Calgary Varsity, Calgary, Alberta, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Calgary Varsity, Calgary, Alberta, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (10th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Oct - 11th Oct 2025
Calgary Varsity, Calgary, Alberta, Canada
7 AM10th Oct 2025
7 PM
6 AM11th Oct 2025
74AQI
37AQI
70AQI
37AQI
In the last 24 hours,
Calgary Varsity's AQI reached its highest point of 74 at 11 AM during the Day, while the lowest point, 37, was recorded at 6 AM during the Night between 10th Oct and 11th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Calgary Varsity, Calgary, Alberta, Canada
--°C/°C
20°C12/29°C
20°C12/28°C
19°C11/29°C
18°C14/21°C
18°C11/27°C
18°C10/27°C
17°C10/24°C
17°C9/24°C
20°C11/30°C
18°C13/25°C
15°C8/23°C
21°C14/31°C
15°C8/20°C
14°C4/27°C
13°C6/20°C
15°C8/23°C
11°C5/16°C
16°C6/29°C
16°C12/23°C
12°C7/19°C
13°C8/20°C
13°C7/22°C
8°C3/12°C
5°C0/12°C
7°C2/14°C
15°C6/25°C
10°C4/15°C
8°C0/18°C
10°C4/20°C
10°C2/19°C
47AQI
42AQI
49AQI
45AQI
2025 Days Vs Air Quality
Calgary Varsity, Calgary, Alberta, Canada
85%
240
15%
42
0.3%
1
Total number of days with different AQI categories in last 285 days in 2025 (80 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 285 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
Calgary Varsity, Calgary, Alberta, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
48AQI
54AQI
57AQI
34AQI
50AQI
52AQI
35AQI
27AQI
31AQI
33AQI
26AQI
32AQI
36AQI
31AQI
33AQI
31AQI
28AQI
31AQI
46AQI
47AQI
33AQI
33AQI
34AQI
30AQI
31AQI
36AQI
31AQI
34AQI
37AQI
39AQI
50AQI
45AQI
32AQI
37AQI
35AQI
31AQI
28AQI
41AQI
42AQI
39AQI
32AQI
33AQI
35AQI
54AQI
30AQI
22AQI
54AQI
43AQI
24AQI
31AQI
28AQI
20AQI
20AQI
16AQI
15AQI
21AQI
17AQI
17AQI
21AQI
27AQI
28AQI
21AQI
22AQI
24AQI
28AQI
17AQI
13AQI
23AQI
18AQI
16AQI
18AQI
30AQI
31AQI
35AQI
35AQI
38AQI
46AQI
35AQI
32AQI
29AQI
22AQI
22AQI
24AQI
20AQI
23AQI
22AQI
25AQI
22AQI
27AQI
25AQI
33AQI
27AQI
24AQI
24AQI
24AQI
22AQI
30AQI
16AQI
22AQI
27AQI
26AQI
27AQI
23AQI
28AQI
27AQI
21AQI
19AQI
21AQI
22AQI
20AQI
24AQI
15AQI
21AQI
32AQI
32AQI
30AQI
29AQI
28AQI
17AQI
17AQI
24AQI
26AQI
38AQI
22AQI
16AQI
23AQI
27AQI
24AQI
24AQI
30AQI
25AQI
29AQI
23AQI
29AQI
20AQI
33AQI
31AQI
32AQI
21AQI
16AQI
15AQI
21AQI
23AQI
24AQI
27AQI
26AQI
18AQI
22AQI
34AQI
26AQI
25AQI
18AQI
19AQI
24AQI
36AQI
33AQI
27AQI
37AQI
55AQI
55AQI
56AQI
57AQI
59AQI
51AQI
32AQI
24AQI
26AQI
34AQI
38AQI
33AQI
30AQI
23AQI
21AQI
33AQI
42AQI
45AQI
31AQI
27AQI
20AQI
17AQI
19AQI
25AQI
31AQI
24AQI
23AQI
23AQI
21AQI
22AQI
26AQI
28AQI
28AQI
22AQI
27AQI
23AQI
20AQI
31AQI
43AQI
47AQI
44AQI
32AQI
26AQI
31AQI
40AQI
44AQI
40AQI
30AQI
28AQI
42AQI
45AQI
37AQI
44AQI
49AQI
55AQI
51AQI
40AQI
37AQI
34AQI
31AQI
26AQI
21AQI
24AQI
28AQI
22AQI
31AQI
34AQI
25AQI
35AQI
46AQI
22AQI
28AQI
33AQI
42AQI
24AQI
28AQI
41AQI
47AQI
52AQI
55AQI
55AQI
54AQI
53AQI
52AQI
53AQI
59AQI
67AQI
89AQI
116AQI
77AQI
85AQI
92AQI
81AQI
68AQI
62AQI
60AQI
62AQI
45AQI
60AQI
52AQI
52AQI
56AQI
57AQI
57AQI
61AQI
63AQI
36AQI
26AQI
26AQI
40AQI
41AQI
25AQI
25AQI
34AQI
48AQI
49AQI
41AQI
45AQI
36AQI
28AQI
51AQI
48AQI
43AQI
54AQI
53AQI
37AQI
31AQI
26AQI
24AQI
25AQI
34AQI
32AQI
38AQI
57AQI
45AQI
No. of days
202534AQI
Highest AQI recorded in
September57AQI
Lowest AQI recorded in
April24AQI
202433AQI
Highest AQI recorded in
August52AQI
Lowest AQI recorded in
June20AQI
202337AQI
Highest AQI recorded in
August62AQI
Lowest AQI recorded in
April19AQI
202224AQI
Highest AQI recorded in
September47AQI
Lowest AQI recorded in
May16AQI
202127AQI
Highest AQI recorded in
July73AQI
Lowest AQI recorded in
November14AQI
202021AQI
Highest AQI recorded in
September29AQI
Lowest AQI recorded in
June12AQI
Most & Least Polluted Years Over the Last 6 Years
Calgary Varsity's annual 2025 AQI (34) shows an average percentage change of 25.8% (worsened AQI) compared to previous years: 2020 (21), 2021 (27), 2022 (24), 2023 (37), 2024 (33).