Clayton Avenue, St. Louis, Missouri, 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
Clayton Avenue, St. Louis, Missouri, United States
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 50 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Clayton Avenue, St. Louis, Missouri, United States
6 AM3rd Oct 2025
7 PM
5 AM4th Oct 2025
70AQI
37AQI
64AQI
46AQI
In the last 24 hours,
Clayton Avenue's AQI reached its highest point of 70 at 10 AM during the Day, while the lowest point, 37, was recorded at 6 AM during the Day between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Clayton Avenue, St. Louis, Missouri, United States
21°C16/27°C
21°C18/27°C
20°C15/25°C
20°C14/25°C
19°C11/26°C
21°C13/30°C
26°C19/34°C
28°C20/36°C
28°C20/37°C
30°C22/38°C
32°C24/40°C
30°C24/37°C
29°C23/36°C
28°C21/36°C
29°C20/38°C
27°C22/33°C
25°C22/31°C
25°C18/34°C
22°C19/28°C
22°C19/29°C
21°C19/23°C
20°C15/27°C
21°C14/30°C
22°C13/32°C
23°C14/34°C
24°C15/34°C
25°C16/34°C
24°C16/33°C
25°C17/33°C
26°C18/34°C
--°C/°C
52AQI
41AQI
48AQI
42AQI
2025 Days Vs Air Quality
Clayton Avenue, St. Louis, Missouri, United States
81%
155
18%
35
0.5%
1
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 81%
Health Risk Level:
Low
In 2025, 81% of 277 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
Clayton Avenue, St. Louis, Missouri, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
45AQI
34AQI
34AQI
33AQI
18AQI
28AQI
33AQI
21AQI
24AQI
23AQI
19AQI
21AQI
17AQI
23AQI
36AQI
38AQI
48AQI
34AQI
33AQI
20AQI
26AQI
42AQI
45AQI
42AQI
50AQI
21AQI
36AQI
37AQI
40AQI
34AQI
21AQI
23AQI
32AQI
27AQI
22AQI
22AQI
25AQI
22AQI
19AQI
18AQI
32AQI
27AQI
37AQI
24AQI
34AQI
33AQI
35AQI
30AQI
40AQI
53AQI
36AQI
22AQI
26AQI
26AQI
28AQI
16AQI
14AQI
19AQI
32AQI
34AQI
22AQI
26AQI
24AQI
41AQI
24AQI
38AQI
40AQI
43AQI
52AQI
48AQI
38AQI
52AQI
64AQI
50AQI
53AQI
57AQI
68AQI
70AQI
46AQI
33AQI
40AQI
29AQI
33AQI
34AQI
26AQI
36AQI
49AQI
52AQI
56AQI
53AQI
48AQI
48AQI
33AQI
27AQI
22AQI
26AQI
26AQI
37AQI
49AQI
58AQI
88AQI
59AQI
36AQI
47AQI
28AQI
34AQI
42AQI
33AQI
35AQI
34AQI
39AQI
36AQI
29AQI
27AQI
45AQI
52AQI
33AQI
43AQI
55AQI
56AQI
38AQI
38AQI
27AQI
33AQI
42AQI
38AQI
39AQI
104AQI
69AQI
34AQI
36AQI
31AQI
43AQI
47AQI
47AQI
39AQI
41AQI
40AQI
44AQI
36AQI
58AQI
54AQI
52AQI
56AQI
58AQI
48AQI
23AQI
21AQI
30AQI
34AQI
23AQI
23AQI
25AQI
31AQI
37AQI
46AQI
36AQI
27AQI
26AQI
29AQI
36AQI
50AQI
49AQI
27AQI
24AQI
26AQI
32AQI
45AQI
58AQI
58AQI
55AQI
52AQI
54AQI
54AQI
54AQI
60AQI
39AQI
45AQI
46AQI
34AQI
41AQI
25AQI
26AQI
36AQI
47AQI
50AQI
52AQI
54AQI
62AQI
62AQI
50AQI
33AQI
31AQI
28AQI
44AQI
41AQI
42AQI
43AQI
58AQI
No. of days
202538AQI
Highest AQI recorded in
October58AQI
Lowest AQI recorded in
May28AQI
Most & Least Polluted Years Over the Last 1 Years
Clayton Avenue's annual 2025 AQI (38) shows an average percentage change of NaN% (improved AQI) compared to previous years: .