UV Index in Harrison, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Harrison, United States, where the semi-arid BSk climate can lead to unexpectedly high UV exposure, especially during the sun's peak hours. With UV levels reaching up to 11 between noon and 1 PM, awareness is key to preventing sunburn and protecting skin health. By staying informed about daily UV Index readings, residents can take proactive measures to enjoy the outdoors safely while minimizing the risks associated with increased ultraviolet radiation. Whether it’s applying sunscreen or scheduling outdoor activities wisely, knowing the UV Index is essential for maintaining a healthy lifestyle in Harrison.

Hourly UV Index in Harrison

The UV Index today showcases a steady climb as the sun rises, starting with a mild 1 at 07:00. By 10:00, it ramps up to 7, signaling a more intense sun exposure. The peak arrives at 12:00 and 13:00, with a striking 11, indicating a high risk of harm from unprotected sun exposure. As the afternoon wanes, the index gradually declines to 8 at 15:00 and further down to 2 by 18:00, creating a safer environment for evening activities. Overall, the day's UV pattern emphasizes the importance of sun protection during the midday hours, while reassuring a more manageable level of UV exposure later in the day.

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
09:004moderate30 min
10:007high25 min
11:009very high15 min
12:0011extreme10 min
13:0011extreme10 min
14:0010very high15 min
15:008very high15 min
16:006high25 min
17:004moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Harrison

Throughout the year, UV Index values fluctuate significantly, with the highest risk occurring during the summer months of June, July, and August, where the index reaches extreme levels of 11, resulting in a burn time of just 10 minutes. As we transition into spring, April and May see a very high rating of 10, necessitating similar precautions. Additionally, March marks an increase to a high index of 6, while the winter months of January, February, November, and December exhibit moderate levels of 3 to 5, where burn times are generally longer at 30 minutes. To ensure safety, visitors and residents should take precautions, such as wearing sunscreen, hats, and protective clothing, especially during the high-risk months of April through September, when UV exposure is at its peak.

Monthly Maximum UV Index for Harrison, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Harrison. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec35610101111108643
Data source: Statistical UV Index data for Harrison, 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 Harrison UV Index with Other United States Cities

The table above highlights how UV exposure in Harrison 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.
Harrison'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
Harrison35610101111108643
Los Angeles UVI46891011111010754
Houston UVI589111112121110975