Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Lyons Falls, United States, especially during the summer months when sun exposure tends to peak. With UV levels that can reach an intense 9 around noon, being aware of these readings can significantly aid in sunburn prevention and promote long-term skin health. Lyons Falls, nestled in a Dfb climate zone, experiences distinct seasonal variations, making it vital for locals to understand how the sun’s rays can affect them throughout the day. By keeping an eye on the UV Index, you can enjoy the outdoors while protecting your skin from harmful effects.
The UV Index throughout the day presents a clear pattern of intensity, peaking at midday. Starting from a mild level of 1 at 07:00, the index rises steadily, reaching 2 by 08:00. The real surge occurs between 09:00 and 13:00, where it escalates from 4 to a striking 9—the highest point of the day. As the afternoon unfolds, the intensity slightly declines to 7 at 15:00, before tapering off to 5 at 16:00. The evening sees a further decrease, settling back to 2 by 18:00 and returning to 1 at 19:00. For those enjoying outdoor activities, it’s essential to take precautions, especially during the peak hours from 11:00 to 14:00 when the UV rays are most potent.
| 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 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 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 |
As the seasons transition, the UV Index shows notable fluctuations, indicating varying levels of sun exposure risk. January and February experience moderate UV levels (3 and 4), with a burn time of 30 minutes. The risk increases sharply in March with a UV Index of 6, classified as high, reducing the safe exposure time to 25 minutes. The most critical months for UV exposure are April through September, where the Index peaks to 10 in June, denoting very high risk, with a burn time as short as 15 minutes. October sees a drop to a high UV Index of 6, while November and December return to moderate and low levels (3 and 2), allowing for longer exposure times of 30 and 45 minutes, respectively. Visitors and residents are advised to take precautions during the high-risk months—especially between April and September—by wearing sunscreen, protective clothing, and seeking shade when outdoors to minimize the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lyons Falls | 3 | 4 | 6 | 8 | 9 | 10 | 9 | 9 | 8 | 6 | 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 |