UV Index in Stephenson, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Stephenson, United States, as it serves as a vital indicator of sun exposure risk throughout the day. With a climate characterized by cold winters and warm summers, awareness of UV levels can play a significant role in preventing sunburn and protecting overall skin health. During peak hours, especially around midday when the UV Index reaches highs of 8, it's essential to take precautions, as this signifies a notably elevated risk for harmful effects from unprotected sun exposure. By staying informed on the UV Index, you can enjoy the sunny days in Stephenson while safeguarding your skin from the risks associated with excessive UV rays.

Hourly UV Index in Stephenson

As the sun rises, the UV Index gradually climbs, starting at a mild 1 at 07:00. By 09:00, it reaches 4, signaling the beginning of a more significant UV exposure. The real intensity begins at 10:00, peaking at 8 between 12:00 and 14:00, ensuring that midday sun-seekers are well advised to apply sunscreen and seek shade. The afternoon sees a slight decline, with the index dropping back to 6 at 15:00 and continuing its descent to 3 by 17:00. As evening approaches, the UV Index returns to a safe 1 by 18:00, bringing an end to the day's sun exposure. Remember, during those peak hours, protection is key!

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
10:006high25 min
11:007high25 min
12:008very high15 min
13:008very high15 min
14:008very high15 min
15:006high25 min
16:004moderate30 min
17:003moderate30 min
18:001low45 min
19:001low45 min

Monthly UV Index Trends in Stephenson

Throughout the year, the UV Index experiences notable seasonal changes, with significant increases from late winter into summer. January sees a low UV Index of 2, indicating minimal risk, while February and March rise to 4 and 5, respectively, where exposure becomes moderate. April marks the onset of high-risk periods with a UV Index of 7, peaking in May and June at 8 and 9, categorized as very high. This trend continues into July and August, where protective measures are essential due to the same high values of 9 and 8. By September, the UV Index decreases to 7, signaling a return to high risk but gradually moderating through October (5) and November (3) before dropping back to low levels in December. Visitors and residents are strongly advised to prioritize sun protection during the months of May through September, when the potential for skin damage is greatest, using protective clothing, sunscreen, and seeking shade during peak hours.

Monthly Maximum UV Index for Stephenson, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Stephenson. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec245789987532
Data source: Statistical UV Index data for Stephenson, 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 Stephenson UV Index with Other United States Cities

The table above highlights how UV exposure in Stephenson 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.
Stephenson's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Stephenson245789987532
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Houston UVI589111112121110975