UV Index in Ironwood, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Ironwood, United States, where the combination of a Dfb climate and varying UV levels can significantly impact skin health. As the sun climbs higher during the day, so do the UV levels, reaching a maximum of 8 between 12:00 PM and 2:00 PM—a time when unprotected skin is especially at risk for sunburn. By staying informed about UV levels, you can take proactive measures to prevent skin damage, ensuring your outdoor activities remain enjoyable and safe. With Ironwood's beautiful outdoors beckoning, it’s essential to prioritize your sun safety to enjoy every moment while protecting your skin.

Hourly UV Index in Ironwood

As the sun rises, the UV Index begins its ascent, starting at a mere 1 at 7:00 AM. By 8:00 AM, it climbs to 2, but it’s by 9:00 AM that we see a moderate rise to 3. The intensity peaks between 11:00 AM and 1:00 PM, hitting a high of 8, indicating that sun protection methods should be in full swing. As the afternoon progresses, values slightly decrease, with the UV Index dropping to 6 by 3:00 PM and then gradually retreating to 1 by 7:00 PM. This hourly data serves as a reminder to stay vigilant about sun safety during the mid-day hours when UV exposure 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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	8	very high	15 min
14:00	8	very high	15 min
15:00	6	high	25 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Ironwood

Throughout the year, UV exposure levels fluctuate significantly, peaking during the spring and summer months. The high-risk months, notably from April to August, feature very high UV indices ranging from 8 to 10, with only 15 minutes of safe exposure before risking sunburn. March also begins to elevate with a moderate index of 5. As autumn arrives, a gradual decline occurs, with September’s index at 7, followed by lowering values in October, November, and December. Visitors and residents are advised to take precautionary measures during the high-risk months, such as applying sunscreen, wearing protective clothing, and seeking shade, especially during midday hours to minimize the risk of UV-related health issues. Remember, even on cloudy days, UV rays can penetrate the atmosphere, so staying vigilant is key!

Monthly Maximum UV Index for Ironwood, United States

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

The table above highlights how UV exposure in Ironwood 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.

Ironwood'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
Ironwood	2	4	5	8	8	10	9	8	7	5	3	2
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