Ontario, Montreal, Quebec, 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
Ontario, Montreal, Quebec, Canada
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Aug 2024
77AQILowest AQI recorded on
14th Aug 2023
10AQISame Day Analysis (6th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 43 of Good air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Ontario, Montreal, Quebec, Canada
AQI
Day
Night
.
5 AM5th Aug 2026
8 PM
4 AM6th Aug 2026
Day time
Avg. Highest Time
12PM5th Aug
54AQI
Avg. Lowest Time
3PM5th Aug
21AQI
Night time
Avg. Highest Time
9PM5th Aug
53AQI
Avg. Lowest Time
2AM6th Aug
27AQI
In the last 24 hours,
Ontario's AQI reached its highest point of 54 at 12 PM during the Day, while the lowest point, 21, was recorded at 3 PM during the Day between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Ontario, Montreal, Quebec, Canada
JulAug
08th - 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 - 06th06th
Day
Night
8th Jul 2026255 AMAQI
8th Jul 2026226 AMAQI
8th Jul 2026227 AMAQI
8th Jul 2026248 AMAQI
8th Jul 2026249 AMAQI
8th Jul 20262610 AMAQI
8th Jul 20263111 AMAQI
8th Jul 20263212 PMAQI
8th Jul 2026311 PMAQI
8th Jul 2026302 PMAQI
8th Jul 2026303 PMAQI
8th Jul 2026284 PMAQI
8th Jul 2026305 PMAQI
8th Jul 2026296 PMAQI
8th Jul 2026267 PMAQI
8th Jul 2026268 PMAQI
8th Jul 2026269 PMAQI
8th Jul 20262510 PMAQI
8th Jul 20262711 PMAQI
9th Jul 20262912 AMAQI
9th Jul 2026281 AMAQI
9th Jul 2026252 AMAQI
9th Jul 2026323 AMAQI
9th Jul 2026284 AMAQI
25°C18/34°C
9th Jul 2026275 AMAQI
9th Jul 2026256 AMAQI
9th Jul 2026277 AMAQI
9th Jul 2026288 AMAQI
9th Jul 2026289 AMAQI
9th Jul 20263010 AMAQI
9th Jul 20263011 AMAQI
9th Jul 20263112 PMAQI
9th Jul 2026301 PMAQI
9th Jul 2026282 PMAQI
9th Jul 2026283 PMAQI
9th Jul 2026304 PMAQI
9th Jul 2026305 PMAQI
9th Jul 2026306 PMAQI
9th Jul 2026297 PMAQI
9th Jul 2026328 PMAQI
9th Jul 2026309 PMAQI
9th Jul 20262810 PMAQI
9th Jul 20263011 PMAQI
10th Jul 20262612 AMAQI
10th Jul 2026261 AMAQI
10th Jul 2026262 AMAQI
10th Jul 2026263 AMAQI
10th Jul 2026324 AMAQI
23°C20/29°C
10th Jul 2026315 AMAQI
10th Jul 2026346 AMAQI
10th Jul 2026307 AMAQI
10th Jul 2026328 AMAQI
10th Jul 2026349 AMAQI
10th Jul 20263610 AMAQI
10th Jul 20263911 AMAQI
10th Jul 20263812 PMAQI
10th Jul 2026341 PMAQI
10th Jul 2026342 PMAQI
10th Jul 2026303 PMAQI
10th Jul 2026344 PMAQI
10th Jul 2026345 PMAQI
10th Jul 2026346 PMAQI
10th Jul 2026367 PMAQI
10th Jul 2026368 PMAQI
10th Jul 2026379 PMAQI
10th Jul 20263110 PMAQI
10th Jul 20262911 PMAQI
11th Jul 20262612 AMAQI
11th Jul 2026281 AMAQI
11th Jul 2026252 AMAQI
11th Jul 2026283 AMAQI
11th Jul 2026324 AMAQI
23°C18/29°C
11th Jul 2026345 AMAQI
11th Jul 2026326 AMAQI
11th Jul 2026307 AMAQI
11th Jul 2026348 AMAQI
11th Jul 2026319 AMAQI
11th Jul 20263410 AMAQI
11th Jul 20263411 AMAQI
11th Jul 20263612 PMAQI
11th Jul 2026331 PMAQI
11th Jul 2026342 PMAQI
11th Jul 2026303 PMAQI
11th Jul 2026304 PMAQI
11th Jul 2026325 PMAQI
11th Jul 2026326 PMAQI
11th Jul 2026317 PMAQI
11th Jul 2026318 PMAQI
11th Jul 2026309 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20262811 PMAQI
12th Jul 20262812 AMAQI
12th Jul 2026231 AMAQI
12th Jul 2026222 AMAQI
12th Jul 2026253 AMAQI
12th Jul 2026564 AMAQI
21°C15/28°C
12th Jul 2026305 AMAQI
12th Jul 2026306 AMAQI
12th Jul 2026307 AMAQI
12th Jul 2026348 AMAQI
12th Jul 2026609 AMAQI
12th Jul 20263110 AMAQI
12th Jul 20266011 AMAQI
12th Jul 20263412 PMAQI
12th Jul 2026241 PMAQI
12th Jul 2026302 PMAQI
12th Jul 2026283 PMAQI
12th Jul 2026424 PMAQI
12th Jul 2026405 PMAQI
12th Jul 2026286 PMAQI
12th Jul 2026237 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026309 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20262212 AMAQI
13th Jul 2026221 AMAQI
13th Jul 2026242 AMAQI
13th Jul 2026263 AMAQI
13th Jul 2026404 AMAQI
23°C16/32°C
13th Jul 2026345 AMAQI
13th Jul 2026306 AMAQI
13th Jul 2026347 AMAQI
13th Jul 2026348 AMAQI
13th Jul 2026369 AMAQI
13th Jul 20264610 AMAQI
13th Jul 20264711 AMAQI
13th Jul 20264712 PMAQI
13th Jul 2026321 PMAQI
13th Jul 2026332 PMAQI
13th Jul 2026283 PMAQI
13th Jul 2026324 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026326 PMAQI
13th Jul 2026287 PMAQI
13th Jul 2026328 PMAQI
13th Jul 2026349 PMAQI
13th Jul 20263410 PMAQI
13th Jul 20262611 PMAQI
14th Jul 20262212 AMAQI
14th Jul 2026221 AMAQI
14th Jul 2026322 AMAQI
14th Jul 2026343 AMAQI
14th Jul 2026384 AMAQI
24°C17/30°C
14th Jul 2026325 AMAQI
14th Jul 2026306 AMAQI
14th Jul 2026327 AMAQI
14th Jul 2026308 AMAQI
14th Jul 2026389 AMAQI
14th Jul 20263810 AMAQI
14th Jul 20263611 AMAQI
14th Jul 20263612 PMAQI
14th Jul 2026371 PMAQI
14th Jul 2026342 PMAQI
14th Jul 2026283 PMAQI
14th Jul 2026324 PMAQI
14th Jul 2026265 PMAQI
14th Jul 2026346 PMAQI
14th Jul 2026307 PMAQI
14th Jul 2026528 PMAQI
14th Jul 2026569 PMAQI
14th Jul 20262810 PMAQI
14th Jul 20262611 PMAQI
15th Jul 20262512 AMAQI
15th Jul 2026221 AMAQI
15th Jul 2026642 AMAQI
15th Jul 2026363 AMAQI
15th Jul 2026524 AMAQI
26°C20/35°C
15th Jul 2026505 AMAQI
15th Jul 2026426 AMAQI
15th Jul 2026407 AMAQI
15th Jul 2026388 AMAQI
15th Jul 2026389 AMAQI
15th Jul 20265510 AMAQI
15th Jul 20263611 AMAQI
15th Jul 20263212 PMAQI
15th Jul 2026341 PMAQI
15th Jul 2026402 PMAQI
15th Jul 2026423 PMAQI
15th Jul 2026304 PMAQI
15th Jul 2026345 PMAQI
15th Jul 2026286 PMAQI
15th Jul 2026307 PMAQI
15th Jul 2026308 PMAQI
15th Jul 2026299 PMAQI
15th Jul 20262910 PMAQI
15th Jul 20263011 PMAQI
16th Jul 20263412 AMAQI
16th Jul 2026361 AMAQI
16th Jul 2026382 AMAQI
16th Jul 2026263 AMAQI
16th Jul 2026284 AMAQI
24°C20/29°C
16th Jul 2026305 AMAQI
16th Jul 2026326 AMAQI
16th Jul 2026497 AMAQI
16th Jul 2026548 AMAQI
16th Jul 2026549 AMAQI
16th Jul 20266010 AMAQI
16th Jul 20265811 AMAQI
16th Jul 20263112 PMAQI
16th Jul 2026571 PMAQI
16th Jul 2026282 PMAQI
16th Jul 2026403 PMAQI
16th Jul 2026304 PMAQI
16th Jul 2026285 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026267 PMAQI
16th Jul 2026308 PMAQI
16th Jul 2026309 PMAQI
16th Jul 20263010 PMAQI
16th Jul 20262811 PMAQI
17th Jul 20262812 AMAQI
17th Jul 2026251 AMAQI
17th Jul 2026242 AMAQI
17th Jul 2026293 AMAQI
17th Jul 2026364 AMAQI
21°C16/28°C
17th Jul 2026365 AMAQI
17th Jul 2026506 AMAQI
17th Jul 2026517 AMAQI
17th Jul 2026478 AMAQI
17th Jul 2026449 AMAQI
17th Jul 20264210 AMAQI
17th Jul 20264011 AMAQI
17th Jul 20264012 PMAQI
17th Jul 2026401 PMAQI
17th Jul 2026442 PMAQI
17th Jul 2026403 PMAQI
17th Jul 2026404 PMAQI
17th Jul 2026205 PMAQI
17th Jul 2026206 PMAQI
17th Jul 2026217 PMAQI
17th Jul 2026268 PMAQI
17th Jul 2026259 PMAQI
17th Jul 20262510 PMAQI
17th Jul 20265811 PMAQI
18th Jul 20262512 AMAQI
18th Jul 2026421 AMAQI
18th Jul 2026272 AMAQI
18th Jul 2026343 AMAQI
18th Jul 2026384 AMAQI
20°C13/28°C
18th Jul 2026525 AMAQI
18th Jul 2026466 AMAQI
18th Jul 2026387 AMAQI
18th Jul 2026388 AMAQI
18th Jul 2026509 AMAQI
18th Jul 20264210 AMAQI
18th Jul 20263211 AMAQI
18th Jul 20262112 PMAQI
18th Jul 2026621 PMAQI
18th Jul 2026362 PMAQI
18th Jul 2026443 PMAQI
18th Jul 2026444 PMAQI
18th Jul 2026645 PMAQI
18th Jul 2026626 PMAQI
18th Jul 2026677 PMAQI
18th Jul 2026628 PMAQI
18th Jul 2026649 PMAQI
18th Jul 20266410 PMAQI
18th Jul 20267311 PMAQI
19th Jul 20266012 AMAQI
19th Jul 2026621 AMAQI
19th Jul 2026442 AMAQI
19th Jul 2026423 AMAQI
19th Jul 2026364 AMAQI
19°C17/23°C
19th Jul 2026365 AMAQI
19th Jul 2026466 AMAQI
19th Jul 2026337 AMAQI
19th Jul 2026488 AMAQI
19th Jul 2026429 AMAQI
19th Jul 20263610 AMAQI
19th Jul 20262911 AMAQI
19th Jul 20264612 PMAQI
19th Jul 2026441 PMAQI
19th Jul 2026282 PMAQI
19th Jul 2026723 PMAQI
19th Jul 2026724 PMAQI
19th Jul 2026515 PMAQI
19th Jul 2026516 PMAQI
19th Jul 2026227 PMAQI
19th Jul 2026268 PMAQI
19th Jul 2026269 PMAQI
19th Jul 20262610 PMAQI
19th Jul 20262011 PMAQI
20th Jul 20266412 AMAQI
20th Jul 2026621 AMAQI
20th Jul 2026692 AMAQI
20th Jul 2026643 AMAQI
20th Jul 2026414 AMAQI
19°C14/24°C
20th Jul 2026445 AMAQI
20th Jul 2026546 AMAQI
20th Jul 2026507 AMAQI
20th Jul 2026288 AMAQI
20th Jul 2026299 AMAQI
20th Jul 20262510 AMAQI
20th Jul 20262611 AMAQI
20th Jul 20262912 PMAQI
20th Jul 2026241 PMAQI
20th Jul 2026442 PMAQI
20th Jul 2026343 PMAQI
20th Jul 2026264 PMAQI
20th Jul 2026235 PMAQI
20th Jul 2026316 PMAQI
20th Jul 2026247 PMAQI
20th Jul 2026348 PMAQI
20th Jul 2026389 PMAQI
20th Jul 20264210 PMAQI
21st Jul 20264012 AMAQI
21st Jul 2026341 AMAQI
21st Jul 2026252 AMAQI
21st Jul 2026343 AMAQI
21st Jul 2026324 AMAQI
21°C14/30°C
21st Jul 2026465 AMAQI
21st Jul 2026406 AMAQI
21st Jul 2026467 AMAQI
21st Jul 2026338 AMAQI
21st Jul 2026299 AMAQI
21st Jul 20263810 AMAQI
21st Jul 20265411 AMAQI
21st Jul 20263812 PMAQI
21st Jul 2026481 PMAQI
21st Jul 2026512 PMAQI
21st Jul 2026533 PMAQI
21st Jul 2026544 PMAQI
21st Jul 2026535 PMAQI
21st Jul 2026506 PMAQI
21st Jul 2026487 PMAQI
21st Jul 2026468 PMAQI
21st Jul 2026469 PMAQI
21st Jul 20264210 PMAQI
21st Jul 20264011 PMAQI
22nd Jul 20264012 AMAQI
22nd Jul 2026401 AMAQI
22nd Jul 2026402 AMAQI
22nd Jul 2026403 AMAQI
22nd Jul 2026404 AMAQI
22°C17/29°C
22nd Jul 2026365 AMAQI
22nd Jul 2026386 AMAQI
22nd Jul 2026337 AMAQI
22nd Jul 2026278 AMAQI
22nd Jul 2026269 AMAQI
22nd Jul 20262610 AMAQI
22nd Jul 20262611 AMAQI
22nd Jul 20262312 PMAQI
22nd Jul 2026251 PMAQI
22nd Jul 2026252 PMAQI
22nd Jul 2026253 PMAQI
22nd Jul 2026334 PMAQI
22nd Jul 2026225 PMAQI
22nd Jul 2026256 PMAQI
22nd Jul 2026167 PMAQI
22nd Jul 2026228 PMAQI
22nd Jul 2026149 PMAQI
22nd Jul 20262410 PMAQI
22nd Jul 20261911 PMAQI
23rd Jul 20261912 AMAQI
23rd Jul 2026251 AMAQI
23rd Jul 2026462 AMAQI
23rd Jul 2026323 AMAQI
23rd Jul 2026254 AMAQI
19°C14/23°C
23rd Jul 2026205 AMAQI
23rd Jul 2026226 AMAQI
23rd Jul 2026157 AMAQI
23rd Jul 202688 AMAQI
23rd Jul 202689 AMAQI
23rd Jul 20261810 AMAQI
23rd Jul 2026811 AMAQI
23rd Jul 20262412 PMAQI
23rd Jul 202681 PMAQI
23rd Jul 2026222 PMAQI
23rd Jul 2026183 PMAQI
23rd Jul 2026254 PMAQI
23rd Jul 2026425 PMAQI
23rd Jul 2026446 PMAQI
23rd Jul 2026627 PMAQI
23rd Jul 2026248 PMAQI
23rd Jul 2026249 PMAQI
23rd Jul 20262510 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20262512 AMAQI
24th Jul 2026291 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026363 AMAQI
24th Jul 2026264 AMAQI
18°C11/27°C
24th Jul 2026255 AMAQI
24th Jul 2026256 AMAQI
24th Jul 2026367 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20262310 AMAQI
24th Jul 20262111 AMAQI
24th Jul 20262612 PMAQI
24th Jul 2026301 PMAQI
24th Jul 2026252 PMAQI
24th Jul 2026363 PMAQI
24th Jul 2026274 PMAQI
24th Jul 2026215 PMAQI
24th Jul 2026346 PMAQI
24th Jul 2026257 PMAQI
24th Jul 2026388 PMAQI
24th Jul 2026449 PMAQI
24th Jul 20264210 PMAQI
24th Jul 20264611 PMAQI
25th Jul 20264612 AMAQI
25th Jul 2026501 AMAQI
25th Jul 2026502 AMAQI
25th Jul 2026463 AMAQI
25th Jul 2026484 AMAQI
22°C15/29°C
25th Jul 2026505 AMAQI
25th Jul 2026486 AMAQI
25th Jul 2026507 AMAQI
25th Jul 2026498 AMAQI
25th Jul 2026519 AMAQI
25th Jul 20265010 AMAQI
25th Jul 20264811 AMAQI
25th Jul 20264412 PMAQI
25th Jul 2026401 PMAQI
25th Jul 2026402 PMAQI
25th Jul 2026293 PMAQI
25th Jul 2026404 PMAQI
25th Jul 2026235 PMAQI
25th Jul 2026216 PMAQI
25th Jul 2026277 PMAQI
25th Jul 2026278 PMAQI
25th Jul 2026319 PMAQI
25th Jul 20263110 PMAQI
25th Jul 20263611 PMAQI
26th Jul 20263612 AMAQI
26th Jul 2026461 AMAQI
26th Jul 2026502 AMAQI
26th Jul 2026463 AMAQI
26th Jul 2026484 AMAQI
23°C16/32°C
26th Jul 2026445 AMAQI
26th Jul 2026466 AMAQI
26th Jul 2026467 AMAQI
26th Jul 2026468 AMAQI
26th Jul 2026429 AMAQI
26th Jul 20264610 AMAQI
26th Jul 20264611 AMAQI
26th Jul 20264612 PMAQI
26th Jul 2026441 PMAQI
26th Jul 2026462 PMAQI
26th Jul 2026423 PMAQI
26th Jul 2026404 PMAQI
26th Jul 2026405 PMAQI
26th Jul 2026406 PMAQI
26th Jul 2026297 PMAQI
26th Jul 2026318 PMAQI
26th Jul 2026299 PMAQI
26th Jul 20262910 PMAQI
26th Jul 20263111 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026272 AMAQI
27th Jul 2026273 AMAQI
27th Jul 2026384 AMAQI
24°C17/32°C
27th Jul 2026275 AMAQI
27th Jul 2026286 AMAQI
27th Jul 2026387 AMAQI
27th Jul 2026388 AMAQI
27th Jul 2026409 AMAQI
27th Jul 20264210 AMAQI
27th Jul 20264211 AMAQI
27th Jul 20264212 PMAQI
27th Jul 2026441 PMAQI
27th Jul 2026462 PMAQI
27th Jul 2026423 PMAQI
27th Jul 2026464 PMAQI
27th Jul 2026445 PMAQI
27th Jul 2026446 PMAQI
27th Jul 2026467 PMAQI
27th Jul 2026448 PMAQI
27th Jul 2026489 PMAQI
27th Jul 20265010 PMAQI
27th Jul 20265011 PMAQI
28th Jul 20265112 AMAQI
28th Jul 2026501 AMAQI
28th Jul 2026442 AMAQI
28th Jul 2026483 AMAQI
28th Jul 2026484 AMAQI
25°C18/33°C
28th Jul 2026515 AMAQI
28th Jul 2026526 AMAQI
28th Jul 2026497 AMAQI
28th Jul 2026518 AMAQI
28th Jul 2026539 AMAQI
28th Jul 20265110 AMAQI
28th Jul 20264811 AMAQI
28th Jul 20265212 PMAQI
28th Jul 2026531 PMAQI
28th Jul 2026532 PMAQI
28th Jul 2026533 PMAQI
28th Jul 2026554 PMAQI
28th Jul 2026535 PMAQI
28th Jul 2026566 PMAQI
28th Jul 2026577 PMAQI
28th Jul 2026568 PMAQI
28th Jul 2026549 PMAQI
28th Jul 20265110 PMAQI
28th Jul 20265211 PMAQI
29th Jul 20265212 AMAQI
29th Jul 2026481 AMAQI
29th Jul 2026512 AMAQI
29th Jul 2026483 AMAQI
29th Jul 2026424 AMAQI
22°C18/29°C
29th Jul 2026385 AMAQI
29th Jul 2026386 AMAQI
29th Jul 2026327 AMAQI
29th Jul 2026348 AMAQI
29th Jul 2026349 AMAQI
29th Jul 20263210 AMAQI
29th Jul 20263211 AMAQI
29th Jul 20263412 PMAQI
29th Jul 2026381 PMAQI
29th Jul 2026382 PMAQI
29th Jul 2026443 PMAQI
29th Jul 2026254 PMAQI
29th Jul 2026365 PMAQI
29th Jul 2026406 PMAQI
29th Jul 2026407 PMAQI
29th Jul 2026408 PMAQI
29th Jul 2026429 PMAQI
29th Jul 20263810 PMAQI
29th Jul 20264011 PMAQI
30th Jul 20264212 AMAQI
30th Jul 2026401 AMAQI
30th Jul 2026402 AMAQI
30th Jul 2026423 AMAQI
30th Jul 2026344 AMAQI
22°C19/27°C
30th Jul 2026215 AMAQI
30th Jul 2026246 AMAQI
30th Jul 2026237 AMAQI
30th Jul 2026368 AMAQI
30th Jul 2026449 AMAQI
30th Jul 20264210 AMAQI
30th Jul 20264211 AMAQI
30th Jul 20264412 PMAQI
30th Jul 2026401 PMAQI
30th Jul 2026272 PMAQI
30th Jul 2026293 PMAQI
30th Jul 2026274 PMAQI
30th Jul 2026195 PMAQI
30th Jul 2026256 PMAQI
30th Jul 2026387 PMAQI
30th Jul 2026388 PMAQI
30th Jul 2026409 PMAQI
30th Jul 20262310 PMAQI
30th Jul 20264011 PMAQI
31st Jul 20265012 AMAQI
31st Jul 2026521 AMAQI
31st Jul 2026442 AMAQI
31st Jul 2026463 AMAQI
31st Jul 2026424 AMAQI
22°C18/27°C
31st Jul 2026405 AMAQI
31st Jul 2026406 AMAQI
31st Jul 2026387 AMAQI
31st Jul 2026498 AMAQI
31st Jul 2026549 AMAQI
31st Jul 20265610 AMAQI
31st Jul 20265711 AMAQI
31st Jul 20265912 PMAQI
31st Jul 2026581 PMAQI
31st Jul 2026562 PMAQI
31st Jul 2026533 PMAQI
31st Jul 2026514 PMAQI
31st Jul 2026495 PMAQI
31st Jul 2026526 PMAQI
31st Jul 2026467 PMAQI
31st Jul 2026428 PMAQI
31st Jul 2026449 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20265111 PMAQI
1st Aug 20264412 AMAQI
1st Aug 2026481 AMAQI
1st Aug 2026502 AMAQI
1st Aug 2026483 AMAQI
1st Aug 2026444 AMAQI
23°C18/29°C
1st Aug 2026445 AMAQI
1st Aug 2026466 AMAQI
1st Aug 2026447 AMAQI
1st Aug 2026388 AMAQI
1st Aug 2026409 AMAQI
1st Aug 20263610 AMAQI
1st Aug 20264211 AMAQI
1st Aug 20264012 PMAQI
1st Aug 2026401 PMAQI
1st Aug 2026422 PMAQI
1st Aug 2026363 PMAQI
1st Aug 2026324 PMAQI
1st Aug 2026365 PMAQI
1st Aug 2026256 PMAQI
1st Aug 2026487 PMAQI
1st Aug 2026528 PMAQI
1st Aug 2026479 PMAQI
1st Aug 20263810 PMAQI
1st Aug 20264411 PMAQI
2nd Aug 20264212 AMAQI
2nd Aug 2026421 AMAQI
2nd Aug 2026442 AMAQI
2nd Aug 2026443 AMAQI
2nd Aug 2026464 AMAQI
24°C19/30°C
2nd Aug 2026425 AMAQI
2nd Aug 2026486 AMAQI
2nd Aug 2026467 AMAQI
2nd Aug 2026488 AMAQI
2nd Aug 2026469 AMAQI
2nd Aug 20264210 AMAQI
2nd Aug 20264611 AMAQI
2nd Aug 20264412 PMAQI
2nd Aug 2026461 PMAQI
2nd Aug 2026442 PMAQI
2nd Aug 2026443 PMAQI
2nd Aug 2026424 PMAQI
2nd Aug 2026445 PMAQI
2nd Aug 2026426 PMAQI
2nd Aug 2026407 PMAQI
2nd Aug 2026408 PMAQI
2nd Aug 2026429 PMAQI
2nd Aug 20264410 PMAQI
2nd Aug 20264011 PMAQI
3rd Aug 20262512 AMAQI
3rd Aug 2026231 AMAQI
3rd Aug 2026252 AMAQI
3rd Aug 2026253 AMAQI
3rd Aug 2026324 AMAQI
24°C20/30°C
3rd Aug 2026385 AMAQI
3rd Aug 2026386 AMAQI
3rd Aug 2026387 AMAQI
3rd Aug 2026328 AMAQI
3rd Aug 2026329 AMAQI
3rd Aug 20263210 AMAQI
3rd Aug 20263611 AMAQI
3rd Aug 20264612 PMAQI
3rd Aug 2026461 PMAQI
3rd Aug 2026402 PMAQI
3rd Aug 2026363 PMAQI
3rd Aug 2026364 PMAQI
3rd Aug 2026205 PMAQI
3rd Aug 2026146 PMAQI
3rd Aug 2026227 PMAQI
3rd Aug 2026248 PMAQI
3rd Aug 2026229 PMAQI
3rd Aug 20262010 PMAQI
3rd Aug 20265411 PMAQI
4th Aug 20265012 AMAQI
4th Aug 2026281 AMAQI
4th Aug 2026212 AMAQI
4th Aug 2026523 AMAQI
4th Aug 2026444 AMAQI
21°C18/26°C
4th Aug 2026505 AMAQI
4th Aug 2026726 AMAQI
4th Aug 2026587 AMAQI
4th Aug 2026538 AMAQI
4th Aug 2026249 AMAQI
4th Aug 20262810 AMAQI
4th Aug 20263611 AMAQI
4th Aug 20264012 PMAQI
4th Aug 2026241 PMAQI
4th Aug 2026242 PMAQI
4th Aug 2026633 PMAQI
4th Aug 2026234 PMAQI
4th Aug 2026295 PMAQI
4th Aug 2026306 PMAQI
4th Aug 2026337 PMAQI
4th Aug 2026348 PMAQI
4th Aug 2026289 PMAQI
4th Aug 20262410 PMAQI
4th Aug 20264211 PMAQI
5th Aug 20264412 AMAQI
5th Aug 2026301 AMAQI
5th Aug 2026462 AMAQI
5th Aug 2026253 AMAQI
5th Aug 2026254 AMAQI
22°C16/29°C
5th Aug 2026275 AMAQI
5th Aug 2026386 AMAQI
5th Aug 2026427 AMAQI
5th Aug 2026238 AMAQI
5th Aug 2026299 AMAQI
5th Aug 20263610 AMAQI
5th Aug 20263211 AMAQI
5th Aug 20265412 PMAQI
5th Aug 2026361 PMAQI
5th Aug 2026542 PMAQI
5th Aug 2026213 PMAQI
5th Aug 2026334 PMAQI
5th Aug 2026315 PMAQI
5th Aug 2026526 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026508 PMAQI
5th Aug 2026539 PMAQI
5th Aug 20264010 PMAQI
5th Aug 20265111 PMAQI
6th Aug 20262712 AMAQI
6th Aug 2026421 AMAQI
6th Aug 2026272 AMAQI
6th Aug 2026403 AMAQI
6th Aug 2026514 AMAQI
24°C17/31°C
6th Aug 2026425 AMAQI
5 AM6th Aug 2026516 AMAQI
6th Aug 2026537 AMAQI
6th Aug 2026528 AMAQI
6th Aug 2026529 AMAQI
6th Aug 20265110 AMAQI
6th Aug 20264411 AMAQI
6th Aug 20264012 PMAQI
12 PM6th Aug 2026541 PMAQI
6th Aug 2026402 PMAQI
6th Aug 2026383 PMAQI
6th Aug 2026404 PMAQI
6th Aug 2026405 PMAQI
6th Aug 2026246 PMAQI
6th Aug 2026347 PMAQI
6th Aug 2026368 PMAQI
8 PM6th Aug 2026489 PMAQI
6th Aug 20264910 PMAQI
6th Aug 20264611 PMAQI
12 AM
4 AM
25°C19/31°C
Day time
Avg. Highest Time
6 AM - 1 PM
38AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
5 PM - 7 PM
35AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 1 PM (Avg. 38), while the lowest AQI was between 5 PM to 7 PM (Avg. 35).
Night time
Avg. Highest Time
12 AM - 9 PM
37AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
10 PM
35AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 9 PM (Avg. 37), while the lowest AQI was between 10 PM to 10 PM (Avg. 35).
2026 Days Vs Air Quality
Ontario, Montreal, Quebec, Canada
2026
93%
201
7%
14
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Good
201 DaysModerate
14 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 218 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
Ontario, Montreal, Quebec, 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
16AQI (US)
16AQI (US)
2nd January 2026
25AQI (US)
25AQI (US)
3rd January 2026
17AQI (US)
17AQI (US)
4th January 2026
34AQI (US)
34AQI (US)
5th January 2026
37AQI (US)
37AQI (US)
6th January 2026
59AQI (US)
59AQI (US)
7th January 2026
57AQI (US)
57AQI (US)
8th January 2026
62AQI (US)
62AQI (US)
9th January 2026
41AQI (US)
41AQI (US)
10th January 2026
16AQI (US)
16AQI (US)
11th January 2026
17AQI (US)
17AQI (US)
12th January 2026
16AQI (US)
16AQI (US)
13th January 2026
45AQI (US)
45AQI (US)
14th January 2026
39AQI (US)
39AQI (US)
15th January 2026
31AQI (US)
31AQI (US)
16th January 2026
14AQI (US)
14AQI (US)
17th January 2026
36AQI (US)
36AQI (US)
18th January 2026
31AQI (US)
31AQI (US)
19th January 2026
37AQI (US)
37AQI (US)
20th January 2026
19AQI (US)
19AQI (US)
21st January 2026
24AQI (US)
24AQI (US)
22nd January 2026
49AQI (US)
49AQI (US)
23rd January 2026
54AQI (US)
54AQI (US)
24th January 2026
48AQI (US)
48AQI (US)
25th January 2026
45AQI (US)
45AQI (US)
26th January 2026
48AQI (US)
48AQI (US)
27th January 2026
44AQI (US)
44AQI (US)
28th January 2026
47AQI (US)
47AQI (US)
29th January 2026
51AQI (US)
51AQI (US)
30th January 2026
49AQI (US)
49AQI (US)
31st January 2026
45AQI (US)
45AQI (US)
1st February 2026
47AQI (US)
47AQI (US)
2nd February 2026
49AQI (US)
49AQI (US)
3rd February 2026
51AQI (US)
51AQI (US)
4th February 2026
53AQI (US)
53AQI (US)
5th February 2026
49AQI (US)
49AQI (US)
6th February 2026
41AQI (US)
41AQI (US)
7th February 2026
38AQI (US)
38AQI (US)
8th February 2026
45AQI (US)
45AQI (US)
9th February 2026
46AQI (US)
46AQI (US)
10th February 2026
46AQI (US)
46AQI (US)
11th February 2026
45AQI (US)
45AQI (US)
12th February 2026
42AQI (US)
42AQI (US)
13th February 2026
51AQI (US)
51AQI (US)
14th February 2026
48AQI (US)
48AQI (US)
15th February 2026
40AQI (US)
40AQI (US)
16th February 2026
43AQI (US)
43AQI (US)
17th February 2026
44AQI (US)
44AQI (US)
18th February 2026
43AQI (US)
43AQI (US)
19th February 2026
40AQI (US)
40AQI (US)
20th February 2026
41AQI (US)
41AQI (US)
21st February 2026
35AQI (US)
35AQI (US)
22nd February 2026
35AQI (US)
35AQI (US)
23rd February 2026
40AQI (US)
40AQI (US)
24th February 2026
44AQI (US)
44AQI (US)
25th February 2026
42AQI (US)
42AQI (US)
26th February 2026
35AQI (US)
35AQI (US)
27th February 2026
35AQI (US)
35AQI (US)
28th February 2026
39AQI (US)
39AQI (US)
1st March 2026
40AQI (US)
40AQI (US)
2nd March 2026
53AQI (US)
53AQI (US)
3rd March 2026
47AQI (US)
47AQI (US)
4th March 2026
45AQI (US)
45AQI (US)
5th March 2026
42AQI (US)
42AQI (US)
6th March 2026
37AQI (US)
37AQI (US)
7th March 2026
40AQI (US)
40AQI (US)
8th March 2026
39AQI (US)
39AQI (US)
9th March 2026
41AQI (US)
41AQI (US)
10th March 2026
33AQI (US)
33AQI (US)
11th March 2026
44AQI (US)
44AQI (US)
12th March 2026
42AQI (US)
42AQI (US)
13th March 2026
39AQI (US)
39AQI (US)
14th March 2026
37AQI (US)
37AQI (US)
15th March 2026
35AQI (US)
35AQI (US)
16th March 2026
37AQI (US)
37AQI (US)
17th March 2026
34AQI (US)
34AQI (US)
18th March 2026
32AQI (US)
32AQI (US)
19th March 2026
31AQI (US)
31AQI (US)
20th March 2026
36AQI (US)
36AQI (US)
21st March 2026
36AQI (US)
36AQI (US)
22nd March 2026
36AQI (US)
36AQI (US)
23rd March 2026
42AQI (US)
42AQI (US)
24th March 2026
36AQI (US)
36AQI (US)
25th March 2026
33AQI (US)
33AQI (US)
26th March 2026
27AQI (US)
27AQI (US)
27th March 2026
29AQI (US)
29AQI (US)
28th March 2026
34AQI (US)
34AQI (US)
29th March 2026
30AQI (US)
30AQI (US)
30th March 2026
28AQI (US)
28AQI (US)
31st March 2026
24AQI (US)
24AQI (US)
1st April 2026
32AQI (US)
32AQI (US)
2nd April 2026
32AQI (US)
32AQI (US)
3rd April 2026
28AQI (US)
28AQI (US)
4th April 2026
32AQI (US)
32AQI (US)
5th April 2026
30AQI (US)
30AQI (US)
6th April 2026
28AQI (US)
28AQI (US)
7th April 2026
26AQI (US)
26AQI (US)
8th April 2026
31AQI (US)
31AQI (US)
9th April 2026
27AQI (US)
27AQI (US)
10th April 2026
30AQI (US)
30AQI (US)
11th April 2026
32AQI (US)
32AQI (US)
12th April 2026
27AQI (US)
27AQI (US)
13th April 2026
33AQI (US)
33AQI (US)
14th April 2026
33AQI (US)
33AQI (US)
15th April 2026
32AQI (US)
32AQI (US)
16th April 2026
29AQI (US)
29AQI (US)
17th April 2026
18th April 2026
32AQI (US)
32AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
29AQI (US)
29AQI (US)
21st April 2026
27AQI (US)
27AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
23AQI (US)
24th April 2026
27AQI (US)
27AQI (US)
25th April 2026
29AQI (US)
29AQI (US)
26th April 2026
33AQI (US)
33AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
24AQI (US)
24AQI (US)
29th April 2026
23AQI (US)
23AQI (US)
30th April 2026
26AQI (US)
26AQI (US)
1st May 2026
26AQI (US)
26AQI (US)
2nd May 2026
24AQI (US)
24AQI (US)
3rd May 2026
20AQI (US)
20AQI (US)
4th May 2026
30AQI (US)
30AQI (US)
5th May 2026
32AQI (US)
32AQI (US)
6th May 2026
30AQI (US)
30AQI (US)
7th May 2026
28AQI (US)
28AQI (US)
8th May 2026
28AQI (US)
28AQI (US)
9th May 2026
10th May 2026
33AQI (US)
33AQI (US)
11th May 2026
32AQI (US)
32AQI (US)
12th May 2026
28AQI (US)
28AQI (US)
13th May 2026
28AQI (US)
28AQI (US)
14th May 2026
24AQI (US)
24AQI (US)
15th May 2026
46AQI (US)
46AQI (US)
16th May 2026
52AQI (US)
52AQI (US)
17th May 2026
56AQI (US)
56AQI (US)
18th May 2026
57AQI (US)
57AQI (US)
19th May 2026
54AQI (US)
54AQI (US)
20th May 2026
49AQI (US)
49AQI (US)
21st May 2026
44AQI (US)
44AQI (US)
22nd May 2026
44AQI (US)
44AQI (US)
23rd May 2026
50AQI (US)
50AQI (US)
24th May 2026
47AQI (US)
47AQI (US)
25th May 2026
45AQI (US)
45AQI (US)
26th May 2026
29AQI (US)
29AQI (US)
27th May 2026
26AQI (US)
26AQI (US)
28th May 2026
18AQI (US)
18AQI (US)
29th May 2026
19AQI (US)
19AQI (US)
30th May 2026
19AQI (US)
19AQI (US)
31st May 2026
27AQI (US)
27AQI (US)
1st June 2026
27AQI (US)
27AQI (US)
2nd June 2026
24AQI (US)
24AQI (US)
3rd June 2026
22AQI (US)
22AQI (US)
4th June 2026
24AQI (US)
24AQI (US)
5th June 2026
28AQI (US)
28AQI (US)
6th June 2026
25AQI (US)
25AQI (US)
7th June 2026
20AQI (US)
20AQI (US)
8th June 2026
25AQI (US)
25AQI (US)
9th June 2026
24AQI (US)
24AQI (US)
10th June 2026
27AQI (US)
27AQI (US)
11th June 2026
25AQI (US)
25AQI (US)
12th June 2026
26AQI (US)
26AQI (US)
13th June 2026
22AQI (US)
22AQI (US)
14th June 2026
23AQI (US)
23AQI (US)
15th June 2026
24AQI (US)
24AQI (US)
16th June 2026
26AQI (US)
26AQI (US)
17th June 2026
26AQI (US)
26AQI (US)
18th June 2026
26AQI (US)
26AQI (US)
19th June 2026
23AQI (US)
23AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
24AQI (US)
24AQI (US)
23rd June 2026
22AQI (US)
22AQI (US)
24th June 2026
23AQI (US)
23AQI (US)
25th June 2026
25AQI (US)
25AQI (US)
26th June 2026
27AQI (US)
27AQI (US)
27th June 2026
29AQI (US)
29AQI (US)
28th June 2026
28AQI (US)
28AQI (US)
29th June 2026
26AQI (US)
26AQI (US)
30th June 2026
26AQI (US)
26AQI (US)
1st July 2026
26AQI (US)
26AQI (US)
2nd July 2026
27AQI (US)
27AQI (US)
3rd July 2026
28AQI (US)
28AQI (US)
4th July 2026
26AQI (US)
26AQI (US)
5th July 2026
27AQI (US)
27AQI (US)
6th July 2026
29AQI (US)
29AQI (US)
7th July 2026
30AQI (US)
30AQI (US)
8th July 2026
27AQI (US)
27AQI (US)
9th July 2026
29AQI (US)
29AQI (US)
10th July 2026
32AQI (US)
32AQI (US)
11th July 2026
31AQI (US)
31AQI (US)
12th July 2026
33AQI (US)
33AQI (US)
13th July 2026
33AQI (US)
33AQI (US)
14th July 2026
33AQI (US)
33AQI (US)
15th July 2026
37AQI (US)
37AQI (US)
16th July 2026
37AQI (US)
37AQI (US)
17th July 2026
35AQI (US)
35AQI (US)
18th July 2026
47AQI (US)
47AQI (US)
19th July 2026
42AQI (US)
42AQI (US)
20th July 2026
39AQI (US)
39AQI (US)
21st July 2026
42AQI (US)
42AQI (US)
22nd July 2026
29AQI (US)
29AQI (US)
23rd July 2026
25AQI (US)
25AQI (US)
24th July 2026
30AQI (US)
30AQI (US)
25th July 2026
41AQI (US)
41AQI (US)
26th July 2026
41AQI (US)
41AQI (US)
27th July 2026
40AQI (US)
40AQI (US)
28th July 2026
52AQI (US)
52AQI (US)
29th July 2026
39AQI (US)
39AQI (US)
30th July 2026
34AQI (US)
34AQI (US)
31st July 2026
49AQI (US)
49AQI (US)
1st August 2026
42AQI (US)
42AQI (US)
2nd August 2026
44AQI (US)
44AQI (US)
3rd August 2026
32AQI (US)
32AQI (US)
4th August 2026
38AQI (US)
38AQI (US)
5th August 2026
37AQI (US)
37AQI (US)
6th August 2026
43AQI (US)
43AQI (US)
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
37AQI (US)
43AQI (US)
37AQI (US)
29AQI (US)
35AQI (US)
25AQI (US)
35AQI (US)
39AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202634AQI (US)
26
5
25
3
30
1
28
26
4
30
30
1
6
201
14
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202532AQI (US)
30
1
23
5
27
4
30
31
23
7
26
5
23
8
30
26
5
27
3
26
5
322
43
Highest AQI (US) recorded in
July40AQI (US)
Lowest AQI (US) recorded in
May23AQI (US)
202430AQI (US)
19
2
15
6
26
2
23
25
1
26
4
29
2
21
9
17
2
31
30
26
5
288
33
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
November24AQI (US)
202336AQI (US)
15
4
13
3
17
15
22
3
1
15
2
2
2
14
7
1
15
4
17
7
25
22
16
7
206
37
4
2
Highest AQI (US) recorded in
June55AQI (US)
Lowest AQI (US) recorded in
November25AQI (US)
202232AQI (US)
12
6
12
3
23
3
12
22
3
21
2
10
1
3
26
25
2
13
4
21
4
200
28
Highest AQI (US) recorded in
January45AQI (US)
Lowest AQI (US) recorded in
September24AQI (US)
202130AQI (US)
24
5
17
7
23
2
24
2
19
6
16
2
18
3
16
3
22
18
3
20
3
19
2
236
38
Highest AQI (US) recorded in
February37AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
202024AQI (US)
6
18
12
12
27
19
20
2
20
1
18
6
20
172
9
Highest AQI (US) recorded in
November31AQI (US)
Lowest AQI (US) recorded in
December17AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
36AQI (US)Least Polluted Year Recorded
2020(Avg.)
24AQI (US)Ontario's annual 2026 AQI (US) (34) shows an average percentage change of 12.5% (worsened AQI (US)) compared to previous years: 2020 (24), 2021 (30), 2022 (32), 2023 (36), 2024 (30), 2025 (32).
