Montmagny, Quebec, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
June Air Quality Analysis
Montmagny, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (3rd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 24 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Jun - 4th Jun 2026
Montmagny, Quebec, Canada
5 AM3rd Jun 2026
8 PM
4 AM4th Jun 2026
31AQI
14AQI
29AQI
24AQI
In the last 24 hours,
Montmagny's AQI reached its highest point of 31 at 9 AM during the Day, while the lowest point, 14, was recorded at 7 AM during the Day between 3rd Jun and 4th Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Montmagny, Quebec, Canada
7°C4/9°C
6°C3/9°C
5°C2/9°C
8°C3/15°C
10°C6/15°C
7°C3/10°C
5°C2/8°C
8°C3/15°C
8°C6/12°C
12°C8/17°C
15°C10/22°C
13°C8/16°C
10°C5/15°C
12°C10/13°C
15°C4/20°C
6°C2/12°C
9°C2/16°C
11°C4/18°C
14°C10/21°C
12°C10/16°C
17°C11/23°C
12°C8/15°C
7°C6/8°C
8°C6/12°C
10°C5/16°C
10°C7/13°C
12°C7/17°C
15°C10/22°C
19°C13/27°C
22°C17/27°C
44AQI
28AQI
42AQI
30AQI
2026 Days Vs Air Quality
Montmagny, Quebec, Canada
91%
138
9%
13
Total number of days with different AQI categories in last 155 days in 2026 (210 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 155 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
Montmagny, Quebec, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI (US)
18AQI (US)
18AQI (US)
34AQI (US)
39AQI (US)
56AQI (US)
40AQI (US)
58AQI (US)
46AQI (US)
18AQI (US)
15AQI (US)
19AQI (US)
50AQI (US)
40AQI (US)
39AQI (US)
13AQI (US)
31AQI (US)
42AQI (US)
60AQI (US)
24AQI (US)
35AQI (US)
48AQI (US)
53AQI (US)
49AQI (US)
47AQI (US)
47AQI (US)
44AQI (US)
46AQI (US)
51AQI (US)
47AQI (US)
43AQI (US)
48AQI (US)
49AQI (US)
52AQI (US)
54AQI (US)
49AQI (US)
40AQI (US)
37AQI (US)
44AQI (US)
45AQI (US)
46AQI (US)
47AQI (US)
46AQI (US)
53AQI (US)
38AQI (US)
41AQI (US)
38AQI (US)
43AQI (US)
41AQI (US)
39AQI (US)
42AQI (US)
34AQI (US)
35AQI (US)
38AQI (US)
42AQI (US)
40AQI (US)
34AQI (US)
32AQI (US)
35AQI (US)
39AQI (US)
51AQI (US)
45AQI (US)
44AQI (US)
42AQI (US)
38AQI (US)
40AQI (US)
38AQI (US)
39AQI (US)
33AQI (US)
39AQI (US)
42AQI (US)
39AQI (US)
36AQI (US)
35AQI (US)
35AQI (US)
35AQI (US)
33AQI (US)
32AQI (US)
37AQI (US)
36AQI (US)
35AQI (US)
40AQI (US)
35AQI (US)
34AQI (US)
30AQI (US)
31AQI (US)
34AQI (US)
31AQI (US)
27AQI (US)
24AQI (US)
31AQI (US)
35AQI (US)
28AQI (US)
30AQI (US)
29AQI (US)
27AQI (US)
27AQI (US)
31AQI (US)
27AQI (US)
30AQI (US)
33AQI (US)
30AQI (US)
32AQI (US)
34AQI (US)
32AQI (US)
29AQI (US)
34AQI (US)
34AQI (US)
31AQI (US)
28AQI (US)
26AQI (US)
29AQI (US)
32AQI (US)
34AQI (US)
29AQI (US)
25AQI (US)
22AQI (US)
26AQI (US)
27AQI (US)
26AQI (US)
21AQI (US)
28AQI (US)
32AQI (US)
31AQI (US)
28AQI (US)
27AQI (US)
33AQI (US)
31AQI (US)
29AQI (US)
29AQI (US)
25AQI (US)
46AQI (US)
53AQI (US)
56AQI (US)
57AQI (US)
55AQI (US)
49AQI (US)
44AQI (US)
43AQI (US)
50AQI (US)
48AQI (US)
45AQI (US)
29AQI (US)
28AQI (US)
20AQI (US)
18AQI (US)
23AQI (US)
28AQI (US)
29AQI (US)
26AQI (US)
24AQI (US)
39AQI (US)
42AQI (US)
36AQI (US)
30AQI (US)
35AQI (US)
26AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
February42AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202528AQI (US)
Highest AQI (US) recorded in
October38AQI (US)
Lowest AQI (US) recorded in
April18AQI (US)
202424AQI (US)
Highest AQI (US) recorded in
August37AQI (US)
Lowest AQI (US) recorded in
November17AQI (US)
202328AQI (US)
Highest AQI (US) recorded in
July42AQI (US)
Lowest AQI (US) recorded in
November22AQI (US)
202223AQI (US)
Highest AQI (US) recorded in
July26AQI (US)
Lowest AQI (US) recorded in
September20AQI (US)
202123AQI (US)
Highest AQI (US) recorded in
July34AQI (US)
Lowest AQI (US) recorded in
November18AQI (US)
202022AQI (US)
Highest AQI (US) recorded in
July28AQI (US)
Lowest AQI (US) recorded in
September17AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Montmagny's annual 2026 AQI (US) (36) shows an average percentage change of 47.3% (worsened AQI (US)) compared to previous years: 2020 (22), 2021 (23), 2022 (23), 2023 (28), 2024 (24), 2025 (28).