Custer, 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
Custer, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (31st August):
On this day, AQI across the 1 years varied significantly: 2026 ranks 1st highest AQI at 46 of Good air quality on the same day.
Day & Night AQI Trend: 31st Jul - 1st Aug 2026
Custer, Washington, United States
5 AM31st Jul 2026
9 PM
4 AM1st Aug 2026
151AQI
34AQI
132AQI
51AQI
In the last 24 hours,
Custer's AQI reached its highest point of 151 at 2 PM during the Day, while the lowest point, 34, was recorded at 6 PM during the Day between 31st Jul and 1st Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Custer, Washington, United States
17°C14/23°C
17°C12/22°C
18°C10/26°C
21°C12/31°C
20°C12/27°C
18°C14/25°C
19°C11/26°C
19°C13/26°C
18°C14/24°C
18°C14/25°C
19°C10/28°C
21°C12/31°C
22°C13/32°C
19°C14/27°C
18°C15/23°C
18°C12/26°C
19°C12/28°C
24°C13/37°C
26°C16/37°C
27°C17/38°C
24°C19/29°C
21°C14/29°C
19°C14/24°C
17°C15/21°C
19°C14/26°C
18°C14/23°C
18°C11/28°C
19°C12/27°C
22°C12/31°C
18°C14/22°C
51AQI
36AQI
47AQI
36AQI
2026 Days Vs Air Quality
Custer, Washington, United States
92%
193
8%
16
Total number of days with different AQI categories in last 213 days in 2026 (152 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2026, 92% of 213 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
Custer, Washington, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
48AQI (US)
43AQI (US)
15AQI (US)
16AQI (US)
18AQI (US)
11AQI (US)
14AQI (US)
17AQI (US)
17AQI (US)
15AQI (US)
18AQI (US)
14AQI (US)
16AQI (US)
19AQI (US)
20AQI (US)
17AQI (US)
31AQI (US)
42AQI (US)
40AQI (US)
40AQI (US)
29AQI (US)
33AQI (US)
37AQI (US)
34AQI (US)
26AQI (US)
26AQI (US)
20AQI (US)
20AQI (US)
47AQI (US)
44AQI (US)
45AQI (US)
51AQI (US)
41AQI (US)
44AQI (US)
29AQI (US)
29AQI (US)
28AQI (US)
25AQI (US)
33AQI (US)
27AQI (US)
31AQI (US)
25AQI (US)
20AQI (US)
29AQI (US)
37AQI (US)
31AQI (US)
36AQI (US)
39AQI (US)
32AQI (US)
32AQI (US)
28AQI (US)
25AQI (US)
30AQI (US)
32AQI (US)
31AQI (US)
36AQI (US)
34AQI (US)
20AQI (US)
20AQI (US)
26AQI (US)
30AQI (US)
26AQI (US)
39AQI (US)
36AQI (US)
36AQI (US)
43AQI (US)
42AQI (US)
37AQI (US)
32AQI (US)
41AQI (US)
42AQI (US)
36AQI (US)
26AQI (US)
34AQI (US)
34AQI (US)
36AQI (US)
32AQI (US)
32AQI (US)
40AQI (US)
38AQI (US)
33AQI (US)
18AQI (US)
30AQI (US)
28AQI (US)
33AQI (US)
24AQI (US)
19AQI (US)
26AQI (US)
27AQI (US)
21AQI (US)
31AQI (US)
35AQI (US)
23AQI (US)
29AQI (US)
22AQI (US)
22AQI (US)
21AQI (US)
19AQI (US)
21AQI (US)
22AQI (US)
25AQI (US)
18AQI (US)
34AQI (US)
37AQI (US)
34AQI (US)
23AQI (US)
21AQI (US)
15AQI (US)
15AQI (US)
17AQI (US)
19AQI (US)
18AQI (US)
17AQI (US)
19AQI (US)
19AQI (US)
16AQI (US)
17AQI (US)
22AQI (US)
22AQI (US)
19AQI (US)
23AQI (US)
25AQI (US)
25AQI (US)
16AQI (US)
14AQI (US)
20AQI (US)
29AQI (US)
21AQI (US)
23AQI (US)
16AQI (US)
26AQI (US)
40AQI (US)
51AQI (US)
54AQI (US)
56AQI (US)
55AQI (US)
42AQI (US)
38AQI (US)
37AQI (US)
37AQI (US)
39AQI (US)
41AQI (US)
22AQI (US)
12AQI (US)
13AQI (US)
13AQI (US)
12AQI (US)
14AQI (US)
20AQI (US)
14AQI (US)
15AQI (US)
23AQI (US)
23AQI (US)
23AQI (US)
23AQI (US)
17AQI (US)
24AQI (US)
27AQI (US)
18AQI (US)
22AQI (US)
13AQI (US)
13AQI (US)
19AQI (US)
15AQI (US)
14AQI (US)
16AQI (US)
14AQI (US)
14AQI (US)
18AQI (US)
17AQI (US)
19AQI (US)
18AQI (US)
18AQI (US)
26AQI (US)
29AQI (US)
27AQI (US)
21AQI (US)
16AQI (US)
15AQI (US)
12AQI (US)
28AQI (US)
23AQI (US)
15AQI (US)
20AQI (US)
15AQI (US)
25AQI (US)
18AQI (US)
19AQI (US)
29AQI (US)
27AQI (US)
15AQI (US)
12AQI (US)
17AQI (US)
16AQI (US)
41AQI (US)
35AQI (US)
36AQI (US)
51AQI (US)
59AQI (US)
70AQI (US)
61AQI (US)
55AQI (US)
70AQI (US)
92AQI (US)
83AQI (US)
61AQI (US)
44AQI (US)
67AQI (US)
89AQI (US)
27AQI (US)
31AQI (US)
32AQI (US)
23AQI (US)
29AQI (US)
19AQI (US)
39AQI (US)
No. of days
202629AQI (US)
Highest AQI (US) recorded in
July39AQI (US)
Lowest AQI (US) recorded in
June19AQI (US)
202529AQI (US)
Highest AQI (US) recorded in
September34AQI (US)
Lowest AQI (US) recorded in
March21AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Custer's annual 2026 AQI (US) (29) shows an average percentage change of 0% (No Change AQI (US)) compared to previous years: 2025 (29).