Dennison, Minnesota, 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
Dennison, Minnesota, United States
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 29 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Aug - 21st Aug 2025
Dennison, Minnesota, United States
6 AM20th Aug 2025
8 PM
5 AM21st Aug 2025
32AQI
24AQI
26AQI
22AQI
In the last 24 hours,
Dennison's AQI reached its highest point of 32 at 6 AM during the Day, while the lowest point, 22, was recorded at 5 AM during the Night between 20th Aug and 21st Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Dennison, Minnesota, United States
27°C22/33°C
28°C22/36°C
24°C20/28°C
24°C18/30°C
25°C18/31°C
26°C19/33°C
25°C16/32°C
22°C18/27°C
22°C19/25°C
20°C13/26°C
18°C11/24°C
19°C12/26°C
18°C11/25°C
21°C14/25°C
21°C12/28°C
21°C17/26°C
23°C17/29°C
27°C21/32°C
26°C24/28°C
22°C15/29°C
22°C15/29°C
22°C16/29°C
20°C12/28°C
20°C15/27°C
25°C19/33°C
24°C19/30°C
22°C21/23°C
23°C21/28°C
24°C18/31°C
23°C18/27°C
--°C/°C
65AQI
63AQI
63AQI
61AQI
2025 Days Vs Air Quality
Dennison, Minnesota, United States
72%
106
22%
33
3%
5
2%
3
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 72%
Health Risk Level:
Low
In 2025, 72% of 233 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
Dennison, Minnesota, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
20AQI
52AQI
18AQI
14AQI
17AQI
21AQI
24AQI
17AQI
27AQI
21AQI
26AQI
15AQI
24AQI
49AQI
51AQI
53AQI
62AQI
51AQI
23AQI
16AQI
15AQI
40AQI
35AQI
18AQI
27AQI
15AQI
26AQI
26AQI
16AQI
16AQI
21AQI
25AQI
32AQI
15AQI
28AQI
32AQI
18AQI
16AQI
38AQI
22AQI
29AQI
22AQI
18AQI
34AQI
33AQI
32AQI
34AQI
37AQI
34AQI
39AQI
26AQI
17AQI
14AQI
13AQI
14AQI
15AQI
15AQI
16AQI
29AQI
37AQI
44AQI
28AQI
22AQI
27AQI
36AQI
45AQI
54AQI
55AQI
123AQI
95AQI
65AQI
57AQI
64AQI
66AQI
50AQI
77AQI
83AQI
107AQI
63AQI
38AQI
40AQI
46AQI
34AQI
42AQI
39AQI
34AQI
46AQI
46AQI
50AQI
39AQI
42AQI
25AQI
21AQI
30AQI
28AQI
28AQI
38AQI
40AQI
41AQI
47AQI
45AQI
53AQI
57AQI
44AQI
36AQI
36AQI
35AQI
147AQI
155AQI
97AQI
69AQI
35AQI
19AQI
22AQI
30AQI
30AQI
63AQI
59AQI
42AQI
32AQI
105AQI
61AQI
33AQI
29AQI
40AQI
96AQI
155AQI
160AQI
134AQI
94AQI
87AQI
71AQI
62AQI
57AQI
50AQI
44AQI
31AQI
70AQI
76AQI
62AQI
63AQI
52AQI
29AQI
27AQI
20AQI
32AQI
29AQI
24AQI
28AQI
27AQI
53AQI
58AQI
63AQI
No. of days
202544AQI
Highest AQI recorded in
August63AQI
Lowest AQI recorded in
March24AQI
Most & Least Polluted Years Over the Last 1 Years
Dennison's annual 2025 AQI (44) shows an average percentage change of NaN% (improved AQI) compared to previous years: .