UV Index in Coalville, United States

Last updated: June 2, 2025

In Coalville, United States, understanding the UV Index is essential for protecting your skin and overall health. The UV Index measures the strength of ultraviolet radiation from the sun, which can lead to sunburn, skin damage, and increased risks of skin cancer if not monitored closely. With a Dfb climate, Coalville experiences varying UV exposure throughout the year, especially during peak hours, revealing UV Index levels that can soar to a maximum of 12 around midday. By staying informed about these levels, you can take necessary precautions to enjoy the outdoors while safeguarding your skin from harmful rays.

Hourly UV Index in Coalville

The UV Index today showcases a dramatic rise as the sun reaches its peak. Starting at a gentle 1 at 07:00, the index escalates steadily, reaching its first significant benchmark of 3 by 09:00. However, the real intensity kicks in at 10:00, soaring to 6 and peaking at 12 during the hour of 13:00, and maintaining that blistering level until 14:00. After this peak, the UV Index starts to decline, dropping to 10 by 15:00, and gently fading to 5 by 17:00, before settling back to a safer 1 by 19:00. This highlights the importance of protecting your skin during the midday hours when the UV exposure is at its maximum.

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	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	12	extreme	10 min
15:00	10	very high	15 min
16:00	7	high	25 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Coalville

The UV index exhibits significant seasonal variation, with high-risk months identified primarily from March to August, where values reach their peak at 12 during June and July, classified as extreme exposure with a burn time of only 10 minutes. Visitors and residents should exercise caution during these months, minimizing direct sun exposure during peak hours and wearing protective clothing, sunglasses, and sunscreen. As the year progresses, the UV index decreases, with moderate levels observed in January, February, November, and December, allowing for longer burn times of 30 minutes but still necessitating sun protection. Be vigilant, especially in the spring and summer, to ensure safety and prevent sunburn.

Monthly Maximum UV Index for Coalville, United States

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

The table above highlights how UV exposure in Coalville 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.

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