December Weather in Glen Allen, United States

Last updated: June 24, 2025

In December, the average temperature in Glen Allen, United States hovers around 6°C (44°F). Expect a chilly minimum of -10°C (15°F), while the warmest days can reach up to 22°C (72°F). Rainfall is moderate, with 93 mm (3.7 in) expected over 9 days, accompanied by a high average humidity of 85%.

December Temperature in Glen Allen

In December in Glen Allen, the average temperature is 6°C (44°F). Maximums can reach 22°C (72°F), while minimums can drop as low as -10°C (15°F). It's advisable to pack layers to stay comfortable during your travels.

December Weather in Glen Allen: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Glen Allen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glen Allen, December typically has an average temperature of 6°C (44°F), with highs reaching up to 22°C (72°F) and lows dropping to around -10°C (15°F).

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

December Precipitation in Glen Allen

In Glen Allen in December, the precipitation amount is 93 mm (3.7 in) over the course of 9 days.

December Precipitation Trends in Glen Allen

The chart displays monthly precipitation patterns in Glen Allen, 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 Glen Allen, December typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 9 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 Glen Allen

In Glen Allen in December, humidity is 85%. With an average temperature of 6°C (44°F), this humidity feels like a chilly dampness that seeps into your clothes, making travel uncomfortable and adding an extra layer of chill to the air.

December Average Humidity in Glen Allen

This chart illustrates the average monthly humidity levels in Glen Allen, 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 Glen Allen is approximately 85%, 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 Glen Allen

In Glen Allen 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 Glen Allen, you can check the information here.

Maximum UV Index Levels in Glen Allen for December

The chart shows the monthly maximum UV Index (UVI) for Glen Allen 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 Glen Allen typically reaches 3, which falls under the moderate exposure category.

Data source: Glen Allen 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 Glen Allen Compares to Other Months

Weather in Glen Allen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Glen Allen, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Glen Allen, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	64 mm (2.5 inches)	84%	moderate
February Weather	7°C (45°F)	96 mm (3.8 inches)	84%	high
March Weather	10°C (50°F)	75 mm (2.9 inches)	84%	high
April Weather	15°C (60°F)	106 mm (4.2 inches)	82%	very high
May Weather	20°C (69°F)	105 mm (4.1 inches)	82%	very high
June Weather	24°C (76°F)	129 mm (5.1 inches)	83%	very high
July Weather	27°C (81°F)	102 mm (4.0 inches)	79%	very high
August Weather	26°C (78°F)	172 mm (6.8 inches)	77%	very high
September Weather	23°C (73°F)	97 mm (3.8 inches)	75%	very high
October Weather	17°C (64°F)	122 mm (4.8 inches)	81%	high
November Weather	10°C (49°F)	72 mm (2.8 inches)	87%	moderate
December Weather	6°C (44°F)	93 mm (3.7 inches)	85%	moderate