Cold Lake South, Cold Lake, 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
Cold Lake South, Cold Lake, Alberta, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (29th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 22 of Good air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Cold Lake South, Cold Lake, Alberta, Canada
6 AM29th Sep 2025
7 PM
5 AM30th Sep 2025
33AQI
10AQI
40AQI
11AQI
In the last 24 hours,
Cold Lake South's AQI reached its highest point of 40 at 11 PM during the Night, while the lowest point, 10, was recorded at 7 AM during the Day between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Cold Lake South, Cold Lake, Alberta, Canada
19°C12/29°C
17°C15/21°C
13°C5/20°C
16°C7/25°C
13°C9/18°C
11°C1/19°C
13°C1/24°C
15°C5/26°C
17°C9/25°C
18°C7/29°C
19°C12/28°C
19°C12/26°C
18°C9/27°C
19°C9/27°C
16°C11/21°C
18°C13/26°C
14°C6/20°C
14°C4/24°C
14°C8/24°C
14°C7/23°C
17°C8/27°C
17°C8/26°C
15°C9/21°C
14°C5/23°C
12°C7/18°C
9°C-1/18°C
11°C6/17°C
11°C5/19°C
12°C4/17°C
14°C5/24°C
--°C/°C
50AQI
50AQI
54AQI
51AQI
2025 Days Vs Air Quality
Cold Lake South, Cold Lake, Alberta, Canada
86%
235
14%
37
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 273 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
Cold Lake South, Cold Lake, Alberta, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
30AQI
38AQI
38AQI
32AQI
36AQI
57AQI
35AQI
24AQI
37AQI
26AQI
36AQI
48AQI
30AQI
18AQI
22AQI
17AQI
18AQI
22AQI
27AQI
29AQI
22AQI
22AQI
18AQI
29AQI
26AQI
18AQI
20AQI
20AQI
26AQI
27AQI
19AQI
20AQI
27AQI
27AQI
30AQI
25AQI
27AQI
30AQI
27AQI
26AQI
32AQI
26AQI
29AQI
22AQI
28AQI
23AQI
27AQI
25AQI
24AQI
33AQI
54AQI
47AQI
41AQI
22AQI
34AQI
25AQI
20AQI
19AQI
27AQI
24AQI
19AQI
21AQI
28AQI
29AQI
19AQI
18AQI
19AQI
19AQI
22AQI
18AQI
18AQI
16AQI
19AQI
17AQI
23AQI
27AQI
26AQI
21AQI
19AQI
28AQI
17AQI
17AQI
17AQI
19AQI
17AQI
17AQI
18AQI
25AQI
27AQI
31AQI
26AQI
17AQI
20AQI
25AQI
25AQI
22AQI
29AQI
19AQI
18AQI
21AQI
22AQI
19AQI
21AQI
22AQI
19AQI
18AQI
19AQI
19AQI
16AQI
19AQI
24AQI
18AQI
18AQI
22AQI
27AQI
19AQI
22AQI
19AQI
14AQI
17AQI
25AQI
32AQI
25AQI
13AQI
22AQI
21AQI
22AQI
17AQI
21AQI
22AQI
32AQI
31AQI
33AQI
24AQI
17AQI
21AQI
23AQI
19AQI
16AQI
26AQI
23AQI
30AQI
24AQI
20AQI
17AQI
20AQI
23AQI
30AQI
26AQI
22AQI
21AQI
31AQI
33AQI
26AQI
39AQI
32AQI
38AQI
23AQI
47AQI
53AQI
50AQI
52AQI
60AQI
62AQI
50AQI
47AQI
39AQI
37AQI
30AQI
32AQI
26AQI
25AQI
28AQI
35AQI
35AQI
31AQI
27AQI
23AQI
19AQI
16AQI
17AQI
16AQI
18AQI
16AQI
20AQI
22AQI
21AQI
22AQI
23AQI
21AQI
27AQI
28AQI
24AQI
28AQI
33AQI
42AQI
54AQI
55AQI
57AQI
61AQI
62AQI
60AQI
53AQI
53AQI
46AQI
41AQI
40AQI
50AQI
53AQI
51AQI
49AQI
55AQI
53AQI
43AQI
37AQI
43AQI
39AQI
34AQI
44AQI
48AQI
43AQI
31AQI
29AQI
25AQI
24AQI
22AQI
18AQI
19AQI
20AQI
20AQI
27AQI
20AQI
28AQI
33AQI
36AQI
39AQI
45AQI
55AQI
57AQI
60AQI
57AQI
49AQI
59AQI
77AQI
94AQI
83AQI
50AQI
50AQI
55AQI
79AQI
77AQI
75AQI
68AQI
73AQI
68AQI
45AQI
34AQI
44AQI
55AQI
51AQI
50AQI
52AQI
53AQI
47AQI
33AQI
25AQI
24AQI
27AQI
18AQI
15AQI
22AQI
28AQI
28AQI
21AQI
21AQI
23AQI
36AQI
38AQI
37AQI
52AQI
No. of days
202531AQI
Highest AQI recorded in
September52AQI
Lowest AQI recorded in
April21AQI
202434AQI
Highest AQI recorded in
July85AQI
Lowest AQI recorded in
April15AQI
202346AQI
Highest AQI recorded in
September84AQI
Lowest AQI recorded in
February21AQI
202226AQI
Highest AQI recorded in
September38AQI
Lowest AQI recorded in
April16AQI
202129AQI
Highest AQI recorded in
July63AQI
Lowest AQI recorded in
September17AQI
202020AQI
Highest AQI recorded in
November30AQI
Lowest AQI recorded in
April13AQI
Most & Least Polluted Years Over the Last 6 Years
Cold Lake South's annual 2025 AQI (31) shows an average percentage change of 8.8% (worsened AQI) compared to previous years: 2020 (20), 2021 (29), 2022 (26), 2023 (46), 2024 (34).