Sioux Falls, 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!
August Air Quality Analysis
Sioux Falls, South Dakota, United States
AQI Trends: Highest and Lowest
Same Day Analysis (10th August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 27 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Sioux Falls, South Dakota, United States
6 AM10th Aug 2025
8 PM
5 AM11th Aug 2025
46AQI
20AQI
75AQI
52AQI
In the last 24 hours,
Sioux Falls's AQI reached its highest point of 75 at 3 AM during the Night, while the lowest point, 20, was recorded at 9 AM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Sioux Falls, South Dakota, United States
22°C16/28°C
23°C13/33°C
27°C19/36°C
28°C21/36°C
19°C13/22°C
18°C11/25°C
21°C14/28°C
23°C19/28°C
22°C14/28°C
26°C21/32°C
28°C22/35°C
27°C22/38°C
24°C19/29°C
24°C16/32°C
26°C20/34°C
29°C20/38°C
28°C20/36°C
23°C19/29°C
22°C18/25°C
21°C16/29°C
19°C12/25°C
17°C10/26°C
18°C16/22°C
20°C16/25°C
22°C17/29°C
24°C20/33°C
26°C21/33°C
27°C23/33°C
25°C21/28°C
22°C16/30°C
--°C/°C
49AQI
49AQI
49AQI
47AQI
2025 Days Vs Air Quality
Sioux Falls, South Dakota, United States
88%
196
10%
23
1%
3
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 223 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
Sioux Falls, South Dakota, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI
34AQI
26AQI
22AQI
21AQI
21AQI
24AQI
29AQI
40AQI
26AQI
31AQI
28AQI
22AQI
26AQI
28AQI
24AQI
26AQI
24AQI
26AQI
27AQI
24AQI
26AQI
28AQI
29AQI
24AQI
24AQI
25AQI
24AQI
24AQI
29AQI
34AQI
29AQI
32AQI
30AQI
24AQI
29AQI
29AQI
24AQI
29AQI
27AQI
33AQI
29AQI
32AQI
34AQI
45AQI
46AQI
29AQI
26AQI
24AQI
23AQI
25AQI
35AQI
43AQI
54AQI
31AQI
26AQI
28AQI
27AQI
26AQI
27AQI
29AQI
47AQI
39AQI
28AQI
26AQI
28AQI
28AQI
26AQI
28AQI
29AQI
27AQI
44AQI
56AQI
28AQI
19AQI
25AQI
31AQI
26AQI
24AQI
22AQI
23AQI
23AQI
23AQI
27AQI
22AQI
38AQI
45AQI
27AQI
17AQI
21AQI
25AQI
29AQI
21AQI
25AQI
20AQI
19AQI
17AQI
28AQI
37AQI
23AQI
27AQI
59AQI
57AQI
23AQI
16AQI
40AQI
57AQI
29AQI
18AQI
38AQI
28AQI
24AQI
22AQI
22AQI
16AQI
21AQI
21AQI
33AQI
14AQI
28AQI
24AQI
18AQI
22AQI
37AQI
33AQI
33AQI
30AQI
30AQI
41AQI
37AQI
40AQI
39AQI
40AQI
40AQI
38AQI
26AQI
17AQI
18AQI
20AQI
16AQI
15AQI
15AQI
24AQI
25AQI
24AQI
29AQI
27AQI
25AQI
23AQI
21AQI
42AQI
83AQI
61AQI
69AQI
59AQI
57AQI
57AQI
51AQI
62AQI
54AQI
63AQI
65AQI
67AQI
59AQI
46AQI
35AQI
27AQI
23AQI
24AQI
28AQI
35AQI
50AQI
50AQI
39AQI
28AQI
28AQI
20AQI
17AQI
22AQI
24AQI
22AQI
29AQI
30AQI
37AQI
46AQI
32AQI
37AQI
41AQI
29AQI
32AQI
28AQI
33AQI
49AQI
69AQI
54AQI
48AQI
33AQI
26AQI
25AQI
27AQI
27AQI
37AQI
37AQI
40AQI
36AQI
34AQI
28AQI
29AQI
30AQI
27AQI
43AQI
115AQI
124AQI
102AQI
85AQI
62AQI
55AQI
31AQI
38AQI
50AQI
30AQI
27AQI
27AQI
31AQI
29AQI
28AQI
28AQI
44AQI
38AQI
60AQI
No. of days
202533AQI
Highest AQI recorded in
August60AQI
Lowest AQI recorded in
January27AQI
202432AQI
Highest AQI recorded in
October46AQI
Lowest AQI recorded in
February4AQI
202326AQI
Highest AQI recorded in
December26AQI
Lowest AQI recorded in
November21AQI
202131AQI
Highest AQI recorded in
January34AQI
Lowest AQI recorded in
March25AQI
202035AQI
Highest AQI recorded in
June43AQI
Lowest AQI recorded in
March26AQI
Most & Least Polluted Years Over the Last 5 Years
Sioux Falls's annual 2025 AQI (33) shows an average percentage change of 9.3% (worsened AQI) compared to previous years: 2020 (35), 2021 (31), 2023 (26), 2024 (32).