SETRPC 43 Jefferson Co Airport C643, Port Arthur, Texas, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
SETRPC 43 Jefferson Co Airport C643, Port Arthur, Texas, United States
AQI Trends: Highest and Lowest
Same Day Analysis (28th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 38 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Sep - 30th Sep 2025
SETRPC 43 Jefferson Co Airport C643, Port Arthur, Texas, United States
7 AM29th Sep 2025
7 PM
6 AM30th Sep 2025
38AQI
12AQI
44AQI
14AQI
In the last 24 hours,
SETRPC 43 Jefferson Co Airport C643's AQI reached its highest point of 44 at 12 AM during the Night, while the lowest point, undefined, was recorded at 6 AM during the Night between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
SETRPC 43 Jefferson Co Airport C643, Port Arthur, Texas, United States
26°C24/32°C
27°C24/32°C
29°C24/34°C
29°C25/35°C
30°C25/37°C
29°C26/33°C
30°C27/33°C
26°C23/31°C
26°C21/33°C
26°C18/33°C
28°C19/36°C
30°C24/37°C
29°C24/37°C
29°C23/37°C
29°C23/37°C
28°C25/33°C
29°C23/37°C
30°C25/37°C
28°C23/35°C
28°C22/35°C
28°C24/32°C
27°C23/32°C
27°C25/32°C
27°C25/32°C
27°C24/32°C
27°C23/34°C
26°C20/33°C
26°C18/33°C
26°C18/34°C
27°C18/35°C
--°C/°C
45AQI
42AQI
42AQI
42AQI
2025 Days Vs Air Quality
SETRPC 43 Jefferson Co Airport C643, Port Arthur, Texas, United States
70%
130
30%
56
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 273 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
SETRPC 43 Jefferson Co Airport C643, Port Arthur, Texas, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
37AQI
42AQI
35AQI
52AQI
56AQI
61AQI
51AQI
55AQI
54AQI
53AQI
23AQI
24AQI
41AQI
40AQI
29AQI
37AQI
46AQI
37AQI
35AQI
40AQI
46AQI
37AQI
40AQI
55AQI
55AQI
49AQI
47AQI
49AQI
54AQI
54AQI
45AQI
35AQI
32AQI
29AQI
44AQI
49AQI
40AQI
27AQI
27AQI
30AQI
40AQI
33AQI
33AQI
29AQI
31AQI
30AQI
26AQI
35AQI
41AQI
48AQI
50AQI
52AQI
44AQI
48AQI
52AQI
43AQI
43AQI
36AQI
42AQI
54AQI
47AQI
30AQI
30AQI
29AQI
33AQI
41AQI
51AQI
49AQI
40AQI
36AQI
43AQI
52AQI
60AQI
47AQI
49AQI
51AQI
36AQI
27AQI
33AQI
47AQI
48AQI
33AQI
44AQI
55AQI
51AQI
53AQI
55AQI
56AQI
38AQI
29AQI
28AQI
25AQI
24AQI
32AQI
36AQI
54AQI
60AQI
64AQI
57AQI
51AQI
61AQI
60AQI
58AQI
49AQI
47AQI
55AQI
54AQI
52AQI
38AQI
34AQI
46AQI
54AQI
54AQI
52AQI
42AQI
43AQI
39AQI
35AQI
33AQI
34AQI
39AQI
41AQI
43AQI
52AQI
57AQI
62AQI
49AQI
51AQI
42AQI
48AQI
54AQI
56AQI
41AQI
32AQI
31AQI
33AQI
28AQI
37AQI
39AQI
35AQI
35AQI
39AQI
36AQI
46AQI
45AQI
48AQI
56AQI
55AQI
50AQI
41AQI
49AQI
55AQI
55AQI
48AQI
44AQI
51AQI
40AQI
36AQI
49AQI
45AQI
46AQI
41AQI
43AQI
37AQI
50AQI
46AQI
52AQI
58AQI
46AQI
59AQI
60AQI
61AQI
56AQI
54AQI
57AQI
50AQI
44AQI
29AQI
23AQI
26AQI
21AQI
22AQI
28AQI
37AQI
40AQI
38AQI
44AQI
43AQI
38AQI
43AQI
49AQI
44AQI
44AQI
No. of days
202543AQI
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
May38AQI
Most & Least Polluted Years Over the Last 1 Years
SETRPC 43 Jefferson Co Airport C643's annual 2025 AQI (43) shows an average percentage change of NaN% (improved AQI) compared to previous years: .