Last updated: June 24, 2025
In December, the average temperature in Alexandria, United States hovers around -7°C (20°F), with extremes that can drop to a chilling -29°C (-21°F) or rise to a milder 9°C (49°F). Expect about 43 mm (1.7 in) of precipitation over 8 days, contributing to an average humidity level of 84%. Prepare for a true winter experience!
In December in Alexandria, the average temperature is -7°C (20°F), with maximums reaching 9°C (49°F) and minimums plummeting to as low as -29°C (-21°F). Travelers should be prepared for extremely cold conditions and dress in warm layers when visiting during this time.
In Alexandria in December, the total precipitation amount is 43 mm (1.7 in) over the course of 8 days.
In Alexandria in December, humidity is 84%. With an average temperature of -7°C (20°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.
In Alexandria 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 Alexandria, you can visit Hourly UV Index in Alexandria.
UV Risk Categories
Weather in Alexandria varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Alexandria, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -11°C (12°F) | 19 mm (0.8 inches) | 85% | low |
| February Weather | -11°C (12°F) | 21 mm (0.8 inches) | 89% | moderate |
| March Weather | -2°C (29°F) | 36 mm (1.4 inches) | 81% | moderate |
| April Weather | 4°C (40°F) | 66 mm (2.6 inches) | 82% | high |
| May Weather | 13°C (56°F) | 81 mm (3.2 inches) | 76% | very high |
| June Weather | 21°C (69°F) | 79 mm (3.1 inches) | 81% | very high |
| July Weather | 22°C (73°F) | 109 mm (4.3 inches) | 82% | very high |
| August Weather | 20°C (69°F) | 118 mm (4.6 inches) | 83% | very high |
| September Weather | 16°C (61°F) | 93 mm (3.7 inches) | 82% | high |
| October Weather | 7°C (45°F) | 89 mm (3.5 inches) | 82% | moderate |
| November Weather | -1°C (30°F) | 26 mm (1.0 inches) | 87% | moderate |
| December Weather | -7°C (20°F) | 43 mm (1.7 inches) | 84% | low |