Last updated: May 3, 2025
In Arapahoe, United States, understanding the UV Index is essential for maintaining skin health and preventing sunburn. The UV Index serves as a crucial daily guide, allowing residents and visitors to anticipate their risk of overexposure to harmful rays. With a Dfa climate characterized by hot summers, UV levels can soar, particularly during midday when they peak at an alarming 10. By staying informed about local UV conditions, you can take proactive measures to protect your skin from damage and enjoy the beautiful, sunny days that Arapahoe has to offer.
The UV Index today reveals a dynamic shift in sunlight intensity, peaking around noon. Starting off at a low of 1 at 7:00 AM and 8:00 AM, the index climbs steadily, hitting 3 by 9:00 AM. As the sun climbs higher, the index soars to 4 at 10:00 AM, then reaches a warning level of 7 by 11:00 AM. The true intensity arrives at 12:00 PM, where the index peaks at an impressive 9, soon followed by a maximum of 10 from 1:00 PM to 2:00 PM. As afternoon transitions into evening, the UV Index decreases to 9 at 3:00 PM, then gently retreats to 4 by 5:00 PM, and further down to a cooling 1 by 7:00 PM. It’s crucial to take precautions during the midday hours to protect your skin from the strongest UV rays!
| 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 | 4 | 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 | 9 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure varies significantly, with high-risk months typically occurring from March to September. During these months, particularly in April through July, the UV index reaches notably high levels, peaking at 11, which indicates extreme exposure risks and a quick burn time of just 10 minutes. As the seasons shift, visitors and residents should be particularly vigilant from May to August, when protective measures such as sunscreen, hats, and seeking shade are essential to prevent skin damage. In contrast, January, November, and December present a moderate UV index of 3-4, allowing for longer burn times of 30 minutes, though sunscreen should still be applied. Staying informed about these UV changes can help ensure safe outdoor activities year-round.
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 |
| Arapahoe | 3 | 5 | 7 | 9 | 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 |