Last updated: June 24, 2025
In December, the average temperature in Claremont, United States hovers around -4°C (25°F), with lows dipping to a chilly -25°C (-12°F) and occasional highs reaching 19°C (66°F). The region experiences an average precipitation of 42 mm (1.6 in) over 6 days, while humidity levels remain high at 83%. Stay prepared for a mix of winter chills and the potential for damp days!
In December in Claremont, the average temperature is -4°C (25°F). Maximums can reach 19°C (66°F) and minimums can be as low as -25°C (-12°F). Be prepared for a wide temperature range when traveling during this time.
In Claremont in December, the total precipitation amount is 42 mm (1.6 in) over a span of 6 days.
In Claremont in December, humidity is 83%. With an average temperature of -4°C (25°F), this humidity feels like a chilling fog enveloping you, making every breath feel heavy and damp, which can quickly dampen the spirit of travel as you navigate the frosty landscape.
In Claremont in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Claremont, you can check the information here.
UV Risk Categories
Weather in Claremont varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Claremont, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (17°F) | 36 mm (1.4 inches) | 82% | moderate |
| February Weather | -9°C (16°F) | 45 mm (1.8 inches) | 84% | moderate |
| March Weather | 1°C (33°F) | 63 mm (2.5 inches) | 80% | moderate |
| April Weather | 6°C (44°F) | 94 mm (3.7 inches) | 81% | very high |
| May Weather | 15°C (59°F) | 143 mm (5.6 inches) | 74% | very high |
| June Weather | 21°C (71°F) | 127 mm (5.0 inches) | 80% | very high |
| July Weather | 23°C (73°F) | 104 mm (4.1 inches) | 80% | very high |
| August Weather | 21°C (70°F) | 121 mm (4.8 inches) | 77% | very high |
| September Weather | 18°C (64°F) | 128 mm (5.0 inches) | 75% | very high |
| October Weather | 9°C (48°F) | 98 mm (3.9 inches) | 80% | moderate |
| November Weather | 1°C (34°F) | 43 mm (1.7 inches) | 87% | moderate |
| December Weather | -4°C (25°F) | 42 mm (1.6 inches) | 83% | moderate |