Mont Royal, 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
Mont Royal, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (2nd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 24 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026
Mont Royal, Quebec, Canada
5 AM1st Jun 2026
8 PM
4 AM2nd Jun 2026
36AQI
12AQI
34AQI
24AQI
In the last 24 hours,
Mont Royal's AQI reached its highest point of 36 at 12 PM during the Day, while the lowest point, 12, was recorded at 7 PM during the Day between 1st Jun and 2nd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Mont Royal, Quebec, Canada
11°C5/17°C
16°C10/25°C
8°C6/10°C
8°C5/12°C
9°C6/12°C
11°C3/21°C
12°C7/16°C
9°C5/13°C
9°C3/15°C
8°C5/13°C
10°C7/12°C
13°C10/17°C
17°C9/26°C
19°C13/26°C
14°C9/19°C
21°C14/30°C
18°C9/19°C
10°C4/16°C
13°C5/21°C
15°C8/23°C
12°C10/15°C
15°C12/20°C
21°C12/32°C
19°C15/24°C
15°C11/19°C
13°C10/18°C
13°C8/19°C
13°C9/20°C
14°C8/24°C
18°C10/27°C
46AQI
28AQI
43AQI
30AQI
2026 Days Vs Air Quality
Mont Royal, Quebec, Canada
91%
137
9%
13
Total number of days with different AQI categories in last 154 days in 2026 (211 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 154 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
Mont Royal, Quebec, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
16AQI (US)
26AQI (US)
16AQI (US)
46AQI (US)
38AQI (US)
58AQI (US)
61AQI (US)
70AQI (US)
42AQI (US)
15AQI (US)
18AQI (US)
20AQI (US)
48AQI (US)
38AQI (US)
30AQI (US)
12AQI (US)
36AQI (US)
34AQI (US)
42AQI (US)
20AQI (US)
22AQI (US)
49AQI (US)
54AQI (US)
48AQI (US)
46AQI (US)
48AQI (US)
44AQI (US)
46AQI (US)
51AQI (US)
49AQI (US)
45AQI (US)
48AQI (US)
49AQI (US)
50AQI (US)
54AQI (US)
49AQI (US)
40AQI (US)
38AQI (US)
45AQI (US)
46AQI (US)
46AQI (US)
46AQI (US)
43AQI (US)
51AQI (US)
49AQI (US)
41AQI (US)
44AQI (US)
44AQI (US)
43AQI (US)
40AQI (US)
42AQI (US)
35AQI (US)
35AQI (US)
40AQI (US)
44AQI (US)
42AQI (US)
36AQI (US)
35AQI (US)
38AQI (US)
41AQI (US)
53AQI (US)
47AQI (US)
45AQI (US)
42AQI (US)
38AQI (US)
40AQI (US)
39AQI (US)
40AQI (US)
34AQI (US)
44AQI (US)
42AQI (US)
40AQI (US)
37AQI (US)
36AQI (US)
37AQI (US)
34AQI (US)
32AQI (US)
32AQI (US)
36AQI (US)
36AQI (US)
35AQI (US)
41AQI (US)
36AQI (US)
34AQI (US)
29AQI (US)
30AQI (US)
34AQI (US)
30AQI (US)
28AQI (US)
25AQI (US)
32AQI (US)
34AQI (US)
27AQI (US)
32AQI (US)
29AQI (US)
28AQI (US)
26AQI (US)
31AQI (US)
28AQI (US)
30AQI (US)
33AQI (US)
28AQI (US)
33AQI (US)
33AQI (US)
33AQI (US)
30AQI (US)
34AQI (US)
32AQI (US)
29AQI (US)
28AQI (US)
23AQI (US)
28AQI (US)
31AQI (US)
33AQI (US)
28AQI (US)
25AQI (US)
23AQI (US)
26AQI (US)
27AQI (US)
24AQI (US)
20AQI (US)
30AQI (US)
33AQI (US)
31AQI (US)
29AQI (US)
27AQI (US)
33AQI (US)
32AQI (US)
28AQI (US)
28AQI (US)
24AQI (US)
46AQI (US)
53AQI (US)
57AQI (US)
57AQI (US)
54AQI (US)
49AQI (US)
44AQI (US)
44AQI (US)
51AQI (US)
48AQI (US)
45AQI (US)
28AQI (US)
26AQI (US)
18AQI (US)
20AQI (US)
20AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
38AQI (US)
43AQI (US)
37AQI (US)
30AQI (US)
35AQI (US)
25AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
July40AQI (US)
Lowest AQI (US) recorded in
May24AQI (US)
202433AQI (US)
Highest AQI (US) recorded in
February41AQI (US)
Lowest AQI (US) recorded in
November25AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
June55AQI (US)
Lowest AQI (US) recorded in
November28AQI (US)
202235AQI (US)
Highest AQI (US) recorded in
January47AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202135AQI (US)
Highest AQI (US) recorded in
February42AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202029AQI (US)
Highest AQI (US) recorded in
November36AQI (US)
Lowest AQI (US) recorded in
October25AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Mont Royal's annual 2026 AQI (US) (37) shows an average percentage change of 10.1% (worsened AQI (US)) compared to previous years: 2020 (29), 2021 (35), 2022 (35), 2023 (38), 2024 (33), 2025 (33).