Last updated: June 24, 2025
In December, the average temperature in Clarkson, United States hovers around 1°C (34°F), with extremes ranging from a frigid -14°C (7°F) to a mild 17°C (63°F). Expect to encounter 98 mm (3.9 in) of precipitation spread across 17 days, contributing to an average humidity of a humid 87%. Embrace the chilly charm of this month in Clarkson!
In December in Clarkson, the average temperature is 1°C (34°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop as low as -14°C (7°F). Pack accordingly for your trip, as you may experience both chilly and mild weather.
In Clarkson in December, the precipitation amount is 98 mm (3.9 in) over a span of 17 days.
In Clarkson in December humidity is 87%. With an average temperature of 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making every step outside feel heavy and damp, and leaving you longing for warmth and comfort while traveling.
In Clarkson 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 Clarkson, you can visit Hourly UV Index in Clarkson.
UV Risk Categories
Weather in Clarkson varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Clarkson, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 84 mm (3.3 inches) | 91% | moderate |
| February Weather | -1°C (30°F) | 90 mm (3.5 inches) | 91% | moderate |
| March Weather | 2°C (35°F) | 74 mm (2.9 inches) | 88% | moderate |
| April Weather | 6°C (44°F) | 116 mm (4.6 inches) | 88% | very high |
| May Weather | 12°C (54°F) | 98 mm (3.9 inches) | 82% | very high |
| June Weather | 18°C (64°F) | 75 mm (3.0 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 137 mm (5.4 inches) | 77% | very high |
| August Weather | 22°C (72°F) | 90 mm (3.5 inches) | 72% | very high |
| September Weather | 19°C (66°F) | 71 mm (2.8 inches) | 76% | high |
| October Weather | 13°C (55°F) | 151 mm (5.9 inches) | 83% | moderate |
| November Weather | 5°C (41°F) | 99 mm (3.9 inches) | 88% | moderate |
| December Weather | 1°C (34°F) | 98 mm (3.9 inches) | 87% | low |