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December Weather in Lexington, United States

Last updated: June 24, 2025

In Lexington, United States, the average temperature in December hovers around 8°C (46°F). Expect a chill as lows can plummet to -10°C (14°F), while highs might reach a comfortable 24°C (75°F). With an average humidity of 88%, the atmosphere can feel quite damp. Be prepared for 11 days of rainfall during the month, totaling 143 mm (5.6 in) of precipitation.

December Temperature in Lexington

In December, in Lexington, the average temperature is 8°C (46°F). The maximum can reach 24°C (75°F), while the minimum can drop to as low as -10°C (14°F). Be prepared for varying temperatures if you're planning to travel during this time!

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 8°C (46°F), with highs reaching up to 24°C (75°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec414554597077817975634946
Data source: Temperature data for Lexington 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 Lexington

In Lexington in December, the total precipitation amount reaches 143 mm (5.6 in) over the course of 11 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 143 mm (5.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec10318017116711911113010911512687143
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lexington

In Lexington in December, humidity is 88%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration feel much more uncomfortable than the temperature alone would suggest.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%81%83%83%80%74%70%73%85%88%
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.
JanFebMarAprMayJunJulAugSepOctNovDec46710111111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)103 mm (4.1 inches)86%moderate
February Weather7°C (45°F)180 mm (7.1 inches)85%high
March Weather12°C (54°F)171 mm (6.7 inches)84%high
April Weather15°C (60°F)167 mm (6.6 inches)81%very high
May Weather21°C (71°F)119 mm (4.7 inches)83%extreme
June Weather25°C (78°F)111 mm (4.4 inches)83%extreme
July Weather27°C (81°F)130 mm (5.1 inches)80%extreme
August Weather26°C (79°F)109 mm (4.3 inches)73%very high
September Weather24°C (75°F)115 mm (4.5 inches)70%very high
October Weather17°C (64°F)126 mm (5.0 inches)73%high
November Weather9°C (49°F)87 mm (3.4 inches)85%moderate
December Weather8°C (46°F)143 mm (5.6 inches)88%moderate

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