Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Mayfield, United States, where the climate can lead to significant sun exposure throughout the year. With UV levels peaking in the summer months, being aware of these measurements can help you take steps to prevent sunburn and maintain better skin health. During Mayfield's warm days, UV Index values can soar to dangerous levels, particularly between 11 AM and 1 PM, highlighting the need for sun safety measures. As part of the BSk climate zone, this area experiences unique weather patterns that can intensify UV radiation. Stay informed and protect yourself and your loved ones from harmful effects of the sun!
As the sun rises, the UV Index begins its ascent, reaching 1 by 07:00. By 08:00, it climbs to 2, signaling the start of the day’s UV exposure. Things heat up quickly, reaching 4 at 09:00 and then jumping to 6 by 10:00. The intensity peaks dramatically at 12:00, hitting 11, and just an hour later, 13:00, it reaches its maximum of 12. This high level continues until 14:00, where it remains steady. As the afternoon progresses, the UV Index begins to decline: jotting down to 10 at 15:00, then 8 at 16:00, and tapering off to 5 by 17:00. By the evening hours, it gently reduces to 3 at 18:00 and settles back to 1 by 19:00. This cycle underscores the importance of sun safety during peak hours, especially between 11:00 and 14:00 when UV exposure is at its strongest.
| 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 | 12 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences notable seasonal changes throughout the year, reaching its peak during the summer months. April through August are considered high-risk months for UV exposure, with indices consistently at 11-12, categorizing them as extreme. In these months, the burn time is reduced significantly to just 10 minutes, underscoring the need for protective measures. As the year transitions into fall, the UV Index begins to decline, with October and November still maintaining a high rating of 6-7. To ensure safety, both residents and visitors should be vigilant during the high-risk months by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen regularly. In contrast, during January and December, when the UV Index drops to 4, the risk is lower, allowing for more leisurely outdoor activities without as much concern for sunburn.
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 |
| Mayfield | 4 | 7 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 7 | 6 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |