Last updated: June 18, 2025
In Joliette, Canada, the average temperature in December hovers around -6°C (21°F). Expect chilly days where the thermometer may dip as low as -28°C (-17°F) and occasionally reach up to 13°C (56°F). With 88 mm (3.4 in) of precipitation over 11 days, it's a notably damp month, characterized by an average humidity of 89%. Prepare for a brisk and wet winter experience!
In December in Joliette, the average temperature is -6°C (21°F). The maximum can reach 13°C (56°F), while the minimum can drop as low as -28°C (-17°F). Travelers should prepare for a wide range of temperatures, ensuring they pack appropriately for both cold and mild conditions.
In Joliette in December, the precipitation amount is 88 mm (3.4 in) during 11 days, indicating a relatively wet period for the area.
In Joliette 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 Joliette 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 Joliette, you can visit Hourly UV Index in Joliette.
UV Risk Categories
Weather in Joliette varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Joliette, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (15°F) | 82 mm (3.2 inches) | 93% | low |
| February Weather | -8°C (18°F) | 82 mm (3.2 inches) | 92% | moderate |
| March Weather | -3°C (27°F) | 84 mm (3.3 inches) | 86% | moderate |
| April Weather | 5°C (41°F) | 120 mm (4.7 inches) | 85% | high |
| May Weather | 13°C (56°F) | 95 mm (3.8 inches) | 80% | very high |
| June Weather | 18°C (65°F) | 90 mm (3.5 inches) | 74% | very high |
| July Weather | 22°C (71°F) | 84 mm (3.3 inches) | 76% | very high |
| August Weather | 20°C (68°F) | 95 mm (3.7 inches) | 75% | very high |
| September Weather | 15°C (60°F) | 64 mm (2.5 inches) | 78% | high |
| October Weather | 9°C (48°F) | 119 mm (4.7 inches) | 86% | moderate |
| November Weather | 0°C (32°F) | 110 mm (4.4 inches) | 88% | moderate |
| December Weather | -6°C (21°F) | 88 mm (3.4 inches) | 89% | low |