Brookings, Oregon, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Brookings, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (24th September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 40 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 25th Sep - 26th Sep 2025
Brookings, Oregon, United States
6 AM25th Sep 2025
7 PM
5 AM26th Sep 2025
52AQI
22AQI
75AQI
28AQI
In the last 24 hours,
Brookings's AQI reached its highest point of 75 at 10 PM during the Night, while the lowest point, 22, was recorded at 7 AM during the Day between 25th Sep and 26th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Brookings, Oregon, United States
16°C14/19°C
15°C13/18°C
15°C12/18°C
16°C13/20°C
16°C13/20°C
17°C15/21°C
18°C15/21°C
18°C15/21°C
17°C14/19°C
15°C14/17°C
15°C14/17°C
16°C14/18°C
16°C13/19°C
17°C15/19°C
16°C13/20°C
15°C13/19°C
16°C13/20°C
15°C13/18°C
17°C14/20°C
19°C15/25°C
18°C16/20°C
18°C15/23°C
19°C16/24°C
18°C16/21°C
16°C14/18°C
15°C13/19°C
18°C15/23°C
17°C12/22°C
15°C14/19°C
17°C13/23°C
--°C/°C
34AQI
29AQI
36AQI
32AQI
2025 Days Vs Air Quality
Brookings, Oregon, United States
100%
183
Total number of days with different AQI categories in last 269 days in 2025 (96 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 269 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
Brookings, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
21AQI
23AQI
21AQI
16AQI
19AQI
17AQI
18AQI
21AQI
19AQI
20AQI
19AQI
18AQI
16AQI
17AQI
19AQI
19AQI
19AQI
18AQI
22AQI
29AQI
28AQI
29AQI
31AQI
28AQI
32AQI
32AQI
21AQI
30AQI
27AQI
27AQI
22AQI
24AQI
19AQI
17AQI
18AQI
19AQI
24AQI
25AQI
18AQI
21AQI
21AQI
23AQI
27AQI
20AQI
25AQI
21AQI
25AQI
17AQI
17AQI
20AQI
21AQI
20AQI
15AQI
17AQI
18AQI
17AQI
19AQI
18AQI
18AQI
20AQI
18AQI
16AQI
19AQI
21AQI
19AQI
23AQI
24AQI
22AQI
24AQI
28AQI
25AQI
22AQI
22AQI
18AQI
19AQI
20AQI
23AQI
24AQI
27AQI
29AQI
25AQI
24AQI
21AQI
18AQI
17AQI
18AQI
22AQI
16AQI
15AQI
18AQI
20AQI
24AQI
17AQI
16AQI
16AQI
27AQI
27AQI
25AQI
21AQI
19AQI
20AQI
28AQI
23AQI
25AQI
21AQI
18AQI
19AQI
29AQI
30AQI
27AQI
23AQI
26AQI
23AQI
23AQI
23AQI
23AQI
20AQI
20AQI
18AQI
19AQI
17AQI
16AQI
15AQI
16AQI
21AQI
21AQI
21AQI
22AQI
21AQI
21AQI
22AQI
23AQI
24AQI
23AQI
20AQI
24AQI
28AQI
27AQI
27AQI
27AQI
26AQI
19AQI
23AQI
17AQI
18AQI
20AQI
21AQI
22AQI
26AQI
29AQI
28AQI
25AQI
29AQI
34AQI
27AQI
22AQI
23AQI
27AQI
24AQI
24AQI
25AQI
30AQI
39AQI
25AQI
23AQI
24AQI
26AQI
20AQI
26AQI
26AQI
24AQI
23AQI
19AQI
21AQI
26AQI
28AQI
28AQI
40AQI
33AQI
25AQI
25AQI
35AQI
40AQI
20AQI
23AQI
20AQI
21AQI
22AQI
24AQI
27AQI
No. of days
202523AQI
Highest AQI recorded in
September27AQI
Lowest AQI recorded in
March20AQI
Most & Least Polluted Years Over the Last 1 Years
Brookings's annual 2025 AQI (23) shows an average percentage change of NaN% (improved AQI) compared to previous years: .