Last updated: June 24, 2025
In December, the average temperature in West Branch, United States hovers around -1°C (31°F), with the potential to dip as low as -22°C (-8°F) or rise to a pleasant 22°C (71°F). Expect a total precipitation of 47 mm (1.8 in) spread over 5 days, and prepare for a relatively high average humidity of 84%.
In December in West Branch, the average temperature is -1°C (31°F). The maximum can reach 22°C (71°F) and the minimum can be as low as -22°C (-8°F). Travelers should be prepared for a wide range of temperatures and dress in layers to ensure comfort during their visit.
In West Branch in December, the total precipitation amount is 47 mm (1.8 in) over the course of 5 days.
In West Branch in December humidity is 84%. With an average temperature of -1°C (31°F), this humidity feels like a biting chill that seeps through layers of clothing, making outdoor excursions brisk and invigorating, yet challenging for those unaccustomed to such damp conditions.
In West Branch 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 West Branch, you can check the information here.
UV Risk Categories
Weather in West Branch varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in West Branch, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 49 mm (1.9 inches) | 81% | moderate |
| February Weather | -4°C (24°F) | 58 mm (2.3 inches) | 81% | moderate |
| March Weather | 4°C (39°F) | 80 mm (3.1 inches) | 81% | high |
| April Weather | 9°C (49°F) | 87 mm (3.4 inches) | 82% | very high |
| May Weather | 17°C (62°F) | 135 mm (5.3 inches) | 78% | very high |
| June Weather | 23°C (73°F) | 127 mm (5.0 inches) | 81% | extreme |
| July Weather | 25°C (76°F) | 77 mm (3.0 inches) | 79% | very high |
| August Weather | 23°C (73°F) | 87 mm (3.4 inches) | 77% | very high |
| September Weather | 20°C (68°F) | 132 mm (5.2 inches) | 78% | very high |
| October Weather | 12°C (53°F) | 131 mm (5.2 inches) | 78% | high |
| November Weather | 3°C (38°F) | 50 mm (2.0 inches) | 87% | moderate |
| December Weather | -1°C (31°F) | 47 mm (1.8 inches) | 84% | moderate |