UV Index in Randolph, United States

Last updated: May 3, 2025

Understanding the UV Index in Randolph, United States is crucial for protecting your skin from harmful ultraviolet rays. With the peak UV levels reaching as high as 11 in midday hours, awareness is key to preventing sunburn and ensuring long-term skin health. Randolph's Dfb climate zone brings a unique mix of seasonal changes and potent sun exposure, especially during the summer months. Staying informed about daily UV levels helps residents enjoy the outdoors safely while minimizing the risk of skin damage. So, check the UV Index regularly, and arm yourself with the knowledge to make informed decisions about sun protection.

Hourly UV Index in Randolph

The UV Index dramatically peaks during the midday hours, showcasing a clear pattern of solar intensity. Starting from a mild 1 at 07:00, it steadily rises, reaching a notable 11 by 13:00. This peak signifies a high risk for skin damage, urging sun safety precautions. As the afternoon progresses, the index gradually declines—falling to 9 at 15:00, and decreasing further to 2 by 18:00. With the sun's intensity waning, the cooler evening hours promise a gentle close to the day, offering a more comfortable outdoor experience. Always stay vigilant during peak UV times!

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	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	10	very high	15 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 Randolph

Throughout the year, UV Index levels fluctuate significantly, with high-risk months predominantly falling between March and August. During this period, the UV Index reaches extreme levels of 11 to 12, with dangerous burn times as short as 10 minutes. For optimal sun safety, it is crucial for visitors and residents to take precautions, especially from April to August, when the sun's intensity is at its peak. In contrast, levels begin to decline in autumn, with September and October displaying a moderate risk before transitioning to lower levels in the winter months. To minimize skin damage, we recommend employing protective measures such as wearing sunscreen, sunglasses, and protective clothing, particularly during the high-risk months. Staying aware of the UV Index can help ensure a safe and enjoyable experience outdoors.

Monthly Maximum UV Index for Randolph, United States

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

The table above highlights how UV exposure in Randolph 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.

Randolph'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
Randolph	4	6	8	11	11	12	12	11	9	7	5	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5