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December Weather in King William, United States

Last updated: June 24, 2025

In King William, United States, the average temperature in December hovers around 7°C (44°F). During this time, temperatures can range from a chilling -8°C (17°F) to a pleasant 22°C (71°F). Expect about 90 mm (3.5 in) of precipitation spread over 10 days, with an average humidity of 84% that adds to the cool atmosphere.

December Temperature in King William

In December in King William, the average temperature is 7°C (44°F). The maximum can reach 22°C (71°F), and the minimum can be as low as -8°C (17°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

December Weather in King William: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in King William, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In King William, December typically has an average temperature of 7°C (44°F), with highs reaching up to 22°C (71°F) and lows dropping to around -8°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec404449596875807873645044
Data source: Temperature data for King William 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 King William

In King William in December, the precipitation amount is 90 mm (3.5 in) over the course of 10 days.

December Precipitation Trends in King William

The chart displays monthly precipitation patterns in King William, 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 King William, December typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6996841091001201131741011237790
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in King William

In King William in December humidity is 84%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making it uncomfortable for traveling and requiring extra layers to stay warm and dry.

December Average Humidity in King William

This chart illustrates the average monthly humidity levels in King William, 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 King William is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%82%81%80%82%81%81%78%80%84%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in King William

In King William 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 King William, you can check the information here.

Maximum UV Index Levels in King William for December

The chart shows the monthly maximum UV Index (UVI) for King William 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 King William typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101010108753
Data source: King William 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 King William Compares to Other Months

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

This table compares monthly weather conditions in King William, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)69 mm (2.7 inches)84%moderate
February Weather7°C (45°F)96 mm (3.8 inches)83%high
March Weather10°C (50°F)84 mm (3.3 inches)82%high
April Weather15°C (59°F)109 mm (4.3 inches)81%very high
May Weather20°C (68°F)100 mm (3.9 inches)80%very high
June Weather24°C (76°F)120 mm (4.7 inches)82%very high
July Weather27°C (81°F)113 mm (4.4 inches)81%very high
August Weather26°C (78°F)174 mm (6.8 inches)81%very high
September Weather23°C (73°F)100 mm (4.0 inches)78%very high
October Weather18°C (64°F)123 mm (4.8 inches)80%high
November Weather10°C (50°F)77 mm (3.0 inches)84%moderate
December Weather7°C (44°F)90 mm (3.5 inches)84%moderate

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