Last updated: May 3, 2025
Understanding the UV Index in Guymon, United States, is crucial for maintaining skin health and preventing sunburn, especially during the peak summer months. With the area's BSk climate, which combines chilly winters with hot, dry summers, Guymon experiences varying UV exposure that can quickly escalate during midday. During peak hours, the UV Index can reach a maximum of 11, indicating an extremely high risk of harm from unprotected sun exposure. Being aware of the UV levels not only helps you enjoy the outdoors safely but also plays a vital role in long-term skin health. So, whether you're planning a day of fun in the sun or simply stepping outside, knowing the UV Index is your first step towards protecting your skin!
As the sun rises, the UV Index peaks in intensity throughout the day, starting at a mild 1 by 07:00. Gradually, it climbs to 2 by 09:00, but the real heat kicks in just before noon, where it bursts to a crisp 9 by 12:00. The afternoon sees this intensity soar to a maximum of 11 at both 13:00 and 14:00, indicating an immediate need for sun protection. As the day begins to wind down, UV levels decrease, dropping to 5 by 17:00, and settling back to 1 by 19:00. Peak intensity typically occurs between late morning and early afternoon, reminding us to stay vigilant in safeguarding our skin during these critical hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 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 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, peaking during the summer months of May to August, where it reaches extremes of 11 to 12. The highest risk occurs in May, June, and July, with burn times as short as 10 minutes under these conditions. March and April also present considerable UV exposure, categorized as very high, with burn times of just 15 minutes. Visitors and residents should exercise caution from late winter through summer, especially during these high-risk months, by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen regularly to minimize the risk of skin damage. As the season transitions into fall and winter, UV levels decrease, offering more moderate exposure from October to December.
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 |
| Guymon | 4 | 6 | 8 | 10 | 11 | 12 | 12 | 11 | 10 | 7 | 5 | 3 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |