Ridgefield, 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
Ridgefield, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (5th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 73 of Moderate air quality on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Ridgefield, Washington, United States
5 AM5th Aug 2026
8 PM
4 AM6th Aug 2026
85AQI
67AQI
81AQI
64AQI
In the last 24 hours,
Ridgefield's AQI reached its highest point of 85 at 5 PM during the Day, while the lowest point, 64, was recorded at 12 AM during the Night between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Ridgefield, Washington, United States
20°C15/28°C
19°C11/28°C
20°C13/28°C
18°C15/25°C
18°C11/27°C
21°C12/30°C
22°C13/32°C
22°C15/31°C
19°C16/24°C
18°C11/24°C
19°C12/28°C
21°C13/30°C
24°C15/33°C
27°C16/38°C
28°C21/40°C
21°C16/28°C
22°C15/32°C
19°C14/23°C
20°C15/28°C
21°C13/29°C
19°C14/26°C
20°C13/28°C
20°C12/29°C
22°C14/32°C
19°C15/23°C
18°C11/25°C
20°C12/30°C
24°C14/35°C
25°C15/35°C
24°C15/34°C
55AQI
46AQI
49AQI
45AQI
2026 Days Vs Air Quality
Ridgefield, Washington, United States
88%
188
12%
26
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2026, 88% of 218 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
Ridgefield, Washington, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI (US)
21AQI (US)
22AQI (US)
11AQI (US)
21AQI (US)
24AQI (US)
9AQI (US)
14AQI (US)
14AQI (US)
25AQI (US)
31AQI (US)
23AQI (US)
35AQI (US)
26AQI (US)
27AQI (US)
18AQI (US)
19AQI (US)
22AQI (US)
18AQI (US)
25AQI (US)
26AQI (US)
49AQI (US)
54AQI (US)
48AQI (US)
47AQI (US)
47AQI (US)
45AQI (US)
47AQI (US)
52AQI (US)
48AQI (US)
45AQI (US)
49AQI (US)
50AQI (US)
49AQI (US)
48AQI (US)
48AQI (US)
41AQI (US)
42AQI (US)
46AQI (US)
46AQI (US)
48AQI (US)
47AQI (US)
47AQI (US)
54AQI (US)
50AQI (US)
41AQI (US)
45AQI (US)
47AQI (US)
42AQI (US)
43AQI (US)
43AQI (US)
38AQI (US)
38AQI (US)
40AQI (US)
44AQI (US)
40AQI (US)
35AQI (US)
34AQI (US)
39AQI (US)
43AQI (US)
54AQI (US)
46AQI (US)
45AQI (US)
43AQI (US)
38AQI (US)
41AQI (US)
40AQI (US)
41AQI (US)
35AQI (US)
42AQI (US)
41AQI (US)
41AQI (US)
36AQI (US)
37AQI (US)
37AQI (US)
34AQI (US)
33AQI (US)
32AQI (US)
37AQI (US)
36AQI (US)
36AQI (US)
40AQI (US)
40AQI (US)
35AQI (US)
35AQI (US)
35AQI (US)
36AQI (US)
30AQI (US)
27AQI (US)
26AQI (US)
34AQI (US)
35AQI (US)
29AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
28AQI (US)
32AQI (US)
29AQI (US)
33AQI (US)
34AQI (US)
30AQI (US)
34AQI (US)
38AQI (US)
34AQI (US)
32AQI (US)
33AQI (US)
34AQI (US)
31AQI (US)
29AQI (US)
27AQI (US)
31AQI (US)
33AQI (US)
33AQI (US)
28AQI (US)
24AQI (US)
24AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
23AQI (US)
29AQI (US)
33AQI (US)
32AQI (US)
29AQI (US)
28AQI (US)
34AQI (US)
31AQI (US)
29AQI (US)
30AQI (US)
26AQI (US)
43AQI (US)
51AQI (US)
58AQI (US)
52AQI (US)
52AQI (US)
44AQI (US)
38AQI (US)
48AQI (US)
48AQI (US)
39AQI (US)
41AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
28AQI (US)
29AQI (US)
31AQI (US)
31AQI (US)
29AQI (US)
25AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
24AQI (US)
24AQI (US)
22AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
30AQI (US)
27AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
25AQI (US)
28AQI (US)
30AQI (US)
27AQI (US)
29AQI (US)
32AQI (US)
31AQI (US)
29AQI (US)
31AQI (US)
30AQI (US)
27AQI (US)
29AQI (US)
53AQI (US)
60AQI (US)
55AQI (US)
59AQI (US)
56AQI (US)
53AQI (US)
46AQI (US)
59AQI (US)
59AQI (US)
59AQI (US)
61AQI (US)
57AQI (US)
53AQI (US)
64AQI (US)
58AQI (US)
49AQI (US)
52AQI (US)
61AQI (US)
71AQI (US)
73AQI (US)
31AQI (US)
44AQI (US)
38AQI (US)
31AQI (US)
35AQI (US)
26AQI (US)
42AQI (US)
61AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
August61AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202525AQI (US)
Highest AQI (US) recorded in
October36AQI (US)
Lowest AQI (US) recorded in
May16AQI (US)
202422AQI (US)
Highest AQI (US) recorded in
November28AQI (US)
Lowest AQI (US) recorded in
May16AQI (US)
202324AQI (US)
Highest AQI (US) recorded in
August35AQI (US)
Lowest AQI (US) recorded in
April14AQI (US)
202229AQI (US)
Highest AQI (US) recorded in
October56AQI (US)
Lowest AQI (US) recorded in
April18AQI (US)
202123AQI (US)
Highest AQI (US) recorded in
June27AQI (US)
Lowest AQI (US) recorded in
February18AQI (US)
202031AQI (US)
Highest AQI (US) recorded in
September85AQI (US)
Lowest AQI (US) recorded in
March12AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Ridgefield's annual 2026 AQI (US) (36) shows an average percentage change of 42.4% (worsened AQI (US)) compared to previous years: 2020 (31), 2021 (23), 2022 (29), 2023 (24), 2024 (22), 2025 (25).