Sherbrooke, Quebec, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Sherbrooke, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (25th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 36 of Good air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 25th Sep - 26th Sep 2026
Sherbrooke, Quebec, Canada
6 AM25th Sep 2026
7 PM
5 AM26th Sep 2026
66AQI
21AQI
48AQI
20AQI
In the last 24 hours,
Sherbrooke's AQI reached its highest point of 66 at 8 AM during the Day, while the lowest point, 20, was recorded at 7 PM during the Night between 25th Sep and 26th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Sherbrooke, Quebec, Canada
19°C14/23°C
17°C9/27°C
18°C15/24°C
16°C9/25°C
17°C8/26°C
19°C13/24°C
19°C16/25°C
18°C13/24°C
17°C12/21°C
15°C11/23°C
17°C7/27°C
17°C12/22°C
14°C7/20°C
19°C12/25°C
13°C8/20°C
15°C5/24°C
17°C14/21°C
12°C8/17°C
12°C5/19°C
17°C14/22°C
16°C12/22°C
13°C7/17°C
8°C3/14°C
8°C6/11°C
9°C6/13°C
9°C3/16°C
10°C5/17°C
11°C4/19°C
14°C8/22°C
15°C10/21°C
31AQI
24AQI
35AQI
26AQI
2026 Days Vs Air Quality
Sherbrooke, Quebec, Canada
95%
252
5%
13
Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 269 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
Sherbrooke, Quebec, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI (US)
36AQI (US)
22AQI (US)
46AQI (US)
42AQI (US)
51AQI (US)
45AQI (US)
33AQI (US)
23AQI (US)
20AQI (US)
17AQI (US)
16AQI (US)
23AQI (US)
29AQI (US)
34AQI (US)
18AQI (US)
36AQI (US)
35AQI (US)
44AQI (US)
20AQI (US)
21AQI (US)
56AQI (US)
60AQI (US)
48AQI (US)
50AQI (US)
48AQI (US)
38AQI (US)
43AQI (US)
48AQI (US)
55AQI (US)
42AQI (US)
48AQI (US)
52AQI (US)
48AQI (US)
46AQI (US)
51AQI (US)
39AQI (US)
38AQI (US)
42AQI (US)
46AQI (US)
45AQI (US)
40AQI (US)
39AQI (US)
47AQI (US)
44AQI (US)
38AQI (US)
43AQI (US)
33AQI (US)
40AQI (US)
41AQI (US)
39AQI (US)
35AQI (US)
36AQI (US)
38AQI (US)
45AQI (US)
44AQI (US)
35AQI (US)
37AQI (US)
38AQI (US)
39AQI (US)
58AQI (US)
44AQI (US)
46AQI (US)
40AQI (US)
31AQI (US)
42AQI (US)
38AQI (US)
38AQI (US)
34AQI (US)
47AQI (US)
40AQI (US)
43AQI (US)
36AQI (US)
33AQI (US)
36AQI (US)
32AQI (US)
32AQI (US)
34AQI (US)
41AQI (US)
40AQI (US)
35AQI (US)
40AQI (US)
36AQI (US)
32AQI (US)
27AQI (US)
29AQI (US)
31AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
28AQI (US)
30AQI (US)
27AQI (US)
32AQI (US)
30AQI (US)
29AQI (US)
26AQI (US)
31AQI (US)
27AQI (US)
31AQI (US)
30AQI (US)
24AQI (US)
29AQI (US)
32AQI (US)
33AQI (US)
30AQI (US)
29AQI (US)
33AQI (US)
28AQI (US)
27AQI (US)
23AQI (US)
25AQI (US)
28AQI (US)
32AQI (US)
27AQI (US)
24AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
20AQI (US)
34AQI (US)
37AQI (US)
29AQI (US)
26AQI (US)
26AQI (US)
31AQI (US)
27AQI (US)
25AQI (US)
27AQI (US)
22AQI (US)
46AQI (US)
53AQI (US)
56AQI (US)
58AQI (US)
55AQI (US)
51AQI (US)
44AQI (US)
44AQI (US)
51AQI (US)
48AQI (US)
45AQI (US)
28AQI (US)
26AQI (US)
22AQI (US)
21AQI (US)
22AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
25AQI (US)
21AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
23AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
22AQI (US)
22AQI (US)
20AQI (US)
21AQI (US)
21AQI (US)
23AQI (US)
25AQI (US)
27AQI (US)
28AQI (US)
29AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
27AQI (US)
29AQI (US)
28AQI (US)
30AQI (US)
32AQI (US)
31AQI (US)
28AQI (US)
29AQI (US)
32AQI (US)
29AQI (US)
32AQI (US)
36AQI (US)
34AQI (US)
42AQI (US)
36AQI (US)
31AQI (US)
46AQI (US)
39AQI (US)
40AQI (US)
40AQI (US)
34AQI (US)
28AQI (US)
30AQI (US)
36AQI (US)
36AQI (US)
37AQI (US)
38AQI (US)
36AQI (US)
35AQI (US)
38AQI (US)
35AQI (US)
40AQI (US)
34AQI (US)
38AQI (US)
39AQI (US)
42AQI (US)
32AQI (US)
32AQI (US)
28AQI (US)
27AQI (US)
33AQI (US)
25AQI (US)
29AQI (US)
28AQI (US)
40AQI (US)
32AQI (US)
28AQI (US)
24AQI (US)
29AQI (US)
27AQI (US)
27AQI (US)
30AQI (US)
24AQI (US)
34AQI (US)
30AQI (US)
25AQI (US)
26AQI (US)
29AQI (US)
23AQI (US)
26AQI (US)
28AQI (US)
27AQI (US)
28AQI (US)
26AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
35AQI (US)
29AQI (US)
26AQI (US)
38AQI (US)
38AQI (US)
32AQI (US)
27AQI (US)
35AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
32AQI (US)
26AQI (US)
32AQI (US)
26AQI (US)
26AQI (US)
29AQI (US)
30AQI (US)
36AQI (US)
36AQI (US)
42AQI (US)
36AQI (US)
28AQI (US)
35AQI (US)
25AQI (US)
34AQI (US)
30AQI (US)
29AQI (US)
No. of days
202633AQI (US)
Highest AQI (US) recorded in
February42AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202530AQI (US)
Highest AQI (US) recorded in
July38AQI (US)
Lowest AQI (US) recorded in
April18AQI (US)
202427AQI (US)
Highest AQI (US) recorded in
August37AQI (US)
Lowest AQI (US) recorded in
November22AQI (US)
202332AQI (US)
Highest AQI (US) recorded in
July49AQI (US)
Lowest AQI (US) recorded in
January22AQI (US)
202226AQI (US)
Highest AQI (US) recorded in
January38AQI (US)
Lowest AQI (US) recorded in
September19AQI (US)
202131AQI (US)
Highest AQI (US) recorded in
August41AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
202026AQI (US)
Highest AQI (US) recorded in
December30AQI (US)
Lowest AQI (US) recorded in
October19AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Sherbrooke's annual 2026 AQI (US) (33) shows an average percentage change of 15.9% (worsened AQI (US)) compared to previous years: 2020 (26), 2021 (31), 2022 (26), 2023 (32), 2024 (27), 2025 (30).