Pomona, California, 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
Pomona, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (10th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 55 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Pomona, California, United States
5 AM10th Aug 2025
7 PM
4 AM11th Aug 2025
51AQI
44AQI
55AQI
45AQI
In the last 24 hours,
Pomona's AQI reached its highest point of 55 at 9 PM during the Night, while the lowest point, 44, was recorded at 12 PM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Pomona, California, United States
24°C18/31°C
24°C18/31°C
24°C18/32°C
23°C18/30°C
23°C18/30°C
25°C20/32°C
23°C19/29°C
23°C19/30°C
23°C19/29°C
21°C18/29°C
22°C18/29°C
23°C17/31°C
23°C17/31°C
22°C17/29°C
21°C16/28°C
22°C17/30°C
23°C17/31°C
24°C17/33°C
26°C18/34°C
26°C19/34°C
25°C18/33°C
25°C18/33°C
26°C19/33°C
25°C19/33°C
27°C19/34°C
28°C21/37°C
30°C23/39°C
30°C25/38°C
28°C21/37°C
26°C21/34°C
--°C/°C
43AQI
36AQI
42AQI
36AQI
2025 Days Vs Air Quality
Pomona, California, United States
63%
87
37%
51
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 63%
Health Risk Level:
Moderate
In 2025, 63% of 223 days were within WHO’s safe air quality limits, and 37% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Pomona, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
26AQI
28AQI
32AQI
32AQI
20AQI
22AQI
24AQI
29AQI
29AQI
20AQI
24AQI
29AQI
42AQI
49AQI
52AQI
52AQI
54AQI
58AQI
56AQI
51AQI
38AQI
26AQI
31AQI
35AQI
39AQI
43AQI
55AQI
49AQI
46AQI
40AQI
17AQI
19AQI
25AQI
39AQI
53AQI
51AQI
46AQI
46AQI
29AQI
32AQI
32AQI
36AQI
45AQI
47AQI
40AQI
39AQI
47AQI
24AQI
31AQI
48AQI
54AQI
41AQI
34AQI
44AQI
51AQI
53AQI
59AQI
59AQI
55AQI
52AQI
53AQI
52AQI
50AQI
46AQI
48AQI
50AQI
47AQI
37AQI
39AQI
41AQI
43AQI
39AQI
45AQI
45AQI
48AQI
53AQI
52AQI
53AQI
52AQI
55AQI
55AQI
59AQI
60AQI
58AQI
56AQI
56AQI
53AQI
53AQI
53AQI
51AQI
48AQI
50AQI
53AQI
51AQI
47AQI
41AQI
42AQI
44AQI
45AQI
48AQI
98AQI
63AQI
55AQI
50AQI
45AQI
45AQI
52AQI
54AQI
52AQI
46AQI
39AQI
33AQI
27AQI
31AQI
35AQI
42AQI
39AQI
30AQI
27AQI
28AQI
23AQI
24AQI
30AQI
32AQI
37AQI
45AQI
51AQI
51AQI
49AQI
54AQI
60AQI
66AQI
67AQI
64AQI
61AQI
56AQI
55AQI
28AQI
38AQI
45AQI
50AQI
42AQI
58AQI
No. of days
202544AQI
Highest AQI recorded in
August58AQI
Lowest AQI recorded in
March28AQI
Most & Least Polluted Years Over the Last 1 Years
Pomona's annual 2025 AQI (44) shows an average percentage change of NaN% (improved AQI) compared to previous years: .