Rouyn Noranda, 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
Rouyn Noranda, 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 34 of Good air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 25th Sep - 26th Sep 2026
Rouyn Noranda, Quebec, Canada
6 AM25th Sep 2026
7 PM
5 AM26th Sep 2026
44AQI
16AQI
51AQI
23AQI
In the last 24 hours,
Rouyn Noranda's AQI reached its highest point of 51 at 12 AM during the Night, while the lowest point, 16, was recorded at 7 PM during the Day between 25th Sep and 26th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Rouyn Noranda, Quebec, Canada
12°C8/16°C
15°C8/22°C
15°C9/22°C
16°C9/24°C
17°C15/20°C
20°C17/24°C
17°C14/20°C
16°C14/19°C
16°C11/20°C
16°C8/24°C
16°C11/23°C
14°C9/19°C
19°C15/25°C
11°C9/16°C
13°C6/22°C
18°C12/24°C
12°C9/15°C
9°C5/15°C
11°C8/15°C
12°C8/17°C
12°C8/18°C
7°C3/10°C
8°C2/14°C
7°C4/10°C
7°C3/11°C
8°C2/14°C
10°C5/17°C
11°C6/17°C
11°C7/17°C
14°C9/19°C
36AQI
26AQI
36AQI
29AQI
2026 Days Vs Air Quality
Rouyn Noranda, Quebec, Canada
93%
246
7%
19
Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% 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
Rouyn Noranda, Quebec, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI (US)
38AQI (US)
20AQI (US)
41AQI (US)
36AQI (US)
36AQI (US)
44AQI (US)
25AQI (US)
24AQI (US)
16AQI (US)
13AQI (US)
15AQI (US)
11AQI (US)
16AQI (US)
13AQI (US)
28AQI (US)
16AQI (US)
22AQI (US)
18AQI (US)
20AQI (US)
16AQI (US)
54AQI (US)
59AQI (US)
49AQI (US)
52AQI (US)
48AQI (US)
38AQI (US)
42AQI (US)
48AQI (US)
50AQI (US)
40AQI (US)
50AQI (US)
54AQI (US)
48AQI (US)
45AQI (US)
52AQI (US)
54AQI (US)
35AQI (US)
40AQI (US)
46AQI (US)
43AQI (US)
38AQI (US)
37AQI (US)
47AQI (US)
50AQI (US)
46AQI (US)
44AQI (US)
53AQI (US)
42AQI (US)
42AQI (US)
39AQI (US)
37AQI (US)
34AQI (US)
36AQI (US)
40AQI (US)
40AQI (US)
34AQI (US)
32AQI (US)
34AQI (US)
34AQI (US)
50AQI (US)
44AQI (US)
46AQI (US)
41AQI (US)
35AQI (US)
45AQI (US)
38AQI (US)
38AQI (US)
39AQI (US)
40AQI (US)
39AQI (US)
40AQI (US)
35AQI (US)
31AQI (US)
33AQI (US)
34AQI (US)
31AQI (US)
36AQI (US)
44AQI (US)
43AQI (US)
35AQI (US)
40AQI (US)
36AQI (US)
32AQI (US)
36AQI (US)
28AQI (US)
31AQI (US)
31AQI (US)
27AQI (US)
31AQI (US)
29AQI (US)
30AQI (US)
29AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
30AQI (US)
28AQI (US)
31AQI (US)
30AQI (US)
28AQI (US)
34AQI (US)
38AQI (US)
37AQI (US)
36AQI (US)
29AQI (US)
32AQI (US)
28AQI (US)
28AQI (US)
24AQI (US)
24AQI (US)
28AQI (US)
32AQI (US)
26AQI (US)
26AQI (US)
23AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
33AQI (US)
36AQI (US)
30AQI (US)
27AQI (US)
29AQI (US)
30AQI (US)
26AQI (US)
25AQI (US)
34AQI (US)
21AQI (US)
46AQI (US)
52AQI (US)
56AQI (US)
57AQI (US)
54AQI (US)
50AQI (US)
44AQI (US)
44AQI (US)
51AQI (US)
48AQI (US)
45AQI (US)
34AQI (US)
30AQI (US)
28AQI (US)
26AQI (US)
27AQI (US)
29AQI (US)
31AQI (US)
32AQI (US)
32AQI (US)
27AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
29AQI (US)
28AQI (US)
24AQI (US)
22AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
28AQI (US)
33AQI (US)
30AQI (US)
34AQI (US)
30AQI (US)
29AQI (US)
34AQI (US)
30AQI (US)
38AQI (US)
47AQI (US)
38AQI (US)
40AQI (US)
32AQI (US)
34AQI (US)
48AQI (US)
56AQI (US)
49AQI (US)
37AQI (US)
52AQI (US)
54AQI (US)
52AQI (US)
60AQI (US)
60AQI (US)
39AQI (US)
54AQI (US)
46AQI (US)
29AQI (US)
34AQI (US)
48AQI (US)
36AQI (US)
30AQI (US)
33AQI (US)
38AQI (US)
30AQI (US)
30AQI (US)
41AQI (US)
39AQI (US)
32AQI (US)
30AQI (US)
28AQI (US)
48AQI (US)
50AQI (US)
34AQI (US)
36AQI (US)
27AQI (US)
28AQI (US)
29AQI (US)
32AQI (US)
29AQI (US)
32AQI (US)
36AQI (US)
29AQI (US)
32AQI (US)
30AQI (US)
28AQI (US)
31AQI (US)
33AQI (US)
27AQI (US)
27AQI (US)
22AQI (US)
26AQI (US)
30AQI (US)
32AQI (US)
25AQI (US)
37AQI (US)
36AQI (US)
31AQI (US)
38AQI (US)
28AQI (US)
29AQI (US)
33AQI (US)
34AQI (US)
30AQI (US)
33AQI (US)
30AQI (US)
32AQI (US)
29AQI (US)
32AQI (US)
34AQI (US)
38AQI (US)
26AQI (US)
28AQI (US)
36AQI (US)
32AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
28AQI (US)
29AQI (US)
34AQI (US)
31AQI (US)
43AQI (US)
37AQI (US)
29AQI (US)
36AQI (US)
28AQI (US)
41AQI (US)
32AQI (US)
31AQI (US)
No. of days
202634AQI (US)
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
June28AQI (US)
202529AQI (US)
Highest AQI (US) recorded in
August43AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202431AQI (US)
Highest AQI (US) recorded in
July42AQI (US)
Lowest AQI (US) recorded in
November18AQI (US)
202340AQI (US)
Highest AQI (US) recorded in
June105AQI (US)
Lowest AQI (US) recorded in
December23AQI (US)
202231AQI (US)
Highest AQI (US) recorded in
March43AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
202130AQI (US)
Highest AQI (US) recorded in
July44AQI (US)
Lowest AQI (US) recorded in
September18AQI (US)
202026AQI (US)
Highest AQI (US) recorded in
June30AQI (US)
Lowest AQI (US) recorded in
October21AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Rouyn Noranda's annual 2026 AQI (US) (34) shows an average percentage change of 10.9% (worsened AQI (US)) compared to previous years: 2020 (26), 2021 (30), 2022 (31), 2023 (40), 2024 (31), 2025 (29).