Ashland, Kentucky, 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
Ashland, Kentucky, United States
AQI Trends: Highest and Lowest
Same Day Analysis (25th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 24 of Good air quality, showing improvement over 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 25th Sep - 26th Sep 2025
Ashland, Kentucky, United States
7 AM25th Sep 2025
7 PM
6 AM26th Sep 2025
35AQI
26AQI
35AQI
28AQI
In the last 24 hours,
Ashland's AQI reached its highest point of 35 at 3 PM during the Day, while the lowest point, 26, was recorded at 10 AM during the Day between 25th Sep and 26th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Ashland, Kentucky, United States
18°C7/27°C
19°C9/28°C
20°C11/29°C
19°C12/26°C
20°C10/28°C
20°C11/29°C
20°C9/30°C
21°C13/29°C
21°C17/26°C
23°C16/33°C
17°C14/20°C
15°C10/23°C
16°C7/26°C
18°C7/28°C
17°C5/28°C
20°C7/30°C
20°C8/30°C
21°C8/31°C
23°C13/31°C
23°C13/32°C
23°C15/30°C
22°C12/31°C
23°C13/32°C
22°C10/32°C
23°C15/32°C
25°C18/34°C
24°C18/31°C
22°C19/27°C
22°C21/26°C
22°C20/25°C
--°C/°C
38AQI
38AQI
39AQI
39AQI
2025 Days Vs Air Quality
Ashland, Kentucky, United States
88%
236
12%
32
Total number of days with different AQI categories in last 269 days in 2025 (96 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 269 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Ashland, Kentucky, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
18AQI
23AQI
23AQI
22AQI
25AQI
21AQI
24AQI
31AQI
50AQI
57AQI
53AQI
49AQI
31AQI
25AQI
38AQI
37AQI
38AQI
29AQI
26AQI
24AQI
30AQI
37AQI
38AQI
41AQI
39AQI
30AQI
31AQI
23AQI
24AQI
28AQI
25AQI
22AQI
33AQI
33AQI
32AQI
28AQI
26AQI
23AQI
24AQI
26AQI
29AQI
25AQI
35AQI
28AQI
30AQI
26AQI
21AQI
26AQI
25AQI
27AQI
28AQI
28AQI
40AQI
34AQI
30AQI
31AQI
32AQI
31AQI
27AQI
28AQI
27AQI
30AQI
34AQI
29AQI
25AQI
27AQI
32AQI
34AQI
31AQI
40AQI
52AQI
56AQI
50AQI
44AQI
30AQI
20AQI
22AQI
33AQI
25AQI
18AQI
20AQI
29AQI
21AQI
19AQI
24AQI
27AQI
37AQI
57AQI
42AQI
18AQI
28AQI
27AQI
19AQI
21AQI
19AQI
14AQI
18AQI
17AQI
22AQI
26AQI
32AQI
31AQI
30AQI
43AQI
23AQI
23AQI
26AQI
44AQI
56AQI
38AQI
43AQI
21AQI
24AQI
31AQI
32AQI
30AQI
17AQI
22AQI
38AQI
29AQI
35AQI
26AQI
19AQI
17AQI
16AQI
17AQI
25AQI
31AQI
25AQI
29AQI
30AQI
24AQI
17AQI
25AQI
34AQI
41AQI
26AQI
19AQI
25AQI
26AQI
19AQI
13AQI
15AQI
17AQI
23AQI
20AQI
17AQI
16AQI
30AQI
25AQI
39AQI
34AQI
29AQI
46AQI
72AQI
61AQI
47AQI
32AQI
29AQI
43AQI
42AQI
60AQI
63AQI
58AQI
31AQI
24AQI
24AQI
24AQI
21AQI
22AQI
29AQI
39AQI
42AQI
53AQI
53AQI
53AQI
50AQI
39AQI
35AQI
30AQI
35AQI
29AQI
26AQI
41AQI
53AQI
78AQI
59AQI
53AQI
39AQI
42AQI
32AQI
38AQI
38AQI
35AQI
33AQI
32AQI
28AQI
28AQI
24AQI
28AQI
26AQI
31AQI
59AQI
60AQI
50AQI
49AQI
41AQI
24AQI
24AQI
33AQI
37AQI
49AQI
58AQI
47AQI
40AQI
42AQI
42AQI
41AQI
32AQI
43AQI
54AQI
54AQI
50AQI
36AQI
26AQI
37AQI
54AQI
54AQI
51AQI
41AQI
47AQI
42AQI
27AQI
33AQI
41AQI
41AQI
24AQI
24AQI
28AQI
33AQI
33AQI
27AQI
29AQI
31AQI
32AQI
31AQI
29AQI
49AQI
48AQI
34AQI
31AQI
32AQI
41AQI
40AQI
42AQI
46AQI
53AQI
51AQI
53AQI
51AQI
50AQI
54AQI
52AQI
47AQI
40AQI
31AQI
37AQI
24AQI
32AQI
29AQI
32AQI
28AQI
24AQI
41AQI
39AQI
40AQI
41AQI
No. of days
202534AQI
Highest AQI recorded in
September41AQI
Lowest AQI recorded in
May24AQI
202431AQI
Highest AQI recorded in
July38AQI
Lowest AQI recorded in
January24AQI
202338AQI
Highest AQI recorded in
June67AQI
Lowest AQI recorded in
October27AQI
202235AQI
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
December31AQI
202137AQI
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
October30AQI
202035AQI
Highest AQI recorded in
April38AQI
Lowest AQI recorded in
May28AQI
Most & Least Polluted Years Over the Last 6 Years
Ashland's annual 2025 AQI (34) shows an average percentage change of -4.008% (improved AQI) compared to previous years: 2020 (35), 2021 (37), 2022 (35), 2023 (38), 2024 (31).