Last updated: June 18, 2025
In December, the average temperature in Saint-Lazare, Canada hovers around -5°C (23°F). Be prepared for chilly extremes, as temperatures can plunge to a minimum of -28°C (-17°F), while occasionally peaking at a maximum of 15°C (59°F). Expect 91 mm (3.6 in) of precipitation spread over 12 days, with an average humidity level lingering at a brisk 89%.
In December in Saint-Lazare, the average temperature is -5°C (23°F), with a maximum that can reach 15°C (59°F) and a minimum that can drop as low as -28°C (-17°F). Travelers should be prepared for a wide range of temperatures and dress in layers to ensure comfort during their visit.
In Saint-Lazare in December, the precipitation amount is 91 mm (3.6 in) over a period of 12 days.
In Saint-Lazare in December, humidity is 89%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and prompting frequent breaks to warm up indoors.
In Saint-Lazare 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 Saint-Lazare, you can visit Hourly UV Index in Saint-Lazare.
UV Risk Categories
Weather in Saint-Lazare varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint-Lazare, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (17°F) | 86 mm (3.4 inches) | 93% | low |
| February Weather | -7°C (19°F) | 89 mm (3.5 inches) | 92% | moderate |
| March Weather | -2°C (28°F) | 91 mm (3.6 inches) | 86% | moderate |
| April Weather | 6°C (42°F) | 120 mm (4.7 inches) | 85% | high |
| May Weather | 13°C (56°F) | 110 mm (4.3 inches) | 80% | very high |
| June Weather | 19°C (66°F) | 104 mm (4.1 inches) | 74% | very high |
| July Weather | 22°C (71°F) | 109 mm (4.3 inches) | 76% | very high |
| August Weather | 20°C (69°F) | 105 mm (4.1 inches) | 75% | very high |
| September Weather | 16°C (61°F) | 81 mm (3.2 inches) | 78% | high |
| October Weather | 9°C (49°F) | 133 mm (5.2 inches) | 86% | moderate |
| November Weather | 1°C (34°F) | 112 mm (4.4 inches) | 88% | moderate |
| December Weather | -5°C (23°F) | 91 mm (3.6 inches) | 89% | low |