Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Earlston, United States, where sunny days can significantly impact skin health. With UV levels peaking at 10 between noon and 2 PM, awareness of daily UV exposure not only helps prevent painful sunburn but also reduces the long-term risk of skin damage and skin cancer. Earlston's Cfb climate, characterized by mild summers and a fair share of sunny days, poses unique UV exposure risks that make it essential to stay informed. By keeping an eye on the UV Index, you can enjoy the outdoors safely while protecting your skin.
The UV Index reveals a dynamic ascent and descent throughout the day, peaking with intensity during midday. Starting at a gentle 1 at 7:00 AM, it climbs steadily, reaching 10 by 1:00 PM and maintaining this highest level until 2:00 PM. This critical window indicates significant sun exposure, and it’s essential to take precautions. As the afternoon progresses, the index begins to taper off, dropping to 8 at 3:00 PM, then gradually falling to 1 by 7:00 PM. This data highlights the importance of being sun-smart during the peak hours to minimize UV exposure risks.
| 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 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | 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 |
As the seasons change, so do the UV Index levels, which indicate the intensity of ultraviolet radiation. January and December have moderate UV levels (3), requiring about 30 minutes of sun exposure before the risk of burning increases. February sees an uptick to a UV Index of 5, maintaining a similar burn time. From March through October, the UV Index escalates, peaking at 10 from May to August, classifying these months as very high risk with a burn time of just 15 minutes. April also falls into the very high category with a UV Index of 9. As fall approaches, September sees a slight decrease to 8, while October returns to a high level of 7. The high-risk months to be especially cautious are from March to October, where prolonged sun exposure can lead to skin damage. Visitors and residents are advised to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade, particularly during these peak 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 |
| Earlston | 3 | 5 | 7 | 9 | 10 | 10 | 10 | 10 | 8 | 7 | 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 |