Last updated: June 24, 2025
In December, the average temperature in Mountain Road, United States is a cool 7°C (45°F). Expect temperatures to dip as low as -9°C (16°F) and rise to a maximum of 23°C (73°F). With an average humidity of 85%, prepare for a damp atmosphere, as 96 mm (3.8 in) of precipitation typically graces the area over 9 days.
In December in Mountain Road, the average temperature is 7°C (45°F), with maximums reaching 23°C (73°F) and minimums dropping as low as -9°C (16°F). Be prepared for a wide range of temperatures when traveling to Mountain Road during this month.
In Mountain Road in December, the total precipitation amount is 96 mm (3.8 in) spread over a period of 9 days.
In Mountain Road in December, humidity is 85%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.
In Mountain Road 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 Mountain Road, you can check the information here.
UV Risk Categories
Weather in Mountain Road varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mountain Road, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 73 mm (2.9 inches) | 84% | moderate |
| February Weather | 8°C (46°F) | 108 mm (4.2 inches) | 84% | high |
| March Weather | 11°C (51°F) | 72 mm (2.8 inches) | 84% | high |
| April Weather | 16°C (61°F) | 120 mm (4.7 inches) | 82% | very high |
| May Weather | 21°C (69°F) | 110 mm (4.3 inches) | 82% | extreme |
| June Weather | 24°C (76°F) | 92 mm (3.6 inches) | 83% | extreme |
| July Weather | 27°C (81°F) | 69 mm (2.7 inches) | 79% | very high |
| August Weather | 26°C (79°F) | 109 mm (4.3 inches) | 77% | very high |
| September Weather | 23°C (74°F) | 98 mm (3.9 inches) | 75% | very high |
| October Weather | 18°C (64°F) | 106 mm (4.2 inches) | 81% | very high |
| November Weather | 10°C (50°F) | 75 mm (3.0 inches) | 87% | moderate |
| December Weather | 7°C (45°F) | 96 mm (3.8 inches) | 85% | moderate |