Cape Elizabeth, Maine, 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
Cape Elizabeth, Maine, United States
AQI Trends: Highest and Lowest
Same Day Analysis (17th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 28 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Oct - 18th Oct 2025
Cape Elizabeth, Maine, United States
6 AM17th Oct 2025
6 PM
5 AM18th Oct 2025
41AQI
9AQI
52AQI
10AQI
In the last 24 hours,
Cape Elizabeth's AQI reached its highest point of 52 at 1 AM during the Night, while the lowest point, 9, was recorded at 8 AM during the Day between 17th Oct and 18th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Cape Elizabeth, Maine, United States
17°C15/19°C
19°C16/23°C
14°C11/19°C
14°C7/19°C
15°C9/20°C
18°C14/23°C
16°C15/17°C
17°C15/18°C
20°C17/24°C
17°C14/20°C
20°C16/28°C
19°C13/26°C
17°C15/22°C
14°C10/19°C
12°C8/18°C
14°C7/22°C
18°C10/27°C
17°C12/23°C
19°C14/25°C
19°C15/23°C
16°C10/18°C
10°C6/16°C
10°C3/16°C
12°C7/17°C
12°C9/15°C
13°C11/15°C
13°C10/17°C
13°C8/17°C
9°C7/12°C
12°C8/18°C
--°C/°C
28AQI
22AQI
28AQI
22AQI
2025 Days Vs Air Quality
Cape Elizabeth, Maine, United States
90%
185
9%
19
0.4%
1
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 291 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Cape Elizabeth, Maine, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
19AQI
20AQI
19AQI
25AQI
24AQI
18AQI
17AQI
21AQI
22AQI
19AQI
12AQI
15AQI
15AQI
17AQI
20AQI
21AQI
19AQI
22AQI
16AQI
27AQI
21AQI
17AQI
24AQI
40AQI
19AQI
14AQI
26AQI
19AQI
19AQI
30AQI
25AQI
11AQI
17AQI
32AQI
20AQI
17AQI
32AQI
36AQI
25AQI
19AQI
17AQI
24AQI
22AQI
22AQI
13AQI
16AQI
21AQI
24AQI
26AQI
34AQI
33AQI
23AQI
15AQI
12AQI
11AQI
15AQI
17AQI
11AQI
11AQI
13AQI
16AQI
22AQI
28AQI
21AQI
26AQI
22AQI
16AQI
18AQI
21AQI
40AQI
60AQI
57AQI
52AQI
78AQI
76AQI
38AQI
44AQI
66AQI
40AQI
35AQI
31AQI
30AQI
25AQI
21AQI
31AQI
33AQI
36AQI
40AQI
46AQI
54AQI
50AQI
32AQI
26AQI
21AQI
25AQI
28AQI
36AQI
32AQI
45AQI
40AQI
36AQI
47AQI
52AQI
35AQI
30AQI
27AQI
24AQI
25AQI
18AQI
20AQI
31AQI
40AQI
38AQI
17AQI
27AQI
23AQI
27AQI
16AQI
24AQI
33AQI
47AQI
107AQI
75AQI
60AQI
56AQI
50AQI
70AQI
51AQI
28AQI
55AQI
82AQI
76AQI
50AQI
62AQI
34AQI
32AQI
35AQI
50AQI
61AQI
59AQI
48AQI
39AQI
34AQI
45AQI
18AQI
17AQI
18AQI
19AQI
26AQI
43AQI
35AQI
25AQI
17AQI
17AQI
20AQI
25AQI
19AQI
20AQI
29AQI
33AQI
30AQI
26AQI
29AQI
39AQI
28AQI
22AQI
21AQI
22AQI
25AQI
24AQI
26AQI
29AQI
31AQI
25AQI
26AQI
23AQI
23AQI
18AQI
21AQI
18AQI
22AQI
25AQI
19AQI
19AQI
18AQI
37AQI
40AQI
40AQI
19AQI
9AQI
15AQI
35AQI
49AQI
50AQI
45AQI
16AQI
14AQI
18AQI
23AQI
35AQI
41AQI
22AQI
15AQI
16AQI
28AQI
21AQI
21AQI
21AQI
39AQI
39AQI
37AQI
26AQI
26AQI
No. of days
202530AQI
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
April21AQI
Most & Least Polluted Years Over the Last 1 Years
Cape Elizabeth's annual 2025 AQI (30) shows an average percentage change of NaN% (improved AQI) compared to previous years: .