December Weather in Sheffield, United States

Last updated: June 24, 2025

In December, the average temperature in Sheffield, United States hovers around -3°C (28°F). Be prepared for a wide range of temperatures, as it can dip as low as -22°C (-8°F) or soar to a pleasant 21°C (69°F). Expect about 36 mm (1.4 in) of precipitation spread over 5 days, with an average humidity level of 83%, making it a rather chilly and damp time of year.

December Temperature in Sheffield

In December in Sheffield, the average temperature is -3°C (28°F), with maximums reaching up to 21°C (69°F) and minimums plummeting as low as -22°C (-8°F). Be prepared for a wide range of temperatures when traveling during this time.

December Weather in Sheffield: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sheffield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sheffield, December typically has an average temperature of -3°C (28°F), with highs reaching up to 21°C (69°F) and lows dropping to around -22°C (-8°F).

Data source: Temperature data for Sheffield generated using information from the Copernicus Climate Change Service.

December Precipitation in Sheffield

In Sheffield in December, the precipitation amount is 36 mm (1.4 in) over the course of 5 days.

December Precipitation Trends in Sheffield

The chart displays monthly precipitation patterns in Sheffield, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Sheffield, December typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Sheffield

In Sheffield in December humidity is 83%. With an average temperature of -3°C (28°F), this humidity feels like a damp chill that seeps into your bones, making it crucial to bundle up while traveling.

December Average Humidity in Sheffield

This chart illustrates the average monthly humidity levels in Sheffield, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Sheffield is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sheffield

In Sheffield 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 Sheffield, you can check the information here.

Maximum UV Index Levels in Sheffield for December

The chart shows the monthly maximum UV Index (UVI) for Sheffield in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Sheffield typically reaches 3, which falls under the moderate exposure category.

Data source: Sheffield December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Sheffield Compares to Other Months

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.

This table compares monthly weather conditions in Sheffield, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	37 mm (1.5 inches)	82%	moderate
February Weather	-8°C (19°F)	48 mm (1.9 inches)	84%	moderate
March Weather	2°C (35°F)	73 mm (2.9 inches)	80%	moderate
April Weather	8°C (46°F)	80 mm (3.2 inches)	81%	very high
May Weather	16°C (60°F)	162 mm (6.4 inches)	74%	very high
June Weather	22°C (73°F)	124 mm (4.9 inches)	80%	extreme
July Weather	24°C (75°F)	99 mm (3.9 inches)	80%	very high
August Weather	22°C (71°F)	117 mm (4.6 inches)	77%	very high
September Weather	19°C (66°F)	106 mm (4.2 inches)	75%	very high
October Weather	10°C (50°F)	120 mm (4.7 inches)	80%	moderate
November Weather	2°C (35°F)	49 mm (1.9 inches)	87%	moderate
December Weather	-3°C (28°F)	36 mm (1.4 inches)	83%	moderate