Mesa, Arizona, 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
Mesa, Arizona, United States
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 29 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2025
Mesa, Arizona, United States
6 AM2nd Oct 2025
6 PM
5 AM3rd Oct 2025
36AQI
22AQI
40AQI
24AQI
In the last 24 hours,
Mesa's AQI reached its highest point of 40 at 11 PM during the Night, while the lowest point, 22, was recorded at 6 AM during the Day between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Mesa, Arizona, United States
35°C29/42°C
32°C28/39°C
30°C23/37°C
33°C27/40°C
34°C28/40°C
35°C29/42°C
35°C28/43°C
35°C27/43°C
33°C26/40°C
33°C27/38°C
31°C23/38°C
31°C22/39°C
33°C24/42°C
34°C26/42°C
33°C27/41°C
32°C28/39°C
33°C27/40°C
34°C28/41°C
33°C26/41°C
31°C25/38°C
32°C24/41°C
35°C27/44°C
34°C27/44°C
27°C20/34°C
25°C20/33°C
26°C20/34°C
28°C21/36°C
29°C22/38°C
29°C21/38°C
30°C22/41°C
--°C/°C
38AQI
31AQI
47AQI
31AQI
2025 Days Vs Air Quality
Mesa, Arizona, United States
88%
168
12%
22
0.5%
1
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% 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
Mesa, Arizona, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
38AQI
37AQI
33AQI
41AQI
43AQI
38AQI
37AQI
52AQI
26AQI
22AQI
21AQI
23AQI
31AQI
44AQI
42AQI
43AQI
44AQI
43AQI
39AQI
44AQI
38AQI
30AQI
36AQI
35AQI
35AQI
27AQI
31AQI
33AQI
31AQI
27AQI
32AQI
31AQI
26AQI
28AQI
33AQI
24AQI
33AQI
35AQI
37AQI
36AQI
32AQI
28AQI
28AQI
30AQI
31AQI
46AQI
43AQI
43AQI
35AQI
42AQI
36AQI
35AQI
35AQI
44AQI
39AQI
37AQI
42AQI
45AQI
40AQI
38AQI
40AQI
38AQI
39AQI
41AQI
42AQI
39AQI
45AQI
43AQI
27AQI
31AQI
27AQI
28AQI
30AQI
33AQI
36AQI
37AQI
36AQI
40AQI
43AQI
41AQI
41AQI
39AQI
57AQI
47AQI
51AQI
50AQI
45AQI
44AQI
44AQI
40AQI
40AQI
39AQI
45AQI
43AQI
39AQI
38AQI
41AQI
133AQI
75AQI
63AQI
43AQI
52AQI
48AQI
43AQI
54AQI
42AQI
43AQI
45AQI
49AQI
44AQI
45AQI
43AQI
59AQI
34AQI
33AQI
32AQI
34AQI
48AQI
36AQI
28AQI
37AQI
31AQI
30AQI
30AQI
33AQI
36AQI
40AQI
52AQI
49AQI
34AQI
36AQI
45AQI
47AQI
48AQI
47AQI
44AQI
57AQI
85AQI
58AQI
61AQI
54AQI
78AQI
45AQI
35AQI
33AQI
30AQI
33AQI
40AQI
73AQI
73AQI
48AQI
54AQI
83AQI
38AQI
31AQI
34AQI
29AQI
23AQI
30AQI
96AQI
41AQI
65AQI
62AQI
29AQI
24AQI
29AQI
25AQI
30AQI
47AQI
28AQI
25AQI
26AQI
34AQI
34AQI
39AQI
46AQI
33AQI
32AQI
25AQI
27AQI
24AQI
27AQI
29AQI
32AQI
29AQI
14AQI
21AQI
22AQI
23AQI
32AQI
29AQI
38AQI
34AQI
38AQI
40AQI
46AQI
48AQI
34AQI
31AQI
No. of days
202540AQI
Highest AQI recorded in
August48AQI
Lowest AQI recorded in
October31AQI
Most & Least Polluted Years Over the Last 1 Years
Mesa's annual 2025 AQI (40) shows an average percentage change of NaN% (improved AQI) compared to previous years: .