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!
June Air Quality Analysis
Pomona, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (2nd June):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 45 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026
Pomona, California, United States
5 AM1st Jun 2026
7 PM
4 AM2nd Jun 2026
46AQI
24AQI
52AQI
28AQI
In the last 24 hours,
Pomona's AQI reached its highest point of 52 at 3 AM during the Night, while the lowest point, 24, was recorded at 7 AM during the Day between 1st Jun and 2nd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Pomona, California, United States
15°C10/21°C
14°C10/19°C
17°C9/28°C
20°C12/32°C
19°C12/31°C
21°C13/32°C
21°C12/33°C
23°C13/36°C
18°C14/25°C
19°C13/27°C
18°C11/29°C
18°C13/25°C
18°C14/25°C
17°C14/23°C
20°C14/32°C
22°C12/35°C
22°C15/29°C
22°C14/33°C
19°C13/29°C
19°C13/29°C
18°C14/28°C
18°C11/28°C
16°C11/21°C
16°C11/20°C
15°C9/23°C
17°C11/24°C
20°C11/31°C
23°C13/34°C
21°C14/32°C
20°C14/31°C
53AQI
32AQI
41AQI
31AQI
2026 Days Vs Air Quality
Pomona, California, United States
92%
138
8%
12
Total number of days with different AQI categories in last 153 days in 2026 (212 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2026, 92% of 153 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
Pomona, California, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI (US)
14AQI (US)
16AQI (US)
21AQI (US)
24AQI (US)
19AQI (US)
22AQI (US)
22AQI (US)
25AQI (US)
21AQI (US)
16AQI (US)
17AQI (US)
24AQI (US)
19AQI (US)
20AQI (US)
24AQI (US)
19AQI (US)
19AQI (US)
26AQI (US)
22AQI (US)
51AQI (US)
58AQI (US)
51AQI (US)
36AQI (US)
42AQI (US)
40AQI (US)
33AQI (US)
43AQI (US)
50AQI (US)
55AQI (US)
35AQI (US)
51AQI (US)
49AQI (US)
47AQI (US)
37AQI (US)
47AQI (US)
42AQI (US)
40AQI (US)
35AQI (US)
45AQI (US)
38AQI (US)
28AQI (US)
26AQI (US)
32AQI (US)
36AQI (US)
38AQI (US)
38AQI (US)
32AQI (US)
31AQI (US)
30AQI (US)
26AQI (US)
27AQI (US)
32AQI (US)
35AQI (US)
39AQI (US)
40AQI (US)
34AQI (US)
31AQI (US)
32AQI (US)
34AQI (US)
50AQI (US)
32AQI (US)
39AQI (US)
35AQI (US)
22AQI (US)
31AQI (US)
28AQI (US)
29AQI (US)
32AQI (US)
38AQI (US)
35AQI (US)
40AQI (US)
28AQI (US)
30AQI (US)
32AQI (US)
31AQI (US)
35AQI (US)
41AQI (US)
48AQI (US)
34AQI (US)
32AQI (US)
41AQI (US)
40AQI (US)
42AQI (US)
40AQI (US)
45AQI (US)
33AQI (US)
29AQI (US)
37AQI (US)
33AQI (US)
25AQI (US)
18AQI (US)
32AQI (US)
28AQI (US)
30AQI (US)
37AQI (US)
41AQI (US)
44AQI (US)
37AQI (US)
31AQI (US)
31AQI (US)
21AQI (US)
19AQI (US)
22AQI (US)
35AQI (US)
28AQI (US)
33AQI (US)
34AQI (US)
31AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
24AQI (US)
20AQI (US)
25AQI (US)
30AQI (US)
30AQI (US)
38AQI (US)
41AQI (US)
27AQI (US)
33AQI (US)
33AQI (US)
31AQI (US)
37AQI (US)
43AQI (US)
35AQI (US)
42AQI (US)
35AQI (US)
36AQI (US)
34AQI (US)
50AQI (US)
51AQI (US)
59AQI (US)
60AQI (US)
56AQI (US)
53AQI (US)
47AQI (US)
55AQI (US)
53AQI (US)
46AQI (US)
43AQI (US)
26AQI (US)
22AQI (US)
18AQI (US)
17AQI (US)
19AQI (US)
25AQI (US)
34AQI (US)
45AQI (US)
29AQI (US)
36AQI (US)
35AQI (US)
29AQI (US)
39AQI (US)
40AQI (US)
No. of days
202634AQI (US)
Highest AQI (US) recorded in
June40AQI (US)
Lowest AQI (US) recorded in
April29AQI (US)
202545AQI (US)
Highest AQI (US) recorded in
August54AQI (US)
Lowest AQI (US) recorded in
March28AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Pomona's annual 2026 AQI (US) (34) shows an average percentage change of -24.4% (improved AQI (US)) compared to previous years: 2025 (45).