Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Union, United States, where the climate can lead to varying levels of sun exposure throughout the year. Being aware of UV levels is essential for preventing sunburn and maintaining long-term skin health, as harmful rays can cause serious damage, especially during peak hours. With the highest UV Index peaking at 11 around midday, Union residents must take precautions to protect themselves when the sun is at its strongest. Stay informed about the UV Index to enjoy the beautiful weather safely!
At sunrise, the UV Index begins its ascent, peaking at 1 by 07:00. As the day progresses, it rises steadily, hitting 2 by 08:00 and reaching a moderate 3 by 09:00. The intensity ramps up significantly from 10:00, where it soars to 6, and then it continues its climb to a striking 10 at 12:00. The highest point arrives at 13:00 and 14:00, where the UV Index maxes out at 11, signaling a time when sun protection is crucial. As the afternoon wanes, the index gradually decreases, settling at 9 by 15:00. By late afternoon, the values dip to 4 at 17:00, and then cool down to 2 by 18:00, before fading to 1 by 19:00 as daylight fades. It's a clear reminder to stay protected during the sunniest hours!
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 | 10 | very high | 15 min |
13:00 | 11 | extreme | 10 min |
14:00 | 11 | extreme | 10 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, UV exposure levels vary significantly, with high-risk months typically occurring from March to August when the UV Index reaches its peak at 11, categorized as extreme. March and April also feature very high levels, making these months crucial for sun safety awareness. Visitors and residents should be particularly cautious during this period, applying sunscreen regularly, wearing protective clothing, and seeking shade during peak hours. In contrast, the months of January, November, and December present a moderate UV Index of 3 to 5, allowing for more relaxed precautions, though it's still important to remain mindful of sun exposure. Always check local UV forecasts and adjust your sun safety practices accordingly to protect your skin 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 |
Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
Union | 3 | 6 | 8 | 10 | 11 | 11 | 11 | 10 | 9 | 7 | 5 | 3 |
Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |