Granby, Quebec, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Granby, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (7th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Oct - 8th Oct 2025
Granby, Quebec, Canada
6 AM7th Oct 2025
6 PM
5 AM8th Oct 2025
54AQI
46AQI
64AQI
39AQI
In the last 24 hours,
Granby's AQI reached its highest point of 64 at 11 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 7th Oct and 8th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Granby, Quebec, Canada
13°C9/20°C
15°C6/25°C
18°C11/25°C
15°C8/22°C
13°C5/20°C
16°C10/24°C
18°C14/23°C
15°C6/22°C
17°C8/25°C
19°C12/25°C
20°C12/28°C
14°C10/18°C
10°C2/17°C
13°C3/25°C
19°C13/27°C
17°C15/20°C
18°C12/23°C
17°C17/20°C
17°C15/23°C
15°C8/21°C
19°C15/27°C
17°C9/27°C
14°C10/19°C
9°C4/17°C
10°C2/20°C
14°C6/23°C
18°C12/26°C
21°C13/31°C
21°C14/29°C
21°C17/31°C
--°C/°C
31AQI
28AQI
33AQI
28AQI
2025 Days Vs Air Quality
Granby, Quebec, Canada
86%
167
14%
28
Total number of days with different AQI categories in last 281 days in 2025 (84 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 281 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Granby, Quebec, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
19AQI
19AQI
18AQI
23AQI
22AQI
16AQI
18AQI
18AQI
18AQI
19AQI
19AQI
18AQI
20AQI
18AQI
25AQI
31AQI
29AQI
22AQI
31AQI
24AQI
15AQI
16AQI
24AQI
40AQI
16AQI
22AQI
20AQI
12AQI
16AQI
21AQI
22AQI
12AQI
22AQI
25AQI
17AQI
18AQI
25AQI
17AQI
20AQI
19AQI
18AQI
17AQI
16AQI
15AQI
19AQI
18AQI
21AQI
27AQI
31AQI
31AQI
34AQI
30AQI
19AQI
12AQI
13AQI
17AQI
16AQI
13AQI
13AQI
16AQI
23AQI
25AQI
28AQI
28AQI
23AQI
26AQI
13AQI
16AQI
25AQI
45AQI
50AQI
53AQI
61AQI
58AQI
60AQI
41AQI
51AQI
57AQI
28AQI
28AQI
34AQI
37AQI
39AQI
21AQI
31AQI
23AQI
25AQI
25AQI
37AQI
51AQI
43AQI
27AQI
26AQI
26AQI
26AQI
30AQI
36AQI
36AQI
45AQI
32AQI
27AQI
38AQI
46AQI
26AQI
33AQI
38AQI
35AQI
47AQI
42AQI
35AQI
39AQI
51AQI
52AQI
24AQI
32AQI
40AQI
33AQI
19AQI
23AQI
33AQI
41AQI
52AQI
60AQI
57AQI
56AQI
62AQI
54AQI
25AQI
36AQI
73AQI
84AQI
39AQI
30AQI
39AQI
53AQI
61AQI
63AQI
58AQI
57AQI
56AQI
52AQI
36AQI
43AQI
38AQI
15AQI
19AQI
20AQI
23AQI
33AQI
34AQI
33AQI
28AQI
17AQI
20AQI
25AQI
22AQI
19AQI
23AQI
32AQI
34AQI
30AQI
27AQI
27AQI
29AQI
28AQI
18AQI
19AQI
24AQI
32AQI
25AQI
29AQI
41AQI
31AQI
32AQI
31AQI
31AQI
21AQI
17AQI
21AQI
21AQI
29AQI
31AQI
19AQI
20AQI
23AQI
31AQI
26AQI
26AQI
18AQI
36AQI
48AQI
55AQI
59AQI
61AQI
52AQI
20AQI
21AQI
21AQI
36AQI
40AQI
38AQI
27AQI
47AQI
No. of days
202531AQI
Highest AQI recorded in
October47AQI
Lowest AQI recorded in
March20AQI
Most & Least Polluted Years Over the Last 1 Years
Granby's annual 2025 AQI (31) shows an average percentage change of NaN% (improved AQI) compared to previous years: .