Last updated: June 24, 2025
In White Rock, United States, the average temperature in December hovers around 0°C (32°F), with temperatures ranging from a chilly -20°C (-3°F) to a mild 17°C (64°F). Expect a precipitation amount of about 21 mm (0.8 in) over 4 days, and prepare for a humidity level of 79%, adding a touch of crispness to the air.
In December in White Rock, the average temperature is 0°C (32°F), with highs reaching up to 17°C (64°F) and lows dropping as low as -20°C (-3°F). This wide temperature range suggests that travelers should be prepared for both chilly and mild weather during their visit.
In White Rock in December, the precipitation amount is 21 mm (0.8 in) over a span of 4 days.
In White Rock in December humidity is 79%. With an average temperature of 0°C (32°F), this humidity feels like a heavy blanket wrapping around you, making every step outside feel like a challenge while also leaving a chill that cuts through your bones—it's a reminder to dress warmly yet prepare for the dampness that clings to your clothes, making travel less comfortable and more of an adventure.
In White Rock in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in White Rock for better planning.
UV Risk Categories
Weather in White Rock varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in White Rock, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 29 mm (1.1 inches) | 78% | moderate |
| February Weather | 0°C (32°F) | 29 mm (1.2 inches) | 79% | high |
| March Weather | 5°C (42°F) | 34 mm (1.3 inches) | 66% | very high |
| April Weather | 10°C (50°F) | 30 mm (1.2 inches) | 60% | extreme |
| May Weather | 15°C (59°F) | 25 mm (1.0 inches) | 57% | extreme |
| June Weather | 20°C (69°F) | 29 mm (1.1 inches) | 55% | extreme |
| July Weather | 22°C (71°F) | 70 mm (2.8 inches) | 56% | extreme |
| August Weather | 20°C (69°F) | 66 mm (2.6 inches) | 65% | extreme |
| September Weather | 17°C (64°F) | 45 mm (1.8 inches) | 72% | extreme |
| October Weather | 10°C (51°F) | 56 mm (2.2 inches) | 78% | very high |
| November Weather | 5°C (41°F) | 31 mm (1.2 inches) | 81% | moderate |
| December Weather | 0°C (32°F) | 21 mm (0.8 inches) | 79% | moderate |