Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Phillipsburg, United States, where the climate can expose individuals to varying levels of ultraviolet radiation throughout the year. Being aware of UV levels not only helps to prevent painful sunburns but also plays a significant role in protecting skin health and reducing the risk of long-term damage. With Phillipsburg typically experiencing warm summers and moderate UV exposure, it’s essential for residents to keep an eye on the UV Index, especially during peak hours when values soar to 11, indicating a very high risk of harm from unprotected sun exposure. Stay informed and enjoy the sun safely!
The UV Index throughout the day exhibits a remarkable peak, beginning at a low 1 in the early hours, gradually rising to 5 by 10:00. As the sun reaches its zenith, the index soars to an impressive 10 at 12:00, hitting a maximum of 11 from 13:00 to 14:00. This intense exposure makes midday the most critical time for sun protection. As the afternoon progresses, the index begins to dip, falling to 7 at 16:00, and winding down to a gentle 3 by 18:00. By 19:00, the UV Index drops back to 1, signaling a return to safer sun conditions. Planning outdoor activities? Make sure to take precautions from late morning to mid-afternoon, when the sun’s rays are most powerful!
| 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV Index levels fluctuate significantly, with the highest risk observed during the spring and summer months. From February to August, the UV Index remains at a very high to extreme level, peaking at 11 in May, June, July, and August, where the burn time is as short as 10 minutes. Visitors and residents are advised to take extra precautions during these months by wearing protective clothing, applying sunscreen regularly, and seeking shade, especially during midday hours. In contrast, January and December experience moderate UV levels, allowing for longer exposure times of 30 minutes before burning. As the UV levels decline entering the fall months, particularly in November with a high index of 6 (burn time of 25 minutes), it is still prudent to remain vigilant against UV exposure.
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 |
| Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
| Phillipsburg | 5 | 8 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 8 | 6 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |