Last updated: June 18, 2025
In December, the average temperature in Greenbank, Canada hovers around -3°C (27°F), with extremes ranging from a chilling -30°C (-22°F) to a surprisingly mild 16°C (60°F). Expect about 73 mm (2.9 in) of precipitation over 13 days, contributing to an average humidity of 91%. Prepare for a moist and cold climate!
In December in Greenbank, the average temperature is -3°C (27°F), with maximums reaching 16°C (60°F) and minimums dropping as low as -30°C (-22°F). Be prepared for a wide range of temperatures when traveling to Greenbank this month.
In Greenbank in December, the precipitation amount is 73 mm (2.9 in) over the course of 13 days.
In Greenbank in December humidity is 91%. With an average temperature of -3°C (27°F), this humidity feels like a thick, icy blanket wrapping around you, making travel quite uncomfortable as every breath is a mix of frigid air and moisture, and the cold dampness clings to your skin, turning even short outings into a test of endurance.
In Greenbank 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 Greenbank, you can visit Hourly UV Index in Greenbank.
UV Risk Categories
Weather in Greenbank varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Greenbank, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 66 mm (2.6 inches) | 93% | low |
| February Weather | -6°C (22°F) | 70 mm (2.8 inches) | 94% | moderate |
| March Weather | -1°C (31°F) | 66 mm (2.6 inches) | 87% | high |
| April Weather | 5°C (42°F) | 116 mm (4.6 inches) | 82% | very high |
| May Weather | 13°C (56°F) | 105 mm (4.1 inches) | 74% | very high |
| June Weather | 18°C (65°F) | 106 mm (4.2 inches) | 68% | very high |
| July Weather | 22°C (71°F) | 104 mm (4.1 inches) | 67% | very high |
| August Weather | 20°C (69°F) | 125 mm (4.9 inches) | 67% | very high |
| September Weather | 16°C (61°F) | 73 mm (2.9 inches) | 74% | high |
| October Weather | 10°C (50°F) | 103 mm (4.1 inches) | 83% | moderate |
| November Weather | 2°C (35°F) | 84 mm (3.3 inches) | 89% | moderate |
| December Weather | -3°C (27°F) | 73 mm (2.9 inches) | 91% | low |