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December Weather in South Gastonia, United States

Last updated: June 24, 2025

In December, the average temperature in South Gastonia, United States hovers around 8°C (47°F). While you might experience chilly lows of -7°C (19°F), the mercury can rise up to a pleasant 25°C (77°F). Be prepared for some moisture, as 126 mm (5.0 in) of precipitation typically falls over about 10 days. With an average humidity level of 87%, don't forget to bring your umbrella!

December Temperature in South Gastonia

In December in South Gastonia, the average temperature is 8°C (47°F), with maximums reaching up to 25°C (77°F) and minimums dropping as low as -7°C (19°F). This varied climate makes it essential for travelers to pack layers for both warm and chilly weather.

December Weather in South Gastonia: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in South Gastonia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Gastonia, December typically has an average temperature of 8°C (47°F), with highs reaching up to 25°C (77°F) and lows dropping to around -7°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec434853627076807874645046
Data source: Temperature data for South Gastonia generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in South Gastonia

In South Gastonia in December, the total precipitation amount is 126 mm (5.0 in) spread over a duration of 10 days.

December Precipitation Trends in South Gastonia

The chart displays monthly precipitation patterns in South Gastonia, 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 South Gastonia, December typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec9412594117120929811913010896126
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in South Gastonia

In South Gastonia in December, humidity is 87%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortably muggy despite the cool air.

December Average Humidity in South Gastonia

This chart illustrates the average monthly humidity levels in South Gastonia, 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 South Gastonia is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%82%83%82%80%74%75%79%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in South Gastonia

In South Gastonia 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 South Gastonia, you can check the information here.

Maximum UV Index Levels in South Gastonia for December

The chart shows the monthly maximum UV Index (UVI) for South Gastonia 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 South Gastonia typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101111109853
Data source: South Gastonia 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 South Gastonia Compares to Other Months

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

This table compares monthly weather conditions in South Gastonia, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)94 mm (3.7 inches)86%moderate
February Weather9°C (49°F)124 mm (4.9 inches)85%high
March Weather12°C (54°F)94 mm (3.7 inches)84%very high
April Weather16°C (62°F)117 mm (4.6 inches)82%very high
May Weather21°C (71°F)120 mm (4.7 inches)83%very high
June Weather25°C (77°F)92 mm (3.6 inches)82%extreme
July Weather27°C (80°F)98 mm (3.9 inches)80%extreme
August Weather26°C (78°F)119 mm (4.7 inches)74%very high
September Weather23°C (74°F)130 mm (5.1 inches)75%very high
October Weather18°C (65°F)107 mm (4.2 inches)79%very high
November Weather10°C (51°F)96 mm (3.8 inches)87%moderate
December Weather8°C (47°F)126 mm (5.0 inches)87%moderate

Compare South Gastonia's Climate with Cities Worldwide