Cheney, Washington, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Cheney, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (17th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 41 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Oct - 18th Oct 2025
Cheney, Washington, United States
6 AM17th Oct 2025
6 PM
5 AM18th Oct 2025
44AQI
16AQI
55AQI
14AQI
In the last 24 hours,
Cheney's AQI reached its highest point of 55 at 11 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 17th Oct and 18th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Cheney, Washington, United States
22°C13/31°C
23°C14/31°C
22°C15/30°C
15°C9/21°C
13°C6/21°C
17°C9/27°C
20°C11/28°C
19°C11/27°C
13°C6/20°C
16°C8/26°C
20°C12/28°C
18°C12/26°C
14°C11/20°C
14°C10/20°C
12°C9/18°C
12°C6/18°C
12°C6/18°C
10°C4/17°C
10°C2/18°C
13°C4/22°C
15°C6/24°C
19°C13/27°C
16°C10/21°C
8°C7/9°C
6°C4/7°C
5°C2/9°C
5°C1/12°C
6°C0/13°C
6°C0/14°C
9°C5/15°C
--°C/°C
39AQI
32AQI
46AQI
32AQI
2025 Days Vs Air Quality
Cheney, Washington, United States
91%
264
9%
25
0.3%
1
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 291 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
Cheney, Washington, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI
23AQI
22AQI
18AQI
20AQI
21AQI
22AQI
22AQI
23AQI
25AQI
22AQI
21AQI
30AQI
26AQI
34AQI
29AQI
28AQI
31AQI
36AQI
28AQI
26AQI
38AQI
35AQI
37AQI
35AQI
35AQI
33AQI
38AQI
33AQI
32AQI
26AQI
16AQI
19AQI
21AQI
21AQI
21AQI
29AQI
24AQI
25AQI
34AQI
27AQI
28AQI
34AQI
26AQI
28AQI
29AQI
20AQI
26AQI
24AQI
22AQI
22AQI
22AQI
20AQI
18AQI
17AQI
20AQI
19AQI
19AQI
20AQI
25AQI
33AQI
25AQI
21AQI
17AQI
18AQI
17AQI
18AQI
19AQI
17AQI
17AQI
17AQI
15AQI
15AQI
14AQI
14AQI
15AQI
14AQI
15AQI
14AQI
15AQI
14AQI
14AQI
14AQI
19AQI
19AQI
17AQI
16AQI
14AQI
16AQI
16AQI
16AQI
17AQI
16AQI
17AQI
18AQI
19AQI
18AQI
14AQI
12AQI
16AQI
16AQI
16AQI
18AQI
23AQI
22AQI
22AQI
16AQI
17AQI
16AQI
17AQI
12AQI
13AQI
20AQI
27AQI
23AQI
29AQI
31AQI
20AQI
14AQI
16AQI
17AQI
20AQI
19AQI
13AQI
13AQI
19AQI
18AQI
14AQI
19AQI
22AQI
16AQI
14AQI
14AQI
15AQI
16AQI
14AQI
13AQI
13AQI
13AQI
12AQI
12AQI
15AQI
16AQI
18AQI
22AQI
19AQI
14AQI
17AQI
16AQI
14AQI
21AQI
17AQI
14AQI
16AQI
16AQI
20AQI
19AQI
19AQI
20AQI
23AQI
24AQI
37AQI
49AQI
24AQI
19AQI
20AQI
21AQI
23AQI
18AQI
17AQI
19AQI
14AQI
14AQI
23AQI
42AQI
34AQI
22AQI
16AQI
12AQI
15AQI
18AQI
21AQI
21AQI
21AQI
20AQI
23AQI
19AQI
21AQI
22AQI
19AQI
15AQI
24AQI
26AQI
21AQI
18AQI
19AQI
29AQI
35AQI
27AQI
28AQI
32AQI
24AQI
42AQI
34AQI
33AQI
22AQI
16AQI
22AQI
17AQI
19AQI
23AQI
33AQI
43AQI
51AQI
47AQI
31AQI
32AQI
32AQI
18AQI
16AQI
17AQI
20AQI
26AQI
27AQI
45AQI
48AQI
23AQI
14AQI
15AQI
22AQI
25AQI
26AQI
23AQI
35AQI
57AQI
51AQI
50AQI
54AQI
59AQI
58AQI
55AQI
55AQI
64AQI
66AQI
65AQI
74AQI
87AQI
86AQI
102AQI
64AQI
53AQI
53AQI
65AQI
56AQI
52AQI
59AQI
46AQI
26AQI
33AQI
42AQI
48AQI
35AQI
46AQI
34AQI
25AQI
41AQI
45AQI
50AQI
71AQI
73AQI
73AQI
59AQI
34AQI
17AQI
24AQI
33AQI
36AQI
16AQI
45AQI
36AQI
44AQI
43AQI
42AQI
30AQI
20AQI
20AQI
24AQI
35AQI
42AQI
41AQI
28AQI
23AQI
17AQI
18AQI
16AQI
22AQI
24AQI
37AQI
55AQI
32AQI
No. of days
202527AQI
Highest AQI recorded in
September55AQI
Lowest AQI recorded in
May16AQI
202422AQI
Highest AQI recorded in
August40AQI
Lowest AQI recorded in
March8AQI
202323AQI
Highest AQI recorded in
August55AQI
Lowest AQI recorded in
February10AQI
202221AQI
Highest AQI recorded in
September54AQI
Lowest AQI recorded in
March8AQI
202121AQI
Highest AQI recorded in
August52AQI
Lowest AQI recorded in
December9AQI
202026AQI
Highest AQI recorded in
September67AQI
Lowest AQI recorded in
December11AQI
Most & Least Polluted Years Over the Last 6 Years
Cheney's annual 2025 AQI (27) shows an average percentage change of 20.8% (worsened AQI) compared to previous years: 2020 (26), 2021 (21), 2022 (21), 2023 (23), 2024 (22).