Last updated: July 2, 2025
Understanding the UV Index is essential for residents and visitors of Keeler Farm, United States, as it plays a crucial role in protecting your skin health and preventing sunburn. With the region's BSk climate, which features hot summers and low humidity, the risk of UV exposure can be particularly high, peaking during midday. The UV Index can soar to a staggering 13 around noon, making it vital to stay informed and take necessary precautions to safeguard your skin. By monitoring UV levels, you can enjoy the outdoors while minimizing the risk of harmful effects from sun exposure.
The UV Index shows a dramatic rise in intensity throughout the morning, starting from a mild 1 at 07:00. By 09:00, the index reaches 4, indicating a moderate level of sun exposure risk. The peak UV radiation occurs at 13:00, soaring to a concerning 13, suggesting that sun protection is essential during this hour. As the afternoon progresses, the index gradually declines, dipping to 10 by 15:00 and falling to 1 by 19:00. For outdoor enthusiasts, it’s crucial to seek shade and apply sunscreen during peak hours between 11:00 and 14:00 to ensure safety under the sun.
| 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 | 13 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | 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 |
Throughout the year, the UV Index shows significant seasonal changes, peaking during the summer months. From January to February, the UV levels rise from moderate (5) to high (7), with burn times decreasing from 30 minutes to 25 minutes. The following months, March through September, present the highest risks, with the UV Index reaching its maximum in June and July at 13, falling within the extreme category where burn times drop to just 10 minutes. After this peak, the index gradually decreases to 8 in October (very high) and continues to decline to 6 in November and 5 in December (both moderate). Visitors and residents are therefore advised to take extra precautions during the high-risk months of March through September, utilizing sunscreen, protective clothing, and seeking shade to mitigate UV exposure.
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 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |
| Keeler Farm | 5 | 7 | 10 | 12 | 12 | 13 | 13 | 12 | 11 | 8 | 6 | 5 |