Uc1, Vermillion, 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
Uc1, Vermillion, South Dakota, United States
AQI Trends: Highest and Lowest
Same Day Analysis (13th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 35 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 12th Aug - 13th Aug 2025
Uc1, Vermillion, South Dakota, United States
6 AM12th Aug 2025
8 PM
5 AM13th Aug 2025
60AQI
30AQI
37AQI
32AQI
In the last 24 hours,
Uc1's AQI reached its highest point of 60 at 7 AM during the Day, while the lowest point, 30, was recorded at 6 PM during the Day between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Uc1, Vermillion, South Dakota, United States
27°C19/35°C
28°C21/35°C
20°C16/24°C
19°C13/26°C
23°C15/29°C
24°C21/29°C
23°C18/28°C
28°C22/34°C
28°C20/34°C
29°C23/37°C
24°C19/29°C
25°C20/30°C
26°C19/33°C
28°C20/37°C
29°C21/37°C
26°C20/32°C
23°C20/27°C
21°C17/26°C
20°C15/25°C
18°C12/26°C
19°C16/24°C
21°C16/25°C
23°C18/29°C
25°C20/32°C
26°C22/32°C
28°C23/35°C
26°C22/29°C
22°C17/29°C
23°C17/29°C
22°C14/29°C
--°C/°C
44AQI
44AQI
44AQI
44AQI
2025 Days Vs Air Quality
Uc1, Vermillion, South Dakota, United States
87%
196
12%
27
0.8%
2
Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 225 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
Uc1, Vermillion, South Dakota, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
25AQI
25AQI
22AQI
20AQI
20AQI
25AQI
32AQI
44AQI
30AQI
33AQI
31AQI
23AQI
27AQI
31AQI
22AQI
27AQI
22AQI
23AQI
23AQI
23AQI
24AQI
25AQI
29AQI
23AQI
22AQI
24AQI
24AQI
22AQI
37AQI
41AQI
25AQI
33AQI
35AQI
23AQI
25AQI
31AQI
23AQI
35AQI
29AQI
34AQI
31AQI
36AQI
36AQI
47AQI
51AQI
28AQI
25AQI
25AQI
22AQI
26AQI
37AQI
48AQI
59AQI
30AQI
25AQI
26AQI
23AQI
25AQI
27AQI
28AQI
49AQI
39AQI
27AQI
24AQI
27AQI
29AQI
27AQI
29AQI
28AQI
27AQI
51AQI
58AQI
33AQI
19AQI
25AQI
30AQI
25AQI
22AQI
21AQI
21AQI
23AQI
22AQI
26AQI
23AQI
48AQI
41AQI
35AQI
18AQI
20AQI
23AQI
26AQI
21AQI
30AQI
25AQI
25AQI
24AQI
26AQI
39AQI
29AQI
37AQI
59AQI
56AQI
24AQI
19AQI
38AQI
55AQI
36AQI
23AQI
37AQI
30AQI
32AQI
37AQI
27AQI
20AQI
22AQI
28AQI
41AQI
20AQI
30AQI
26AQI
21AQI
22AQI
35AQI
30AQI
32AQI
36AQI
29AQI
38AQI
43AQI
37AQI
35AQI
40AQI
38AQI
40AQI
34AQI
16AQI
19AQI
21AQI
18AQI
17AQI
15AQI
21AQI
21AQI
25AQI
27AQI
24AQI
26AQI
26AQI
30AQI
37AQI
63AQI
52AQI
61AQI
68AQI
60AQI
57AQI
51AQI
66AQI
58AQI
63AQI
62AQI
59AQI
52AQI
45AQI
32AQI
26AQI
21AQI
18AQI
23AQI
27AQI
35AQI
37AQI
42AQI
24AQI
21AQI
18AQI
16AQI
16AQI
19AQI
19AQI
26AQI
24AQI
33AQI
45AQI
35AQI
34AQI
46AQI
24AQI
23AQI
22AQI
24AQI
45AQI
64AQI
57AQI
42AQI
31AQI
19AQI
19AQI
22AQI
23AQI
42AQI
36AQI
33AQI
25AQI
22AQI
22AQI
22AQI
25AQI
25AQI
33AQI
116AQI
125AQI
97AQI
87AQI
61AQI
53AQI
36AQI
41AQI
47AQI
31AQI
30AQI
57AQI
47AQI
35AQI
27AQI
32AQI
30AQI
31AQI
28AQI
40AQI
34AQI
57AQI
No. of days
202533AQI
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
January27AQI
202430AQI
Highest AQI recorded in
October39AQI
Lowest AQI recorded in
February4AQI
202320AQI
Highest AQI recorded in
December21AQI
Lowest AQI recorded in
November16AQI
202143AQI
Highest AQI recorded in
July53AQI
Lowest AQI recorded in
January36AQI
202034AQI
Highest AQI recorded in
July42AQI
Lowest AQI recorded in
August30AQI
Most & Least Polluted Years Over the Last 5 Years
Uc1's annual 2025 AQI (33) shows an average percentage change of 12.08% (worsened AQI) compared to previous years: 2020 (34), 2021 (43), 2023 (20), 2024 (30).