Stony Plain, Alberta, Canada 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
Stony Plain, Alberta, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (25th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 51 of Moderate air quality on the same day.
Day & Night AQI Trend: 25th Sep - 26th Sep 2026
Stony Plain, Alberta, Canada
7 AM25th Sep 2026
8 PM
6 AM26th Sep 2026
59AQI
44AQI
62AQI
38AQI
In the last 24 hours,
Stony Plain's AQI reached its highest point of 62 at 9 PM during the Night, while the lowest point, 38, was recorded at 5 AM during the Night between 25th Sep and 26th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Stony Plain, Alberta, Canada
14°C9/20°C
13°C8/19°C
15°C9/20°C
15°C9/21°C
15°C9/22°C
15°C10/20°C
14°C11/17°C
11°C9/15°C
9°C7/11°C
12°C8/16°C
13°C10/17°C
14°C8/21°C
16°C10/23°C
12°C9/15°C
8°C4/12°C
8°C5/13°C
9°C3/17°C
9°C6/14°C
8°C2/14°C
10°C4/19°C
13°C7/20°C
13°C7/19°C
14°C7/22°C
15°C9/22°C
15°C8/23°C
12°C9/17°C
10°C7/16°C
9°C5/14°C
11°C6/15°C
6°C3/9°C
53AQI
45AQI
51AQI
49AQI
2026 Days Vs Air Quality
Stony Plain, Alberta, Canada
83%
221
17%
44
Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)
Under WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% of 269 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
Stony Plain, Alberta, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
52AQI (US)
26AQI (US)
18AQI (US)
26AQI (US)
49AQI (US)
36AQI (US)
25AQI (US)
20AQI (US)
32AQI (US)
29AQI (US)
21AQI (US)
24AQI (US)
38AQI (US)
28AQI (US)
12AQI (US)
18AQI (US)
17AQI (US)
15AQI (US)
32AQI (US)
22AQI (US)
18AQI (US)
47AQI (US)
54AQI (US)
56AQI (US)
49AQI (US)
50AQI (US)
48AQI (US)
44AQI (US)
49AQI (US)
44AQI (US)
42AQI (US)
48AQI (US)
48AQI (US)
48AQI (US)
49AQI (US)
50AQI (US)
46AQI (US)
42AQI (US)
43AQI (US)
44AQI (US)
46AQI (US)
44AQI (US)
44AQI (US)
51AQI (US)
46AQI (US)
38AQI (US)
42AQI (US)
49AQI (US)
43AQI (US)
42AQI (US)
40AQI (US)
44AQI (US)
40AQI (US)
42AQI (US)
46AQI (US)
38AQI (US)
32AQI (US)
32AQI (US)
34AQI (US)
38AQI (US)
46AQI (US)
44AQI (US)
49AQI (US)
46AQI (US)
38AQI (US)
38AQI (US)
38AQI (US)
39AQI (US)
33AQI (US)
37AQI (US)
39AQI (US)
42AQI (US)
38AQI (US)
34AQI (US)
35AQI (US)
34AQI (US)
32AQI (US)
34AQI (US)
35AQI (US)
34AQI (US)
34AQI (US)
39AQI (US)
42AQI (US)
34AQI (US)
36AQI (US)
34AQI (US)
34AQI (US)
40AQI (US)
32AQI (US)
32AQI (US)
33AQI (US)
34AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
30AQI (US)
30AQI (US)
30AQI (US)
30AQI (US)
34AQI (US)
34AQI (US)
37AQI (US)
34AQI (US)
32AQI (US)
31AQI (US)
32AQI (US)
32AQI (US)
30AQI (US)
30AQI (US)
26AQI (US)
29AQI (US)
31AQI (US)
33AQI (US)
30AQI (US)
25AQI (US)
28AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
23AQI (US)
26AQI (US)
30AQI (US)
30AQI (US)
27AQI (US)
28AQI (US)
31AQI (US)
30AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
38AQI (US)
40AQI (US)
40AQI (US)
38AQI (US)
32AQI (US)
30AQI (US)
31AQI (US)
33AQI (US)
34AQI (US)
30AQI (US)
30AQI (US)
27AQI (US)
33AQI (US)
43AQI (US)
28AQI (US)
32AQI (US)
29AQI (US)
31AQI (US)
32AQI (US)
32AQI (US)
34AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
28AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
28AQI (US)
26AQI (US)
24AQI (US)
27AQI (US)
29AQI (US)
28AQI (US)
55AQI (US)
100AQI (US)
47AQI (US)
29AQI (US)
28AQI (US)
25AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
30AQI (US)
42AQI (US)
37AQI (US)
31AQI (US)
29AQI (US)
35AQI (US)
34AQI (US)
38AQI (US)
41AQI (US)
52AQI (US)
54AQI (US)
54AQI (US)
63AQI (US)
71AQI (US)
69AQI (US)
65AQI (US)
61AQI (US)
54AQI (US)
48AQI (US)
62AQI (US)
60AQI (US)
42AQI (US)
46AQI (US)
46AQI (US)
64AQI (US)
54AQI (US)
51AQI (US)
43AQI (US)
52AQI (US)
45AQI (US)
65AQI (US)
62AQI (US)
59AQI (US)
56AQI (US)
48AQI (US)
45AQI (US)
47AQI (US)
49AQI (US)
54AQI (US)
52AQI (US)
54AQI (US)
52AQI (US)
50AQI (US)
54AQI (US)
48AQI (US)
62AQI (US)
69AQI (US)
49AQI (US)
46AQI (US)
44AQI (US)
63AQI (US)
52AQI (US)
51AQI (US)
46AQI (US)
52AQI (US)
48AQI (US)
48AQI (US)
49AQI (US)
43AQI (US)
50AQI (US)
48AQI (US)
50AQI (US)
53AQI (US)
50AQI (US)
51AQI (US)
58AQI (US)
46AQI (US)
42AQI (US)
49AQI (US)
50AQI (US)
48AQI (US)
58AQI (US)
59AQI (US)
46AQI (US)
48AQI (US)
51AQI (US)
60AQI (US)
48AQI (US)
50AQI (US)
51AQI (US)
34AQI (US)
43AQI (US)
37AQI (US)
30AQI (US)
31AQI (US)
30AQI (US)
44AQI (US)
53AQI (US)
50AQI (US)
No. of days
202639AQI (US)
Highest AQI (US) recorded in
August53AQI (US)
Lowest AQI (US) recorded in
June30AQI (US)
202534AQI (US)
Highest AQI (US) recorded in
September58AQI (US)
Lowest AQI (US) recorded in
April19AQI (US)
202429AQI (US)
Highest AQI (US) recorded in
July51AQI (US)
Lowest AQI (US) recorded in
April13AQI (US)
202339AQI (US)
Highest AQI (US) recorded in
May75AQI (US)
Lowest AQI (US) recorded in
December16AQI (US)
202222AQI (US)
Highest AQI (US) recorded in
September35AQI (US)
Lowest AQI (US) recorded in
April14AQI (US)
202125AQI (US)
Highest AQI (US) recorded in
July53AQI (US)
Lowest AQI (US) recorded in
September14AQI (US)
202022AQI (US)
Highest AQI (US) recorded in
March26AQI (US)
Lowest AQI (US) recorded in
July17AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Stony Plain's annual 2026 AQI (US) (39) shows an average percentage change of 43.2% (worsened AQI (US)) compared to previous years: 2020 (22), 2021 (25), 2022 (22), 2023 (39), 2024 (29), 2025 (34).