Molson, Montreal, Quebec, 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
Molson, Montreal, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (1st October):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 27 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 1st Oct - 2nd Oct 2026
Molson, Montreal, Quebec, Canada
6 AM1st Oct 2026
7 PM
5 AM2nd Oct 2026
38AQI
25AQI
52AQI
25AQI
In the last 24 hours,
Molson's AQI reached its highest point of 52 at 5 AM during the Night, while the lowest point, 25, was recorded at 2 AM during the Night between 1st Oct and 2nd Oct 2026.
Day & Night AQI Trend : Sep - Oct 2026
Molson, Montreal, Quebec, Canada
22°C18/27°C
20°C17/24°C
17°C14/21°C
17°C12/23°C
19°C13/28°C
18°C16/24°C
17°C13/21°C
19°C12/24°C
14°C9/20°C
16°C10/22°C
19°C17/22°C
15°C12/18°C
14°C9/18°C
19°C16/25°C
18°C13/23°C
16°C10/20°C
12°C7/17°C
13°C9/20°C
12°C10/16°C
12°C7/18°C
13°C7/19°C
14°C8/21°C
16°C10/23°C
17°C13/22°C
16°C13/20°C
12°C11/15°C
14°C11/18°C
15°C11/20°C
18°C14/22°C
17°C12/19°C
33AQI
27AQI
35AQI
28AQI
2026 Days Vs Air Quality
Molson, Montreal, Quebec, Canada
95%
257
5%
14
Total number of days with different AQI categories in last 275 days in 2026 (90 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 275 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
Molson, Montreal, Quebec, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
16AQI (US)
26AQI (US)
18AQI (US)
30AQI (US)
38AQI (US)
61AQI (US)
58AQI (US)
63AQI (US)
43AQI (US)
16AQI (US)
18AQI (US)
18AQI (US)
45AQI (US)
39AQI (US)
31AQI (US)
15AQI (US)
37AQI (US)
33AQI (US)
35AQI (US)
19AQI (US)
25AQI (US)
50AQI (US)
54AQI (US)
49AQI (US)
46AQI (US)
47AQI (US)
45AQI (US)
48AQI (US)
52AQI (US)
50AQI (US)
46AQI (US)
48AQI (US)
49AQI (US)
51AQI (US)
54AQI (US)
50AQI (US)
41AQI (US)
39AQI (US)
46AQI (US)
47AQI (US)
47AQI (US)
48AQI (US)
44AQI (US)
52AQI (US)
50AQI (US)
42AQI (US)
44AQI (US)
45AQI (US)
43AQI (US)
41AQI (US)
42AQI (US)
36AQI (US)
35AQI (US)
40AQI (US)
45AQI (US)
43AQI (US)
36AQI (US)
35AQI (US)
39AQI (US)
42AQI (US)
53AQI (US)
47AQI (US)
46AQI (US)
43AQI (US)
39AQI (US)
40AQI (US)
40AQI (US)
42AQI (US)
35AQI (US)
42AQI (US)
42AQI (US)
40AQI (US)
37AQI (US)
36AQI (US)
38AQI (US)
35AQI (US)
33AQI (US)
32AQI (US)
37AQI (US)
37AQI (US)
37AQI (US)
41AQI (US)
37AQI (US)
34AQI (US)
30AQI (US)
30AQI (US)
35AQI (US)
32AQI (US)
28AQI (US)
25AQI (US)
33AQI (US)
34AQI (US)
28AQI (US)
31AQI (US)
29AQI (US)
28AQI (US)
27AQI (US)
31AQI (US)
28AQI (US)
31AQI (US)
34AQI (US)
29AQI (US)
34AQI (US)
33AQI (US)
34AQI (US)
30AQI (US)
34AQI (US)
33AQI (US)
30AQI (US)
28AQI (US)
24AQI (US)
28AQI (US)
32AQI (US)
33AQI (US)
29AQI (US)
25AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
20AQI (US)
30AQI (US)
33AQI (US)
31AQI (US)
28AQI (US)
28AQI (US)
34AQI (US)
32AQI (US)
30AQI (US)
29AQI (US)
25AQI (US)
45AQI (US)
53AQI (US)
56AQI (US)
57AQI (US)
55AQI (US)
49AQI (US)
44AQI (US)
44AQI (US)
51AQI (US)
48AQI (US)
45AQI (US)
29AQI (US)
26AQI (US)
18AQI (US)
19AQI (US)
20AQI (US)
26AQI (US)
27AQI (US)
24AQI (US)
22AQI (US)
24AQI (US)
27AQI (US)
25AQI (US)
20AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
24AQI (US)
26AQI (US)
22AQI (US)
23AQI (US)
23AQI (US)
25AQI (US)
26AQI (US)
25AQI (US)
22AQI (US)
23AQI (US)
20AQI (US)
23AQI (US)
21AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
29AQI (US)
30AQI (US)
27AQI (US)
29AQI (US)
33AQI (US)
31AQI (US)
34AQI (US)
33AQI (US)
34AQI (US)
41AQI (US)
37AQI (US)
36AQI (US)
49AQI (US)
38AQI (US)
36AQI (US)
40AQI (US)
28AQI (US)
30AQI (US)
29AQI (US)
37AQI (US)
39AQI (US)
38AQI (US)
49AQI (US)
38AQI (US)
32AQI (US)
46AQI (US)
40AQI (US)
41AQI (US)
32AQI (US)
40AQI (US)
37AQI (US)
41AQI (US)
35AQI (US)
34AQI (US)
27AQI (US)
30AQI (US)
34AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
29AQI (US)
32AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
31AQI (US)
28AQI (US)
26AQI (US)
25AQI (US)
26AQI (US)
22AQI (US)
25AQI (US)
27AQI (US)
26AQI (US)
27AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
31AQI (US)
29AQI (US)
28AQI (US)
37AQI (US)
41AQI (US)
40AQI (US)
30AQI (US)
36AQI (US)
27AQI (US)
30AQI (US)
29AQI (US)
33AQI (US)
28AQI (US)
32AQI (US)
28AQI (US)
28AQI (US)
29AQI (US)
29AQI (US)
34AQI (US)
27AQI (US)
28AQI (US)
23AQI (US)
37AQI (US)
30AQI (US)
27AQI (US)
38AQI (US)
44AQI (US)
38AQI (US)
30AQI (US)
35AQI (US)
24AQI (US)
34AQI (US)
30AQI (US)
30AQI (US)
27AQI (US)
No. of days
202634AQI (US)
Highest AQI (US) recorded in
February44AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
July40AQI (US)
Lowest AQI (US) recorded in
April23AQI (US)
202431AQI (US)
Highest AQI (US) recorded in
August39AQI (US)
Lowest AQI (US) recorded in
November23AQI (US)
202333AQI (US)
Highest AQI (US) recorded in
June51AQI (US)
Lowest AQI (US) recorded in
November26AQI (US)
202230AQI (US)
Highest AQI (US) recorded in
January41AQI (US)
Lowest AQI (US) recorded in
September20AQI (US)
202129AQI (US)
Highest AQI (US) recorded in
February36AQI (US)
Lowest AQI (US) recorded in
September16AQI (US)
202025AQI (US)
Highest AQI (US) recorded in
November33AQI (US)
Lowest AQI (US) recorded in
October19AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Molson's annual 2026 AQI (US) (34) shows an average percentage change of 13.7% (worsened AQI (US)) compared to previous years: 2020 (25), 2021 (29), 2022 (30), 2023 (33), 2024 (31), 2025 (33).