South 12th Avenue, Walla Walla, 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
South 12th Avenue, Walla Walla, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (16th October ):
On this day, AQI across the 1 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: 16th Oct - 17th Oct 2025
South 12th Avenue, Walla Walla, Washington, United States
6 AM16th Oct 2025
6 PM
5 AM17th Oct 2025
48AQI
28AQI
47AQI
24AQI
In the last 24 hours,
South 12th Avenue's AQI reached its highest point of 48 at 9 AM during the Day, while the lowest point, 24, was recorded at 5 AM during the Night between 16th Oct and 17th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
South 12th Avenue, Walla Walla, Washington, United States
23°C15/31°C
23°C16/30°C
24°C17/31°C
24°C18/32°C
19°C11/24°C
16°C10/25°C
17°C9/27°C
21°C12/32°C
22°C15/30°C
17°C11/25°C
19°C12/28°C
20°C13/29°C
21°C15/29°C
18°C12/26°C
18°C14/25°C
15°C11/21°C
14°C9/22°C
15°C11/21°C
14°C8/20°C
13°C6/22°C
15°C6/25°C
18°C12/27°C
17°C11/26°C
16°C10/24°C
12°C10/17°C
10°C8/12°C
9°C6/12°C
6°C1/13°C
7°C1/14°C
11°C5/18°C
--°C/°C
41AQI
33AQI
46AQI
34AQI
2025 Days Vs Air Quality
South 12th Avenue, Walla Walla, Washington, United States
87%
179
13%
26
Total number of days with different AQI categories in last 290 days in 2025 (75 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 290 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
South 12th Avenue, Walla Walla, Washington, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
19AQI
19AQI
18AQI
22AQI
17AQI
20AQI
17AQI
16AQI
28AQI
31AQI
29AQI
25AQI
14AQI
13AQI
18AQI
16AQI
17AQI
18AQI
22AQI
26AQI
24AQI
17AQI
20AQI
17AQI
20AQI
13AQI
13AQI
18AQI
26AQI
30AQI
32AQI
34AQI
19AQI
15AQI
18AQI
21AQI
23AQI
16AQI
16AQI
14AQI
17AQI
18AQI
17AQI
22AQI
23AQI
17AQI
16AQI
19AQI
19AQI
18AQI
13AQI
13AQI
12AQI
13AQI
11AQI
13AQI
21AQI
18AQI
21AQI
24AQI
19AQI
16AQI
18AQI
17AQI
15AQI
21AQI
15AQI
14AQI
16AQI
18AQI
19AQI
21AQI
22AQI
29AQI
30AQI
30AQI
29AQI
37AQI
28AQI
19AQI
22AQI
24AQI
24AQI
17AQI
16AQI
18AQI
12AQI
13AQI
20AQI
35AQI
35AQI
21AQI
15AQI
14AQI
15AQI
18AQI
22AQI
24AQI
19AQI
18AQI
28AQI
21AQI
23AQI
23AQI
20AQI
16AQI
19AQI
21AQI
23AQI
21AQI
21AQI
29AQI
37AQI
31AQI
35AQI
39AQI
44AQI
35AQI
29AQI
29AQI
20AQI
17AQI
16AQI
18AQI
21AQI
27AQI
32AQI
44AQI
51AQI
32AQI
24AQI
35AQI
26AQI
17AQI
18AQI
19AQI
24AQI
26AQI
28AQI
30AQI
23AQI
25AQI
13AQI
16AQI
20AQI
22AQI
20AQI
20AQI
26AQI
49AQI
58AQI
55AQI
56AQI
59AQI
60AQI
56AQI
55AQI
55AQI
55AQI
57AQI
61AQI
61AQI
80AQI
91AQI
62AQI
45AQI
37AQI
48AQI
55AQI
51AQI
54AQI
39AQI
23AQI
33AQI
40AQI
33AQI
43AQI
53AQI
36AQI
27AQI
54AQI
54AQI
32AQI
34AQI
40AQI
57AQI
65AQI
28AQI
31AQI
25AQI
35AQI
37AQI
34AQI
39AQI
51AQI
47AQI
48AQI
56AQI
26AQI
27AQI
30AQI
31AQI
32AQI
41AQI
20AQI
21AQI
17AQI
22AQI
25AQI
34AQI
48AQI
37AQI
No. of days
202528AQI
Highest AQI recorded in
September48AQI
Lowest AQI recorded in
May17AQI
Most & Least Polluted Years Over the Last 1 Years
South 12th Avenue's annual 2025 AQI (28) shows an average percentage change of NaN% (improved AQI) compared to previous years: .