UV Index in Lexington, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Lexington, United States, where sunny days can lead to increased UV exposure. Monitoring UV levels helps in preventing sunburn and protecting your skin health from harmful rays. Given Lexington's humid continental climate (Dfa), residents face varying UV risks, especially during peak hours when the index can reach a level of 10 from noon to 2 PM. By staying informed about the UV Index, you can make better decisions about sun safety and enjoy the outdoors while safeguarding your skin.

Hourly UV Index in Lexington

At dawn, the UV Index starts at a mild 1 by 07:00, gradually climbing to 2 by 08:00 as the sun rises. The warmth intensifies, reaching 4 at 09:00 and peaking at a significant 10 between noon and 14:00, signaling the need for sun protection. As the afternoon rolls in, the index begins to dip, settling at 8 by 15:00 before tapering off further to 5 at 16:00. By the evening, the UV levels gracefully descend back to 2 at 18:00 and return to a safe 1 by 19:00, marking a day's journey through varying sun exposure. Be mindful of the midday sun, and stay protected during those peak hours!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	2	low	45 min
09:00	4	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Lexington

Throughout the year, UV Index levels exhibit notable seasonal changes, indicating varying degrees of sun exposure risk. High-risk months typically occur from April to August, with the highest UV Index peaking at 11 in June, classified as extreme exposure, where the recommended burn time is a mere 10 minutes. Visitors and residents should take precautionary measures during these months, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade during peak sunlight hours. As we transition into September and October, UV levels decrease, but caution remains essential during this time as well. Conversely, from November to February, the UV Index is lower, with January at 3 and December at 2, where sun exposure poses a much-reduced threat. Ensuring awareness of these seasonal fluctuations can significantly enhance sun safety practices for everyone.

Monthly Maximum UV Index for Lexington, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Lexington. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Lexington, based on 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.

Compare Lexington UV Index with Other United States Cities

The table above highlights how UV exposure in Lexington compares to other major locations across United States. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Lexington's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chicago UVI	3	4	6	8	9	10	10	9	8	6	4	2
Brooklyn UVI	3	5	6	8	10	10	9	9	8	6	4	2
New York City UVI	3	5	6	8	10	10	9	9	8	6	4	2
Lexington	3	5	6	8	10	11	10	9	8	6	4	2
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5