Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Jeffersonville, United States, as it directly impacts sunburn prevention and overall skin health. With its humid subtropical climate (Cfa), Jeffersonville experiences varying UV levels throughout the day, peaking at a striking 10 between 1 PM and 2 PM. This highlights the importance of being aware of daily UV exposure risks, especially during the summer months, to protect your skin from harmful effects. By staying informed about the UV Index, you can enjoy the sun while minimizing the risk of sunburn and long-term skin damage.
The UV Index chart reveals a dynamic daily pattern of solar intensity. Starting early in the day, the UV Index remains low, peaking at 1 by 08:00. However, as the sun reaches its zenith, the index surges dramatically—hitting 7 by 11:00 and soaring to a maximum of 10 between 13:00 and 14:00. This signals a critical window for sun exposure, where protection is essential. As the afternoon progresses, the UV levels begin to decline, dropping to 4 by 17:00, before tapering off to 1 again by evening. To stay safe, it's vital to be cautious during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | 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 | 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 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
Seasonal UV changes indicate a significant rise in ultraviolet exposure as the year progresses. From March to September, the UV Index reaches its peak, categorizing these months as high-risk for sunburn, especially from April through August, when the UV Index consistently remains at 10 (very high). During these high-risk months, burn times decrease to just 15 minutes, emphasizing the need for protective measures. Residents and visitors are advised to take precautions such as wearing sunscreen, protective clothing, and sunglasses, especially during peak sun hours. As we move into October and November, the UV Index falls, allowing for more moderate sun exposure with burn times of 25 and 30 minutes, respectively. Nonetheless, vigilance remains necessary throughout the year to mitigate UV-related health risks.
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 |
Jeffersonville | 3 | 5 | 7 | 9 | 10 | 10 | 10 | 10 | 9 | 7 | 5 | 3 |
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 |