December Weather in Graniteville, United States

Last updated: June 24, 2025

In December, the average temperature in Graniteville, United States is a chill 11°C (51°F), with a minimum dipping to -6°C (22°F) and the possibility of soaring up to 28°C (82°F). Expect about 119 mm (4.7 in) of precipitation spread over 10 days, making for a humid atmosphere with an average humidity of 87%.

December Temperature in Graniteville

In December in Graniteville, the average temperature is 11°C (51°F), with maximums reaching 28°C (82°F) and minimums dropping as low as -6°C (22°F). Travelers should be prepared for a wide range of temperatures, making layering essential for comfort throughout the day.

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

The chart illustrates December temperature patterns in Graniteville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Graniteville, December typically has an average temperature of 11°C (51°F), with highs reaching up to 28°C (82°F) and lows dropping to around -6°C (22°F).

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

December Precipitation in Graniteville

In Graniteville in December, the total precipitation amount is 119 mm (4.7 in) over the span of 10 days.

December Precipitation Trends in Graniteville

The chart displays monthly precipitation patterns in Graniteville, 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 Graniteville, December typically receives around 119 mm (4.7 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 Graniteville

In Graniteville in December humidity is 87%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill wrapping around you, making outdoor excursions a bit uncomfortable as the air feels thick and heavy, urging you to seek shelter more often than not.

December Average Humidity in Graniteville

This chart illustrates the average monthly humidity levels in Graniteville, 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 Graniteville is approximately 87%, 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 Graniteville

In Graniteville in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Graniteville for better planning.

Maximum UV Index Levels in Graniteville for December

The chart shows the monthly maximum UV Index (UVI) for Graniteville 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 Graniteville typically reaches 4, which falls under the moderate exposure category.

Data source: Graniteville 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 Graniteville Compares to Other Months

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

This table compares monthly weather conditions in Graniteville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	86 mm (3.4 inches)	86%	moderate
February Weather	12°C (54°F)	114 mm (4.5 inches)	81%	high
March Weather	15°C (59°F)	83 mm (3.3 inches)	81%	very high
April Weather	19°C (66°F)	113 mm (4.4 inches)	79%	very high
May Weather	23°C (74°F)	102 mm (4.0 inches)	75%	extreme
June Weather	26°C (79°F)	106 mm (4.2 inches)	75%	extreme
July Weather	28°C (82°F)	132 mm (5.2 inches)	80%	extreme
August Weather	27°C (81°F)	137 mm (5.4 inches)	81%	extreme
September Weather	25°C (78°F)	76 mm (3.0 inches)	83%	very high
October Weather	21°C (69°F)	81 mm (3.2 inches)	78%	very high
November Weather	13°C (55°F)	62 mm (2.4 inches)	85%	high
December Weather	11°C (51°F)	119 mm (4.7 inches)	87%	moderate