UV Index in Holladay, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Holladay, United States, where the climate's Dfb classification brings a mix of warm summers and cold winters. With UV levels often peaking around midday and reaching a high of 11, awareness of these readings is vital for sunburn prevention and overall skin health. By knowing the UV Index, you can take proactive measures to shield yourself from harmful ultraviolet rays, particularly during the summer months when exposure risks are elevated. Stay informed and protect your skin—your future self will thank you!

Hourly UV Index in Holladay

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 Holladay

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 Holladay, United States

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

The table above highlights how UV exposure in Holladay 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.

Holladay'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
Holladay	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