Last updated: June 24, 2025
In West Branch, United States, the average temperature in December hovers around -2°C (28°F), with a wide range from a brisk -23°C (-10°F) to a surprisingly mild 15°C (60°F). During this month, expect 60 mm (2.4 in) of precipitation spread over 10 days, contributing to an average humidity of 89%. Dress warmly and be prepared for a mix of chilly breezes and occasional wet weather!
In December in West Branch, the average temperature is -2°C (28°F), with maximums reaching 15°C (60°F) and minimums plummeting to as low as -23°C (-10°F). Regardless of the temperatures, be sure to pack accordingly to enjoy your adventure comfortably.
In West Branch in December, the precipitation amount is 60 mm (2.4 in) accumulated over a period of 10 days.
In West Branch in December, humidity is 89%. With an average temperature of -2°C (28°F), this humidity feels like a heavy blanket, making it difficult to stay warm while traveling outdoors.
In West Branch 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 West Branch, you can visit Hourly UV Index in West Branch.
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) | 50 mm (2.0 inches) | 92% | low |
| February Weather | -6°C (22°F) | 51 mm (2.0 inches) | 91% | moderate |
| March Weather | 0°C (32°F) | 54 mm (2.1 inches) | 87% | moderate |
| April Weather | 6°C (43°F) | 93 mm (3.6 inches) | 85% | very high |
| May Weather | 13°C (56°F) | 110 mm (4.3 inches) | 79% | very high |
| June Weather | 19°C (66°F) | 108 mm (4.2 inches) | 75% | very high |
| July Weather | 22°C (72°F) | 91 mm (3.6 inches) | 75% | very high |
| August Weather | 20°C (69°F) | 91 mm (3.6 inches) | 75% | very high |
| September Weather | 16°C (62°F) | 75 mm (3.0 inches) | 79% | high |
| October Weather | 10°C (50°F) | 122 mm (4.8 inches) | 85% | moderate |
| November Weather | 2°C (36°F) | 58 mm (2.3 inches) | 88% | moderate |
| December Weather | -2°C (28°F) | 60 mm (2.4 inches) | 89% | low |