Interior, 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
Interior, South Dakota, 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 63 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Interior, South Dakota, United States
6 AM18th Oct 2025
6 PM
5 AM19th Oct 2025
176AQI
48AQI
56AQI
11AQI
In the last 24 hours,
Interior's AQI reached its highest point of 176 at 10 AM during the Day, while the lowest point, 11, was recorded at 4 AM during the Night between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Interior, South Dakota, United States
16°C10/21°C
17°C10/25°C
18°C10/26°C
18°C13/24°C
18°C12/26°C
18°C10/27°C
19°C9/30°C
20°C9/33°C
17°C7/28°C
22°C12/34°C
24°C15/33°C
24°C15/32°C
24°C17/31°C
21°C11/32°C
25°C15/36°C
20°C15/26°C
12°C8/13°C
9°C6/14°C
10°C4/18°C
15°C6/26°C
18°C12/28°C
14°C5/23°C
18°C12/27°C
14°C8/19°C
7°C-1/14°C
10°C7/15°C
10°C10/12°C
12°C10/16°C
12°C6/21°C
10°C6/14°C
--°C/°C
46AQI
39AQI
45AQI
40AQI
2025 Days Vs Air Quality
Interior, South Dakota, United States
87%
179
13%
27
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
Interior, South Dakota, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI
46AQI
33AQI
29AQI
28AQI
44AQI
31AQI
30AQI
33AQI
25AQI
23AQI
27AQI
35AQI
25AQI
25AQI
30AQI
44AQI
34AQI
24AQI
20AQI
28AQI
28AQI
22AQI
19AQI
22AQI
21AQI
20AQI
24AQI
25AQI
27AQI
27AQI
28AQI
25AQI
22AQI
21AQI
22AQI
23AQI
27AQI
30AQI
31AQI
38AQI
34AQI
36AQI
32AQI
31AQI
34AQI
32AQI
42AQI
38AQI
39AQI
26AQI
25AQI
26AQI
22AQI
18AQI
18AQI
20AQI
25AQI
37AQI
35AQI
27AQI
23AQI
23AQI
24AQI
25AQI
60AQI
79AQI
52AQI
45AQI
45AQI
39AQI
33AQI
34AQI
66AQI
53AQI
57AQI
71AQI
71AQI
55AQI
38AQI
43AQI
40AQI
35AQI
29AQI
34AQI
36AQI
47AQI
49AQI
30AQI
35AQI
34AQI
29AQI
29AQI
31AQI
29AQI
27AQI
30AQI
34AQI
37AQI
38AQI
40AQI
35AQI
29AQI
29AQI
35AQI
34AQI
47AQI
43AQI
45AQI
39AQI
41AQI
43AQI
53AQI
43AQI
42AQI
38AQI
34AQI
42AQI
40AQI
31AQI
29AQI
36AQI
35AQI
39AQI
31AQI
46AQI
74AQI
62AQI
78AQI
59AQI
42AQI
40AQI
45AQI
48AQI
42AQI
24AQI
52AQI
53AQI
32AQI
36AQI
34AQI
38AQI
41AQI
36AQI
32AQI
35AQI
34AQI
38AQI
36AQI
36AQI
40AQI
34AQI
38AQI
32AQI
40AQI
39AQI
35AQI
31AQI
37AQI
45AQI
62AQI
74AQI
50AQI
38AQI
41AQI
51AQI
50AQI
53AQI
47AQI
43AQI
35AQI
28AQI
31AQI
25AQI
31AQI
35AQI
26AQI
24AQI
27AQI
31AQI
40AQI
45AQI
38AQI
37AQI
55AQI
39AQI
25AQI
27AQI
41AQI
35AQI
43AQI
52AQI
40AQI
53AQI
51AQI
40AQI
46AQI
43AQI
46AQI
45AQI
41AQI
48AQI
41AQI
66AQI
51AQI
63AQI
34AQI
27AQI
30AQI
43AQI
39AQI
41AQI
40AQI
47AQI
No. of days
202537AQI
Highest AQI recorded in
October47AQI
Lowest AQI recorded in
April27AQI
Most & Least Polluted Years Over the Last 1 Years
Interior's annual 2025 AQI (37) shows an average percentage change of NaN% (improved AQI) compared to previous years: .