30Th Ave, Longview, 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
30Th Ave, Longview, 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 30 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
30Th Ave, Longview, Washington, United States
5 AM5th Aug 2025
8 PM
4 AM6th Aug 2025
40AQI
24AQI
28AQI
20AQI
In the last 24 hours,
30Th Ave's AQI reached its highest point of 40 at 4 PM during the Day, while the lowest point, 20, was recorded at 4 AM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
30Th Ave, Longview, Washington, United States
21°C11/30°C
20°C12/29°C
18°C15/20°C
18°C15/22°C
21°C13/29°C
22°C15/30°C
24°C15/33°C
16°C14/19°C
22°C11/31°C
25°C16/34°C
19°C13/28°C
16°C14/21°C
16°C13/20°C
15°C13/19°C
17°C13/22°C
18°C13/23°C
20°C14/29°C
17°C14/23°C
16°C14/20°C
15°C12/20°C
18°C13/23°C
19°C11/28°C
21°C12/30°C
20°C12/29°C
18°C15/23°C
18°C14/23°C
18°C16/20°C
17°C14/22°C
17°C13/22°C
18°C13/24°C
--°C/°C
20AQI
19AQI
20AQI
19AQI
2025 Days Vs Air Quality
30Th Ave, Longview, Washington, United States
97%
211
3%
6
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% 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
30Th Ave, Longview, Washington, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
27AQI
22AQI
19AQI
21AQI
21AQI
29AQI
25AQI
27AQI
22AQI
20AQI
25AQI
32AQI
34AQI
34AQI
44AQI
38AQI
36AQI
52AQI
47AQI
51AQI
50AQI
49AQI
43AQI
45AQI
46AQI
52AQI
59AQI
61AQI
56AQI
33AQI
18AQI
24AQI
22AQI
33AQI
27AQI
21AQI
23AQI
25AQI
35AQI
29AQI
23AQI
30AQI
25AQI
30AQI
29AQI
22AQI
21AQI
23AQI
19AQI
21AQI
21AQI
20AQI
16AQI
19AQI
18AQI
27AQI
30AQI
27AQI
36AQI
29AQI
19AQI
24AQI
21AQI
21AQI
21AQI
23AQI
28AQI
18AQI
22AQI
20AQI
17AQI
17AQI
16AQI
16AQI
20AQI
16AQI
19AQI
14AQI
14AQI
18AQI
18AQI
17AQI
20AQI
22AQI
16AQI
16AQI
15AQI
18AQI
15AQI
18AQI
17AQI
18AQI
21AQI
28AQI
21AQI
15AQI
12AQI
17AQI
19AQI
17AQI
18AQI
20AQI
18AQI
21AQI
23AQI
22AQI
22AQI
21AQI
16AQI
14AQI
14AQI
16AQI
21AQI
24AQI
23AQI
18AQI
14AQI
14AQI
14AQI
20AQI
19AQI
13AQI
15AQI
14AQI
18AQI
16AQI
17AQI
17AQI
16AQI
15AQI
16AQI
18AQI
18AQI
17AQI
19AQI
15AQI
12AQI
14AQI
11AQI
13AQI
14AQI
12AQI
14AQI
15AQI
14AQI
14AQI
17AQI
14AQI
15AQI
14AQI
15AQI
19AQI
19AQI
14AQI
15AQI
17AQI
17AQI
23AQI
26AQI
29AQI
28AQI
24AQI
18AQI
17AQI
18AQI
16AQI
17AQI
14AQI
15AQI
15AQI
11AQI
11AQI
15AQI
20AQI
25AQI
14AQI
13AQI
12AQI
16AQI
20AQI
17AQI
14AQI
13AQI
17AQI
20AQI
17AQI
18AQI
20AQI
16AQI
15AQI
18AQI
18AQI
22AQI
17AQI
21AQI
23AQI
30AQI
26AQI
20AQI
19AQI
21AQI
19AQI
18AQI
16AQI
16AQI
17AQI
21AQI
20AQI
18AQI
18AQI
18AQI
17AQI
17AQI
20AQI
28AQI
30AQI
37AQI
24AQI
20AQI
19AQI
15AQI
18AQI
19AQI
22AQI
No. of days
202522AQI
Highest AQI recorded in
January37AQI
Lowest AQI recorded in
May15AQI
202420AQI
Highest AQI recorded in
December28AQI
Lowest AQI recorded in
June11AQI
202321AQI
Highest AQI recorded in
November36AQI
Lowest AQI recorded in
June9AQI
202222AQI
Highest AQI recorded in
October45AQI
Lowest AQI recorded in
May9AQI
202118AQI
Highest AQI recorded in
January24AQI
Lowest AQI recorded in
May11AQI
202026AQI
Highest AQI recorded in
September73AQI
Lowest AQI recorded in
June10AQI
Most & Least Polluted Years Over the Last 6 Years
30Th Ave's annual 2025 AQI (22) shows an average percentage change of 3.08% (worsened AQI) compared to previous years: 2020 (26), 2021 (18), 2022 (22), 2023 (21), 2024 (20).