Pomeroy, Washington, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Pomeroy, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (5th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 26 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Pomeroy, Washington, United States
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
26AQI
21AQI
26AQI
24AQI
In the last 24 hours,
Pomeroy's AQI reached its highest point of 26 at 8 AM during the Day, while the lowest point, 21, was recorded at 4 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Pomeroy, Washington, United States
--°C/°C
25°C18/32°C
28°C20/36°C
25°C19/31°C
22°C17/28°C
23°C14/30°C
26°C18/33°C
28°C21/35°C
27°C21/33°C
21°C14/27°C
21°C13/28°C
25°C18/32°C
26°C18/33°C
22°C16/28°C
21°C15/26°C
18°C15/23°C
20°C14/27°C
24°C16/31°C
26°C19/32°C
24°C17/31°C
22°C15/29°C
23°C14/30°C
25°C18/32°C
27°C19/35°C
29°C21/35°C
27°C21/34°C
23°C19/28°C
24°C18/31°C
23°C16/30°C
20°C14/26°C
21°C13/29°C
25AQI
25AQI
25AQI
24AQI
2025 Days Vs Air Quality
Pomeroy, Washington, United States
100%
133
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 218 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Pomeroy, Washington, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
21AQI
17AQI
17AQI
15AQI
18AQI
16AQI
17AQI
23AQI
16AQI
20AQI
20AQI
19AQI
20AQI
13AQI
13AQI
16AQI
15AQI
17AQI
18AQI
22AQI
26AQI
23AQI
17AQI
19AQI
19AQI
19AQI
13AQI
16AQI
17AQI
28AQI
24AQI
26AQI
30AQI
20AQI
15AQI
17AQI
18AQI
24AQI
17AQI
13AQI
13AQI
15AQI
17AQI
15AQI
18AQI
19AQI
16AQI
14AQI
13AQI
15AQI
17AQI
13AQI
13AQI
13AQI
13AQI
12AQI
12AQI
16AQI
17AQI
18AQI
21AQI
19AQI
14AQI
16AQI
16AQI
14AQI
20AQI
17AQI
13AQI
15AQI
17AQI
19AQI
19AQI
19AQI
20AQI
24AQI
26AQI
26AQI
33AQI
25AQI
19AQI
20AQI
21AQI
22AQI
18AQI
18AQI
18AQI
18AQI
17AQI
21AQI
35AQI
35AQI
19AQI
14AQI
13AQI
15AQI
17AQI
21AQI
26AQI
22AQI
18AQI
26AQI
20AQI
20AQI
21AQI
20AQI
15AQI
18AQI
20AQI
19AQI
20AQI
19AQI
26AQI
36AQI
28AQI
30AQI
32AQI
24AQI
25AQI
28AQI
28AQI
21AQI
16AQI
16AQI
18AQI
21AQI
22AQI
29AQI
36AQI
42AQI
40AQI
26AQI
26AQI
17AQI
19AQI
16AQI
20AQI
23AQI
34AQI
No. of days
202520AQI
Highest AQI recorded in
August34AQI
Lowest AQI recorded in
May16AQI
Most & Least Polluted Years Over the Last 1 Years
Pomeroy's annual 2025 AQI (20) shows an average percentage change of NaN% (improved AQI) compared to previous years: .