Last updated: May 3, 2025
As residents of Corvallis, understanding the UV Index is crucial for safeguarding your skin and overall health against the sun's harmful rays. Elevated UV levels can lead to painful sunburns and long-term skin damage, making awareness especially important during peak hours. With a Dfb climate, Corvallis experiences varying UV exposure risks throughout the year, most notably peaking in the summer months when the index can soar to 10 between 1 PM and 3 PM. Stay informed to protect yourself while enjoying the beautiful outdoors!
The UV Index for the day showcases a striking ascent in intensity, peaking during the afternoon hours. Starting from a low of 1 at 07:00 and 08:00, the index swiftly climbs to reach 3 by 09:00. By 10:00, it escalates to a moderate 5, but the real surge occurs between 11:00 and 14:00, hitting a maximum of 10—indicating a high risk of harm from unprotected sun exposure. As the day progresses, the UV Index gradually drops, retracting to 4 by 17:00 and further declining to 1 by 19:00. It's crucial to stay protected during those peak hours!
| 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 | 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 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | 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 |