Last updated: June 24, 2025
In December, the average temperature in Roanoke, United States hovers around 1°C (35°F). Expect a chill in the air, with minimums plunging to -21°C (-6°F) and occasional highs reaching up to 17°C (63°F). During this month, you'll likely encounter 61 mm (2.4 in) of precipitation over about 9 days, accompanied by a damp average humidity of 86%.
In December in Roanoke, the average temperature is 1°C (35°F). The maximum can reach 17°C (63°F), while the minimum can drop as low as -21°C (-6°F). Be prepared for a wide range of temperatures and pack accordingly when traveling to Roanoke in December.
In Roanoke in December, the precipitation amount is 61 mm (2.4 in) spread over 9 days.
In Roanoke in December, humidity is 86%. With an average temperature of 1°C (35°F), this humidity feels like a biting chill that wraps around you, making outdoor exploration uncomfortable and requiring extra layers to stay warm while navigating the damp air.
In Roanoke 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 Roanoke, you can visit Hourly UV Index in Roanoke.
UV Risk Categories
Weather in Roanoke varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Roanoke, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 74 mm (2.9 inches) | 85% | moderate |
| February Weather | -1°C (31°F) | 80 mm (3.2 inches) | 85% | moderate |
| March Weather | 5°C (41°F) | 103 mm (4.0 inches) | 86% | high |
| April Weather | 10°C (50°F) | 94 mm (3.7 inches) | 87% | very high |
| May Weather | 17°C (63°F) | 127 mm (5.0 inches) | 81% | very high |
| June Weather | 22°C (73°F) | 115 mm (4.5 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 105 mm (4.1 inches) | 81% | very high |
| August Weather | 23°C (74°F) | 95 mm (3.8 inches) | 79% | very high |
| September Weather | 20°C (68°F) | 63 mm (2.5 inches) | 78% | very high |
| October Weather | 13°C (56°F) | 103 mm (4.0 inches) | 81% | high |
| November Weather | 5°C (41°F) | 82 mm (3.2 inches) | 89% | moderate |
| December Weather | 1°C (35°F) | 61 mm (2.4 inches) | 86% | low |