Last updated: June 18, 2025
In December, the average temperature in Brownsburg-Chatham, Canada hovers around -6°C (21°F), with extremes ranging from a chilly -28°C (-18°F) to a mild 13°C (55°F). Expect about 93 mm (3.7 in) of precipitation spread over 12 days, and a high average humidity of 89%. Bundle up and prepare for a crisp, wet month!
In December in Brownsburg-Chatham, the average temperature is -6°C (21°F), with maximums that can reach 13°C (55°F) and minimums that can drop to -28°C (-18°F). Travelers should prepare for a chilly climate and pack appropriate winter clothing to enjoy their visit.
In Brownsburg-Chatham in December, the precipitation amount is 93 mm (3.7 in) over the course of 12 days.
In Brownsburg-Chatham 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 Brownsburg-Chatham 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 Brownsburg-Chatham, you can visit Hourly UV Index in Brownsburg-Chatham.
UV Risk Categories
Weather in Brownsburg-Chatham varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Brownsburg-Chatham, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (15°F) | 84 mm (3.3 inches) | 93% | low |
| February Weather | -8°C (18°F) | 88 mm (3.5 inches) | 92% | moderate |
| March Weather | -3°C (26°F) | 91 mm (3.6 inches) | 86% | moderate |
| April Weather | 5°C (41°F) | 113 mm (4.5 inches) | 85% | high |
| May Weather | 13°C (55°F) | 112 mm (4.4 inches) | 80% | very high |
| June Weather | 18°C (64°F) | 105 mm (4.1 inches) | 74% | very high |
| July Weather | 21°C (70°F) | 127 mm (5.0 inches) | 76% | very high |
| August Weather | 19°C (67°F) | 108 mm (4.2 inches) | 75% | very high |
| September Weather | 15°C (59°F) | 93 mm (3.7 inches) | 78% | high |
| October Weather | 8°C (47°F) | 131 mm (5.2 inches) | 86% | moderate |
| November Weather | 0°C (32°F) | 108 mm (4.3 inches) | 88% | moderate |
| December Weather | -6°C (21°F) | 93 mm (3.7 inches) | 89% | low |