Last updated: June 2, 2025
Understanding the UV Index is vital for residents of Beaver Dam, United States, where sunny days invite outdoor activities but can also increase the risk of sunburn and long-term skin damage. The UV levels here can peak dramatically, reaching as high as 11 during midday hours, making awareness crucial for protecting your skin health. With Beaver Dam's humid subtropical climate, residents must remain vigilant about UV exposure to enjoy the outdoors safely. Keeping track of the UV Index not only aids in planning daily activities but also promotes healthier sun habits and preventative care.
The UV Index throughout the day follows a dynamic trajectory, peaking during midday hours. Early in the morning, at 7:00 AM, the index is a mere 1, indicating minimal risk. However, as the sun rises, the intensity escalates sharply, reaching 11 by 12:00 PM and 1:00 PM, signaling a high risk period for unprotected skin. By 3:00 PM, there's a noticeable decline to 8, and it continues to fall gently, arriving back at 1 by 7:00 PM. It’s crucial to stay protected during those peak hours, especially between 10:00 AM and 3:00 PM, when the sun's rays are the strongest.
| 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 | 10 | 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 display significant seasonal variation, with notable peaks during the spring and summer months. From January (UV Index 3) to March (UV Index 7), exposure remains moderate to high, but by April and May (UV Index 10), it escalates to a very high category, necessitating increased sun protection. The most critical periods, with an extreme UV index of 11, occur in June, reminding visitors and residents to exercise extreme caution and limit sun exposure to just 10 minutes. This trend continues into July and August with very high levels, tapering off slightly in September (UV Index 9), before returning to high levels in October (UV Index 7). Residents and visitors should prioritize sun safety during the high-risk months of April to September, using sunscreen, wearing protective clothing, and seeking shade to minimize UV exposure. In contrast, November and December see a welcome decrease with a moderate UV index, allowing for more comfortable outdoor activities.
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 |
| Beaver Dam | 3 | 6 | 7 | 10 | 10 | 11 | 10 | 10 | 9 | 7 | 5 | 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 |