Last updated: June 24, 2025
In December, the average temperature in Clarissa, United States hovers around -7°C (19°F). Expect chilly conditions, with minimum temperatures plunging to -30°C (-22°F) and maximums reaching up to 8°C (46°F). The month sees around 48 mm (1.9 in) of precipitation over 8 days, accompanied by a high average humidity of 86%. Prepare for a cold and damp climate!
In December in Clarissa, the average temperature is -7°C (19°F), with maximums reaching 8°C (46°F) and minimums dropping as low as -30°C (-22°F). Travelers should be prepared for extremely cold conditions and dress accordingly to stay warm.
In Clarissa in December, the precipitation amount is 48 mm (1.9 in) over a span of 8 days.
In Clarissa in December, humidity is 86%. With an average temperature of -7°C (19°F), this humidity feels like a thick, chilly blanket enveloping you, making outdoor activities uncomfortable and travel feel more laborious as the cold dampness seeps into your bones.
In Clarissa 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 Clarissa, you can visit Hourly UV Index in Clarissa.
UV Risk Categories
Weather in Clarissa varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Clarissa, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -11°C (12°F) | 19 mm (0.8 inches) | 90% | low |
| February Weather | -11°C (12°F) | 23 mm (0.9 inches) | 92% | moderate |
| March Weather | -2°C (29°F) | 37 mm (1.5 inches) | 85% | moderate |
| April Weather | 4°C (40°F) | 62 mm (2.4 inches) | 81% | high |
| May Weather | 13°C (56°F) | 80 mm (3.2 inches) | 75% | very high |
| June Weather | 20°C (69°F) | 77 mm (3.0 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 91 mm (3.6 inches) | 76% | very high |
| August Weather | 20°C (68°F) | 104 mm (4.1 inches) | 78% | very high |
| September Weather | 16°C (61°F) | 99 mm (3.9 inches) | 77% | high |
| October Weather | 7°C (45°F) | 93 mm (3.6 inches) | 79% | moderate |
| November Weather | -2°C (29°F) | 26 mm (1.0 inches) | 86% | moderate |
| December Weather | -7°C (19°F) | 48 mm (1.9 inches) | 86% | low |