Last updated: June 2, 2025
Understanding the UV Index is essential for residents of Stapleton, United States, where the sun shines brightly, particularly during the summer months in this Dfa climate zone. Keeping an eye on UV levels can significantly aid in sunburn prevention and promote overall skin health, as the potential for harmful exposure rises, especially during peak hours. With maximum UV Index values soaring to 11 around noon, knowing when to seek shade or apply sunscreen becomes crucial for safeguarding your skin while enjoying the outdoors in Stapleton. Stay informed and protect yourself against the sun’s powerful rays!
As the sun rises, the UV Index remains relatively low, starting at a gentle 1 from 07:00 to 09:00. However, as the day progresses, the UV levels ramp up significantly, reaching a moderate 5 by 10:00 and hitting a peak of 11 between 13:00 and 14:00. This period signifies the highest risk, urging outdoor enthusiasts to take precautions. By 15:00, the index starts to dip to 10, followed by a gradual decline to 5 at 17:00, and settling at 2 by 19:00. It's a clear reminder that during midday, when the sun is at its strongest, the need for protection is paramount to safeguard against harmful UV radiation. Enjoy the sunshine, but don't forget your sunscreen! ☀️
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | 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 | 11 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV Index values exhibit significant seasonal variations, indicating higher risks during the peak summer months. January and December have a moderate UV Index of 3, allowing for a burn time of 30 minutes. As winter transitions into spring, February sees an increase to 5, while March escalates to a 6 (high category). The UV Index peaks during the summer, particularly in June and July, reaching an extreme level of 11, where the burn time drops to just 10 minutes. April and May present very high levels at 8 and 10, respectively. As summer wanes, August and September remain notably high with UV Index readings of 10 and 9. Finally, October registers a high UV level of 6, before dropping back to moderate levels in the late fall and winter months. To ensure safety, it is crucial for visitors and residents to take precautions, especially during April through September, where the risk of harmful UV exposure is highest. Wearing sunscreen, protective clothing, and seeking shade during peak hours are highly recommended during these months.
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 |
| Stapleton | 3 | 5 | 6 | 8 | 10 | 11 | 11 | 10 | 9 | 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 |