South Pinehurst Place, Ontario, California, 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 Pinehurst Place, Ontario, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (29th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 43 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Oct - 30th Oct 2025
South Pinehurst Place, Ontario, California, United States
6 AM29th Oct 2025
6 PM
5 AM30th Oct 2025
62AQI
21AQI
56AQI
42AQI
In the last 24 hours,
South Pinehurst Place's AQI reached its highest point of 62 at 10 AM during the Day, while the lowest point, 21, was recorded at 5 PM during the Day between 29th Oct and 30th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
South Pinehurst Place, Ontario, California, United States
--°C/°C
21°C15/30°C
21°C14/31°C
19°C15/25°C
19°C13/29°C
20°C13/32°C
19°C13/30°C
19°C12/30°C
19°C12/29°C
21°C13/32°C
25°C17/34°C
23°C16/32°C
19°C12/30°C
17°C13/21°C
14°C12/15°C
15°C11/22°C
17°C11/26°C
21°C13/32°C
22°C14/33°C
22°C15/33°C
22°C13/33°C
21°C15/31°C
18°C13/26°C
18°C12/25°C
20°C13/31°C
17°C13/25°C
16°C12/22°C
18°C13/26°C
24°C14/38°C
26°C18/38°C
23°C18/31°C
63AQI
53AQI
58AQI
54AQI
2025 Days Vs Air Quality
South Pinehurst Place, Ontario, California, United States
60%
131
40%
87
Total number of days with different AQI categories in last 304 days in 2025 (61 days remaining)
Under WHO’s Safe Air Quality Limits: 60%
Health Risk Level:
Moderate
In 2025, 60% of 304 days were within WHO’s safe air quality limits, and 40% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
South Pinehurst Place, Ontario, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
33AQI
29AQI
33AQI
31AQI
22AQI
23AQI
23AQI
32AQI
33AQI
24AQI
28AQI
36AQI
45AQI
47AQI
51AQI
52AQI
52AQI
57AQI
55AQI
54AQI
41AQI
32AQI
30AQI
36AQI
44AQI
48AQI
52AQI
44AQI
42AQI
38AQI
20AQI
17AQI
26AQI
40AQI
51AQI
49AQI
46AQI
45AQI
25AQI
32AQI
31AQI
39AQI
48AQI
49AQI
43AQI
44AQI
47AQI
25AQI
30AQI
48AQI
53AQI
40AQI
32AQI
46AQI
52AQI
55AQI
61AQI
62AQI
57AQI
55AQI
56AQI
54AQI
50AQI
47AQI
47AQI
50AQI
44AQI
40AQI
38AQI
40AQI
40AQI
40AQI
42AQI
47AQI
46AQI
48AQI
46AQI
51AQI
50AQI
52AQI
55AQI
58AQI
59AQI
59AQI
56AQI
55AQI
55AQI
54AQI
53AQI
50AQI
48AQI
51AQI
51AQI
53AQI
51AQI
46AQI
48AQI
47AQI
45AQI
44AQI
77AQI
60AQI
55AQI
51AQI
47AQI
47AQI
51AQI
53AQI
50AQI
46AQI
37AQI
32AQI
28AQI
31AQI
36AQI
40AQI
39AQI
32AQI
29AQI
30AQI
25AQI
26AQI
29AQI
32AQI
37AQI
47AQI
51AQI
53AQI
49AQI
56AQI
61AQI
66AQI
68AQI
65AQI
62AQI
57AQI
56AQI
55AQI
58AQI
57AQI
90AQI
55AQI
44AQI
46AQI
48AQI
49AQI
48AQI
54AQI
63AQI
56AQI
58AQI
53AQI
53AQI
49AQI
50AQI
46AQI
49AQI
52AQI
51AQI
46AQI
50AQI
48AQI
49AQI
50AQI
47AQI
39AQI
30AQI
32AQI
34AQI
37AQI
48AQI
56AQI
57AQI
57AQI
39AQI
37AQI
43AQI
42AQI
43AQI
43AQI
44AQI
48AQI
50AQI
38AQI
31AQI
40AQI
52AQI
55AQI
56AQI
45AQI
49AQI
53AQI
57AQI
63AQI
71AQI
69AQI
66AQI
61AQI
57AQI
55AQI
54AQI
41AQI
51AQI
44AQI
51AQI
44AQI
45AQI
56AQI
63AQI
54AQI
48AQI
61AQI
78AQI
79AQI
76AQI
56AQI
43AQI
30AQI
39AQI
46AQI
49AQI
42AQI
56AQI
45AQI
57AQI
No. of days
202547AQI
Highest AQI recorded in
October57AQI
Lowest AQI recorded in
March30AQI
Most & Least Polluted Years Over the Last 1 Years
South Pinehurst Place's annual 2025 AQI (47) shows an average percentage change of NaN% (improved AQI) compared to previous years: .