UV Index in Hayden, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Hayden, United States, where the Dfc climate brings unique challenges for sun exposure. With UV levels peaking at 13 during the day, awareness of these levels is essential for preventing sunburn and maintaining skin health. As the sun's rays become increasingly intense, especially from 10 AM to 2 PM, it's vital to stay informed about UV risks to ensure you and your family enjoy the outdoors safely while protecting your skin from harmful effects.

Hourly UV Index in Hayden

Throughout the day, the UV Index experiences a dynamic shift, peaking at an impressive 13 between 1 PM and 2 PM, indicating a high risk of harm from unprotected sun exposure. The morning starts gently, with a UV Index of 1 at 7 AM, gradually rising to 4 by 9 AM. As the sun inches higher, the intensity increases sharply, reaching 10 by 11 AM and soaring to 12 by noon. Post-peak, the index begins to decline, dropping to 10 at 3 PM, before settling back to a mild 2 by 6 PM. This clear progression emphasizes the importance of sun protection during the midday hours when the UV Index is at its highest. Enjoy the sunshine, but remember to stay safe! ☀️

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	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	10	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 Hayden

As the seasons change, so do the UV index levels, indicating varying sun exposure risks throughout the year. The months of March through August present the highest risk, with UV Index values reaching extreme levels (11-13), where even minimal sun exposure can lead to skin damage in as little as 10 minutes. Notably, April and May are particularly concerning, featuring a maximum UV Index of 12. Visitors and residents should take extra precautions during these high-risk months, such as seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen liberally. Conversely, during the winter months of December and January, the UV Index drops to a more moderate range (3-4), allowing for relatively safer outdoor activities, though caution is still advised. Always stay informed and protect your skin from harmful UV rays year-round.

Monthly Maximum UV Index for Hayden, United States

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

The table above highlights how UV exposure in Hayden 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.

Hayden'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
Hayden	4	6	9	11	12	13	12	11	10	7	5	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5