Last updated: May 3, 2025
In Monticello, United States, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. As a region with a Dfa climate, Monticello experiences significant UV exposure, particularly during the summer months when the sun’s intensity peaks around midday. With UV Index levels soaring to 10 at noon, awareness of these levels empowers residents and visitors to take proactive measures against harmful UV radiation. By staying informed, you can enjoy the beautiful outdoor scenery while protecting your skin from long-term damage. Remember, a little precaution goes a long way in ensuring a safe and healthy sun-filled experience!
The UV Index throughout the day showcases a significant peak during midday. Starting at a modest level of 1 at 07:00, it gradually climbs to 2 by 08:00, and rises to 3 by 09:00. The real intensity kicks in around 10:00, hitting 5, before reaching its zenith at 13:00 with a high of 10—a crucial reminder to seek shade and apply sunscreen. As the afternoon progresses, the index gently decreases, dropping to 9 at 14:00 and further to 5 by 16:00. By evening, it cools down to 3 at 17:00, tapering off to 1 by 19:00. Plan your outdoor activities accordingly to stay protected when the sun is at its strongest!
| 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 | 9 | very high | 15 min |
| 15:00 | 8 | very high | 15 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 |
During the year, UV levels exhibit significant seasonal changes, with March to September being the high-risk months where exposure becomes a notable concern. Starting from March, the UV Index rises sharply, peaking at 11 in June, categorized as extreme with a burn time of just 10 minutes. April and May also present very high risks with a UV Index of 9 and 10, respectively. As the summer progresses, July and August continue with a UV Index of 10, gradually declining to 8 in September. October marks a transition back to elevated, but more manageable, levels, tapering off to moderate exposure in winter months (November and December) with indices at 4 and 3. Residents and visitors should take precautions from March through September by applying sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours to minimize the risk of UV-related health issues.
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 |
| Monticello | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 8 | 6 | 4 | 3 |
| 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 |