Last updated: July 2, 2025
In North Rock Springs, United States, staying informed about the UV Index is essential for safeguarding your skin against harmful sun exposure. The UV Index provides critical information on UV radiation levels throughout the day, helping residents and visitors alike to take precautionary measures against sunburn and long-term skin damage. With a semi-arid climate typical of the BSk zone, this area experiences intense midday sun, leading to UV levels soaring up to 12 during the peak hours around noon. Understanding these fluctuations not only promotes skin health but also encourages safe outdoor activities, ensuring you can enjoy all that North Rock Springs has to offer while protecting yourself from the sun's rays.
As the sun rises, the UV Index begins its ascent, starting at a modest 1 by 7:00 AM. By 9:00 AM, it jumps to 4, signaling that the sun is getting stronger. 10:00 AM witnesses a significant surge to 6, and just after 11:00 AM, the Index soars to its peak at 12. The intensity remains high, hitting 11 again by 2:00 PM, before gradually declining through the afternoon. At 4:00 PM, it drops to 7, and by 6:00 PM, it recedes further to 3, echoing the day's retreat. By the time night falls at 7:00 PM, the UV Index returns to a safe level of 1. Remember to stay protected during those peak hours between 11:00 AM and 2:00 PM!
| 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 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | 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 exhibits marked seasonal changes, peaking during the summer months. High-risk months are April through August, where values reach their maximum at UV Index 12, indicating an extreme exposure category with a burn time of just 10 minutes. Visitors and residents are strongly advised to take precautions during these months, including wearing sunscreen, protective clothing, and seeking shade, especially during midday hours. Conversely, from November to March, the UV Index generally remains moderate to high, with the lowest values occurring in December. It's essential to stay vigilant year-round, as UV radiation can still pose risks even during the cooler months.
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 |
| North Rock Springs | 4 | 6 | 7 | 10 | 11 | 12 | 12 | 11 | 9 | 7 | 5 | 3 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |