Beaverton, 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
Beaverton, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 24 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Beaverton, Oregon, United States
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
28AQI
20AQI
49AQI
31AQI
In the last 24 hours,
Beaverton's AQI reached its highest point of 49 at 12 AM during the Night, while the lowest point, 20, was recorded at 7 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Beaverton, Oregon, United States
21°C14/31°C
23°C15/33°C
24°C16/34°C
21°C17/26°C
21°C17/26°C
23°C16/33°C
24°C17/32°C
26°C18/36°C
21°C15/29°C
24°C14/34°C
29°C21/37°C
23°C16/32°C
22°C16/29°C
20°C15/27°C
17°C14/22°C
20°C16/25°C
21°C15/29°C
24°C16/34°C
22°C16/31°C
19°C15/25°C
17°C13/21°C
20°C14/27°C
22°C14/31°C
24°C16/34°C
23°C17/33°C
22°C17/30°C
21°C16/30°C
19°C17/23°C
18°C14/22°C
19°C15/24°C
--°C/°C
20AQI
18AQI
20AQI
18AQI
2025 Days Vs Air Quality
Beaverton, Oregon, United States
98%
212
2%
4
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2025, 98% of 217 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
Beaverton, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI
23AQI
22AQI
20AQI
21AQI
21AQI
23AQI
30AQI
26AQI
29AQI
23AQI
32AQI
36AQI
43AQI
43AQI
48AQI
42AQI
33AQI
42AQI
30AQI
51AQI
52AQI
48AQI
42AQI
31AQI
25AQI
32AQI
44AQI
53AQI
66AQI
36AQI
19AQI
24AQI
22AQI
31AQI
26AQI
24AQI
24AQI
26AQI
39AQI
28AQI
23AQI
23AQI
22AQI
25AQI
38AQI
22AQI
18AQI
18AQI
18AQI
20AQI
22AQI
21AQI
15AQI
20AQI
19AQI
23AQI
24AQI
35AQI
39AQI
23AQI
23AQI
24AQI
33AQI
34AQI
34AQI
37AQI
37AQI
29AQI
46AQI
21AQI
19AQI
20AQI
19AQI
18AQI
19AQI
16AQI
18AQI
14AQI
15AQI
16AQI
15AQI
16AQI
20AQI
20AQI
16AQI
17AQI
15AQI
17AQI
16AQI
18AQI
17AQI
18AQI
20AQI
17AQI
18AQI
15AQI
16AQI
14AQI
17AQI
16AQI
15AQI
17AQI
18AQI
20AQI
21AQI
20AQI
20AQI
19AQI
17AQI
13AQI
14AQI
15AQI
19AQI
26AQI
23AQI
19AQI
13AQI
14AQI
16AQI
19AQI
20AQI
12AQI
13AQI
13AQI
16AQI
17AQI
15AQI
17AQI
18AQI
15AQI
16AQI
16AQI
17AQI
17AQI
18AQI
15AQI
13AQI
14AQI
11AQI
12AQI
15AQI
12AQI
15AQI
15AQI
13AQI
14AQI
17AQI
14AQI
16AQI
16AQI
14AQI
16AQI
17AQI
15AQI
15AQI
17AQI
16AQI
25AQI
26AQI
24AQI
27AQI
24AQI
17AQI
18AQI
18AQI
19AQI
17AQI
14AQI
15AQI
15AQI
11AQI
11AQI
18AQI
26AQI
27AQI
16AQI
13AQI
13AQI
16AQI
19AQI
18AQI
14AQI
13AQI
16AQI
22AQI
17AQI
17AQI
19AQI
15AQI
14AQI
17AQI
17AQI
18AQI
15AQI
19AQI
21AQI
27AQI
27AQI
19AQI
19AQI
21AQI
22AQI
20AQI
19AQI
16AQI
16AQI
20AQI
21AQI
18AQI
20AQI
21AQI
18AQI
17AQI
19AQI
24AQI
35AQI
24AQI
23AQI
18AQI
15AQI
18AQI
19AQI
20AQI
No. of days
202522AQI
Highest AQI recorded in
January35AQI
Lowest AQI recorded in
May15AQI
202418AQI
Highest AQI recorded in
November30AQI
Lowest AQI recorded in
May10AQI
202320AQI
Highest AQI recorded in
November31AQI
Lowest AQI recorded in
April11AQI
202225AQI
Highest AQI recorded in
October49AQI
Lowest AQI recorded in
May12AQI
202119AQI
Highest AQI recorded in
March24AQI
Lowest AQI recorded in
May13AQI
202037AQI
Highest AQI recorded in
September93AQI
Lowest AQI recorded in
July15AQI
Most & Least Polluted Years Over the Last 6 Years
Beaverton's annual 2025 AQI (22) shows an average percentage change of -2.6% (improved AQI) compared to previous years: 2020 (37), 2021 (19), 2022 (25), 2023 (20), 2024 (18).