Last updated: June 24, 2025
In Aurora, United States, the average temperature in December hovers around 0°C (32°F), with extremes ranging from a brisk -22°C (-8°F) to a surprisingly warm 21°C (70°F). Expect about 42 mm (1.6 in) of precipitation spread over 4 days, resulting in a high average humidity of 79%. Prepare for a month that features both chill and the occasional warmth!
In December in Aurora, the average temperature is 0°C (32°F). The maximum can reach 21°C (70°F), while the minimum can drop as low as -22°C (-8°F). It's advisable to pack layers and prepare for both warm days and cold nights when traveling during this time.
In Aurora in December, the precipitation amount is 42 mm (1.6 in) spread over a period of 4 days.
In Aurora in December humidity is 79%. With an average temperature of 0°C (32°F), this humidity feels like a heavy blanket wrapping around you, making every step outside feel like a challenge while also leaving a chill that cuts through your bones—it's a reminder to dress warmly yet prepare for the dampness that clings to your clothes, making travel less comfortable and more of an adventure.
In Aurora 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 Aurora, you can check the information here.
UV Risk Categories
Weather in Aurora varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Aurora, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 30 mm (1.2 inches) | 73% | moderate |
| February Weather | -3°C (26°F) | 21 mm (0.8 inches) | 81% | moderate |
| March Weather | 5°C (41°F) | 88 mm (3.5 inches) | 69% | high |
| April Weather | 10°C (50°F) | 53 mm (2.1 inches) | 71% | very high |
| May Weather | 17°C (62°F) | 158 mm (6.2 inches) | 80% | very high |
| June Weather | 24°C (75°F) | 93 mm (3.7 inches) | 83% | extreme |
| July Weather | 25°C (78°F) | 65 mm (2.6 inches) | 84% | very high |
| August Weather | 24°C (75°F) | 76 mm (3.0 inches) | 84% | very high |
| September Weather | 21°C (70°F) | 62 mm (2.4 inches) | 77% | very high |
| October Weather | 11°C (52°F) | 84 mm (3.3 inches) | 72% | high |
| November Weather | 5°C (41°F) | 22 mm (0.9 inches) | 80% | moderate |
| December Weather | 0°C (32°F) | 42 mm (1.6 inches) | 79% | moderate |