Calgary weather in October
October is one of the least pleasant months in Calgary: highs of 9°C (48°F) and about 32 mm (1.3 in) of rain on average. Nights average -2°C (28°F) and cloud cover 68% (NASA POWER, 2001–2025 averages). It is the 6th driest month of the year and the 6th warmest. Compared with September, it is cooler and drier; November brings highs of 1°C (34°F) and 23 mm (0.9 in) of rain.
Is October a good time to visit Calgary?
least pleasant month Weather score 48/100.
October is one of the least pleasant months for weather in Calgary. For better conditions, consider Jul–Sep.
Does it rain a lot in Calgary in October?
No, it is usually dry: about 32 mm (1.3 in) falls in an average October. It is the 6th driest month of the year.
How warm is Calgary in October?
Days average 9°C (48°F) and nights -2°C (28°F).
Calgary weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | -3°C (27°F) | -11°C (11°F) | 17 mm | 70% | least pleasant |
| February | -2°C (29°F) | -12°C (10°F) | 21 mm | 69% | least pleasant |
| March | 3°C (37°F) | -8°C (17°F) | 26 mm | 72% | least pleasant |
| April | 9°C (47°F) | -3°C (26°F) | 46 mm | 72% | least pleasant |
| May | 15°C (59°F) | 2°C (36°F) | 73 mm | 70% | fair |
| June | 19°C (66°F) | 7°C (44°F) | 115 mm | 70% | fair |
| July | 24°C (74°F) | 10°C (50°F) | 58 mm | 56% | best |
| August | 22°C (72°F) | 9°C (47°F) | 61 mm | 56% | best |
| September | 17°C (62°F) | 4°C (39°F) | 53 mm | 62% | best |
| October | 9°C (48°F) | -2°C (28°F) | 32 mm | 68% | least pleasant |
| November | 1°C (34°F) | -7°C (19°F) | 23 mm | 71% | least pleasant |
| December | -4°C (26°F) | -12°C (11°F) | 21 mm | 68% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months