Trenton, New Jersey, 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
Trenton, New Jersey, United States
AQI Trends: Highest and Lowest
Same Day Analysis (11th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 48 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Oct - 12th Oct 2025
Trenton, New Jersey, United States
6 AM11th Oct 2025
6 PM
5 AM12th Oct 2025
38AQI
29AQI
43AQI
28AQI
In the last 24 hours,
Trenton's AQI reached its highest point of 43 at 10 PM during the Night, while the lowest point, 28, was recorded at 5 AM during the Night between 11th Oct and 12th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Trenton, New Jersey, United States
21°C12/29°C
21°C14/29°C
23°C17/30°C
21°C16/29°C
20°C16/26°C
19°C17/22°C
23°C18/30°C
24°C16/32°C
18°C15/21°C
18°C11/27°C
17°C11/25°C
23°C16/33°C
23°C18/32°C
24°C21/29°C
23°C19/30°C
22°C16/30°C
23°C18/31°C
22°C16/30°C
22°C16/30°C
18°C12/25°C
15°C9/21°C
15°C6/23°C
19°C9/31°C
21°C13/32°C
20°C12/30°C
21°C16/27°C
20°C13/23°C
14°C9/20°C
11°C4/18°C
14°C8/21°C
--°C/°C
39AQI
39AQI
40AQI
38AQI
2025 Days Vs Air Quality
Trenton, New Jersey, United States
85%
169
15%
30
Total number of days with different AQI categories in last 285 days in 2025 (80 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 285 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
Trenton, New Jersey, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI
38AQI
55AQI
41AQI
40AQI
22AQI
24AQI
36AQI
31AQI
24AQI
34AQI
20AQI
23AQI
19AQI
23AQI
22AQI
17AQI
20AQI
28AQI
37AQI
15AQI
22AQI
44AQI
54AQI
32AQI
31AQI
34AQI
27AQI
54AQI
40AQI
34AQI
15AQI
20AQI
35AQI
37AQI
26AQI
44AQI
47AQI
31AQI
23AQI
24AQI
21AQI
36AQI
25AQI
18AQI
38AQI
39AQI
32AQI
31AQI
31AQI
40AQI
39AQI
20AQI
18AQI
17AQI
18AQI
15AQI
19AQI
12AQI
12AQI
15AQI
18AQI
15AQI
16AQI
23AQI
19AQI
14AQI
18AQI
34AQI
47AQI
55AQI
55AQI
46AQI
30AQI
26AQI
33AQI
54AQI
62AQI
66AQI
63AQI
46AQI
35AQI
32AQI
32AQI
45AQI
29AQI
47AQI
49AQI
58AQI
58AQI
53AQI
47AQI
35AQI
33AQI
50AQI
48AQI
38AQI
30AQI
46AQI
43AQI
61AQI
54AQI
34AQI
37AQI
37AQI
34AQI
37AQI
33AQI
21AQI
27AQI
24AQI
40AQI
33AQI
21AQI
26AQI
29AQI
35AQI
40AQI
32AQI
37AQI
44AQI
41AQI
77AQI
46AQI
55AQI
60AQI
59AQI
38AQI
46AQI
52AQI
61AQI
75AQI
69AQI
51AQI
32AQI
38AQI
41AQI
49AQI
43AQI
37AQI
37AQI
52AQI
54AQI
53AQI
27AQI
20AQI
18AQI
16AQI
27AQI
31AQI
25AQI
24AQI
17AQI
19AQI
28AQI
28AQI
18AQI
22AQI
33AQI
25AQI
30AQI
30AQI
42AQI
56AQI
39AQI
21AQI
24AQI
22AQI
25AQI
40AQI
43AQI
45AQI
44AQI
35AQI
22AQI
26AQI
36AQI
20AQI
24AQI
24AQI
31AQI
45AQI
29AQI
25AQI
28AQI
37AQI
40AQI
23AQI
40AQI
39AQI
50AQI
57AQI
65AQI
63AQI
49AQI
33AQI
38AQI
41AQI
48AQI
39AQI
29AQI
25AQI
43AQI
40AQI
37AQI
32AQI
48AQI
No. of days
202535AQI
Highest AQI recorded in
October48AQI
Lowest AQI recorded in
May25AQI
Most & Least Polluted Years Over the Last 1 Years
Trenton's annual 2025 AQI (35) shows an average percentage change of NaN% (improved AQI) compared to previous years: .