Cass Lake, Minnesota, 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
Cass Lake, Minnesota, United States
AQI Trends: Highest and Lowest
Same Day Analysis (14th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 32 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Oct - 14th Oct 2025
Cass Lake, Minnesota, United States
7 AM13th Oct 2025
7 PM
6 AM14th Oct 2025
34AQI
23AQI
46AQI
25AQI
In the last 24 hours,
Cass Lake's AQI reached its highest point of 46 at 3 AM during the Night, while the lowest point, 23, was recorded at 7 AM during the Day between 13th Oct and 14th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Cass Lake, Minnesota, United States
--°C/°C
23°C19/29°C
23°C19/29°C
18°C13/23°C
16°C14/20°C
14°C13/16°C
16°C13/21°C
18°C16/22°C
16°C8/24°C
17°C9/25°C
17°C9/26°C
18°C13/25°C
14°C5/24°C
16°C9/23°C
18°C10/27°C
20°C11/30°C
20°C14/27°C
20°C14/28°C
22°C16/28°C
19°C8/29°C
24°C20/30°C
19°C10/25°C
9°C5/14°C
8°C4/12°C
7°C-2/17°C
14°C7/22°C
11°C6/17°C
10°C2/20°C
15°C11/19°C
7°C4/12°C
5°C-1/10°C
34AQI
33AQI
36AQI
36AQI
2025 Days Vs Air Quality
Cass Lake, Minnesota, United States
81%
163
15%
31
2%
5
1%
3
Total number of days with different AQI categories in last 288 days in 2025 (77 days remaining)
Under WHO’s Safe Air Quality Limits: 81%
Health Risk Level:
Low
In 2025, 81% of 288 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
Cass Lake, Minnesota, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
21AQI
18AQI
14AQI
14AQI
16AQI
16AQI
18AQI
16AQI
34AQI
17AQI
23AQI
14AQI
22AQI
25AQI
38AQI
36AQI
50AQI
49AQI
20AQI
15AQI
20AQI
22AQI
19AQI
16AQI
19AQI
18AQI
21AQI
19AQI
19AQI
15AQI
22AQI
21AQI
18AQI
12AQI
23AQI
21AQI
13AQI
16AQI
24AQI
19AQI
27AQI
17AQI
15AQI
36AQI
20AQI
28AQI
34AQI
32AQI
33AQI
30AQI
15AQI
15AQI
15AQI
13AQI
15AQI
16AQI
17AQI
15AQI
18AQI
30AQI
35AQI
34AQI
19AQI
28AQI
41AQI
51AQI
61AQI
76AQI
106AQI
64AQI
57AQI
49AQI
46AQI
52AQI
52AQI
65AQI
75AQI
62AQI
38AQI
28AQI
27AQI
31AQI
29AQI
44AQI
28AQI
25AQI
25AQI
27AQI
28AQI
48AQI
42AQI
25AQI
24AQI
20AQI
20AQI
21AQI
41AQI
27AQI
40AQI
46AQI
27AQI
55AQI
54AQI
34AQI
38AQI
30AQI
31AQI
158AQI
143AQI
141AQI
79AQI
43AQI
35AQI
31AQI
30AQI
68AQI
60AQI
64AQI
32AQI
49AQI
76AQI
60AQI
35AQI
35AQI
66AQI
130AQI
161AQI
162AQI
147AQI
99AQI
80AQI
78AQI
52AQI
34AQI
36AQI
30AQI
31AQI
92AQI
73AQI
64AQI
57AQI
44AQI
24AQI
16AQI
16AQI
21AQI
21AQI
24AQI
33AQI
19AQI
17AQI
18AQI
25AQI
30AQI
30AQI
29AQI
38AQI
43AQI
46AQI
35AQI
35AQI
22AQI
17AQI
19AQI
27AQI
33AQI
40AQI
44AQI
37AQI
41AQI
48AQI
50AQI
49AQI
49AQI
44AQI
26AQI
20AQI
21AQI
19AQI
28AQI
32AQI
33AQI
32AQI
24AQI
24AQI
21AQI
30AQI
38AQI
41AQI
56AQI
56AQI
62AQI
54AQI
21AQI
28AQI
40AQI
30AQI
37AQI
35AQI
39AQI
28AQI
32AQI
17AQI
23AQI
24AQI
43AQI
62AQI
48AQI
33AQI
40AQI
No. of days
202538AQI
Highest AQI recorded in
July62AQI
Lowest AQI recorded in
March17AQI
Most & Least Polluted Years Over the Last 1 Years
Cass Lake's annual 2025 AQI (38) shows an average percentage change of NaN% (improved AQI) compared to previous years: .