Augusta, 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
Augusta, Maine, United States
AQI Trends: Highest and Lowest
Same Day Analysis (18th October ):
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: 17th Oct - 18th Oct 2025
Augusta, Maine, United States
6 AM17th Oct 2025
6 PM
5 AM18th Oct 2025
60AQI
36AQI
52AQI
31AQI
In the last 24 hours,
Augusta's AQI reached its highest point of 60 at 1 PM during the Day, while the lowest point, 31, was recorded at 6 PM during the Night between 17th Oct and 18th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Augusta, Maine, United States
--°C/°C
19°C13/23°C
13°C7/19°C
12°C3/21°C
14°C5/23°C
17°C12/25°C
16°C13/20°C
16°C12/17°C
20°C17/28°C
18°C13/25°C
19°C13/29°C
18°C12/28°C
17°C11/25°C
11°C7/18°C
10°C3/18°C
12°C4/23°C
18°C9/29°C
18°C9/29°C
20°C12/30°C
19°C12/28°C
16°C8/18°C
8°C4/13°C
7°C1/17°C
10°C3/21°C
10°C4/19°C
11°C8/16°C
12°C7/18°C
11°C6/16°C
7°C5/10°C
10°C5/18°C
9°C3/18°C
35AQI
31AQI
38AQI
33AQI
2025 Days Vs Air Quality
Augusta, Maine, United States
89%
184
10%
21
0.4%
1
Total number of days with different AQI categories in last 292 days in 2025 (73 days remaining)
Under WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2025, 89% of 292 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
Augusta, Maine, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI
24AQI
19AQI
30AQI
25AQI
17AQI
17AQI
21AQI
20AQI
19AQI
13AQI
16AQI
18AQI
16AQI
22AQI
27AQI
22AQI
18AQI
15AQI
23AQI
13AQI
19AQI
28AQI
38AQI
24AQI
16AQI
23AQI
18AQI
17AQI
23AQI
27AQI
10AQI
18AQI
34AQI
20AQI
16AQI
31AQI
29AQI
18AQI
18AQI
16AQI
22AQI
19AQI
18AQI
14AQI
16AQI
20AQI
20AQI
22AQI
28AQI
26AQI
19AQI
16AQI
12AQI
11AQI
15AQI
17AQI
11AQI
12AQI
12AQI
15AQI
22AQI
28AQI
25AQI
25AQI
26AQI
13AQI
16AQI
21AQI
34AQI
56AQI
63AQI
57AQI
71AQI
67AQI
40AQI
41AQI
62AQI
33AQI
31AQI
30AQI
30AQI
26AQI
21AQI
32AQI
33AQI
30AQI
34AQI
40AQI
53AQI
49AQI
24AQI
23AQI
22AQI
23AQI
30AQI
33AQI
29AQI
47AQI
36AQI
26AQI
39AQI
54AQI
34AQI
31AQI
29AQI
28AQI
28AQI
19AQI
22AQI
44AQI
53AQI
40AQI
18AQI
27AQI
25AQI
27AQI
15AQI
24AQI
31AQI
48AQI
107AQI
66AQI
60AQI
51AQI
53AQI
71AQI
40AQI
26AQI
56AQI
83AQI
59AQI
40AQI
52AQI
39AQI
31AQI
35AQI
45AQI
58AQI
59AQI
46AQI
27AQI
27AQI
28AQI
15AQI
15AQI
17AQI
20AQI
23AQI
32AQI
32AQI
25AQI
15AQI
17AQI
20AQI
22AQI
19AQI
18AQI
25AQI
28AQI
28AQI
27AQI
26AQI
38AQI
26AQI
20AQI
19AQI
21AQI
24AQI
22AQI
23AQI
25AQI
25AQI
24AQI
29AQI
23AQI
18AQI
15AQI
18AQI
16AQI
20AQI
24AQI
17AQI
14AQI
16AQI
20AQI
25AQI
31AQI
17AQI
12AQI
23AQI
43AQI
53AQI
50AQI
44AQI
18AQI
18AQI
22AQI
27AQI
33AQI
22AQI
18AQI
17AQI
18AQI
25AQI
29AQI
24AQI
20AQI
19AQI
37AQI
39AQI
34AQI
23AQI
27AQI
No. of days
202528AQI
Highest AQI recorded in
July39AQI
Lowest AQI recorded in
May19AQI
Most & Least Polluted Years Over the Last 1 Years
Augusta's annual 2025 AQI (28) shows an average percentage change of NaN% (improved AQI) compared to previous years: .