Milton Blue Hill Observatory, Milton, Massachusetts, 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
Milton Blue Hill Observatory, Milton, Massachusetts, United States
AQI Trends: Highest and Lowest
Same Day Analysis (16th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 30 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Milton Blue Hill Observatory, Milton, Massachusetts, United States
5 AM15th Aug 2026
8 PM
4 AM16th Aug 2026
42AQI
9AQI
46AQI
16AQI
In the last 24 hours,
Milton Blue Hill Observatory's AQI reached its highest point of 46 at 11 PM during the Night, while the lowest point, 9, was recorded at 3 PM during the Day between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Milton Blue Hill Observatory, Milton, Massachusetts, United States
21°C15/31°C
23°C19/28°C
22°C14/30°C
21°C15/29°C
24°C20/30°C
21°C15/27°C
22°C14/30°C
21°C15/30°C
18°C12/26°C
21°C11/31°C
23°C18/29°C
20°C18/24°C
18°C16/20°C
21°C16/29°C
24°C18/32°C
25°C20/31°C
23°C20/25°C
24°C17/32°C
24°C17/32°C
27°C22/31°C
29°C23/37°C
27°C21/34°C
27°C21/34°C
25°C18/34°C
26°C21/33°C
24°C17/32°C
24°C19/31°C
23°C16/30°C
21°C15/27°C
21°C17/28°C
36AQI
29AQI
35AQI
29AQI
2026 Days Vs Air Quality
Milton Blue Hill Observatory, Milton, Massachusetts, United States
97%
218
3%
7
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2026, 97% of 228 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
Milton Blue Hill Observatory, Milton, Massachusetts, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI (US)
21AQI (US)
21AQI (US)
26AQI (US)
24AQI (US)
54AQI (US)
38AQI (US)
23AQI (US)
24AQI (US)
16AQI (US)
13AQI (US)
13AQI (US)
27AQI (US)
28AQI (US)
34AQI (US)
12AQI (US)
30AQI (US)
63AQI (US)
28AQI (US)
37AQI (US)
27AQI (US)
46AQI (US)
50AQI (US)
42AQI (US)
50AQI (US)
47AQI (US)
36AQI (US)
28AQI (US)
33AQI (US)
48AQI (US)
34AQI (US)
35AQI (US)
45AQI (US)
43AQI (US)
38AQI (US)
53AQI (US)
39AQI (US)
28AQI (US)
29AQI (US)
44AQI (US)
47AQI (US)
28AQI (US)
35AQI (US)
37AQI (US)
38AQI (US)
27AQI (US)
42AQI (US)
35AQI (US)
42AQI (US)
43AQI (US)
26AQI (US)
32AQI (US)
28AQI (US)
36AQI (US)
44AQI (US)
37AQI (US)
27AQI (US)
31AQI (US)
26AQI (US)
30AQI (US)
47AQI (US)
32AQI (US)
43AQI (US)
33AQI (US)
19AQI (US)
37AQI (US)
27AQI (US)
35AQI (US)
32AQI (US)
38AQI (US)
26AQI (US)
34AQI (US)
27AQI (US)
32AQI (US)
29AQI (US)
31AQI (US)
29AQI (US)
30AQI (US)
36AQI (US)
35AQI (US)
28AQI (US)
40AQI (US)
29AQI (US)
27AQI (US)
18AQI (US)
22AQI (US)
31AQI (US)
24AQI (US)
20AQI (US)
26AQI (US)
27AQI (US)
20AQI (US)
20AQI (US)
27AQI (US)
28AQI (US)
31AQI (US)
26AQI (US)
30AQI (US)
21AQI (US)
25AQI (US)
27AQI (US)
24AQI (US)
23AQI (US)
23AQI (US)
23AQI (US)
23AQI (US)
24AQI (US)
33AQI (US)
29AQI (US)
22AQI (US)
19AQI (US)
20AQI (US)
26AQI (US)
33AQI (US)
17AQI (US)
21AQI (US)
21AQI (US)
24AQI (US)
24AQI (US)
20AQI (US)
21AQI (US)
35AQI (US)
35AQI (US)
21AQI (US)
24AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
25AQI (US)
21AQI (US)
16AQI (US)
44AQI (US)
46AQI (US)
50AQI (US)
55AQI (US)
53AQI (US)
47AQI (US)
40AQI (US)
33AQI (US)
42AQI (US)
45AQI (US)
45AQI (US)
20AQI (US)
14AQI (US)
15AQI (US)
19AQI (US)
16AQI (US)
23AQI (US)
15AQI (US)
15AQI (US)
16AQI (US)
16AQI (US)
21AQI (US)
30AQI (US)
14AQI (US)
12AQI (US)
15AQI (US)
16AQI (US)
19AQI (US)
17AQI (US)
12AQI (US)
13AQI (US)
14AQI (US)
18AQI (US)
17AQI (US)
19AQI (US)
13AQI (US)
20AQI (US)
19AQI (US)
15AQI (US)
16AQI (US)
14AQI (US)
16AQI (US)
12AQI (US)
22AQI (US)
18AQI (US)
18AQI (US)
22AQI (US)
15AQI (US)
27AQI (US)
30AQI (US)
27AQI (US)
28AQI (US)
22AQI (US)
18AQI (US)
20AQI (US)
16AQI (US)
16AQI (US)
25AQI (US)
16AQI (US)
19AQI (US)
21AQI (US)
52AQI (US)
44AQI (US)
41AQI (US)
93AQI (US)
46AQI (US)
30AQI (US)
39AQI (US)
27AQI (US)
18AQI (US)
24AQI (US)
30AQI (US)
31AQI (US)
33AQI (US)
34AQI (US)
27AQI (US)
23AQI (US)
26AQI (US)
34AQI (US)
30AQI (US)
33AQI (US)
20AQI (US)
29AQI (US)
37AQI (US)
41AQI (US)
30AQI (US)
34AQI (US)
28AQI (US)
34AQI (US)
29AQI (US)
32AQI (US)
31AQI (US)
23AQI (US)
30AQI (US)
32AQI (US)
36AQI (US)
31AQI (US)
25AQI (US)
31AQI (US)
17AQI (US)
30AQI (US)
31AQI (US)
No. of days
202629AQI (US)
Highest AQI (US) recorded in
February36AQI (US)
Lowest AQI (US) recorded in
June17AQI (US)
202530AQI (US)
Highest AQI (US) recorded in
June42AQI (US)
Lowest AQI (US) recorded in
April21AQI (US)
202432AQI (US)
Highest AQI (US) recorded in
August39AQI (US)
Lowest AQI (US) recorded in
November25AQI (US)
202335AQI (US)
Highest AQI (US) recorded in
July45AQI (US)
Lowest AQI (US) recorded in
November29AQI (US)
202233AQI (US)
Highest AQI (US) recorded in
January37AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202130AQI (US)
Highest AQI (US) recorded in
January33AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
202030AQI (US)
Highest AQI (US) recorded in
August36AQI (US)
Lowest AQI (US) recorded in
May27AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Milton Blue Hill Observatory's annual 2026 AQI (US) (29) shows an average percentage change of -8.1% (improved AQI (US)) compared to previous years: 2020 (30), 2021 (30), 2022 (33), 2023 (35), 2024 (32), 2025 (30).