Last updated: July 2, 2025
In Glencoe, United States, staying aware of the UV Index is essential for safeguarding your skin and overall health. Understanding UV levels helps prevent sunburn and long-term skin damage, allowing you to enjoy the beautiful outdoors with peace of mind. With a Dfa climate characterized by warm summers, Glencoe experiences varying UV exposure throughout the day, peaking at 9 from 12:00 PM to 2:00 PM. By keeping an eye on the UV Index, you can take proactive measures to protect yourself and your loved ones from harmful rays.
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 at 07:00. By 08:00, it climbs to 2, indicating a mild increase in UV exposure. The real peak arrives at 12:00, where the index reaches a striking 9, underscoring the importance of sun protection during these hours. This high level remains steady until 14:00, followed by a gradual descent as the afternoon wanes: 8 at 15:00, 6 at 16:00, and continuing down to 2 at 18:00. As evening approaches, the UV Index drops to a soft 1 by 19:00, signaling a gentle close to the sun-soaked day. Remember to take precautions during the midday hours to safeguard your skin!
| 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 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the UV levels. January starts off with a moderate UV Index of 3, allowing for a burn time of 30 minutes before protection is needed. As we move into February and March, the UV Index remains at 5, still in the moderate category. However, starting in April, UV exposure escalates with an Index of 7, indicating a high risk of harm, with a reduced burn time of 25 minutes. The peak months for UV exposure are May through August, where the Index reaches a very high level of 9 to 10, allowing only 15 minutes of unprotected sun exposure. September and October see a decrease back to high and moderate levels respectively, with UV Index readings of 7 and 5, and burn times of 25 and 30 minutes. The year rounds out with lower risks in November and December, where the UV Index drops to 3 and 2, with burn times extending to 30 and 45 minutes. It is crucial for visitors and residents to prioritize sun safety, especially during the high-risk months of April to August by applying sunscreen, wearing protective clothing, and seeking shade when necessary.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Glencoe | 3 | 5 | 5 | 7 | 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 |