Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Clayton, United States, where the climate encourages outdoor activities but also comes with UV exposure risks. Monitoring UV levels helps protect against sunburn and long-term skin health issues, ensuring you enjoy the beautiful sunny days safely. With typical peak UV Index values reaching a high of 13 around midday, it's especially important for Clayton's residents to stay informed and take necessary precautions to shield themselves from the sun's harmful rays. Embrace the sunshine wisely, and make the most of Clayton's vibrant outdoor lifestyle!
The UV Index starts off mild at 1 at 07:00, gradually climbing to reach a peak of 13 by 13:00. This is the most intense period of sunlight, with the index hitting 12 at noon and 10 at 11:00. As the afternoon progresses, it begins to decline, dropping to 9 at 15:00, and settling at 4 by 17:00. The day winds down with the UV levels falling back to 2 at 18:00 and returning to 1 by 19:00, indicating a gentler evening. It’s important to stay protected during the peak hours when the sun is at its strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 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 |
Throughout the year, UV Index levels exhibit significant seasonal variations, indicating the need for awareness and protection against sun exposure. High-risk months primarily span from March to August, where the UV Index reaches extreme levels of 11 to 13, resulting in burn times as short as 10 minutes. In these months, it is crucial for both visitors and residents to take extra precautions, such as wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours. Conversely, the UV Index drops to moderate levels (4 to 6) in January, November, and December, allowing for more relaxed sun exposure. However, even in these months, it's advisable to remain vigilant against UV radiation. Understanding these seasonal changes can help everyone enjoy the outdoors safely while minimizing the risk of skin damage.
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 |
| Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
| Clayton | 4 | 6 | 8 | 11 | 11 | 13 | 12 | 11 | 10 | 8 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |