Last updated: June 18, 2025
In December, the average temperature in Winchester, Canada hovers around -4°C (26°F). Expect chilly nights, with minimum temperatures plunging to -29°C (-20°F), while daytime highs can reach a mild 16°C (61°F). This month also brings 84 mm (3.3 in) of precipitation over 13 days, resulting in an average humidity of a brisk 89%. Stay warm and prepared for the elements!
In December in Winchester, the average temperature is -4°C (26°F), with maximums reaching 16°C (61°F) and minimums dropping as low as -29°C (-20°F). Travelers should be prepared for a wide range of weather conditions during this time.
In Winchester in December, the precipitation amount is 84 mm (3.3 in) during 13 days, indicating a relatively wet period for that time of year.
In Winchester in December, humidity is 89%. With an average temperature of -4°C (26°F), this humidity feels like a biting chill that clings to your skin, making every step outdoors feel like traversing through a frosty fog.
In Winchester 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 Winchester, you can visit Hourly UV Index in Winchester.
UV Risk Categories
Weather in Winchester varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Winchester, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (19°F) | 80 mm (3.1 inches) | 93% | low |
| February Weather | -6°C (21°F) | 81 mm (3.2 inches) | 93% | moderate |
| March Weather | -1°C (30°F) | 87 mm (3.4 inches) | 86% | moderate |
| April Weather | 6°C (44°F) | 117 mm (4.6 inches) | 82% | very high |
| May Weather | 14°C (57°F) | 110 mm (4.3 inches) | 75% | very high |
| June Weather | 19°C (66°F) | 97 mm (3.8 inches) | 68% | very high |
| July Weather | 22°C (72°F) | 119 mm (4.7 inches) | 69% | very high |
| August Weather | 21°C (69°F) | 99 mm (3.9 inches) | 67% | very high |
| September Weather | 16°C (62°F) | 70 mm (2.8 inches) | 72% | high |
| October Weather | 10°C (50°F) | 137 mm (5.4 inches) | 83% | moderate |
| November Weather | 2°C (35°F) | 101 mm (4.0 inches) | 88% | moderate |
| December Weather | -4°C (26°F) | 84 mm (3.3 inches) | 89% | low |