Highland Park, 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
Highland Park, Texas, United States
AQI Trends: Highest and Lowest
Same Day Analysis (27th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 33 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 27th Sep - 28th Sep 2025
Highland Park, Texas, United States
7 AM27th Sep 2025
7 PM
6 AM28th Sep 2025
54AQI
20AQI
50AQI
17AQI
In the last 24 hours,
Highland Park's AQI reached its highest point of 54 at 12 PM during the Day, while the lowest point, 17, was recorded at 10 PM during the Night between 27th Sep and 28th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Highland Park, Texas, United States
25°C23/25°C
25°C23/27°C
27°C24/30°C
28°C25/32°C
30°C23/37°C
30°C24/36°C
31°C22/41°C
31°C25/38°C
24°C21/30°C
25°C21/32°C
26°C18/33°C
26°C18/35°C
28°C19/37°C
29°C21/38°C
31°C24/39°C
31°C24/36°C
31°C24/37°C
30°C24/35°C
31°C24/39°C
32°C25/39°C
31°C24/38°C
31°C25/38°C
31°C25/36°C
29°C23/35°C
29°C23/36°C
31°C26/37°C
26°C23/29°C
25°C19/32°C
26°C18/34°C
26°C18/34°C
--°C/°C
51AQI
46AQI
45AQI
45AQI
2025 Days Vs Air Quality
Highland Park, Texas, United States
79%
214
21%
56
Total number of days with different AQI categories in last 271 days in 2025 (94 days remaining)
Under WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2025, 79% of 271 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
Highland Park, Texas, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI
52AQI
57AQI
46AQI
29AQI
25AQI
25AQI
40AQI
53AQI
40AQI
38AQI
30AQI
29AQI
46AQI
55AQI
48AQI
33AQI
31AQI
27AQI
26AQI
28AQI
34AQI
39AQI
38AQI
30AQI
43AQI
37AQI
50AQI
44AQI
28AQI
42AQI
36AQI
32AQI
32AQI
48AQI
53AQI
39AQI
38AQI
37AQI
25AQI
28AQI
24AQI
23AQI
27AQI
28AQI
27AQI
30AQI
29AQI
30AQI
24AQI
26AQI
26AQI
36AQI
33AQI
33AQI
40AQI
40AQI
32AQI
38AQI
40AQI
38AQI
40AQI
46AQI
37AQI
37AQI
36AQI
36AQI
37AQI
40AQI
44AQI
45AQI
47AQI
65AQI
90AQI
42AQI
48AQI
43AQI
44AQI
31AQI
37AQI
39AQI
44AQI
37AQI
51AQI
40AQI
46AQI
44AQI
45AQI
50AQI
32AQI
49AQI
53AQI
39AQI
30AQI
24AQI
27AQI
36AQI
47AQI
39AQI
42AQI
45AQI
42AQI
43AQI
39AQI
37AQI
47AQI
44AQI
48AQI
52AQI
44AQI
34AQI
45AQI
39AQI
39AQI
38AQI
53AQI
50AQI
48AQI
44AQI
41AQI
37AQI
35AQI
24AQI
34AQI
35AQI
34AQI
31AQI
32AQI
31AQI
35AQI
34AQI
33AQI
38AQI
48AQI
56AQI
52AQI
57AQI
50AQI
52AQI
47AQI
39AQI
53AQI
51AQI
52AQI
52AQI
41AQI
39AQI
33AQI
41AQI
29AQI
37AQI
42AQI
46AQI
53AQI
46AQI
43AQI
52AQI
54AQI
53AQI
38AQI
45AQI
39AQI
32AQI
32AQI
46AQI
43AQI
33AQI
38AQI
49AQI
52AQI
50AQI
45AQI
46AQI
41AQI
40AQI
35AQI
30AQI
30AQI
31AQI
30AQI
34AQI
36AQI
42AQI
50AQI
43AQI
57AQI
56AQI
55AQI
50AQI
34AQI
38AQI
49AQI
40AQI
32AQI
31AQI
38AQI
49AQI
54AQI
53AQI
45AQI
47AQI
46AQI
49AQI
44AQI
40AQI
37AQI
36AQI
35AQI
40AQI
51AQI
55AQI
55AQI
50AQI
38AQI
51AQI
45AQI
53AQI
56AQI
50AQI
43AQI
43AQI
43AQI
44AQI
49AQI
40AQI
52AQI
44AQI
33AQI
53AQI
50AQI
55AQI
52AQI
49AQI
50AQI
51AQI
47AQI
54AQI
54AQI
54AQI
53AQI
45AQI
43AQI
33AQI
32AQI
42AQI
46AQI
33AQI
47AQI
47AQI
52AQI
47AQI
45AQI
54AQI
56AQI
56AQI
59AQI
56AQI
59AQI
59AQI
58AQI
57AQI
57AQI
56AQI
46AQI
40AQI
32AQI
29AQI
31AQI
40AQI
33AQI
38AQI
33AQI
44AQI
42AQI
41AQI
42AQI
45AQI
48AQI
47AQI
No. of days
202542AQI
Highest AQI recorded in
August48AQI
Lowest AQI recorded in
February33AQI
202444AQI
Highest AQI recorded in
May56AQI
Lowest AQI recorded in
November33AQI
202343AQI
Highest AQI recorded in
July53AQI
Lowest AQI recorded in
December35AQI
202234AQI
Highest AQI recorded in
October52AQI
Lowest AQI recorded in
January22AQI
202127AQI
Highest AQI recorded in
July33AQI
Lowest AQI recorded in
November22AQI
202031AQI
Highest AQI recorded in
June40AQI
Lowest AQI recorded in
December21AQI
Most & Least Polluted Years Over the Last 6 Years
Highland Park's annual 2025 AQI (42) shows an average percentage change of 22.01% (worsened AQI) compared to previous years: 2020 (31), 2021 (27), 2022 (34), 2023 (43), 2024 (44).