Last updated: June 24, 2025
In December, the average temperature in Centralia, United States hovers around 3°C (38°F). Expect a wide range, with a minimum of -18°C (0°F) and a maximum reaching 24°C (75°F). Rainfall is moderate, with about 40 mm (1.6 in) spread over 6 days, while the air remains quite humid, averaging 86%.
In December in Centralia, the average temperature is 3°C (38°F). The maximum can reach 24°C (75°F) and the minimum can be as low as -18°C (0°F). Be prepared for a wide range of temperatures when traveling to Centralia during this time.
In Centralia in December, the precipitation amount is 40 mm (1.6 in) over the course of 6 days.
In Centralia in December humidity is 86%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps through your layers, making traveling uncomfortable as breath clouds visibly in the crisp air.
In Centralia 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 Centralia, you can check the information here.
UV Risk Categories
Weather in Centralia varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Centralia, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -1°C (31°F) | 66 mm (2.6 inches) | 82% | moderate |
February Weather | 1°C (33°F) | 59 mm (2.3 inches) | 80% | moderate |
March Weather | 8°C (46°F) | 118 mm (4.7 inches) | 80% | high |
April Weather | 12°C (54°F) | 114 mm (4.5 inches) | 80% | very high |
May Weather | 19°C (66°F) | 189 mm (7.4 inches) | 82% | very high |
June Weather | 25°C (77°F) | 114 mm (4.5 inches) | 83% | extreme |
July Weather | 26°C (80°F) | 97 mm (3.8 inches) | 81% | extreme |
August Weather | 24°C (76°F) | 122 mm (4.8 inches) | 80% | very high |
September Weather | 22°C (72°F) | 59 mm (2.3 inches) | 76% | very high |
October Weather | 14°C (58°F) | 110 mm (4.3 inches) | 76% | high |
November Weather | 6°C (44°F) | 54 mm (2.1 inches) | 85% | moderate |
December Weather | 3°C (38°F) | 40 mm (1.6 inches) | 86% | moderate |