Last updated: June 2, 2025
In Corvallis, understanding the UV Index is essential for protecting your skin and overall health against harmful ultraviolet radiation. With peak UV levels reaching 10 in the early afternoon, awareness of these levels can significantly reduce the risk of sunburn and long-term skin damage. The Dfb climate here brings a mix of seasonal changes, but on sunny days, even a brief exposure can accumulate and lead to serious skin issues. Stay informed about the UV Index to enjoy the outdoors safely while safeguarding your skin!
As the sun rises, the UV Index starts off modestly at a maximum of 1 by 7:00 AM, gradually climbing as the day unfolds. By 10:00 AM, it reaches a moderate 5, signaling time to be mindful of sun exposure. The peak occurs around 1:00 PM and 2:00 PM, where it spikes to a startling 10, indicating very high UV levels—definitely a time for sunscreen and protection! Fortunately, the intensity begins to wane as the afternoon progresses, dipping to 7 by 4:00 PM and settling at 3 by 6:00 PM, making the late evening a safer time to enjoy outdoor activities. Overall, today presents a clear invitation to embrace the sun wisely while protecting your skin during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 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 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
As the seasons change, the UV Index presents notable fluctuations that can significantly impact skin health. January and February exhibit a moderate UV Index of 3 and 4, respectively, allowing for a burn time of 30 minutes. However, as spring approaches, March sees a jump to a high UV Index of 6 with a reduced burn time of 25 minutes. The high-risk months for UV exposure arise in late spring and summer, particularly from April to August, when the UV Index peaks at 10 in May through July, necessitating a short burn time of just 15 minutes due to the very high exposure category. Even in August and September, the levels remain concerning at 9 and 8; thus, it is essential for both visitors and residents to take precautions, such as using sunscreen, wearing protective clothing, and seeking shade during peak hours. As the year progresses towards fall and winter, UV levels drop significantly, with October refreshing a moderate Index of 5 and December a low Index of 2, allowing for longer burn times of 30 and 45 minutes, respectively. Always stay vigilant about UV levels to protect your skin year-round.
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 |
| Corvallis | 3 | 4 | 6 | 8 | 10 | 10 | 10 | 9 | 8 | 5 | 3 | 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 |