Last updated: July 2, 2025
In La Grande, United States, staying informed about the UV Index is crucial for maintaining skin health and preventing sunburn. With a Csb climate that features warm, sunny days, understanding UV levels can help residents protect themselves during peak exposure times. The UV Index data clearly indicates that from 11 AM to 2 PM, levels can soar to 10, signifying a high risk of harm from unprotected sun exposure. By monitoring these levels, you can enjoy the beautiful outdoors while safeguarding your skin against harmful ultraviolet rays.
The UV Index for today exhibits a clear rise in intensity as the sun reaches its peak. Starting from a gentle 1 at 07:00, the index climbs steadily, touching 2 by 08:00 before surging to 4 at 09:00. The real intensity kicks in around 10:00, where it peaks at a blazing 10 between 12:00 and 14:00, indicating a critical level of solar radiation. As the afternoon wanes, the index starts to dip, marking 8 at 15:00 before descending to 3 by 17:00. As evening approaches, the UV level recedes to 1 by 19:00, signaling a safer time for outdoor activities as the sun sets. Stay sun-smart!
| 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 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, indicating varying levels of sun exposure risk. From January (UV Index 3) to December (UV Index 2), the risk generally decreases, but high-risk months span from March to September, with May, June, and July peaking at a UV Index of 10, categorized as very high. During these months, residents and visitors should be particularly cautious, as the burn time drops to just 15 minutes. It is advisable to wear protective clothing, apply sunscreen, and seek shade during peak hours to minimize skin damage. Conversely, October and November offer moderate exposure risks with increased burn times of 30 minutes, while December presents the lowest risk at a UV Index of 2, allowing for 45 minutes of safe sun 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 |
| La Grande | 3 | 5 | 7 | 8 | 10 | 10 | 10 | 9 | 8 | 5 | 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 |