January Weather in Lexington, United States

Last updated: June 24, 2025

In January, the average temperature in Lexington, United States hovers around 5°C (41°F). While the mercury can dip to a frigid -19°C (-3°F), it can also climb to a pleasant 23°C (73°F). Expect 103 mm (4.1 in) of precipitation over 9 days, accompanied by a high average humidity of 86%.

January Temperature in Lexington

In January in Lexington, the average temperature is 5°C (41°F). The maximum can reach 23°C (73°F), while the minimum can drop to as low as -19°C (-3°F). This wide temperature range means travelers should prepare for both mild and chilly conditions.

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

The chart illustrates January 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, January typically has an average temperature of 5°C (41°F), with highs reaching up to 23°C (73°F) and lows dropping to around -19°C (-3°F).

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

January Precipitation in Lexington

In Lexington in January, the precipitation amount is 103 mm (4.1 in) distributed over 9 days.

January Precipitation Trends in Lexington

The chart displays monthly precipitation patterns in Lexington, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Lexington, January typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Lexington

In Lexington in January humidity is 86%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket wrapping around you, making outdoor activities uncomfortable and travel quite challenging due to the chill combined with the stickiness in the air.

January Average Humidity in Lexington

This chart illustrates the average monthly humidity levels in Lexington, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Lexington is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Lexington

In Lexington in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Lexington for better planning.

Maximum UV Index Levels in Lexington for January

The chart shows the monthly maximum UV Index (UVI) for Lexington in January, 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 January, the maximum UV index in Lexington typically reaches 4, which falls under the moderate exposure category.

Data source: Lexington January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	103 mm (4.1 inches)	86%	moderate
February Weather	7°C (45°F)	180 mm (7.1 inches)	85%	high
March Weather	12°C (54°F)	171 mm (6.7 inches)	84%	high
April Weather	15°C (60°F)	167 mm (6.6 inches)	81%	very high
May Weather	21°C (71°F)	119 mm (4.7 inches)	83%	extreme
June Weather	25°C (78°F)	111 mm (4.4 inches)	83%	extreme
July Weather	27°C (81°F)	130 mm (5.1 inches)	80%	extreme
August Weather	26°C (79°F)	109 mm (4.3 inches)	73%	very high
September Weather	24°C (75°F)	115 mm (4.5 inches)	70%	very high
October Weather	17°C (64°F)	126 mm (5.0 inches)	73%	high
November Weather	9°C (49°F)	87 mm (3.4 inches)	85%	moderate
December Weather	8°C (46°F)	143 mm (5.6 inches)	88%	moderate