Austin, Texas, 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
Austin, Texas, United States
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 63 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2025
Austin, Texas, United States
7 AM2nd Oct 2025
7 PM
6 AM3rd Oct 2025
81AQI
56AQI
65AQI
54AQI
In the last 24 hours,
Austin's AQI reached its highest point of 81 at 11 AM during the Day, while the lowest point, 54, was recorded at 6 AM during the Night between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Austin, Texas, United States
31°C25/38°C
32°C21/42°C
32°C26/40°C
27°C23/32°C
25°C23/28°C
28°C23/35°C
27°C19/36°C
29°C20/38°C
29°C21/37°C
30°C23/36°C
29°C23/35°C
30°C23/36°C
30°C24/38°C
30°C24/37°C
30°C24/37°C
30°C24/37°C
31°C25/37°C
30°C23/36°C
30°C25/38°C
31°C25/39°C
31°C26/39°C
29°C27/34°C
28°C22/34°C
27°C18/36°C
27°C18/37°C
27°C19/36°C
27°C19/36°C
29°C21/37°C
28°C20/38°C
29°C20/38°C
--°C/°C
48AQI
42AQI
44AQI
42AQI
2025 Days Vs Air Quality
Austin, Texas, United States
77%
213
23%
62
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 77%
Health Risk Level:
Low
In 2025, 77% of 276 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
Austin, Texas, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
39AQI
44AQI
59AQI
49AQI
33AQI
25AQI
29AQI
34AQI
35AQI
29AQI
30AQI
31AQI
26AQI
30AQI
31AQI
36AQI
35AQI
34AQI
24AQI
26AQI
30AQI
42AQI
40AQI
30AQI
32AQI
34AQI
37AQI
51AQI
44AQI
32AQI
35AQI
35AQI
35AQI
34AQI
36AQI
39AQI
45AQI
45AQI
47AQI
34AQI
38AQI
29AQI
28AQI
27AQI
37AQI
35AQI
31AQI
35AQI
33AQI
26AQI
26AQI
27AQI
30AQI
30AQI
32AQI
34AQI
30AQI
30AQI
34AQI
42AQI
38AQI
41AQI
54AQI
42AQI
39AQI
54AQI
51AQI
33AQI
35AQI
37AQI
43AQI
49AQI
55AQI
80AQI
40AQI
46AQI
40AQI
51AQI
33AQI
40AQI
39AQI
44AQI
39AQI
48AQI
41AQI
31AQI
31AQI
38AQI
65AQI
48AQI
51AQI
61AQI
68AQI
58AQI
31AQI
25AQI
26AQI
35AQI
35AQI
38AQI
42AQI
45AQI
39AQI
38AQI
42AQI
46AQI
39AQI
52AQI
59AQI
42AQI
27AQI
42AQI
40AQI
54AQI
50AQI
58AQI
50AQI
52AQI
46AQI
52AQI
53AQI
40AQI
28AQI
27AQI
31AQI
42AQI
32AQI
34AQI
26AQI
30AQI
32AQI
34AQI
44AQI
50AQI
60AQI
65AQI
67AQI
56AQI
62AQI
59AQI
38AQI
59AQI
47AQI
53AQI
57AQI
56AQI
31AQI
31AQI
36AQI
37AQI
37AQI
44AQI
47AQI
57AQI
55AQI
49AQI
54AQI
55AQI
56AQI
46AQI
46AQI
35AQI
30AQI
35AQI
51AQI
52AQI
36AQI
36AQI
54AQI
53AQI
52AQI
38AQI
41AQI
44AQI
31AQI
24AQI
25AQI
26AQI
25AQI
26AQI
39AQI
43AQI
53AQI
45AQI
45AQI
59AQI
59AQI
55AQI
49AQI
35AQI
40AQI
47AQI
40AQI
34AQI
32AQI
45AQI
57AQI
61AQI
49AQI
44AQI
42AQI
46AQI
42AQI
38AQI
32AQI
31AQI
31AQI
32AQI
47AQI
57AQI
54AQI
50AQI
41AQI
38AQI
37AQI
32AQI
40AQI
43AQI
36AQI
36AQI
39AQI
34AQI
34AQI
34AQI
36AQI
54AQI
38AQI
39AQI
55AQI
34AQI
39AQI
47AQI
45AQI
49AQI
45AQI
51AQI
55AQI
53AQI
47AQI
49AQI
47AQI
47AQI
38AQI
26AQI
36AQI
40AQI
40AQI
43AQI
38AQI
47AQI
48AQI
51AQI
54AQI
51AQI
44AQI
54AQI
54AQI
57AQI
50AQI
54AQI
50AQI
49AQI
40AQI
31AQI
26AQI
25AQI
24AQI
31AQI
42AQI
39AQI
38AQI
36AQI
38AQI
57AQI
63AQI
35AQI
34AQI
44AQI
45AQI
44AQI
42AQI
45AQI
42AQI
42AQI
60AQI
No. of days
202542AQI
Highest AQI recorded in
October60AQI
Lowest AQI recorded in
February34AQI
202437AQI
Highest AQI recorded in
May51AQI
Lowest AQI recorded in
January25AQI
202335AQI
Highest AQI recorded in
June43AQI
Lowest AQI recorded in
December19AQI
202234AQI
Highest AQI recorded in
June42AQI
Lowest AQI recorded in
August17AQI
202133AQI
Highest AQI recorded in
December38AQI
Lowest AQI recorded in
November25AQI
202038AQI
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
November33AQI
Most & Least Polluted Years Over the Last 6 Years
Austin's annual 2025 AQI (42) shows an average percentage change of 18.3% (worsened AQI) compared to previous years: 2020 (38), 2021 (33), 2022 (34), 2023 (35), 2024 (37).