Yellowhead County, 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
Yellowhead County, Alberta, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (25th September):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 49 of Good air quality on the same day.
Day & Night AQI Trend: 24th Sep - 25th Sep 2026
Yellowhead County, Alberta, Canada
7 AM24th Sep 2026
8 PM
6 AM25th Sep 2026
54AQI
38AQI
54AQI
42AQI
In the last 24 hours,
Yellowhead County's AQI reached its highest point of 54 at 6 PM during the Day, while the lowest point, 38, was recorded at 11 AM during the Day between 24th Sep and 25th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Yellowhead County, Alberta, Canada
18°C12/26°C
13°C8/18°C
11°C7/18°C
12°C7/19°C
13°C6/21°C
16°C9/24°C
15°C10/23°C
9°C7/10°C
6°C4/7°C
6°C5/8°C
9°C3/16°C
11°C6/18°C
13°C8/19°C
13°C8/20°C
9°C6/14°C
4°C2/5°C
6°C0/13°C
9°C3/16°C
6°C6/8°C
7°C2/12°C
9°C3/18°C
11°C5/20°C
12°C6/19°C
13°C7/21°C
13°C7/21°C
14°C9/22°C
10°C4/15°C
8°C3/14°C
7°C3/11°C
6°C1/10°C
52AQI
48AQI
53AQI
48AQI
2026 Days Vs Air Quality
Yellowhead County, Alberta, Canada
80%
213
19%
50
0.7%
2
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
Yellowhead County, Alberta, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI (US)
46AQI (US)
30AQI (US)
40AQI (US)
41AQI (US)
43AQI (US)
42AQI (US)
47AQI (US)
42AQI (US)
16AQI (US)
15AQI (US)
17AQI (US)
29AQI (US)
22AQI (US)
38AQI (US)
47AQI (US)
33AQI (US)
17AQI (US)
28AQI (US)
18AQI (US)
13AQI (US)
48AQI (US)
54AQI (US)
55AQI (US)
52AQI (US)
46AQI (US)
36AQI (US)
31AQI (US)
36AQI (US)
39AQI (US)
38AQI (US)
34AQI (US)
39AQI (US)
30AQI (US)
32AQI (US)
43AQI (US)
33AQI (US)
38AQI (US)
27AQI (US)
33AQI (US)
53AQI (US)
49AQI (US)
51AQI (US)
39AQI (US)
34AQI (US)
22AQI (US)
46AQI (US)
44AQI (US)
38AQI (US)
34AQI (US)
32AQI (US)
38AQI (US)
37AQI (US)
33AQI (US)
42AQI (US)
28AQI (US)
29AQI (US)
28AQI (US)
30AQI (US)
37AQI (US)
55AQI (US)
48AQI (US)
46AQI (US)
38AQI (US)
54AQI (US)
37AQI (US)
33AQI (US)
41AQI (US)
36AQI (US)
35AQI (US)
37AQI (US)
36AQI (US)
26AQI (US)
45AQI (US)
32AQI (US)
34AQI (US)
28AQI (US)
31AQI (US)
35AQI (US)
31AQI (US)
28AQI (US)
59AQI (US)
48AQI (US)
34AQI (US)
29AQI (US)
54AQI (US)
37AQI (US)
43AQI (US)
31AQI (US)
36AQI (US)
48AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
25AQI (US)
29AQI (US)
26AQI (US)
28AQI (US)
30AQI (US)
36AQI (US)
35AQI (US)
28AQI (US)
30AQI (US)
26AQI (US)
28AQI (US)
24AQI (US)
27AQI (US)
17AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
21AQI (US)
23AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
28AQI (US)
23AQI (US)
22AQI (US)
19AQI (US)
21AQI (US)
33AQI (US)
24AQI (US)
24AQI (US)
23AQI (US)
26AQI (US)
24AQI (US)
28AQI (US)
20AQI (US)
20AQI (US)
22AQI (US)
26AQI (US)
40AQI (US)
36AQI (US)
32AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
23AQI (US)
23AQI (US)
22AQI (US)
29AQI (US)
17AQI (US)
27AQI (US)
41AQI (US)
25AQI (US)
30AQI (US)
29AQI (US)
23AQI (US)
19AQI (US)
25AQI (US)
32AQI (US)
22AQI (US)
23AQI (US)
24AQI (US)
20AQI (US)
20AQI (US)
19AQI (US)
19AQI (US)
20AQI (US)
20AQI (US)
18AQI (US)
23AQI (US)
25AQI (US)
19AQI (US)
19AQI (US)
17AQI (US)
25AQI (US)
18AQI (US)
16AQI (US)
21AQI (US)
25AQI (US)
26AQI (US)
20AQI (US)
21AQI (US)
23AQI (US)
49AQI (US)
102AQI (US)
50AQI (US)
22AQI (US)
20AQI (US)
21AQI (US)
22AQI (US)
20AQI (US)
22AQI (US)
44AQI (US)
47AQI (US)
32AQI (US)
25AQI (US)
23AQI (US)
30AQI (US)
35AQI (US)
34AQI (US)
43AQI (US)
49AQI (US)
58AQI (US)
50AQI (US)
64AQI (US)
65AQI (US)
79AQI (US)
77AQI (US)
84AQI (US)
68AQI (US)
52AQI (US)
64AQI (US)
66AQI (US)
60AQI (US)
60AQI (US)
87AQI (US)
98AQI (US)
69AQI (US)
60AQI (US)
47AQI (US)
55AQI (US)
98AQI (US)
103AQI (US)
93AQI (US)
78AQI (US)
94AQI (US)
80AQI (US)
45AQI (US)
51AQI (US)
64AQI (US)
52AQI (US)
53AQI (US)
73AQI (US)
51AQI (US)
45AQI (US)
67AQI (US)
65AQI (US)
80AQI (US)
60AQI (US)
48AQI (US)
48AQI (US)
54AQI (US)
58AQI (US)
56AQI (US)
63AQI (US)
48AQI (US)
44AQI (US)
48AQI (US)
48AQI (US)
46AQI (US)
38AQI (US)
47AQI (US)
48AQI (US)
46AQI (US)
50AQI (US)
49AQI (US)
48AQI (US)
49AQI (US)
47AQI (US)
50AQI (US)
53AQI (US)
50AQI (US)
51AQI (US)
51AQI (US)
49AQI (US)
46AQI (US)
49AQI (US)
49AQI (US)
56AQI (US)
55AQI (US)
49AQI (US)
49AQI (US)
35AQI (US)
36AQI (US)
39AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
48AQI (US)
65AQI (US)
49AQI (US)
No. of days
202639AQI (US)
Highest AQI (US) recorded in
August65AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
September54AQI (US)
Lowest AQI (US) recorded in
May23AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Yellowhead County's annual 2026 AQI (US) (39) shows an average percentage change of 18.1% (worsened AQI (US)) compared to previous years: 2025 (33).