Last updated: June 18, 2025
In December, the average temperature in Williams Lake, Canada hovers around -6°C (21°F). Be prepared for temperature extremes, with a minimum dipping to -36°C (-32°F) and a maximum reaching up to 8°C (47°F). Expect about 41 mm (1.6 in) of precipitation spread over 10 days, and brace yourself for a high average humidity of 97%.
In December in Williams Lake, the average temperature is -6°C (21°F). Maximums can reach 8°C (47°F), while minimums can drop as low as -36°C (-32°F). It's advisable to pack warm clothing and prepare for potentially extreme weather conditions when traveling during this time.
In Williams Lake in December, the precipitation amount is 41 mm (1.6 in) spread over 10 days.
In Williams Lake in December, humidity is 97%. With an average temperature of -6°C (21°F), this humidity feels like an icy blanket enveloping you, making travel particularly challenging as the cold clings to your skin and dampens even the most spirited adventures.
In Williams Lake 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 Williams Lake.
UV Risk Categories
Weather in Williams Lake varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Williams Lake, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 30 mm (1.2 inches) | 94% | low |
| February Weather | -8°C (18°F) | 42 mm (1.7 inches) | 93% | moderate |
| March Weather | -1°C (31°F) | 31 mm (1.2 inches) | 90% | moderate |
| April Weather | 4°C (40°F) | 35 mm (1.4 inches) | 88% | moderate |
| May Weather | 11°C (53°F) | 39 mm (1.5 inches) | 84% | high |
| June Weather | 15°C (58°F) | 46 mm (1.8 inches) | 80% | very high |
| July Weather | 17°C (63°F) | 60 mm (2.4 inches) | 86% | very high |
| August Weather | 17°C (62°F) | 36 mm (1.4 inches) | 83% | very high |
| September Weather | 11°C (53°F) | 68 mm (2.7 inches) | 83% | high |
| October Weather | 4°C (39°F) | 73 mm (2.9 inches) | 90% | moderate |
| November Weather | 0°C (31°F) | 52 mm (2.1 inches) | 96% | low |
| December Weather | -6°C (21°F) | 41 mm (1.6 inches) | 97% | low |