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!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
November Air Quality Analysis
Stanmore, Harrow, United Kingdom
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Nov 2024
81AQILowest AQI recorded on
16th Nov 2022
20AQISame Day Analysis (4th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 29 of Good air quality, showing improvement over 2024, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Nov - 5th Nov 2025
Stanmore, Harrow, United Kingdom
AQI
Day
Night
.
7 AM4th Nov 2025
5 PM
6 AM5th Nov 2025
Day time
Avg. Highest Time
11AM4th Nov
33AQI
Avg. Lowest Time
8AM4th Nov
22AQI
Night time
Avg. Highest Time
11PM4th Nov
39AQI
Avg. Lowest Time
6AM5th Nov
28AQI
In the last 24 hours,
Stanmore's AQI reached its highest point of 39 at 11 PM during the Night, while the lowest point, 22, was recorded at 8 AM during the Day between 4th Nov and 5th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Stanmore, Harrow, United Kingdom
OctNov
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Oct 2025217 AMAQI
6th Oct 2025248 AMAQI
6th Oct 2025399 AMAQI
6th Oct 20254410 AMAQI
6th Oct 20254011 AMAQI
6th Oct 20254312 PMAQI
6th Oct 2025421 PMAQI
6th Oct 2025462 PMAQI
6th Oct 2025403 PMAQI
6th Oct 2025404 PMAQI
6th Oct 2025435 PMAQI
6th Oct 2025386 PMAQI
15°C11/20°C
7th Oct 20253412 PMAQI
7th Oct 2025441 PMAQI
7th Oct 2025442 PMAQI
7th Oct 2025453 PMAQI
7th Oct 2025404 PMAQI
7th Oct 2025415 PMAQI
7th Oct 2025406 PMAQI
7th Oct 2025457 PMAQI
7th Oct 2025528 PMAQI
7th Oct 2025569 PMAQI
7th Oct 20256810 PMAQI
7th Oct 20256611 PMAQI
8th Oct 20256312 AMAQI
8th Oct 2025621 AMAQI
8th Oct 2025632 AMAQI
8th Oct 2025583 AMAQI
8th Oct 2025584 AMAQI
8th Oct 2025565 AMAQI
8th Oct 2025436 AMAQI
14°C12/18°C
8th Oct 2025397 AMAQI
8th Oct 2025378 AMAQI
8th Oct 2025449 AMAQI
8th Oct 20255010 AMAQI
8th Oct 20255111 AMAQI
8th Oct 20255212 PMAQI
8th Oct 2025491 PMAQI
8th Oct 2025522 PMAQI
8th Oct 2025483 PMAQI
8th Oct 2025404 PMAQI
8th Oct 2025405 PMAQI
8th Oct 2025446 PMAQI
8th Oct 2025517 PMAQI
8th Oct 2025558 PMAQI
8th Oct 2025569 PMAQI
8th Oct 20255910 PMAQI
8th Oct 20256711 PMAQI
9th Oct 20257212 AMAQI
9th Oct 2025661 AMAQI
9th Oct 2025592 AMAQI
9th Oct 2025563 AMAQI
9th Oct 2025554 AMAQI
9th Oct 2025535 AMAQI
9th Oct 2025546 AMAQI
14°C11/17°C
9th Oct 2025527 AMAQI
9th Oct 2025538 AMAQI
9th Oct 2025569 AMAQI
9th Oct 20255810 AMAQI
9th Oct 20255711 AMAQI
9th Oct 20256012 PMAQI
9th Oct 2025571 PMAQI
9th Oct 2025532 PMAQI
9th Oct 2025513 PMAQI
9th Oct 2025464 PMAQI
9th Oct 2025495 PMAQI
9th Oct 2025446 PMAQI
9th Oct 2025477 PMAQI
9th Oct 2025558 PMAQI
9th Oct 2025609 PMAQI
9th Oct 20256810 PMAQI
9th Oct 20256811 PMAQI
10th Oct 20256512 AMAQI
10th Oct 2025681 AMAQI
10th Oct 2025622 AMAQI
10th Oct 2025603 AMAQI
10th Oct 2025594 AMAQI
10th Oct 2025585 AMAQI
10th Oct 2025596 AMAQI
13°C10/17°C
10th Oct 2025577 AMAQI
10th Oct 2025568 AMAQI
10th Oct 2025559 AMAQI
10th Oct 20255610 AMAQI
10th Oct 20255811 AMAQI
10th Oct 20255712 PMAQI
10th Oct 2025611 PMAQI
10th Oct 2025622 PMAQI
10th Oct 2025603 PMAQI
10th Oct 2025624 PMAQI
10th Oct 2025675 PMAQI
10th Oct 2025676 PMAQI
10th Oct 2025637 PMAQI
10th Oct 2025698 PMAQI
10th Oct 2025719 PMAQI
10th Oct 20257610 PMAQI
10th Oct 20257111 PMAQI
11th Oct 20257212 AMAQI
11th Oct 2025701 AMAQI
11th Oct 2025712 AMAQI
11th Oct 2025703 AMAQI
11th Oct 2025724 AMAQI
11th Oct 2025755 AMAQI
11th Oct 2025746 AMAQI
14°C11/17°C
11th Oct 2025737 AMAQI
11th Oct 2025678 AMAQI
11th Oct 2025689 AMAQI
11th Oct 20256610 AMAQI
11th Oct 20256311 AMAQI
11th Oct 20256112 PMAQI
11th Oct 2025621 PMAQI
11th Oct 2025622 PMAQI
11th Oct 2025663 PMAQI
11th Oct 2025664 PMAQI
11th Oct 2025665 PMAQI
11th Oct 2025736 PMAQI
11th Oct 2025757 PMAQI
11th Oct 2025798 PMAQI
11th Oct 2025879 PMAQI
11th Oct 20259710 PMAQI
11th Oct 20259811 PMAQI
12th Oct 202510512 AMAQI
12th Oct 20251021 AMAQI
12th Oct 2025992 AMAQI
12th Oct 2025873 AMAQI
12th Oct 2025854 AMAQI
12th Oct 2025835 AMAQI
12th Oct 2025906 AMAQI
14°C11/17°C
12th Oct 2025887 AMAQI
12th Oct 2025898 AMAQI
12th Oct 2025779 AMAQI
12th Oct 20258310 AMAQI
12th Oct 20258611 AMAQI
12th Oct 20258412 PMAQI
12th Oct 2025851 PMAQI
12th Oct 2025892 PMAQI
12th Oct 2025863 PMAQI
12th Oct 2025774 PMAQI
12th Oct 2025785 PMAQI
12th Oct 2025826 PMAQI
12th Oct 2025767 PMAQI
12th Oct 2025758 PMAQI
12th Oct 2025849 PMAQI
12th Oct 20258310 PMAQI
12th Oct 20257611 PMAQI
13th Oct 20256412 AMAQI
13th Oct 2025631 AMAQI
13th Oct 2025582 AMAQI
13th Oct 2025553 AMAQI
13th Oct 2025524 AMAQI
13th Oct 2025485 AMAQI
13th Oct 2025536 AMAQI
13°C10/17°C
13th Oct 2025647 AMAQI
13th Oct 2025678 AMAQI
13th Oct 2025739 AMAQI
13th Oct 20257010 AMAQI
13th Oct 20256911 AMAQI
13th Oct 20256812 PMAQI
13th Oct 2025541 PMAQI
13th Oct 2025482 PMAQI
13th Oct 2025453 PMAQI
13th Oct 2025454 PMAQI
13th Oct 2025455 PMAQI
13th Oct 2025456 PMAQI
13th Oct 2025447 PMAQI
13th Oct 2025468 PMAQI
13th Oct 2025489 PMAQI
13th Oct 20255310 PMAQI
13th Oct 20254811 PMAQI
14th Oct 20254412 AMAQI
14th Oct 2025421 AMAQI
14th Oct 2025432 AMAQI
14th Oct 2025373 AMAQI
14th Oct 2025344 AMAQI
14th Oct 2025265 AMAQI
14th Oct 2025276 AMAQI
14°C12/15°C
14th Oct 2025257 AMAQI
14th Oct 2025288 AMAQI
14th Oct 2025319 AMAQI
14th Oct 20252010 AMAQI
14th Oct 20253111 AMAQI
14th Oct 20251412 PMAQI
14th Oct 2025131 PMAQI
14th Oct 2025182 PMAQI
14th Oct 2025363 PMAQI
14th Oct 2025434 PMAQI
14th Oct 2025365 PMAQI
14th Oct 2025466 PMAQI
14th Oct 2025467 PMAQI
14th Oct 2025488 PMAQI
14th Oct 2025529 PMAQI
14th Oct 20255510 PMAQI
14th Oct 20255511 PMAQI
15th Oct 20255612 AMAQI
15th Oct 2025521 AMAQI
15th Oct 2025502 AMAQI
15th Oct 2025493 AMAQI
15th Oct 2025404 AMAQI
15th Oct 2025405 AMAQI
15th Oct 2025376 AMAQI
12°C10/14°C
15th Oct 2025407 AMAQI
15th Oct 2025268 AMAQI
15th Oct 2025339 AMAQI
15th Oct 20254010 AMAQI
15th Oct 20253911 AMAQI
15th Oct 20254012 PMAQI
15th Oct 2025401 PMAQI
15th Oct 2025432 PMAQI
15th Oct 2025423 PMAQI
15th Oct 2025454 PMAQI
15th Oct 2025385 PMAQI
15th Oct 2025446 PMAQI
15th Oct 2025407 PMAQI
15th Oct 2025508 PMAQI
15th Oct 2025549 PMAQI
15th Oct 20255910 PMAQI
15th Oct 20255911 PMAQI
16th Oct 20255712 AMAQI
16th Oct 2025571 AMAQI
16th Oct 2025542 AMAQI
16th Oct 2025493 AMAQI
16th Oct 2025494 AMAQI
16th Oct 2025415 AMAQI
16th Oct 2025406 AMAQI
12°C11/15°C
16th Oct 2025467 AMAQI
16th Oct 2025288 AMAQI
16th Oct 2025329 AMAQI
16th Oct 20254510 AMAQI
16th Oct 20254711 AMAQI
16th Oct 20255312 PMAQI
16th Oct 2025541 PMAQI
16th Oct 2025522 PMAQI
16th Oct 2025503 PMAQI
16th Oct 2025454 PMAQI
16th Oct 2025405 PMAQI
16th Oct 2025496 PMAQI
16th Oct 2025517 PMAQI
16th Oct 2025548 PMAQI
16th Oct 2025579 PMAQI
16th Oct 20256110 PMAQI
16th Oct 20256311 PMAQI
17th Oct 20256812 AMAQI
17th Oct 2025621 AMAQI
17th Oct 2025552 AMAQI
17th Oct 2025543 AMAQI
17th Oct 2025484 AMAQI
17th Oct 2025455 AMAQI
17th Oct 2025486 AMAQI
13°C12/15°C
17th Oct 2025527 AMAQI
17th Oct 2025558 AMAQI
17th Oct 2025569 AMAQI
17th Oct 20255510 AMAQI
17th Oct 20255611 AMAQI
17th Oct 20255312 PMAQI
17th Oct 2025471 PMAQI
17th Oct 2025452 PMAQI
17th Oct 2025463 PMAQI
17th Oct 2025494 PMAQI
17th Oct 2025525 PMAQI
17th Oct 2025466 PMAQI
17th Oct 2025507 PMAQI
17th Oct 2025528 PMAQI
17th Oct 2025599 PMAQI
17th Oct 20255810 PMAQI
17th Oct 20256311 PMAQI
18th Oct 20256512 AMAQI
18th Oct 2025661 AMAQI
18th Oct 2025642 AMAQI
18th Oct 2025633 AMAQI
18th Oct 2025614 AMAQI
18th Oct 2025575 AMAQI
18th Oct 2025606 AMAQI
13°C11/16°C
18th Oct 2025607 AMAQI
18th Oct 2025598 AMAQI
18th Oct 2025639 AMAQI
18th Oct 20256610 AMAQI
18th Oct 20257011 AMAQI
18th Oct 20256912 PMAQI
18th Oct 2025641 PMAQI
18th Oct 2025502 PMAQI
18th Oct 2025423 PMAQI
18th Oct 2025454 PMAQI
18th Oct 2025455 PMAQI
18th Oct 2025506 PMAQI
18th Oct 2025547 PMAQI
18th Oct 2025588 PMAQI
18th Oct 2025609 PMAQI
18th Oct 20257310 PMAQI
18th Oct 20257611 PMAQI
19th Oct 20257312 AMAQI
19th Oct 2025751 AMAQI
19th Oct 2025682 AMAQI
19th Oct 2025663 AMAQI
19th Oct 2025624 AMAQI
19th Oct 2025605 AMAQI
19th Oct 2025566 AMAQI
13°C12/15°C
19th Oct 2025547 AMAQI
19th Oct 2025528 AMAQI
19th Oct 2025539 AMAQI
19th Oct 20255510 AMAQI
19th Oct 20255611 AMAQI
19th Oct 20255712 PMAQI
19th Oct 2025621 PMAQI
19th Oct 2025622 PMAQI
19th Oct 2025683 PMAQI
19th Oct 2025644 PMAQI
19th Oct 2025565 PMAQI
19th Oct 2025546 PMAQI
19th Oct 2025547 PMAQI
19th Oct 2025558 PMAQI
19th Oct 2025549 PMAQI
19th Oct 20255410 PMAQI
19th Oct 20255411 PMAQI
20th Oct 20255412 AMAQI
20th Oct 2025361 AMAQI
20th Oct 2025562 AMAQI
20th Oct 2025403 AMAQI
20th Oct 2025224 AMAQI
20th Oct 2025405 AMAQI
20th Oct 2025216 AMAQI
13°C12/14°C
20th Oct 2025187 AMAQI
20th Oct 2025208 AMAQI
20th Oct 2025229 AMAQI
20th Oct 20252210 AMAQI
20th Oct 20252311 AMAQI
20th Oct 20252212 PMAQI
20th Oct 2025221 PMAQI
20th Oct 2025232 PMAQI
20th Oct 2025193 PMAQI
20th Oct 2025204 PMAQI
20th Oct 2025235 PMAQI
20th Oct 2025266 PMAQI
20th Oct 2025287 PMAQI
20th Oct 2025248 PMAQI
20th Oct 2025439 PMAQI
20th Oct 20257910 PMAQI
20th Oct 20259611 PMAQI
21st Oct 202510612 AMAQI
21st Oct 2025811 AMAQI
21st Oct 2025712 AMAQI
21st Oct 2025643 AMAQI
21st Oct 2025594 AMAQI
21st Oct 2025605 AMAQI
21st Oct 2025586 AMAQI
13°C12/14°C
21st Oct 2025627 AMAQI
21st Oct 2025468 AMAQI
21st Oct 2025479 AMAQI
21st Oct 20251810 AMAQI
21st Oct 20252611 AMAQI
21st Oct 20252212 PMAQI
21st Oct 2025231 PMAQI
21st Oct 2025222 PMAQI
21st Oct 2025273 PMAQI
21st Oct 2025264 PMAQI
21st Oct 2025255 PMAQI
21st Oct 2025256 PMAQI
21st Oct 2025297 PMAQI
21st Oct 2025308 PMAQI
21st Oct 2025379 PMAQI
21st Oct 20255110 PMAQI
21st Oct 20255211 PMAQI
22nd Oct 20256012 AMAQI
22nd Oct 2025651 AMAQI
22nd Oct 2025712 AMAQI
22nd Oct 2025573 AMAQI
22nd Oct 2025444 AMAQI
22nd Oct 2025425 AMAQI
22nd Oct 2025356 AMAQI
12°C10/16°C
22nd Oct 2025357 AMAQI
22nd Oct 2025378 AMAQI
22nd Oct 2025369 AMAQI
22nd Oct 20254310 AMAQI
22nd Oct 20254811 AMAQI
22nd Oct 20255112 PMAQI
22nd Oct 2025471 PMAQI
22nd Oct 2025422 PMAQI
22nd Oct 2025323 PMAQI
22nd Oct 2025304 PMAQI
22nd Oct 2025325 PMAQI
22nd Oct 2025356 PMAQI
22nd Oct 2025387 PMAQI
22nd Oct 2025498 PMAQI
22nd Oct 2025519 PMAQI
22nd Oct 20255410 PMAQI
22nd Oct 20255311 PMAQI
23rd Oct 20254812 AMAQI
23rd Oct 2025451 AMAQI
23rd Oct 2025382 AMAQI
23rd Oct 2025243 AMAQI
23rd Oct 2025174 AMAQI
23rd Oct 2025155 AMAQI
23rd Oct 2025146 AMAQI
12°C9/15°C
23rd Oct 2025147 AMAQI
23rd Oct 2025148 AMAQI
23rd Oct 2025179 AMAQI
23rd Oct 20252010 AMAQI
23rd Oct 20251811 AMAQI
23rd Oct 20251712 PMAQI
23rd Oct 2025201 PMAQI
23rd Oct 2025222 PMAQI
23rd Oct 2025223 PMAQI
23rd Oct 2025224 PMAQI
23rd Oct 2025305 PMAQI
23rd Oct 2025286 PMAQI
23rd Oct 2025237 PMAQI
23rd Oct 2025228 PMAQI
23rd Oct 2025239 PMAQI
23rd Oct 20252210 PMAQI
23rd Oct 20252311 PMAQI
24th Oct 20252412 AMAQI
24th Oct 2025231 AMAQI
24th Oct 2025222 AMAQI
24th Oct 2025223 AMAQI
24th Oct 2025194 AMAQI
24th Oct 2025225 AMAQI
24th Oct 2025206 AMAQI
9°C7/12°C
24th Oct 2025207 AMAQI
24th Oct 2025208 AMAQI
24th Oct 2025219 AMAQI
24th Oct 20252410 AMAQI
24th Oct 20253011 AMAQI
24th Oct 20253012 PMAQI
24th Oct 2025261 PMAQI
24th Oct 2025262 PMAQI
24th Oct 2025263 PMAQI
24th Oct 2025224 PMAQI
24th Oct 2025245 PMAQI
24th Oct 2025286 PMAQI
24th Oct 2025267 PMAQI
24th Oct 2025268 PMAQI
24th Oct 2025359 PMAQI
24th Oct 20253910 PMAQI
24th Oct 20254011 PMAQI
25th Oct 20253812 AMAQI
25th Oct 2025371 AMAQI
25th Oct 2025352 AMAQI
25th Oct 2025253 AMAQI
25th Oct 2025264 AMAQI
25th Oct 2025345 AMAQI
25th Oct 2025256 AMAQI
9°C6/12°C
25th Oct 2025227 AMAQI
25th Oct 2025228 AMAQI
25th Oct 2025229 AMAQI
25th Oct 20252410 AMAQI
25th Oct 20252611 AMAQI
25th Oct 20252212 PMAQI
25th Oct 2025241 PMAQI
25th Oct 2025262 PMAQI
25th Oct 2025223 PMAQI
25th Oct 2025224 PMAQI
25th Oct 2025215 PMAQI
25th Oct 2025196 PMAQI
25th Oct 2025217 PMAQI
25th Oct 2025278 PMAQI
25th Oct 2025309 PMAQI
25th Oct 20253510 PMAQI
25th Oct 20253511 PMAQI
26th Oct 20253712 AMAQI
26th Oct 2025331 AMAQI
26th Oct 2025302 AMAQI
26th Oct 2025243 AMAQI
26th Oct 2025184 AMAQI
26th Oct 2025185 AMAQI
26th Oct 2025176 AMAQI
9°C6/11°C
26th Oct 2025177 AMAQI
26th Oct 2025178 AMAQI
26th Oct 2025199 AMAQI
26th Oct 20252210 AMAQI
26th Oct 20252211 AMAQI
26th Oct 20252212 PMAQI
26th Oct 2025221 PMAQI
26th Oct 2025222 PMAQI
26th Oct 2025183 PMAQI
26th Oct 2025194 PMAQI
26th Oct 2025205 PMAQI
26th Oct 2025216 PMAQI
26th Oct 2025297 PMAQI
26th Oct 2025348 PMAQI
26th Oct 2025359 PMAQI
26th Oct 20253310 PMAQI
26th Oct 20252911 PMAQI
27th Oct 20252312 AMAQI
27th Oct 2025201 AMAQI
27th Oct 2025182 AMAQI
27th Oct 2025173 AMAQI
27th Oct 2025204 AMAQI
27th Oct 2025225 AMAQI
27th Oct 2025226 AMAQI
8°C5/10°C
27th Oct 2025257 AMAQI
27th Oct 2025288 AMAQI
27th Oct 2025299 AMAQI
27th Oct 20253110 AMAQI
27th Oct 20252811 AMAQI
27th Oct 20252212 PMAQI
27th Oct 2025221 PMAQI
27th Oct 2025222 PMAQI
27th Oct 2025223 PMAQI
27th Oct 2025224 PMAQI
27th Oct 2025255 PMAQI
27th Oct 2025286 PMAQI
27th Oct 2025307 PMAQI
27th Oct 2025358 PMAQI
27th Oct 2025409 PMAQI
27th Oct 20253810 PMAQI
27th Oct 20253711 PMAQI
28th Oct 20253512 AMAQI
28th Oct 2025301 AMAQI
28th Oct 2025212 AMAQI
28th Oct 2025193 AMAQI
28th Oct 2025174 AMAQI
28th Oct 2025175 AMAQI
28th Oct 2025176 AMAQI
11°C10/13°C
28th Oct 2025177 AMAQI
28th Oct 2025178 AMAQI
28th Oct 2025179 AMAQI
28th Oct 20252010 AMAQI
28th Oct 20252211 AMAQI
28th Oct 20252412 PMAQI
28th Oct 2025261 PMAQI
28th Oct 2025242 PMAQI
28th Oct 2025243 PMAQI
28th Oct 2025244 PMAQI
28th Oct 2025265 PMAQI
28th Oct 2025286 PMAQI
28th Oct 2025327 PMAQI
28th Oct 2025368 PMAQI
28th Oct 2025489 PMAQI
28th Oct 20255910 PMAQI
28th Oct 20255711 PMAQI
29th Oct 20255312 AMAQI
29th Oct 2025451 AMAQI
29th Oct 2025342 AMAQI
29th Oct 2025243 AMAQI
29th Oct 2025204 AMAQI
29th Oct 2025175 AMAQI
29th Oct 2025176 AMAQI
12°C10/14°C
29th Oct 2025227 AMAQI
29th Oct 2025308 AMAQI
29th Oct 2025289 AMAQI
29th Oct 20252710 AMAQI
29th Oct 20252611 AMAQI
29th Oct 20252612 PMAQI
29th Oct 2025261 PMAQI
29th Oct 2025242 PMAQI
29th Oct 2025303 PMAQI
29th Oct 2025334 PMAQI
29th Oct 2025295 PMAQI
29th Oct 2025266 PMAQI
29th Oct 2025377 PMAQI
29th Oct 2025488 PMAQI
29th Oct 2025539 PMAQI
29th Oct 20255610 PMAQI
29th Oct 20255411 PMAQI
30th Oct 20254812 AMAQI
30th Oct 2025401 AMAQI
30th Oct 2025322 AMAQI
30th Oct 2025303 AMAQI
30th Oct 2025274 AMAQI
30th Oct 2025235 AMAQI
30th Oct 2025226 AMAQI
10°C7/12°C
30th Oct 2025227 AMAQI
30th Oct 2025248 AMAQI
30th Oct 2025289 AMAQI
30th Oct 20253010 AMAQI
30th Oct 20253411 AMAQI
30th Oct 20253512 PMAQI
30th Oct 2025331 PMAQI
30th Oct 2025322 PMAQI
30th Oct 2025303 PMAQI
30th Oct 2025284 PMAQI
30th Oct 2025285 PMAQI
30th Oct 2025306 PMAQI
30th Oct 2025357 PMAQI
30th Oct 2025448 PMAQI
30th Oct 2025509 PMAQI
30th Oct 20254410 PMAQI
30th Oct 20254011 PMAQI
31st Oct 20253312 AMAQI
31st Oct 2025291 AMAQI
31st Oct 2025262 AMAQI
31st Oct 2025223 AMAQI
31st Oct 2025204 AMAQI
31st Oct 2025205 AMAQI
31st Oct 2025226 AMAQI
10°C6/12°C
31st Oct 2025227 AMAQI
31st Oct 2025248 AMAQI
31st Oct 2025249 AMAQI
31st Oct 20252810 AMAQI
31st Oct 20252811 AMAQI
31st Oct 20252812 PMAQI
31st Oct 2025281 PMAQI
31st Oct 2025262 PMAQI
31st Oct 2025223 PMAQI
31st Oct 2025264 PMAQI
31st Oct 2025285 PMAQI
31st Oct 2025266 PMAQI
31st Oct 2025277 PMAQI
31st Oct 2025288 PMAQI
31st Oct 2025269 PMAQI
31st Oct 20252810 PMAQI
31st Oct 20252811 PMAQI
1st Nov 20252512 AMAQI
1st Nov 2025201 AMAQI
1st Nov 2025262 AMAQI
1st Nov 2025223 AMAQI
1st Nov 2025204 AMAQI
1st Nov 2025235 AMAQI
1st Nov 2025206 AMAQI
14°C12/16°C
1st Nov 2025177 AMAQI
1st Nov 2025178 AMAQI
1st Nov 2025209 AMAQI
1st Nov 20252210 AMAQI
1st Nov 20252411 AMAQI
1st Nov 20252812 PMAQI
1st Nov 2025261 PMAQI
1st Nov 2025252 PMAQI
1st Nov 2025303 PMAQI
1st Nov 2025294 PMAQI
1st Nov 2025245 PMAQI
1st Nov 2025286 PMAQI
1st Nov 2025287 PMAQI
1st Nov 2025318 PMAQI
1st Nov 2025359 PMAQI
1st Nov 20254410 PMAQI
1st Nov 20254911 PMAQI
2nd Nov 20255412 AMAQI
2nd Nov 2025561 AMAQI
2nd Nov 2025472 AMAQI
2nd Nov 2025353 AMAQI
2nd Nov 2025264 AMAQI
2nd Nov 2025225 AMAQI
2nd Nov 2025246 AMAQI
12°C8/14°C
2nd Nov 2025207 AMAQI
2nd Nov 2025258 AMAQI
2nd Nov 2025269 AMAQI
2nd Nov 20251810 AMAQI
2nd Nov 20252011 AMAQI
2nd Nov 20251812 PMAQI
2nd Nov 2025191 PMAQI
2nd Nov 2025222 PMAQI
2nd Nov 2025223 PMAQI
2nd Nov 2025254 PMAQI
2nd Nov 2025285 PMAQI
2nd Nov 2025286 PMAQI
2nd Nov 2025297 PMAQI
2nd Nov 2025378 PMAQI
2nd Nov 2025519 PMAQI
2nd Nov 20255710 PMAQI
2nd Nov 20255611 PMAQI
3rd Nov 20255312 AMAQI
3rd Nov 2025441 AMAQI
3rd Nov 2025372 AMAQI
3rd Nov 2025333 AMAQI
3rd Nov 2025264 AMAQI
3rd Nov 2025225 AMAQI
3rd Nov 2025226 AMAQI
9°C8/12°C
3rd Nov 2025227 AMAQI
3rd Nov 2025228 AMAQI
3rd Nov 2025299 AMAQI
3rd Nov 20253010 AMAQI
3rd Nov 20252211 AMAQI
3rd Nov 20252512 PMAQI
3rd Nov 2025281 PMAQI
3rd Nov 2025252 PMAQI
3rd Nov 2025243 PMAQI
3rd Nov 2025284 PMAQI
3rd Nov 2025265 PMAQI
3rd Nov 2025246 PMAQI
3rd Nov 2025327 PMAQI
3rd Nov 2025368 PMAQI
3rd Nov 2025309 PMAQI
3rd Nov 20252810 PMAQI
3rd Nov 20253011 PMAQI
4th Nov 20252812 AMAQI
4th Nov 2025261 AMAQI
4th Nov 2025222 AMAQI
4th Nov 2025193 AMAQI
4th Nov 2025194 AMAQI
4th Nov 2025225 AMAQI
4th Nov 2025226 AMAQI
13°C8/16°C
4th Nov 2025227 AMAQI
4th Nov 2025228 AMAQI
4th Nov 2025249 AMAQI
4th Nov 20253010 AMAQI
4th Nov 20253311 AMAQI
4th Nov 20253312 PMAQI
4th Nov 2025311 PMAQI
4th Nov 2025282 PMAQI
4th Nov 2025263 PMAQI
4th Nov 2025244 PMAQI
4th Nov 2025295 PMAQI
4th Nov 2025356 PMAQI
4th Nov 2025387 PMAQI
4th Nov 2025358 PMAQI
4th Nov 2025339 PMAQI
4th Nov 20253710 PMAQI
4th Nov 20253911 PMAQI
5th Nov 20253912 AMAQI
5th Nov 2025341 AMAQI
5th Nov 2025282 AMAQI
5th Nov 2025283 AMAQI
5th Nov 2025284 AMAQI
5th Nov 2025285 AMAQI
5th Nov 2025286 AMAQI
14°C13/15°C
5th Nov 2025287 AMAQI
7 AM5th Nov 2025248 AMAQI
5th Nov 2025229 AMAQI
5th Nov 20252610 AMAQI
5th Nov 20252611 AMAQI
5th Nov 20252712 PMAQI
12 PM5th Nov 2025261 PMAQI
5th Nov 2025332 PMAQI
5th Nov 2025353 PMAQI
5th Nov 2025344 PMAQI
5th Nov 2025335 PMAQI
5 PM5th Nov 2025406 PMAQI
5th Nov 2025437 PMAQI
5th Nov 2025488 PMAQI
12 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
9 AM - 5 PM
38AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
7 AM - 8 AM
36AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 5 PM (Avg. 38), while the lowest AQI was between 7 AM to 8 AM (Avg. 36).
Night time
Avg. Highest Time
10 PM - 11 PM
55AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
6 AM
36AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 55), while the lowest AQI was between 6 AM to 6 AM (Avg. 36).
2025 Days Vs Air Quality
Stanmore, Harrow, United Kingdom
2025
73%
226
26%
81
0.3%
1
Total number of days with different AQI categories in last 309 days in 2025 (56 days remaining)
Good
226 DaysModerate
81 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 73%
Health Risk Level:
Low
In 2025, 73% of 309 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 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
28AQI
28AQI
2nd January 2025
34AQI
34AQI
3rd January 2025
44AQI
44AQI
4th January 2025
54AQI
54AQI
5th January 2025
31AQI
31AQI
6th January 2025
23AQI
23AQI
7th January 2025
25AQI
25AQI
8th January 2025
37AQI
37AQI
9th January 2025
51AQI
51AQI
10th January 2025
63AQI
63AQI
11th January 2025
89AQI
89AQI
12th January 2025
89AQI
89AQI
13th January 2025
56AQI
56AQI
14th January 2025
54AQI
54AQI
15th January 2025
56AQI
56AQI
16th January 2025
53AQI
53AQI
17th January 2025
58AQI
58AQI
18th January 2025
76AQI
76AQI
19th January 2025
69AQI
69AQI
20th January 2025
66AQI
66AQI
21st January 2025
69AQI
69AQI
22nd January 2025
78AQI
78AQI
23rd January 2025
57AQI
57AQI
24th January 2025
46AQI
46AQI
25th January 2025
38AQI
38AQI
26th January 2025
33AQI
33AQI
27th January 2025
27AQI
27AQI
28th January 2025
26AQI
26AQI
29th January 2025
28AQI
28AQI
30th January 2025
30AQI
30AQI
31st January 2025
35AQI
35AQI
1st February 2025
40AQI
40AQI
2nd February 2025
57AQI
57AQI
3rd February 2025
60AQI
60AQI
4th February 2025
39AQI
39AQI
5th February 2025
48AQI
48AQI
6th February 2025
51AQI
51AQI
7th February 2025
46AQI
46AQI
8th February 2025
65AQI
65AQI
9th February 2025
71AQI
71AQI
10th February 2025
80AQI
80AQI
11th February 2025
76AQI
76AQI
12th February 2025
70AQI
70AQI
13th February 2025
69AQI
69AQI
14th February 2025
66AQI
66AQI
15th February 2025
80AQI
80AQI
16th February 2025
70AQI
70AQI
17th February 2025
64AQI
64AQI
18th February 2025
74AQI
74AQI
19th February 2025
83AQI
83AQI
20th February 2025
45AQI
45AQI
21st February 2025
36AQI
36AQI
22nd February 2025
43AQI
43AQI
23rd February 2025
33AQI
33AQI
24th February 2025
27AQI
27AQI
25th February 2025
35AQI
35AQI
26th February 2025
28AQI
28AQI
27th February 2025
31AQI
31AQI
28th February 2025
50AQI
50AQI
1st March 2025
52AQI
52AQI
2nd March 2025
59AQI
59AQI
3rd March 2025
65AQI
65AQI
4th March 2025
66AQI
66AQI
5th March 2025
80AQI
80AQI
6th March 2025
79AQI
79AQI
7th March 2025
56AQI
56AQI
8th March 2025
63AQI
63AQI
9th March 2025
84AQI
84AQI
10th March 2025
126AQI
126AQI
11th March 2025
59AQI
59AQI
12th March 2025
48AQI
48AQI
13th March 2025
42AQI
42AQI
14th March 2025
52AQI
52AQI
15th March 2025
38AQI
38AQI
16th March 2025
42AQI
42AQI
17th March 2025
46AQI
46AQI
18th March 2025
53AQI
53AQI
19th March 2025
70AQI
70AQI
20th March 2025
65AQI
65AQI
21st March 2025
74AQI
74AQI
22nd March 2025
55AQI
55AQI
23rd March 2025
80AQI
80AQI
24th March 2025
88AQI
88AQI
25th March 2025
80AQI
80AQI
26th March 2025
58AQI
58AQI
27th March 2025
49AQI
49AQI
28th March 2025
33AQI
33AQI
29th March 2025
32AQI
32AQI
30th March 2025
34AQI
34AQI
31st March 2025
38AQI
38AQI
1st April 2025
38AQI
38AQI
2nd April 2025
41AQI
41AQI
3rd April 2025
56AQI
56AQI
4th April 2025
64AQI
64AQI
5th April 2025
40AQI
40AQI
6th April 2025
29AQI
29AQI
7th April 2025
32AQI
32AQI
8th April 2025
46AQI
46AQI
9th April 2025
40AQI
40AQI
10th April 2025
42AQI
42AQI
11th April 2025
59AQI
59AQI
12th April 2025
63AQI
63AQI
13th April 2025
49AQI
49AQI
14th April 2025
32AQI
32AQI
15th April 2025
45AQI
45AQI
16th April 2025
26AQI
26AQI
17th April 2025
31AQI
31AQI
18th April 2025
36AQI
36AQI
19th April 2025
43AQI
43AQI
20th April 2025
29AQI
29AQI
21st April 2025
41AQI
41AQI
22nd April 2025
28AQI
28AQI
23rd April 2025
23AQI
23AQI
24th April 2025
43AQI
43AQI
25th April 2025
44AQI
44AQI
26th April 2025
57AQI
57AQI
27th April 2025
66AQI
66AQI
28th April 2025
47AQI
47AQI
29th April 2025
54AQI
54AQI
30th April 2025
54AQI
54AQI
1st May 2025
59AQI
59AQI
2nd May 2025
54AQI
54AQI
3rd May 2025
50AQI
50AQI
4th May 2025
25AQI
25AQI
5th May 2025
22AQI
22AQI
6th May 2025
26AQI
26AQI
7th May 2025
35AQI
35AQI
8th May 2025
22AQI
22AQI
9th May 2025
31AQI
31AQI
10th May 2025
29AQI
29AQI
11th May 2025
33AQI
33AQI
12th May 2025
36AQI
36AQI
13th May 2025
38AQI
38AQI
14th May 2025
36AQI
36AQI
15th May 2025
35AQI
35AQI
16th May 2025
40AQI
40AQI
17th May 2025
36AQI
36AQI
18th May 2025
45AQI
45AQI
19th May 2025
37AQI
37AQI
20th May 2025
32AQI
32AQI
21st May 2025
38AQI
38AQI
22nd May 2025
31AQI
31AQI
23rd May 2025
30AQI
30AQI
24th May 2025
26AQI
26AQI
25th May 2025
19AQI
19AQI
26th May 2025
22AQI
22AQI
27th May 2025
20AQI
20AQI
28th May 2025
17AQI
17AQI
29th May 2025
21AQI
21AQI
30th May 2025
20AQI
20AQI
31st May 2025
22AQI
22AQI
1st June 2025
24AQI
24AQI
2nd June 2025
21AQI
21AQI
3rd June 2025
23AQI
23AQI
4th June 2025
22AQI
22AQI
5th June 2025
19AQI
19AQI
6th June 2025
16AQI
16AQI
7th June 2025
15AQI
15AQI
8th June 2025
20AQI
20AQI
9th June 2025
57AQI
57AQI
10th June 2025
39AQI
39AQI
11th June 2025
36AQI
36AQI
12th June 2025
46AQI
46AQI
13th June 2025
37AQI
37AQI
14th June 2025
36AQI
36AQI
15th June 2025
27AQI
27AQI
16th June 2025
26AQI
26AQI
17th June 2025
30AQI
30AQI
18th June 2025
32AQI
32AQI
19th June 2025
40AQI
40AQI
20th June 2025
47AQI
47AQI
21st June 2025
47AQI
47AQI
22nd June 2025
50AQI
50AQI
23rd June 2025
22AQI
22AQI
24th June 2025
22AQI
22AQI
25th June 2025
18AQI
18AQI
26th June 2025
18AQI
18AQI
27th June 2025
21AQI
21AQI
28th June 2025
17AQI
17AQI
29th June 2025
18AQI
18AQI
30th June 2025
23AQI
23AQI
1st July 2025
33AQI
33AQI
2nd July 2025
32AQI
32AQI
3rd July 2025
19AQI
19AQI
4th July 2025
19AQI
19AQI
5th July 2025
19AQI
19AQI
6th July 2025
17AQI
17AQI
7th July 2025
18AQI
18AQI
8th July 2025
21AQI
21AQI
9th July 2025
23AQI
23AQI
10th July 2025
21AQI
21AQI
11th July 2025
25AQI
25AQI
12th July 2025
30AQI
30AQI
13th July 2025
30AQI
30AQI
14th July 2025
33AQI
33AQI
15th July 2025
24AQI
24AQI
16th July 2025
22AQI
22AQI
17th July 2025
22AQI
22AQI
18th July 2025
23AQI
23AQI
19th July 2025
24AQI
24AQI
20th July 2025
22AQI
22AQI
21st July 2025
19AQI
19AQI
22nd July 2025
18AQI
18AQI
23rd July 2025
33AQI
33AQI
24th July 2025
45AQI
45AQI
25th July 2025
38AQI
38AQI
26th July 2025
37AQI
37AQI
27th July 2025
26AQI
26AQI
28th July 2025
28AQI
28AQI
29th July 2025
25AQI
25AQI
30th July 2025
29AQI
29AQI
31st July 2025
23AQI
23AQI
1st August 2025
22AQI
22AQI
2nd August 2025
21AQI
21AQI
3rd August 2025
26AQI
26AQI
4th August 2025
24AQI
24AQI
5th August 2025
25AQI
25AQI
6th August 2025
30AQI
30AQI
7th August 2025
30AQI
30AQI
8th August 2025
32AQI
32AQI
9th August 2025
25AQI
25AQI
10th August 2025
47AQI
47AQI
11th August 2025
52AQI
52AQI
12th August 2025
53AQI
53AQI
13th August 2025
59AQI
59AQI
14th August 2025
52AQI
52AQI
15th August 2025
41AQI
41AQI
16th August 2025
45AQI
45AQI
17th August 2025
36AQI
36AQI
18th August 2025
31AQI
31AQI
19th August 2025
32AQI
32AQI
20th August 2025
32AQI
32AQI
21st August 2025
29AQI
29AQI
22nd August 2025
27AQI
27AQI
23rd August 2025
26AQI
26AQI
24th August 2025
31AQI
31AQI
25th August 2025
32AQI
32AQI
26th August 2025
33AQI
33AQI
27th August 2025
30AQI
30AQI
28th August 2025
28AQI
28AQI
29th August 2025
23AQI
23AQI
30th August 2025
22AQI
22AQI
31st August 2025
24AQI
24AQI
1st September 2025
24AQI
24AQI
2nd September 2025
22AQI
22AQI
3rd September 2025
21AQI
21AQI
4th September 2025
21AQI
21AQI
5th September 2025
23AQI
23AQI
6th September 2025
25AQI
25AQI
7th September 2025
26AQI
26AQI
8th September 2025
24AQI
24AQI
9th September 2025
27AQI
27AQI
10th September 2025
24AQI
24AQI
11th September 2025
23AQI
23AQI
12th September 2025
20AQI
20AQI
13th September 2025
19AQI
19AQI
14th September 2025
20AQI
20AQI
15th September 2025
27AQI
27AQI
16th September 2025
23AQI
23AQI
17th September 2025
20AQI
20AQI
18th September 2025
15AQI
15AQI
19th September 2025
22AQI
22AQI
20th September 2025
32AQI
32AQI
21st September 2025
17AQI
17AQI
22nd September 2025
19AQI
19AQI
23rd September 2025
21AQI
21AQI
24th September 2025
18AQI
18AQI
25th September 2025
20AQI
20AQI
26th September 2025
29AQI
29AQI
27th September 2025
44AQI
44AQI
28th September 2025
48AQI
48AQI
29th September 2025
61AQI
61AQI
30th September 2025
51AQI
51AQI
1st October 2025
61AQI
61AQI
2nd October 2025
67AQI
67AQI
3rd October 2025
48AQI
48AQI
4th October 2025
29AQI
29AQI
5th October 2025
25AQI
25AQI
6th October 2025
45AQI
45AQI
7th October 2025
48AQI
48AQI
8th October 2025
54AQI
54AQI
9th October 2025
59AQI
59AQI
10th October 2025
64AQI
64AQI
11th October 2025
72AQI
72AQI
12th October 2025
89AQI
89AQI
13th October 2025
56AQI
56AQI
14th October 2025
39AQI
39AQI
15th October 2025
47AQI
47AQI
16th October 2025
51AQI
51AQI
17th October 2025
56AQI
56AQI
18th October 2025
61AQI
61AQI
19th October 2025
62AQI
62AQI
20th October 2025
38AQI
38AQI
21st October 2025
58AQI
58AQI
22nd October 2025
49AQI
49AQI
23rd October 2025
28AQI
28AQI
24th October 2025
25AQI
25AQI
25th October 2025
29AQI
29AQI
26th October 2025
27AQI
27AQI
27th October 2025
26AQI
26AQI
28th October 2025
30AQI
30AQI
29th October 2025
37AQI
37AQI
30th October 2025
36AQI
36AQI
31st October 2025
28AQI
28AQI
1st November 2025
28AQI
28AQI
2nd November 2025
36AQI
36AQI
3rd November 2025
34AQI
34AQI
4th November 2025
29AQI
29AQI
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
49AQI
55AQI
60AQI
43AQI
32AQI
29AQI
26AQI
33AQI
26AQI
47AQI
32AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202540AQI
15
16
13
15
10
20
1
22
8
29
2
29
1
31
27
4
28
2
18
13
4
226
81
1
Highest AQI recorded in
March60AQI
Lowest AQI recorded in
July26AQI
202435AQI
13
3
1
1
1
1
12
30
31
30
1
22
7
26
5
21
9
31
219
25
1
Highest AQI recorded in
March67AQI
Lowest AQI recorded in
April4AQI
202339AQI
21
10
17
8
1
25
1
14
14
29
2
22
8
30
1
14
2
1
28
3
202
48
1
Highest AQI recorded in
February49AQI
Lowest AQI recorded in
August28AQI
202243AQI
30
1
21
29
2
22
8
25
6
27
3
21
3
1
12
1
23
8
25
5
16
15
252
52
Highest AQI recorded in
December51AQI
Lowest AQI recorded in
August22AQI
202143AQI
23
7
23
5
19
10
2
26
4
26
5
23
7
24
7
31
23
6
1
31
30
31
310
51
3
Highest AQI recorded in
September54AQI
Lowest AQI recorded in
April33AQI
202038AQI
9
4
13
5
3
18
25
5
28
1
20
9
1
26
4
30
1
19
8
3
25
5
1
213
42
8
Highest AQI recorded in
April55AQI
Lowest AQI recorded in
July25AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
43AQILeast Polluted Year Recorded
2024(Avg.)
35AQIStanmore's annual 2025 AQI (40) shows an average percentage change of 1.2% (worsened AQI) compared to previous years: 2020 (38), 2021 (43), 2022 (43), 2023 (39), 2024 (35).
