Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Dexter, United States, where the temperate climate can lead to fluctuating sun exposure throughout the year. By staying informed about daily UV levels, you can take proactive measures against sunburn and long-term skin damage, ensuring your health and well-being under the sun. In Dexter, UV exposure can peak with levels reaching 9 during midday, emphasizing the importance of protective measures, especially in the summer months. Whether it's applying sunscreen, wearing protective clothing, or seeking shade, being UV-aware in our community not only promotes skin health but also enhances outdoor enjoyment safely.
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 |
Throughout the year, UV Index levels show significant seasonal variation, with peak values during the summer months. From January to February, the UV Index gradually increases from a low level of 2, with a burn time of 45 minutes, to a moderate level of 4 in February, reducing the burn time to 30 minutes. As spring approaches, March reaches a high level of 6, offering a burn time of 25 minutes. The summer months of April through August experience very high UV Index levels, peaking at 9 and necessitating caution with only a 15-minute burn time. September sees a decrease to a high UV level of 7, with a burn time of 25 minutes, while October and November return to moderate levels of 5 and 3, respectively, allowing for longer exposure times. By December, the UV Index falls back to a low level of 2, increasing the burn time to 45 minutes. Visitors and residents are advised to be particularly vigilant during the summer months (April to August), applying broad-spectrum sunscreen regularly and seeking shade during peak sunlight hours to protect against harmful UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dexter | 2 | 4 | 6 | 8 | 9 | 9 | 9 | 9 | 7 | 5 | 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 |