December Weather in Raleigh, United States

Last updated: June 24, 2025

In December, the average temperature in Raleigh, United States hovers around 8°C (47°F). Visitors can expect a minimum of -7°C (20°F) and a pleasant maximum reaching 23°C (74°F). Be prepared for 107 mm (4.2 in) of precipitation spread over approximately 10 days, accompanied by a notably high average humidity of 86%.

December Temperature in Raleigh

In December in Raleigh, the average temperature is 8°C (47°F), with maximums reaching 23°C (74°F) and minimums dropping as low as -7°C (20°F). This range makes it essential for travelers to pack layers to adapt to the varying weather conditions.

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

The chart illustrates December temperature patterns in Raleigh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Raleigh, December typically has an average temperature of 8°C (47°F), with highs reaching up to 23°C (74°F) and lows dropping to around -7°C (20°F).

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

December Precipitation in Raleigh

In Raleigh in December, the precipitation amount is 107 mm (4.2 in) accumulated over a period of 10 days.

December Precipitation Trends in Raleigh

The chart displays monthly precipitation patterns in Raleigh, 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 Raleigh, December typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 10 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 Raleigh

In Raleigh in December, humidity is 86%. With an average temperature of 8°C (47°F), this humidity feels like a chilling damp that penetrates your clothes, making outdoor adventures less enjoyable and encouraging you to seek warmth indoors rather than explore the sights.

December Average Humidity in Raleigh

This chart illustrates the average monthly humidity levels in Raleigh, 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 Raleigh is approximately 86%, 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 Raleigh

In Raleigh 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 Raleigh, you can check the information here.

Maximum UV Index Levels in Raleigh for December

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

Data source: Raleigh 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 Raleigh Compares to Other Months

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

This table compares monthly weather conditions in Raleigh, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	93 mm (3.6 inches)	85%	moderate
February Weather	9°C (49°F)	107 mm (4.2 inches)	82%	high
March Weather	12°C (53°F)	80 mm (3.2 inches)	81%	very high
April Weather	17°C (62°F)	114 mm (4.5 inches)	80%	very high
May Weather	22°C (71°F)	114 mm (4.5 inches)	81%	extreme
June Weather	25°C (76°F)	131 mm (5.2 inches)	81%	extreme
July Weather	27°C (81°F)	117 mm (4.6 inches)	81%	extreme
August Weather	26°C (79°F)	141 mm (5.6 inches)	80%	very high
September Weather	23°C (75°F)	140 mm (5.5 inches)	79%	very high
October Weather	18°C (66°F)	85 mm (3.4 inches)	80%	very high
November Weather	11°C (51°F)	83 mm (3.3 inches)	85%	moderate
December Weather	8°C (47°F)	107 mm (4.2 inches)	86%	moderate