Last updated: June 18, 2025
In Lavaltrie, Canada, the average temperature in December hovers around -6°C (21°F). Expect chilly conditions, with minimum temperatures plunging to -27°C (-17°F) and occasionally reaching a maximum of 13°C (56°F). It's a month to prepare for some precipitation, averaging 90 mm (3.5 in) over 10 days. With an average humidity level of 89%, you'll feel the cold in the air!
In December in Lavaltrie, the average temperature is -6°C (21°F), with a maximum of 13°C (56°F) and a minimum that can drop to -27°C (-17°F). Travelers should be prepared for chilly conditions and significant temperature fluctuations during this time.
In Lavaltrie in December, the precipitation amount is 90 mm (3.5 in) over the course of 10 days.
In Lavaltrie in December, humidity is 89%. With an average temperature of -6°C (21°F), this humidity feels like an uncomfortable chill that seeps into your bones, making traveling outdoors an arduous task as the cold air mixes with dampness, often leaving you feeling cold and clammy despite layers of clothing.
In Lavaltrie 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 Lavaltrie, you can visit Hourly UV Index in Lavaltrie.
UV Risk Categories
Weather in Lavaltrie varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Lavaltrie, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (15°F) | 83 mm (3.3 inches) | 93% | low |
| February Weather | -8°C (18°F) | 82 mm (3.2 inches) | 92% | moderate |
| March Weather | -3°C (27°F) | 85 mm (3.4 inches) | 86% | moderate |
| April Weather | 5°C (42°F) | 121 mm (4.8 inches) | 85% | high |
| May Weather | 13°C (56°F) | 96 mm (3.8 inches) | 80% | very high |
| June Weather | 19°C (66°F) | 95 mm (3.7 inches) | 74% | very high |
| July Weather | 22°C (71°F) | 89 mm (3.5 inches) | 76% | very high |
| August Weather | 20°C (69°F) | 104 mm (4.1 inches) | 75% | very high |
| September Weather | 16°C (60°F) | 64 mm (2.5 inches) | 78% | high |
| October Weather | 9°C (49°F) | 124 mm (4.9 inches) | 86% | moderate |
| November Weather | 0°C (33°F) | 114 mm (4.5 inches) | 88% | moderate |
| December Weather | -6°C (21°F) | 90 mm (3.5 inches) | 89% | low |