December Weather in Lexington, United States

Last updated: June 24, 2025

In December, the average temperature in Lexington, United States hovers around -1°C (31°F). While temperatures can dip as low as -25°C (-12°F), they can also soar to a maximum of 22°C (72°F). Expect about 35 mm (1.4 in) of precipitation spread over 4 days, contributing to an average humidity of 79%.

December Temperature in Lexington

In December in Lexington, the average temperature is -1°C (31°F). Maximum temperatures can reach 22°C (72°F), while the minimum can drop as low as -25°C (-12°F). Be prepared for a wide range of temperatures and pack accordingly for your trip.

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

The chart illustrates December temperature patterns in Lexington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lexington, December typically has an average temperature of -1°C (31°F), with highs reaching up to 22°C (72°F) and lows dropping to around -25°C (-12°F).

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

December Precipitation in Lexington

In Lexington in December, the precipitation amount is 35 mm (1.4 in) over a span of 4 days.

December Precipitation Trends in Lexington

The chart displays monthly precipitation patterns in Lexington, 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 Lexington, December typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 4 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 Lexington

In Lexington in December humidity is 79%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, damp blanket wrapping around you, making outdoor adventures challenging as the cold moisture seeps into your clothes, leaving you feeling chilled to the bone.

December Average Humidity in Lexington

This chart illustrates the average monthly humidity levels in Lexington, 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 Lexington is approximately 79%, 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 Lexington

In Lexington 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 Lexington, you can check the information here.

Maximum UV Index Levels in Lexington for December

The chart shows the monthly maximum UV Index (UVI) for Lexington 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 Lexington typically reaches 3, which falls under the moderate exposure category.

Data source: Lexington 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 Lexington Compares to Other Months

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

This table compares monthly weather conditions in Lexington, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	20 mm (0.8 inches)	73%	moderate
February Weather	-3°C (26°F)	22 mm (0.9 inches)	81%	moderate
March Weather	4°C (40°F)	74 mm (2.9 inches)	69%	high
April Weather	9°C (49°F)	44 mm (1.7 inches)	71%	very high
May Weather	15°C (60°F)	147 mm (5.8 inches)	80%	very high
June Weather	23°C (74°F)	64 mm (2.5 inches)	83%	extreme
July Weather	25°C (77°F)	72 mm (2.8 inches)	84%	extreme
August Weather	23°C (74°F)	71 mm (2.8 inches)	84%	very high
September Weather	20°C (68°F)	52 mm (2.1 inches)	77%	very high
October Weather	10°C (51°F)	67 mm (2.6 inches)	72%	high
November Weather	4°C (40°F)	17 mm (0.7 inches)	80%	moderate
December Weather	-1°C (31°F)	35 mm (1.4 inches)	79%	moderate