Milton, Ontario, Canada 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
Milton, Ontario, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (21st August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 18 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Aug - 22nd Aug 2025
Milton, Ontario, Canada
6 AM21st Aug 2025
8 PM
5 AM22nd Aug 2025
19AQI
16AQI
25AQI
18AQI
In the last 24 hours,
Milton's AQI reached its highest point of 25 at 5 AM during the Night, while the lowest point, 16, was recorded at 8 PM during the Day between 21st Aug and 22nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Milton, Ontario, Canada
22°C19/26°C
26°C18/33°C
25°C22/28°C
23°C20/26°C
27°C22/33°C
26°C19/33°C
26°C22/30°C
25°C21/27°C
22°C18/24°C
21°C17/27°C
21°C14/25°C
23°C16/29°C
23°C18/28°C
23°C20/25°C
23°C21/25°C
24°C20/28°C
24°C20/30°C
25°C21/30°C
26°C21/32°C
26°C22/32°C
26°C22/31°C
26°C22/29°C
23°C18/29°C
24°C21/26°C
26°C21/31°C
23°C22/23°C
20°C17/24°C
21°C18/24°C
21°C19/22°C
21°C18/25°C
--°C/°C
53AQI
53AQI
52AQI
50AQI
2025 Days Vs Air Quality
Milton, Ontario, Canada
76%
113
22%
32
2%
3
Total number of days with different AQI categories in last 234 days in 2025 (131 days remaining)
Under WHO’s Safe Air Quality Limits: 76%
Health Risk Level:
Low
In 2025, 76% of 234 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
Milton, Ontario, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
25AQI
28AQI
23AQI
24AQI
17AQI
18AQI
26AQI
18AQI
22AQI
18AQI
21AQI
14AQI
19AQI
37AQI
35AQI
30AQI
35AQI
31AQI
20AQI
14AQI
18AQI
36AQI
44AQI
18AQI
22AQI
17AQI
22AQI
42AQI
44AQI
31AQI
14AQI
30AQI
39AQI
20AQI
34AQI
34AQI
19AQI
18AQI
20AQI
23AQI
31AQI
19AQI
23AQI
25AQI
21AQI
30AQI
39AQI
27AQI
29AQI
35AQI
31AQI
19AQI
16AQI
15AQI
17AQI
14AQI
12AQI
13AQI
13AQI
20AQI
28AQI
28AQI
29AQI
34AQI
28AQI
16AQI
19AQI
37AQI
66AQI
55AQI
64AQI
66AQI
80AQI
68AQI
54AQI
62AQI
67AQI
42AQI
31AQI
38AQI
40AQI
40AQI
43AQI
30AQI
40AQI
51AQI
53AQI
54AQI
55AQI
46AQI
46AQI
40AQI
35AQI
36AQI
44AQI
42AQI
41AQI
49AQI
34AQI
49AQI
54AQI
47AQI
35AQI
44AQI
43AQI
52AQI
49AQI
45AQI
43AQI
57AQI
68AQI
43AQI
24AQI
32AQI
27AQI
43AQI
23AQI
24AQI
38AQI
39AQI
51AQI
46AQI
54AQI
49AQI
51AQI
88AQI
58AQI
41AQI
114AQI
133AQI
104AQI
86AQI
90AQI
87AQI
67AQI
66AQI
63AQI
55AQI
46AQI
66AQI
72AQI
61AQI
41AQI
15AQI
22AQI
20AQI
18AQI
25AQI
26AQI
24AQI
47AQI
45AQI
63AQI
No. of days
202539AQI
Highest AQI recorded in
August63AQI
Lowest AQI recorded in
May24AQI
Most & Least Polluted Years Over the Last 1 Years
Milton's annual 2025 AQI (39) shows an average percentage change of NaN% (improved AQI) compared to previous years: .