Last updated: June 24, 2025
In December, the average temperature in Chewelah, United States hovers around -2°C (29°F). Temperature extremes can vary dramatically, with a minimum of -25°C (-12°F) and a maximum reaching 15°C (59°F). Expect moist conditions with an average precipitation of 80 mm (3.1 in) over 13 days, contributing to a high average humidity of 93%.
In December in Chewelah, the average temperature is -2°C (29°F), with a maximum that can reach 15°C (59°F) and a minimum that can drop as low as -25°C (-12°F). Travelers should be prepared for a wide range of temperatures, from chilly days to potentially frigid nights.
In Chewelah in December, the precipitation amount is 80 mm (3.1 in) spread over the course of 13 days.
In Chewelah in December humidity is 93%. With an average temperature of -2°C (29°F), this humidity feels like a dense, frosty blanket that clings to you, making the cold seep into your bones and transforming outdoor activities into a chilly challenge.
In Chewelah 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 Chewelah, you can visit Hourly UV Index in Chewelah.
UV Risk Categories
Weather in Chewelah varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Chewelah, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (28°F) | 84 mm (3.3 inches) | 90% | low |
| February Weather | -3°C (27°F) | 62 mm (2.5 inches) | 91% | moderate |
| March Weather | 2°C (37°F) | 64 mm (2.5 inches) | 89% | moderate |
| April Weather | 7°C (45°F) | 65 mm (2.6 inches) | 85% | high |
| May Weather | 13°C (56°F) | 58 mm (2.3 inches) | 82% | very high |
| June Weather | 18°C (64°F) | 33 mm (1.3 inches) | 81% | very high |
| July Weather | 22°C (73°F) | 7 mm (0.3 inches) | 84% | very high |
| August Weather | 22°C (71°F) | 21 mm (0.8 inches) | 75% | very high |
| September Weather | 15°C (60°F) | 37 mm (1.5 inches) | 74% | high |
| October Weather | 7°C (45°F) | 59 mm (2.3 inches) | 85% | moderate |
| November Weather | 2°C (35°F) | 71 mm (2.8 inches) | 88% | moderate |
| December Weather | -2°C (29°F) | 80 mm (3.1 inches) | 93% | low |