Rue Sainte-Catherine Est, 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
Rue Sainte-Catherine Est, Montreal, Quebec, Canada
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
74AQILowest AQI recorded on
26th Aug 2025
15AQISame Day Analysis (14th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 2nd highest AQI at 26 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 13th Aug - 14th Aug 2026
Rue Sainte-Catherine Est, Montreal, Quebec, Canada
AQI
Day
Night
.
5 AM13th Aug 2026
8 PM
4 AM14th Aug 2026
Day time
Avg. Highest Time
11AM13th Aug
42AQI
Avg. Lowest Time
12PM13th Aug
22AQI
Night time
Avg. Highest Time
2AM14th Aug
30AQI
Avg. Lowest Time
4AM14th Aug
22AQI
In the last 24 hours,
Rue Sainte-Catherine Est's AQI reached its highest point of 42 at 11 AM during the Day, while the lowest point, 22, was recorded at 4 AM during the Night between 13th Aug and 14th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Rue Sainte-Catherine Est, Montreal, Quebec, Canada
JulAug
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
16th Jul 2026315 AMAQI
16th Jul 2026306 AMAQI
16th Jul 2026517 AMAQI
16th Jul 2026528 AMAQI
16th Jul 2026589 AMAQI
16th Jul 20266010 AMAQI
16th Jul 20266611 AMAQI
16th Jul 20263212 PMAQI
16th Jul 2026581 PMAQI
16th Jul 2026312 PMAQI
16th Jul 2026383 PMAQI
16th Jul 2026294 PMAQI
16th Jul 2026295 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026267 PMAQI
16th Jul 2026288 PMAQI
16th Jul 2026309 PMAQI
16th Jul 20263010 PMAQI
16th Jul 20263011 PMAQI
17th Jul 20262812 AMAQI
17th Jul 2026261 AMAQI
17th Jul 2026252 AMAQI
17th Jul 2026273 AMAQI
17th Jul 2026364 AMAQI
21°C16/28°C
17th Jul 2026365 AMAQI
17th Jul 2026446 AMAQI
17th Jul 2026487 AMAQI
17th Jul 2026468 AMAQI
17th Jul 2026279 AMAQI
17th Jul 20262710 AMAQI
17th Jul 20264811 AMAQI
17th Jul 20263412 PMAQI
17th Jul 2026471 PMAQI
17th Jul 2026322 PMAQI
17th Jul 2026343 PMAQI
17th Jul 2026244 PMAQI
17th Jul 2026215 PMAQI
17th Jul 2026256 PMAQI
17th Jul 2026297 PMAQI
17th Jul 2026388 PMAQI
17th Jul 2026449 PMAQI
17th Jul 20264210 PMAQI
17th Jul 20263211 PMAQI
18th Jul 20263612 AMAQI
18th Jul 2026271 AMAQI
18th Jul 2026232 AMAQI
18th Jul 2026273 AMAQI
18th Jul 2026384 AMAQI
20°C13/29°C
18th Jul 2026345 AMAQI
18th Jul 2026346 AMAQI
18th Jul 2026387 AMAQI
18th Jul 2026268 AMAQI
18th Jul 2026369 AMAQI
18th Jul 20263210 AMAQI
18th Jul 20262911 AMAQI
18th Jul 20262312 PMAQI
18th Jul 2026231 PMAQI
18th Jul 2026312 PMAQI
18th Jul 2026463 PMAQI
18th Jul 2026424 PMAQI
18th Jul 2026605 PMAQI
18th Jul 2026646 PMAQI
18th Jul 2026647 PMAQI
18th Jul 2026678 PMAQI
18th Jul 2026589 PMAQI
18th Jul 20266810 PMAQI
18th Jul 20267611 PMAQI
19th Jul 20266712 AMAQI
19th Jul 2026661 AMAQI
19th Jul 2026422 AMAQI
19th Jul 2026443 AMAQI
19th Jul 2026344 AMAQI
19°C17/21°C
19th Jul 2026385 AMAQI
19th Jul 2026466 AMAQI
19th Jul 2026317 AMAQI
19th Jul 2026488 AMAQI
19th Jul 2026429 AMAQI
19th Jul 20263610 AMAQI
19th Jul 20262911 AMAQI
19th Jul 20263812 PMAQI
19th Jul 2026421 PMAQI
19th Jul 2026622 PMAQI
19th Jul 2026733 PMAQI
19th Jul 2026714 PMAQI
19th Jul 2026515 PMAQI
19th Jul 2026516 PMAQI
19th Jul 2026227 PMAQI
19th Jul 2026288 PMAQI
19th Jul 2026279 PMAQI
19th Jul 20262710 PMAQI
19th Jul 20262211 PMAQI
20th Jul 20266712 AMAQI
20th Jul 2026621 AMAQI
20th Jul 2026682 AMAQI
20th Jul 2026643 AMAQI
20th Jul 2026664 AMAQI
19°C14/25°C
20th Jul 2026425 AMAQI
20th Jul 2026546 AMAQI
20th Jul 2026507 AMAQI
20th Jul 2026288 AMAQI
20th Jul 2026289 AMAQI
20th Jul 20262610 AMAQI
20th Jul 20262711 AMAQI
20th Jul 20262912 PMAQI
20th Jul 2026241 PMAQI
20th Jul 2026442 PMAQI
20th Jul 2026343 PMAQI
20th Jul 2026274 PMAQI
20th Jul 2026255 PMAQI
20th Jul 2026386 PMAQI
20th Jul 2026237 PMAQI
20th Jul 2026348 PMAQI
20th Jul 2026389 PMAQI
20th Jul 20263210 PMAQI
21st Jul 20264212 AMAQI
21st Jul 2026341 AMAQI
21st Jul 2026252 AMAQI
21st Jul 2026233 AMAQI
21st Jul 2026324 AMAQI
21°C14/30°C
21st Jul 2026465 AMAQI
21st Jul 2026426 AMAQI
21st Jul 2026467 AMAQI
21st Jul 2026338 AMAQI
21st Jul 2026299 AMAQI
21st Jul 20263610 AMAQI
21st Jul 20263111 AMAQI
21st Jul 20262912 PMAQI
21st Jul 2026441 PMAQI
21st Jul 2026502 PMAQI
21st Jul 2026533 PMAQI
21st Jul 2026534 PMAQI
21st Jul 2026525 PMAQI
21st Jul 2026516 PMAQI
21st Jul 2026467 PMAQI
21st Jul 2026448 PMAQI
21st Jul 2026489 PMAQI
21st Jul 20264410 PMAQI
21st Jul 20263811 PMAQI
22nd Jul 20264012 AMAQI
22nd Jul 2026401 AMAQI
22nd Jul 2026422 AMAQI
22nd Jul 2026403 AMAQI
22nd Jul 2026384 AMAQI
23°C18/30°C
22nd Jul 2026335 AMAQI
22nd Jul 2026386 AMAQI
22nd Jul 2026277 AMAQI
22nd Jul 2026218 AMAQI
22nd Jul 2026259 AMAQI
22nd Jul 20262810 AMAQI
22nd Jul 20262111 AMAQI
22nd Jul 20262112 PMAQI
22nd Jul 2026231 PMAQI
22nd Jul 2026252 PMAQI
22nd Jul 2026233 PMAQI
22nd Jul 2026334 PMAQI
22nd Jul 2026225 PMAQI
22nd Jul 2026256 PMAQI
22nd Jul 2026167 PMAQI
22nd Jul 2026248 PMAQI
22nd Jul 2026179 PMAQI
22nd Jul 20262110 PMAQI
22nd Jul 20261411 PMAQI
23rd Jul 20261812 AMAQI
23rd Jul 2026211 AMAQI
23rd Jul 2026462 AMAQI
23rd Jul 2026303 AMAQI
23rd Jul 2026254 AMAQI
19°C14/22°C
23rd Jul 2026205 AMAQI
23rd Jul 2026226 AMAQI
23rd Jul 2026167 AMAQI
23rd Jul 202688 AMAQI
23rd Jul 202689 AMAQI
23rd Jul 20261810 AMAQI
23rd Jul 20261811 AMAQI
23rd Jul 20262612 PMAQI
23rd Jul 202681 PMAQI
23rd Jul 2026242 PMAQI
23rd Jul 2026183 PMAQI
23rd Jul 2026254 PMAQI
23rd Jul 2026425 PMAQI
23rd Jul 2026446 PMAQI
23rd Jul 2026647 PMAQI
23rd Jul 2026248 PMAQI
23rd Jul 2026249 PMAQI
23rd Jul 20262410 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
19°C11/27°C
24th Jul 2026255 AMAQI
24th Jul 2026256 AMAQI
24th Jul 2026367 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026289 AMAQI
24th Jul 20262410 AMAQI
24th Jul 20262111 AMAQI
24th Jul 20262612 PMAQI
24th Jul 2026301 PMAQI
24th Jul 2026252 PMAQI
24th Jul 2026363 PMAQI
24th Jul 2026284 PMAQI
24th Jul 2026225 PMAQI
24th Jul 2026346 PMAQI
24th Jul 2026257 PMAQI
24th Jul 2026388 PMAQI
24th Jul 2026409 PMAQI
24th Jul 20264010 PMAQI
24th Jul 20264411 PMAQI
25th Jul 20264212 AMAQI
25th Jul 2026461 AMAQI
25th Jul 2026512 AMAQI
25th Jul 2026483 AMAQI
25th Jul 2026514 AMAQI
22°C14/30°C
25th Jul 2026485 AMAQI
25th Jul 2026466 AMAQI
25th Jul 2026507 AMAQI
25th Jul 2026498 AMAQI
25th Jul 2026509 AMAQI
25th Jul 20264610 AMAQI
25th Jul 20264211 AMAQI
25th Jul 20264212 PMAQI
25th Jul 2026421 PMAQI
25th Jul 2026442 PMAQI
25th Jul 2026293 PMAQI
25th Jul 2026404 PMAQI
25th Jul 2026235 PMAQI
25th Jul 2026216 PMAQI
25th Jul 2026307 PMAQI
25th Jul 2026278 PMAQI
25th Jul 2026339 PMAQI
25th Jul 20262910 PMAQI
25th Jul 20263811 PMAQI
26th Jul 20263812 AMAQI
26th Jul 2026441 AMAQI
26th Jul 2026442 AMAQI
26th Jul 2026443 AMAQI
26th Jul 2026484 AMAQI
23°C16/32°C
26th Jul 2026425 AMAQI
26th Jul 2026466 AMAQI
26th Jul 2026507 AMAQI
26th Jul 2026448 AMAQI
26th Jul 2026429 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20264811 AMAQI
26th Jul 20264612 PMAQI
26th Jul 2026441 PMAQI
26th Jul 2026422 PMAQI
26th Jul 2026423 PMAQI
26th Jul 2026424 PMAQI
26th Jul 2026385 PMAQI
26th Jul 2026446 PMAQI
26th Jul 2026297 PMAQI
26th Jul 2026338 PMAQI
26th Jul 2026319 PMAQI
26th Jul 20262910 PMAQI
26th Jul 20262911 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026292 AMAQI
27th Jul 2026293 AMAQI
27th Jul 2026384 AMAQI
25°C17/33°C
27th Jul 2026315 AMAQI
27th Jul 2026296 AMAQI
27th Jul 2026467 AMAQI
27th Jul 2026408 AMAQI
27th Jul 2026429 AMAQI
27th Jul 20264210 AMAQI
27th Jul 20264411 AMAQI
27th Jul 20264212 PMAQI
27th Jul 2026421 PMAQI
27th Jul 2026422 PMAQI
27th Jul 2026403 PMAQI
27th Jul 2026444 PMAQI
27th Jul 2026445 PMAQI
27th Jul 2026446 PMAQI
27th Jul 2026447 PMAQI
27th Jul 2026448 PMAQI
27th Jul 2026429 PMAQI
27th Jul 20264610 PMAQI
27th Jul 20265011 PMAQI
28th Jul 20264812 AMAQI
28th Jul 2026481 AMAQI
28th Jul 2026462 AMAQI
28th Jul 2026483 AMAQI
28th Jul 2026484 AMAQI
24°C19/32°C
28th Jul 2026485 AMAQI
28th Jul 2026516 AMAQI
28th Jul 2026517 AMAQI
28th Jul 2026518 AMAQI
28th Jul 2026519 AMAQI
28th Jul 20264810 AMAQI
28th Jul 20264911 AMAQI
28th Jul 20264912 PMAQI
28th Jul 2026531 PMAQI
28th Jul 2026542 PMAQI
28th Jul 2026553 PMAQI
28th Jul 2026534 PMAQI
28th Jul 2026545 PMAQI
28th Jul 2026536 PMAQI
28th Jul 2026557 PMAQI
28th Jul 2026578 PMAQI
28th Jul 2026539 PMAQI
28th Jul 20265410 PMAQI
28th Jul 20265211 PMAQI
29th Jul 20265212 AMAQI
29th Jul 2026521 AMAQI
29th Jul 2026492 AMAQI
29th Jul 2026463 AMAQI
29th Jul 2026494 AMAQI
22°C18/27°C
29th Jul 2026365 AMAQI
29th Jul 2026366 AMAQI
29th Jul 2026347 AMAQI
29th Jul 2026368 AMAQI
29th Jul 2026349 AMAQI
29th Jul 20263410 AMAQI
29th Jul 20263211 AMAQI
29th Jul 20262912 PMAQI
29th Jul 2026361 PMAQI
29th Jul 2026382 PMAQI
29th Jul 2026443 PMAQI
29th Jul 2026234 PMAQI
29th Jul 2026375 PMAQI
29th Jul 2026266 PMAQI
29th Jul 2026387 PMAQI
29th Jul 2026428 PMAQI
29th Jul 2026389 PMAQI
29th Jul 20264010 PMAQI
29th Jul 20263611 PMAQI
30th Jul 20264212 AMAQI
30th Jul 2026441 AMAQI
30th Jul 2026402 AMAQI
30th Jul 2026423 AMAQI
30th Jul 2026364 AMAQI
22°C19/27°C
30th Jul 2026185 AMAQI
30th Jul 2026246 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026368 AMAQI
30th Jul 2026409 AMAQI
30th Jul 20263810 AMAQI
30th Jul 20264011 AMAQI
30th Jul 20264012 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 2026367 PMAQI
30th Jul 2026388 PMAQI
30th Jul 2026409 PMAQI
30th Jul 20262310 PMAQI
30th Jul 20264011 PMAQI
31st Jul 20265012 AMAQI
31st Jul 2026491 AMAQI
31st Jul 2026482 AMAQI
31st Jul 2026403 AMAQI
31st Jul 2026404 AMAQI
22°C19/27°C
31st Jul 2026385 AMAQI
31st Jul 2026406 AMAQI
31st Jul 2026427 AMAQI
31st Jul 2026488 AMAQI
31st Jul 2026549 AMAQI
31st Jul 20265410 AMAQI
31st Jul 20265811 AMAQI
31st Jul 20265512 PMAQI
31st Jul 2026541 PMAQI
31st Jul 2026542 PMAQI
31st Jul 2026533 PMAQI
31st Jul 2026534 PMAQI
31st Jul 2026485 PMAQI
31st Jul 2026526 PMAQI
31st Jul 2026447 PMAQI
31st Jul 2026448 PMAQI
31st Jul 2026429 PMAQI
31st Jul 20264410 PMAQI
31st Jul 20265011 PMAQI
1st Aug 20264612 AMAQI
1st Aug 2026481 AMAQI
1st Aug 2026482 AMAQI
1st Aug 2026463 AMAQI
1st Aug 2026444 AMAQI
23°C18/29°C
1st Aug 2026425 AMAQI
1st Aug 2026466 AMAQI
1st Aug 2026427 AMAQI
1st Aug 2026448 AMAQI
1st Aug 2026409 AMAQI
1st Aug 20264010 AMAQI
1st Aug 20264011 AMAQI
1st Aug 20264012 PMAQI
1st Aug 2026441 PMAQI
1st Aug 2026382 PMAQI
1st Aug 2026403 PMAQI
1st Aug 2026364 PMAQI
1st Aug 2026385 PMAQI
1st Aug 2026256 PMAQI
1st Aug 2026487 PMAQI
1st Aug 2026488 PMAQI
1st Aug 2026449 PMAQI
1st Aug 20263810 PMAQI
1st Aug 20264611 PMAQI
2nd Aug 20264412 AMAQI
2nd Aug 2026461 AMAQI
2nd Aug 2026442 AMAQI
2nd Aug 2026463 AMAQI
2nd Aug 2026444 AMAQI
24°C19/30°C
2nd Aug 2026445 AMAQI
2nd Aug 2026446 AMAQI
2nd Aug 2026447 AMAQI
2nd Aug 2026468 AMAQI
2nd Aug 2026449 AMAQI
2nd Aug 20264810 AMAQI
2nd Aug 20264211 AMAQI
2nd Aug 20264612 PMAQI
2nd Aug 2026461 PMAQI
2nd Aug 2026462 PMAQI
2nd Aug 2026443 PMAQI
2nd Aug 2026464 PMAQI
2nd Aug 2026445 PMAQI
2nd Aug 2026446 PMAQI
2nd Aug 2026447 PMAQI
2nd Aug 2026408 PMAQI
2nd Aug 2026449 PMAQI
2nd Aug 20264210 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°C20/29°C
3rd Aug 2026375 AMAQI
3rd Aug 2026386 AMAQI
3rd Aug 2026397 AMAQI
3rd Aug 2026328 AMAQI
3rd Aug 2026329 AMAQI
3rd Aug 20263410 AMAQI
3rd Aug 20263611 AMAQI
3rd Aug 20264612 PMAQI
3rd Aug 2026461 PMAQI
3rd Aug 2026402 PMAQI
3rd Aug 2026363 PMAQI
3rd Aug 2026344 PMAQI
3rd Aug 2026185 PMAQI
3rd Aug 2026146 PMAQI
3rd Aug 2026207 PMAQI
3rd Aug 2026248 PMAQI
3rd Aug 2026209 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°C17/25°C
4th Aug 2026515 AMAQI
4th Aug 2026726 AMAQI
4th Aug 2026587 AMAQI
4th Aug 2026538 AMAQI
4th Aug 2026239 AMAQI
4th Aug 20262910 AMAQI
4th Aug 20263111 AMAQI
4th Aug 20264012 PMAQI
4th Aug 2026261 PMAQI
4th Aug 2026222 PMAQI
4th Aug 2026633 PMAQI
4th Aug 2026234 PMAQI
4th Aug 2026295 PMAQI
4th Aug 2026276 PMAQI
4th Aug 2026387 PMAQI
4th Aug 2026348 PMAQI
4th Aug 2026299 PMAQI
4th Aug 20262210 PMAQI
4th Aug 20264211 PMAQI
5th Aug 20264412 AMAQI
5th Aug 2026301 AMAQI
5th Aug 2026462 AMAQI
5th Aug 2026253 AMAQI
5th Aug 2026364 AMAQI
22°C15/29°C
5th Aug 2026275 AMAQI
5th Aug 2026386 AMAQI
5th Aug 2026427 AMAQI
5th Aug 2026238 AMAQI
5th Aug 2026339 AMAQI
5th Aug 20263610 AMAQI
5th Aug 20263211 AMAQI
5th Aug 20265412 PMAQI
5th Aug 2026361 PMAQI
5th Aug 2026542 PMAQI
5th Aug 2026233 PMAQI
5th Aug 2026334 PMAQI
5th Aug 2026315 PMAQI
5th Aug 2026526 PMAQI
5th Aug 2026267 PMAQI
5th Aug 2026508 PMAQI
5th Aug 2026549 PMAQI
5th Aug 20264010 PMAQI
5th Aug 20265011 PMAQI
6th Aug 20262512 AMAQI
6th Aug 2026441 AMAQI
6th Aug 2026292 AMAQI
6th Aug 2026343 AMAQI
6th Aug 2026494 AMAQI
23°C17/31°C
6th Aug 2026445 AMAQI
6th Aug 2026526 AMAQI
6th Aug 2026447 AMAQI
6th Aug 2026538 AMAQI
6th Aug 2026469 AMAQI
6th Aug 20265310 AMAQI
6th Aug 20264411 AMAQI
6th Aug 20264412 PMAQI
6th Aug 2026541 PMAQI
6th Aug 2026392 PMAQI
6th Aug 2026383 PMAQI
6th Aug 2026264 PMAQI
6th Aug 2026465 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026277 PMAQI
6th Aug 2026388 PMAQI
6th Aug 2026389 PMAQI
6th Aug 20264610 PMAQI
6th Aug 20264611 PMAQI
7th Aug 20263412 AMAQI
7th Aug 2026441 AMAQI
7th Aug 2026382 AMAQI
7th Aug 2026273 AMAQI
7th Aug 2026264 AMAQI
24°C19/32°C
7th Aug 2026225 AMAQI
7th Aug 2026256 AMAQI
7th Aug 2026387 AMAQI
7th Aug 2026468 AMAQI
7th Aug 2026429 AMAQI
7th Aug 20264410 AMAQI
7th Aug 20264411 AMAQI
7th Aug 20264812 PMAQI
7th Aug 2026481 PMAQI
7th Aug 2026502 PMAQI
7th Aug 2026443 PMAQI
7th Aug 2026444 PMAQI
7th Aug 2026445 PMAQI
7th Aug 2026426 PMAQI
7th Aug 2026447 PMAQI
7th Aug 2026428 PMAQI
7th Aug 2026429 PMAQI
7th Aug 20264410 PMAQI
7th Aug 20264411 PMAQI
8th Aug 20264412 AMAQI
8th Aug 2026421 AMAQI
8th Aug 2026402 AMAQI
8th Aug 2026403 AMAQI
8th Aug 2026404 AMAQI
27°C21/33°C
8th Aug 2026425 AMAQI
8th Aug 2026406 AMAQI
8th Aug 2026387 AMAQI
8th Aug 2026488 AMAQI
8th Aug 2026469 AMAQI
8th Aug 20264410 AMAQI
8th Aug 20264411 AMAQI
8th Aug 20264212 PMAQI
8th Aug 2026421 PMAQI
8th Aug 2026442 PMAQI
8th Aug 2026423 PMAQI
8th Aug 2026424 PMAQI
8th Aug 2026445 PMAQI
8th Aug 2026406 PMAQI
8th Aug 2026427 PMAQI
8th Aug 2026388 PMAQI
8th Aug 2026249 PMAQI
8th Aug 20264010 PMAQI
8th Aug 20262911 PMAQI
9th Aug 20262512 AMAQI
9th Aug 2026381 AMAQI
9th Aug 2026272 AMAQI
9th Aug 2026233 AMAQI
9th Aug 2026234 AMAQI
24°C21/31°C
9th Aug 2026255 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026268 AMAQI
9th Aug 2026249 AMAQI
9th Aug 20262910 AMAQI
9th Aug 20262411 AMAQI
9th Aug 20262712 PMAQI
9th Aug 2026291 PMAQI
9th Aug 2026282 PMAQI
9th Aug 2026243 PMAQI
9th Aug 2026234 PMAQI
9th Aug 2026255 PMAQI
9th Aug 2026256 PMAQI
9th Aug 2026217 PMAQI
9th Aug 2026278 PMAQI
9th Aug 2026389 PMAQI
9th Aug 20264810 PMAQI
9th Aug 20262511 PMAQI
10th Aug 20262512 AMAQI
10th Aug 2026521 AMAQI
10th Aug 2026462 AMAQI
10th Aug 2026473 AMAQI
10th Aug 2026254 AMAQI
24°C20/30°C
10th Aug 2026235 AMAQI
10th Aug 2026256 AMAQI
10th Aug 2026257 AMAQI
10th Aug 2026268 AMAQI
10th Aug 2026259 AMAQI
10th Aug 20262610 AMAQI
10th Aug 20262511 AMAQI
10th Aug 20262612 PMAQI
10th Aug 2026221 PMAQI
10th Aug 2026252 PMAQI
10th Aug 2026213 PMAQI
10th Aug 2026254 PMAQI
10th Aug 2026215 PMAQI
10th Aug 2026256 PMAQI
10th Aug 2026257 PMAQI
10th Aug 2026508 PMAQI
10th Aug 2026269 PMAQI
10th Aug 20262810 PMAQI
10th Aug 20263311 PMAQI
11th Aug 20264212 AMAQI
11th Aug 2026311 AMAQI
11th Aug 2026212 AMAQI
11th Aug 2026423 AMAQI
11th Aug 2026424 AMAQI
22°C19/29°C
11th Aug 2026445 AMAQI
11th Aug 2026426 AMAQI
11th Aug 2026427 AMAQI
11th Aug 2026428 AMAQI
11th Aug 2026389 AMAQI
11th Aug 20262910 AMAQI
11th Aug 20262911 AMAQI
11th Aug 20262512 PMAQI
11th Aug 2026251 PMAQI
11th Aug 2026252 PMAQI
11th Aug 2026253 PMAQI
11th Aug 2026254 PMAQI
11th Aug 2026255 PMAQI
11th Aug 2026216 PMAQI
11th Aug 2026297 PMAQI
11th Aug 2026218 PMAQI
11th Aug 2026509 PMAQI
11th Aug 20266710 PMAQI
11th Aug 20262211 PMAQI
12th Aug 20263212 AMAQI
12th Aug 2026231 AMAQI
12th Aug 2026312 AMAQI
12th Aug 2026363 AMAQI
12th Aug 2026294 AMAQI
22°C18/28°C
12th Aug 2026305 AMAQI
12th Aug 2026276 AMAQI
12th Aug 2026217 AMAQI
12th Aug 2026218 AMAQI
12th Aug 2026229 AMAQI
12th Aug 20262310 AMAQI
12th Aug 20262311 AMAQI
12th Aug 20262512 PMAQI
12th Aug 2026281 PMAQI
12th Aug 2026252 PMAQI
12th Aug 2026383 PMAQI
12th Aug 2026214 PMAQI
12th Aug 2026215 PMAQI
12th Aug 2026216 PMAQI
12th Aug 2026207 PMAQI
12th Aug 2026278 PMAQI
12th Aug 2026259 PMAQI
12th Aug 20262310 PMAQI
12th Aug 20263111 PMAQI
13th Aug 20262112 AMAQI
13th Aug 2026211 AMAQI
13th Aug 2026252 AMAQI
13th Aug 2026223 AMAQI
13th Aug 2026274 AMAQI
20°C16/27°C
13th Aug 2026245 AMAQI
13th Aug 2026246 AMAQI
13th Aug 2026367 AMAQI
13th Aug 2026308 AMAQI
13th Aug 2026249 AMAQI
13th Aug 20262410 AMAQI
13th Aug 20264211 AMAQI
13th Aug 20262212 PMAQI
13th Aug 2026331 PMAQI
13th Aug 2026252 PMAQI
13th Aug 2026333 PMAQI
13th Aug 2026294 PMAQI
13th Aug 2026255 PMAQI
13th Aug 2026256 PMAQI
13th Aug 2026277 PMAQI
13th Aug 2026268 PMAQI
13th Aug 2026269 PMAQI
13th Aug 20262510 PMAQI
13th Aug 20262511 PMAQI
14th Aug 20262912 AMAQI
14th Aug 2026291 AMAQI
14th Aug 2026302 AMAQI
14th Aug 2026253 AMAQI
14th Aug 2026224 AMAQI
20°C16/27°C
14th Aug 2026225 AMAQI
5 AM14th Aug 2026246 AMAQI
14th Aug 2026287 AMAQI
14th Aug 2026248 AMAQI
14th Aug 2026269 AMAQI
14th Aug 20262610 AMAQI
14th Aug 20263011 AMAQI
14th Aug 20262712 PMAQI
12 PM14th Aug 2026291 PMAQI
14th Aug 2026242 PMAQI
14th Aug 2026303 PMAQI
14th Aug 2026224 PMAQI
14th Aug 2026205 PMAQI
14th Aug 2026216 PMAQI
14th Aug 2026207 PMAQI
14th Aug 2026268 PMAQI
8 PM14th Aug 2026309 PMAQI
14th Aug 20262410 PMAQI
14th Aug 20262911 PMAQI
12 AM
4 AM
19°C13/26°C
Day time
Avg. Highest Time
6 AM - 7 AM
39AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
4 PM - 7 PM
34AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 39), while the lowest AQI was between 4 PM to 7 PM (Avg. 34).
Night time
Avg. Highest Time
12 AM - 11 PM
37AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
37AQI
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. 37), while the lowest AQI was between 12 AM to 11 PM (Avg. 37).
2026 Days Vs Air Quality
Rue Sainte-Catherine Est, Montreal, Quebec, Canada
2026
94%
209
6%
14
Total number of days with different AQI categories in last 226 days in 2026 (139 days remaining)
Good
209 DaysModerate
14 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2026, 94% of 226 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
Rue Sainte-Catherine Est, 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
18AQI (US)
18AQI (US)
2nd January 2026
34AQI (US)
34AQI (US)
3rd January 2026
20AQI (US)
20AQI (US)
4th January 2026
44AQI (US)
44AQI (US)
5th January 2026
46AQI (US)
46AQI (US)
6th January 2026
60AQI (US)
60AQI (US)
7th January 2026
58AQI (US)
58AQI (US)
8th January 2026
66AQI (US)
66AQI (US)
9th January 2026
45AQI (US)
45AQI (US)
10th January 2026
16AQI (US)
16AQI (US)
11th January 2026
19AQI (US)
19AQI (US)
12th January 2026
19AQI (US)
19AQI (US)
13th January 2026
47AQI (US)
47AQI (US)
14th January 2026
40AQI (US)
40AQI (US)
15th January 2026
36AQI (US)
36AQI (US)
16th January 2026
18AQI (US)
18AQI (US)
17th January 2026
42AQI (US)
42AQI (US)
18th January 2026
36AQI (US)
36AQI (US)
19th January 2026
47AQI (US)
47AQI (US)
20th January 2026
24AQI (US)
24AQI (US)
21st January 2026
27AQI (US)
27AQI (US)
22nd January 2026
50AQI (US)
50AQI (US)
23rd January 2026
54AQI (US)
54AQI (US)
24th January 2026
49AQI (US)
49AQI (US)
25th January 2026
47AQI (US)
47AQI (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
52AQI (US)
52AQI (US)
30th January 2026
50AQI (US)
50AQI (US)
31st January 2026
45AQI (US)
45AQI (US)
1st February 2026
48AQI (US)
48AQI (US)
2nd February 2026
49AQI (US)
49AQI (US)
3rd February 2026
51AQI (US)
51AQI (US)
4th February 2026
54AQI (US)
54AQI (US)
5th February 2026
50AQI (US)
50AQI (US)
6th February 2026
41AQI (US)
41AQI (US)
7th February 2026
40AQI (US)
40AQI (US)
8th February 2026
46AQI (US)
46AQI (US)
9th February 2026
46AQI (US)
46AQI (US)
10th February 2026
47AQI (US)
47AQI (US)
11th February 2026
47AQI (US)
47AQI (US)
12th February 2026
47AQI (US)
47AQI (US)
13th February 2026
54AQI (US)
54AQI (US)
14th February 2026
50AQI (US)
50AQI (US)
15th February 2026
42AQI (US)
42AQI (US)
16th February 2026
44AQI (US)
44AQI (US)
17th February 2026
45AQI (US)
45AQI (US)
18th February 2026
42AQI (US)
42AQI (US)
19th February 2026
42AQI (US)
42AQI (US)
20th February 2026
44AQI (US)
44AQI (US)
21st February 2026
38AQI (US)
38AQI (US)
22nd February 2026
36AQI (US)
36AQI (US)
23rd February 2026
41AQI (US)
41AQI (US)
24th February 2026
45AQI (US)
45AQI (US)
25th February 2026
43AQI (US)
43AQI (US)
26th February 2026
36AQI (US)
36AQI (US)
27th February 2026
35AQI (US)
35AQI (US)
28th February 2026
39AQI (US)
39AQI (US)
1st March 2026
42AQI (US)
42AQI (US)
2nd March 2026
53AQI (US)
53AQI (US)
3rd March 2026
46AQI (US)
46AQI (US)
4th March 2026
45AQI (US)
45AQI (US)
5th March 2026
43AQI (US)
43AQI (US)
6th March 2026
39AQI (US)
39AQI (US)
7th March 2026
40AQI (US)
40AQI (US)
8th March 2026
39AQI (US)
39AQI (US)
9th March 2026
40AQI (US)
40AQI (US)
10th March 2026
34AQI (US)
34AQI (US)
11th March 2026
42AQI (US)
42AQI (US)
12th March 2026
42AQI (US)
42AQI (US)
13th March 2026
40AQI (US)
40AQI (US)
14th March 2026
37AQI (US)
37AQI (US)
15th March 2026
36AQI (US)
36AQI (US)
16th March 2026
37AQI (US)
37AQI (US)
17th March 2026
34AQI (US)
34AQI (US)
18th March 2026
33AQI (US)
33AQI (US)
19th March 2026
33AQI (US)
33AQI (US)
20th March 2026
37AQI (US)
37AQI (US)
21st March 2026
37AQI (US)
37AQI (US)
22nd March 2026
36AQI (US)
36AQI (US)
23rd March 2026
41AQI (US)
41AQI (US)
24th March 2026
37AQI (US)
37AQI (US)
25th March 2026
34AQI (US)
34AQI (US)
26th March 2026
30AQI (US)
30AQI (US)
27th March 2026
32AQI (US)
32AQI (US)
28th March 2026
35AQI (US)
35AQI (US)
29th March 2026
31AQI (US)
31AQI (US)
30th March 2026
28AQI (US)
28AQI (US)
31st March 2026
26AQI (US)
26AQI (US)
1st April 2026
33AQI (US)
33AQI (US)
2nd April 2026
34AQI (US)
34AQI (US)
3rd April 2026
27AQI (US)
27AQI (US)
4th April 2026
31AQI (US)
31AQI (US)
5th April 2026
29AQI (US)
29AQI (US)
6th April 2026
28AQI (US)
28AQI (US)
7th April 2026
27AQI (US)
27AQI (US)
8th April 2026
32AQI (US)
32AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
31AQI (US)
31AQI (US)
11th April 2026
34AQI (US)
34AQI (US)
12th April 2026
30AQI (US)
30AQI (US)
13th April 2026
34AQI (US)
34AQI (US)
14th April 2026
35AQI (US)
35AQI (US)
15th April 2026
33AQI (US)
33AQI (US)
16th April 2026
30AQI (US)
30AQI (US)
17th April 2026
18th April 2026
34AQI (US)
34AQI (US)
19th April 2026
35AQI (US)
35AQI (US)
20th April 2026
30AQI (US)
30AQI (US)
21st April 2026
28AQI (US)
28AQI (US)
22nd April 2026
23rd April 2026
26AQI (US)
26AQI (US)
24th April 2026
30AQI (US)
30AQI (US)
25th April 2026
33AQI (US)
33AQI (US)
26th April 2026
33AQI (US)
33AQI (US)
27th April 2026
29AQI (US)
29AQI (US)
28th April 2026
25AQI (US)
25AQI (US)
29th April 2026
24AQI (US)
24AQI (US)
30th April 2026
26AQI (US)
26AQI (US)
1st May 2026
27AQI (US)
27AQI (US)
2nd May 2026
26AQI (US)
26AQI (US)
3rd May 2026
21AQI (US)
21AQI (US)
4th May 2026
28AQI (US)
28AQI (US)
5th May 2026
33AQI (US)
33AQI (US)
6th May 2026
32AQI (US)
32AQI (US)
7th May 2026
28AQI (US)
28AQI (US)
8th May 2026
28AQI (US)
28AQI (US)
9th May 2026
10th May 2026
34AQI (US)
34AQI (US)
11th May 2026
32AQI (US)
32AQI (US)
12th May 2026
30AQI (US)
30AQI (US)
13th May 2026
30AQI (US)
30AQI (US)
14th May 2026
25AQI (US)
25AQI (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
56AQI (US)
56AQI (US)
20th May 2026
49AQI (US)
49AQI (US)
21st May 2026
45AQI (US)
45AQI (US)
22nd May 2026
44AQI (US)
44AQI (US)
23rd May 2026
50AQI (US)
50AQI (US)
24th May 2026
48AQI (US)
48AQI (US)
25th May 2026
46AQI (US)
46AQI (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
26AQI (US)
26AQI (US)
1st June 2026
26AQI (US)
26AQI (US)
2nd June 2026
23AQI (US)
23AQI (US)
3rd June 2026
22AQI (US)
22AQI (US)
4th June 2026
24AQI (US)
24AQI (US)
5th June 2026
27AQI (US)
27AQI (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
24AQI (US)
24AQI (US)
12th June 2026
26AQI (US)
26AQI (US)
13th June 2026
21AQI (US)
21AQI (US)
14th June 2026
23AQI (US)
23AQI (US)
15th June 2026
24AQI (US)
24AQI (US)
16th June 2026
25AQI (US)
25AQI (US)
17th June 2026
26AQI (US)
26AQI (US)
18th June 2026
25AQI (US)
25AQI (US)
19th June 2026
22AQI (US)
22AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
21AQI (US)
21AQI (US)
22nd June 2026
23AQI (US)
23AQI (US)
23rd June 2026
22AQI (US)
22AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
25AQI (US)
25AQI (US)
26th June 2026
26AQI (US)
26AQI (US)
27th June 2026
28AQI (US)
28AQI (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
29AQI (US)
29AQI (US)
3rd July 2026
29AQI (US)
29AQI (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
33AQI (US)
33AQI (US)
11th July 2026
31AQI (US)
31AQI (US)
12th July 2026
34AQI (US)
34AQI (US)
13th July 2026
33AQI (US)
33AQI (US)
14th July 2026
34AQI (US)
34AQI (US)
15th July 2026
38AQI (US)
38AQI (US)
16th July 2026
37AQI (US)
37AQI (US)
17th July 2026
34AQI (US)
34AQI (US)
18th July 2026
42AQI (US)
42AQI (US)
19th July 2026
43AQI (US)
43AQI (US)
20th July 2026
40AQI (US)
40AQI (US)
21st July 2026
40AQI (US)
40AQI (US)
22nd July 2026
27AQI (US)
27AQI (US)
23rd July 2026
25AQI (US)
25AQI (US)
24th July 2026
30AQI (US)
30AQI (US)
25th July 2026
40AQI (US)
40AQI (US)
26th July 2026
41AQI (US)
41AQI (US)
27th July 2026
40AQI (US)
40AQI (US)
28th July 2026
51AQI (US)
51AQI (US)
29th July 2026
38AQI (US)
38AQI (US)
30th July 2026
34AQI (US)
34AQI (US)
31st July 2026
48AQI (US)
48AQI (US)
1st August 2026
42AQI (US)
42AQI (US)
2nd August 2026
44AQI (US)
44AQI (US)
3rd August 2026
31AQI (US)
31AQI (US)
4th August 2026
38AQI (US)
38AQI (US)
5th August 2026
38AQI (US)
38AQI (US)
6th August 2026
41AQI (US)
41AQI (US)
7th August 2026
40AQI (US)
40AQI (US)
8th August 2026
41AQI (US)
41AQI (US)
9th August 2026
27AQI (US)
27AQI (US)
10th August 2026
29AQI (US)
29AQI (US)
11th August 2026
34AQI (US)
34AQI (US)
12th August 2026
26AQI (US)
26AQI (US)
13th August 2026
27AQI (US)
27AQI (US)
14th August 2026
26AQI (US)
26AQI (US)
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
40AQI (US)
44AQI (US)
37AQI (US)
30AQI (US)
35AQI (US)
24AQI (US)
34AQI (US)
35AQI (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
26
4
30
30
1
14
209
14
Highest AQI (US) recorded in
February44AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202532AQI (US)
5
30
31
23
7
26
5
24
7
30
28
3
28
2
25
6
250
30
Highest AQI (US) recorded in
July40AQI (US)
Lowest AQI (US) recorded in
May25AQI (US)
Most & Least Polluted Years Over the Last 2 Years
Most Polluted Year Recorded
2026(Avg.)
35AQI (US)Least Polluted Year Recorded
2025(Avg.)
32AQI (US)Rue Sainte-Catherine Est's annual 2026 AQI (US) (35) shows an average percentage change of 9.3% (worsened AQI (US)) compared to previous years: 2025 (32).
