Highway V, Saint Charles, Missouri, 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
Highway V, Saint Charles, Missouri, United States
AQI Trends: Highest and Lowest
Same Day Analysis (8th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 9th Aug - 10th Aug 2025
Highway V, Saint Charles, Missouri, United States
5 AM9th Aug 2025
8 PM
4 AM10th Aug 2025
52AQI
44AQI
52AQI
45AQI
In the last 24 hours,
Highway V's AQI reached its highest point of 52 at 4 PM during the Day, while the lowest point, 44, was recorded at 1 PM during the Day between 9th Aug and 10th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Highway V, Saint Charles, Missouri, United States
30°C24/38°C
28°C25/33°C
26°C23/30°C
26°C23/33°C
28°C25/32°C
30°C23/38°C
27°C24/33°C
27°C24/34°C
29°C24/35°C
32°C26/39°C
26°C23/30°C
29°C24/36°C
31°C26/38°C
31°C25/38°C
30°C25/37°C
31°C26/37°C
31°C26/35°C
32°C27/37°C
32°C26/39°C
31°C22/36°C
25°C23/27°C
24°C18/30°C
22°C17/29°C
23°C16/28°C
25°C19/31°C
26°C22/32°C
28°C21/35°C
30°C25/34°C
31°C26/38°C
31°C25/38°C
--°C/°C
46AQI
46AQI
48AQI
45AQI
2025 Days Vs Air Quality
Highway V, Saint Charles, Missouri, United States
79%
106
21%
28
0.7%
1
Total number of days with different AQI categories in last 222 days in 2025 (143 days remaining)
Under WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2025, 79% of 222 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
Highway V, Saint Charles, Missouri, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
51AQI
37AQI
40AQI
25AQI
17AQI
33AQI
38AQI
30AQI
26AQI
24AQI
21AQI
32AQI
22AQI
29AQI
41AQI
40AQI
56AQI
42AQI
39AQI
23AQI
38AQI
48AQI
56AQI
46AQI
50AQI
22AQI
38AQI
40AQI
46AQI
37AQI
25AQI
26AQI
40AQI
33AQI
31AQI
26AQI
28AQI
27AQI
19AQI
19AQI
33AQI
29AQI
31AQI
28AQI
39AQI
37AQI
36AQI
30AQI
38AQI
56AQI
43AQI
29AQI
25AQI
32AQI
26AQI
16AQI
15AQI
21AQI
30AQI
35AQI
22AQI
25AQI
26AQI
47AQI
31AQI
43AQI
41AQI
49AQI
58AQI
49AQI
41AQI
52AQI
81AQI
56AQI
59AQI
62AQI
76AQI
78AQI
49AQI
34AQI
44AQI
31AQI
39AQI
35AQI
25AQI
43AQI
51AQI
53AQI
58AQI
54AQI
52AQI
49AQI
36AQI
27AQI
25AQI
28AQI
30AQI
46AQI
54AQI
63AQI
81AQI
60AQI
42AQI
51AQI
36AQI
41AQI
47AQI
34AQI
35AQI
31AQI
37AQI
36AQI
35AQI
31AQI
50AQI
53AQI
30AQI
43AQI
55AQI
57AQI
46AQI
47AQI
28AQI
38AQI
49AQI
48AQI
43AQI
112AQI
78AQI
43AQI
36AQI
32AQI
49AQI
54AQI
53AQI
34AQI
36AQI
30AQI
48AQI
44AQI
57AQI
No. of days
202540AQI
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
May30AQI
Most & Least Polluted Years Over the Last 1 Years
Highway V's annual 2025 AQI (40) shows an average percentage change of NaN% (improved AQI) compared to previous years: .