Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Hewitt, United States, where varying sun exposure can significantly impact skin health throughout the year. With a typical Dfb climate, the region experiences periods of elevated UV levels, especially during midday hours, when the index can peak at a harmful 9. Being aware of these levels is essential for preventing sunburn and reducing the long-term risks of skin damage. By tracking the daily UV Index, you can take necessary precautions to protect yourself and your loved ones from the sun’s harmful rays, ensuring safe and enjoyable outdoor activities.
As the day unfolds, the UV Index soars to its peak during the midday hours, reaching a maximum of 9 at 1:00 PM. Early risers will notice a milder UV level; at 7:00 AM, it's a mere 1, gradually climbing to 2 by 8:00 AM. As the sun climbs higher, the intensity intensifies — 3 by 9:00 AM, surging past 5 at 10:00 AM, and hitting 7 at 11:00 AM. The sun's power reaches its zenith at 12:00 PM, where it hits 8, before peaking at 1:00 PM. Following this peak, the UV Index starts to decline, with a gentle drop to 8 at 2:00 PM, further decreasing to 6 at 3:00 PM. By late afternoon, the readings dip to 3 at 5:00 PM, then fall to 2 by 6:00 PM, and finally retreat to 1 as daylight wanes at 7:00 PM. It's a compelling reminder to stay protected during the sun's most intense hours!
| 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 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | 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, the UV Index experiences noticeable fluctuations, impacting the risk of skin damage due to sun exposure. High-risk months are primarily from April to August, where the UV Index reaches very high levels of 8 to 10, necessitating caution with a significantly reduced burn time of just 15 minutes. In contrast, the UV levels are much lower from January to March and again from November to December, characterized by low to moderate exposure with burn times extending up to 45 minutes. Residents and visitors should be particularly mindful during the peak summer months, ensuring adequate sun protection such as sunscreen, hats, and clothing, and seeking shade during the day to minimize the risk of skin damage. Remember, smarter sun habits can help you enjoy the outdoors safely!
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hewitt | 2 | 4 | 5 | 8 | 9 | 10 | 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 |