Vancouver, 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
Vancouver, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 37 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Vancouver, Washington, United States
5 AM5th Aug 2025
8 PM
4 AM6th Aug 2025
46AQI
37AQI
44AQI
40AQI
In the last 24 hours,
Vancouver's AQI reached its highest point of 46 at 6 PM during the Day, while the lowest point, 37, was recorded at 12 PM during the Day between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Vancouver, Washington, United States
23°C14/32°C
22°C15/32°C
20°C17/24°C
20°C16/24°C
23°C15/32°C
23°C16/32°C
26°C18/36°C
19°C16/25°C
23°C13/34°C
28°C20/37°C
23°C15/31°C
20°C16/27°C
18°C14/23°C
17°C13/21°C
19°C15/23°C
20°C14/28°C
22°C15/33°C
20°C15/30°C
18°C14/22°C
17°C12/21°C
19°C13/27°C
21°C13/31°C
24°C15/34°C
22°C16/32°C
20°C16/29°C
20°C16/29°C
19°C16/22°C
18°C14/22°C
18°C14/24°C
20°C14/27°C
--°C/°C
25AQI
25AQI
25AQI
25AQI
2025 Days Vs Air Quality
Vancouver, Washington, United States
96%
208
4%
9
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 218 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
Vancouver, Washington, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI
24AQI
21AQI
20AQI
20AQI
20AQI
28AQI
32AQI
34AQI
29AQI
19AQI
27AQI
33AQI
39AQI
38AQI
52AQI
42AQI
31AQI
54AQI
32AQI
56AQI
62AQI
59AQI
44AQI
41AQI
31AQI
51AQI
58AQI
63AQI
67AQI
33AQI
21AQI
30AQI
22AQI
29AQI
28AQI
24AQI
26AQI
26AQI
41AQI
30AQI
22AQI
31AQI
23AQI
30AQI
41AQI
19AQI
18AQI
20AQI
19AQI
22AQI
25AQI
20AQI
15AQI
19AQI
19AQI
30AQI
36AQI
40AQI
44AQI
28AQI
27AQI
23AQI
26AQI
35AQI
30AQI
36AQI
34AQI
26AQI
38AQI
20AQI
17AQI
20AQI
19AQI
17AQI
22AQI
20AQI
18AQI
14AQI
15AQI
20AQI
18AQI
15AQI
23AQI
21AQI
16AQI
16AQI
16AQI
33AQI
16AQI
22AQI
17AQI
23AQI
30AQI
21AQI
28AQI
15AQI
14AQI
17AQI
22AQI
16AQI
17AQI
17AQI
22AQI
27AQI
22AQI
26AQI
23AQI
23AQI
17AQI
14AQI
15AQI
18AQI
23AQI
28AQI
28AQI
23AQI
13AQI
14AQI
16AQI
23AQI
25AQI
13AQI
14AQI
15AQI
20AQI
17AQI
15AQI
21AQI
19AQI
14AQI
15AQI
14AQI
23AQI
18AQI
17AQI
19AQI
12AQI
15AQI
11AQI
13AQI
16AQI
14AQI
18AQI
14AQI
14AQI
17AQI
22AQI
13AQI
18AQI
15AQI
14AQI
16AQI
22AQI
16AQI
15AQI
18AQI
18AQI
30AQI
33AQI
35AQI
42AQI
34AQI
24AQI
23AQI
22AQI
19AQI
19AQI
15AQI
16AQI
17AQI
12AQI
12AQI
23AQI
29AQI
28AQI
16AQI
13AQI
13AQI
16AQI
22AQI
19AQI
14AQI
14AQI
17AQI
21AQI
16AQI
18AQI
23AQI
15AQI
14AQI
17AQI
18AQI
19AQI
15AQI
21AQI
22AQI
33AQI
31AQI
20AQI
19AQI
18AQI
20AQI
20AQI
21AQI
18AQI
19AQI
22AQI
24AQI
19AQI
22AQI
21AQI
18AQI
16AQI
20AQI
27AQI
37AQI
38AQI
26AQI
23AQI
20AQI
17AQI
21AQI
20AQI
24AQI
No. of days
202524AQI
Highest AQI recorded in
January38AQI
Lowest AQI recorded in
May17AQI
202420AQI
Highest AQI recorded in
December31AQI
Lowest AQI recorded in
May13AQI
202326AQI
Highest AQI recorded in
November42AQI
Lowest AQI recorded in
April17AQI
202230AQI
Highest AQI recorded in
October53AQI
Lowest AQI recorded in
May16AQI
202124AQI
Highest AQI recorded in
March37AQI
Lowest AQI recorded in
July14AQI
202038AQI
Highest AQI recorded in
September118AQI
Lowest AQI recorded in
June13AQI
Most & Least Polluted Years Over the Last 6 Years
Vancouver's annual 2025 AQI (24) shows an average percentage change of -10.6% (improved AQI) compared to previous years: 2020 (38), 2021 (24), 2022 (30), 2023 (26), 2024 (20).