Last updated: May 3, 2025
Understanding the UV Index is essential for residents and visitors of Grissom Air Force Base, where the Dfa climate can expose individuals to varying levels of ultraviolet radiation throughout the day. With peak UV levels reaching 10 between noon and 2 PM, it's crucial to be aware of the potential risks, such as sunburn and long-term skin damage. By keeping an eye on UV levels, you can take the necessary precautions to protect your skin and enhance your overall health, ensuring that your time outdoors remains safe and enjoyable.
As the sun rises, the UV Index remains low, starting at a mere 1 at 07:00 and 08:00. By 09:00, it nudges up to 2, but the real intensity kicks in around 10:00, reaching 4. The midday sun peaks at 12:00, where the UV Index skyrockets to an impressive 8, and it hits its zenith shortly after at 13:00 and 14:00, both recording a maximum of 10. As the afternoon wanes, the levels gradually decline: to 9 at 15:00, 7 at 16:00, and down to 4 at 17:00. By evening, the UV Index drops to 3 at 18:00 before settling back to 1 at 19:00. Be sun-smart—this midday window is crucial for protecting your skin!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 2 | low | 45 min |
10:00 | 4 | moderate | 30 min |
11:00 | 6 | high | 25 min |
12:00 | 8 | very high | 15 min |
13:00 | 10 | very high | 15 min |
14:00 | 10 | very high | 15 min |
15:00 | 9 | very high | 15 min |
16:00 | 7 | high | 25 min |
17:00 | 4 | moderate | 30 min |
18:00 | 3 | moderate | 30 min |
19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, with the highest levels occurring during the summer months. High-risk months for UV exposure include April through September, when the UV Index reaches very high levels of 9 or 10, significantly reducing the safe burn time to just 15 minutes. Visitors and residents are strongly advised to take precautions during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sun hours. Conversely, the winter months of December and January present lower UV risks, with indices of 2 and 3, allowing for safer exposure times of 30 to 45 minutes. Overall, awareness of seasonal changes in UV levels is crucial for protecting skin health throughout the year.
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 |
Grissom Air Force Base | 3 | 5 | 6 | 9 | 9 | 10 | 10 | 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 |