UV Index in Park City, United States

Last updated: May 3, 2025

In Park City, United States, staying mindful of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps to prevent sunburn and long-term skin damage, especially at high altitudes where UV radiation is more intense. With a climate characterized by cold winters and mild summers, Park City residents and visitors often forget that during warmer months, the UV Index can soar, reaching peaks of 11 around midday. By being aware of these levels, you can enjoy the beautiful outdoors while safeguarding your skin against harmful rays.

Hourly UV Index in Park City

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 Park City

Throughout the year, UV levels vary significantly, with the highest indexes observed from April to August. During these months, the UV Index reaches extreme levels of 11 to 12, resulting in a critical burn time of just 10 minutes. March and September follow closely with very high levels, where individuals are at risk for skin damage in as little as 15 minutes. January and December offer more moderate exposure with indexes of 3 to 4, allowing for burn times of 30 minutes. Visitors and residents are strongly advised to take precautions from March through September, using sunscreen, wearing protective clothing, and seeking shade during peak hours, typically between 10 a.m. and 4 p.m. to minimize UV-related health risks.

Monthly Maximum UV Index for Park City, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Park City. 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 Park City, 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 Park City UV Index with Other United States Cities

The table above highlights how UV exposure in Park City 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.

Park City'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
Park City	4	6	8	11	11	12	12	11	9	6	5	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5