John Day, Baker City, Oregon, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
John Day, Baker City, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (11th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 33 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Oct - 12th Oct 2025
John Day, Baker City, Oregon, United States
6 AM11th Oct 2025
6 PM
5 AM12th Oct 2025
56AQI
12AQI
37AQI
17AQI
In the last 24 hours,
John Day's AQI reached its highest point of 56 at 9 AM during the Day, while the lowest point, 12, was recorded at 7 AM during the Day between 11th Oct and 12th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
John Day, Baker City, Oregon, United States
--°C/°C
18°C7/26°C
14°C8/18°C
13°C6/21°C
16°C5/25°C
20°C11/28°C
21°C10/29°C
20°C10/29°C
21°C12/28°C
18°C10/25°C
14°C6/23°C
18°C8/28°C
20°C9/31°C
19°C12/29°C
15°C8/23°C
18°C7/28°C
21°C12/30°C
19°C13/25°C
15°C9/21°C
14°C10/19°C
13°C8/19°C
12°C7/17°C
10°C6/15°C
10°C5/17°C
10°C1/20°C
13°C3/22°C
16°C7/25°C
18°C12/25°C
15°C9/21°C
9°C5/13°C
8°C5/12°C
33AQI
27AQI
32AQI
27AQI
2025 Days Vs Air Quality
John Day, Baker City, Oregon, United States
90%
256
10%
28
Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 286 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
John Day, Baker City, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
38AQI
42AQI
39AQI
43AQI
33AQI
47AQI
56AQI
46AQI
60AQI
41AQI
40AQI
50AQI
55AQI
54AQI
51AQI
51AQI
58AQI
60AQI
43AQI
46AQI
46AQI
60AQI
48AQI
49AQI
45AQI
49AQI
51AQI
52AQI
51AQI
48AQI
34AQI
29AQI
32AQI
42AQI
33AQI
29AQI
34AQI
31AQI
37AQI
45AQI
39AQI
35AQI
40AQI
33AQI
44AQI
31AQI
37AQI
50AQI
58AQI
35AQI
44AQI
25AQI
31AQI
22AQI
41AQI
24AQI
41AQI
39AQI
32AQI
38AQI
31AQI
27AQI
43AQI
38AQI
39AQI
44AQI
36AQI
33AQI
26AQI
34AQI
23AQI
18AQI
31AQI
20AQI
16AQI
26AQI
21AQI
33AQI
24AQI
19AQI
16AQI
26AQI
25AQI
29AQI
23AQI
17AQI
19AQI
23AQI
34AQI
22AQI
34AQI
22AQI
40AQI
38AQI
24AQI
27AQI
22AQI
22AQI
26AQI
26AQI
19AQI
19AQI
29AQI
33AQI
26AQI
24AQI
23AQI
25AQI
25AQI
24AQI
15AQI
20AQI
20AQI
28AQI
29AQI
21AQI
25AQI
17AQI
14AQI
20AQI
17AQI
21AQI
19AQI
19AQI
24AQI
18AQI
16AQI
16AQI
18AQI
19AQI
17AQI
18AQI
15AQI
15AQI
20AQI
15AQI
24AQI
19AQI
24AQI
14AQI
16AQI
16AQI
16AQI
19AQI
19AQI
21AQI
19AQI
17AQI
20AQI
16AQI
19AQI
16AQI
15AQI
17AQI
18AQI
18AQI
20AQI
21AQI
22AQI
27AQI
29AQI
33AQI
29AQI
36AQI
23AQI
25AQI
26AQI
22AQI
21AQI
20AQI
21AQI
20AQI
19AQI
26AQI
27AQI
29AQI
23AQI
20AQI
18AQI
22AQI
21AQI
28AQI
29AQI
24AQI
22AQI
28AQI
24AQI
23AQI
28AQI
28AQI
23AQI
24AQI
26AQI
26AQI
31AQI
24AQI
21AQI
46AQI
44AQI
37AQI
34AQI
23AQI
27AQI
27AQI
29AQI
24AQI
18AQI
18AQI
19AQI
18AQI
21AQI
28AQI
41AQI
46AQI
39AQI
26AQI
23AQI
27AQI
19AQI
15AQI
17AQI
20AQI
23AQI
30AQI
32AQI
28AQI
27AQI
21AQI
19AQI
22AQI
24AQI
23AQI
21AQI
27AQI
44AQI
58AQI
56AQI
62AQI
57AQI
57AQI
56AQI
54AQI
54AQI
56AQI
55AQI
55AQI
50AQI
64AQI
52AQI
55AQI
56AQI
44AQI
42AQI
41AQI
41AQI
48AQI
42AQI
20AQI
17AQI
21AQI
21AQI
27AQI
32AQI
31AQI
20AQI
40AQI
34AQI
31AQI
37AQI
23AQI
29AQI
34AQI
17AQI
19AQI
23AQI
29AQI
24AQI
29AQI
48AQI
29AQI
31AQI
35AQI
39AQI
33AQI
48AQI
36AQI
28AQI
25AQI
18AQI
23AQI
27AQI
34AQI
38AQI
31AQI
No. of days
202531AQI
Highest AQI recorded in
January48AQI
Lowest AQI recorded in
May18AQI
202438AQI
Highest AQI recorded in
July81AQI
Lowest AQI recorded in
June12AQI
202336AQI
Highest AQI recorded in
November57AQI
Lowest AQI recorded in
June21AQI
202238AQI
Highest AQI recorded in
January61AQI
Lowest AQI recorded in
June15AQI
202140AQI
Highest AQI recorded in
August58AQI
Lowest AQI recorded in
May15AQI
202037AQI
Highest AQI recorded in
September73AQI
Lowest AQI recorded in
June12AQI
Most & Least Polluted Years Over the Last 6 Years
John Day's annual 2025 AQI (31) shows an average percentage change of -18.8% (improved AQI) compared to previous years: 2020 (37), 2021 (40), 2022 (38), 2023 (36), 2024 (38).