Last updated: June 24, 2025
In December, the average temperature in Sylvan Lake, United States hovers around 0°C (33°F), with a possible range from a chilly -22°C (-8°F) to a mild 17°C (63°F). Expect 54 mm (2.1 in) of precipitation spread over 9 days, contributing to an average humidity level of 86%. Brace yourself for a cozy, if damp, winter experience!
In December in Sylvan Lake, the average temperature is 0°C (33°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop as low as -22°C (-8°F). Be prepared for a wide range of temperatures if you're planning to travel during this month!
In Sylvan Lake in December, the precipitation amount is 54 mm (2.1 in) over a span of 9 days.
In Sylvan Lake in December humidity is 86%. With an average temperature of 0°C (33°F), this humidity feels like a damp chill that permeates your clothes, making traveling uncomfortable and necessitating warm, layered clothing to stay dry and cozy.
In Sylvan Lake in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Sylvan Lake, you can visit Hourly UV Index in Sylvan Lake.
UV Risk Categories
Weather in Sylvan Lake varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sylvan Lake, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 63 mm (2.5 inches) | 88% | low |
| February Weather | -2°C (28°F) | 66 mm (2.6 inches) | 87% | moderate |
| March Weather | 3°C (37°F) | 68 mm (2.7 inches) | 85% | moderate |
| April Weather | 8°C (47°F) | 90 mm (3.5 inches) | 86% | very high |
| May Weather | 15°C (60°F) | 111 mm (4.4 inches) | 80% | very high |
| June Weather | 21°C (70°F) | 94 mm (3.7 inches) | 80% | very high |
| July Weather | 24°C (75°F) | 88 mm (3.4 inches) | 80% | very high |
| August Weather | 22°C (73°F) | 81 mm (3.2 inches) | 80% | very high |
| September Weather | 19°C (66°F) | 64 mm (2.5 inches) | 80% | very high |
| October Weather | 12°C (54°F) | 101 mm (4.0 inches) | 84% | moderate |
| November Weather | 4°C (39°F) | 74 mm (2.9 inches) | 89% | moderate |
| December Weather | 0°C (33°F) | 54 mm (2.1 inches) | 86% | low |