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December Weather in Williamston, United States

Last updated: June 24, 2025

In December, the average temperature in Williamston, United States hovers around 9°C (48°F), with temperatures ranging from a chilly -7°C (20°F) to a mild 24°C (76°F). Expect 124 mm (4.9 in) of precipitation over 10 days, accompanied by a high average humidity of 88%. Stay prepared for a mix of weather conditions!

December Temperature in Williamston

In December in Williamston, the average temperature is 9°C (48°F), with maximums rising to 24°C (76°F) and minimums dropping as low as -7°C (20°F). Travelers can expect a diverse range of weather conditions, so it's advisable to pack layers to stay comfortable throughout the day.

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

The chart illustrates December temperature patterns in Williamston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williamston, December typically has an average temperature of 9°C (48°F), with highs reaching up to 24°C (76°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec455055627177807975665248
Data source: Temperature data for Williamston 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 Williamston

In Williamston in December, the precipitation amount is 124 mm (4.9 in) spread over a duration of 10 days.

December Precipitation Trends in Williamston

The chart displays monthly precipitation patterns in Williamston, 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 Williamston, December typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1021371081201429910413012111895124
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Williamston

In Williamston in December, humidity is 88%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill settling into your bones, making outdoor exploration feel heavy and oppressive.

December Average Humidity in Williamston

This chart illustrates the average monthly humidity levels in Williamston, 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 Williamston is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Williamston

In Williamston 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 Williamston for better planning.

Maximum UV Index Levels in Williamston for December

The chart shows the monthly maximum UV Index (UVI) for Williamston 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 Williamston typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109864
Data source: Williamston 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 Williamston Compares to Other Months

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

This table compares monthly weather conditions in Williamston, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)102 mm (4.0 inches)86%moderate
February Weather10°C (50°F)137 mm (5.4 inches)86%high
March Weather13°C (55°F)108 mm (4.3 inches)86%very high
April Weather17°C (63°F)120 mm (4.7 inches)82%very high
May Weather22°C (71°F)142 mm (5.6 inches)85%extreme
June Weather25°C (77°F)99 mm (3.9 inches)85%extreme
July Weather27°C (80°F)104 mm (4.1 inches)83%extreme
August Weather26°C (79°F)130 mm (5.1 inches)76%very high
September Weather24°C (75°F)121 mm (4.8 inches)76%very high
October Weather19°C (66°F)118 mm (4.7 inches)80%very high
November Weather11°C (52°F)95 mm (3.8 inches)88%high
December Weather9°C (48°F)124 mm (4.9 inches)88%moderate

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