Oakridge Willamette Activity Center, Cottage Grove, 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
Oakridge Willamette Activity Center, Cottage Grove, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (13th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 37 of Good air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Aug - 14th Aug 2025
Oakridge Willamette Activity Center, Cottage Grove, Oregon, United States
5 AM13th Aug 2025
8 PM
4 AM14th Aug 2025
50AQI
30AQI
36AQI
18AQI
In the last 24 hours,
Oakridge Willamette Activity Center's AQI reached its highest point of 50 at 12 PM during the Day, while the lowest point, undefined, was recorded at 4 AM during the Night between 13th Aug and 14th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Oakridge Willamette Activity Center, Cottage Grove, Oregon, United States
20°C10/30°C
24°C17/31°C
22°C16/27°C
21°C15/27°C
19°C11/25°C
19°C15/24°C
15°C11/20°C
17°C9/25°C
19°C11/28°C
18°C11/27°C
18°C12/25°C
15°C10/22°C
17°C8/24°C
18°C11/26°C
20°C14/28°C
20°C11/27°C
21°C16/27°C
19°C10/26°C
17°C10/24°C
13°C8/20°C
14°C8/21°C
16°C8/24°C
16°C10/23°C
15°C11/22°C
16°C9/25°C
19°C11/28°C
25°C15/36°C
25°C14/34°C
25°C17/33°C
22°C16/28°C
--°C/°C
29AQI
25AQI
24AQI
24AQI
2025 Days Vs Air Quality
Oakridge Willamette Activity Center, Cottage Grove, Oregon, United States
92%
208
8%
17
Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2025, 92% of 226 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
Oakridge Willamette Activity Center, Cottage Grove, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI
49AQI
41AQI
24AQI
27AQI
49AQI
60AQI
32AQI
40AQI
56AQI
40AQI
30AQI
41AQI
40AQI
52AQI
44AQI
27AQI
28AQI
55AQI
76AQI
74AQI
75AQI
76AQI
71AQI
74AQI
86AQI
82AQI
70AQI
66AQI
64AQI
45AQI
33AQI
27AQI
45AQI
67AQI
40AQI
47AQI
28AQI
33AQI
26AQI
28AQI
41AQI
66AQI
50AQI
35AQI
27AQI
24AQI
30AQI
26AQI
23AQI
28AQI
30AQI
38AQI
21AQI
23AQI
22AQI
31AQI
33AQI
38AQI
39AQI
23AQI
21AQI
22AQI
24AQI
24AQI
31AQI
46AQI
36AQI
27AQI
26AQI
19AQI
18AQI
20AQI
17AQI
31AQI
49AQI
17AQI
18AQI
16AQI
19AQI
18AQI
19AQI
21AQI
21AQI
21AQI
17AQI
17AQI
14AQI
23AQI
17AQI
20AQI
18AQI
18AQI
30AQI
28AQI
29AQI
18AQI
13AQI
14AQI
18AQI
13AQI
17AQI
28AQI
31AQI
21AQI
26AQI
37AQI
26AQI
25AQI
27AQI
13AQI
21AQI
25AQI
32AQI
19AQI
16AQI
17AQI
16AQI
16AQI
27AQI
24AQI
22AQI
13AQI
16AQI
22AQI
21AQI
20AQI
14AQI
19AQI
18AQI
14AQI
14AQI
13AQI
15AQI
16AQI
14AQI
12AQI
12AQI
13AQI
11AQI
16AQI
13AQI
14AQI
15AQI
14AQI
15AQI
14AQI
16AQI
15AQI
15AQI
20AQI
12AQI
14AQI
17AQI
17AQI
17AQI
18AQI
18AQI
22AQI
30AQI
31AQI
27AQI
26AQI
20AQI
18AQI
20AQI
19AQI
18AQI
15AQI
16AQI
15AQI
12AQI
12AQI
16AQI
31AQI
30AQI
18AQI
14AQI
15AQI
16AQI
20AQI
24AQI
17AQI
16AQI
17AQI
19AQI
20AQI
19AQI
22AQI
17AQI
15AQI
17AQI
20AQI
19AQI
19AQI
19AQI
44AQI
43AQI
28AQI
21AQI
18AQI
19AQI
20AQI
25AQI
25AQI
20AQI
17AQI
16AQI
17AQI
19AQI
19AQI
30AQI
41AQI
27AQI
23AQI
24AQI
26AQI
19AQI
17AQI
25AQI
24AQI
24AQI
33AQI
28AQI
37AQI
53AQI
34AQI
24AQI
22AQI
16AQI
19AQI
21AQI
27AQI
No. of days
202527AQI
Highest AQI recorded in
January53AQI
Lowest AQI recorded in
May16AQI
202427AQI
Highest AQI recorded in
December41AQI
Lowest AQI recorded in
June11AQI
202330AQI
Highest AQI recorded in
August80AQI
Lowest AQI recorded in
April14AQI
202246AQI
Highest AQI recorded in
October156AQI
Lowest AQI recorded in
May9AQI
202133AQI
Highest AQI recorded in
August82AQI
Lowest AQI recorded in
May15AQI
202039AQI
Highest AQI recorded in
September121AQI
Lowest AQI recorded in
May15AQI
Most & Least Polluted Years Over the Last 6 Years
Oakridge Willamette Activity Center's annual 2025 AQI (27) shows an average percentage change of -20.5% (improved AQI) compared to previous years: 2020 (39), 2021 (33), 2022 (46), 2023 (30), 2024 (27).