Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Stephens, United States, where the climate — classified as Cfa — can pose unique sun exposure risks. As UV levels can peak at a remarkable 11 during midday hours, awareness of these fluctuations is essential for preventing sunburn and protecting skin health. Knowing when to seek shade or apply sunscreen not only helps mitigate immediate discomfort but also significantly reduces long-term skin damage. With sunny days typical in this region, staying informed about the UV Index is vital for enjoying the outdoors safely.
At 07:00, the UV Index starts at a mild 1, perfect for an early morning stroll. As the day unfolds, the intensity gradually climbs, reaching 2 by 08:00 and 3 by 09:00. The sun packs a punch at 10:00, soaring to a 6. By 11:00, it hits a significant 8, warning us to take precautions. The peak intensity arrives at 12:00, where the UV Index surges to a blistering 11. It maintains this level until 14:00, demanding attention and protection from the sun's rays. A gradual decline starts at 15:00, lowering to 9, followed by 6 at 16:00. As evening approaches, the numbers drop further to 4 at 17:00, a gentle reminder of the sun's retreat. Finally, by 18:00, it's down to 2, and by 19:00, we're back to a comfortable 1, marking the end of a sun-drenched day. ✨
| 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 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index demonstrates significant seasonal variation, with high-risk months primarily occurring from March to August when values reach their peak. Notably, May through July feature extreme UV Index levels (11-12), with a burn time as short as 10 minutes. This indicates that during these months, individuals should take extra precautions, such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours. Conversely, in January and December, with a moderate UV Index of 4, burn times extend to 30 minutes, suggesting lower risk for sunburn. Visitors and residents are encouraged to remain vigilant and adjust their sun exposure habits in accordance with these fluctuations throughout the year to protect their skin health.
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 |
| Stephens | 4 | 6 | 8 | 10 | 11 | 12 | 11 | 11 | 10 | 8 | 6 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |