UV Index in American Fork, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors of American Fork, United States, where the climate can lead to varying levels of sun exposure throughout the year. With significant UV radiation levels peaking around noon, reaching as high as 11, it’s vital to be aware of the risks to prevent sunburn and promote long-term skin health. By staying informed about UV levels, you can protect yourself and your loved ones from harmful effects, especially in this Dfb climate, known for its warm summers. Be proactive and equip yourself with the knowledge to enjoy the sun safely!

Hourly UV Index in American Fork

The UV Index reveals a dynamic daily pattern, starting from a low of 1 at 7:00 AM, and gradually climbing to a peak of 11 between 1:00 PM and 2:00 PM. As the sun reaches its zenith, 12:00 PM also sees a high of 10, signaling an urgent need for sun protection. After this peak, a downward trend persists, with readings dropping to 7 by 4:00 PM, and further declining to 1 by 7:00 PM. This data underscores the importance of remaining vigilant about UV exposure during the midday hours when the risk is greatest, highlighting the necessity of precautions like sunscreen and protective clothing.

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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	2	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	9	very high	15 min
16:00	7	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in American Fork

Throughout the year, the UV Index experiences significant fluctuations, impacting the safety of sun exposure for both residents and visitors. The high-risk months for UV exposure are from March to August, where the index consistently reaches very high to extreme levels, particularly peaking at 12 in June and July. During these months, the recommended burn time shrinks to just 10 minutes, highlighting the urgent need for protective measures. Conversely, the UV Index drops to moderate levels in January, November, and December, allowing for longer safe exposure times of 30 minutes. It is essential for individuals to stay informed and take necessary precautions, such as wearing sunscreen, protective clothing, and limiting exposure during the highest UV hours, particularly from March through August.

Monthly Maximum UV Index for American Fork, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in American Fork. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for American Fork, 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 American Fork UV Index with Other United States Cities

The table above highlights how UV exposure in American Fork 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.

American Fork's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chicago UVI	3	4	6	8	9	10	10	9	8	6	4	2
Brooklyn UVI	3	5	6	8	10	10	9	9	8	6	4	2
New York City UVI	3	5	6	8	10	10	9	9	8	6	4	2
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
American Fork	4	6	9	11	11	12	12	11	9	7	5	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5