Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Greenwood, United States, as it serves as a vital tool for sunburn prevention and overall skin health. With a climate characterized by hot summers and moderate rainfall in this Cfa climate zone, the risk of harmful UV exposure can peak dramatically, especially between 11:00 AM and 1:00 PM, when the index reaches an intense 11. By being aware of UV levels and taking appropriate precautions, you can safeguard your skin from damage, ensuring that your outdoor activities remain enjoyable and safe. Stay informed and protect yourself as you soak up the sun in Greenwood!
Expect a sunny day with a fluctuating UV Index that peaks at 11 around midday. The morning starts off gentle, with values rising from 1 at 7:00 AM to 4 by 9:00 AM. As the sun climbs higher, the UV Index escalates sharply, reaching 9 by 11:00 AM and hitting its highest point of 11 at both 12:00 PM and 1:00 PM. After the sun’s zenith, the UV levels gradually decline, dropping to 10 at 2:00 PM and tapering off to 1 by 7:00 PM. Remember to protect your skin during those peak hours for a safe and enjoyable day outdoors!
| 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 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so does the UV Index, which significantly impacts sun exposure and the risk of skin damage. January and December are generally safer months with a moderate exposure category (UV Index 4), allowing for about 30 minutes of burn time. However, by February, the risk rises to high (UV Index 7) with a burn time of 25 minutes. The peak risk occurs from March to August, where the index reaches extreme levels (UV Index 10-12), allowing only 10 minutes of sun exposure without protection. High-risk months also include April and May, which feature very high to extreme categories. September and October still present significant risks with very high levels (UV Index 8-9). For the safety of residents and visitors, it is crucial to wear sunscreen, seek shade, and limit sun exposure during these high-risk months, particularly from late winter through summer.
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 |
| Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
| Greenwood | 4 | 7 | 8 | 10 | 11 | 12 | 11 | 11 | 9 | 8 | 6 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |