Last updated: June 24, 2025
In December, the average temperature in Coulee City, United States hovers around 0°C (32°F). Expect a chilly range with minimums dipping to -18°C (0°F) and maximums reaching 17°C (63°F). During this month, precipitation typically amounts to 40 mm (1.6 in) across about 9 days, while the air maintains a high average humidity of 86%.
In December in Coulee City, the average temperature is 0°C (32°F). The maximum can reach 17°C (63°F), and the minimum can be as low as -18°C (0°F). Travelers should be prepared for a wide temperature range and pack accordingly for both cold and mild weather.
In Coulee City in December, the precipitation amount is 40 mm (1.6 in) over the course of 9 days.
In Coulee City in December humidity is 86%. With an average temperature of 0°C (32°F), this humidity feels like a biting chill that seeps into your bones, making travel feel uncomfortable and damp, as the cold air combines with the moisture to create a brisk sensation that may deter outdoor exploration.
In Coulee City 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 Coulee City, you can visit Hourly UV Index in Coulee City.
UV Risk Categories
Weather in Coulee City varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Coulee City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 48 mm (1.9 inches) | 85% | low |
| February Weather | -1°C (31°F) | 38 mm (1.5 inches) | 86% | moderate |
| March Weather | 6°C (42°F) | 31 mm (1.2 inches) | 86% | moderate |
| April Weather | 11°C (52°F) | 28 mm (1.1 inches) | 82% | high |
| May Weather | 17°C (63°F) | 18 mm (0.7 inches) | 77% | very high |
| June Weather | 21°C (71°F) | 8 mm (0.3 inches) | 79% | very high |
| July Weather | 26°C (78°F) | 2 mm (0.1 inches) | 77% | very high |
| August Weather | 25°C (77°F) | 4 mm (0.2 inches) | 62% | very high |
| September Weather | 19°C (66°F) | 16 mm (0.6 inches) | 60% | high |
| October Weather | 10°C (50°F) | 33 mm (1.3 inches) | 80% | moderate |
| November Weather | 4°C (40°F) | 40 mm (1.6 inches) | 87% | moderate |
| December Weather | 0°C (32°F) | 40 mm (1.6 inches) | 86% | low |