For St, Granite Falls, Washington, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
For St, Granite Falls, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 49 of Good air quality on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
For St, Granite Falls, Washington, United States
5 AM15th Aug 2026
8 PM
4 AM16th Aug 2026
70AQI
38AQI
44AQI
25AQI
In the last 24 hours,
For St's AQI reached its highest point of 70 at 5 PM during the Day, while the lowest point, 25, was recorded at 3 AM during the Night between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
For St, Granite Falls, Washington, United States
18°C13/23°C
19°C12/25°C
24°C16/31°C
27°C20/34°C
28°C22/35°C
23°C18/26°C
21°C14/27°C
19°C15/22°C
19°C15/24°C
20°C15/26°C
19°C16/22°C
18°C13/25°C
19°C12/25°C
21°C14/29°C
17°C14/20°C
16°C13/19°C
18°C11/26°C
22°C15/28°C
23°C17/31°C
23°C17/30°C
23°C17/29°C
21°C15/27°C
19°C12/26°C
18°C12/24°C
19°C12/25°C
20°C14/25°C
21°C15/27°C
22°C18/28°C
19°C11/28°C
17°C9/25°C
61AQI
49AQI
58AQI
50AQI
2026 Days Vs Air Quality
For St, Granite Falls, Washington, United States
92%
206
8%
17
0.4%
1
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2026, 92% of 228 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
For St, Granite Falls, Washington, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
86AQI (US)
69AQI (US)
28AQI (US)
18AQI (US)
23AQI (US)
22AQI (US)
17AQI (US)
20AQI (US)
28AQI (US)
41AQI (US)
29AQI (US)
24AQI (US)
22AQI (US)
28AQI (US)
24AQI (US)
19AQI (US)
44AQI (US)
46AQI (US)
42AQI (US)
47AQI (US)
38AQI (US)
37AQI (US)
42AQI (US)
43AQI (US)
41AQI (US)
34AQI (US)
26AQI (US)
38AQI (US)
48AQI (US)
48AQI (US)
38AQI (US)
48AQI (US)
48AQI (US)
48AQI (US)
40AQI (US)
46AQI (US)
26AQI (US)
26AQI (US)
33AQI (US)
44AQI (US)
42AQI (US)
28AQI (US)
19AQI (US)
29AQI (US)
43AQI (US)
34AQI (US)
31AQI (US)
36AQI (US)
35AQI (US)
40AQI (US)
21AQI (US)
30AQI (US)
35AQI (US)
34AQI (US)
38AQI (US)
30AQI (US)
33AQI (US)
30AQI (US)
27AQI (US)
29AQI (US)
40AQI (US)
29AQI (US)
47AQI (US)
34AQI (US)
25AQI (US)
42AQI (US)
35AQI (US)
36AQI (US)
34AQI (US)
39AQI (US)
31AQI (US)
38AQI (US)
26AQI (US)
28AQI (US)
33AQI (US)
32AQI (US)
30AQI (US)
34AQI (US)
41AQI (US)
35AQI (US)
32AQI (US)
32AQI (US)
29AQI (US)
30AQI (US)
23AQI (US)
25AQI (US)
16AQI (US)
20AQI (US)
23AQI (US)
20AQI (US)
24AQI (US)
30AQI (US)
21AQI (US)
22AQI (US)
24AQI (US)
22AQI (US)
17AQI (US)
20AQI (US)
17AQI (US)
22AQI (US)
23AQI (US)
17AQI (US)
28AQI (US)
32AQI (US)
28AQI (US)
27AQI (US)
18AQI (US)
18AQI (US)
14AQI (US)
15AQI (US)
19AQI (US)
18AQI (US)
17AQI (US)
26AQI (US)
16AQI (US)
18AQI (US)
18AQI (US)
23AQI (US)
19AQI (US)
18AQI (US)
20AQI (US)
30AQI (US)
27AQI (US)
18AQI (US)
16AQI (US)
22AQI (US)
21AQI (US)
18AQI (US)
19AQI (US)
20AQI (US)
22AQI (US)
42AQI (US)
51AQI (US)
55AQI (US)
47AQI (US)
42AQI (US)
44AQI (US)
35AQI (US)
39AQI (US)
39AQI (US)
38AQI (US)
41AQI (US)
27AQI (US)
27AQI (US)
23AQI (US)
16AQI (US)
20AQI (US)
23AQI (US)
17AQI (US)
19AQI (US)
17AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
21AQI (US)
24AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
26AQI (US)
20AQI (US)
20AQI (US)
18AQI (US)
22AQI (US)
17AQI (US)
19AQI (US)
14AQI (US)
15AQI (US)
12AQI (US)
15AQI (US)
16AQI (US)
16AQI (US)
20AQI (US)
34AQI (US)
29AQI (US)
27AQI (US)
18AQI (US)
21AQI (US)
14AQI (US)
21AQI (US)
28AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
32AQI (US)
29AQI (US)
29AQI (US)
30AQI (US)
26AQI (US)
22AQI (US)
17AQI (US)
36AQI (US)
46AQI (US)
35AQI (US)
49AQI (US)
61AQI (US)
59AQI (US)
54AQI (US)
43AQI (US)
45AQI (US)
44AQI (US)
51AQI (US)
52AQI (US)
39AQI (US)
47AQI (US)
41AQI (US)
48AQI (US)
45AQI (US)
46AQI (US)
87AQI (US)
126AQI (US)
89AQI (US)
65AQI (US)
51AQI (US)
63AQI (US)
55AQI (US)
46AQI (US)
41AQI (US)
55AQI (US)
60AQI (US)
49AQI (US)
36AQI (US)
35AQI (US)
31AQI (US)
21AQI (US)
29AQI (US)
21AQI (US)
35AQI (US)
62AQI (US)
No. of days
202632AQI (US)
Highest AQI (US) recorded in
August62AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202531AQI (US)
Highest AQI (US) recorded in
January45AQI (US)
Lowest AQI (US) recorded in
May16AQI (US)
202420AQI (US)
Highest AQI (US) recorded in
January32AQI (US)
Lowest AQI (US) recorded in
June11AQI (US)
202319AQI (US)
Highest AQI (US) recorded in
November36AQI (US)
Lowest AQI (US) recorded in
April10AQI (US)
202237AQI (US)
Highest AQI (US) recorded in
October94AQI (US)
Lowest AQI (US) recorded in
June13AQI (US)
202124AQI (US)
Highest AQI (US) recorded in
December43AQI (US)
Lowest AQI (US) recorded in
September13AQI (US)
202026AQI (US)
Highest AQI (US) recorded in
September62AQI (US)
Lowest AQI (US) recorded in
June12AQI (US)
Most & Least Polluted Years Over the Last 7 Years
For St's annual 2026 AQI (US) (32) shows an average percentage change of 29.09% (worsened AQI (US)) compared to previous years: 2020 (26), 2021 (24), 2022 (37), 2023 (19), 2024 (20), 2025 (31).