Last updated: June 24, 2025
In December, the average temperature in Martinsville, United States hovers around 3°C (37°F). Expect a chilly backdrop where temperatures can dip as low as -18°C (-1°F) and rise to a pleasant 18°C (65°F). During this month, you'll find 88 mm (3.5 in) of precipitation spread over 10 days, contributing to a high average humidity of 87%. Be prepared for a cool and damp experience!
In December in Martinsville, the average temperature is 3°C (37°F). Maximums can reach 18°C (65°F), and minimums can be as low as -18°C (-1°F). Be prepared for a wide range of temperatures and dress accordingly when traveling to Martinsville during this month.
In Martinsville in December, the precipitation amount is 88 mm (3.5 in) spread over a duration of 10 days.
In Martinsville in December, humidity is 87%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating proper layers to stay warm while navigating the wet conditions.
In Martinsville 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 Martinsville, you can check the information here.
UV Risk Categories
Weather in Martinsville varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Martinsville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 86 mm (3.4 inches) | 87% | moderate |
| February Weather | 1°C (34°F) | 96 mm (3.8 inches) | 85% | moderate |
| March Weather | 6°C (43°F) | 129 mm (5.1 inches) | 86% | high |
| April Weather | 11°C (53°F) | 102 mm (4.0 inches) | 84% | very high |
| May Weather | 18°C (65°F) | 131 mm (5.2 inches) | 79% | very high |
| June Weather | 23°C (74°F) | 121 mm (4.8 inches) | 82% | extreme |
| July Weather | 25°C (77°F) | 108 mm (4.3 inches) | 79% | very high |
| August Weather | 23°C (74°F) | 107 mm (4.2 inches) | 70% | very high |
| September Weather | 21°C (70°F) | 74 mm (2.9 inches) | 69% | very high |
| October Weather | 14°C (58°F) | 100 mm (3.9 inches) | 76% | high |
| November Weather | 5°C (42°F) | 98 mm (3.8 inches) | 88% | moderate |
| December Weather | 3°C (37°F) | 88 mm (3.5 inches) | 87% | moderate |