Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Newmarket, Ontario, Canada 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+

August Air Quality Analysis

Newmarket, Ontario, Canada

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
16th Aug 2023
102AQI
Lowest AQI recorded on
31st Aug 2022
17AQI

Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 55 of Moderate air quality, showing improvement over 2024 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025

Newmarket, Ontario, Canada

AQI
Day
Night
.

5 AM1st Aug 2025

8 PM

4 AM2nd Aug 2025

Day time
Avg. Highest Time
6AM1st Aug

59AQI

Avg. Lowest Time
7PM1st Aug

28AQI

Night time
Avg. Highest Time
5AM1st Aug

71AQI

Avg. Lowest Time
12AM2nd Aug

31AQI

In the last 24 hours,

Newmarket's AQI reached its highest point of 71 at 5 AM during the Night, while the lowest point, 28, was recorded at 7 PM during the Day between 1st Aug and 2nd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Newmarket, Ontario, Canada

JulAug
03rd - 04th04th - 05th05th - 06th06th - 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
Day
Night
3rd Jul 2025485 AMAQI
3rd Jul 2025586 AMAQI
3rd Jul 2025587 AMAQI
3rd Jul 2025588 AMAQI
3rd Jul 2025539 AMAQI
3rd Jul 20255410 AMAQI
3rd Jul 20255411 AMAQI
3rd Jul 20255512 PMAQI
3rd Jul 2025551 PMAQI
3rd Jul 2025552 PMAQI
3rd Jul 2025543 PMAQI
3rd Jul 2025544 PMAQI
3rd Jul 2025545 PMAQI
3rd Jul 2025526 PMAQI
3rd Jul 2025507 PMAQI
3rd Jul 2025498 PMAQI
3rd Jul 2025519 PMAQI
3rd Jul 20255210 PMAQI
3rd Jul 20254711 PMAQI
4th Jul 20254712 AMAQI
4th Jul 2025451 AMAQI
4th Jul 2025302 AMAQI
4th Jul 2025323 AMAQI
4th Jul 2025344 AMAQI

--°C/°C

4th Jul 2025365 AMAQI
4th Jul 2025386 AMAQI
4th Jul 2025347 AMAQI
4th Jul 2025368 AMAQI
4th Jul 2025369 AMAQI
4th Jul 20253710 AMAQI
4th Jul 20253811 AMAQI
4th Jul 20253512 PMAQI
4th Jul 2025361 PMAQI
4th Jul 2025352 PMAQI
4th Jul 2025353 PMAQI
4th Jul 2025344 PMAQI
4th Jul 2025365 PMAQI
4th Jul 2025356 PMAQI
4th Jul 2025347 PMAQI
4th Jul 2025358 PMAQI
4th Jul 2025369 PMAQI
4th Jul 20253710 PMAQI
4th Jul 20254111 PMAQI
5th Jul 20254112 AMAQI
5th Jul 2025461 AMAQI
5th Jul 2025462 AMAQI
5th Jul 2025493 AMAQI
5th Jul 2025484 AMAQI

19°C10/26°C

5th Jul 2025465 AMAQI
5th Jul 2025446 AMAQI
5th Jul 2025467 AMAQI
5th Jul 2025458 AMAQI
5th Jul 2025469 AMAQI
5th Jul 20255010 AMAQI
5th Jul 20255211 AMAQI
5th Jul 20255312 PMAQI
5th Jul 2025531 PMAQI
5th Jul 2025522 PMAQI
5th Jul 2025523 PMAQI
5th Jul 2025514 PMAQI
5th Jul 2025505 PMAQI
5th Jul 2025516 PMAQI
5th Jul 2025527 PMAQI
5th Jul 2025528 PMAQI
5th Jul 2025539 PMAQI
5th Jul 20255210 PMAQI
5th Jul 20255211 PMAQI
6th Jul 20255212 AMAQI
6th Jul 2025521 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025533 AMAQI
6th Jul 2025544 AMAQI

24°C15/33°C

6th Jul 2025545 AMAQI
6th Jul 2025556 AMAQI
6th Jul 2025567 AMAQI
6th Jul 2025568 AMAQI
6th Jul 2025579 AMAQI
6th Jul 20255610 AMAQI
6th Jul 20255611 AMAQI
6th Jul 20255612 PMAQI
6th Jul 2025551 PMAQI
6th Jul 2025542 PMAQI
6th Jul 2025553 PMAQI
6th Jul 2025544 PMAQI
6th Jul 2025565 PMAQI
6th Jul 2025556 PMAQI
6th Jul 2025547 PMAQI
6th Jul 2025558 PMAQI
6th Jul 2025559 PMAQI
6th Jul 20255510 PMAQI
6th Jul 20255411 PMAQI
7th Jul 20255412 AMAQI
7th Jul 2025571 AMAQI
7th Jul 2025582 AMAQI
7th Jul 2025583 AMAQI
7th Jul 2025574 AMAQI

27°C21/34°C

7th Jul 2025595 AMAQI
7th Jul 2025586 AMAQI
7th Jul 2025567 AMAQI
7th Jul 2025568 AMAQI
7th Jul 2025559 AMAQI
7th Jul 20255410 AMAQI
7th Jul 20255211 AMAQI
7th Jul 20255112 PMAQI
7th Jul 2025511 PMAQI
7th Jul 2025462 PMAQI
7th Jul 2025433 PMAQI
7th Jul 2025464 PMAQI
7th Jul 2025475 PMAQI
7th Jul 2025456 PMAQI
7th Jul 2025447 PMAQI
7th Jul 2025478 PMAQI
7th Jul 2025529 PMAQI
7th Jul 20255010 PMAQI
7th Jul 20254411 PMAQI
8th Jul 20254312 AMAQI
8th Jul 2025481 AMAQI
8th Jul 2025422 AMAQI
8th Jul 2025363 AMAQI
8th Jul 2025374 AMAQI

21°C17/23°C

8th Jul 2025395 AMAQI
8th Jul 2025396 AMAQI
8th Jul 2025387 AMAQI
8th Jul 2025408 AMAQI
8th Jul 2025379 AMAQI
8th Jul 20254110 AMAQI
8th Jul 20253811 AMAQI
8th Jul 20253812 PMAQI
8th Jul 2025391 PMAQI
8th Jul 2025392 PMAQI
8th Jul 2025393 PMAQI
8th Jul 2025384 PMAQI
8th Jul 2025375 PMAQI
8th Jul 2025376 PMAQI
8th Jul 2025357 PMAQI
8th Jul 2025358 PMAQI
8th Jul 2025369 PMAQI
8th Jul 20253710 PMAQI
8th Jul 20254511 PMAQI
9th Jul 20254612 AMAQI
9th Jul 2025431 AMAQI
9th Jul 2025462 AMAQI
9th Jul 2025443 AMAQI
9th Jul 2025424 AMAQI

21°C15/26°C

9th Jul 2025455 AMAQI
9th Jul 2025446 AMAQI
9th Jul 2025457 AMAQI
9th Jul 2025418 AMAQI
9th Jul 2025439 AMAQI
9th Jul 20254810 AMAQI
9th Jul 20255011 AMAQI
9th Jul 20254912 PMAQI
9th Jul 2025521 PMAQI
9th Jul 2025522 PMAQI
9th Jul 2025523 PMAQI
9th Jul 2025534 PMAQI
9th Jul 2025535 PMAQI
9th Jul 2025536 PMAQI
9th Jul 2025567 PMAQI
9th Jul 2025528 PMAQI
9th Jul 2025489 PMAQI
9th Jul 20254410 PMAQI
9th Jul 20254011 PMAQI
10th Jul 20254112 AMAQI
10th Jul 2025401 AMAQI
10th Jul 2025372 AMAQI
10th Jul 2025393 AMAQI
10th Jul 2025384 AMAQI

22°C17/28°C

10th Jul 2025385 AMAQI
10th Jul 2025396 AMAQI
10th Jul 2025387 AMAQI
10th Jul 2025388 AMAQI
10th Jul 2025439 AMAQI
10th Jul 20254610 AMAQI
10th Jul 20254511 AMAQI
10th Jul 20254912 PMAQI
10th Jul 2025521 PMAQI
10th Jul 2025522 PMAQI
10th Jul 2025523 PMAQI
10th Jul 2025524 PMAQI
10th Jul 2025505 PMAQI
10th Jul 2025476 PMAQI
10th Jul 2025487 PMAQI
10th Jul 2025508 PMAQI
10th Jul 2025439 PMAQI
10th Jul 20254410 PMAQI
10th Jul 20254911 PMAQI
11th Jul 20254812 AMAQI
11th Jul 2025491 AMAQI
11th Jul 2025522 AMAQI
11th Jul 2025523 AMAQI
11th Jul 2025524 AMAQI

22°C17/28°C

11th Jul 2025525 AMAQI
11th Jul 2025526 AMAQI
11th Jul 2025527 AMAQI
11th Jul 2025548 AMAQI
11th Jul 2025549 AMAQI
11th Jul 20255310 AMAQI
11th Jul 20255211 AMAQI
11th Jul 20255412 PMAQI
11th Jul 2025541 PMAQI
11th Jul 2025542 PMAQI
11th Jul 2025543 PMAQI
11th Jul 2025534 PMAQI
11th Jul 2025525 PMAQI
11th Jul 2025546 PMAQI
11th Jul 2025547 PMAQI
11th Jul 2025558 PMAQI
11th Jul 2025549 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255211 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025521 AMAQI
12th Jul 2025542 AMAQI
12th Jul 2025553 AMAQI
12th Jul 2025554 AMAQI

22°C14/31°C

12th Jul 2025545 AMAQI
12th Jul 2025546 AMAQI
12th Jul 2025527 AMAQI
12th Jul 2025508 AMAQI
12th Jul 2025529 AMAQI
12th Jul 20255410 AMAQI
12th Jul 20255211 AMAQI
12th Jul 20255212 PMAQI
12th Jul 2025501 PMAQI
12th Jul 2025502 PMAQI
12th Jul 2025513 PMAQI
12th Jul 2025524 PMAQI
12th Jul 2025545 PMAQI
12th Jul 2025576 PMAQI
12th Jul 2025537 PMAQI
12th Jul 2025538 PMAQI
12th Jul 2025519 PMAQI
12th Jul 20255110 PMAQI
12th Jul 20255111 PMAQI
13th Jul 20255012 AMAQI
13th Jul 2025521 AMAQI
13th Jul 2025472 AMAQI
13th Jul 2025483 AMAQI
13th Jul 2025504 AMAQI

26°C20/33°C

13th Jul 2025505 AMAQI
13th Jul 2025506 AMAQI
13th Jul 2025507 AMAQI
13th Jul 2025498 AMAQI
13th Jul 2025519 AMAQI
13th Jul 20255110 AMAQI
13th Jul 20255111 AMAQI
13th Jul 20254612 PMAQI
13th Jul 2025461 PMAQI
13th Jul 2025442 PMAQI
13th Jul 2025433 PMAQI
13th Jul 2025434 PMAQI
13th Jul 2025465 PMAQI
13th Jul 2025486 PMAQI
13th Jul 2025527 PMAQI
13th Jul 2025548 PMAQI
13th Jul 2025519 PMAQI
13th Jul 20255110 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255012 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025572 AMAQI
14th Jul 2025543 AMAQI
14th Jul 2025524 AMAQI

25°C20/28°C

14th Jul 2025485 AMAQI
14th Jul 2025466 AMAQI
14th Jul 2025517 AMAQI
14th Jul 2025518 AMAQI
14th Jul 2025539 AMAQI
14th Jul 20255210 AMAQI
14th Jul 20255211 AMAQI
14th Jul 20255212 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025522 PMAQI
14th Jul 2025523 PMAQI
14th Jul 2025524 PMAQI
14th Jul 2025525 PMAQI
14th Jul 2025526 PMAQI
14th Jul 2025527 PMAQI
14th Jul 2025528 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255210 PMAQI
14th Jul 20255211 PMAQI
15th Jul 20255112 AMAQI
15th Jul 2025501 AMAQI
15th Jul 2025542 AMAQI
15th Jul 2025583 AMAQI
15th Jul 2025564 AMAQI

24°C16/32°C

15th Jul 2025605 AMAQI
15th Jul 2025666 AMAQI
15th Jul 2025687 AMAQI
15th Jul 2025688 AMAQI
15th Jul 2025599 AMAQI
15th Jul 20256010 AMAQI
15th Jul 20256011 AMAQI
15th Jul 20255912 PMAQI
15th Jul 2025601 PMAQI
15th Jul 2025612 PMAQI
15th Jul 2025613 PMAQI
15th Jul 2025594 PMAQI
15th Jul 2025615 PMAQI
15th Jul 2025616 PMAQI
15th Jul 2025617 PMAQI
15th Jul 2025618 PMAQI
15th Jul 2025589 PMAQI
15th Jul 20256010 PMAQI
15th Jul 20256011 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025631 AMAQI
16th Jul 2025712 AMAQI
16th Jul 2025663 AMAQI
16th Jul 2025704 AMAQI

25°C16/33°C

16th Jul 2025705 AMAQI
16th Jul 2025666 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025688 AMAQI
16th Jul 2025679 AMAQI
16th Jul 20256910 AMAQI
16th Jul 20256811 AMAQI
16th Jul 20256612 PMAQI
16th Jul 2025651 PMAQI
16th Jul 2025672 PMAQI
16th Jul 2025673 PMAQI
16th Jul 2025674 PMAQI
16th Jul 2025695 PMAQI
16th Jul 2025696 PMAQI
16th Jul 2025687 PMAQI
16th Jul 2025708 PMAQI
16th Jul 2025679 PMAQI
16th Jul 20256510 PMAQI
16th Jul 20256311 PMAQI
17th Jul 20256312 AMAQI
17th Jul 2025631 AMAQI
17th Jul 2025602 AMAQI
17th Jul 2025553 AMAQI
17th Jul 2025534 AMAQI

25°C17/34°C

17th Jul 2025535 AMAQI
17th Jul 2025526 AMAQI
17th Jul 2025507 AMAQI
17th Jul 2025488 AMAQI
17th Jul 2025519 AMAQI
17th Jul 20255010 AMAQI
17th Jul 20254911 AMAQI
17th Jul 20255112 PMAQI
17th Jul 2025541 PMAQI
17th Jul 2025522 PMAQI
17th Jul 2025443 PMAQI
17th Jul 2025454 PMAQI
17th Jul 2025405 PMAQI
17th Jul 2025426 PMAQI
17th Jul 2025427 PMAQI
17th Jul 2025428 PMAQI
17th Jul 2025479 PMAQI
17th Jul 20254710 PMAQI
17th Jul 20253711 PMAQI
18th Jul 20253912 AMAQI
18th Jul 2025341 AMAQI
18th Jul 2025242 AMAQI
18th Jul 2025243 AMAQI
18th Jul 2025234 AMAQI

22°C17/27°C

18th Jul 2025245 AMAQI
18th Jul 2025246 AMAQI
18th Jul 2025237 AMAQI
18th Jul 2025248 AMAQI
18th Jul 2025239 AMAQI
18th Jul 20252410 AMAQI
18th Jul 20252311 AMAQI
18th Jul 20252312 PMAQI
18th Jul 2025231 PMAQI
18th Jul 2025232 PMAQI
18th Jul 2025233 PMAQI
18th Jul 2025244 PMAQI
18th Jul 2025245 PMAQI
18th Jul 2025286 PMAQI
18th Jul 2025327 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025249 PMAQI
18th Jul 20252410 PMAQI
18th Jul 20253011 PMAQI
19th Jul 20253112 AMAQI
19th Jul 2025311 AMAQI
19th Jul 2025382 AMAQI
19th Jul 2025333 AMAQI
19th Jul 2025324 AMAQI

18°C10/24°C

19th Jul 2025315 AMAQI
19th Jul 2025306 AMAQI
19th Jul 2025307 AMAQI
19th Jul 2025318 AMAQI
19th Jul 2025339 AMAQI
19th Jul 20253410 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20253012 PMAQI
19th Jul 2025301 PMAQI
19th Jul 2025302 PMAQI
19th Jul 2025323 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025305 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025317 PMAQI
19th Jul 2025308 PMAQI
19th Jul 2025319 PMAQI
19th Jul 20253210 PMAQI
19th Jul 20253111 PMAQI
20th Jul 20253212 AMAQI
20th Jul 2025311 AMAQI
20th Jul 2025282 AMAQI
20th Jul 2025283 AMAQI
20th Jul 2025284 AMAQI

20°C12/27°C

20th Jul 2025295 AMAQI
20th Jul 2025306 AMAQI
20th Jul 2025317 AMAQI
20th Jul 2025308 AMAQI
20th Jul 2025299 AMAQI
20th Jul 20252810 AMAQI
20th Jul 20252911 AMAQI
20th Jul 20253112 PMAQI
20th Jul 2025301 PMAQI
20th Jul 2025302 PMAQI
20th Jul 2025283 PMAQI
20th Jul 2025284 PMAQI
20th Jul 2025275 PMAQI
20th Jul 2025286 PMAQI
20th Jul 2025287 PMAQI
20th Jul 2025298 PMAQI
20th Jul 2025299 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253811 PMAQI
21st Jul 20253812 AMAQI
21st Jul 2025421 AMAQI
21st Jul 2025512 AMAQI
21st Jul 2025503 AMAQI
21st Jul 2025584 AMAQI

20°C16/27°C

21st Jul 2025605 AMAQI
21st Jul 2025606 AMAQI
21st Jul 2025547 AMAQI
21st Jul 2025468 AMAQI
21st Jul 2025429 AMAQI
21st Jul 20253810 AMAQI
21st Jul 20253511 AMAQI
21st Jul 20253212 PMAQI
21st Jul 2025341 PMAQI
21st Jul 2025322 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025324 PMAQI
21st Jul 2025335 PMAQI
21st Jul 2025346 PMAQI
21st Jul 2025327 PMAQI
21st Jul 2025348 PMAQI
21st Jul 2025369 PMAQI
21st Jul 20253810 PMAQI
21st Jul 20253411 PMAQI
22nd Jul 20253612 AMAQI
22nd Jul 2025321 AMAQI
22nd Jul 2025232 AMAQI
22nd Jul 2025223 AMAQI
22nd Jul 2025234 AMAQI

17°C12/24°C

22nd Jul 2025225 AMAQI
22nd Jul 2025226 AMAQI
22nd Jul 2025217 AMAQI
22nd Jul 2025218 AMAQI
22nd Jul 2025229 AMAQI
22nd Jul 20252210 AMAQI
22nd Jul 20252211 AMAQI
22nd Jul 20252212 PMAQI
22nd Jul 2025231 PMAQI
22nd Jul 2025232 PMAQI
22nd Jul 2025243 PMAQI
22nd Jul 2025244 PMAQI
22nd Jul 2025245 PMAQI
22nd Jul 2025266 PMAQI
22nd Jul 2025257 PMAQI
22nd Jul 2025258 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252310 PMAQI
22nd Jul 20252411 PMAQI
23rd Jul 20252312 AMAQI
23rd Jul 2025231 AMAQI
23rd Jul 2025212 AMAQI
23rd Jul 2025223 AMAQI
23rd Jul 2025224 AMAQI

17°C9/24°C

23rd Jul 2025225 AMAQI
23rd Jul 2025206 AMAQI
23rd Jul 2025217 AMAQI
23rd Jul 2025228 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252310 AMAQI
23rd Jul 20252411 AMAQI
23rd Jul 20252412 PMAQI
23rd Jul 2025241 PMAQI
23rd Jul 2025242 PMAQI
23rd Jul 2025223 PMAQI
23rd Jul 2025224 PMAQI
23rd Jul 2025255 PMAQI
23rd Jul 2025286 PMAQI
23rd Jul 2025277 PMAQI
23rd Jul 2025268 PMAQI
23rd Jul 2025249 PMAQI
23rd Jul 20252510 PMAQI
23rd Jul 20252711 PMAQI
24th Jul 20252812 AMAQI
24th Jul 2025281 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025283 AMAQI
24th Jul 2025294 AMAQI

20°C12/29°C

24th Jul 2025315 AMAQI
24th Jul 2025326 AMAQI
24th Jul 2025327 AMAQI
24th Jul 2025328 AMAQI
24th Jul 2025349 AMAQI
24th Jul 20253810 AMAQI
24th Jul 20253911 AMAQI
24th Jul 20254312 PMAQI
24th Jul 2025451 PMAQI
24th Jul 2025482 PMAQI
24th Jul 2025433 PMAQI
24th Jul 2025404 PMAQI
24th Jul 2025465 PMAQI
24th Jul 2025426 PMAQI
24th Jul 2025347 PMAQI
24th Jul 2025408 PMAQI
24th Jul 2025379 PMAQI
24th Jul 20253610 PMAQI
24th Jul 20253911 PMAQI
25th Jul 20253412 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025323 AMAQI
25th Jul 2025324 AMAQI

26°C17/35°C

25th Jul 2025305 AMAQI
25th Jul 2025296 AMAQI
25th Jul 2025277 AMAQI
25th Jul 2025288 AMAQI
25th Jul 2025299 AMAQI
25th Jul 20252810 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20252712 PMAQI
25th Jul 2025291 PMAQI
25th Jul 2025322 PMAQI
25th Jul 2025383 PMAQI
25th Jul 2025414 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025386 PMAQI
25th Jul 2025407 PMAQI
25th Jul 2025388 PMAQI
25th Jul 2025369 PMAQI
25th Jul 20253610 PMAQI
25th Jul 20253611 PMAQI
26th Jul 20253512 AMAQI
26th Jul 2025361 AMAQI
26th Jul 2025632 AMAQI
26th Jul 2025713 AMAQI
26th Jul 2025654 AMAQI

24°C18/30°C

26th Jul 2025745 AMAQI
26th Jul 2025736 AMAQI
26th Jul 2025657 AMAQI
26th Jul 2025608 AMAQI
26th Jul 2025629 AMAQI
26th Jul 20256310 AMAQI
26th Jul 20256211 AMAQI
26th Jul 20256212 PMAQI
26th Jul 2025611 PMAQI
26th Jul 2025622 PMAQI
26th Jul 2025603 PMAQI
26th Jul 2025604 PMAQI
26th Jul 2025605 PMAQI
26th Jul 2025596 PMAQI
26th Jul 2025577 PMAQI
26th Jul 2025568 PMAQI
26th Jul 2025569 PMAQI
26th Jul 20255710 PMAQI
26th Jul 20255411 PMAQI
27th Jul 20255312 AMAQI
27th Jul 2025541 AMAQI
27th Jul 2025482 AMAQI
27th Jul 2025453 AMAQI
27th Jul 2025384 AMAQI

23°C16/29°C

27th Jul 2025385 AMAQI
27th Jul 2025416 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025468 AMAQI
27th Jul 2025469 AMAQI
27th Jul 20254410 AMAQI
27th Jul 20254611 AMAQI
27th Jul 20254612 PMAQI
27th Jul 2025471 PMAQI
27th Jul 2025482 PMAQI
27th Jul 2025493 PMAQI
27th Jul 2025524 PMAQI
27th Jul 2025515 PMAQI
27th Jul 2025486 PMAQI
27th Jul 2025507 PMAQI
27th Jul 2025468 PMAQI
27th Jul 2025479 PMAQI
27th Jul 20254710 PMAQI
27th Jul 20255011 PMAQI
28th Jul 20255012 AMAQI
28th Jul 2025521 AMAQI
28th Jul 2025542 AMAQI
28th Jul 2025593 AMAQI
28th Jul 2025544 AMAQI

25°C20/32°C

28th Jul 2025545 AMAQI
28th Jul 2025536 AMAQI
28th Jul 2025527 AMAQI
28th Jul 2025528 AMAQI
28th Jul 2025559 AMAQI
28th Jul 20255610 AMAQI
28th Jul 20255611 AMAQI
28th Jul 20255612 PMAQI
28th Jul 2025561 PMAQI
28th Jul 2025562 PMAQI
28th Jul 2025563 PMAQI
28th Jul 2025544 PMAQI
28th Jul 2025545 PMAQI
28th Jul 2025536 PMAQI
28th Jul 2025537 PMAQI
28th Jul 2025538 PMAQI
28th Jul 2025539 PMAQI
28th Jul 20255310 PMAQI
28th Jul 20255211 PMAQI
29th Jul 20255212 AMAQI
29th Jul 2025501 AMAQI
29th Jul 2025452 AMAQI
29th Jul 2025463 AMAQI
29th Jul 2025474 AMAQI

25°C17/35°C

29th Jul 2025485 AMAQI
29th Jul 2025466 AMAQI
29th Jul 2025467 AMAQI
29th Jul 2025468 AMAQI
29th Jul 2025489 AMAQI
29th Jul 20254710 AMAQI
29th Jul 20254811 AMAQI
29th Jul 20254712 PMAQI
29th Jul 2025461 PMAQI
29th Jul 2025442 PMAQI
29th Jul 2025463 PMAQI
29th Jul 2025464 PMAQI
29th Jul 2025465 PMAQI
29th Jul 2025466 PMAQI
29th Jul 2025477 PMAQI
29th Jul 2025468 PMAQI
29th Jul 2025489 PMAQI
29th Jul 20254810 PMAQI
29th Jul 20254511 PMAQI
30th Jul 20254612 AMAQI
30th Jul 2025451 AMAQI
30th Jul 2025412 AMAQI
30th Jul 2025463 AMAQI
30th Jul 2025474 AMAQI

24°C17/33°C

30th Jul 2025495 AMAQI
30th Jul 2025516 AMAQI
30th Jul 2025517 AMAQI
30th Jul 2025508 AMAQI
30th Jul 2025529 AMAQI
30th Jul 20255310 AMAQI
30th Jul 20255211 AMAQI
30th Jul 20255312 PMAQI
30th Jul 2025541 PMAQI
30th Jul 2025552 PMAQI
30th Jul 2025563 PMAQI
30th Jul 2025574 PMAQI
30th Jul 2025575 PMAQI
30th Jul 2025576 PMAQI
30th Jul 2025577 PMAQI
30th Jul 2025578 PMAQI
30th Jul 2025579 PMAQI
30th Jul 20255710 PMAQI
30th Jul 20255411 PMAQI
31st Jul 20255212 AMAQI
31st Jul 2025541 AMAQI
31st Jul 2025602 AMAQI
31st Jul 2025623 AMAQI
31st Jul 2025694 AMAQI

23°C16/30°C

31st Jul 2025725 AMAQI
31st Jul 2025746 AMAQI
31st Jul 2025747 AMAQI
31st Jul 20251088 AMAQI
31st Jul 20251529 AMAQI
31st Jul 202511710 AMAQI
31st Jul 20256911 AMAQI
31st Jul 202510812 PMAQI
31st Jul 20251381 PMAQI
31st Jul 20251202 PMAQI
31st Jul 20251063 PMAQI
31st Jul 2025964 PMAQI
31st Jul 2025925 PMAQI
31st Jul 2025906 PMAQI
31st Jul 2025987 PMAQI
31st Jul 20251098 PMAQI
31st Jul 20251449 PMAQI
31st Jul 202512710 PMAQI
31st Jul 20259511 PMAQI
1st Aug 20259012 AMAQI
1st Aug 2025941 AMAQI
1st Aug 2025832 AMAQI
1st Aug 2025673 AMAQI
1st Aug 2025674 AMAQI

20°C16/25°C

1st Aug 2025715 AMAQI
1st Aug 2025596 AMAQI
1st Aug 2025557 AMAQI
1st Aug 2025488 AMAQI
1st Aug 2025419 AMAQI
1st Aug 20253510 AMAQI
1st Aug 20253111 AMAQI
1st Aug 20252812 PMAQI
1st Aug 2025281 PMAQI
1st Aug 2025302 PMAQI
1st Aug 2025293 PMAQI
1st Aug 2025284 PMAQI
1st Aug 2025325 PMAQI
1st Aug 2025316 PMAQI
1st Aug 2025287 PMAQI
1st Aug 2025318 PMAQI
1st Aug 2025449 PMAQI
1st Aug 20253810 PMAQI
1st Aug 20253411 PMAQI
2nd Aug 20253112 AMAQI
2nd Aug 2025441 AMAQI
2nd Aug 2025522 AMAQI
2nd Aug 2025463 AMAQI
2nd Aug 2025374 AMAQI

19°C13/26°C

2nd Aug 2025375 AMAQI
5 AM
2nd Aug 2025376 AMAQI
2nd Aug 2025407 AMAQI
2nd Aug 2025368 AMAQI
2nd Aug 2025309 AMAQI
2nd Aug 20253310 AMAQI
2nd Aug 20253011 AMAQI
2nd Aug 20253812 PMAQI
12 PM
2nd Aug 2025401 PMAQI
2nd Aug 2025422 PMAQI
2nd Aug 2025533 PMAQI
2nd Aug 2025664 PMAQI
2nd Aug 2025775 PMAQI
2nd Aug 2025886 PMAQI
2nd Aug 2025987 PMAQI
2nd Aug 2025958 PMAQI
8 PM
2nd Aug 2025649 PMAQI
12 AM
4 AM

19°C9/28°C

Day time
Avg. Highest Time
5 AM - 8 PM

47AQI

16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM

47AQI

16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 47), while the lowest AQI was between 5 AM to 8 PM (Avg. 47).
Night time
Avg. Highest Time
9 PM - 11 PM

47AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
12 AM - 4 AM

46AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 47), while the lowest AQI was between 12 AM to 4 AM (Avg. 46).

2025 Days Vs Air Quality

Newmarket, Ontario, Canada

2025

84%

178

16%

35

Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)

Good
178 Days
Moderate
35 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 84%

Health Risk Level:

Low

In 2025, 84% of 215 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

Newmarket, Ontario, Canada

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.

1st January 2025
20AQI
2nd January 2025
20AQI
3rd January 2025
24AQI
4th January 2025
29AQI
5th January 2025
28AQI
6th January 2025
23AQI
7th January 2025
23AQI
8th January 2025
24AQI
9th January 2025
27AQI
10th January 2025
41AQI
11th January 2025
58AQI
12th January 2025
54AQI
13th January 2025
36AQI
14th January 2025
27AQI
15th January 2025
23AQI
16th January 2025
52AQI
17th January 2025
37AQI
18th January 2025
30AQI
19th January 2025
25AQI
20th January 2025
25AQI
21st January 2025
26AQI
22nd January 2025
30AQI
23rd January 2025
45AQI
24th January 2025
35AQI
25th January 2025
50AQI
26th January 2025
32AQI
27th January 2025
28AQI
28th January 2025
28AQI
29th January 2025
30AQI
30th January 2025
25AQI
31st January 2025
56AQI
1st February 2025
28AQI
2nd February 2025
31AQI
3rd February 2025
49AQI
4th February 2025
25AQI
5th February 2025
24AQI
6th February 2025
30AQI
7th February 2025
28AQI
8th February 2025
32AQI
9th February 2025
29AQI
10th February 2025
29AQI
11th February 2025
32AQI
12th February 2025
27AQI
13th February 2025
26AQI
14th February 2025
29AQI
15th February 2025
31AQI
16th February 2025
28AQI
17th February 2025
28AQI
18th February 2025
27AQI
19th February 2025
22AQI
20th February 2025
20AQI
21st February 2025
26AQI
22nd February 2025
48AQI
23rd February 2025
57AQI
24th February 2025
63AQI
25th February 2025
65AQI
26th February 2025
28AQI
27th February 2025
33AQI
28th February 2025
25AQI
1st March 2025
28AQI
2nd March 2025
27AQI
3rd March 2025
31AQI
4th March 2025
44AQI
5th March 2025
36AQI
6th March 2025
25AQI
7th March 2025
32AQI
8th March 2025
31AQI
9th March 2025
29AQI
10th March 2025
30AQI
11th March 2025
33AQI
12th March 2025
25AQI
13th March 2025
28AQI
14th March 2025
51AQI
15th March 2025
57AQI
16th March 2025
32AQI
17th March 2025
15AQI
18th March 2025
28AQI
19th March 2025
29AQI
20th March 2025
26AQI
21st March 2025
17AQI
22nd March 2025
17AQI
23rd March 2025
27AQI
24th March 2025
20AQI
25th March 2025
18AQI
26th March 2025
19AQI
27th March 2025
22AQI
28th March 2025
20AQI
29th March 2025
19AQI
30th March 2025
21AQI
31st March 2025
22AQI
1st April 2025
17AQI
2nd April 2025
18AQI
3rd April 2025
24AQI
4th April 2025
17AQI
5th April 2025
20AQI
6th April 2025
16AQI
7th April 2025
20AQI
8th April 2025
15AQI
9th April 2025
19AQI
10th April 2025
36AQI
11th April 2025
29AQI
12th April 2025
24AQI
13th April 2025
30AQI
14th April 2025
31AQI
15th April 2025
18AQI
16th April 2025
13AQI
17th April 2025
18AQI
18th April 2025
34AQI
19th April 2025
40AQI
20th April 2025
16AQI
21st April 2025
20AQI
22nd April 2025
16AQI
23rd April 2025
20AQI
24th April 2025
33AQI
25th April 2025
37AQI
26th April 2025
24AQI
27th April 2025
15AQI
28th April 2025
23AQI
29th April 2025
34AQI
30th April 2025
17AQI
1st May 2025
29AQI
2nd May 2025
27AQI
3rd May 2025
16AQI
4th May 2025
16AQI
5th May 2025
20AQI
6th May 2025
21AQI
7th May 2025
30AQI
8th May 2025
17AQI
9th May 2025
20AQI
10th May 2025
22AQI
11th May 2025
22AQI
12th May 2025
26AQI
13th May 2025
37AQI
14th May 2025
23AQI
15th May 2025
27AQI
16th May 2025
39AQI
17th May 2025
35AQI
18th May 2025
16AQI
19th May 2025
14AQI
20th May 2025
15AQI
21st May 2025
16AQI
22nd May 2025
11AQI
23rd May 2025
11AQI
24th May 2025
14AQI
25th May 2025
15AQI
26th May 2025
22AQI
27th May 2025
28AQI
28th May 2025
25AQI
29th May 2025
24AQI
30th May 2025
32AQI
31st May 2025
30AQI
1st June 2025
15AQI
2nd June 2025
18AQI
3rd June 2025
42AQI
4th June 2025
65AQI
5th June 2025
55AQI
6th June 2025
64AQI
7th June 2025
68AQI
8th June 2025
80AQI
9th June 2025
70AQI
10th June 2025
55AQI
11th June 2025
62AQI
12th June 2025
68AQI
13th June 2025
46AQI
14th June 2025
36AQI
15th June 2025
36AQI
16th June 2025
39AQI
17th June 2025
40AQI
18th June 2025
37AQI
19th June 2025
39AQI
20th June 2025
37AQI
21st June 2025
50AQI
22nd June 2025
52AQI
23rd June 2025
55AQI
24th June 2025
56AQI
25th June 2025
48AQI
26th June 2025
46AQI
27th June 2025
38AQI
28th June 2025
31AQI
29th June 2025
32AQI
30th June 2025
42AQI
1st July 2025
42AQI
2nd July 2025
42AQI
3rd July 2025
51AQI
4th July 2025
38AQI
5th July 2025
48AQI
6th July 2025
54AQI
7th July 2025
52AQI
8th July 2025
39AQI
9th July 2025
48AQI
10th July 2025
44AQI
11th July 2025
52AQI
12th July 2025
53AQI
13th July 2025
49AQI
14th July 2025
51AQI
15th July 2025
58AQI
16th July 2025
66AQI
17th July 2025
51AQI
18th July 2025
28AQI
19th July 2025
32AQI
20th July 2025
30AQI
21st July 2025
40AQI
22nd July 2025
26AQI
23rd July 2025
23AQI
24th July 2025
35AQI
25th July 2025
33AQI
26th July 2025
56AQI
27th July 2025
48AQI
28th July 2025
53AQI
29th July 2025
48AQI
30th July 2025
51AQI
31st July 2025
90AQI
1st August 2025
55AQI

33AQI

33AQI

28AQI

23AQI

23AQI

47AQI

46AQI

55AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202533AQI

27
4
25
3
29
2
30
31
18
12
18
13
1
178
35

Highest AQI recorded in

August

55AQI

Lowest AQI recorded in

May

23AQI

202431AQI

27
4
28
1
31
29
1
31
27
1
28
3
22
9
26
4
29
2
30
29
2
337
27

Highest AQI recorded in

August

37AQI

Lowest AQI recorded in

November

23AQI

202339AQI

27
4
25
3
29
2
24
6
29
2
9
17
2
2
22
7
2
21
9
1
26
4
26
5
27
2
25
6
290
67
5
2

Highest AQI recorded in

June

73AQI

Lowest AQI recorded in

October

30AQI

202232AQI

29
2
20
1
28
3
23
1
30
1
26
4
24
1
27
30
1
26
4
29
2
293
19

Highest AQI recorded in

June

35AQI

Lowest AQI recorded in

August

17AQI

202132AQI

26
4
26
2
31
30
27
4
26
4
24
7
26
5
30
30
1
27
3
29
2
332
32

Highest AQI recorded in

July

38AQI

Lowest AQI recorded in

September

24AQI

202031AQI

12
21
17
1
27
3
30
1
31
28
2
31
26
4
25
6
248
17

Highest AQI recorded in

June

35AQI

Lowest AQI recorded in

October

24AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
39AQI
Least Polluted Year Recorded
2020(Avg.)
31AQI

Newmarket's annual 2025 AQI (33) shows an average percentage change of 1.8% (worsened AQI) compared to previous years: 2020 (31), 2021 (32), 2022 (32), 2023 (39), 2024 (31).