Last updated: June 18, 2025
In Black Diamond, Canada, the average temperature for December hovers around -6°C (21°F), with extremes reaching as low as -37°C (-33°F) and peaking at 14°C (57°F). This chilly month also sees 26 mm (1.0 in) of precipitation over approximately 5 days, contributing to a notable average humidity of 92%. Prepare for the cold and stay warm!
In December in Black Diamond, the average temperature is -6°C (21°F). Maximum temperatures can reach 14°C (57°F), while minimums can drop as low as -37°C (-33°F). Travelers should be prepared for significant temperature fluctuations and pack accordingly for both cold and milder weather.
In Black Diamond in December, the precipitation amount is 26 mm (1.0 in) over the course of 5 days.
In Black Diamond in December humidity is 92%. With an average temperature of -6°C (21°F), this humidity feels like an icy blanket that clings to your skin, making the cold air feel even more biting and heavy, which can be quite challenging for traveling.
In Black Diamond in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Black Diamond.
UV Risk Categories
Weather in Black Diamond varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Black Diamond, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 9 mm (0.4 inches) | 91% | low |
| February Weather | -10°C (14°F) | 31 mm (1.2 inches) | 93% | moderate |
| March Weather | -3°C (27°F) | 31 mm (1.2 inches) | 88% | moderate |
| April Weather | 2°C (36°F) | 47 mm (1.8 inches) | 84% | high |
| May Weather | 9°C (49°F) | 69 mm (2.7 inches) | 80% | very high |
| June Weather | 14°C (58°F) | 82 mm (3.2 inches) | 79% | very high |
| July Weather | 16°C (62°F) | 70 mm (2.7 inches) | 80% | very high |
| August Weather | 16°C (61°F) | 51 mm (2.0 inches) | 77% | very high |
| September Weather | 10°C (51°F) | 47 mm (1.9 inches) | 74% | high |
| October Weather | 3°C (38°F) | 34 mm (1.3 inches) | 80% | moderate |
| November Weather | -2°C (29°F) | 27 mm (1.1 inches) | 86% | low |
| December Weather | -6°C (21°F) | 26 mm (1.0 inches) | 92% | low |