Last updated: June 24, 2025
In December, the average temperature in Sheffield, United States hovers around 0°C (33°F), making for a chilly atmosphere. Temperatures can drop as low as -21°C (-6°F) and, on rare occasions, rise to a pleasant 20°C (69°F). Expect about 49 mm (1.9 in) of precipitation spread over 6 days, while humidity lingers at a damp 84%. Stay warm and prepare for a mix of weather!
In December in Sheffield, the average temperature is 0°C (33°F). Maximums can reach 20°C (69°F) and minimums can be as low as -21°C (-6°F). It's essential to pack accordingly, as the weather can vary significantly, ranging from chilly to pleasantly warm.
In Sheffield in December, the precipitation amount is 49 mm (1.9 in) over the course of 6 days.
In Sheffield in December humidity is 84%. With average temperature 0°C (33°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less enjoyable and travel plans challenging.
In Sheffield 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 Sheffield, you can visit Hourly UV Index in Sheffield.
UV Risk Categories
Weather in Sheffield varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sheffield, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 57 mm (2.2 inches) | 82% | moderate |
| February Weather | -3°C (27°F) | 64 mm (2.5 inches) | 83% | moderate |
| March Weather | 5°C (41°F) | 101 mm (4.0 inches) | 84% | high |
| April Weather | 10°C (50°F) | 115 mm (4.5 inches) | 85% | very high |
| May Weather | 17°C (63°F) | 161 mm (6.4 inches) | 79% | very high |
| June Weather | 23°C (73°F) | 160 mm (6.3 inches) | 82% | extreme |
| July Weather | 25°C (76°F) | 103 mm (4.0 inches) | 80% | very high |
| August Weather | 23°C (74°F) | 72 mm (2.8 inches) | 81% | very high |
| September Weather | 20°C (69°F) | 103 mm (4.0 inches) | 80% | very high |
| October Weather | 13°C (55°F) | 129 mm (5.1 inches) | 82% | high |
| November Weather | 4°C (39°F) | 54 mm (2.1 inches) | 88% | moderate |
| December Weather | 0°C (33°F) | 49 mm (1.9 inches) | 84% | low |