Banff, 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
Banff, Alberta, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (25th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 54 of Moderate air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 24th Sep - 25th Sep 2026
Banff, Alberta, Canada
7 AM24th Sep 2026
8 PM
6 AM25th Sep 2026
54AQI
42AQI
103AQI
42AQI
In the last 24 hours,
Banff's AQI reached its highest point of 103 at 10 PM during the Night, while the lowest point, 42, was recorded at 12 AM during the Night between 24th Sep and 25th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Banff, Alberta, Canada
15°C8/21°C
12°C6/15°C
10°C3/14°C
5°C2/10°C
10°C3/18°C
13°C7/20°C
14°C8/17°C
5°C3/11°C
5°C1/10°C
7°C3/11°C
9°C3/14°C
11°C5/16°C
11°C6/16°C
12°C6/16°C
8°C3/12°C
8°C2/12°C
7°C1/12°C
7°C2/10°C
4°C1/7°C
4°C1/9°C
8°C2/13°C
10°C3/14°C
12°C5/17°C
12°C7/19°C
13°C9/20°C
13°C8/20°C
13°C6/18°C
10°C4/12°C
9°C2/14°C
7°C0/11°C
51AQI
45AQI
52AQI
47AQI
2026 Days Vs Air Quality
Banff, Alberta, Canada
80%
211
16%
42
3%
8
2%
4
Total number of days with different AQI categories in last 268 days in 2026 (97 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2026, 80% of 268 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
Banff, Alberta, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI (US)
29AQI (US)
38AQI (US)
42AQI (US)
33AQI (US)
21AQI (US)
25AQI (US)
37AQI (US)
27AQI (US)
14AQI (US)
21AQI (US)
18AQI (US)
26AQI (US)
23AQI (US)
23AQI (US)
22AQI (US)
18AQI (US)
16AQI (US)
21AQI (US)
17AQI (US)
14AQI (US)
36AQI (US)
38AQI (US)
40AQI (US)
42AQI (US)
48AQI (US)
34AQI (US)
30AQI (US)
39AQI (US)
39AQI (US)
27AQI (US)
38AQI (US)
39AQI (US)
30AQI (US)
28AQI (US)
38AQI (US)
31AQI (US)
34AQI (US)
25AQI (US)
36AQI (US)
54AQI (US)
50AQI (US)
56AQI (US)
40AQI (US)
26AQI (US)
24AQI (US)
45AQI (US)
40AQI (US)
26AQI (US)
30AQI (US)
31AQI (US)
40AQI (US)
33AQI (US)
33AQI (US)
39AQI (US)
29AQI (US)
21AQI (US)
21AQI (US)
22AQI (US)
35AQI (US)
59AQI (US)
48AQI (US)
38AQI (US)
35AQI (US)
55AQI (US)
36AQI (US)
35AQI (US)
40AQI (US)
37AQI (US)
30AQI (US)
32AQI (US)
34AQI (US)
29AQI (US)
42AQI (US)
32AQI (US)
21AQI (US)
28AQI (US)
33AQI (US)
36AQI (US)
32AQI (US)
30AQI (US)
61AQI (US)
47AQI (US)
30AQI (US)
30AQI (US)
55AQI (US)
38AQI (US)
43AQI (US)
28AQI (US)
38AQI (US)
48AQI (US)
27AQI (US)
28AQI (US)
30AQI (US)
24AQI (US)
30AQI (US)
25AQI (US)
27AQI (US)
31AQI (US)
37AQI (US)
35AQI (US)
33AQI (US)
32AQI (US)
23AQI (US)
28AQI (US)
20AQI (US)
26AQI (US)
17AQI (US)
24AQI (US)
23AQI (US)
24AQI (US)
21AQI (US)
17AQI (US)
17AQI (US)
22AQI (US)
26AQI (US)
27AQI (US)
25AQI (US)
23AQI (US)
18AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
28AQI (US)
22AQI (US)
19AQI (US)
18AQI (US)
20AQI (US)
20AQI (US)
25AQI (US)
39AQI (US)
31AQI (US)
26AQI (US)
25AQI (US)
25AQI (US)
27AQI (US)
23AQI (US)
23AQI (US)
21AQI (US)
28AQI (US)
17AQI (US)
27AQI (US)
42AQI (US)
23AQI (US)
24AQI (US)
25AQI (US)
14AQI (US)
18AQI (US)
25AQI (US)
31AQI (US)
15AQI (US)
23AQI (US)
21AQI (US)
16AQI (US)
19AQI (US)
17AQI (US)
18AQI (US)
19AQI (US)
18AQI (US)
16AQI (US)
24AQI (US)
25AQI (US)
17AQI (US)
17AQI (US)
17AQI (US)
25AQI (US)
14AQI (US)
15AQI (US)
21AQI (US)
25AQI (US)
27AQI (US)
17AQI (US)
20AQI (US)
23AQI (US)
53AQI (US)
103AQI (US)
40AQI (US)
20AQI (US)
15AQI (US)
15AQI (US)
16AQI (US)
15AQI (US)
22AQI (US)
47AQI (US)
47AQI (US)
32AQI (US)
20AQI (US)
19AQI (US)
28AQI (US)
34AQI (US)
37AQI (US)
41AQI (US)
51AQI (US)
61AQI (US)
53AQI (US)
61AQI (US)
58AQI (US)
87AQI (US)
104AQI (US)
153AQI (US)
67AQI (US)
65AQI (US)
70AQI (US)
70AQI (US)
54AQI (US)
72AQI (US)
152AQI (US)
141AQI (US)
91AQI (US)
64AQI (US)
52AQI (US)
52AQI (US)
112AQI (US)
164AQI (US)
169AQI (US)
147AQI (US)
131AQI (US)
74AQI (US)
81AQI (US)
54AQI (US)
42AQI (US)
47AQI (US)
68AQI (US)
71AQI (US)
55AQI (US)
49AQI (US)
81AQI (US)
111AQI (US)
131AQI (US)
56AQI (US)
45AQI (US)
45AQI (US)
52AQI (US)
62AQI (US)
54AQI (US)
61AQI (US)
45AQI (US)
44AQI (US)
49AQI (US)
49AQI (US)
45AQI (US)
45AQI (US)
46AQI (US)
44AQI (US)
43AQI (US)
47AQI (US)
47AQI (US)
47AQI (US)
48AQI (US)
51AQI (US)
45AQI (US)
51AQI (US)
45AQI (US)
51AQI (US)
49AQI (US)
46AQI (US)
48AQI (US)
45AQI (US)
47AQI (US)
56AQI (US)
56AQI (US)
53AQI (US)
54AQI (US)
29AQI (US)
34AQI (US)
38AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
52AQI (US)
79AQI (US)
48AQI (US)
No. of days
202640AQI (US)
Highest AQI (US) recorded in
August79AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202536AQI (US)
Highest AQI (US) recorded in
September60AQI (US)
Lowest AQI (US) recorded in
May22AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
July59AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202343AQI (US)
Highest AQI (US) recorded in
August79AQI (US)
Lowest AQI (US) recorded in
April25AQI (US)
202239AQI (US)
Highest AQI (US) recorded in
February57AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202142AQI (US)
Highest AQI (US) recorded in
July104AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202029AQI (US)
Highest AQI (US) recorded in
September48AQI (US)
Lowest AQI (US) recorded in
June12AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Banff's annual 2026 AQI (US) (40) shows an average percentage change of 9.02% (worsened AQI (US)) compared to previous years: 2020 (29), 2021 (42), 2022 (39), 2023 (43), 2024 (35), 2025 (36).