UV Index in Boone, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Boone, United States, where the mix of elevation and varying climate can elevate sun exposure risks. Being aware of daily UV levels not only helps in preventing painful sunburns but also plays a vital role in maintaining long-term skin health. With Boone's Cfb climate, where sunny days can catch people off guard, the UV Index can peak notably, reaching a high of 11 around midday. This makes it essential to check the UV Index regularly and take the necessary precautions for safe outdoor activities.

Hourly UV Index in Boone

The UV Index for the day showcases a striking pattern, starting moderate at 7:00 AM with a value of 1. As the sun climbs higher, the index steadily rises, hitting 3 by 9:00 AM, and then surging to a peak of 11 between 1:00 PM and 2:00 PM. This indicates a high risk of harm from unprotected sun exposure during midday. Following the peak, the UV Index gradually declines to 4 by 5:00 PM and further decreases to 1 by 7:00 PM, emphasizing the critical importance of sun protection during the intense midday hours. It’s advisable to seek shade and wear sunscreen if you're outside during the peak period!

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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	9	very high	15 min
16:00	7	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Boone

Throughout the year, UV exposure fluctuates significantly, peaking in the summer months. The highest risk for sunburn occurs from April to August, when the UV Index consistently reaches 11 (extreme). During these months, the recommended burn time is a mere 10 minutes, highlighting the urgent need for protective measures. In March and September, the UV Index remains very high at 8 and 10, respectively, urging caution with a burn time of 15 minutes. Meanwhile, January, February, November, and December experience lower UV levels, categorized as moderate to high, with more extended burn times. Visitors and residents are advised to take appropriate precautions, such as wearing sunscreen, protective clothing, and seeking shade, especially during the peak summer months.

Monthly Maximum UV Index for Boone, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Boone. 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 Boone, 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 Boone UV Index with Other United States Cities

The table above highlights how UV exposure in Boone 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.

Boone'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
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Boone	4	6	8	11	11	11	11	11	10	8	6	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5