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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 3°C (38°F). Expect a chilly atmosphere with minimums dipping to -19°C (-1°F) and maximums rising to a comfortable 23°C (74°F). During this month, precipitation averages 33 mm (1.3 in) across about 4 days, contributing to a notably high average humidity of 86%.

December Temperature in Lexington

In December in Lexington, the average temperature is 3°C (38°F). Maximum temperatures can reach 23°C (74°F), while minimum temperatures can drop as low as -19°C (-1°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 3°C (38°F), with highs reaching up to 23°C (74°F) and lows dropping to around -19°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec303246546677797672574437
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 precipitation amount is 33 mm (1.3 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 33 mm (1.3 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec56441028621510810197741134733
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 86%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps through your layers, making traveling uncomfortable as breath clouds visibly in the crisp air.

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 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
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 Weather-1°C (31°F)56 mm (2.2 inches)80%moderate
February Weather0°C (33°F)44 mm (1.7 inches)78%moderate
March Weather8°C (46°F)102 mm (4.0 inches)75%high
April Weather12°C (54°F)86 mm (3.4 inches)77%very high
May Weather19°C (66°F)215 mm (8.4 inches)82%very high
June Weather25°C (77°F)108 mm (4.2 inches)83%extreme
July Weather26°C (79°F)101 mm (4.0 inches)81%extreme
August Weather25°C (77°F)97 mm (3.8 inches)78%very high
September Weather22°C (72°F)74 mm (2.9 inches)72%very high
October Weather14°C (57°F)113 mm (4.5 inches)72%high
November Weather7°C (44°F)47 mm (1.9 inches)84%moderate
December Weather3°C (38°F)33 mm (1.3 inches)86%moderate

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