UV Index in Valley, United States

Last updated: June 2, 2025

In Valley, United States, awareness of the UV Index is vital for ensuring your skin health while enjoying the outdoors. Understanding UV levels can help you prevent sunburn and long-term skin damage, making it essential for everyone, especially those who spend a lot of time outside. With a climate characterized by hot summers, Valley residents face significant UV exposure risks, especially during midday hours when the UV Index can soar to 11, indicating extreme levels. Stay informed and protect yourself from the sun’s harmful rays as you embrace all that this beautiful region has to offer!

Hourly UV Index in Valley

The UV Index throughout the day paints a vivid picture of the sun’s intensity. Starting at 07:00, the day begins with a gentle UVI of 1, perfect for early risers. As the sun climbs, by 09:00, it ramps up to 5, shifting gears towards midday. The intensity peaks at 12:00 and 13:00, hitting a formidable 11—a clear signal to protect your skin. The afternoon sun gradually mellows, dropping to 10 at 14:00, and then steadily decreases to 3 by 17:00. As twilight approaches, the UVI recedes to 1 by 18:00, marking a tranquil end to the day. Staying informed about these fluctuations can help ensure a safe and enjoyable experience in the sun!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:005moderate30 min
10:007high25 min
11:009very high15 min
12:0011extreme10 min
13:0011extreme10 min
14:0010very high15 min
15:007high25 min
16:005moderate30 min
17:003moderate30 min
18:001low45 min
19:001low45 min

Monthly UV Index Trends in Valley

As the seasons change, so does the UV Index, which significantly impacts exposure levels throughout the year. January starts with a moderate UV Index of 4, allowing for a burn time of 30 minutes. However, February ramps up to a high index of 7, with a reduced burn time of 25 minutes. The peak months, from March through August, experience extreme UV levels, particularly in May and June, where the UV Index reaches 11 and burn times shrink to just 10 minutes. September and October see a slight decrease, yet still maintain a very high index of 9 and 8, respectively. The year concludes with lower levels in November and December. Visitors and residents should take special care during the high-risk months from March to August, ensuring proper sun protection measures, such as wearing sunscreen, hats, and protective clothing, to mitigate the risk of UV-related harm.

Monthly Maximum UV Index for Valley, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Valley. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Statistical UV Index data for Valley, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Valley UV Index with Other United States Cities

The table above highlights how UV exposure in Valley compares to other major locations across United States. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Valley's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Valley47810111111119864
Houston UVI589111112121110975