Calgary, Alberta, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Calgary, Alberta, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (21st July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 68 of Moderate air quality on the same day.
Day & Night AQI Trend: 20th Jul - 21st Jul 2026
Calgary, Alberta, Canada
5 AM20th Jul 2026
9 PM
4 AM21st Jul 2026
53AQI
42AQI
81AQI
45AQI
In the last 24 hours,
Calgary's AQI reached its highest point of 81 at 4 AM during the Night, while the lowest point, 42, was recorded at 8 PM during the Day between 20th Jul and 21st Jul 2026.
Day & Night AQI Trend : Jun - Jul 2026
Calgary, Alberta, Canada
9°C7/14°C
15°C6/24°C
17°C8/24°C
18°C10/26°C
18°C11/24°C
15°C12/19°C
14°C11/16°C
16°C13/23°C
16°C11/22°C
16°C11/23°C
17°C10/23°C
18°C12/24°C
19°C12/25°C
15°C11/19°C
15°C7/23°C
19°C10/29°C
21°C15/29°C
20°C14/28°C
22°C14/30°C
22°C13/31°C
21°C12/30°C
21°C14/31°C
21°C13/30°C
21°C14/30°C
23°C14/32°C
24°C16/34°C
25°C17/34°C
21°C13/28°C
18°C13/24°C
20°C13/29°C
35AQI
33AQI
34AQI
31AQI
2026 Days Vs Air Quality
Calgary, Alberta, Canada
96%
192
3%
6
0.5%
1
Total number of days with different AQI categories in last 203 days in 2026 (162 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2026, 96% of 203 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Calgary, Alberta, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
45AQI (US)
30AQI (US)
29AQI (US)
41AQI (US)
49AQI (US)
34AQI (US)
15AQI (US)
26AQI (US)
33AQI (US)
18AQI (US)
19AQI (US)
23AQI (US)
15AQI (US)
21AQI (US)
19AQI (US)
21AQI (US)
22AQI (US)
15AQI (US)
32AQI (US)
27AQI (US)
24AQI (US)
48AQI (US)
46AQI (US)
48AQI (US)
47AQI (US)
53AQI (US)
45AQI (US)
41AQI (US)
47AQI (US)
41AQI (US)
38AQI (US)
44AQI (US)
46AQI (US)
48AQI (US)
45AQI (US)
46AQI (US)
40AQI (US)
38AQI (US)
40AQI (US)
42AQI (US)
31AQI (US)
26AQI (US)
23AQI (US)
33AQI (US)
41AQI (US)
31AQI (US)
36AQI (US)
39AQI (US)
32AQI (US)
33AQI (US)
39AQI (US)
49AQI (US)
42AQI (US)
49AQI (US)
45AQI (US)
35AQI (US)
28AQI (US)
30AQI (US)
33AQI (US)
30AQI (US)
44AQI (US)
46AQI (US)
45AQI (US)
42AQI (US)
24AQI (US)
33AQI (US)
38AQI (US)
32AQI (US)
23AQI (US)
33AQI (US)
36AQI (US)
34AQI (US)
32AQI (US)
22AQI (US)
25AQI (US)
34AQI (US)
32AQI (US)
31AQI (US)
35AQI (US)
29AQI (US)
26AQI (US)
24AQI (US)
35AQI (US)
32AQI (US)
31AQI (US)
31AQI (US)
28AQI (US)
35AQI (US)
31AQI (US)
30AQI (US)
33AQI (US)
26AQI (US)
31AQI (US)
22AQI (US)
25AQI (US)
22AQI (US)
22AQI (US)
19AQI (US)
23AQI (US)
25AQI (US)
29AQI (US)
30AQI (US)
38AQI (US)
30AQI (US)
30AQI (US)
20AQI (US)
16AQI (US)
18AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
20AQI (US)
26AQI (US)
23AQI (US)
20AQI (US)
25AQI (US)
25AQI (US)
20AQI (US)
19AQI (US)
20AQI (US)
26AQI (US)
26AQI (US)
22AQI (US)
19AQI (US)
23AQI (US)
23AQI (US)
21AQI (US)
20AQI (US)
21AQI (US)
21AQI (US)
36AQI (US)
37AQI (US)
38AQI (US)
26AQI (US)
32AQI (US)
30AQI (US)
21AQI (US)
28AQI (US)
22AQI (US)
23AQI (US)
18AQI (US)
23AQI (US)
25AQI (US)
31AQI (US)
21AQI (US)
25AQI (US)
29AQI (US)
30AQI (US)
26AQI (US)
27AQI (US)
35AQI (US)
18AQI (US)
18AQI (US)
22AQI (US)
24AQI (US)
19AQI (US)
27AQI (US)
21AQI (US)
24AQI (US)
22AQI (US)
17AQI (US)
19AQI (US)
17AQI (US)
18AQI (US)
15AQI (US)
17AQI (US)
18AQI (US)
15AQI (US)
14AQI (US)
20AQI (US)
19AQI (US)
17AQI (US)
18AQI (US)
25AQI (US)
27AQI (US)
62AQI (US)
105AQI (US)
69AQI (US)
24AQI (US)
18AQI (US)
16AQI (US)
17AQI (US)
15AQI (US)
19AQI (US)
24AQI (US)
47AQI (US)
32AQI (US)
19AQI (US)
23AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
35AQI (US)
46AQI (US)
60AQI (US)
58AQI (US)
49AQI (US)
68AQI (US)
33AQI (US)
38AQI (US)
32AQI (US)
25AQI (US)
25AQI (US)
25AQI (US)
34AQI (US)
No. of days
202630AQI (US)
Highest AQI (US) recorded in
February38AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
September59AQI (US)
Lowest AQI (US) recorded in
May27AQI (US)
202436AQI (US)
Highest AQI (US) recorded in
August53AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202343AQI (US)
Highest AQI (US) recorded in
May62AQI (US)
Lowest AQI (US) recorded in
April24AQI (US)
202228AQI (US)
Highest AQI (US) recorded in
September53AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202130AQI (US)
Highest AQI (US) recorded in
July70AQI (US)
Lowest AQI (US) recorded in
May18AQI (US)
202024AQI (US)
Highest AQI (US) recorded in
September32AQI (US)
Lowest AQI (US) recorded in
June16AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Calgary's annual 2026 AQI (US) (30) shows an average percentage change of -4.8% (improved AQI (US)) compared to previous years: 2020 (24), 2021 (30), 2022 (28), 2023 (43), 2024 (36), 2025 (35).