Last updated: June 24, 2025
In December, the average temperature in Aurora, United States hovers around 1°C (33°F). Expect a chilly range, with minimums plummeting to -16°C (4°F) and maximums reaching up to 18°C (64°F). Be prepared for 96 mm (3.8 in) of precipitation spread over 16 days, and a high average humidity of 86% that adds to the cool atmosphere.
In December in Aurora, the average temperature is 1°C (33°F). Maximums can reach 18°C (64°F), while minimums can drop to -16°C (4°F). Travelers should be prepared for significant temperature fluctuations and pack accordingly for both cold and mild weather.
In Aurora in December, the total precipitation amount is 96 mm (3.8 in) recorded over 16 days.
In Aurora in December humidity is 86%. With average temperature 1°C (33°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and necessitating extra layers for warmth to counteract the dampness in the air.
In Aurora 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 Aurora, you can visit Hourly UV Index in Aurora.
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 (28°F) | 83 mm (3.3 inches) | 90% | moderate |
| February Weather | -2°C (29°F) | 84 mm (3.3 inches) | 90% | moderate |
| March Weather | 2°C (35°F) | 79 mm (3.1 inches) | 87% | high |
| April Weather | 8°C (46°F) | 113 mm (4.4 inches) | 88% | very high |
| May Weather | 14°C (58°F) | 115 mm (4.5 inches) | 82% | very high |
| June Weather | 20°C (68°F) | 84 mm (3.3 inches) | 79% | very high |
| July Weather | 23°C (73°F) | 138 mm (5.4 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 93 mm (3.7 inches) | 76% | very high |
| September Weather | 18°C (65°F) | 80 mm (3.2 inches) | 78% | very high |
| October Weather | 12°C (55°F) | 147 mm (5.8 inches) | 84% | high |
| November Weather | 5°C (41°F) | 92 mm (3.6 inches) | 89% | moderate |
| December Weather | 1°C (33°F) | 96 mm (3.8 inches) | 86% | low |