South Old Spanish Trail, Tucson, 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
South Old Spanish Trail, Tucson, Arizona, United States
AQI Trends: Highest and Lowest
Same Day Analysis (29th 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: 29th Oct - 30th Oct 2025
South Old Spanish Trail, Tucson, Arizona, United States
6 AM29th Oct 2025
5 PM
5 AM30th Oct 2025
53AQI
39AQI
54AQI
34AQI
In the last 24 hours,
South Old Spanish Trail's AQI reached its highest point of 54 at 12 AM during the Night, while the lowest point, 34, was recorded at 5 AM during the Night between 29th Oct and 30th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
South Old Spanish Trail, Tucson, Arizona, United States
27°C19/37°C
27°C18/38°C
29°C19/40°C
29°C20/40°C
26°C20/35°C
23°C14/34°C
25°C14/37°C
26°C16/39°C
28°C19/37°C
30°C25/37°C
30°C21/39°C
25°C21/29°C
25°C21/31°C
22°C20/27°C
24°C18/32°C
22°C15/32°C
20°C13/29°C
20°C13/29°C
20°C11/31°C
22°C12/35°C
22°C13/34°C
24°C12/38°C
25°C18/36°C
23°C16/32°C
20°C11/29°C
21°C12/32°C
22°C13/33°C
22°C12/34°C
23°C11/36°C
24°C16/33°C
--°C/°C
48AQI
30AQI
54AQI
31AQI
2025 Days Vs Air Quality
South Old Spanish Trail, Tucson, Arizona, United States
96%
209
4%
9
Total number of days with different AQI categories in last 303 days in 2025 (62 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 303 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
South Old Spanish Trail, Tucson, Arizona, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
41AQI
33AQI
30AQI
34AQI
42AQI
36AQI
36AQI
46AQI
39AQI
27AQI
23AQI
24AQI
24AQI
26AQI
23AQI
25AQI
25AQI
26AQI
28AQI
29AQI
28AQI
33AQI
32AQI
32AQI
34AQI
19AQI
21AQI
21AQI
26AQI
30AQI
33AQI
33AQI
34AQI
31AQI
32AQI
25AQI
26AQI
28AQI
26AQI
28AQI
33AQI
28AQI
26AQI
24AQI
26AQI
27AQI
32AQI
40AQI
45AQI
38AQI
33AQI
34AQI
34AQI
38AQI
41AQI
32AQI
32AQI
44AQI
38AQI
47AQI
37AQI
40AQI
39AQI
36AQI
41AQI
37AQI
36AQI
34AQI
29AQI
26AQI
27AQI
28AQI
26AQI
29AQI
32AQI
29AQI
29AQI
32AQI
33AQI
45AQI
44AQI
41AQI
36AQI
42AQI
37AQI
38AQI
39AQI
32AQI
35AQI
42AQI
47AQI
37AQI
34AQI
34AQI
30AQI
30AQI
32AQI
44AQI
39AQI
36AQI
36AQI
39AQI
35AQI
31AQI
39AQI
34AQI
36AQI
45AQI
52AQI
47AQI
48AQI
45AQI
40AQI
38AQI
38AQI
33AQI
30AQI
31AQI
30AQI
31AQI
26AQI
25AQI
24AQI
26AQI
29AQI
42AQI
30AQI
27AQI
27AQI
35AQI
51AQI
46AQI
49AQI
50AQI
40AQI
42AQI
45AQI
43AQI
51AQI
44AQI
50AQI
42AQI
39AQI
36AQI
29AQI
24AQI
31AQI
34AQI
32AQI
38AQI
52AQI
45AQI
42AQI
34AQI
28AQI
28AQI
27AQI
34AQI
36AQI
26AQI
30AQI
27AQI
32AQI
28AQI
25AQI
21AQI
21AQI
20AQI
22AQI
25AQI
26AQI
28AQI
29AQI
30AQI
31AQI
24AQI
22AQI
22AQI
20AQI
20AQI
20AQI
20AQI
23AQI
35AQI
31AQI
13AQI
23AQI
24AQI
19AQI
41AQI
42AQI
39AQI
46AQI
47AQI
64AQI
44AQI
53AQI
54AQI
51AQI
50AQI
37AQI
39AQI
39AQI
50AQI
51AQI
49AQI
47AQI
46AQI
40AQI
39AQI
47AQI
43AQI
46AQI
46AQI
44AQI
43AQI
47AQI
48AQI
36AQI
29AQI
34AQI
34AQI
36AQI
39AQI
25AQI
46AQI
No. of days
202535AQI
Highest AQI recorded in
October46AQI
Lowest AQI recorded in
September25AQI
Most & Least Polluted Years Over the Last 1 Years
South Old Spanish Trail's annual 2025 AQI (35) shows an average percentage change of NaN% (improved AQI) compared to previous years: .