Last updated: July 2, 2025
Understanding the UV Index is crucial for residents in Radcliffe, United States, where the climate often sees higher exposure to ultraviolet radiation. Awareness of UV levels can help prevent sunburn and promote overall skin health, especially during peak hours when values reach as high as 10. With Radcliffe's climate classified as Dfa, it experiences warm to hot summers that increase the risk of harmful UV exposure. By staying informed about the UV Index, you can enjoy the sun safely while protecting your skin from potential damage.
The UV Index reveals a dynamic ascent and descent throughout the day, peaking with intensity during midday. Starting at a gentle 1 at 7:00 AM, it climbs steadily, reaching 10 by 1:00 PM and maintaining this highest level until 2:00 PM. This critical window indicates significant sun exposure, and it’s essential to take precautions. As the afternoon progresses, the index begins to taper off, dropping to 8 at 3:00 PM, then gradually falling to 1 by 7:00 PM. This data highlights the importance of being sun-smart during the peak hours to minimize UV exposure risks.
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 | 8 | 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 |
Throughout the year, the UV Index undergoes notable seasonal changes, with the highest levels typically occurring in the summer months. April signals the onset of increased UV radiation, peaking in June with an extreme UV Index of 11 and a burn time of just 10 minutes. The high-risk months for sun exposure are April to September, when values range from 8 to 11, indicating very high to extreme levels. Residents and visitors should be especially cautious during this period, taking proactive measures such as wearing sunscreen, sunglasses, and protective clothing, and seeking shade during peak sunlight hours. In contrast, the winter months of December and January present a moderate UV risk, but vigilance remains essential, as skin can still be affected by UV rays even when temperatures are cooler.
UV Risk Categories
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 |
Radcliffe | 3 | 5 | 5 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 3 | 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 |