UV Index in Rule, United States

Last updated: July 2, 2025

Understanding the UV Index in Rule, United States, is crucial for promoting skin health and preventing sunburn. As residents enjoy this vibrant region, being aware of the UV levels can help protect against harmful effects from sun exposure. With a climate zone classified as Cfa, Rule experiences substantial UV radiation, especially during midday hours when the UV Index peaks at 12. By staying informed about these UV levels, you can make safer choices for outdoor activities, ensuring that your skin remains healthy all year round.

Hourly UV Index in Rule

The hourly UV Index reveals an intense progression of sun exposure throughout the day, reaching its peak at 2 PM with a striking level of 12. Starting from a minimal 1 at 7 AM and 8 AM, the index gradually rises, hitting 4 by 10 AM and soaring to 7 at 11 AM. By noon, the UV Index spikes to 10, urging caution for sun-seekers. The afternoon brings the highest risk, with 11 at 1 PM and a blazing 12 at 2 PM, before it begins to decline. Fortunately, from 3 PM onwards, the UV levels decrease to 10, then to 8 at 4 PM, 5 at 5 PM, and tapering down to 1 by 7 PM, signaling a safe reprieve from the sun's intensity. Stay vigilant during the midday hours to protect your skin!

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
12:0010very high15 min
13:0011extreme10 min
14:0012extreme10 min
15:0010very high15 min
16:008very high15 min
17:005moderate30 min
18:003moderate30 min
19:001low45 min

Monthly UV Index Trends in Rule

Throughout the year, seasonal variations in UV index indicate fluctuating levels of sun exposure risk. Notably, high-risk months occur from March to August, where the UV index reaches extreme levels (11-12), particularly during May and July. In these months, the burn time is alarmingly short at just 10 minutes, highlighting the urgent need for sun protection. Visitors and residents are advised to take precautionary measures during this peak period, such as seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen regularly. As the year progresses toward winter, UV levels decrease significantly, and by December, the exposure category reverts to moderate, allowing more comfortable outdoor activity for longer durations. It is essential to stay informed and safeguard against sun damage year-round.

Monthly Maximum UV Index for Rule, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Rule. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec479101111121110864
Data source: Statistical UV Index data for Rule, 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 Rule UV Index with Other United States Cities

The table above highlights how UV exposure in Rule 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.
Rule'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
Rule479101111121110864
Houston UVI589111112121110975