Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Sky Valley, United States, where sunlight can be both a blessing and a risk. With UV levels soaring as high as 12 during peak hours, it's essential to grasp the implications of ultraviolet exposure for sunburn prevention and overall skin health. Given Sky Valley’s BWh climate, characterized by warm, dry conditions, the risks of excessive sun exposure increase significantly. Stay informed and proactive about the UV Index to safeguard your skin and enjoy all that the beautiful sunshine has to offer!
The UV Index exhibits a dynamic rise and fall throughout the day, peaking dramatically in the early afternoon. Starting from a modest 1 at 07:00, it escalates to a moderate 3 by 08:00. The real intensity kicks in as it climbs to 5 at 09:00, then surges to 8 at 10:00. By 11:00, it reaches a striking 10, and at 12:00, it boasts an impressive 12, marking the day's zenith. As the afternoon progresses, the index gradually decreases, holding steady at 11 at 13:00 and tapering to 10 at 14:00. The evening sees a gentle decline to 8 at 15:00, followed by a drop to 5 at 16:00. As daylight wanes, the UV Index sinks back to 3 at 17:00 and returns to 1 by 18:00, lingering at this low level until 19:00. This fascinating pattern underscores the importance of sun protection, particularly during the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index fluctuates significantly, impacting how residents and visitors should approach sun safety. From March through August, the UV Index reaches its peak, with high-risk months identified as April, May, June, July, and August, where it remains in the extreme category, necessitating protective measures with a burn time of only 10 minutes. As summer transitions to fall, the UV Index begins to decline, though September and October still present very high exposure risks with burn times of 15 minutes. In contrast, the winter months of January, November, and December have a moderate UV Index, allowing for longer burn times of 30 minutes. Visitors and residents are advised to limit sun exposure, particularly during peak hours in high-risk months, and to use sunscreen, protective clothing, and sunglasses to safeguard against harmful UV rays.
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 |
| Sky Valley | 4 | 6 | 9 | 11 | 12 | 12 | 13 | 11 | 10 | 8 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |