December Weather in Lexington, United States

Last updated: June 24, 2025

In December, the average temperature in Lexington, United States hovers around 4°C (39°F). Prepare for a wide range as temperatures can dip as low as -19°C (-2°F) and soar to a pleasant 19°C (67°F). Expect about 97 mm (3.8 in) of precipitation spread over 8 days, coupled with an average humidity of 85%, making this month a unique blend of chill and moisture.

December Temperature in Lexington

In December in Lexington, the average temperature is 4°C (39°F). Maximums can reach 19°C (67°F), while minimums can drop to as low as -19°C (-2°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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 4°C (39°F), with highs reaching up to 19°C (67°F) and lows dropping to around -19°C (-2°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 total precipitation amount is 97 mm (3.8 in), occurring over a span of 8 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 97 mm (3.8 inches) of precipitation spread over approximately 8 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 85%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to ward off the cold and moisture.

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 85%, 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	2°C (35°F)	70 mm (2.7 inches)	84%	moderate
February Weather	4°C (40°F)	109 mm (4.3 inches)	84%	high
March Weather	7°C (46°F)	78 mm (3.1 inches)	84%	very high
April Weather	13°C (55°F)	124 mm (4.9 inches)	82%	very high
May Weather	18°C (64°F)	129 mm (5.1 inches)	82%	very high
June Weather	21°C (71°F)	98 mm (3.9 inches)	83%	extreme
July Weather	24°C (76°F)	58 mm (2.3 inches)	79%	very high
August Weather	23°C (74°F)	103 mm (4.0 inches)	77%	very high
September Weather	20°C (69°F)	99 mm (3.9 inches)	75%	very high
October Weather	15°C (59°F)	113 mm (4.4 inches)	81%	high
November Weather	6°C (44°F)	80 mm (3.2 inches)	87%	moderate
December Weather	4°C (39°F)	97 mm (3.8 inches)	85%	moderate