Last updated: May 3, 2025
In Fergus Falls, United States, being aware of the UV Index is crucial for maintaining skin health and preventing painful sunburns. With the city nestled in a humid continental climate (Dfb), residents often experience varying UV exposure risk throughout the year. Understanding the daily UV levels is essential, particularly during peak hours when the index can reach as high as 9 around noon. By staying informed about the UV Index, you can better protect yourself and your loved ones from the harmful effects of excessive sun exposure, ensuring fun and safe outdoor activities under the Minnesota sun.
As the sun rises, the UV Index starts at a gentle 1 at 07:00, perfect for those early morning strolls. By 08:00, it nudges up to 2, signaling a gradual increase in sun intensity. The UV rays become more prominent by 09:00, reaching a 3, and then escalate significantly as the day progresses. At 10:00, the index spikes to 5, and by 11:00 it reaches 6, indicating a real need for sun protection. The peak occurs at 12:00, where the UV Index hits a striking 8, followed closely by a 9 at 13:00, marking the most intense sun exposure. As the afternoon rolls in, from 14:00 onwards, the UV levels start to wane, settling at 8 and gradually decreasing to 7 by 15:00. The evening approaches with a decrescendo; the index drops to 5 at 16:00, tailing off to 4 by 17:00, and finally winding down to 1 by 19:00. Throughout the day, awareness and protection make all the difference in enjoying the outdoors safely!
| 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 | 5 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, the UV Index experiences notable fluctuations, influencing both visitor and resident safety. January and December boast a low UV Index of 2, allowing for extended exposure times of 45 minutes without significant risk. However, as we move into spring with February and March, the UV Index rises to 4 and 5 respectively, indicating a moderate risk with a burn time of just 30 minutes. The high-risk months arrive in April through August, with peak values of 9 and 10 during May and June, categorizing the exposure as very high and shortening safe sun exposure to as little as 15 minutes. September sees a slight decrease to a high index of 7, while October and November return to moderate levels. Visitors and residents should take precautionary measures during the higher UV months by seeking shade, wearing protective clothing, and using sunscreen regularly to minimize skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fergus Falls | 2 | 4 | 5 | 7 | 9 | 10 | 9 | 8 | 7 | 5 | 3 | 2 |
| 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 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |