Caroline, Olds, 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
Caroline, Olds, Alberta, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (30th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 51 of Moderate air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 29th Sep - 30th Sep 2026
Caroline, Olds, Alberta, Canada
7 AM29th Sep 2026
7 PM
6 AM30th Sep 2026
69AQI
23AQI
58AQI
20AQI
In the last 24 hours,
Caroline's AQI reached its highest point of 69 at 10 AM during the Day, while the lowest point, 20, was recorded at 8 PM during the Night between 29th Sep and 30th Sep 2026.
Day & Night AQI Trend : Sep 2026
Caroline, Olds, Alberta, Canada
16°C8/26°C
16°C11/23°C
11°C8/14°C
9°C5/14°C
8°C5/13°C
10°C4/16°C
10°C8/13°C
12°C6/19°C
15°C8/23°C
9°C5/14°C
5°C5/7°C
6°C2/12°C
8°C2/16°C
8°C6/11°C
7°C4/11°C
10°C3/19°C
12°C6/21°C
12°C6/19°C
13°C7/21°C
14°C8/23°C
16°C9/26°C
11°C7/16°C
10°C6/16°C
8°C3/15°C
12°C6/23°C
3°C1/5°C
5°C-1/13°C
8°C1/17°C
8°C4/13°C
5°C1/11°C
51AQI
46AQI
48AQI
41AQI
2026 Days Vs Air Quality
Caroline, Olds, Alberta, Canada
83%
223
16%
44
1%
3
Total number of days with different AQI categories in last 273 days in 2026 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% 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
Caroline, Olds, Alberta, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI (US)
39AQI (US)
43AQI (US)
52AQI (US)
50AQI (US)
21AQI (US)
23AQI (US)
18AQI (US)
13AQI (US)
18AQI (US)
23AQI (US)
12AQI (US)
19AQI (US)
23AQI (US)
11AQI (US)
10AQI (US)
10AQI (US)
11AQI (US)
13AQI (US)
14AQI (US)
13AQI (US)
46AQI (US)
50AQI (US)
55AQI (US)
50AQI (US)
51AQI (US)
47AQI (US)
43AQI (US)
51AQI (US)
45AQI (US)
42AQI (US)
47AQI (US)
48AQI (US)
46AQI (US)
49AQI (US)
49AQI (US)
47AQI (US)
41AQI (US)
43AQI (US)
43AQI (US)
32AQI (US)
32AQI (US)
32AQI (US)
43AQI (US)
46AQI (US)
38AQI (US)
40AQI (US)
36AQI (US)
30AQI (US)
36AQI (US)
40AQI (US)
49AQI (US)
41AQI (US)
47AQI (US)
44AQI (US)
37AQI (US)
31AQI (US)
32AQI (US)
35AQI (US)
39AQI (US)
44AQI (US)
48AQI (US)
42AQI (US)
43AQI (US)
33AQI (US)
38AQI (US)
40AQI (US)
40AQI (US)
30AQI (US)
32AQI (US)
39AQI (US)
35AQI (US)
40AQI (US)
31AQI (US)
34AQI (US)
34AQI (US)
33AQI (US)
33AQI (US)
35AQI (US)
33AQI (US)
28AQI (US)
25AQI (US)
39AQI (US)
31AQI (US)
33AQI (US)
30AQI (US)
24AQI (US)
34AQI (US)
30AQI (US)
30AQI (US)
33AQI (US)
32AQI (US)
30AQI (US)
24AQI (US)
25AQI (US)
24AQI (US)
29AQI (US)
24AQI (US)
27AQI (US)
24AQI (US)
29AQI (US)
31AQI (US)
37AQI (US)
35AQI (US)
32AQI (US)
27AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
23AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
28AQI (US)
22AQI (US)
21AQI (US)
27AQI (US)
24AQI (US)
25AQI (US)
20AQI (US)
20AQI (US)
22AQI (US)
30AQI (US)
18AQI (US)
20AQI (US)
25AQI (US)
30AQI (US)
29AQI (US)
23AQI (US)
22AQI (US)
22AQI (US)
38AQI (US)
39AQI (US)
39AQI (US)
33AQI (US)
33AQI (US)
30AQI (US)
28AQI (US)
30AQI (US)
27AQI (US)
26AQI (US)
21AQI (US)
17AQI (US)
23AQI (US)
30AQI (US)
23AQI (US)
26AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
31AQI (US)
34AQI (US)
17AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
23AQI (US)
27AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
20AQI (US)
22AQI (US)
22AQI (US)
26AQI (US)
17AQI (US)
19AQI (US)
19AQI (US)
19AQI (US)
17AQI (US)
21AQI (US)
18AQI (US)
18AQI (US)
24AQI (US)
27AQI (US)
28AQI (US)
61AQI (US)
104AQI (US)
63AQI (US)
26AQI (US)
24AQI (US)
21AQI (US)
17AQI (US)
17AQI (US)
20AQI (US)
24AQI (US)
45AQI (US)
31AQI (US)
20AQI (US)
24AQI (US)
34AQI (US)
27AQI (US)
28AQI (US)
31AQI (US)
44AQI (US)
58AQI (US)
55AQI (US)
52AQI (US)
68AQI (US)
71AQI (US)
120AQI (US)
133AQI (US)
77AQI (US)
60AQI (US)
56AQI (US)
51AQI (US)
45AQI (US)
53AQI (US)
88AQI (US)
100AQI (US)
92AQI (US)
48AQI (US)
45AQI (US)
51AQI (US)
83AQI (US)
65AQI (US)
61AQI (US)
79AQI (US)
70AQI (US)
74AQI (US)
56AQI (US)
46AQI (US)
49AQI (US)
49AQI (US)
52AQI (US)
58AQI (US)
62AQI (US)
64AQI (US)
72AQI (US)
61AQI (US)
70AQI (US)
59AQI (US)
45AQI (US)
43AQI (US)
45AQI (US)
52AQI (US)
70AQI (US)
67AQI (US)
46AQI (US)
50AQI (US)
47AQI (US)
50AQI (US)
47AQI (US)
43AQI (US)
45AQI (US)
47AQI (US)
44AQI (US)
57AQI (US)
53AQI (US)
48AQI (US)
55AQI (US)
44AQI (US)
41AQI (US)
50AQI (US)
48AQI (US)
49AQI (US)
53AQI (US)
48AQI (US)
42AQI (US)
44AQI (US)
47AQI (US)
47AQI (US)
49AQI (US)
47AQI (US)
54AQI (US)
30AQI (US)
41AQI (US)
45AQI (US)
47AQI (US)
51AQI (US)
30AQI (US)
41AQI (US)
35AQI (US)
28AQI (US)
27AQI (US)
28AQI (US)
48AQI (US)
61AQI (US)
47AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
August61AQI (US)
Lowest AQI (US) recorded in
May27AQI (US)
202529AQI (US)
Highest AQI (US) recorded in
September54AQI (US)
Lowest AQI (US) recorded in
April19AQI (US)
202424AQI (US)
Highest AQI (US) recorded in
July45AQI (US)
Lowest AQI (US) recorded in
April9AQI (US)
202330AQI (US)
Highest AQI (US) recorded in
May65AQI (US)
Lowest AQI (US) recorded in
December11AQI (US)
202219AQI (US)
Highest AQI (US) recorded in
September36AQI (US)
Lowest AQI (US) recorded in
November11AQI (US)
202124AQI (US)
Highest AQI (US) recorded in
July70AQI (US)
Lowest AQI (US) recorded in
November8AQI (US)
202018AQI (US)
Highest AQI (US) recorded in
September29AQI (US)
Lowest AQI (US) recorded in
November13AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Caroline's annual 2026 AQI (US) (38) shows an average percentage change of 64.2% (worsened AQI (US)) compared to previous years: 2020 (18), 2021 (24), 2022 (19), 2023 (30), 2024 (24), 2025 (29).