UV Index in Lemont Furnace, United States

Last updated: June 2, 2025

Awareness of the UV Index is crucial for residents of Lemont Furnace, United States, where sunny days can often lead to increased risk of harmful UV exposure. Understanding UV levels not only helps in preventing sunburns but also promotes overall skin health, reducing the long-term risk of skin damage. Nestled in the Cfa climate zone, Lemont Furnace experiences a range of UV exposures throughout the day, peaking at 10 around midday, which calls for protective measures. Stay informed to enjoy the sun safely!

Hourly UV Index in Lemont Furnace

Throughout the day, the UV Index exhibits a remarkable ascent, peaking at an impressive 10 from 1 PM to 2 PM. Starting from a low of 1 at 7 AM, the index gradually escalates, reaching 9 by noon. The sun's intensity continues to grow, prompting caution as it hits 8 at 11 AM and maintains a 10 between 1 PM and 2 PM, marking the day's most hazardous exposure levels. As the afternoon progresses, the index starts to decline, falling to 6 at 4 PM, before tapering off to 2 by 6 PM and finally resting at 1 at 7 PM. This dynamic swing emphasizes the importance of sun protection during peak hours, especially between 11 AM and 2 PM.

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	9	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	9	very high	15 min
16:00	6	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 Lemont Furnace

Throughout the year, UV index levels experience notable fluctuations, with high-risk months primarily occurring from March to September. During this period, particularly in April, May, June, July, and August, the UV index reaches very high levels (9 to 10), indicating a significantly increased risk of harm from unprotected sun exposure, with a burn time as short as 15 minutes. It is crucial for both visitors and residents to take proactive measures, such as wearing sunscreen, protective clothing, and seeking shade during peak hours, especially from late spring to late summer. In contrast, the UV index drops to moderate levels in the winter months (January, February, November, and December), allowing for longer burn times of 30 minutes and a lower overall risk. Regular UV index monitoring is advisable to stay aware of risks throughout the changing seasons.

Monthly Maximum UV Index for Lemont Furnace, United States

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

The table above highlights how UV exposure in Lemont Furnace 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.

Lemont Furnace'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
Lemont Furnace	3	5	7	9	10	10	10	10	8	6	4	3
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