Northwest Reeder Road, Portland, 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
Northwest Reeder Road, Portland, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (9th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 19 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Northwest Reeder Road, Portland, Oregon, United States
5 AM10th Aug 2025
8 PM
4 AM11th Aug 2025
28AQI
22AQI
27AQI
21AQI
In the last 24 hours,
Northwest Reeder Road's AQI reached its highest point of 28 at 6 PM during the Day, while the lowest point, undefined, was recorded at 4 AM during the Night between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Northwest Reeder Road, Portland, Oregon, United States
21°C14/30°C
24°C16/34°C
16°C14/21°C
22°C12/32°C
26°C18/35°C
20°C13/29°C
18°C14/23°C
16°C12/23°C
15°C12/20°C
18°C14/24°C
18°C12/25°C
20°C13/31°C
18°C14/26°C
16°C14/21°C
15°C11/20°C
17°C12/23°C
19°C11/29°C
22°C13/32°C
20°C13/30°C
18°C15/24°C
18°C14/23°C
18°C15/21°C
17°C13/22°C
17°C11/22°C
19°C13/25°C
18°C14/22°C
18°C14/22°C
19°C13/28°C
21°C14/30°C
25°C17/35°C
--°C/°C
21AQI
19AQI
21AQI
21AQI
2025 Days Vs Air Quality
Northwest Reeder Road, Portland, Oregon, United States
100%
137
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 223 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
Northwest Reeder Road, Portland, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
19AQI
16AQI
16AQI
15AQI
18AQI
16AQI
21AQI
17AQI
17AQI
19AQI
19AQI
28AQI
17AQI
14AQI
15AQI
18AQI
16AQI
17AQI
20AQI
21AQI
21AQI
22AQI
21AQI
21AQI
20AQI
16AQI
14AQI
15AQI
16AQI
23AQI
27AQI
24AQI
17AQI
13AQI
15AQI
14AQI
24AQI
21AQI
13AQI
13AQI
14AQI
19AQI
18AQI
16AQI
18AQI
17AQI
14AQI
15AQI
15AQI
18AQI
17AQI
19AQI
17AQI
13AQI
15AQI
11AQI
13AQI
15AQI
13AQI
15AQI
14AQI
14AQI
14AQI
19AQI
13AQI
17AQI
16AQI
16AQI
18AQI
20AQI
14AQI
15AQI
18AQI
18AQI
27AQI
29AQI
29AQI
29AQI
25AQI
18AQI
18AQI
19AQI
18AQI
18AQI
15AQI
16AQI
15AQI
14AQI
15AQI
19AQI
26AQI
27AQI
16AQI
13AQI
12AQI
17AQI
19AQI
18AQI
15AQI
15AQI
16AQI
18AQI
17AQI
18AQI
20AQI
15AQI
15AQI
18AQI
18AQI
21AQI
17AQI
20AQI
24AQI
29AQI
27AQI
21AQI
19AQI
21AQI
21AQI
21AQI
17AQI
16AQI
16AQI
21AQI
21AQI
18AQI
19AQI
19AQI
17AQI
16AQI
20AQI
28AQI
35AQI
21AQI
17AQI
18AQI
19AQI
17AQI
19AQI
16AQI
19AQI
19AQI
21AQI
No. of days
202518AQI
Highest AQI recorded in
August21AQI
Lowest AQI recorded in
May16AQI
Most & Least Polluted Years Over the Last 1 Years
Northwest Reeder Road's annual 2025 AQI (18) shows an average percentage change of NaN% (improved AQI) compared to previous years: .