Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Koontz Lake, United States, as it plays a vital role in protecting skin health. With a climate classified as Dfa, the area experiences varying levels of ultraviolet radiation, particularly peaking around midday with an index rising to 9 between 1 PM and 2 PM. Awareness of UV levels is essential not only for sunburn prevention but also for long-term skin health, as excessive exposure can lead to serious conditions, including skin cancer. By keeping an eye on the UV Index, locals can take informed steps to enjoy the outdoors while safeguarding their skin against the sun’s harmful rays.
The UV Index during this day exhibits a notable climb and fall, reaching its peak of 9 between 1 PM and 2 PM. Starting the day at a mild 1 at 7 AM and 8 AM, it gradually transitions to 2 by 9 AM. The significant rise begins at 10 AM, where it spikes to 4 and continues to escalate, hitting 6 at 11 AM and an impressive 8 by noon. As the sun reaches its zenith, the index maxes out at 9, indicating a strong need for protection against UV radiation. Subsequently, it starts to dip, settling down to 7 by 4 PM, and gracefully tapering off to 1 by 7 PM. To stay safe and enjoy the outdoors, it's crucial to take precautions during those peak hours!
| 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 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 8 | 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, UV exposure varies significantly, with notable spikes during the summer months. January and February have a moderate UV Index of 3 and 5, respectively, allowing for around 30 minutes of sun exposure before burning. However, as spring approaches, March sees an increase to a high UV Index of 6, reducing burn time to 25 minutes. The intensity peaks in April and continues through August, where the UV Index reaches a very high level of 9 or 10, resulting in only 15 minutes of safe exposure. September starts to ease with an index of 8, followed by a return to high levels in October (6) and gradually decreasing to moderate levels in November and December (4 and 3, respectively). High-risk months for UV exposure are from April through September, during which residents and visitors are advised to take precautions such as using sunscreen, wearing protective clothing, and limiting sun exposure during peak hours.
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 |
| Koontz Lake | 3 | 5 | 6 | 9 | 9 | 10 | 10 | 9 | 8 | 6 | 4 | 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 |