Last updated: June 2, 2025
In Arnold, United States, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps prevent sunburn and long-term skin damage, especially in this Dfa climate, where sunny days can lead to higher UV exposure risks. With maximum UV Index values reaching as high as 11 around midday, it's essential to stay informed about sun exposure to enjoy the outdoors safely. By checking the UV Index daily, you can take proactive steps to safeguard your skin while enjoying the beautiful, sunny environment that Arnold has to offer.
As the sun rises, the UV Index remains relatively low, starting at a gentle 1 from 07:00 to 09:00. However, as the day progresses, the UV levels ramp up significantly, reaching a moderate 5 by 10:00 and hitting a peak of 11 between 13:00 and 14:00. This period signifies the highest risk, urging outdoor enthusiasts to take precautions. By 15:00, the index starts to dip to 10, followed by a gradual decline to 5 at 17:00, and settling at 2 by 19:00. It's a clear reminder that during midday, when the sun is at its strongest, the need for protection is paramount to safeguard against harmful UV radiation. Enjoy the sunshine, but don't forget your sunscreen! ☀️
| 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 | 11 | extreme | 10 min |
| 14:00 | 11 | 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 | 2 | low | 45 min |
Throughout the year, UV Index values exhibit significant seasonal variations, indicating higher risks during the peak summer months. January and December have a moderate UV Index of 3, allowing for a burn time of 30 minutes. As winter transitions into spring, February sees an increase to 5, while March escalates to a 6 (high category). The UV Index peaks during the summer, particularly in June and July, reaching an extreme level of 11, where the burn time drops to just 10 minutes. April and May present very high levels at 8 and 10, respectively. As summer wanes, August and September remain notably high with UV Index readings of 10 and 9. Finally, October registers a high UV level of 6, before dropping back to moderate levels in the late fall and winter months. To ensure safety, it is crucial for visitors and residents to take precautions, especially during April through September, where the risk of harmful UV exposure is highest. Wearing sunscreen, protective clothing, and seeking shade during peak hours are highly recommended during these months.
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 |
| Arnold | 3 | 5 | 6 | 8 | 10 | 11 | 11 | 10 | 9 | 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 |