Grand Forks, British Columbia, 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
Grand Forks, British Columbia, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (15th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Grand Forks, British Columbia, Canada
6 AM16th Sep 2025
7 PM
5 AM17th Sep 2025
51AQI
37AQI
54AQI
40AQI
In the last 24 hours,
Grand Forks's AQI reached its highest point of 54 at 2 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 16th Sep and 17th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Grand Forks, British Columbia, Canada
19°C12/26°C
20°C11/28°C
20°C12/27°C
21°C12/29°C
22°C12/30°C
24°C13/33°C
25°C14/34°C
26°C16/35°C
26°C17/35°C
26°C18/33°C
24°C19/28°C
23°C13/31°C
23°C14/31°C
24°C14/34°C
25°C17/34°C
27°C17/37°C
27°C17/37°C
26°C18/33°C
24°C17/31°C
25°C15/33°C
21°C15/29°C
20°C12/28°C
20°C12/27°C
21°C12/30°C
22°C15/30°C
21°C14/28°C
20°C12/28°C
18°C13/24°C
17°C13/21°C
20°C15/27°C
--°C/°C
64AQI
62AQI
63AQI
58AQI
2025 Days Vs Air Quality
Grand Forks, British Columbia, Canada
90%
156
9%
15
2%
3
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 260 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
Grand Forks, British Columbia, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
21AQI
39AQI
16AQI
14AQI
17AQI
29AQI
18AQI
23AQI
23AQI
40AQI
31AQI
31AQI
29AQI
15AQI
13AQI
19AQI
21AQI
23AQI
16AQI
26AQI
31AQI
30AQI
21AQI
23AQI
26AQI
22AQI
12AQI
18AQI
30AQI
26AQI
40AQI
34AQI
34AQI
27AQI
19AQI
23AQI
25AQI
33AQI
39AQI
16AQI
18AQI
23AQI
27AQI
23AQI
23AQI
31AQI
27AQI
18AQI
18AQI
17AQI
18AQI
22AQI
17AQI
15AQI
16AQI
14AQI
14AQI
21AQI
21AQI
23AQI
24AQI
25AQI
19AQI
14AQI
23AQI
13AQI
15AQI
14AQI
13AQI
16AQI
22AQI
25AQI
30AQI
24AQI
21AQI
31AQI
28AQI
36AQI
45AQI
34AQI
25AQI
23AQI
25AQI
32AQI
31AQI
18AQI
26AQI
17AQI
15AQI
24AQI
43AQI
41AQI
26AQI
19AQI
15AQI
18AQI
21AQI
30AQI
33AQI
22AQI
24AQI
29AQI
26AQI
24AQI
24AQI
26AQI
19AQI
21AQI
26AQI
22AQI
29AQI
20AQI
30AQI
32AQI
27AQI
32AQI
25AQI
27AQI
33AQI
40AQI
37AQI
26AQI
21AQI
26AQI
22AQI
20AQI
34AQI
37AQI
39AQI
42AQI
44AQI
42AQI
31AQI
47AQI
22AQI
18AQI
24AQI
27AQI
22AQI
21AQI
28AQI
27AQI
41AQI
19AQI
14AQI
17AQI
24AQI
28AQI
27AQI
29AQI
33AQI
41AQI
43AQI
47AQI
54AQI
58AQI
57AQI
49AQI
57AQI
64AQI
73AQI
76AQI
88AQI
115AQI
138AQI
125AQI
88AQI
68AQI
60AQI
59AQI
68AQI
74AQI
68AQI
44AQI
23AQI
25AQI
21AQI
25AQI
27AQI
35AQI
81AQI
No. of days
202531AQI
Highest AQI recorded in
September81AQI
Lowest AQI recorded in
May21AQI
Most & Least Polluted Years Over the Last 1 Years
Grand Forks's annual 2025 AQI (31) shows an average percentage change of NaN% (improved AQI) compared to previous years: .