Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Cascade, United States, where the climate often brings varying levels of sun exposure. As the sun's rays can intensify throughout the day, especially around midday when the UV Index peaks at a dramatic 11, being aware of UV levels is vital for preventing sunburn and protecting skin health. In Cascade's temperate climate, where sunny days are plentiful, it's essential to take proactive measures against harmful UV radiation. By keeping an eye on the UV Index, you can ensure enjoyable outdoor activities while safeguarding your skin’s well-being.
As the sun rises, the UV Index starts off low at 1 by 07:00, making it a safe time for outdoor activities. By 09:00, it rises to 3, signaling increasing sunlight. The real surge hits at 10:00 with a 5, reaching 8 by 11:00—a clear indication that sun protection is becoming necessary. The peak intensity arrives at 12:00, reaching a scorching 10, and continues to soar to an intense 11 from 13:00 to 14:00. As the afternoon rolls in, the index begins to dip slightly to 10 by 15:00, and further declines to 8 by 16:00. Finally, as the day unwinds, the UV levels decrease to 5 at 17:00, then settle at 3 and 2 by 18:00 and 19:00, respectively. Stay sun-smart during those peak hours to protect your skin!
| 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 | 8 | very high | 15 min |
| 12:00 | 10 | 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, the UV Index exhibits significant seasonal variations, with the highest risk occurring during the warmer months. From April to August, the UV Index consistently reaches levels classified as very high to extreme, peaking at 11 in June and July, where the burn time drops to just 10 minutes. These months are critical for visitors and residents to take precautions against overexposure. Conversely, during the winter months of January and December, the UV Index is much lower, with values of 3 and 2, and longer burn times of 30 and 45 minutes, respectively. It is advisable for everyone to prioritize sun protection measures—such as using sunscreen, wearing protective clothing, and seeking shade—especially during peak months to minimize skin damage and health risks.
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 |
| Cascade | 3 | 5 | 7 | 9 | 10 | 11 | 11 | 10 | 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 |