Last updated: May 3, 2025
Understanding the UV Index in Whitehall, United States is crucial for safeguarding your skin health against harmful ultraviolet radiation. With the local climate categorized as BSk, residents and visitors face unique exposure risks, particularly during summer months when UV levels can soar. High UV readings—reaching a peak of 10 around midday—underscore the importance of taking preventive measures against sunburn and long-term skin damage. By staying informed about daily UV levels, you can enjoy the sunny outdoors while protecting your skin and reducing the risk of serious health issues.
The UV index begins its ascent at 07:00, starting at a gentle 1, then climbs gradually through the morning. By 10:00, it reaches a moderate 5, but from 11:00 onwards, the sun's intensity becomes pronounced, peaking at an impressive 10 between 13:00 and 14:00. After this zenith, the index dips to 8 at 15:00 and continues its decline, settling back to 2 by 18:00. As the day winds down into the evening, the UV index drops to a low 1 by 19:00, signaling a return to safer sun exposure levels. Enjoy the sunshine while staying protected during the high points!
| 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 | 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 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV levels fluctuate significantly, with notable increases during the spring and summer months. January and February present moderate UV levels (Index 3 and 5), allowing for relatively safer sun exposure with a burn time of 30 minutes. However, as March rolls in, the UV Index rises to 7, marking the transition to high risk, and this trend continues to escalate through April and May, when UV levels reach 9 and 10 (very high), requiring caution with a burn time of just 15 minutes. The peak occurs in June, where the UV Index hits 11, classified as extreme, necessitating minimal sun exposure and diligent protection measures with a mere 10-minute burn time. This high risk persists through July and August (both at 10), before tapering off slightly in September (UV Index 8) and October (UV Index 6). The autumn months of November and December see a drop back to moderate and low levels (Indexes 4 and 2), allowing for longer exposures of 30 and 45 minutes, respectively. Consequently, individuals are advised to be particularly vigilant during the high-risk months of March through September, ensuring adequate sun protection, such as sunscreen, hats, and protective clothing, to minimize the risk of skin damage.
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 |
| Whitehall | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 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 |