Chatham, 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+
July Air Quality Analysis
Chatham, Ontario, Canada
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Jul 2025
100AQILowest AQI recorded on
9th Jul 2022
21AQISame Day Analysis (29th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 28 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 29th Jul - 30th Jul 2026
Chatham, Ontario, Canada
AQI
Day
Night
.
6 AM29th Jul 2026
9 PM
5 AM30th Jul 2026
Day time
Avg. Highest Time
7PM29th Jul
34AQI
Avg. Lowest Time
10AM29th Jul
23AQI
Night time
Avg. Highest Time
12AM30th Jul
31AQI
Avg. Lowest Time
10PM29th Jul
22AQI
In the last 24 hours,
Chatham's AQI reached its highest point of 34 at 7 PM during the Day, while the lowest point, 22, was recorded at 10 PM during the Night between 29th Jul and 30th Jul 2026.
Day & Night AQI Trend : Jul 2026
Chatham, Ontario, Canada
Jul
01st - 02nd02nd - 03rd03rd - 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
Day
Night
1st Jul 2026266 AMAQI
1st Jul 2026277 AMAQI
1st Jul 2026638 AMAQI
1st Jul 2026649 AMAQI
1st Jul 20266410 AMAQI
1st Jul 20266611 AMAQI
1st Jul 20266612 PMAQI
1st Jul 2026681 PMAQI
1st Jul 2026662 PMAQI
1st Jul 2026643 PMAQI
1st Jul 2026664 PMAQI
1st Jul 2026665 PMAQI
1st Jul 2026686 PMAQI
1st Jul 2026687 PMAQI
1st Jul 2026658 PMAQI
1st Jul 2026669 PMAQI
1st Jul 20266810 PMAQI
1st Jul 20266811 PMAQI
2nd Jul 20266812 AMAQI
2nd Jul 2026661 AMAQI
2nd Jul 2026652 AMAQI
2nd Jul 2026603 AMAQI
2nd Jul 2026564 AMAQI
2nd Jul 2026585 AMAQI
31°C25/39°C
2nd Jul 2026576 AMAQI
2nd Jul 2026567 AMAQI
2nd Jul 2026568 AMAQI
2nd Jul 2026549 AMAQI
2nd Jul 20265010 AMAQI
2nd Jul 20265011 AMAQI
2nd Jul 20264612 PMAQI
2nd Jul 2026501 PMAQI
2nd Jul 2026472 PMAQI
2nd Jul 2026363 PMAQI
2nd Jul 2026484 PMAQI
2nd Jul 2026445 PMAQI
2nd Jul 2026336 PMAQI
2nd Jul 2026347 PMAQI
2nd Jul 2026278 PMAQI
2nd Jul 2026299 PMAQI
2nd Jul 20263010 PMAQI
2nd Jul 20263611 PMAQI
3rd Jul 20264212 AMAQI
3rd Jul 2026521 AMAQI
3rd Jul 2026302 AMAQI
3rd Jul 2026283 AMAQI
3rd Jul 2026294 AMAQI
3rd Jul 2026305 AMAQI
31°C25/37°C
3rd Jul 2026306 AMAQI
3rd Jul 2026287 AMAQI
3rd Jul 2026308 AMAQI
3rd Jul 2026299 AMAQI
3rd Jul 20263010 AMAQI
3rd Jul 20263111 AMAQI
3rd Jul 20263112 PMAQI
3rd Jul 2026301 PMAQI
3rd Jul 2026302 PMAQI
3rd Jul 2026273 PMAQI
3rd Jul 2026284 PMAQI
3rd Jul 2026285 PMAQI
3rd Jul 2026286 PMAQI
3rd Jul 2026287 PMAQI
3rd Jul 2026278 PMAQI
3rd Jul 2026259 PMAQI
3rd Jul 20262610 PMAQI
3rd Jul 20262411 PMAQI
4th Jul 20262212 AMAQI
4th Jul 2026241 AMAQI
4th Jul 2026302 AMAQI
4th Jul 2026283 AMAQI
4th Jul 2026274 AMAQI
4th Jul 2026265 AMAQI
30°C24/38°C
4th Jul 2026286 AMAQI
4th Jul 2026267 AMAQI
4th Jul 2026278 AMAQI
4th Jul 2026279 AMAQI
4th Jul 20262710 AMAQI
4th Jul 20262711 AMAQI
4th Jul 20262912 PMAQI
4th Jul 2026241 PMAQI
4th Jul 2026242 PMAQI
4th Jul 2026243 PMAQI
4th Jul 2026324 PMAQI
4th Jul 2026235 PMAQI
4th Jul 2026256 PMAQI
4th Jul 2026247 PMAQI
4th Jul 2026228 PMAQI
4th Jul 2026219 PMAQI
4th Jul 20262010 PMAQI
4th Jul 20262011 PMAQI
5th Jul 20262112 AMAQI
5th Jul 2026241 AMAQI
5th Jul 2026282 AMAQI
5th Jul 2026283 AMAQI
5th Jul 2026264 AMAQI
5th Jul 2026405 AMAQI
25°C22/32°C
5th Jul 2026446 AMAQI
5th Jul 2026387 AMAQI
5th Jul 2026278 AMAQI
5th Jul 2026389 AMAQI
5th Jul 20262910 AMAQI
5th Jul 20262911 AMAQI
5th Jul 20263012 PMAQI
5th Jul 2026281 PMAQI
5th Jul 2026292 PMAQI
5th Jul 2026253 PMAQI
5th Jul 2026284 PMAQI
5th Jul 2026285 PMAQI
5th Jul 2026266 PMAQI
5th Jul 2026287 PMAQI
5th Jul 2026228 PMAQI
5th Jul 2026309 PMAQI
5th Jul 20261410 PMAQI
5th Jul 20262111 PMAQI
6th Jul 20262012 AMAQI
6th Jul 2026241 AMAQI
6th Jul 2026282 AMAQI
6th Jul 2026253 AMAQI
6th Jul 2026214 AMAQI
6th Jul 2026215 AMAQI
23°C21/26°C
6th Jul 2026226 AMAQI
6th Jul 2026297 AMAQI
6th Jul 2026298 AMAQI
6th Jul 2026289 AMAQI
6th Jul 20263010 AMAQI
6th Jul 20263111 AMAQI
6th Jul 20263212 PMAQI
6th Jul 2026331 PMAQI
6th Jul 2026332 PMAQI
6th Jul 2026323 PMAQI
6th Jul 2026314 PMAQI
6th Jul 2026325 PMAQI
6th Jul 2026306 PMAQI
6th Jul 2026317 PMAQI
6th Jul 2026268 PMAQI
6th Jul 2026269 PMAQI
6th Jul 20262510 PMAQI
6th Jul 20262411 PMAQI
7th Jul 20262412 AMAQI
7th Jul 2026271 AMAQI
7th Jul 2026312 AMAQI
7th Jul 2026283 AMAQI
7th Jul 2026364 AMAQI
7th Jul 2026225 AMAQI
23°C18/30°C
7th Jul 2026306 AMAQI
7th Jul 2026297 AMAQI
7th Jul 2026308 AMAQI
7th Jul 2026309 AMAQI
7th Jul 20262810 AMAQI
7th Jul 20263411 AMAQI
7th Jul 20263212 PMAQI
7th Jul 2026311 PMAQI
7th Jul 2026322 PMAQI
7th Jul 2026293 PMAQI
7th Jul 2026304 PMAQI
7th Jul 2026315 PMAQI
7th Jul 2026306 PMAQI
7th Jul 2026307 PMAQI
7th Jul 2026298 PMAQI
7th Jul 2026289 PMAQI
7th Jul 20262510 PMAQI
7th Jul 20262611 PMAQI
8th Jul 20262512 AMAQI
8th Jul 2026261 AMAQI
8th Jul 2026302 AMAQI
8th Jul 2026293 AMAQI
8th Jul 2026264 AMAQI
8th Jul 2026265 AMAQI
24°C18/31°C
8th Jul 2026216 AMAQI
8th Jul 2026217 AMAQI
8th Jul 2026228 AMAQI
8th Jul 2026249 AMAQI
8th Jul 20262610 AMAQI
8th Jul 20263211 AMAQI
8th Jul 20262812 PMAQI
8th Jul 2026311 PMAQI
8th Jul 2026302 PMAQI
8th Jul 2026293 PMAQI
8th Jul 2026294 PMAQI
8th Jul 2026295 PMAQI
8th Jul 2026306 PMAQI
8th Jul 2026297 PMAQI
8th Jul 2026268 PMAQI
8th Jul 2026259 PMAQI
8th Jul 20262410 PMAQI
8th Jul 20262411 PMAQI
9th Jul 20262212 AMAQI
9th Jul 2026241 AMAQI
9th Jul 2026282 AMAQI
9th Jul 2026283 AMAQI
9th Jul 2026264 AMAQI
9th Jul 2026275 AMAQI
25°C18/33°C
9th Jul 2026266 AMAQI
9th Jul 2026287 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026279 AMAQI
9th Jul 20263110 AMAQI
9th Jul 20263011 AMAQI
9th Jul 20263212 PMAQI
9th Jul 2026291 PMAQI
9th Jul 2026322 PMAQI
9th Jul 2026273 PMAQI
9th Jul 2026314 PMAQI
9th Jul 2026305 PMAQI
9th Jul 2026286 PMAQI
9th Jul 2026307 PMAQI
9th Jul 2026318 PMAQI
9th Jul 2026319 PMAQI
9th Jul 20262910 PMAQI
9th Jul 20262811 PMAQI
10th Jul 20262612 AMAQI
10th Jul 2026241 AMAQI
10th Jul 2026262 AMAQI
10th Jul 2026263 AMAQI
10th Jul 2026324 AMAQI
10th Jul 2026325 AMAQI
27°C21/34°C
10th Jul 2026326 AMAQI
10th Jul 2026327 AMAQI
10th Jul 2026328 AMAQI
10th Jul 2026349 AMAQI
10th Jul 20262710 AMAQI
10th Jul 20263811 AMAQI
10th Jul 20263912 PMAQI
10th Jul 2026291 PMAQI
10th Jul 2026302 PMAQI
10th Jul 2026333 PMAQI
10th Jul 2026424 PMAQI
10th Jul 2026295 PMAQI
10th Jul 2026316 PMAQI
10th Jul 2026357 PMAQI
10th Jul 2026378 PMAQI
10th Jul 2026389 PMAQI
10th Jul 20262410 PMAQI
10th Jul 20261711 PMAQI
11th Jul 20262812 AMAQI
11th Jul 2026221 AMAQI
11th Jul 2026242 AMAQI
11th Jul 2026293 AMAQI
11th Jul 2026334 AMAQI
11th Jul 2026325 AMAQI
24°C21/30°C
11th Jul 2026326 AMAQI
11th Jul 2026287 AMAQI
11th Jul 2026308 AMAQI
11th Jul 2026329 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20263411 AMAQI
11th Jul 20263412 PMAQI
11th Jul 2026331 PMAQI
11th Jul 2026342 PMAQI
11th Jul 2026283 PMAQI
11th Jul 2026314 PMAQI
11th Jul 2026315 PMAQI
11th Jul 2026326 PMAQI
11th Jul 2026327 PMAQI
11th Jul 2026338 PMAQI
11th Jul 2026319 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20262611 PMAQI
12th Jul 20262612 AMAQI
12th Jul 2026241 AMAQI
12th Jul 2026242 AMAQI
12th Jul 2026283 AMAQI
12th Jul 2026314 AMAQI
12th Jul 2026305 AMAQI
24°C18/31°C
12th Jul 2026306 AMAQI
12th Jul 2026307 AMAQI
12th Jul 2026438 AMAQI
12th Jul 2026549 AMAQI
12th Jul 20265810 AMAQI
12th Jul 20265911 AMAQI
12th Jul 20265412 PMAQI
12th Jul 2026541 PMAQI
12th Jul 2026512 PMAQI
12th Jul 2026473 PMAQI
12th Jul 2026414 PMAQI
12th Jul 2026415 PMAQI
12th Jul 2026346 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026309 PMAQI
12th Jul 20262810 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20262312 AMAQI
13th Jul 2026241 AMAQI
13th Jul 2026222 AMAQI
13th Jul 2026263 AMAQI
13th Jul 2026324 AMAQI
13th Jul 2026315 AMAQI
24°C16/31°C
13th Jul 2026336 AMAQI
13th Jul 2026327 AMAQI
13th Jul 2026328 AMAQI
13th Jul 2026349 AMAQI
13th Jul 20263510 AMAQI
13th Jul 20263411 AMAQI
13th Jul 20263312 PMAQI
13th Jul 2026341 PMAQI
13th Jul 2026322 PMAQI
13th Jul 2026283 PMAQI
13th Jul 2026314 PMAQI
13th Jul 2026315 PMAQI
13th Jul 2026346 PMAQI
13th Jul 2026297 PMAQI
13th Jul 2026348 PMAQI
13th Jul 2026349 PMAQI
13th Jul 20262810 PMAQI
13th Jul 20262411 PMAQI
14th Jul 20262212 AMAQI
14th Jul 2026211 AMAQI
14th Jul 2026212 AMAQI
14th Jul 2026253 AMAQI
14th Jul 2026324 AMAQI
14th Jul 2026325 AMAQI
25°C16/34°C
14th Jul 2026326 AMAQI
14th Jul 2026337 AMAQI
14th Jul 2026348 AMAQI
14th Jul 2026359 AMAQI
14th Jul 20263410 AMAQI
14th Jul 20263611 AMAQI
14th Jul 20263812 PMAQI
14th Jul 2026331 PMAQI
14th Jul 2026332 PMAQI
14th Jul 2026283 PMAQI
14th Jul 2026334 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026326 PMAQI
14th Jul 2026327 PMAQI
14th Jul 2026318 PMAQI
14th Jul 2026329 PMAQI
14th Jul 20262710 PMAQI
14th Jul 20262511 PMAQI
15th Jul 20262212 AMAQI
15th Jul 2026221 AMAQI
15th Jul 2026202 AMAQI
15th Jul 2026233 AMAQI
15th Jul 2026264 AMAQI
15th Jul 2026265 AMAQI
30°C22/39°C
15th Jul 2026246 AMAQI
15th Jul 2026267 AMAQI
15th Jul 2026248 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20262610 AMAQI
15th Jul 202613511 AMAQI
15th Jul 20262812 PMAQI
15th Jul 2026301 PMAQI
15th Jul 2026292 PMAQI
15th Jul 2026293 PMAQI
15th Jul 20261124 PMAQI
15th Jul 2026295 PMAQI
15th Jul 2026306 PMAQI
15th Jul 2026307 PMAQI
15th Jul 2026428 PMAQI
15th Jul 2026649 PMAQI
15th Jul 20267310 PMAQI
15th Jul 20268611 PMAQI
16th Jul 20268012 AMAQI
16th Jul 2026771 AMAQI
16th Jul 2026762 AMAQI
16th Jul 2026773 AMAQI
16th Jul 2026794 AMAQI
16th Jul 2026865 AMAQI
29°C23/37°C
16th Jul 2026886 AMAQI
16th Jul 2026847 AMAQI
16th Jul 2026858 AMAQI
16th Jul 2026829 AMAQI
16th Jul 20268810 AMAQI
16th Jul 20268911 AMAQI
16th Jul 20268612 PMAQI
16th Jul 2026821 PMAQI
16th Jul 2026842 PMAQI
16th Jul 2026863 PMAQI
16th Jul 2026884 PMAQI
16th Jul 2026805 PMAQI
16th Jul 2026676 PMAQI
16th Jul 2026727 PMAQI
16th Jul 2026828 PMAQI
16th Jul 2026869 PMAQI
16th Jul 20268410 PMAQI
16th Jul 20268211 PMAQI
17th Jul 20268212 AMAQI
17th Jul 2026761 AMAQI
17th Jul 2026732 AMAQI
17th Jul 2026633 AMAQI
17th Jul 2026684 AMAQI
17th Jul 2026725 AMAQI
25°C18/33°C
17th Jul 2026646 AMAQI
17th Jul 20261157 AMAQI
17th Jul 20261608 AMAQI
17th Jul 20261609 AMAQI
17th Jul 202615610 AMAQI
17th Jul 202615411 AMAQI
17th Jul 202611312 PMAQI
17th Jul 2026721 PMAQI
17th Jul 2026802 PMAQI
17th Jul 2026703 PMAQI
17th Jul 2026684 PMAQI
17th Jul 2026665 PMAQI
17th Jul 2026626 PMAQI
17th Jul 2026677 PMAQI
17th Jul 2026688 PMAQI
17th Jul 2026639 PMAQI
17th Jul 20267010 PMAQI
17th Jul 20266311 PMAQI
18th Jul 20266412 AMAQI
18th Jul 2026641 AMAQI
18th Jul 2026592 AMAQI
18th Jul 2026603 AMAQI
18th Jul 2026604 AMAQI
18th Jul 2026665 AMAQI
23°C15/32°C
18th Jul 2026576 AMAQI
18th Jul 2026627 AMAQI
18th Jul 2026598 AMAQI
18th Jul 2026589 AMAQI
18th Jul 20265410 AMAQI
18th Jul 20266211 AMAQI
18th Jul 20265812 PMAQI
18th Jul 2026601 PMAQI
18th Jul 2026612 PMAQI
18th Jul 2026603 PMAQI
18th Jul 2026564 PMAQI
18th Jul 2026525 PMAQI
18th Jul 2026586 PMAQI
18th Jul 2026577 PMAQI
18th Jul 2026688 PMAQI
18th Jul 2026609 PMAQI
18th Jul 20266610 PMAQI
18th Jul 20267411 PMAQI
19th Jul 20266212 AMAQI
19th Jul 2026601 AMAQI
19th Jul 2026582 AMAQI
19th Jul 2026563 AMAQI
19th Jul 2026544 AMAQI
19th Jul 2026605 AMAQI
26°C20/34°C
19th Jul 2026686 AMAQI
19th Jul 2026667 AMAQI
19th Jul 2026768 AMAQI
19th Jul 2026829 AMAQI
19th Jul 20268810 AMAQI
19th Jul 20268411 AMAQI
19th Jul 20269212 PMAQI
19th Jul 20261031 PMAQI
19th Jul 20261002 PMAQI
19th Jul 20261013 PMAQI
19th Jul 20261004 PMAQI
19th Jul 20261075 PMAQI
19th Jul 20261006 PMAQI
19th Jul 2026997 PMAQI
19th Jul 20261008 PMAQI
19th Jul 20261019 PMAQI
19th Jul 20269410 PMAQI
19th Jul 20268411 PMAQI
20th Jul 20266912 AMAQI
20th Jul 2026621 AMAQI
20th Jul 2026622 AMAQI
20th Jul 2026583 AMAQI
20th Jul 2026574 AMAQI
20th Jul 2026605 AMAQI
21°C16/26°C
20th Jul 2026646 AMAQI
20th Jul 2026647 AMAQI
20th Jul 2026618 AMAQI
20th Jul 2026649 AMAQI
20th Jul 20267110 AMAQI
20th Jul 20267811 AMAQI
20th Jul 20268012 PMAQI
20th Jul 2026781 PMAQI
20th Jul 2026792 PMAQI
20th Jul 2026763 PMAQI
20th Jul 2026864 PMAQI
20th Jul 2026825 PMAQI
20th Jul 2026806 PMAQI
20th Jul 2026897 PMAQI
20th Jul 2026928 PMAQI
20th Jul 2026939 PMAQI
20th Jul 20268410 PMAQI
21st Jul 20267712 AMAQI
21st Jul 2026841 AMAQI
21st Jul 2026762 AMAQI
21st Jul 2026803 AMAQI
21st Jul 2026724 AMAQI
21st Jul 2026885 AMAQI
21°C12/30°C
21st Jul 2026906 AMAQI
21st Jul 2026907 AMAQI
21st Jul 2026838 AMAQI
21st Jul 2026929 AMAQI
21st Jul 20269010 AMAQI
21st Jul 20269211 AMAQI
21st Jul 20267112 PMAQI
21st Jul 2026651 PMAQI
21st Jul 2026662 PMAQI
21st Jul 2026663 PMAQI
21st Jul 2026634 PMAQI
21st Jul 2026565 PMAQI
21st Jul 2026366 PMAQI
21st Jul 2026347 PMAQI
21st Jul 2026438 PMAQI
21st Jul 2026349 PMAQI
21st Jul 20262610 PMAQI
21st Jul 20262911 PMAQI
22nd Jul 20262812 AMAQI
22nd Jul 2026281 AMAQI
22nd Jul 2026342 AMAQI
22nd Jul 2026283 AMAQI
22nd Jul 2026364 AMAQI
22nd Jul 2026365 AMAQI
25°C19/35°C
22nd Jul 2026326 AMAQI
22nd Jul 2026307 AMAQI
22nd Jul 2026308 AMAQI
22nd Jul 2026249 AMAQI
22nd Jul 20262910 AMAQI
22nd Jul 20262511 AMAQI
22nd Jul 20263212 PMAQI
22nd Jul 2026231 PMAQI
22nd Jul 2026262 PMAQI
22nd Jul 2026243 PMAQI
22nd Jul 2026244 PMAQI
22nd Jul 2026245 PMAQI
22nd Jul 2026216 PMAQI
22nd Jul 2026267 PMAQI
22nd Jul 2026268 PMAQI
22nd Jul 2026249 PMAQI
22nd Jul 20262010 PMAQI
22nd Jul 20262411 PMAQI
23rd Jul 20262712 AMAQI
23rd Jul 2026281 AMAQI
23rd Jul 2026262 AMAQI
23rd Jul 2026233 AMAQI
23rd Jul 2026394 AMAQI
23rd Jul 2026325 AMAQI
19°C13/24°C
23rd Jul 2026276 AMAQI
23rd Jul 2026247 AMAQI
23rd Jul 2026268 AMAQI
23rd Jul 2026289 AMAQI
23rd Jul 20263010 AMAQI
23rd Jul 20265011 AMAQI
23rd Jul 20264512 PMAQI
23rd Jul 2026421 PMAQI
23rd Jul 2026212 PMAQI
23rd Jul 2026183 PMAQI
23rd Jul 2026244 PMAQI
23rd Jul 2026385 PMAQI
23rd Jul 2026246 PMAQI
23rd Jul 2026217 PMAQI
23rd Jul 2026288 PMAQI
23rd Jul 2026249 PMAQI
23rd Jul 20263010 PMAQI
23rd Jul 20262911 PMAQI
24th Jul 20265512 AMAQI
24th Jul 2026461 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026263 AMAQI
24th Jul 2026244 AMAQI
24th Jul 2026245 AMAQI
19°C11/27°C
24th Jul 2026226 AMAQI
24th Jul 2026327 AMAQI
24th Jul 2026318 AMAQI
24th Jul 2026249 AMAQI
24th Jul 20262610 AMAQI
24th Jul 20262611 AMAQI
24th Jul 20265012 PMAQI
24th Jul 2026331 PMAQI
24th Jul 2026332 PMAQI
24th Jul 2026443 PMAQI
24th Jul 2026334 PMAQI
24th Jul 2026375 PMAQI
24th Jul 2026336 PMAQI
24th Jul 2026337 PMAQI
24th Jul 2026318 PMAQI
24th Jul 2026299 PMAQI
24th Jul 20263810 PMAQI
24th Jul 20262511 PMAQI
25th Jul 20262512 AMAQI
25th Jul 2026341 AMAQI
25th Jul 2026352 AMAQI
25th Jul 2026253 AMAQI
25th Jul 2026324 AMAQI
25th Jul 2026265 AMAQI
20°C11/28°C
25th Jul 2026326 AMAQI
25th Jul 2026387 AMAQI
25th Jul 2026388 AMAQI
25th Jul 2026399 AMAQI
25th Jul 20263610 AMAQI
25th Jul 20262811 AMAQI
25th Jul 20262312 PMAQI
25th Jul 2026211 PMAQI
25th Jul 2026232 PMAQI
25th Jul 2026223 PMAQI
25th Jul 2026244 PMAQI
25th Jul 2026235 PMAQI
25th Jul 2026236 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026238 PMAQI
25th Jul 2026219 PMAQI
25th Jul 20262210 PMAQI
25th Jul 20263211 PMAQI
26th Jul 20263412 AMAQI
26th Jul 2026381 AMAQI
26th Jul 2026362 AMAQI
26th Jul 2026383 AMAQI
26th Jul 2026364 AMAQI
26th Jul 2026365 AMAQI
22°C15/30°C
26th Jul 2026386 AMAQI
26th Jul 2026367 AMAQI
26th Jul 2026388 AMAQI
26th Jul 2026389 AMAQI
26th Jul 20263610 AMAQI
26th Jul 20263611 AMAQI
26th Jul 20263812 PMAQI
26th Jul 2026361 PMAQI
26th Jul 2026342 PMAQI
26th Jul 2026343 PMAQI
26th Jul 2026364 PMAQI
26th Jul 2026385 PMAQI
26th Jul 2026436 PMAQI
26th Jul 2026497 PMAQI
26th Jul 2026508 PMAQI
26th Jul 2026479 PMAQI
26th Jul 20264410 PMAQI
26th Jul 20264611 PMAQI
27th Jul 20264712 AMAQI
27th Jul 2026471 AMAQI
27th Jul 2026432 AMAQI
27th Jul 2026443 AMAQI
27th Jul 2026464 AMAQI
27th Jul 2026425 AMAQI
24°C18/31°C
27th Jul 2026486 AMAQI
27th Jul 2026477 AMAQI
27th Jul 2026528 AMAQI
27th Jul 2026559 AMAQI
27th Jul 20265610 AMAQI
27th Jul 20265611 AMAQI
27th Jul 20265612 PMAQI
27th Jul 2026541 PMAQI
27th Jul 2026562 PMAQI
27th Jul 2026583 PMAQI
27th Jul 2026574 PMAQI
27th Jul 2026565 PMAQI
27th Jul 2026566 PMAQI
27th Jul 2026567 PMAQI
27th Jul 2026568 PMAQI
27th Jul 2026569 PMAQI
27th Jul 20265610 PMAQI
27th Jul 20265811 PMAQI
28th Jul 20266212 AMAQI
28th Jul 2026611 AMAQI
28th Jul 2026662 AMAQI
28th Jul 2026613 AMAQI
28th Jul 2026604 AMAQI
28th Jul 2026585 AMAQI
26°C19/34°C
28th Jul 2026526 AMAQI
28th Jul 2026487 AMAQI
28th Jul 2026528 AMAQI
28th Jul 2026589 AMAQI
28th Jul 20265810 AMAQI
28th Jul 20265811 AMAQI
28th Jul 20265812 PMAQI
28th Jul 2026551 PMAQI
28th Jul 2026582 PMAQI
28th Jul 2026603 PMAQI
28th Jul 2026574 PMAQI
28th Jul 2026525 PMAQI
28th Jul 2026506 PMAQI
28th Jul 2026467 PMAQI
28th Jul 2026448 PMAQI
28th Jul 2026419 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20264211 PMAQI
29th Jul 20263812 AMAQI
29th Jul 2026361 AMAQI
29th Jul 2026322 AMAQI
29th Jul 2026303 AMAQI
29th Jul 2026294 AMAQI
29th Jul 2026285 AMAQI
22°C18/28°C
29th Jul 2026286 AMAQI
29th Jul 2026287 AMAQI
29th Jul 2026248 AMAQI
29th Jul 2026259 AMAQI
29th Jul 20262310 AMAQI
29th Jul 20262411 AMAQI
29th Jul 20262812 PMAQI
29th Jul 2026321 PMAQI
29th Jul 2026262 PMAQI
29th Jul 2026263 PMAQI
29th Jul 2026254 PMAQI
29th Jul 2026325 PMAQI
29th Jul 2026276 PMAQI
29th Jul 2026347 PMAQI
29th Jul 2026268 PMAQI
29th Jul 2026279 PMAQI
29th Jul 20262210 PMAQI
29th Jul 20262411 PMAQI
30th Jul 20263112 AMAQI
30th Jul 2026271 AMAQI
30th Jul 2026282 AMAQI
30th Jul 2026243 AMAQI
30th Jul 2026304 AMAQI
30th Jul 2026315 AMAQI
22°C15/29°C
30th Jul 2026296 AMAQI
6 AM30th Jul 2026257 AMAQI
30th Jul 2026368 AMAQI
30th Jul 2026449 AMAQI
30th Jul 20263810 AMAQI
30th Jul 20262311 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026371 PMAQI
1 PM30th Jul 2026402 PMAQI
30th Jul 2026463 PMAQI
30th Jul 2026504 PMAQI
30th Jul 2026505 PMAQI
30th Jul 2026416 PMAQI
30th Jul 2026447 PMAQI
30th Jul 2026368 PMAQI
30th Jul 2026389 PMAQI
9 PM30th Jul 20263710 PMAQI
30th Jul 20264511 PMAQI
1 AM
5 AM
24°C16/33°C
Day time
Avg. Highest Time
11 AM
52AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
6 AM
40AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 11 AM (Avg. 52), while the lowest AQI was between 6 AM to 6 AM (Avg. 40).
Night time
Avg. Highest Time
12 AM - 11 PM
39AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
39AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 39), while the lowest AQI was between 12 AM to 11 PM (Avg. 39).
2026 Days Vs Air Quality
Chatham, Ontario, Canada
2026
90%
186
10%
21
Total number of days with different AQI categories in last 211 days in 2026 (154 days remaining)
Good
186 DaysModerate
21 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 211 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
Chatham, Ontario, Canada
AQI levels in 2026
AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
14AQI (US)
14AQI (US)
2nd January 2026
18AQI (US)
18AQI (US)
3rd January 2026
23AQI (US)
23AQI (US)
4th January 2026
25AQI (US)
25AQI (US)
5th January 2026
51AQI (US)
51AQI (US)
6th January 2026
67AQI (US)
67AQI (US)
7th January 2026
50AQI (US)
50AQI (US)
8th January 2026
50AQI (US)
50AQI (US)
9th January 2026
22AQI (US)
22AQI (US)
10th January 2026
16AQI (US)
16AQI (US)
11th January 2026
16AQI (US)
16AQI (US)
12th January 2026
22AQI (US)
22AQI (US)
13th January 2026
34AQI (US)
34AQI (US)
14th January 2026
20AQI (US)
20AQI (US)
15th January 2026
14AQI (US)
14AQI (US)
16th January 2026
21AQI (US)
21AQI (US)
17th January 2026
32AQI (US)
32AQI (US)
18th January 2026
24AQI (US)
24AQI (US)
19th January 2026
32AQI (US)
32AQI (US)
20th January 2026
30AQI (US)
30AQI (US)
21st January 2026
30AQI (US)
30AQI (US)
22nd January 2026
58AQI (US)
58AQI (US)
23rd January 2026
60AQI (US)
60AQI (US)
24th January 2026
48AQI (US)
48AQI (US)
25th January 2026
50AQI (US)
50AQI (US)
26th January 2026
47AQI (US)
47AQI (US)
27th January 2026
38AQI (US)
38AQI (US)
28th January 2026
44AQI (US)
44AQI (US)
29th January 2026
50AQI (US)
50AQI (US)
30th January 2026
58AQI (US)
58AQI (US)
31st January 2026
43AQI (US)
43AQI (US)
1st February 2026
45AQI (US)
45AQI (US)
2nd February 2026
52AQI (US)
52AQI (US)
3rd February 2026
48AQI (US)
48AQI (US)
4th February 2026
44AQI (US)
44AQI (US)
5th February 2026
51AQI (US)
51AQI (US)
6th February 2026
49AQI (US)
49AQI (US)
7th February 2026
40AQI (US)
40AQI (US)
8th February 2026
42AQI (US)
42AQI (US)
9th February 2026
47AQI (US)
47AQI (US)
10th February 2026
43AQI (US)
43AQI (US)
11th February 2026
39AQI (US)
39AQI (US)
12th February 2026
38AQI (US)
38AQI (US)
13th February 2026
46AQI (US)
46AQI (US)
14th February 2026
50AQI (US)
50AQI (US)
15th February 2026
46AQI (US)
46AQI (US)
16th February 2026
46AQI (US)
46AQI (US)
17th February 2026
57AQI (US)
57AQI (US)
18th February 2026
43AQI (US)
43AQI (US)
19th February 2026
42AQI (US)
42AQI (US)
20th February 2026
42AQI (US)
42AQI (US)
21st February 2026
36AQI (US)
36AQI (US)
22nd February 2026
36AQI (US)
36AQI (US)
23rd February 2026
36AQI (US)
36AQI (US)
24th February 2026
44AQI (US)
44AQI (US)
25th February 2026
44AQI (US)
44AQI (US)
26th February 2026
34AQI (US)
34AQI (US)
27th February 2026
35AQI (US)
35AQI (US)
28th February 2026
34AQI (US)
34AQI (US)
1st March 2026
38AQI (US)
38AQI (US)
2nd March 2026
57AQI (US)
57AQI (US)
3rd March 2026
44AQI (US)
44AQI (US)
4th March 2026
46AQI (US)
46AQI (US)
5th March 2026
42AQI (US)
42AQI (US)
6th March 2026
36AQI (US)
36AQI (US)
7th March 2026
39AQI (US)
39AQI (US)
8th March 2026
38AQI (US)
38AQI (US)
9th March 2026
36AQI (US)
36AQI (US)
10th March 2026
34AQI (US)
34AQI (US)
11th March 2026
42AQI (US)
42AQI (US)
12th March 2026
38AQI (US)
38AQI (US)
13th March 2026
41AQI (US)
41AQI (US)
14th March 2026
35AQI (US)
35AQI (US)
15th March 2026
32AQI (US)
32AQI (US)
16th March 2026
37AQI (US)
37AQI (US)
17th March 2026
34AQI (US)
34AQI (US)
18th March 2026
31AQI (US)
31AQI (US)
19th March 2026
38AQI (US)
38AQI (US)
20th March 2026
42AQI (US)
42AQI (US)
21st March 2026
40AQI (US)
40AQI (US)
22nd March 2026
36AQI (US)
36AQI (US)
23rd March 2026
40AQI (US)
40AQI (US)
24th March 2026
36AQI (US)
36AQI (US)
25th March 2026
32AQI (US)
32AQI (US)
26th March 2026
37AQI (US)
37AQI (US)
27th March 2026
29AQI (US)
29AQI (US)
28th March 2026
30AQI (US)
30AQI (US)
29th March 2026
29AQI (US)
29AQI (US)
30th March 2026
26AQI (US)
26AQI (US)
31st March 2026
28AQI (US)
28AQI (US)
1st April 2026
29AQI (US)
29AQI (US)
2nd April 2026
29AQI (US)
29AQI (US)
3rd April 2026
29AQI (US)
29AQI (US)
4th April 2026
32AQI (US)
32AQI (US)
5th April 2026
30AQI (US)
30AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
27AQI (US)
27AQI (US)
8th April 2026
34AQI (US)
34AQI (US)
9th April 2026
29AQI (US)
29AQI (US)
10th April 2026
31AQI (US)
31AQI (US)
11th April 2026
30AQI (US)
30AQI (US)
12th April 2026
29AQI (US)
29AQI (US)
13th April 2026
31AQI (US)
31AQI (US)
14th April 2026
37AQI (US)
37AQI (US)
15th April 2026
36AQI (US)
36AQI (US)
16th April 2026
32AQI (US)
32AQI (US)
17th April 2026
18th April 2026
29AQI (US)
29AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
28AQI (US)
28AQI (US)
21st April 2026
28AQI (US)
28AQI (US)
22nd April 2026
23rd April 2026
24AQI (US)
24AQI (US)
24th April 2026
24AQI (US)
24AQI (US)
25th April 2026
28AQI (US)
28AQI (US)
26th April 2026
32AQI (US)
32AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
26AQI (US)
26AQI (US)
29th April 2026
24AQI (US)
24AQI (US)
30th April 2026
26AQI (US)
26AQI (US)
1st May 2026
25AQI (US)
25AQI (US)
2nd May 2026
23AQI (US)
23AQI (US)
3rd May 2026
22AQI (US)
22AQI (US)
4th May 2026
35AQI (US)
35AQI (US)
5th May 2026
38AQI (US)
38AQI (US)
6th May 2026
31AQI (US)
31AQI (US)
7th May 2026
26AQI (US)
26AQI (US)
8th May 2026
30AQI (US)
30AQI (US)
9th May 2026
10th May 2026
30AQI (US)
30AQI (US)
11th May 2026
27AQI (US)
27AQI (US)
12th May 2026
28AQI (US)
28AQI (US)
13th May 2026
32AQI (US)
32AQI (US)
14th May 2026
22AQI (US)
22AQI (US)
15th May 2026
46AQI (US)
46AQI (US)
16th May 2026
48AQI (US)
48AQI (US)
17th May 2026
54AQI (US)
54AQI (US)
18th May 2026
56AQI (US)
56AQI (US)
19th May 2026
52AQI (US)
52AQI (US)
20th May 2026
42AQI (US)
42AQI (US)
21st May 2026
40AQI (US)
40AQI (US)
22nd May 2026
42AQI (US)
42AQI (US)
23rd May 2026
50AQI (US)
50AQI (US)
24th May 2026
41AQI (US)
41AQI (US)
25th May 2026
42AQI (US)
42AQI (US)
26th May 2026
29AQI (US)
29AQI (US)
27th May 2026
28AQI (US)
28AQI (US)
28th May 2026
22AQI (US)
22AQI (US)
29th May 2026
24AQI (US)
24AQI (US)
30th May 2026
22AQI (US)
22AQI (US)
31st May 2026
28AQI (US)
28AQI (US)
1st June 2026
30AQI (US)
30AQI (US)
2nd June 2026
28AQI (US)
28AQI (US)
3rd June 2026
34AQI (US)
34AQI (US)
4th June 2026
26AQI (US)
26AQI (US)
5th June 2026
32AQI (US)
32AQI (US)
6th June 2026
26AQI (US)
26AQI (US)
7th June 2026
24AQI (US)
24AQI (US)
8th June 2026
26AQI (US)
26AQI (US)
9th June 2026
26AQI (US)
26AQI (US)
10th June 2026
27AQI (US)
27AQI (US)
11th June 2026
26AQI (US)
26AQI (US)
12th June 2026
26AQI (US)
26AQI (US)
13th June 2026
24AQI (US)
24AQI (US)
14th June 2026
23AQI (US)
23AQI (US)
15th June 2026
24AQI (US)
24AQI (US)
16th June 2026
27AQI (US)
27AQI (US)
17th June 2026
26AQI (US)
26AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
22AQI (US)
22AQI (US)
23rd June 2026
23AQI (US)
23AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
19AQI (US)
19AQI (US)
26th June 2026
26AQI (US)
26AQI (US)
27th June 2026
31AQI (US)
31AQI (US)
28th June 2026
28AQI (US)
28AQI (US)
29th June 2026
24AQI (US)
24AQI (US)
30th June 2026
27AQI (US)
27AQI (US)
1st July 2026
53AQI (US)
53AQI (US)
2nd July 2026
48AQI (US)
48AQI (US)
3rd July 2026
30AQI (US)
30AQI (US)
4th July 2026
25AQI (US)
25AQI (US)
5th July 2026
28AQI (US)
28AQI (US)
6th July 2026
28AQI (US)
28AQI (US)
7th July 2026
30AQI (US)
30AQI (US)
8th July 2026
27AQI (US)
27AQI (US)
9th July 2026
28AQI (US)
28AQI (US)
10th July 2026
31AQI (US)
31AQI (US)
11th July 2026
30AQI (US)
30AQI (US)
12th July 2026
38AQI (US)
38AQI (US)
13th July 2026
30AQI (US)
30AQI (US)
14th July 2026
30AQI (US)
30AQI (US)
15th July 2026
41AQI (US)
41AQI (US)
16th July 2026
82AQI (US)
82AQI (US)
17th July 2026
88AQI (US)
88AQI (US)
18th July 2026
60AQI (US)
60AQI (US)
19th July 2026
83AQI (US)
83AQI (US)
20th July 2026
74AQI (US)
74AQI (US)
21st July 2026
66AQI (US)
66AQI (US)
22nd July 2026
28AQI (US)
28AQI (US)
23rd July 2026
30AQI (US)
30AQI (US)
24th July 2026
32AQI (US)
32AQI (US)
25th July 2026
28AQI (US)
28AQI (US)
26th July 2026
39AQI (US)
39AQI (US)
27th July 2026
52AQI (US)
52AQI (US)
28th July 2026
54AQI (US)
54AQI (US)
29th July 2026
28AQI (US)
28AQI (US)
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
36AQI (US)
43AQI (US)
37AQI (US)
29AQI (US)
35AQI (US)
26AQI (US)
43AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
26
5
25
3
30
1
28
27
3
30
20
9
186
21
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202534AQI (US)
28
3
25
3
31
30
31
18
12
24
7
17
12
2
27
3
28
3
28
2
27
4
314
49
2
Highest AQI (US) recorded in
June48AQI (US)
Lowest AQI (US) recorded in
May21AQI (US)
202433AQI (US)
26
5
24
5
31
30
31
29
31
29
2
30
29
2
28
2
30
1
348
17
Highest AQI (US) recorded in
January37AQI (US)
Lowest AQI (US) recorded in
November28AQI (US)
202340AQI (US)
27
4
25
3
27
4
26
4
28
3
8
16
4
1
1
24
7
19
12
29
1
31
26
3
24
7
294
64
4
1
1
Highest AQI (US) recorded in
June75AQI (US)
Lowest AQI (US) recorded in
October30AQI (US)
202234AQI (US)
28
2
21
30
1
29
1
29
2
20
10
21
3
1
24
5
30
1
27
3
29
2
289
30
Highest AQI (US) recorded in
June47AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202135AQI (US)
26
3
25
3
29
2
27
3
29
2
27
3
25
6
23
8
27
3
29
2
30
31
328
35
Highest AQI (US) recorded in
August43AQI (US)
Lowest AQI (US) recorded in
November27AQI (US)
202034AQI (US)
15
18
23
7
27
4
27
4
25
5
29
2
25
5
25
6
214
33
Highest AQI (US) recorded in
June39AQI (US)
Lowest AQI (US) recorded in
October28AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
40AQI (US)Least Polluted Year Recorded
2024(Avg.)
33AQI (US)Chatham's annual 2026 AQI (US) (35) shows an average percentage change of 0.3% (worsened AQI (US)) compared to previous years: 2020 (34), 2021 (35), 2022 (34), 2023 (40), 2024 (33), 2025 (34).
