Last updated: June 24, 2025
In December, the average temperature in Belmont, United States hovers around -1°C (30°F). Be prepared for a chill, as minimums can plunge to -22°C (-8°F), while the warms may reach a comfortable 19°C (67°F). Expect about 43 mm (1.7 in) of precipitation spread over 6 days, contributing to an average humidity of a brisk 82%. Adapt your wardrobe accordingly!
In December in Belmont, the average temperature is -1°C (30°F), making it a chilly time to visit. While maximum temperatures can reach a pleasant 19°C (67°F), be prepared for minimums that can drop to a brisk -22°C (-8°F). It's advisable to dress warmly and enjoy the seasonal beauty that Belmont has to offer!
In Belmont in December, the precipitation amount is 43 mm (1.7 in) over a period of 6 days.
In Belmont in December, humidity is 82%. With an average temperature of -1°C (30°F), this humidity feels like a sharp chill that penetrates your clothing, making travel uncomfortable and dampening your spirit as you navigate through the cold, moisture-laden air.
In Belmont 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 Belmont, you can visit Hourly UV Index in Belmont.
UV Risk Categories
Weather in Belmont varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Belmont, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 50 mm (2.0 inches) | 84% | moderate |
| February Weather | -5°C (23°F) | 59 mm (2.3 inches) | 85% | moderate |
| March Weather | 3°C (37°F) | 61 mm (2.4 inches) | 84% | high |
| April Weather | 8°C (47°F) | 91 mm (3.6 inches) | 83% | very high |
| May Weather | 16°C (60°F) | 141 mm (5.6 inches) | 75% | very high |
| June Weather | 22°C (71°F) | 131 mm (5.2 inches) | 79% | very high |
| July Weather | 24°C (75°F) | 93 mm (3.7 inches) | 75% | very high |
| August Weather | 22°C (71°F) | 103 mm (4.1 inches) | 69% | very high |
| September Weather | 18°C (66°F) | 113 mm (4.4 inches) | 74% | very high |
| October Weather | 11°C (51°F) | 120 mm (4.7 inches) | 79% | moderate |
| November Weather | 2°C (37°F) | 45 mm (1.8 inches) | 88% | moderate |
| December Weather | -1°C (30°F) | 43 mm (1.7 inches) | 82% | low |