Selah, 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
Selah, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 27 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Selah, Washington, United States
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
32AQI
25AQI
42AQI
26AQI
In the last 24 hours,
Selah's AQI reached its highest point of 42 at 2 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Selah, Washington, United States
19°C13/27°C
22°C15/29°C
24°C17/32°C
19°C13/27°C
17°C11/24°C
21°C13/29°C
23°C16/30°C
25°C19/33°C
22°C14/30°C
19°C12/27°C
20°C13/28°C
22°C16/28°C
22°C14/29°C
18°C11/25°C
17°C11/23°C
17°C13/23°C
18°C12/25°C
21°C15/28°C
22°C15/30°C
19°C12/28°C
18°C11/26°C
18°C10/27°C
21°C13/29°C
24°C16/32°C
25°C20/33°C
23°C18/28°C
22°C17/29°C
21°C15/28°C
19°C13/26°C
17°C11/24°C
--°C/°C
23AQI
23AQI
24AQI
21AQI
2025 Days Vs Air Quality
Selah, Washington, United States
100%
214
0.4%
1
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 217 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
Selah, Washington, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
26AQI
24AQI
20AQI
22AQI
20AQI
32AQI
24AQI
20AQI
20AQI
19AQI
25AQI
26AQI
30AQI
40AQI
24AQI
21AQI
24AQI
25AQI
23AQI
25AQI
26AQI
27AQI
25AQI
22AQI
22AQI
26AQI
29AQI
37AQI
47AQI
75AQI
20AQI
18AQI
21AQI
22AQI
24AQI
27AQI
22AQI
21AQI
27AQI
23AQI
23AQI
25AQI
23AQI
20AQI
23AQI
32AQI
34AQI
24AQI
25AQI
22AQI
22AQI
33AQI
21AQI
20AQI
19AQI
21AQI
20AQI
21AQI
24AQI
22AQI
19AQI
19AQI
18AQI
17AQI
17AQI
17AQI
19AQI
17AQI
17AQI
18AQI
16AQI
16AQI
14AQI
13AQI
14AQI
13AQI
17AQI
14AQI
14AQI
14AQI
14AQI
14AQI
19AQI
20AQI
16AQI
16AQI
14AQI
16AQI
16AQI
17AQI
17AQI
17AQI
17AQI
17AQI
20AQI
20AQI
12AQI
11AQI
16AQI
13AQI
15AQI
16AQI
19AQI
16AQI
18AQI
14AQI
15AQI
15AQI
12AQI
12AQI
13AQI
13AQI
20AQI
21AQI
24AQI
22AQI
16AQI
11AQI
12AQI
15AQI
17AQI
15AQI
13AQI
14AQI
22AQI
22AQI
15AQI
14AQI
16AQI
14AQI
16AQI
15AQI
15AQI
15AQI
12AQI
14AQI
12AQI
13AQI
12AQI
13AQI
13AQI
13AQI
16AQI
17AQI
16AQI
15AQI
16AQI
15AQI
14AQI
17AQI
14AQI
15AQI
15AQI
16AQI
17AQI
17AQI
17AQI
20AQI
28AQI
23AQI
29AQI
31AQI
20AQI
20AQI
18AQI
21AQI
21AQI
18AQI
17AQI
17AQI
34AQI
37AQI
24AQI
44AQI
36AQI
19AQI
17AQI
14AQI
15AQI
19AQI
20AQI
17AQI
17AQI
18AQI
22AQI
18AQI
20AQI
21AQI
18AQI
16AQI
18AQI
20AQI
20AQI
22AQI
20AQI
25AQI
29AQI
29AQI
22AQI
20AQI
27AQI
24AQI
26AQI
30AQI
19AQI
16AQI
16AQI
21AQI
19AQI
20AQI
27AQI
40AQI
29AQI
27AQI
27AQI
23AQI
17AQI
16AQI
15AQI
22AQI
21AQI
32AQI
No. of days
202520AQI
Highest AQI recorded in
August32AQI
Lowest AQI recorded in
May15AQI
202414AQI
Highest AQI recorded in
August33AQI
Lowest AQI recorded in
May2AQI
202318AQI
Highest AQI recorded in
August44AQI
Lowest AQI recorded in
April3AQI
20221AQI
Highest AQI recorded in
January1AQI
Lowest AQI recorded in
August1AQI
20213AQI
Highest AQI recorded in
January21AQI
Lowest AQI recorded in
March0AQI
202036AQI
Highest AQI recorded in
September74AQI
Lowest AQI recorded in
November10AQI
Most & Least Polluted Years Over the Last 6 Years
Selah's annual 2025 AQI (20) shows an average percentage change of 525.4% (worsened AQI) compared to previous years: 2020 (36), 2021 (3), 2022 (1), 2023 (18), 2024 (14).