December Weather in Yorktown, United States

Last updated: June 24, 2025

In December, the average temperature in Yorktown, United States hovers around 2°C (36°F). Weather can be quite variable, with temperatures dipping as low as -22°C (-7°F) and peaking at a mild 17°C (63°F). Expect a precipitation total of 71 mm (2.8 in) spread over 10 days, accompanied by an average humidity level of 86%.

December Temperature in Yorktown

In December in Yorktown, the average temperature is 2°C (36°F), with maximums reaching up to 17°C (63°F) and minimums dropping as low as -22°C (-7°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for varying conditions.

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

The chart illustrates December temperature patterns in Yorktown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yorktown, December typically has an average temperature of 2°C (36°F), with highs reaching up to 17°C (63°F) and lows dropping to around -22°C (-7°F).

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

December Precipitation in Yorktown

In Yorktown in December, the precipitation amount is 71 mm (2.8 in) over a duration of 10 days.

December Precipitation Trends in Yorktown

The chart displays monthly precipitation patterns in Yorktown, 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 Yorktown, December typically receives around 71 mm (2.8 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 Yorktown

In Yorktown in December, humidity is 86%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that clings to your skin, making outdoor exploration uncomfortable and dampening any enthusiasm for travel.

December Average Humidity in Yorktown

This chart illustrates the average monthly humidity levels in Yorktown, 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 Yorktown 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 Yorktown

In Yorktown in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Yorktown, you can visit Hourly UV Index in Yorktown.

Maximum UV Index Levels in Yorktown for December

The chart shows the monthly maximum UV Index (UVI) for Yorktown 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 Yorktown typically reaches 2, which falls under the low exposure category.

Data source: Yorktown 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 Yorktown Compares to Other Months

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

This table compares monthly weather conditions in Yorktown, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (30°F)	78 mm (3.1 inches)	85%	moderate
February Weather	0°C (33°F)	91 mm (3.6 inches)	85%	moderate
March Weather	5°C (42°F)	112 mm (4.4 inches)	86%	high
April Weather	11°C (51°F)	96 mm (3.8 inches)	87%	very high
May Weather	18°C (64°F)	133 mm (5.2 inches)	81%	very high
June Weather	23°C (73°F)	111 mm (4.4 inches)	82%	extreme
July Weather	24°C (76°F)	108 mm (4.2 inches)	81%	very high
August Weather	23°C (74°F)	94 mm (3.7 inches)	79%	very high
September Weather	20°C (69°F)	77 mm (3.0 inches)	78%	very high
October Weather	14°C (57°F)	102 mm (4.0 inches)	81%	high
November Weather	5°C (42°F)	85 mm (3.3 inches)	89%	moderate
December Weather	2°C (36°F)	71 mm (2.8 inches)	86%	low