Last updated: June 24, 2025
In December, the average temperature in Mooresville, United States is a brisk 3°C (37°F). Expect the mercury to dip as low as -18°C (-1°F) on chilly nights, while daytime highs can reach a pleasant 19°C (66°F). Be prepared for some rain, with 89 mm (3.5 in) of precipitation spread over 10 days. With an average humidity of 87%, it’s wise to dress in layers to stay comfortable in this damp climate!
In December in Mooresville, the average temperature is 3°C (37°F). The maximum can reach 19°C (66°F) and the minimum can be as low as -18°C (-1°F). Travelers should be prepared for a wide temperature range, ensuring they bring both warm clothing for the cold days and lighter layers for the milder afternoons.
In Mooresville in December, the precipitation amount is 89 mm (3.5 in) over a period of 10 days.
In Mooresville 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 Mooresville 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 Mooresville, you can check the information here.
UV Risk Categories
Weather in Mooresville varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mooresville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 85 mm (3.4 inches) | 87% | moderate |
| February Weather | 1°C (35°F) | 98 mm (3.8 inches) | 85% | moderate |
| March Weather | 6°C (44°F) | 132 mm (5.2 inches) | 86% | high |
| April Weather | 11°C (53°F) | 104 mm (4.1 inches) | 84% | very high |
| May Weather | 18°C (65°F) | 129 mm (5.1 inches) | 79% | very high |
| June Weather | 23°C (74°F) | 117 mm (4.6 inches) | 82% | extreme |
| July Weather | 25°C (77°F) | 108 mm (4.2 inches) | 79% | very high |
| August Weather | 23°C (74°F) | 101 mm (4.0 inches) | 70% | very high |
| September Weather | 21°C (70°F) | 78 mm (3.1 inches) | 69% | very high |
| October Weather | 14°C (58°F) | 100 mm (3.9 inches) | 76% | high |
| November Weather | 6°C (42°F) | 99 mm (3.9 inches) | 88% | moderate |
| December Weather | 3°C (37°F) | 89 mm (3.5 inches) | 87% | moderate |