Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Glenrock, United States, where the semi-arid climate (BSk) can lead to intense sun exposure. Being aware of daily UV levels not only helps in preventing sunburn but also plays a significant role in maintaining long-term skin health. With UV indices soaring as high as 11 around midday, it's essential to recognize the risks and take appropriate precautions to enjoy the sunny days safely. Stay informed and protect your skin from the potential harms of ultraviolet radiation!
The UV Index today showcases a striking pattern of intensity as the sun rises. Starting off at a mild 1 at 7:00 AM, the index climbs steadily, reaching 2 by 8:00 AM. A significant jump occurs at 9:00 AM, where it escalates to 4, setting the stage for a blazing midday. The peak sun exposure arrives at 12:00 PM with a scorching 11, persisting through 1:00 PM to 3:00 PM, indicating extreme UV levels. As the afternoon wanes, a gradual decline brings the index down to 9 by 3:00 PM, then gently descending to 4 by 5:00 PM. By evening, the sun's intensity fades to 2 at 6:00 PM and finally settles back to 1 at 7:00 PM. It's clear: today calls for sun safety measures during peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | 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 exposure varies significantly, with the highest risk months occurring from April through August. During this period, UV Index levels peak at 11, classified as extreme, which means that unprotected skin can burn in as little as 10 minutes. Specifically, April and June consistently show high UV levels, urging visitors and residents to adopt strong sun protection measures, such as wearing sunscreen, protective clothing, and seeking shade during peak hours. Conversely, the UV Index drops to a moderate level in January, November, and December, with burn times extending to 30 minutes. As such, while the risk remains lower in the winter months, it’s essential to remain cautious even during these times. Overall, individuals should be particularly vigilant during the high-risk months of February through September to safeguard against harmful UV exposure.
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 |
| Glenrock | 3 | 6 | 7 | 11 | 10 | 11 | 11 | 10 | 9 | 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 |