Prosser, 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
Prosser, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 99 of Moderate air quality on the same day.
Day & Night AQI Trend: 3rd Aug - 4th Aug 2026
Prosser, Washington, United States
5 AM3rd Aug 2026
8 PM
4 AM4th Aug 2026
144AQI
48AQI
154AQI
140AQI
In the last 24 hours,
Prosser's AQI reached its highest point of 154 at 3 AM during the Night, while the lowest point, 48, was recorded at 10 AM during the Day between 3rd Aug and 4th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Prosser, Washington, United States
26°C14/35°C
28°C16/38°C
27°C20/34°C
27°C17/35°C
27°C18/36°C
26°C19/34°C
24°C18/31°C
26°C14/36°C
29°C20/37°C
30°C22/39°C
30°C22/37°C
26°C18/36°C
25°C16/33°C
26°C16/34°C
26°C19/33°C
28°C18/38°C
31°C19/40°C
31°C23/39°C
29°C19/38°C
27°C20/35°C
24°C15/34°C
25°C15/34°C
26°C18/34°C
24°C15/32°C
26°C15/34°C
27°C17/36°C
26°C19/34°C
20°C13/28°C
21°C13/29°C
22°C13/32°C
58AQI
46AQI
62AQI
48AQI
2026 Days Vs Air Quality
Prosser, Washington, United States
89%
188
11%
24
Total number of days with different AQI categories in last 216 days in 2026 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2026, 89% of 216 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
Prosser, Washington, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
74AQI (US)
57AQI (US)
48AQI (US)
28AQI (US)
22AQI (US)
24AQI (US)
17AQI (US)
22AQI (US)
22AQI (US)
44AQI (US)
56AQI (US)
53AQI (US)
47AQI (US)
43AQI (US)
40AQI (US)
32AQI (US)
32AQI (US)
28AQI (US)
22AQI (US)
23AQI (US)
25AQI (US)
37AQI (US)
39AQI (US)
34AQI (US)
38AQI (US)
36AQI (US)
27AQI (US)
31AQI (US)
37AQI (US)
47AQI (US)
27AQI (US)
42AQI (US)
47AQI (US)
42AQI (US)
36AQI (US)
40AQI (US)
28AQI (US)
28AQI (US)
39AQI (US)
44AQI (US)
31AQI (US)
28AQI (US)
23AQI (US)
24AQI (US)
30AQI (US)
28AQI (US)
40AQI (US)
30AQI (US)
33AQI (US)
28AQI (US)
28AQI (US)
25AQI (US)
26AQI (US)
30AQI (US)
41AQI (US)
29AQI (US)
27AQI (US)
30AQI (US)
27AQI (US)
32AQI (US)
47AQI (US)
29AQI (US)
37AQI (US)
30AQI (US)
27AQI (US)
35AQI (US)
50AQI (US)
31AQI (US)
30AQI (US)
38AQI (US)
55AQI (US)
42AQI (US)
34AQI (US)
26AQI (US)
21AQI (US)
27AQI (US)
31AQI (US)
26AQI (US)
41AQI (US)
35AQI (US)
31AQI (US)
29AQI (US)
28AQI (US)
28AQI (US)
18AQI (US)
16AQI (US)
20AQI (US)
12AQI (US)
29AQI (US)
18AQI (US)
22AQI (US)
22AQI (US)
20AQI (US)
28AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
23AQI (US)
21AQI (US)
24AQI (US)
30AQI (US)
22AQI (US)
39AQI (US)
32AQI (US)
33AQI (US)
29AQI (US)
19AQI (US)
19AQI (US)
24AQI (US)
36AQI (US)
20AQI (US)
21AQI (US)
19AQI (US)
27AQI (US)
17AQI (US)
28AQI (US)
19AQI (US)
24AQI (US)
23AQI (US)
22AQI (US)
23AQI (US)
32AQI (US)
31AQI (US)
51AQI (US)
20AQI (US)
45AQI (US)
26AQI (US)
21AQI (US)
26AQI (US)
62AQI (US)
24AQI (US)
42AQI (US)
48AQI (US)
54AQI (US)
47AQI (US)
44AQI (US)
46AQI (US)
37AQI (US)
41AQI (US)
46AQI (US)
42AQI (US)
44AQI (US)
19AQI (US)
15AQI (US)
24AQI (US)
39AQI (US)
16AQI (US)
19AQI (US)
20AQI (US)
14AQI (US)
24AQI (US)
18AQI (US)
32AQI (US)
18AQI (US)
22AQI (US)
21AQI (US)
45AQI (US)
28AQI (US)
20AQI (US)
21AQI (US)
12AQI (US)
17AQI (US)
25AQI (US)
52AQI (US)
26AQI (US)
19AQI (US)
27AQI (US)
36AQI (US)
17AQI (US)
22AQI (US)
32AQI (US)
25AQI (US)
32AQI (US)
40AQI (US)
23AQI (US)
29AQI (US)
32AQI (US)
17AQI (US)
15AQI (US)
15AQI (US)
19AQI (US)
21AQI (US)
18AQI (US)
25AQI (US)
21AQI (US)
19AQI (US)
17AQI (US)
22AQI (US)
36AQI (US)
24AQI (US)
19AQI (US)
31AQI (US)
33AQI (US)
40AQI (US)
77AQI (US)
41AQI (US)
40AQI (US)
53AQI (US)
66AQI (US)
83AQI (US)
78AQI (US)
55AQI (US)
63AQI (US)
58AQI (US)
61AQI (US)
63AQI (US)
50AQI (US)
58AQI (US)
56AQI (US)
68AQI (US)
53AQI (US)
99AQI (US)
36AQI (US)
32AQI (US)
31AQI (US)
24AQI (US)
34AQI (US)
26AQI (US)
41AQI (US)
73AQI (US)
No. of days
202633AQI (US)
Highest AQI (US) recorded in
August73AQI (US)
Lowest AQI (US) recorded in
April24AQI (US)
202533AQI (US)
Highest AQI (US) recorded in
September55AQI (US)
Lowest AQI (US) recorded in
May18AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Prosser's annual 2026 AQI (US) (33) shows an average percentage change of 0% (No Change AQI (US)) compared to previous years: 2025 (33).