Ashland, Wisconsin, 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
Ashland, Wisconsin, United States
AQI Trends: Highest and Lowest
Same Day Analysis (23rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 24 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 24th Aug - 25th Aug 2025
Ashland, Wisconsin, United States
5 AM24th Aug 2025
8 PM
4 AM25th Aug 2025
38AQI
33AQI
37AQI
29AQI
In the last 24 hours,
Ashland's AQI reached its highest point of 38 at 7 AM during the Day, while the lowest point, undefined, was recorded at 4 AM during the Night between 24th Aug and 25th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Ashland, Wisconsin, United States
26°C20/31°C
28°C23/33°C
25°C21/30°C
20°C17/23°C
17°C12/22°C
16°C9/22°C
19°C11/26°C
21°C15/27°C
21°C14/27°C
20°C14/25°C
21°C17/27°C
22°C20/25°C
25°C21/30°C
26°C21/31°C
25°C22/26°C
23°C17/29°C
24°C19/28°C
22°C19/25°C
19°C15/23°C
21°C12/28°C
24°C21/28°C
19°C14/21°C
17°C14/21°C
18°C14/19°C
21°C18/26°C
19°C16/22°C
19°C12/25°C
21°C20/23°C
18°C14/21°C
14°C13/15°C
--°C/°C
41AQI
41AQI
40AQI
40AQI
2025 Days Vs Air Quality
Ashland, Wisconsin, United States
84%
198
14%
33
1%
3
0.4%
1
Total number of days with different AQI categories in last 237 days in 2025 (128 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 237 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, Wisconsin, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI
22AQI
22AQI
24AQI
25AQI
27AQI
23AQI
23AQI
36AQI
40AQI
24AQI
25AQI
26AQI
24AQI
29AQI
31AQI
26AQI
28AQI
28AQI
26AQI
27AQI
26AQI
27AQI
28AQI
30AQI
29AQI
29AQI
28AQI
29AQI
30AQI
27AQI
29AQI
32AQI
27AQI
25AQI
26AQI
28AQI
29AQI
28AQI
29AQI
31AQI
26AQI
27AQI
26AQI
40AQI
37AQI
26AQI
24AQI
23AQI
23AQI
26AQI
27AQI
37AQI
55AQI
29AQI
28AQI
27AQI
27AQI
28AQI
29AQI
27AQI
32AQI
38AQI
30AQI
28AQI
29AQI
27AQI
29AQI
25AQI
30AQI
27AQI
23AQI
33AQI
54AQI
16AQI
20AQI
17AQI
19AQI
19AQI
21AQI
29AQI
24AQI
18AQI
20AQI
21AQI
22AQI
17AQI
17AQI
16AQI
17AQI
18AQI
18AQI
16AQI
18AQI
19AQI
24AQI
16AQI
18AQI
29AQI
42AQI
36AQI
34AQI
50AQI
28AQI
15AQI
17AQI
29AQI
27AQI
18AQI
16AQI
15AQI
17AQI
20AQI
15AQI
16AQI
18AQI
21AQI
31AQI
17AQI
16AQI
19AQI
16AQI
13AQI
18AQI
21AQI
29AQI
16AQI
17AQI
25AQI
19AQI
22AQI
22AQI
26AQI
37AQI
31AQI
30AQI
17AQI
16AQI
14AQI
14AQI
16AQI
18AQI
14AQI
15AQI
17AQI
19AQI
21AQI
23AQI
30AQI
33AQI
38AQI
43AQI
51AQI
59AQI
65AQI
60AQI
58AQI
63AQI
63AQI
54AQI
59AQI
71AQI
51AQI
27AQI
24AQI
27AQI
35AQI
32AQI
35AQI
40AQI
31AQI
30AQI
30AQI
37AQI
38AQI
39AQI
33AQI
23AQI
25AQI
23AQI
23AQI
34AQI
35AQI
42AQI
48AQI
36AQI
40AQI
32AQI
34AQI
34AQI
36AQI
35AQI
51AQI
82AQI
85AQI
76AQI
43AQI
32AQI
41AQI
29AQI
45AQI
54AQI
53AQI
48AQI
36AQI
41AQI
58AQI
38AQI
39AQI
58AQI
71AQI
136AQI
157AQI
143AQI
101AQI
88AQI
80AQI
66AQI
62AQI
53AQI
52AQI
35AQI
56AQI
60AQI
67AQI
67AQI
56AQI
37AQI
18AQI
18AQI
20AQI
18AQI
22AQI
30AQI
24AQI
27AQI
29AQI
25AQI
22AQI
21AQI
42AQI
49AQI
58AQI
No. of days
202534AQI
Highest AQI recorded in
August58AQI
Lowest AQI recorded in
May21AQI
202428AQI
Highest AQI recorded in
July35AQI
Lowest AQI recorded in
November21AQI
202336AQI
Highest AQI recorded in
June62AQI
Lowest AQI recorded in
November18AQI
202229AQI
Highest AQI recorded in
March32AQI
Lowest AQI recorded in
August24AQI
202132AQI
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
October23AQI
202027AQI
Highest AQI recorded in
November30AQI
Lowest AQI recorded in
September23AQI
Most & Least Polluted Years Over the Last 6 Years
Ashland's annual 2025 AQI (34) shows an average percentage change of 10.8% (worsened AQI) compared to previous years: 2020 (27), 2021 (32), 2022 (29), 2023 (36), 2024 (28).