Aberdeen, South Dakota, 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
Aberdeen, South Dakota, United States
AQI Trends: Highest and Lowest
Same Day Analysis (18th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 40 of Good air quality, showing improvement over 2024, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Aberdeen, South Dakota, United States
7 AM18th Oct 2025
7 PM
6 AM19th Oct 2025
57AQI
35AQI
65AQI
55AQI
In the last 24 hours,
Aberdeen's AQI reached its highest point of 65 at 9 PM during the Night, while the lowest point, 35, was recorded at 10 AM during the Day between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Aberdeen, South Dakota, United States
18°C16/21°C
19°C16/25°C
16°C8/24°C
18°C9/26°C
19°C11/28°C
19°C12/27°C
18°C10/29°C
19°C9/30°C
17°C7/26°C
19°C10/29°C
22°C15/31°C
21°C14/28°C
23°C18/29°C
21°C12/30°C
23°C15/31°C
24°C19/30°C
15°C9/17°C
10°C4/18°C
11°C5/17°C
12°C1/23°C
17°C13/25°C
13°C5/21°C
14°C7/22°C
16°C7/22°C
7°C0/14°C
9°C6/13°C
10°C8/12°C
16°C11/23°C
13°C8/21°C
10°C6/16°C
--°C/°C
36AQI
30AQI
41AQI
32AQI
2025 Days Vs Air Quality
Aberdeen, South Dakota, United States
87%
252
12%
35
1%
4
Total number of days with different AQI categories in last 292 days in 2025 (73 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 292 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
Aberdeen, South Dakota, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
29AQI
25AQI
25AQI
22AQI
24AQI
27AQI
31AQI
26AQI
24AQI
23AQI
25AQI
28AQI
25AQI
22AQI
22AQI
41AQI
42AQI
39AQI
39AQI
43AQI
35AQI
25AQI
23AQI
24AQI
24AQI
23AQI
23AQI
23AQI
26AQI
29AQI
27AQI
26AQI
25AQI
23AQI
31AQI
29AQI
23AQI
31AQI
36AQI
33AQI
33AQI
32AQI
37AQI
36AQI
31AQI
27AQI
24AQI
22AQI
23AQI
26AQI
31AQI
32AQI
25AQI
24AQI
22AQI
23AQI
22AQI
24AQI
24AQI
27AQI
31AQI
27AQI
24AQI
23AQI
25AQI
26AQI
28AQI
29AQI
26AQI
26AQI
29AQI
48AQI
22AQI
18AQI
18AQI
20AQI
26AQI
32AQI
26AQI
22AQI
21AQI
20AQI
25AQI
23AQI
20AQI
43AQI
17AQI
15AQI
21AQI
20AQI
20AQI
18AQI
24AQI
17AQI
22AQI
17AQI
20AQI
25AQI
18AQI
24AQI
45AQI
40AQI
17AQI
15AQI
34AQI
35AQI
18AQI
20AQI
24AQI
28AQI
12AQI
14AQI
20AQI
20AQI
23AQI
23AQI
19AQI
13AQI
24AQI
17AQI
19AQI
25AQI
33AQI
38AQI
35AQI
26AQI
45AQI
52AQI
43AQI
60AQI
51AQI
49AQI
48AQI
34AQI
17AQI
14AQI
18AQI
15AQI
12AQI
13AQI
14AQI
18AQI
20AQI
25AQI
35AQI
27AQI
22AQI
23AQI
28AQI
70AQI
85AQI
67AQI
63AQI
59AQI
48AQI
32AQI
33AQI
65AQI
50AQI
71AQI
78AQI
72AQI
37AQI
23AQI
19AQI
22AQI
22AQI
23AQI
24AQI
24AQI
25AQI
26AQI
22AQI
49AQI
37AQI
18AQI
15AQI
14AQI
16AQI
19AQI
20AQI
21AQI
26AQI
31AQI
24AQI
38AQI
32AQI
28AQI
29AQI
20AQI
31AQI
63AQI
90AQI
52AQI
48AQI
43AQI
24AQI
20AQI
20AQI
25AQI
28AQI
26AQI
24AQI
40AQI
53AQI
33AQI
27AQI
22AQI
28AQI
77AQI
114AQI
119AQI
117AQI
70AQI
64AQI
52AQI
24AQI
30AQI
36AQI
20AQI
52AQI
102AQI
42AQI
39AQI
28AQI
27AQI
21AQI
15AQI
17AQI
22AQI
25AQI
30AQI
26AQI
23AQI
23AQI
22AQI
27AQI
29AQI
33AQI
34AQI
30AQI
35AQI
35AQI
30AQI
70AQI
46AQI
24AQI
27AQI
37AQI
41AQI
46AQI
44AQI
47AQI
53AQI
49AQI
42AQI
34AQI
30AQI
37AQI
20AQI
16AQI
15AQI
20AQI
23AQI
34AQI
38AQI
43AQI
48AQI
39AQI
52AQI
59AQI
59AQI
64AQI
55AQI
75AQI
67AQI
54AQI
46AQI
47AQI
68AQI
63AQI
55AQI
67AQI
48AQI
40AQI
39AQI
22AQI
47AQI
35AQI
40AQI
28AQI
28AQI
25AQI
22AQI
31AQI
39AQI
37AQI
40AQI
39AQI
52AQI
No. of days
202533AQI
Highest AQI recorded in
October52AQI
Lowest AQI recorded in
April22AQI
202428AQI
Highest AQI recorded in
October45AQI
Lowest AQI recorded in
June16AQI
202330AQI
Highest AQI recorded in
September44AQI
Lowest AQI recorded in
April19AQI
202225AQI
Highest AQI recorded in
October41AQI
Lowest AQI recorded in
April16AQI
202130AQI
Highest AQI recorded in
July62AQI
Lowest AQI recorded in
February18AQI
202029AQI
Highest AQI recorded in
November30AQI
Lowest AQI recorded in
October19AQI
Most & Least Polluted Years Over the Last 6 Years
Aberdeen's annual 2025 AQI (33) shows an average percentage change of 18.3% (worsened AQI) compared to previous years: 2020 (29), 2021 (30), 2022 (25), 2023 (30), 2024 (28).