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December Weather in Lexington, United States

Last updated: June 24, 2025

In December, the average temperature in Lexington, United States hovers around 13°C (56°F). This month can bring a minimum temperature as low as -3°C (27°F), while the maximum may reach a comfortable 29°C (85°F). Expect about 90 mm (3.5 in) of precipitation over approximately 8 days, accompanied by a high average humidity of 87%.

December Temperature in Lexington

In December in Lexington, the average temperature is 13°C (56°F). Maximum temperatures can reach 29°C (85°F), while minimums can drop as low as -3°C (27°F). It's advisable to dress in layers to prepare for the varying temperatures during your travels.

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 13°C (56°F), with highs reaching up to 29°C (85°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec525464687782858781716055
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 90 mm (3.5 in) spread over 8 days, indicating a relatively wet period for the region.

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 90 mm (3.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec646972118155100821181251006890
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 87%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it challenging to explore comfortably.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%87%
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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Lexington.

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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121110865
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 Weather11°C (52°F)64 mm (2.5 inches)79%moderate
February Weather12°C (54°F)69 mm (2.7 inches)80%very high
March Weather18°C (64°F)72 mm (2.8 inches)78%very high
April Weather20°C (69°F)118 mm (4.7 inches)79%extreme
May Weather25°C (77°F)155 mm (6.1 inches)81%extreme
June Weather28°C (83°F)100 mm (3.9 inches)77%extreme
July Weather30°C (85°F)82 mm (3.2 inches)71%extreme
August Weather30°C (87°F)118 mm (4.6 inches)67%extreme
September Weather27°C (81°F)124 mm (4.9 inches)69%very high
October Weather22°C (71°F)100 mm (3.9 inches)73%very high
November Weather16°C (60°F)68 mm (2.7 inches)82%high
December Weather13°C (56°F)90 mm (3.5 inches)87%moderate

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