Last updated: August 1, 2025
In Glenwood Springs, United States, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps residents and visitors alike to minimize the risk of sunburns and long-term skin damage, especially during peak hours when the UV Index soars to a high of 12 around noon. With its Dfc climate zone, Glenwood Springs experiences a unique mix of mountainous terrain and changing weather patterns, which can lead to fluctuating UV exposure risks. By being aware of the UV Index, you can enjoy the beautiful outdoors while taking proactive steps to safeguard your skin.
The UV Index showcases a dynamic rise and fall throughout the day, peaking impressively at 12 between 1:00 PM and 2:00 PM. Starting at a gentle 1 at 7:00 AM, the index steadily climbs, reaching 9 by 11:00 AM. The sun's intensity culminates at 11 by noon, before hitting its highest point at 12. A gradual decline follows, with readings of 10 at 3:00 PM, dropping to 4 by 5:00 PM, and tapering off to 1 once again by 7:00 PM. This data serves as a crucial reminder to take precautions during peak hours for optimal sun safety.
| 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 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | 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 exposure varies significantly, with the highest risk months occurring from March to August when the UV Index reaches extreme levels (12 to 13) and the burn time is as little as 10 minutes. In contrast, January and December show a moderate UV Index of 4, allowing for a safer 30-minute exposure without sunburn risk. Visitors and residents are strongly advised to take extra precautions during the spring and summer months, including using sunscreen, wearing protective clothing, and seeking shade during peak hours, especially in April and June when UV levels are at their highest. As the year progresses into the fall and winter, UV levels decrease, but individuals should remain vigilant, particularly in early spring when levels begin to rise again.
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 |
| Glenwood Springs | 4 | 6 | 9 | 12 | 12 | 13 | 12 | 12 | 10 | 7 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |