Last updated: July 2, 2025
Understanding the UV Index in Powell, United States is crucial for protecting your skin and overall health. The UV Index indicates the strength of ultraviolet radiation from the sun, which can lead to sunburn and long-term skin damage if not monitored. In Powell's semi-arid climate, where sunshine is abundant, awareness of UV levels becomes essential, especially during peak hours when the index can reach a maximum of 11. By staying informed about daily UV exposure risks, you can take proactive steps to enjoy the outdoors safely, protecting yourself and your loved ones from harmful effects while basking in the beauty of this vibrant location.
The UV Index climbs steadily throughout the morning, starting at a modest 1 at 7:00 AM and reaching a more intense 3 by 9:00 AM. As the sun rises higher, the index peaks at an alarming 11 at 1:00 PM, indicating severe UV exposure. This high risk is only slightly alleviated in the following hours, where it drops to 10 at 2:00 PM and gradually decreases to 4 by 5:00 PM. As the evening approaches, the UV Index dips to low levels of 2 at 6:00 PM and returns to 1 by 7:00 PM. Remember, during the midday hours, adequate sun protection is crucial to safeguard your skin from harmful UV rays!
| 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 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | 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 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index undergoes significant seasonal fluctuations, peaking during the summer months of June and July when it reaches an extreme level of 11 and requires only 10 minutes of exposure to cause sunburn. April through August are particularly high-risk months, with UV ratings categorized as very high to extreme. Visitors and residents should exercise caution: during high-index months, it is advisable to wear protective clothing, apply sunscreen regularly, and seek shade whenever possible. As the year transitions into the cooler months, UV exposure decreases, with January and February rated as moderate, offering different burn times of 30 minutes. November and December see a drop to low and moderate UV levels, making outdoor activities safer in terms of sun exposure, but precautions should still be taken, especially as the sun can still harm skin at lower indices.
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 |
| Powell | 3 | 5 | 6 | 8 | 10 | 11 | 11 | 10 | 8 | 6 | 3 | 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 |