Dexter Se, Pullman, 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
Dexter Se, Pullman, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 58 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Dexter Se, Pullman, Washington, United States
6 AM4th Oct 2025
6 PM
5 AM5th Oct 2025
62AQI
39AQI
57AQI
52AQI
In the last 24 hours,
Dexter Se's AQI reached its highest point of 62 at 1 PM during the Day, while the lowest point, 39, was recorded at 11 AM during the Day between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Dexter Se, Pullman, Washington, United States
26°C17/35°C
23°C17/36°C
23°C16/32°C
22°C14/31°C
22°C16/30°C
21°C13/29°C
21°C15/29°C
18°C14/26°C
21°C13/29°C
15°C13/17°C
14°C10/18°C
19°C9/28°C
22°C14/31°C
22°C14/31°C
23°C15/32°C
23°C16/31°C
16°C11/22°C
13°C6/22°C
16°C7/28°C
20°C11/30°C
19°C11/27°C
14°C7/21°C
16°C8/28°C
19°C11/29°C
18°C11/28°C
15°C11/21°C
14°C9/21°C
12°C8/19°C
12°C7/19°C
12°C6/19°C
--°C/°C
47AQI
47AQI
50AQI
48AQI
2025 Days Vs Air Quality
Dexter Se, Pullman, Washington, United States
91%
251
9%
26
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 278 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
Dexter Se, Pullman, Washington, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
21AQI
21AQI
19AQI
18AQI
19AQI
20AQI
20AQI
21AQI
20AQI
21AQI
19AQI
19AQI
23AQI
21AQI
21AQI
21AQI
25AQI
25AQI
27AQI
23AQI
24AQI
33AQI
26AQI
36AQI
31AQI
30AQI
29AQI
31AQI
29AQI
26AQI
26AQI
17AQI
19AQI
20AQI
22AQI
22AQI
27AQI
24AQI
22AQI
26AQI
25AQI
27AQI
30AQI
21AQI
25AQI
25AQI
20AQI
24AQI
25AQI
21AQI
22AQI
20AQI
20AQI
19AQI
18AQI
19AQI
19AQI
20AQI
20AQI
21AQI
24AQI
20AQI
20AQI
17AQI
18AQI
20AQI
19AQI
19AQI
17AQI
17AQI
17AQI
16AQI
15AQI
14AQI
14AQI
14AQI
14AQI
16AQI
14AQI
14AQI
15AQI
14AQI
14AQI
19AQI
19AQI
18AQI
16AQI
14AQI
17AQI
16AQI
16AQI
18AQI
16AQI
18AQI
18AQI
20AQI
19AQI
14AQI
13AQI
19AQI
16AQI
18AQI
17AQI
22AQI
24AQI
23AQI
16AQI
18AQI
19AQI
19AQI
13AQI
14AQI
18AQI
26AQI
21AQI
27AQI
31AQI
19AQI
14AQI
16AQI
18AQI
23AQI
18AQI
14AQI
14AQI
14AQI
16AQI
15AQI
19AQI
23AQI
15AQI
14AQI
14AQI
14AQI
16AQI
13AQI
13AQI
13AQI
13AQI
12AQI
12AQI
15AQI
17AQI
20AQI
20AQI
19AQI
14AQI
16AQI
17AQI
13AQI
19AQI
17AQI
13AQI
15AQI
16AQI
21AQI
21AQI
21AQI
22AQI
26AQI
28AQI
26AQI
32AQI
24AQI
19AQI
21AQI
22AQI
22AQI
18AQI
18AQI
18AQI
15AQI
14AQI
21AQI
37AQI
35AQI
21AQI
15AQI
13AQI
16AQI
18AQI
23AQI
24AQI
22AQI
19AQI
32AQI
20AQI
21AQI
22AQI
20AQI
17AQI
19AQI
22AQI
20AQI
20AQI
23AQI
30AQI
33AQI
31AQI
28AQI
30AQI
23AQI
29AQI
34AQI
35AQI
23AQI
19AQI
20AQI
21AQI
23AQI
26AQI
35AQI
41AQI
48AQI
43AQI
37AQI
28AQI
33AQI
23AQI
18AQI
22AQI
26AQI
25AQI
28AQI
38AQI
42AQI
26AQI
19AQI
16AQI
23AQI
26AQI
28AQI
26AQI
43AQI
61AQI
60AQI
56AQI
54AQI
60AQI
60AQI
55AQI
55AQI
61AQI
57AQI
62AQI
62AQI
62AQI
85AQI
92AQI
56AQI
53AQI
52AQI
59AQI
50AQI
43AQI
58AQI
45AQI
26AQI
32AQI
36AQI
39AQI
37AQI
50AQI
42AQI
32AQI
48AQI
41AQI
37AQI
54AQI
58AQI
53AQI
53AQI
31AQI
25AQI
36AQI
54AQI
58AQI
24AQI
22AQI
17AQI
19AQI
16AQI
21AQI
25AQI
38AQI
50AQI
43AQI
No. of days
202526AQI
Highest AQI recorded in
September50AQI
Lowest AQI recorded in
May16AQI
202420AQI
Highest AQI recorded in
August37AQI
Lowest AQI recorded in
May9AQI
202320AQI
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
April11AQI
202220AQI
Highest AQI recorded in
September57AQI
Lowest AQI recorded in
May10AQI
202121AQI
Highest AQI recorded in
August64AQI
Lowest AQI recorded in
May8AQI
202019AQI
Highest AQI recorded in
September59AQI
Lowest AQI recorded in
May7AQI
Most & Least Polluted Years Over the Last 6 Years
Dexter Se's annual 2025 AQI (26) shows an average percentage change of 27.9% (worsened AQI) compared to previous years: 2020 (19), 2021 (21), 2022 (20), 2023 (20), 2024 (20).