Last updated: June 24, 2025
In December, the average temperature in Webster, United States hovers around -6°C (22°F), with extremes ranging from a chilling -32°C (-25°F) to a mild 14°C (58°F). Expect about 59 mm (2.3 in) of precipitation over 8 days, contributing to an average humidity of 85%. Embrace the cold and prepare for brisk, invigorating days!
In December in Webster, the average temperature is -6°C (22°F). Maximums can reach 14°C (58°F) and minimums can be as low as -32°C (-25°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm layers and lighter clothing for fluctuating conditions.
In Webster in December, the total precipitation amount is 59 mm (2.3 in) spread over 8 days.
In Webster in December humidity is 85%. With an average temperature of -6°C (22°F), this humidity feels like an icy mist clinging to your skin, making outdoor activities uncomfortably chilly and causing your breath to cloud in the cold air, leaving you yearning for warmth and cozy indoor retreats while traveling.
In Webster 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 Webster, you can visit Hourly UV Index in Webster.
UV Risk Categories
Weather in Webster varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Webster, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (14°F) | 22 mm (0.9 inches) | 88% | low |
| February Weather | -10°C (15°F) | 32 mm (1.3 inches) | 89% | moderate |
| March Weather | -1°C (30°F) | 45 mm (1.8 inches) | 86% | moderate |
| April Weather | 5°C (41°F) | 86 mm (3.4 inches) | 85% | high |
| May Weather | 13°C (56°F) | 97 mm (3.8 inches) | 79% | very high |
| June Weather | 20°C (68°F) | 88 mm (3.4 inches) | 80% | very high |
| July Weather | 22°C (72°F) | 109 mm (4.3 inches) | 80% | very high |
| August Weather | 20°C (69°F) | 120 mm (4.7 inches) | 78% | very high |
| September Weather | 17°C (62°F) | 90 mm (3.6 inches) | 80% | high |
| October Weather | 8°C (47°F) | 97 mm (3.8 inches) | 84% | moderate |
| November Weather | 0°C (32°F) | 41 mm (1.6 inches) | 89% | moderate |
| December Weather | -6°C (22°F) | 59 mm (2.3 inches) | 85% | low |