Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Centralia, United States, where the combination of a humid subtropical climate (Cfa) and varying sun exposure can significantly impact skin health. Being aware of UV levels aids in preventing sunburn and reducing the risk of long-term skin damage. With peak UV Index values soaring to 11 around midday, it’s essential for Centralia’s community to recognize the dangers associated with these high levels and take protective measures, especially during the summer months when UV exposure risks are at their highest. Stay informed and shield yourself to enjoy the sunshine safely!
As the sun rises, the UV Index begins steadily climbing, starting at a mere 1 at 7:00 AM. By 9:00 AM, it reaches a moderate 4, signaling more intense rays ahead. The peak arrives right at 12:00 PM, where the UV Index hits a sizzling 10, followed closely by a high of 11 at 1:00 PM—perfect times to seek shade and protect your skin. As the afternoon progresses, the numbers gently descend, dipping to 8 at 3:00 PM and eventually falling back to 1 by 7:00 PM. This hourly data paints a clear picture: mid-day offers the strongest sun exposure, making sun safety paramount during those crucial hours. Enjoy the sun, but stay protected!
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 | 11 | extreme | 10 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 | 1 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, UV Index values exhibit notable seasonal changes, with the highest levels typically occurring during the late spring and summer months. March marks the shift into high UV exposure, escalating to an extreme UV Index of 11 in May and June, indicating significant risk for skin damage with a very short burn time of just 10 minutes. Visitors and residents should be particularly vigilant from April to September, the high-risk months, where daily activities should involve protective measures such as sunscreen, hats, and UV-blocking clothing. As the year progresses into fall and winter, UV levels decrease, returning to a moderate category, but it’s essential to remain cautious even during this time, especially on sunny days.
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 |
Centralia | 3 | 5 | 7 | 9 | 11 | 11 | 10 | 10 | 9 | 7 | 5 | 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 |