Cornwall, Connecticut, 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
Cornwall, Connecticut, United States
AQI Trends: Highest and Lowest
Same Day Analysis (5th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 111 of Poor air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Cornwall, Connecticut, United States
5 AM5th Aug 2025
8 PM
4 AM6th Aug 2025
84AQI
57AQI
63AQI
32AQI
In the last 24 hours,
Cornwall's AQI reached its highest point of 84 at 5 AM during the Day, while the lowest point, 32, was recorded at 4 AM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Cornwall, Connecticut, United States
24°C21/29°C
25°C22/30°C
25°C21/29°C
24°C21/28°C
23°C20/28°C
22°C19/26°C
22°C19/27°C
22°C19/24°C
25°C20/30°C
26°C19/33°C
26°C23/32°C
22°C19/27°C
22°C14/28°C
25°C20/32°C
22°C18/27°C
19°C14/24°C
21°C16/25°C
24°C18/31°C
26°C22/35°C
24°C18/29°C
21°C18/24°C
26°C21/33°C
28°C21/35°C
27°C20/35°C
22°C16/26°C
19°C15/23°C
19°C11/25°C
21°C12/30°C
23°C12/31°C
23°C16/31°C
--°C/°C
44AQI
44AQI
43AQI
42AQI
2025 Days Vs Air Quality
Cornwall, Connecticut, United States
85%
112
14%
19
0.7%
1
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 218 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
Cornwall, Connecticut, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
17AQI
22AQI
41AQI
19AQI
27AQI
17AQI
18AQI
18AQI
18AQI
14AQI
12AQI
16AQI
12AQI
15AQI
22AQI
19AQI
14AQI
15AQI
18AQI
26AQI
9AQI
13AQI
18AQI
49AQI
13AQI
15AQI
19AQI
21AQI
29AQI
45AQI
21AQI
10AQI
15AQI
22AQI
16AQI
16AQI
29AQI
29AQI
28AQI
16AQI
16AQI
27AQI
21AQI
16AQI
16AQI
20AQI
22AQI
34AQI
29AQI
25AQI
39AQI
34AQI
19AQI
13AQI
13AQI
17AQI
13AQI
12AQI
12AQI
13AQI
17AQI
19AQI
25AQI
16AQI
35AQI
16AQI
13AQI
16AQI
23AQI
44AQI
67AQI
59AQI
50AQI
76AQI
69AQI
24AQI
58AQI
69AQI
62AQI
61AQI
49AQI
39AQI
22AQI
17AQI
21AQI
29AQI
46AQI
47AQI
54AQI
53AQI
49AQI
43AQI
30AQI
26AQI
35AQI
31AQI
42AQI
30AQI
47AQI
47AQI
38AQI
58AQI
46AQI
30AQI
25AQI
30AQI
39AQI
39AQI
24AQI
23AQI
29AQI
40AQI
33AQI
17AQI
19AQI
26AQI
36AQI
19AQI
27AQI
33AQI
50AQI
82AQI
96AQI
56AQI
56AQI
44AQI
59AQI
56AQI
36AQI
70AQI
93AQI
111AQI
25AQI
19AQI
21AQI
43AQI
40AQI
73AQI
No. of days
202532AQI
Highest AQI recorded in
August73AQI
Lowest AQI recorded in
April19AQI
Most & Least Polluted Years Over the Last 1 Years
Cornwall's annual 2025 AQI (32) shows an average percentage change of NaN% (improved AQI) compared to previous years: .