UV Index in Gray, United States

Last updated: May 3, 2025

Understanding the UV Index is essential for residents of Gray, United States, where even moderate sunlight can pose risks. With peaks reaching a maximal level of 12 during midday, knowing the UV levels helps you make informed decisions about sun exposure, significantly aiding in sunburn prevention and the maintenance of long-term skin health. Despite Gray’s temperate climate, the risks of UV exposure are real and can be heightened during the summer months. Staying vigilant about UV Index fluctuations ensures you and your loved ones enjoy the outdoors safely and responsibly.

Hourly UV Index in Gray

The UV Index for the day exhibits a striking climb as the sun rises, starting at a mild 1 by 07:00 and steadily increasing to reach its peak at 12 by 13:00. During the sun's zenith, particularly between 11:00 and 13:00, the UV Index soars to a high of 11, signaling a strong need for protection against harmful rays. As afternoon transitions to evening, the index gracefully declines; it drops to 8 by 15:00, then further diminishes to 1 by 19:00. For a safe outdoor experience, it’s crucial to stay vigilant and protect your skin especially during the peak hours when the UV Index is at its highest.

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	9	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Gray

Throughout the year, UV Index levels exhibit significant seasonal changes, with the highest values occurring from April to August. During this peak period, the UV Index reaches extreme levels of 11 to 12, resulting in a burn time of just 10 minutes. February and March also present high risk with values reaching 8 and 9, respectively. Visitors and residents should be particularly cautious from April to August, ensuring they protect their skin with sunscreen, clothing, and shade, especially during midday hours. For the rest of the year, while the risk decreases to moderate or high, it remains important to remain vigilant, particularly in September and October when the UV Index is still notably high. Prioritizing sun safety year-round is essential for minimizing harmful UV exposure.

Monthly Maximum UV Index for Gray, United States

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

The table above highlights how UV exposure in Gray 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.

Gray'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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5
Gray	5	8	9	11	11	12	12	12	10	9	7	5