Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Rib Mountain, United States, where the unique Dfb climate can lead to varying UV exposure levels throughout the day. As the sun rises, the UV Index can peak at a high of 10 between noon and early afternoon, highlighting the importance of sun safety practices to prevent sunburn and maintain skin health. Awareness of these UV levels enables you to take proactive measures—like applying sunscreen or seeking shade—to protect yourself and your loved ones from harmful UV radiation. Stay informed and enjoy the beautiful outdoors of Rib Mountain while keeping your skin safe!
The UV Index throughout the day showcases a dynamic pattern of sun exposure, peaking during the afternoon. At 07:00, the index starts low at 1, gradually increasing as the sun rises. By 10:00, it reaches 6, signaling a rise in sun intensity, culminating in a striking 10 from 12:00 to 13:00, indicating a high risk of harm from unprotected sun exposure. As the day progresses, the UV Index declines, dropping to 3 by 17:00, and steadily returning to 1 by 19:00. This data highlights the importance of sun protection, especially during midday when the UV Index is at its highest.
| 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 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | 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 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels fluctuate significantly, indicating varying risks of skin damage from sun exposure. The low-risk months are January and December, with UV Index levels of 2, allowing for about 45 minutes of safe sun exposure. As we move into early spring, February and March show a moderate index of 4 and 5, respectively, reducing burn time to 30 minutes. The high-risk months notably occur from April to August, peaking in June with a UV Index of 10, and requiring sunscreen application and minimal exposure after just 15 minutes. September dips to a high level of 7, while October and November present a moderate risk. Visitors and residents should take precautions, particularly during peak summer months by seeking shade, wearing protective clothing, and using sunscreen to minimize skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rib Mountain | 2 | 4 | 5 | 7 | 8 | 10 | 9 | 9 | 7 | 5 | 3 | 2 |
| 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 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |