Grants Pass, Grants Pass, 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
Grants Pass, Grants Pass, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 19 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Aug - 21st Aug 2025
Grants Pass, Grants Pass, Oregon, United States
6 AM20th Aug 2025
8 PM
5 AM21st Aug 2025
23AQI
18AQI
19AQI
16AQI
In the last 24 hours,
Grants Pass's AQI reached its highest point of 23 at 3 PM during the Day, while the lowest point, 16, was recorded at 3 AM during the Night between 20th Aug and 21st Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Grants Pass, Grants Pass, Oregon, United States
21°C11/31°C
24°C14/34°C
23°C15/34°C
23°C15/33°C
21°C13/31°C
21°C13/31°C
22°C13/33°C
23°C13/34°C
23°C14/33°C
23°C17/33°C
22°C14/33°C
21°C13/32°C
19°C10/29°C
18°C8/28°C
20°C11/31°C
20°C13/30°C
21°C14/30°C
20°C11/31°C
23°C13/35°C
28°C16/41°C
30°C17/41°C
28°C19/40°C
26°C18/36°C
20°C14/29°C
21°C13/31°C
20°C16/26°C
19°C15/25°C
19°C15/25°C
20°C11/31°C
23°C16/32°C
--°C/°C
23AQI
20AQI
22AQI
21AQI
2025 Days Vs Air Quality
Grants Pass, Grants Pass, Oregon, United States
96%
223
4%
9
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 233 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
Grants Pass, Grants Pass, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI
26AQI
27AQI
25AQI
26AQI
34AQI
34AQI
33AQI
38AQI
35AQI
35AQI
38AQI
40AQI
45AQI
47AQI
48AQI
36AQI
36AQI
49AQI
45AQI
62AQI
64AQI
64AQI
58AQI
50AQI
49AQI
73AQI
69AQI
73AQI
69AQI
52AQI
43AQI
44AQI
46AQI
48AQI
40AQI
44AQI
41AQI
37AQI
36AQI
40AQI
43AQI
43AQI
33AQI
23AQI
24AQI
27AQI
35AQI
38AQI
35AQI
28AQI
35AQI
44AQI
30AQI
30AQI
27AQI
33AQI
38AQI
41AQI
40AQI
26AQI
29AQI
29AQI
25AQI
22AQI
34AQI
35AQI
29AQI
32AQI
41AQI
27AQI
21AQI
23AQI
21AQI
18AQI
18AQI
23AQI
24AQI
17AQI
19AQI
17AQI
24AQI
27AQI
31AQI
37AQI
23AQI
21AQI
20AQI
29AQI
20AQI
20AQI
20AQI
18AQI
29AQI
31AQI
31AQI
18AQI
17AQI
26AQI
27AQI
15AQI
15AQI
29AQI
32AQI
31AQI
28AQI
28AQI
26AQI
26AQI
24AQI
17AQI
18AQI
17AQI
27AQI
16AQI
15AQI
17AQI
25AQI
17AQI
19AQI
24AQI
25AQI
12AQI
14AQI
17AQI
23AQI
27AQI
17AQI
31AQI
22AQI
14AQI
15AQI
15AQI
19AQI
21AQI
17AQI
13AQI
18AQI
15AQI
11AQI
14AQI
16AQI
18AQI
23AQI
17AQI
13AQI
16AQI
20AQI
16AQI
19AQI
24AQI
16AQI
16AQI
18AQI
18AQI
18AQI
21AQI
23AQI
28AQI
32AQI
32AQI
25AQI
29AQI
22AQI
21AQI
22AQI
21AQI
18AQI
16AQI
17AQI
15AQI
13AQI
12AQI
16AQI
24AQI
36AQI
18AQI
14AQI
14AQI
16AQI
20AQI
23AQI
18AQI
17AQI
18AQI
24AQI
21AQI
20AQI
28AQI
20AQI
16AQI
17AQI
20AQI
19AQI
19AQI
19AQI
34AQI
37AQI
28AQI
23AQI
17AQI
18AQI
16AQI
24AQI
24AQI
19AQI
15AQI
15AQI
16AQI
19AQI
20AQI
25AQI
31AQI
25AQI
21AQI
23AQI
24AQI
21AQI
18AQI
18AQI
20AQI
28AQI
31AQI
31AQI
41AQI
18AQI
19AQI
18AQI
16AQI
16AQI
18AQI
19AQI
45AQI
37AQI
26AQI
23AQI
18AQI
20AQI
21AQI
23AQI
No. of days
202527AQI
Highest AQI recorded in
January45AQI
Lowest AQI recorded in
May18AQI
202426AQI
Highest AQI recorded in
December42AQI
Lowest AQI recorded in
May13AQI
202332AQI
Highest AQI recorded in
August82AQI
Lowest AQI recorded in
June13AQI
202230AQI
Highest AQI recorded in
August70AQI
Lowest AQI recorded in
May11AQI
202130AQI
Highest AQI recorded in
August64AQI
Lowest AQI recorded in
May11AQI
202034AQI
Highest AQI recorded in
September105AQI
Lowest AQI recorded in
June10AQI
Most & Least Polluted Years Over the Last 6 Years
Grants Pass's annual 2025 AQI (27) shows an average percentage change of -11.4% (improved AQI) compared to previous years: 2020 (34), 2021 (30), 2022 (30), 2023 (32), 2024 (26).