UV Index in Fort Knox, United States

Last updated: May 3, 2025

In Fort Knox, United States, staying aware of the UV Index is essential for maintaining skin health and preventing sunburns. Understanding UV levels helps residents and visitors protect themselves from harmful ultraviolet radiation, especially during the sun's peak hours. With a Cfa climate, Fort Knox experiences warm summers that can lead to elevated UV exposure risks. With peak UV Index values reaching 10, it’s crucial to monitor these levels and take appropriate precautions to enjoy the outdoors safely.

Hourly UV Index in Fort Knox

As the sun rises, the UV Index begins its gentle climb, starting at a modest 1 at 7:00 AM and 8:00 AM. By 9:00 AM, it nudges up to a 2, signaling the day is warming up. However, the intensity ramps up dramatically around 10:00 AM, peaking at 9 by 12:00 PM. The highest alert comes at 1:00 PM and 2:00 PM with a striking 10, indicating it’s time to seek shade and protect your skin. As the afternoon unfolds, the index recedes slowly, dropping to 5 by 5:00 PM and settling down to a safe 1 by 7:00 PM. Keep in mind, during peak hours, the sun's rays are most potent—stay safe and enjoy the sunshine wisely!

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
08:001low45 min
09:002low45 min
10:004moderate30 min
11:007high25 min
12:009very high15 min
13:0010very high15 min
14:0010very high15 min
15:009very high15 min
16:007high25 min
17:005moderate30 min
18:003moderate30 min
19:001low45 min

Monthly UV Index Trends in Fort Knox

The UV Index experiences significant seasonal variation, peaking in the summer months. High-risk months for UV exposure are from April to September, with the highest values occurring in June (UV Index 11) and July to September (UV Index ranging from 9 to 10). During these months, the burn time can be as little as 10 to 15 minutes, highlighting the need for precaution. Residents and visitors are advised to apply sunscreen, wear protective clothing, and seek shade during peak sunlight hours to minimize their risk of skin damage. As UV levels drop in October through March, with burn times extending to 25-30 minutes, the risk remains moderate but requires continued awareness.

Monthly Maximum UV Index for Fort Knox, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Fort Knox. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec35710101110108753
Data source: Statistical UV Index data for Fort Knox, 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 Fort Knox UV Index with Other United States Cities

The table above highlights how UV exposure in Fort Knox 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.
Fort Knox'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
Fort Knox35710101110109753
Los Angeles UVI46891011111010754
Houston UVI589111112121110975