Last updated: June 18, 2025
In December, the average temperature in Lac-Megantic, Canada hovers around -7°C (20°F). Residents can expect temperatures to dip as low as -30°C (-21°F), while highs can reach up to 13°C (56°F). This month typically sees 92 mm (3.6 in) of precipitation spread over 16 days, contributing to an average humidity level of 85%.
In December in Lac-Megantic, the average temperature is -7°C (20°F). Maximum can reach 13°C (56°F) and minimum can be as low as -30°C (-21°F). Travelers should be prepared for significant temperature variations and dress warmly to enjoy outdoor activities comfortably.
In Lac-Megantic in December, the total precipitation amount reaches 92 mm (3.6 in) spread over 16 days.
In Lac-Megantic in December humidity is 85%. With an average temperature of -7°C (20°F), this humidity feels like an icy breath that clings to your skin, making travel challenging as the cold seeps into your bones while you navigate through the damp air.
In Lac-Megantic 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 Lac-Megantic, you can visit Hourly UV Index in Lac-Megantic.
UV Risk Categories
Weather in Lac-Megantic varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Lac-Megantic, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (15°F) | 92 mm (3.6 inches) | 91% | low |
| February Weather | -8°C (17°F) | 87 mm (3.4 inches) | 89% | moderate |
| March Weather | -4°C (24°F) | 84 mm (3.3 inches) | 85% | moderate |
| April Weather | 3°C (38°F) | 121 mm (4.7 inches) | 84% | high |
| May Weather | 10°C (51°F) | 111 mm (4.4 inches) | 78% | very high |
| June Weather | 15°C (60°F) | 115 mm (4.5 inches) | 72% | very high |
| July Weather | 18°C (65°F) | 114 mm (4.5 inches) | 75% | very high |
| August Weather | 17°C (64°F) | 114 mm (4.5 inches) | 74% | very high |
| September Weather | 13°C (56°F) | 79 mm (3.1 inches) | 77% | high |
| October Weather | 7°C (45°F) | 136 mm (5.4 inches) | 85% | moderate |
| November Weather | -1°C (30°F) | 112 mm (4.4 inches) | 86% | moderate |
| December Weather | -7°C (20°F) | 92 mm (3.6 inches) | 85% | low |