UV Index in Mill Plain, United States

Last updated: May 3, 2025

In Mill Plain, United States, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps you anticipate and mitigate risks of sunburn and long-term skin damage. With a Csb climate that features warm, sunny days, Mill Plain residents must be mindful of peak UV exposure times—especially in the hours around midday when the index can reach a high of 9. Equip yourself with knowledge to enjoy the outdoors safely, ensuring that your summer activities remain enjoyable and sunburn-free!

Hourly UV Index in Mill Plain

The UV Index for the day showcases a notable rise in intensity as the sun climbs higher in the sky. Starting at a low of 1 at 7:00 AM, the index gradually increases to a moderate level of 3 by 9:00 AM. However, from 10:00 AM onward, things heat up significantly, peaking at a scorching 9 from noon to 2:00 PM. As the afternoon progresses, the UV Index gradually dips back to a friendly 3 by 5:00 PM, then descends further to 1 by the time evening sets in. This pattern underscores the importance of sun protection during peak hours, especially between 11:00 AM and 2:00 PM, when UV levels are at their highest.

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	7	high	25 min
12:00	9	very high	15 min
13:00	9	very high	15 min
14:00	9	very high	15 min
15:00	7	high	25 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Mill Plain

Throughout the year, UV index levels exhibit notable seasonal changes, peaking during the summer months. January and December are typically low-risk months with a UV index of 2, allowing for extended exposure times of 45 minutes. As spring approaches, the UV index rises, particularly in April which sees a high exposure category and a burn time of 25 minutes. The high-risk months of May, June, July, and August have very high UV index levels ranging from 8 to 10, necessitating caution as burn times drop to just 15 minutes. In the fall, the UV levels gradually decrease, with September still posing a high risk but allowing for longer burn times of 25 minutes. Visitors and residents are advised to take appropriate measures to protect their skin, especially during the summer, by wearing sunscreen, hats, and sunglasses, and seeking shade during peak hours to minimize UV exposure.

Monthly Maximum UV Index for Mill Plain, United States

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

The table above highlights how UV exposure in Mill Plain 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.

Mill Plain'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
Mill Plain	2	3	5	6	9	9	10	8	7	5	3	2
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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5