Northgate, Salem, 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
Northgate, Salem, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (7th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 16 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Northgate, Salem, Oregon, United States
5 AM6th Aug 2025
8 PM
4 AM7th Aug 2025
20AQI
14AQI
19AQI
15AQI
In the last 24 hours,
Northgate's AQI reached its highest point of 20 at 11 AM during the Day, while the lowest point, 14, was recorded at 6 PM during the Day between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Northgate, Salem, Oregon, United States
--°C/°C
19°C14/27°C
20°C16/25°C
22°C13/33°C
23°C15/33°C
25°C16/36°C
22°C13/31°C
22°C11/34°C
26°C15/37°C
21°C11/31°C
19°C12/29°C
19°C13/29°C
17°C11/23°C
19°C15/25°C
20°C11/31°C
23°C13/34°C
21°C13/31°C
19°C11/28°C
17°C11/21°C
18°C12/26°C
20°C10/31°C
23°C12/35°C
23°C14/34°C
22°C14/32°C
22°C14/32°C
19°C13/24°C
18°C15/22°C
18°C13/24°C
19°C10/30°C
19°C15/26°C
20°C15/25°C
19AQI
18AQI
19AQI
18AQI
2025 Days Vs Air Quality
Northgate, Salem, Oregon, United States
100%
135
Total number of days with different AQI categories in last 220 days in 2025 (145 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 220 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
Northgate, Salem, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
18AQI
16AQI
17AQI
15AQI
23AQI
16AQI
23AQI
17AQI
18AQI
26AQI
36AQI
22AQI
14AQI
13AQI
16AQI
26AQI
18AQI
18AQI
21AQI
20AQI
28AQI
23AQI
25AQI
24AQI
20AQI
18AQI
15AQI
15AQI
20AQI
26AQI
27AQI
24AQI
17AQI
13AQI
14AQI
19AQI
31AQI
21AQI
13AQI
15AQI
16AQI
20AQI
21AQI
17AQI
21AQI
18AQI
14AQI
19AQI
15AQI
18AQI
19AQI
22AQI
14AQI
15AQI
17AQI
12AQI
14AQI
15AQI
15AQI
18AQI
15AQI
14AQI
16AQI
22AQI
14AQI
19AQI
17AQI
15AQI
17AQI
19AQI
15AQI
16AQI
19AQI
17AQI
26AQI
27AQI
25AQI
26AQI
24AQI
19AQI
18AQI
20AQI
19AQI
17AQI
14AQI
15AQI
15AQI
11AQI
12AQI
22AQI
30AQI
27AQI
15AQI
13AQI
14AQI
17AQI
22AQI
18AQI
14AQI
13AQI
16AQI
21AQI
17AQI
18AQI
20AQI
15AQI
14AQI
17AQI
18AQI
18AQI
15AQI
18AQI
22AQI
24AQI
24AQI
18AQI
19AQI
20AQI
21AQI
19AQI
16AQI
17AQI
15AQI
19AQI
18AQI
17AQI
20AQI
21AQI
18AQI
17AQI
20AQI
24AQI
26AQI
19AQI
16AQI
18AQI
21AQI
17AQI
19AQI
18AQI
20AQI
No. of days
202519AQI
Highest AQI recorded in
April21AQI
Lowest AQI recorded in
May17AQI
Most & Least Polluted Years Over the Last 1 Years
Northgate's annual 2025 AQI (19) shows an average percentage change of NaN% (improved AQI) compared to previous years: .