UV Index in Rochelle, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for anyone living in or visiting Rochelle, United States, where the Cfa climate means residents enjoy warm summers with varying UV exposure levels. With peak indices reaching as high as 11 during midday hours, it's essential to grasp the implications of these levels for your skin health and sunburn prevention. High UV exposure can lead to serious skin damage and increase the risk of skin cancer, so being aware of local UV levels can empower you to take proactive measures. Stay informed and enjoy the sun safely in Rochelle!

Hourly UV Index in Rochelle

At sunrise, the UV Index starts low at 1 at 07:00, gradually rising to 3 by 09:00. As the day progresses, the sun’s strength peaks with a remarkable 11 at both 13:00 and 14:00. This intense level suggests that protective measures are essential during these hours. By 15:00, the index begins to decline, settling at 9, and continues to decrease, dropping to 2 by 18:00 and returning to a safe 1 by dusk at 19:00. It's a day urging sun-worshippers to stay protected during those midday hours of utmost UV intensity.

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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	9	very high	15 min
16:00	7	high	25 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Rochelle

The UV Index exhibits significant seasonal variation, peaking during the summer months. From January (UV Index 4) to February (UV Index 7), exposure remains moderate to high, with burn times shortening as spring approaches. The months of March and April see a sharp increase in UV levels (9 and 10 respectively), indicating very high risk for sunburn, with a burn time of just 15 minutes. The extreme category dominates from May to August (UV Index 11), where even brief sun exposure can result in burns within 10 minutes. As we move into September and October, the index drops to 10 and 8, maintaining a very high risk, before returning to a moderate level in November and December (UV Index 6 and 4). Visitors and residents are strongly advised to take precautions, especially from March through October, by wearing protective clothing, using sunscreen, and seeking shade during peak sun hours to minimize the risk of skin damage.

Monthly Maximum UV Index for Rochelle, United States

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

The table above highlights how UV exposure in Rochelle 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.

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