8 | – | – | 6.1 |
| May | 17°C | 3°C | 72 mm | 11 | – | – | 6.8 |
| June | 20°C | 8°C | 104 mm | 14 | – | – | 6.8 |
| July | 24°C | 10°C | 61 mm | 11 | – | – | 7.6 |
| August | 24°C | 9°C | 64 mm | 10 | – | – | 7.8 |
| September | 19°C | 5°C | 43 mm | 8 | – | – | 7.6 |
| October | 12°C | -1°C | 25 mm | 6 | – | – | 6.4 |
| November | 3°C | -6°C | 19 mm | 5 | – | – | 4.8 |
| December | -2°C | -11°C | 13 mm | 4 | – | – | 4.6 |