Last updated: June 24, 2025
In Logan, United States, the average temperature in December is a brisk -5°C (23°F). During this time, you can expect minimum temperatures dropping to -21°C (-6°F) and occasional highs reaching up to 10°C (51°F). Prepare for about 60 mm (2.3 in) of precipitation spread over 10 days, while the average humidity hovers around a significant 88%. Stay warm and dry!
In December in Logan, the average temperature is -5°C (23°F), with maximums potentially reaching 10°C (51°F) and minimums plummeting to as low as -21°C (-6°F). Travelers should be prepared for cold weather conditions and dress appropriately for outdoor activities.
In Logan in December, the precipitation amount is 60 mm (2.3 in) over a span of 10 days.
In Logan in December humidity is 88%. With an average temperature of -5°C (23°F), this humidity feels like an icy blanket enveloping you, making travel uncomfortable as the cold damp air seeps through layers of clothing, chilling you to the bone.
In Logan 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 Logan, you can check the information here.
UV Risk Categories
Weather in Logan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Logan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 67 mm (2.7 inches) | 91% | moderate |
| February Weather | -4°C (26°F) | 86 mm (3.4 inches) | 92% | moderate |
| March Weather | 1°C (35°F) | 64 mm (2.5 inches) | 84% | very high |
| April Weather | 5°C (40°F) | 78 mm (3.1 inches) | 74% | very high |
| May Weather | 10°C (50°F) | 67 mm (2.7 inches) | 62% | extreme |
| June Weather | 17°C (63°F) | 28 mm (1.1 inches) | 56% | extreme |
| July Weather | 22°C (71°F) | 22 mm (0.9 inches) | 44% | extreme |
| August Weather | 20°C (69°F) | 27 mm (1.1 inches) | 37% | extreme |
| September Weather | 15°C (59°F) | 35 mm (1.4 inches) | 46% | very high |
| October Weather | 6°C (43°F) | 46 mm (1.8 inches) | 67% | high |
| November Weather | 1°C (33°F) | 56 mm (2.2 inches) | 84% | moderate |
| December Weather | -5°C (23°F) | 60 mm (2.3 inches) | 88% | moderate |