Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Melrose, United States, especially considering its variations throughout the day. Awareness of UV levels not only aids in preventing sunburn but is also instrumental in maintaining long-term skin health. With a Csb climate, Melrose experiences certain UV exposure risks, particularly during peak hours, where the index can reach a high of 10 between 1 PM and 2 PM. Protecting your skin from harmful UV rays is essential for enjoying the beautiful sunny days that come with living in this charming region.
The UV Index reveals a dynamic ascent and descent throughout the day, peaking with intensity during midday. Starting at a gentle 1 at 7:00 AM, it climbs steadily, reaching 10 by 1:00 PM and maintaining this highest level until 2:00 PM. This critical window indicates significant sun exposure, and it’s essential to take precautions. As the afternoon progresses, the index begins to taper off, dropping to 8 at 3:00 PM, then gradually falling to 1 by 7:00 PM. This data highlights the importance of being sun-smart during the peak hours to minimize UV exposure risks.
| 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 | 8 | very high | 15 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, the UV Index varies significantly, peaking during the summer months. January and February have a moderate exposure level (UV Index 3 and 4), with a relatively longer burn time of 30 minutes. As spring approaches, March ushers in higher UV levels (6, high exposure) and a reduced burn time of 25 minutes. The months of April through August present the highest risk, with the UV Index reaching its peak at 10 during May, June, and July, all classified as very high exposure with a burn time of only 15 minutes. August and September still remain risky, with UV Index values of 9 and 8, respectively. As fall arrives, October sees a decline to a high level (UV Index 6) before dropping back to moderate in November and low in December. Visitors and residents are advised to take precautionary measures during high-risk months—especially from April to September—by wearing protective clothing, sunscreen, and seeking shade to prevent skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Melrose | 3 | 4 | 6 | 8 | 10 | 10 | 10 | 9 | 8 | 6 | 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 |