Last updated: July 2, 2025
In Worland, Wyoming, awareness of the UV Index is crucial for maintaining skin health and preventing harmful sunburns. Understanding the UV levels—especially with indices peaking at 11 during midday hours—empowers residents and visitors alike to take necessary precautions against overexposure to ultraviolet radiation. Given Worland's semi-arid climate, where sunny days are frequent, the risks of UV radiation can be elevated, particularly during the summer months. By keeping a close eye on the UV Index, you can enjoy the beautiful outdoor landscapes while safeguarding your skin from potential damage.
The UV Index throughout the day exhibits a striking pattern of intensity, peaking at a formidable 11 between 1 PM and 2 PM. Starting off the morning at a mild 1 at 7 AM, the index gradually rises, reaching 2 by 8 AM and escalating to 4 by 9 AM. As the sun climbs higher, the UV Index surges, hitting 6 at 10 AM and soaring to its maximum of 10 by 12 PM. The early afternoon sees the highest measured value of 11 at 1 PM, emphasizing the need for sun protection during this critical time. Following this peak, the index begins to dip, dropping to 10 at 2 PM, then to 9 at 3 PM, and continuing to decline to 4 by 5 PM. By the time evening sets in at 7 PM, the UV Index retreats back to a safe 1, allowing for a gentler end to the day. Remember, during the peak hours of 11 AM to 2 PM, minimal exposure is crucial to safeguard your skin from harmful UV rays!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 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 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, ultraviolet (UV) radiation levels fluctuate significantly, impacting the risk of sunburn and skin damage. Higher UV Index values are observed from March to September, with the highest risks occurring in June and July (UV Index 11, extreme), where the recommended burn time is just 10 minutes. As spring transitions into summer, the UV Index escalates from a moderate level of 3 in January to very high levels of 8 in April and 10 in May. Visitors and residents are strongly advised to take precautions during these high-risk months, particularly from April through August, by using sunscreen, wearing protective clothing, and seeking shade during peak hours. In contrast, the UV Index decreases in the fall and winter, dropping to a low of 2 in December, where the burn time extends to 45 minutes. Remaining aware of these seasonal changes is essential for maintaining skin health 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 |
| Worland | 3 | 5 | 6 | 8 | 10 | 11 | 11 | 10 | 9 | 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 |