UV Index in Pullman, United States

Last updated: May 3, 2025

In Pullman, United States, understanding the UV Index is essential for maintaining optimal skin health and preventing sunburn. With the Csb climate typical of this region, residents and visitors face varying UV exposure risks throughout the year. During peak hours, particularly between 10 AM and 2 PM, UV levels can soar to a high of 9, making it crucial to stay informed. By keeping an eye on the UV Index, you can take informed measures to protect your skin and enjoy the beautiful Pullman outdoors safely.

Hourly UV Index in Pullman

The UV Index for today presents an intriguing journey through the hours. It starts off gently at 1 at 07:00, but as the morning progresses, it climbs swiftly to 2 by 08:00 and reaches a moderate 4 at 09:00. The sun intensifies its rays further, peaking at a robust 9 between 12:00 and 13:00—a reminder to take precautions against harmful UV exposure. Following this peak, the index gradually descends, dipping to 6 at 15:00, and mellowing down to 1 by 18:00. This pattern highlights the importance of seeking shade or applying sunscreen during the midday hours when UV radiation is most potent.

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	6	high	25 min
11:00	8	very high	15 min
12:00	9	very high	15 min
13:00	9	very high	15 min
14:00	8	very high	15 min
15:00	6	high	25 min
16:00	4	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Pullman

Throughout the year, UV Index values exhibit significant seasonal variations, reflecting changes in sun exposure risk. January and December showcase the lowest UV levels (Index 2), categorized as low, with longer burn times of 45 minutes. As the year progresses, UV levels rise sharply; April sees a high index of 7, while May and June peak at 9, indicating a very high risk with an alarming burn time of just 15 minutes. The highest risk month is July, with a peak UV index of 10. As summer wanes, UV levels gradually decrease, with September reverting to a high risk of 7 and returning to a moderate index in October and November. Visitors and residents should be particularly vigilant from April to August, applying sunscreen frequently and seeking shade during peak sun hours to minimize the risk of skin damage.

Monthly Maximum UV Index for Pullman, United States

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

The table above highlights how UV exposure in Pullman 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.

Pullman'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
Pullman	2	4	5	7	9	9	10	9	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