Last updated: May 3, 2025
Understanding the UV Index is vital for residents of Mountain Iron, United States, where the climate can lead to varying levels of sun exposure throughout the year. With peak UV levels reaching 8 around noon, awareness of UV radiation is essential for preventing sunburn and maintaining overall skin health. By tracking these levels, you can enjoy the beautiful outdoors while safeguarding yourself against the damaging effects of UV rays, particularly in this Dfb climate zone, where seasonal fluctuations can impact your sun safety practices. Stay informed, protect your skin, and make the most of the stunning natural surroundings that Mountain Iron has to offer!
The UV Index throughout the day presents a dynamic landscape of sun exposure. Starting off at a mild 1 at 7:00 AM, the intensity gradually rises, hitting 2 by 8:00 AM and 3 by 9:00 AM. The real peak emerges at 12:00 PM and 1:00 PM, where it reaches a robust 8—a signal to seek shade and cover up! As the afternoon progresses, the index gently declines to 6 by 3:00 PM, before tapering off further to 2 by 6:00 PM, and finally returning to a cool 1 by 7:00 PM. This data reminds us to be sun-smart during those critical midday 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 | 6 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 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 notable seasonal changes, with significant increases from late winter into summer. January sees a low UV Index of 2, indicating minimal risk, while February and March rise to 4 and 5, respectively, where exposure becomes moderate. April marks the onset of high-risk periods with a UV Index of 7, peaking in May and June at 8 and 9, categorized as very high. This trend continues into July and August, where protective measures are essential due to the same high values of 9 and 8. By September, the UV Index decreases to 7, signaling a return to high risk but gradually moderating through October (5) and November (3) before dropping back to low levels in December. Visitors and residents are strongly advised to prioritize sun protection during the months of May through September, when the potential for skin damage is greatest, using protective clothing, sunscreen, and seeking shade during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mountain Iron | 2 | 4 | 5 | 7 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 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 |