Last updated: June 2, 2025
In Shelby, United States, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding the daily UV levels can help you take proactive steps against sunburn and long-term skin damage, making it an essential tool for everyone who enjoys outdoor activities. Given Shelby's Dfa climate, which features warm summers and plenty of sunny days, UV exposure can become significant, particularly during peak hours when the index reaches as high as 11 around midday. Stay informed and embrace sun safety to protect yourself while enjoying the beautiful Shelby sunshine!
As the day unfolds, the UV Index begins its ascent with a gentle 1 at 7:00 AM, gradually climbing to a moderate 3 by 9:00 AM. The sun's strength becomes undeniable by 10:00 AM, peaking at a robust 11 around 1:00 PM—the highest point of the day. Even as the afternoon progresses, the index slowly recedes, measured at 9 at 3:00 PM and continuing to dip into the evening, reaching 1 by 7:00 PM. Remember to protect your skin during those peak hours—especially between 11 AM and 3 PM—when UV exposure is at its highest!
| 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 | 9 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences significant seasonal fluctuations, indicating varying levels of sun exposure risk throughout the year. High-risk months include April to September, where the UV Index reaches its peak, particularly in June with an extreme level of 11; during this period, burn times decrease dramatically to as little as 10 to 15 minutes. During March, the UV Index escalates to a high 6, suggesting increased caution as well. In contrast, the winter months of January, February, November, and December show more moderate levels, with a UV Index around 3 to 5 and burn times of 30 minutes. To ensure safety, visitors and residents should take precautions during high-risk months by wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sun hours.
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 |
| Shelby | 3 | 5 | 6 | 9 | 9 | 11 | 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 |