Last updated: May 3, 2025
In Calumet, United States, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With the city's Dfb climate often exposing residents to varying UV levels throughout the day, awareness of these changes can significantly affect your outdoor activities. As UV levels peak between 12 PM and 2 PM, reaching as high as 8, it’s vital to take precautions to protect your skin. By staying informed about the UV Index, you can enjoy the sun safely while minimizing the risks associated with prolonged exposure.
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 at 07:00 and remaining low until 09:00, when it climbs to 2. The midday sun showcases its strength, peaking at 12:00 with an impressive 7. By 13:00 and 14:00, the index reaches its zenith at 8, signaling a time for caution and protection against harmful rays. Thankfully, the intensity starts to wane after 15:00, dropping to 7, and continuing its descent to 4 at 17:00. As the day draws to a close, the index falls back to a safer 1 by 19:00, providing a gentle reminder of the sun's power and the importance of sun safety to enjoy the outdoors wisely.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 6 | 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 fluctuates significantly, impacting sun exposure risks for both visitors and residents. January to March sees a gradual increase from a low UV Index of 2 to a moderate 5, with burn times decreasing from 45 minutes to 30 minutes. The risks escalate sharply in April with a high UV Index of 7, peaking during the summer months of May through August, where the Index reaches 8 and 9, corresponding to a very high exposure category and a burn time of just 15 minutes. September marks a gradual decline back to a high Index of 7, then it drops to moderate levels in October, before returning to low risks in November and December. Visitors and residents are advised to take precautions during high-risk months, especially from April to August, by wearing protective clothing, applying sunscreen, and seeking shade to minimize the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calumet | 2 | 4 | 5 | 7 | 8 | 9 | 9 | 8 | 7 | 5 | 2 | 2 |
| 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 |
| 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 |