Stanmore, Harrow, United Kingdom Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
June Air Quality Analysis
Stanmore, Harrow, United Kingdom
AQI Trends: Highest and Lowest
Same Day Analysis (3rd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 27 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jun - 3rd Jun 2026
Stanmore, Harrow, United Kingdom
5 AM2nd Jun 2026
8 PM
4 AM3rd Jun 2026
34AQI
24AQI
30AQI
28AQI
In the last 24 hours,
Stanmore's AQI reached its highest point of 34 at 4 PM during the Day, while the lowest point, 24, was recorded at 6 PM during the Day between 2nd Jun and 3rd Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Stanmore, Harrow, United Kingdom
12°C9/15°C
10°C7/13°C
11°C6/16°C
12°C7/17°C
14°C8/19°C
10°C6/13°C
7°C4/11°C
9°C4/14°C
9°C6/11°C
8°C4/12°C
8°C5/14°C
9°C4/13°C
11°C7/16°C
10°C7/14°C
13°C10/18°C
15°C11/19°C
16°C10/22°C
19°C13/25°C
21°C15/27°C
22°C15/30°C
25°C17/32°C
26°C19/33°C
20°C15/25°C
22°C14/30°C
20°C17/24°C
20°C13/28°C
17°C13/22°C
17°C11/22°C
16°C13/18°C
14°C11/17°C
37AQI
33AQI
37AQI
36AQI
2026 Days Vs Air Quality
Stanmore, Harrow, United Kingdom
83%
126
17%
25
Total number of days with different AQI categories in last 154 days in 2026 (211 days remaining)
Under WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% of 154 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
Stanmore, Harrow, United Kingdom
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
44AQI (US)
25AQI (US)
27AQI (US)
38AQI (US)
45AQI (US)
54AQI (US)
23AQI (US)
44AQI (US)
23AQI (US)
28AQI (US)
48AQI (US)
18AQI (US)
15AQI (US)
28AQI (US)
17AQI (US)
28AQI (US)
35AQI (US)
76AQI (US)
64AQI (US)
28AQI (US)
15AQI (US)
36AQI (US)
55AQI (US)
52AQI (US)
54AQI (US)
87AQI (US)
41AQI (US)
31AQI (US)
52AQI (US)
54AQI (US)
40AQI (US)
46AQI (US)
53AQI (US)
63AQI (US)
38AQI (US)
54AQI (US)
55AQI (US)
39AQI (US)
42AQI (US)
47AQI (US)
46AQI (US)
43AQI (US)
38AQI (US)
47AQI (US)
44AQI (US)
38AQI (US)
39AQI (US)
47AQI (US)
46AQI (US)
48AQI (US)
44AQI (US)
37AQI (US)
32AQI (US)
37AQI (US)
37AQI (US)
39AQI (US)
32AQI (US)
35AQI (US)
33AQI (US)
36AQI (US)
49AQI (US)
52AQI (US)
57AQI (US)
68AQI (US)
61AQI (US)
29AQI (US)
69AQI (US)
95AQI (US)
40AQI (US)
24AQI (US)
39AQI (US)
38AQI (US)
36AQI (US)
26AQI (US)
21AQI (US)
34AQI (US)
32AQI (US)
37AQI (US)
55AQI (US)
26AQI (US)
37AQI (US)
60AQI (US)
49AQI (US)
17AQI (US)
20AQI (US)
26AQI (US)
33AQI (US)
26AQI (US)
23AQI (US)
27AQI (US)
28AQI (US)
26AQI (US)
27AQI (US)
26AQI (US)
29AQI (US)
27AQI (US)
30AQI (US)
46AQI (US)
35AQI (US)
21AQI (US)
30AQI (US)
31AQI (US)
30AQI (US)
28AQI (US)
31AQI (US)
34AQI (US)
26AQI (US)
26AQI (US)
26AQI (US)
23AQI (US)
22AQI (US)
22AQI (US)
44AQI (US)
50AQI (US)
49AQI (US)
33AQI (US)
21AQI (US)
24AQI (US)
28AQI (US)
41AQI (US)
41AQI (US)
53AQI (US)
39AQI (US)
28AQI (US)
29AQI (US)
43AQI (US)
33AQI (US)
23AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
32AQI (US)
34AQI (US)
38AQI (US)
33AQI (US)
34AQI (US)
33AQI (US)
36AQI (US)
32AQI (US)
43AQI (US)
61AQI (US)
40AQI (US)
41AQI (US)
54AQI (US)
52AQI (US)
33AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
40AQI (US)
43AQI (US)
40AQI (US)
30AQI (US)
36AQI (US)
27AQI (US)
No. of days
202638AQI (US)
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
June27AQI (US)
202540AQI (US)
Highest AQI (US) recorded in
March60AQI (US)
Lowest AQI (US) recorded in
September26AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
March67AQI (US)
Lowest AQI (US) recorded in
April4AQI (US)
202339AQI (US)
Highest AQI (US) recorded in
February49AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202243AQI (US)
Highest AQI (US) recorded in
December51AQI (US)
Lowest AQI (US) recorded in
August22AQI (US)
202143AQI (US)
Highest AQI (US) recorded in
September54AQI (US)
Lowest AQI (US) recorded in
April33AQI (US)
202038AQI (US)
Highest AQI (US) recorded in
April55AQI (US)
Lowest AQI (US) recorded in
July25AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Stanmore's annual 2026 AQI (US) (38) shows an average percentage change of -3.7% (improved AQI (US)) compared to previous years: 2020 (38), 2021 (43), 2022 (43), 2023 (39), 2024 (35), 2025 (40).