Dunham, 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
Dunham, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (25th September):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 34 of Good air quality on the same day.
Day & Night AQI Trend: 25th Sep - 26th Sep 2026
Dunham, Quebec, Canada
6 AM25th Sep 2026
7 PM
5 AM26th Sep 2026
44AQI
21AQI
44AQI
19AQI
In the last 24 hours,
Dunham's AQI reached its highest point of 44 at 6 AM during the Day, while the lowest point, 19, was recorded at 7 PM during the Night between 25th Sep and 26th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Dunham, Quebec, Canada
20°C14/23°C
18°C9/27°C
20°C16/25°C
18°C10/28°C
20°C12/29°C
20°C15/25°C
21°C18/26°C
20°C16/25°C
18°C14/22°C
17°C12/24°C
18°C10/26°C
17°C14/23°C
17°C11/24°C
20°C14/25°C
14°C10/20°C
16°C7/25°C
18°C15/21°C
12°C8/18°C
13°C7/18°C
18°C15/22°C
18°C15/23°C
14°C8/18°C
9°C4/15°C
9°C8/11°C
9°C8/13°C
10°C5/16°C
12°C6/18°C
12°C6/19°C
15°C9/21°C
16°C12/21°C
29AQI
23AQI
34AQI
25AQI
2026 Days Vs Air Quality
Dunham, Quebec, Canada
97%
258
3%
7
Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2026, 97% 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
Dunham, Quebec, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
17AQI (US)
31AQI (US)
17AQI (US)
35AQI (US)
34AQI (US)
50AQI (US)
42AQI (US)
47AQI (US)
30AQI (US)
15AQI (US)
14AQI (US)
13AQI (US)
36AQI (US)
27AQI (US)
22AQI (US)
11AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
15AQI (US)
18AQI (US)
41AQI (US)
57AQI (US)
47AQI (US)
46AQI (US)
46AQI (US)
37AQI (US)
26AQI (US)
38AQI (US)
55AQI (US)
43AQI (US)
46AQI (US)
52AQI (US)
46AQI (US)
36AQI (US)
51AQI (US)
39AQI (US)
33AQI (US)
32AQI (US)
47AQI (US)
45AQI (US)
28AQI (US)
39AQI (US)
47AQI (US)
44AQI (US)
38AQI (US)
38AQI (US)
28AQI (US)
39AQI (US)
39AQI (US)
38AQI (US)
35AQI (US)
36AQI (US)
35AQI (US)
43AQI (US)
40AQI (US)
34AQI (US)
37AQI (US)
31AQI (US)
39AQI (US)
58AQI (US)
40AQI (US)
48AQI (US)
33AQI (US)
26AQI (US)
42AQI (US)
39AQI (US)
38AQI (US)
32AQI (US)
39AQI (US)
40AQI (US)
43AQI (US)
36AQI (US)
32AQI (US)
36AQI (US)
33AQI (US)
32AQI (US)
27AQI (US)
38AQI (US)
37AQI (US)
35AQI (US)
32AQI (US)
34AQI (US)
33AQI (US)
17AQI (US)
23AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
18AQI (US)
26AQI (US)
29AQI (US)
27AQI (US)
32AQI (US)
29AQI (US)
29AQI (US)
25AQI (US)
31AQI (US)
27AQI (US)
23AQI (US)
30AQI (US)
24AQI (US)
21AQI (US)
32AQI (US)
33AQI (US)
29AQI (US)
29AQI (US)
33AQI (US)
28AQI (US)
26AQI (US)
17AQI (US)
24AQI (US)
28AQI (US)
30AQI (US)
25AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
26AQI (US)
24AQI (US)
21AQI (US)
32AQI (US)
31AQI (US)
28AQI (US)
25AQI (US)
27AQI (US)
31AQI (US)
27AQI (US)
25AQI (US)
27AQI (US)
20AQI (US)
46AQI (US)
46AQI (US)
52AQI (US)
47AQI (US)
45AQI (US)
40AQI (US)
40AQI (US)
37AQI (US)
40AQI (US)
44AQI (US)
45AQI (US)
21AQI (US)
17AQI (US)
15AQI (US)
18AQI (US)
18AQI (US)
24AQI (US)
24AQI (US)
18AQI (US)
17AQI (US)
14AQI (US)
17AQI (US)
15AQI (US)
15AQI (US)
19AQI (US)
17AQI (US)
15AQI (US)
16AQI (US)
14AQI (US)
16AQI (US)
14AQI (US)
21AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
21AQI (US)
21AQI (US)
18AQI (US)
17AQI (US)
17AQI (US)
15AQI (US)
16AQI (US)
25AQI (US)
22AQI (US)
20AQI (US)
20AQI (US)
21AQI (US)
18AQI (US)
23AQI (US)
23AQI (US)
20AQI (US)
21AQI (US)
29AQI (US)
22AQI (US)
21AQI (US)
15AQI (US)
20AQI (US)
22AQI (US)
24AQI (US)
30AQI (US)
26AQI (US)
44AQI (US)
33AQI (US)
31AQI (US)
67AQI (US)
43AQI (US)
37AQI (US)
44AQI (US)
30AQI (US)
26AQI (US)
30AQI (US)
40AQI (US)
42AQI (US)
42AQI (US)
50AQI (US)
38AQI (US)
36AQI (US)
41AQI (US)
40AQI (US)
42AQI (US)
32AQI (US)
35AQI (US)
35AQI (US)
34AQI (US)
37AQI (US)
37AQI (US)
30AQI (US)
28AQI (US)
39AQI (US)
25AQI (US)
26AQI (US)
29AQI (US)
37AQI (US)
32AQI (US)
26AQI (US)
23AQI (US)
27AQI (US)
28AQI (US)
30AQI (US)
32AQI (US)
23AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
25AQI (US)
27AQI (US)
22AQI (US)
25AQI (US)
27AQI (US)
27AQI (US)
30AQI (US)
23AQI (US)
25AQI (US)
20AQI (US)
23AQI (US)
36AQI (US)
26AQI (US)
27AQI (US)
30AQI (US)
35AQI (US)
40AQI (US)
26AQI (US)
28AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
30AQI (US)
25AQI (US)
31AQI (US)
26AQI (US)
23AQI (US)
23AQI (US)
28AQI (US)
34AQI (US)
32AQI (US)
39AQI (US)
34AQI (US)
27AQI (US)
31AQI (US)
19AQI (US)
32AQI (US)
30AQI (US)
28AQI (US)
No. of days
202630AQI (US)
Highest AQI (US) recorded in
February39AQI (US)
Lowest AQI (US) recorded in
June19AQI (US)
202528AQI (US)
Highest AQI (US) recorded in
July40AQI (US)
Lowest AQI (US) recorded in
May18AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Dunham's annual 2026 AQI (US) (30) shows an average percentage change of 7.1% (worsened AQI (US)) compared to previous years: 2025 (28).