Emerson East, Madison, Wisconsin, 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
Emerson East, Madison, Wisconsin, United States
AQI Trends: Highest and Lowest
Same Day Analysis (18th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 51 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Oct - 18th Oct 2025
Emerson East, Madison, Wisconsin, United States
6 AM17th Oct 2025
6 PM
5 AM18th Oct 2025
59AQI
38AQI
57AQI
39AQI
In the last 24 hours,
Emerson East's AQI reached its highest point of 59 at 4 PM during the Day, while the lowest point, 38, was recorded at 10 AM during the Day between 17th Oct and 18th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Emerson East, Madison, Wisconsin, United States
23°C16/32°C
20°C17/26°C
20°C19/23°C
21°C17/25°C
20°C15/26°C
20°C17/24°C
17°C15/19°C
18°C12/26°C
20°C15/29°C
22°C15/31°C
20°C12/28°C
22°C13/31°C
21°C15/30°C
20°C14/26°C
21°C13/30°C
23°C16/32°C
24°C18/32°C
23°C18/29°C
18°C14/19°C
16°C12/22°C
12°C7/18°C
12°C4/20°C
16°C10/23°C
13°C6/20°C
15°C10/23°C
18°C14/24°C
14°C10/19°C
12°C11/14°C
15°C12/20°C
20°C14/27°C
--°C/°C
36AQI
28AQI
44AQI
29AQI
2025 Days Vs Air Quality
Emerson East, Madison, Wisconsin, United States
75%
154
22%
46
2%
5
0.4%
1
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 75%
Health Risk Level:
Low
In 2025, 75% of 291 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
Emerson East, Madison, Wisconsin, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI
50AQI
22AQI
17AQI
17AQI
20AQI
29AQI
21AQI
25AQI
25AQI
26AQI
29AQI
19AQI
40AQI
52AQI
52AQI
57AQI
46AQI
32AQI
15AQI
21AQI
36AQI
47AQI
25AQI
31AQI
16AQI
30AQI
40AQI
32AQI
20AQI
19AQI
31AQI
39AQI
29AQI
21AQI
24AQI
24AQI
17AQI
26AQI
23AQI
33AQI
37AQI
18AQI
32AQI
38AQI
24AQI
37AQI
38AQI
35AQI
46AQI
36AQI
18AQI
21AQI
17AQI
18AQI
16AQI
18AQI
17AQI
26AQI
23AQI
25AQI
28AQI
29AQI
33AQI
40AQI
40AQI
44AQI
48AQI
54AQI
106AQI
88AQI
78AQI
77AQI
78AQI
73AQI
65AQI
75AQI
97AQI
54AQI
53AQI
54AQI
53AQI
38AQI
28AQI
31AQI
36AQI
41AQI
45AQI
55AQI
29AQI
32AQI
33AQI
21AQI
23AQI
28AQI
25AQI
30AQI
46AQI
43AQI
41AQI
59AQI
34AQI
58AQI
62AQI
41AQI
42AQI
33AQI
34AQI
75AQI
72AQI
61AQI
44AQI
19AQI
20AQI
23AQI
27AQI
90AQI
63AQI
59AQI
36AQI
30AQI
82AQI
33AQI
27AQI
36AQI
56AQI
153AQI
113AQI
105AQI
113AQI
121AQI
79AQI
88AQI
62AQI
52AQI
51AQI
34AQI
32AQI
36AQI
59AQI
57AQI
63AQI
46AQI
29AQI
23AQI
26AQI
20AQI
20AQI
26AQI
26AQI
17AQI
17AQI
22AQI
30AQI
30AQI
22AQI
23AQI
30AQI
32AQI
36AQI
45AQI
43AQI
31AQI
18AQI
21AQI
29AQI
25AQI
37AQI
43AQI
44AQI
53AQI
56AQI
52AQI
52AQI
52AQI
54AQI
49AQI
41AQI
29AQI
31AQI
25AQI
22AQI
32AQI
28AQI
30AQI
29AQI
28AQI
41AQI
35AQI
41AQI
56AQI
57AQI
54AQI
45AQI
24AQI
25AQI
29AQI
31AQI
25AQI
42AQI
37AQI
24AQI
16AQI
24AQI
46AQI
51AQI
28AQI
31AQI
28AQI
52AQI
49AQI
47AQI
37AQI
37AQI
No. of days
202540AQI
Highest AQI recorded in
June52AQI
Lowest AQI recorded in
March28AQI
Most & Least Polluted Years Over the Last 1 Years
Emerson East's annual 2025 AQI (40) shows an average percentage change of NaN% (improved AQI) compared to previous years: .