The Dalles, Oregon, 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
The Dalles, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (3rd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 86 of Moderate air quality on the same day.
Day & Night AQI Trend: 3rd Aug - 4th Aug 2026
The Dalles, Oregon, United States
5 AM3rd Aug 2026
8 PM
4 AM4th Aug 2026
152AQI
50AQI
150AQI
138AQI
In the last 24 hours,
The Dalles's AQI reached its highest point of 152 at 8 PM during the Day, while the lowest point, 50, was recorded at 5 AM during the Day between 3rd Aug and 4th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
The Dalles, Oregon, United States
27°C15/37°C
27°C18/34°C
24°C16/31°C
25°C17/33°C
25°C17/32°C
23°C17/29°C
23°C16/31°C
26°C15/35°C
28°C21/37°C
29°C21/38°C
24°C17/30°C
22°C14/30°C
24°C15/32°C
26°C16/35°C
27°C20/34°C
28°C15/40°C
31°C20/43°C
26°C20/32°C
27°C18/37°C
24°C18/29°C
23°C15/31°C
24°C16/33°C
24°C18/30°C
24°C16/33°C
24°C16/32°C
26°C17/35°C
22°C17/27°C
21°C13/27°C
21°C13/30°C
23°C11/33°C
53AQI
42AQI
51AQI
44AQI
2026 Days Vs Air Quality
The Dalles, Oregon, United States
92%
194
8%
18
Total number of days with different AQI categories in last 216 days in 2026 (149 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2026, 92% of 216 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
The Dalles, Oregon, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
57AQI (US)
51AQI (US)
48AQI (US)
31AQI (US)
21AQI (US)
25AQI (US)
24AQI (US)
17AQI (US)
19AQI (US)
36AQI (US)
41AQI (US)
39AQI (US)
35AQI (US)
42AQI (US)
48AQI (US)
32AQI (US)
31AQI (US)
28AQI (US)
28AQI (US)
29AQI (US)
29AQI (US)
34AQI (US)
33AQI (US)
31AQI (US)
29AQI (US)
33AQI (US)
36AQI (US)
39AQI (US)
43AQI (US)
39AQI (US)
24AQI (US)
38AQI (US)
32AQI (US)
27AQI (US)
23AQI (US)
34AQI (US)
25AQI (US)
20AQI (US)
26AQI (US)
25AQI (US)
25AQI (US)
35AQI (US)
28AQI (US)
36AQI (US)
35AQI (US)
36AQI (US)
40AQI (US)
28AQI (US)
31AQI (US)
29AQI (US)
31AQI (US)
28AQI (US)
28AQI (US)
33AQI (US)
41AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
29AQI (US)
32AQI (US)
40AQI (US)
30AQI (US)
29AQI (US)
28AQI (US)
26AQI (US)
30AQI (US)
28AQI (US)
31AQI (US)
27AQI (US)
35AQI (US)
33AQI (US)
39AQI (US)
34AQI (US)
31AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
25AQI (US)
29AQI (US)
34AQI (US)
32AQI (US)
20AQI (US)
35AQI (US)
26AQI (US)
24AQI (US)
19AQI (US)
21AQI (US)
18AQI (US)
24AQI (US)
17AQI (US)
24AQI (US)
28AQI (US)
22AQI (US)
29AQI (US)
26AQI (US)
22AQI (US)
18AQI (US)
19AQI (US)
22AQI (US)
25AQI (US)
29AQI (US)
25AQI (US)
25AQI (US)
23AQI (US)
32AQI (US)
28AQI (US)
18AQI (US)
19AQI (US)
21AQI (US)
21AQI (US)
22AQI (US)
22AQI (US)
24AQI (US)
26AQI (US)
15AQI (US)
18AQI (US)
17AQI (US)
21AQI (US)
20AQI (US)
19AQI (US)
21AQI (US)
23AQI (US)
24AQI (US)
19AQI (US)
17AQI (US)
21AQI (US)
23AQI (US)
16AQI (US)
23AQI (US)
24AQI (US)
24AQI (US)
45AQI (US)
52AQI (US)
57AQI (US)
52AQI (US)
48AQI (US)
48AQI (US)
34AQI (US)
42AQI (US)
39AQI (US)
41AQI (US)
43AQI (US)
26AQI (US)
24AQI (US)
17AQI (US)
17AQI (US)
20AQI (US)
24AQI (US)
18AQI (US)
13AQI (US)
18AQI (US)
22AQI (US)
18AQI (US)
24AQI (US)
24AQI (US)
22AQI (US)
19AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
31AQI (US)
19AQI (US)
17AQI (US)
18AQI (US)
20AQI (US)
17AQI (US)
14AQI (US)
13AQI (US)
18AQI (US)
18AQI (US)
21AQI (US)
20AQI (US)
23AQI (US)
24AQI (US)
17AQI (US)
22AQI (US)
24AQI (US)
14AQI (US)
24AQI (US)
17AQI (US)
19AQI (US)
18AQI (US)
27AQI (US)
19AQI (US)
13AQI (US)
18AQI (US)
18AQI (US)
23AQI (US)
15AQI (US)
18AQI (US)
25AQI (US)
16AQI (US)
56AQI (US)
47AQI (US)
56AQI (US)
72AQI (US)
69AQI (US)
76AQI (US)
67AQI (US)
58AQI (US)
77AQI (US)
48AQI (US)
50AQI (US)
53AQI (US)
48AQI (US)
48AQI (US)
54AQI (US)
56AQI (US)
55AQI (US)
86AQI (US)
34AQI (US)
30AQI (US)
28AQI (US)
23AQI (US)
30AQI (US)
21AQI (US)
38AQI (US)
66AQI (US)
No. of days
202630AQI (US)
Highest AQI (US) recorded in
August66AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202528AQI (US)
Highest AQI (US) recorded in
November41AQI (US)
Lowest AQI (US) recorded in
May16AQI (US)
202423AQI (US)
Highest AQI (US) recorded in
August32AQI (US)
Lowest AQI (US) recorded in
April13AQI (US)
202324AQI (US)
Highest AQI (US) recorded in
August45AQI (US)
Lowest AQI (US) recorded in
April15AQI (US)
202224AQI (US)
Highest AQI (US) recorded in
November38AQI (US)
Lowest AQI (US) recorded in
May12AQI (US)
202123AQI (US)
Highest AQI (US) recorded in
August36AQI (US)
Lowest AQI (US) recorded in
May13AQI (US)
202028AQI (US)
Highest AQI (US) recorded in
September76AQI (US)
Lowest AQI (US) recorded in
June14AQI (US)
Most & Least Polluted Years Over the Last 7 Years
The Dalles's annual 2026 AQI (US) (30) shows an average percentage change of 20.8% (worsened AQI (US)) compared to previous years: 2020 (28), 2021 (23), 2022 (24), 2023 (24), 2024 (23), 2025 (28).