Last updated: May 3, 2025
Understanding the UV Index in Centerville, United States is crucial for safeguarding your skin against harmful ultraviolet rays. With peak UV levels reaching 9 during midday, awareness of these exposure levels is essential for preventing sunburn and long-term skin health issues. This region, characterized by a Dfa climate, sees significant sun exposure, especially in the warmer months. By monitoring the UV Index, residents and visitors can better prepare for outdoor activities, ensuring they take necessary precautions to enjoy the sun safely.
At dawn, the UV Index starts low, peaking at a mild 1 by 07:00. As the sun rises higher, the intensity of UV rays escalates swiftly, reaching 2 by 08:00, and climbing to 3 by 09:00. The sun’s power truly shines through at 10:00, where it hits a solid 5, encouraging sun seekers to apply protection. The midday sun is fierce, with the UV Index soaring to a peak of 9 from 12:00 to 14:00, prompting vigilance against potential sunburn. As the afternoon progresses, the Index begins to decline, dropping to 8 by 15:00, then gradually easing to 5 by 16:00. Finally, as evening approaches and the sun sets, the UV Index returns to a gentle 2 by 18:00, before settling back to 1 by 19:00, signaling the end of a day filled with the sun’s invigorating energy.
| 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 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | 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 |
The UV Index varies significantly throughout the year, with notable increases during the warmer months. High-risk months include April through September, when the UV Index reaches its peak, particularly in June at an extreme level of 11. During these months, the burn time shortens dramatically, with a maximum exposure of just 10 minutes in June to avoid skin damage. Conversely, the winter months of January, February, November, and December exhibit a moderate risk, allowing for longer exposure times of 30 minutes. Visitors and residents are advised to take precautions during the high-risk period, including wearing sunscreen, protective clothing, and limiting sun exposure, especially between the hours of 10 AM and 4 PM when UV radiation is the strongest.
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 |
| Centerville | 3 | 5 | 6 | 9 | 9 | 11 | 10 | 9 | 8 | 6 | 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 |