Last updated: June 18, 2025
In Blackfalds, Canada, the average temperature in December hovers around -8°C (17°F), with remarkable fluctuations: it can plummet to a chilling -37°C (-34°F) or rise to a mild 9°C (49°F). Expect a modest precipitation of 23 mm (0.9 in) spread over approximately 7 days, while the air remains quite humid, with an average relative humidity of 91%.
In December, in Blackfalds, the average temperature is -8°C (17°F). Maximums can reach 9°C (49°F), while minimums can plummet to as low as -37°C (-34°F). When traveling to Blackfalds during this time, be prepared for a wide range of temperatures and pack accordingly for both cold spells and milder days.
In Blackfalds in December, the total precipitation amount is 23 mm (0.9 in) over a duration of 7 days.
In Blackfalds in December, humidity is 91%. With an average temperature of -8°C (17°F), this humidity feels like a chilly dampness that clings to your skin, making it uncomfortable for traveling as every step feels heavier and the cold seems to seep into your bones.
In Blackfalds in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Blackfalds.
UV Risk Categories
Weather in Blackfalds varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Blackfalds, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 13 mm (0.5 inches) | 90% | low |
| February Weather | -12°C (11°F) | 21 mm (0.8 inches) | 92% | moderate |
| March Weather | -4°C (25°F) | 30 mm (1.2 inches) | 87% | moderate |
| April Weather | 2°C (36°F) | 32 mm (1.3 inches) | 81% | high |
| May Weather | 10°C (51°F) | 68 mm (2.7 inches) | 77% | high |
| June Weather | 15°C (59°F) | 97 mm (3.8 inches) | 77% | very high |
| July Weather | 17°C (62°F) | 89 mm (3.5 inches) | 81% | very high |
| August Weather | 16°C (60°F) | 54 mm (2.1 inches) | 78% | high |
| September Weather | 10°C (51°F) | 57 mm (2.3 inches) | 73% | high |
| October Weather | 3°C (37°F) | 28 mm (1.1 inches) | 78% | moderate |
| November Weather | -4°C (25°F) | 33 mm (1.3 inches) | 82% | low |
| December Weather | -8°C (17°F) | 23 mm (0.9 inches) | 91% | low |