Gardiner, 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
Gardiner, 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 32 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Gardiner, Maine, United States
6 AM18th Oct 2025
6 PM
5 AM19th Oct 2025
42AQI
8AQI
50AQI
9AQI
In the last 24 hours,
Gardiner's AQI reached its highest point of 50 at 10 PM during the Night, while the lowest point, 8, was recorded at 5 PM during the Day between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Gardiner, Maine, United States
18°C13/23°C
12°C7/19°C
12°C2/20°C
14°C5/23°C
17°C12/27°C
16°C13/21°C
16°C12/17°C
21°C16/27°C
18°C13/24°C
19°C13/29°C
18°C11/28°C
17°C11/25°C
11°C6/17°C
10°C3/19°C
12°C4/23°C
17°C8/29°C
17°C8/28°C
19°C11/30°C
19°C11/27°C
16°C8/18°C
8°C4/13°C
7°C0/16°C
10°C3/20°C
11°C4/19°C
11°C8/15°C
12°C7/19°C
11°C6/16°C
8°C5/11°C
10°C6/17°C
9°C2/18°C
--°C/°C
28AQI
20AQI
27AQI
20AQI
2025 Days Vs Air Quality
Gardiner, Maine, United States
90%
186
9%
19
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: 90%
Health Risk Level:
Very Low
In 2025, 90% of 292 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
Gardiner, Maine, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
23AQI
19AQI
28AQI
22AQI
17AQI
17AQI
19AQI
20AQI
17AQI
13AQI
15AQI
17AQI
16AQI
20AQI
26AQI
25AQI
16AQI
16AQI
21AQI
16AQI
19AQI
27AQI
40AQI
32AQI
13AQI
21AQI
16AQI
16AQI
22AQI
21AQI
9AQI
18AQI
33AQI
20AQI
16AQI
26AQI
26AQI
18AQI
18AQI
14AQI
19AQI
17AQI
17AQI
13AQI
17AQI
20AQI
20AQI
21AQI
26AQI
24AQI
18AQI
15AQI
12AQI
11AQI
14AQI
16AQI
11AQI
12AQI
12AQI
15AQI
21AQI
28AQI
23AQI
25AQI
23AQI
14AQI
16AQI
21AQI
32AQI
55AQI
62AQI
55AQI
68AQI
65AQI
37AQI
39AQI
61AQI
33AQI
30AQI
27AQI
29AQI
24AQI
20AQI
27AQI
31AQI
28AQI
31AQI
37AQI
53AQI
48AQI
25AQI
25AQI
22AQI
20AQI
27AQI
31AQI
28AQI
46AQI
35AQI
28AQI
37AQI
53AQI
34AQI
29AQI
28AQI
24AQI
26AQI
19AQI
18AQI
37AQI
49AQI
39AQI
17AQI
27AQI
25AQI
27AQI
16AQI
25AQI
30AQI
47AQI
107AQI
65AQI
59AQI
51AQI
53AQI
68AQI
37AQI
28AQI
59AQI
83AQI
56AQI
38AQI
52AQI
39AQI
32AQI
33AQI
45AQI
58AQI
59AQI
44AQI
26AQI
29AQI
31AQI
15AQI
16AQI
18AQI
21AQI
24AQI
32AQI
33AQI
24AQI
15AQI
17AQI
20AQI
21AQI
19AQI
19AQI
26AQI
29AQI
27AQI
27AQI
25AQI
35AQI
25AQI
21AQI
19AQI
21AQI
24AQI
21AQI
23AQI
27AQI
25AQI
23AQI
27AQI
21AQI
17AQI
16AQI
18AQI
15AQI
18AQI
22AQI
17AQI
15AQI
16AQI
20AQI
28AQI
35AQI
18AQI
11AQI
18AQI
40AQI
47AQI
45AQI
43AQI
17AQI
18AQI
21AQI
24AQI
31AQI
22AQI
19AQI
15AQI
19AQI
26AQI
32AQI
23AQI
20AQI
18AQI
35AQI
38AQI
34AQI
23AQI
26AQI
No. of days
202528AQI
Highest AQI recorded in
July38AQI
Lowest AQI recorded in
May18AQI
Most & Least Polluted Years Over the Last 1 Years
Gardiner's annual 2025 AQI (28) shows an average percentage change of NaN% (improved AQI) compared to previous years: .