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
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
74AQILowest AQI recorded on
1st Aug 2025
24AQISame Day Analysis (7th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 46 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 8th Aug - 9th Aug 2025
Rue Sainte-Catherine Est, Montreal, Quebec, Canada
AQI
Day
Night
.
5 AM8th Aug 2025
8 PM
4 AM9th Aug 2025
Day time
Avg. Highest Time
9AM8th Aug
61AQI
Avg. Lowest Time
4PM8th Aug
50AQI
Night time
Avg. Highest Time
4AM9th Aug
61AQI
Avg. Lowest Time
11PM8th Aug
52AQI
In the last 24 hours,
Rue Sainte-Catherine Est's AQI reached its highest point of 61 at 9 AM during the Day, while the lowest point, 50, was recorded at 4 PM during the Day between 8th Aug and 9th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Rue Sainte-Catherine Est, Montreal, Quebec, Canada
JulAug
10th - 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 - 07th07th - 08th08th - 09th09th
Day
Night
10th Jul 2025505 AMAQI
10th Jul 2025486 AMAQI
10th Jul 2025517 AMAQI
10th Jul 2025518 AMAQI
10th Jul 2025499 AMAQI
10th Jul 20255010 AMAQI
10th Jul 20255011 AMAQI
10th Jul 20255112 PMAQI
10th Jul 2025501 PMAQI
10th Jul 2025462 PMAQI
10th Jul 2025463 PMAQI
10th Jul 2025464 PMAQI
10th Jul 2025465 PMAQI
10th Jul 2025466 PMAQI
10th Jul 2025527 PMAQI
10th Jul 2025528 PMAQI
10th Jul 2025509 PMAQI
10th Jul 20254410 PMAQI
10th Jul 20254211 PMAQI
11th Jul 20254212 AMAQI
11th Jul 2025421 AMAQI
11th Jul 2025432 AMAQI
11th Jul 2025443 AMAQI
11th Jul 2025494 AMAQI
24°C18/30°C
11th Jul 2025535 AMAQI
11th Jul 2025526 AMAQI
11th Jul 2025507 AMAQI
11th Jul 2025488 AMAQI
11th Jul 2025519 AMAQI
11th Jul 20255110 AMAQI
11th Jul 20255311 AMAQI
11th Jul 20255212 PMAQI
11th Jul 2025521 PMAQI
11th Jul 2025532 PMAQI
11th Jul 2025523 PMAQI
11th Jul 2025544 PMAQI
11th Jul 2025515 PMAQI
11th Jul 2025506 PMAQI
11th Jul 2025507 PMAQI
11th Jul 2025538 PMAQI
11th Jul 2025469 PMAQI
11th Jul 20254310 PMAQI
11th Jul 20254411 PMAQI
12th Jul 20254612 AMAQI
12th Jul 2025471 AMAQI
12th Jul 2025482 AMAQI
12th Jul 2025513 AMAQI
12th Jul 2025534 AMAQI
25°C18/32°C
12th Jul 2025525 AMAQI
12th Jul 2025506 AMAQI
12th Jul 2025497 AMAQI
12th Jul 2025518 AMAQI
12th Jul 2025549 AMAQI
12th Jul 20255210 AMAQI
12th Jul 20255211 AMAQI
12th Jul 20255412 PMAQI
12th Jul 2025551 PMAQI
12th Jul 2025552 PMAQI
12th Jul 2025543 PMAQI
12th Jul 2025544 PMAQI
12th Jul 2025525 PMAQI
12th Jul 2025526 PMAQI
12th Jul 2025527 PMAQI
12th Jul 2025528 PMAQI
12th Jul 2025529 PMAQI
12th Jul 20255210 PMAQI
12th Jul 20255211 PMAQI
13th Jul 20255112 AMAQI
13th Jul 2025521 AMAQI
13th Jul 2025522 AMAQI
13th Jul 2025473 AMAQI
13th Jul 2025434 AMAQI
26°C19/34°C
13th Jul 2025405 AMAQI
13th Jul 2025406 AMAQI
13th Jul 2025397 AMAQI
13th Jul 2025398 AMAQI
13th Jul 2025379 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20253912 PMAQI
13th Jul 2025401 PMAQI
13th Jul 2025382 PMAQI
13th Jul 2025413 PMAQI
13th Jul 2025424 PMAQI
13th Jul 2025425 PMAQI
13th Jul 2025436 PMAQI
13th Jul 2025427 PMAQI
13th Jul 2025418 PMAQI
13th Jul 2025429 PMAQI
13th Jul 20254210 PMAQI
13th Jul 20254011 PMAQI
14th Jul 20254012 AMAQI
14th Jul 2025401 AMAQI
14th Jul 2025382 AMAQI
14th Jul 2025383 AMAQI
14th Jul 2025354 AMAQI
26°C23/31°C
14th Jul 2025345 AMAQI
14th Jul 2025366 AMAQI
14th Jul 2025367 AMAQI
14th Jul 2025348 AMAQI
14th Jul 2025369 AMAQI
14th Jul 20253410 AMAQI
14th Jul 20253911 AMAQI
14th Jul 20254612 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025492 PMAQI
14th Jul 2025433 PMAQI
14th Jul 2025404 PMAQI
14th Jul 2025395 PMAQI
14th Jul 2025406 PMAQI
14th Jul 2025407 PMAQI
14th Jul 2025408 PMAQI
14th Jul 2025389 PMAQI
14th Jul 20253810 PMAQI
14th Jul 20253611 PMAQI
15th Jul 20253712 AMAQI
15th Jul 2025381 AMAQI
15th Jul 2025372 AMAQI
15th Jul 2025323 AMAQI
15th Jul 2025264 AMAQI
26°C22/34°C
15th Jul 2025325 AMAQI
15th Jul 2025346 AMAQI
15th Jul 2025417 AMAQI
15th Jul 2025398 AMAQI
15th Jul 2025419 AMAQI
15th Jul 20254210 AMAQI
15th Jul 20254011 AMAQI
15th Jul 20254012 PMAQI
15th Jul 2025421 PMAQI
15th Jul 2025422 PMAQI
15th Jul 2025443 PMAQI
15th Jul 2025444 PMAQI
15th Jul 2025395 PMAQI
15th Jul 2025406 PMAQI
15th Jul 2025407 PMAQI
15th Jul 2025408 PMAQI
15th Jul 2025399 PMAQI
15th Jul 20253810 PMAQI
15th Jul 20253811 PMAQI
16th Jul 20253812 AMAQI
16th Jul 2025381 AMAQI
16th Jul 2025392 AMAQI
16th Jul 2025403 AMAQI
16th Jul 2025524 AMAQI
26°C19/34°C
16th Jul 2025525 AMAQI
16th Jul 2025526 AMAQI
16th Jul 2025537 AMAQI
16th Jul 2025568 AMAQI
16th Jul 2025519 AMAQI
16th Jul 20255210 AMAQI
16th Jul 20255011 AMAQI
16th Jul 20255112 PMAQI
16th Jul 2025521 PMAQI
16th Jul 2025502 PMAQI
16th Jul 2025523 PMAQI
16th Jul 2025514 PMAQI
16th Jul 2025525 PMAQI
16th Jul 2025516 PMAQI
16th Jul 2025507 PMAQI
16th Jul 2025518 PMAQI
16th Jul 2025509 PMAQI
16th Jul 20254910 PMAQI
16th Jul 20254911 PMAQI
17th Jul 20255012 AMAQI
17th Jul 2025501 AMAQI
17th Jul 2025502 AMAQI
17th Jul 2025533 AMAQI
17th Jul 2025554 AMAQI
28°C21/35°C
17th Jul 2025565 AMAQI
17th Jul 2025536 AMAQI
17th Jul 2025527 AMAQI
17th Jul 2025528 AMAQI
17th Jul 2025529 AMAQI
17th Jul 20255010 AMAQI
17th Jul 20255011 AMAQI
17th Jul 20254912 PMAQI
17th Jul 2025461 PMAQI
17th Jul 2025422 PMAQI
17th Jul 2025403 PMAQI
17th Jul 2025434 PMAQI
17th Jul 2025455 PMAQI
17th Jul 2025456 PMAQI
17th Jul 2025427 PMAQI
17th Jul 2025428 PMAQI
17th Jul 2025499 PMAQI
17th Jul 20254810 PMAQI
17th Jul 20253411 PMAQI
18th Jul 20253412 AMAQI
18th Jul 2025321 AMAQI
18th Jul 2025312 AMAQI
18th Jul 2025203 AMAQI
18th Jul 2025174 AMAQI
27°C18/31°C
18th Jul 2025145 AMAQI
18th Jul 2025146 AMAQI
18th Jul 2025147 AMAQI
18th Jul 2025158 AMAQI
18th Jul 2025169 AMAQI
18th Jul 20251610 AMAQI
18th Jul 20251811 AMAQI
18th Jul 20251912 PMAQI
18th Jul 2025191 PMAQI
18th Jul 2025202 PMAQI
18th Jul 2025203 PMAQI
18th Jul 2025224 PMAQI
18th Jul 2025225 PMAQI
18th Jul 2025226 PMAQI
18th Jul 2025237 PMAQI
18th Jul 2025248 PMAQI
18th Jul 2025229 PMAQI
18th Jul 20252210 PMAQI
18th Jul 20252911 PMAQI
19th Jul 20252912 AMAQI
19th Jul 2025291 AMAQI
19th Jul 2025302 AMAQI
19th Jul 2025303 AMAQI
19th Jul 2025314 AMAQI
20°C14/28°C
19th Jul 2025305 AMAQI
19th Jul 2025316 AMAQI
19th Jul 2025297 AMAQI
19th Jul 2025298 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252610 AMAQI
19th Jul 20252611 AMAQI
19th Jul 20252812 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025342 PMAQI
19th Jul 2025373 PMAQI
19th Jul 2025344 PMAQI
19th Jul 2025345 PMAQI
19th Jul 2025426 PMAQI
19th Jul 2025437 PMAQI
19th Jul 2025428 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253510 PMAQI
19th Jul 20254511 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025411 AMAQI
20th Jul 2025422 AMAQI
20th Jul 2025463 AMAQI
20th Jul 2025504 AMAQI
22°C15/30°C
20th Jul 2025505 AMAQI
20th Jul 2025496 AMAQI
20th Jul 2025457 AMAQI
20th Jul 2025438 AMAQI
20th Jul 2025419 AMAQI
20th Jul 20253810 AMAQI
20th Jul 20253611 AMAQI
20th Jul 20253412 PMAQI
20th Jul 2025321 PMAQI
20th Jul 2025332 PMAQI
20th Jul 2025323 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025345 PMAQI
20th Jul 2025346 PMAQI
20th Jul 2025357 PMAQI
20th Jul 2025368 PMAQI
20th Jul 2025389 PMAQI
20th Jul 20254210 PMAQI
20th Jul 20254711 PMAQI
21st Jul 20254012 AMAQI
21st Jul 2025381 AMAQI
21st Jul 2025382 AMAQI
21st Jul 2025503 AMAQI
21st Jul 2025534 AMAQI
21°C17/29°C
21st Jul 2025485 AMAQI
21st Jul 2025376 AMAQI
21st Jul 2025327 AMAQI
21st Jul 2025318 AMAQI
21st Jul 2025309 AMAQI
21st Jul 20252710 AMAQI
21st Jul 20252611 AMAQI
21st Jul 20252312 PMAQI
21st Jul 2025221 PMAQI
21st Jul 2025202 PMAQI
21st Jul 2025193 PMAQI
21st Jul 2025214 PMAQI
21st Jul 2025235 PMAQI
21st Jul 2025236 PMAQI
21st Jul 2025247 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025259 PMAQI
21st Jul 20252510 PMAQI
21st Jul 20252211 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025221 AMAQI
22nd Jul 2025202 AMAQI
22nd Jul 2025183 AMAQI
22nd Jul 2025174 AMAQI
19°C14/24°C
22nd Jul 2025195 AMAQI
22nd Jul 2025186 AMAQI
22nd Jul 2025187 AMAQI
22nd Jul 2025188 AMAQI
22nd Jul 2025189 AMAQI
22nd Jul 20251910 AMAQI
22nd Jul 20251911 AMAQI
22nd Jul 20251912 PMAQI
22nd Jul 2025191 PMAQI
22nd Jul 2025182 PMAQI
22nd Jul 2025193 PMAQI
22nd Jul 2025194 PMAQI
22nd Jul 2025205 PMAQI
22nd Jul 2025206 PMAQI
22nd Jul 2025207 PMAQI
22nd Jul 2025208 PMAQI
22nd Jul 2025199 PMAQI
22nd Jul 20251910 PMAQI
22nd Jul 20252011 PMAQI
23rd Jul 20252012 AMAQI
23rd Jul 2025221 AMAQI
23rd Jul 2025222 AMAQI
23rd Jul 2025223 AMAQI
23rd Jul 2025234 AMAQI
19°C11/24°C
23rd Jul 2025245 AMAQI
23rd Jul 2025246 AMAQI
23rd Jul 2025267 AMAQI
23rd Jul 2025268 AMAQI
23rd Jul 2025269 AMAQI
23rd Jul 20252810 AMAQI
23rd Jul 20252811 AMAQI
23rd Jul 20252912 PMAQI
23rd Jul 2025301 PMAQI
23rd Jul 2025292 PMAQI
23rd Jul 2025283 PMAQI
23rd Jul 2025284 PMAQI
23rd Jul 2025265 PMAQI
23rd Jul 2025246 PMAQI
23rd Jul 2025237 PMAQI
23rd Jul 2025238 PMAQI
23rd Jul 2025249 PMAQI
23rd Jul 20252410 PMAQI
23rd Jul 20252511 PMAQI
24th Jul 20252312 AMAQI
24th Jul 2025241 AMAQI
24th Jul 2025242 AMAQI
24th Jul 2025273 AMAQI
24th Jul 2025284 AMAQI
21°C12/29°C
24th Jul 2025285 AMAQI
24th Jul 2025286 AMAQI
24th Jul 2025277 AMAQI
24th Jul 2025268 AMAQI
24th Jul 2025289 AMAQI
24th Jul 20253010 AMAQI
24th Jul 20253511 AMAQI
24th Jul 20254212 PMAQI
24th Jul 2025441 PMAQI
24th Jul 2025412 PMAQI
24th Jul 2025423 PMAQI
24th Jul 2025374 PMAQI
24th Jul 2025325 PMAQI
24th Jul 2025326 PMAQI
24th Jul 2025337 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025329 PMAQI
24th Jul 20253410 PMAQI
24th Jul 20253211 PMAQI
25th Jul 20253112 AMAQI
25th Jul 2025301 AMAQI
25th Jul 2025322 AMAQI
25th Jul 2025383 AMAQI
25th Jul 2025504 AMAQI
26°C17/35°C
25th Jul 2025425 AMAQI
25th Jul 2025376 AMAQI
25th Jul 2025387 AMAQI
25th Jul 2025368 AMAQI
25th Jul 2025359 AMAQI
25th Jul 20253410 AMAQI
25th Jul 20253411 AMAQI
25th Jul 20253212 PMAQI
25th Jul 2025331 PMAQI
25th Jul 2025392 PMAQI
25th Jul 2025493 PMAQI
25th Jul 2025454 PMAQI
25th Jul 2025385 PMAQI
25th Jul 2025386 PMAQI
25th Jul 2025367 PMAQI
25th Jul 2025378 PMAQI
25th Jul 2025439 PMAQI
25th Jul 20253810 PMAQI
25th Jul 20253611 PMAQI
26th Jul 20253712 AMAQI
26th Jul 2025381 AMAQI
26th Jul 2025392 AMAQI
26th Jul 2025483 AMAQI
26th Jul 2025444 AMAQI
26°C23/31°C
26th Jul 2025455 AMAQI
26th Jul 2025526 AMAQI
26th Jul 2025587 AMAQI
26th Jul 2025548 AMAQI
26th Jul 2025489 AMAQI
26th Jul 20255810 AMAQI
26th Jul 20255211 AMAQI
26th Jul 20255212 PMAQI
26th Jul 2025511 PMAQI
26th Jul 2025512 PMAQI
26th Jul 2025483 PMAQI
26th Jul 2025504 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025526 PMAQI
26th Jul 2025527 PMAQI
26th Jul 2025518 PMAQI
26th Jul 2025529 PMAQI
26th Jul 20255110 PMAQI
26th Jul 20255011 PMAQI
27th Jul 20255212 AMAQI
27th Jul 2025511 AMAQI
27th Jul 2025522 AMAQI
27th Jul 2025503 AMAQI
27th Jul 2025604 AMAQI
24°C15/33°C
27th Jul 2025585 AMAQI
27th Jul 2025576 AMAQI
27th Jul 2025567 AMAQI
27th Jul 2025548 AMAQI
27th Jul 2025599 AMAQI
27th Jul 20255610 AMAQI
27th Jul 20255711 AMAQI
27th Jul 20255612 PMAQI
27th Jul 2025561 PMAQI
27th Jul 2025562 PMAQI
27th Jul 2025563 PMAQI
27th Jul 2025564 PMAQI
27th Jul 2025575 PMAQI
27th Jul 2025576 PMAQI
27th Jul 2025577 PMAQI
27th Jul 2025578 PMAQI
27th Jul 2025559 PMAQI
27th Jul 20255710 PMAQI
27th Jul 20255811 PMAQI
28th Jul 20255612 AMAQI
28th Jul 2025561 AMAQI
28th Jul 2025562 AMAQI
28th Jul 2025553 AMAQI
28th Jul 2025574 AMAQI
24°C18/31°C
28th Jul 2025585 AMAQI
28th Jul 2025616 AMAQI
28th Jul 2025617 AMAQI
28th Jul 2025618 AMAQI
28th Jul 2025619 AMAQI
28th Jul 20256110 AMAQI
28th Jul 20256011 AMAQI
28th Jul 20256012 PMAQI
28th Jul 2025611 PMAQI
28th Jul 2025612 PMAQI
28th Jul 2025583 PMAQI
28th Jul 2025574 PMAQI
28th Jul 2025585 PMAQI
28th Jul 2025586 PMAQI
28th Jul 2025587 PMAQI
28th Jul 2025588 PMAQI
28th Jul 2025599 PMAQI
28th Jul 20256010 PMAQI
28th Jul 20255711 PMAQI
29th Jul 20255712 AMAQI
29th Jul 2025561 AMAQI
29th Jul 2025572 AMAQI
29th Jul 2025603 AMAQI
29th Jul 2025604 AMAQI
27°C20/33°C
29th Jul 2025605 AMAQI
29th Jul 2025586 AMAQI
29th Jul 2025587 AMAQI
29th Jul 2025588 AMAQI
29th Jul 2025589 AMAQI
29th Jul 20255510 AMAQI
29th Jul 20255311 AMAQI
29th Jul 20254812 PMAQI
29th Jul 2025461 PMAQI
29th Jul 2025442 PMAQI
29th Jul 2025433 PMAQI
29th Jul 2025464 PMAQI
29th Jul 2025525 PMAQI
29th Jul 2025536 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025548 PMAQI
29th Jul 2025569 PMAQI
29th Jul 20255810 PMAQI
29th Jul 20255911 PMAQI
30th Jul 20255812 AMAQI
30th Jul 2025581 AMAQI
30th Jul 2025582 AMAQI
30th Jul 2025583 AMAQI
30th Jul 2025604 AMAQI
25°C21/29°C
30th Jul 2025625 AMAQI
30th Jul 2025636 AMAQI
30th Jul 2025647 AMAQI
30th Jul 2025648 AMAQI
30th Jul 2025659 AMAQI
30th Jul 20256210 AMAQI
30th Jul 20256211 AMAQI
30th Jul 20256412 PMAQI
30th Jul 2025661 PMAQI
30th Jul 2025652 PMAQI
30th Jul 2025653 PMAQI
30th Jul 2025684 PMAQI
30th Jul 2025675 PMAQI
30th Jul 2025676 PMAQI
30th Jul 2025677 PMAQI
30th Jul 2025678 PMAQI
30th Jul 2025679 PMAQI
30th Jul 20256710 PMAQI
30th Jul 20256211 PMAQI
31st Jul 20256112 AMAQI
31st Jul 2025611 AMAQI
31st Jul 2025602 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025604 AMAQI
24°C19/29°C
31st Jul 2025685 AMAQI
31st Jul 2025626 AMAQI
31st Jul 2025577 AMAQI
31st Jul 2025508 AMAQI
31st Jul 2025479 AMAQI
31st Jul 20254410 AMAQI
31st Jul 20254411 AMAQI
31st Jul 20253612 PMAQI
31st Jul 2025361 PMAQI
31st Jul 2025332 PMAQI
31st Jul 2025363 PMAQI
31st Jul 2025354 PMAQI
31st Jul 2025345 PMAQI
31st Jul 2025336 PMAQI
31st Jul 2025337 PMAQI
31st Jul 2025348 PMAQI
31st Jul 2025469 PMAQI
31st Jul 20254010 PMAQI
31st Jul 20253211 PMAQI
1st Aug 20253212 AMAQI
1st Aug 2025341 AMAQI
1st Aug 2025332 AMAQI
1st Aug 2025343 AMAQI
1st Aug 2025314 AMAQI
19°C15/24°C
1st Aug 2025295 AMAQI
1st Aug 2025266 AMAQI
1st Aug 2025227 AMAQI
1st Aug 2025208 AMAQI
1st Aug 2025209 AMAQI
1st Aug 20252110 AMAQI
1st Aug 20252111 AMAQI
1st Aug 20252112 PMAQI
1st Aug 2025201 PMAQI
1st Aug 2025202 PMAQI
1st Aug 2025203 PMAQI
1st Aug 2025164 PMAQI
1st Aug 2025185 PMAQI
1st Aug 2025186 PMAQI
1st Aug 2025177 PMAQI
1st Aug 2025168 PMAQI
1st Aug 2025209 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252212 AMAQI
2nd Aug 2025231 AMAQI
2nd Aug 2025252 AMAQI
2nd Aug 2025263 AMAQI
2nd Aug 2025274 AMAQI
18°C10/26°C
2nd Aug 2025285 AMAQI
2nd Aug 2025286 AMAQI
2nd Aug 2025287 AMAQI
2nd Aug 2025258 AMAQI
2nd Aug 2025249 AMAQI
2nd Aug 20252210 AMAQI
2nd Aug 20252211 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025221 PMAQI
2nd Aug 2025262 PMAQI
2nd Aug 2025303 PMAQI
2nd Aug 2025384 PMAQI
2nd Aug 2025555 PMAQI
2nd Aug 2025606 PMAQI
2nd Aug 2025517 PMAQI
2nd Aug 2025298 PMAQI
2nd Aug 2025289 PMAQI
2nd Aug 20253110 PMAQI
2nd Aug 20253811 PMAQI
3rd Aug 20254312 AMAQI
3rd Aug 2025411 AMAQI
3rd Aug 2025452 AMAQI
3rd Aug 2025523 AMAQI
3rd Aug 2025454 AMAQI
21°C12/30°C
3rd Aug 2025425 AMAQI
3rd Aug 2025476 AMAQI
3rd Aug 2025457 AMAQI
3rd Aug 2025418 AMAQI
3rd Aug 2025389 AMAQI
3rd Aug 20254710 AMAQI
3rd Aug 20255811 AMAQI
3rd Aug 20256112 PMAQI
3rd Aug 2025681 PMAQI
3rd Aug 2025702 PMAQI
3rd Aug 2025683 PMAQI
3rd Aug 2025674 PMAQI
3rd Aug 2025695 PMAQI
3rd Aug 2025696 PMAQI
3rd Aug 2025687 PMAQI
3rd Aug 2025658 PMAQI
3rd Aug 2025559 PMAQI
3rd Aug 20256210 PMAQI
3rd Aug 20255911 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025571 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025494 AMAQI
24°C15/33°C
4th Aug 2025585 AMAQI
4th Aug 2025616 AMAQI
4th Aug 2025627 AMAQI
4th Aug 2025648 AMAQI
4th Aug 2025689 AMAQI
4th Aug 20257410 AMAQI
4th Aug 20257911 AMAQI
4th Aug 20258012 PMAQI
4th Aug 20251041 PMAQI
4th Aug 20251272 PMAQI
4th Aug 20251313 PMAQI
4th Aug 20251154 PMAQI
4th Aug 20251025 PMAQI
4th Aug 2025936 PMAQI
4th Aug 2025917 PMAQI
4th Aug 2025868 PMAQI
4th Aug 2025709 PMAQI
4th Aug 20257710 PMAQI
4th Aug 20257711 PMAQI
5th Aug 20257612 AMAQI
5th Aug 2025691 AMAQI
5th Aug 2025632 AMAQI
5th Aug 2025533 AMAQI
5th Aug 2025484 AMAQI
22°C17/27°C
5th Aug 2025445 AMAQI
5th Aug 2025406 AMAQI
5th Aug 2025397 AMAQI
5th Aug 2025358 AMAQI
5th Aug 2025329 AMAQI
5th Aug 20253210 AMAQI
5th Aug 20253811 AMAQI
5th Aug 20254412 PMAQI
5th Aug 2025421 PMAQI
5th Aug 2025372 PMAQI
5th Aug 2025343 PMAQI
5th Aug 2025334 PMAQI
5th Aug 2025305 PMAQI
5th Aug 2025336 PMAQI
5th Aug 2025327 PMAQI
5th Aug 2025318 PMAQI
5th Aug 2025389 PMAQI
5th Aug 20253410 PMAQI
5th Aug 20253711 PMAQI
6th Aug 20254212 AMAQI
6th Aug 2025441 AMAQI
6th Aug 2025452 AMAQI
6th Aug 2025413 AMAQI
6th Aug 2025344 AMAQI
20°C12/26°C
6th Aug 2025325 AMAQI
6th Aug 2025326 AMAQI
6th Aug 2025347 AMAQI
6th Aug 2025318 AMAQI
6th Aug 2025309 AMAQI
6th Aug 20253210 AMAQI
6th Aug 20253511 AMAQI
6th Aug 20254012 PMAQI
6th Aug 2025411 PMAQI
6th Aug 2025442 PMAQI
6th Aug 2025403 PMAQI
6th Aug 2025364 PMAQI
6th Aug 2025375 PMAQI
6th Aug 2025366 PMAQI
6th Aug 2025407 PMAQI
6th Aug 2025358 PMAQI
6th Aug 2025349 PMAQI
6th Aug 20254010 PMAQI
6th Aug 20254611 PMAQI
7th Aug 20255112 AMAQI
7th Aug 2025521 AMAQI
7th Aug 2025492 AMAQI
7th Aug 2025453 AMAQI
7th Aug 2025434 AMAQI
21°C12/28°C
7th Aug 2025365 AMAQI
7th Aug 2025346 AMAQI
7th Aug 2025377 AMAQI
7th Aug 2025378 AMAQI
7th Aug 2025409 AMAQI
7th Aug 20254610 AMAQI
7th Aug 20255211 AMAQI
7th Aug 20255212 PMAQI
7th Aug 2025521 PMAQI
7th Aug 2025522 PMAQI
7th Aug 2025493 PMAQI
7th Aug 2025484 PMAQI
7th Aug 2025455 PMAQI
7th Aug 2025466 PMAQI
7th Aug 2025447 PMAQI
7th Aug 2025488 PMAQI
7th Aug 2025469 PMAQI
7th Aug 20254310 PMAQI
7th Aug 20254211 PMAQI
8th Aug 20254012 AMAQI
8th Aug 2025401 AMAQI
8th Aug 2025412 AMAQI
8th Aug 2025433 AMAQI
8th Aug 2025514 AMAQI
23°C14/32°C
8th Aug 2025555 AMAQI
8th Aug 2025576 AMAQI
8th Aug 2025597 AMAQI
8th Aug 2025608 AMAQI
8th Aug 2025619 AMAQI
8th Aug 20256010 AMAQI
8th Aug 20255811 AMAQI
8th Aug 20255412 PMAQI
8th Aug 2025531 PMAQI
8th Aug 2025522 PMAQI
8th Aug 2025503 PMAQI
8th Aug 2025504 PMAQI
8th Aug 2025535 PMAQI
8th Aug 2025526 PMAQI
8th Aug 2025537 PMAQI
8th Aug 2025548 PMAQI
8th Aug 2025539 PMAQI
8th Aug 20255310 PMAQI
8th Aug 20255211 PMAQI
9th Aug 20255312 AMAQI
9th Aug 2025541 AMAQI
9th Aug 2025542 AMAQI
9th Aug 2025563 AMAQI
9th Aug 2025614 AMAQI
25°C18/34°C
9th Aug 2025585 AMAQI
5 AM9th Aug 2025616 AMAQI
9th Aug 2025597 AMAQI
9th Aug 2025628 AMAQI
9th Aug 2025609 AMAQI
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
44AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
44AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 44), while the lowest AQI was between 5 AM to 8 PM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 11 PM
43AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
43AQI
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. 43), while the lowest AQI was between 12 AM to 11 PM (Avg. 43).
2025 Days Vs Air Quality
Rue Sainte-Catherine Est, Montreal, Quebec, Canada
2025
90%
120
10%
14
Total number of days with different AQI categories in last 221 days in 2025 (144 days remaining)
Good
120 DaysModerate
14 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 221 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 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st March 2025
21AQI
21AQI
2nd March 2025
22AQI
22AQI
3rd March 2025
23AQI
23AQI
4th March 2025
28AQI
28AQI
5th March 2025
33AQI
33AQI
1st April 2025
18AQI
18AQI
2nd April 2025
21AQI
21AQI
3rd April 2025
21AQI
21AQI
4th April 2025
19AQI
19AQI
5th April 2025
21AQI
21AQI
6th April 2025
18AQI
18AQI
7th April 2025
21AQI
21AQI
8th April 2025
22AQI
22AQI
9th April 2025
19AQI
19AQI
10th April 2025
26AQI
26AQI
11th April 2025
35AQI
35AQI
12th April 2025
45AQI
45AQI
13th April 2025
27AQI
27AQI
14th April 2025
36AQI
36AQI
15th April 2025
30AQI
30AQI
16th April 2025
15AQI
15AQI
17th April 2025
18AQI
18AQI
18th April 2025
26AQI
26AQI
19th April 2025
46AQI
46AQI
20th April 2025
16AQI
16AQI
21st April 2025
26AQI
26AQI
22nd April 2025
24AQI
24AQI
23rd April 2025
16AQI
16AQI
24th April 2025
29AQI
29AQI
25th April 2025
27AQI
27AQI
26th April 2025
28AQI
28AQI
27th April 2025
15AQI
15AQI
28th April 2025
25AQI
25AQI
29th April 2025
31AQI
31AQI
30th April 2025
18AQI
18AQI
1st May 2025
18AQI
18AQI
2nd May 2025
26AQI
26AQI
3rd May 2025
16AQI
16AQI
4th May 2025
28AQI
28AQI
5th May 2025
26AQI
26AQI
6th May 2025
23AQI
23AQI
7th May 2025
17AQI
17AQI
8th May 2025
18AQI
18AQI
9th May 2025
22AQI
22AQI
10th May 2025
24AQI
24AQI
11th May 2025
17AQI
17AQI
12th May 2025
23AQI
23AQI
13th May 2025
38AQI
38AQI
14th May 2025
39AQI
39AQI
15th May 2025
31AQI
31AQI
16th May 2025
45AQI
45AQI
17th May 2025
42AQI
42AQI
18th May 2025
21AQI
21AQI
19th May 2025
13AQI
13AQI
20th May 2025
16AQI
16AQI
21st May 2025
22AQI
22AQI
22nd May 2025
17AQI
17AQI
23rd May 2025
16AQI
16AQI
24th May 2025
14AQI
14AQI
25th May 2025
17AQI
17AQI
26th May 2025
24AQI
24AQI
27th May 2025
26AQI
26AQI
28th May 2025
35AQI
35AQI
29th May 2025
34AQI
34AQI
30th May 2025
26AQI
26AQI
31st May 2025
36AQI
36AQI
1st June 2025
27AQI
27AQI
2nd June 2025
22AQI
22AQI
3rd June 2025
25AQI
25AQI
4th June 2025
40AQI
40AQI
5th June 2025
42AQI
42AQI
6th June 2025
53AQI
53AQI
7th June 2025
58AQI
58AQI
8th June 2025
58AQI
58AQI
9th June 2025
59AQI
59AQI
10th June 2025
46AQI
46AQI
11th June 2025
52AQI
52AQI
12th June 2025
55AQI
55AQI
13th June 2025
29AQI
29AQI
14th June 2025
28AQI
28AQI
15th June 2025
30AQI
30AQI
16th June 2025
45AQI
45AQI
17th June 2025
44AQI
44AQI
18th June 2025
26AQI
26AQI
19th June 2025
38AQI
38AQI
20th June 2025
23AQI
23AQI
21st June 2025
25AQI
25AQI
22nd June 2025
28AQI
28AQI
23rd June 2025
41AQI
41AQI
24th June 2025
52AQI
52AQI
25th June 2025
48AQI
48AQI
26th June 2025
33AQI
33AQI
27th June 2025
29AQI
29AQI
28th June 2025
28AQI
28AQI
29th June 2025
31AQI
31AQI
30th June 2025
31AQI
31AQI
1st July 2025
34AQI
34AQI
2nd July 2025
32AQI
32AQI
3rd July 2025
36AQI
36AQI
4th July 2025
26AQI
26AQI
5th July 2025
27AQI
27AQI
6th July 2025
40AQI
40AQI
7th July 2025
44AQI
44AQI
8th July 2025
33AQI
33AQI
9th July 2025
41AQI
41AQI
10th July 2025
47AQI
47AQI
11th July 2025
48AQI
48AQI
12th July 2025
51AQI
51AQI
13th July 2025
43AQI
43AQI
14th July 2025
39AQI
39AQI
15th July 2025
38AQI
38AQI
16th July 2025
47AQI
47AQI
17th July 2025
48AQI
48AQI
18th July 2025
24AQI
24AQI
19th July 2025
33AQI
33AQI
20th July 2025
40AQI
40AQI
21st July 2025
32AQI
32AQI
22nd July 2025
20AQI
20AQI
23rd July 2025
24AQI
24AQI
24th July 2025
30AQI
30AQI
25th July 2025
37AQI
37AQI
26th July 2025
47AQI
47AQI
27th July 2025
55AQI
55AQI
28th July 2025
58AQI
58AQI
29th July 2025
55AQI
55AQI
30th July 2025
63AQI
63AQI
31st July 2025
48AQI
48AQI
1st August 2025
24AQI
24AQI
2nd August 2025
30AQI
30AQI
3rd August 2025
53AQI
53AQI
4th August 2025
74AQI
74AQI
5th August 2025
47AQI
47AQI
6th August 2025
39AQI
39AQI
7th August 2025
46AQI
46AQI
25AQI
25AQI
25AQI
38AQI
40AQI
45AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202532AQI
5
30
31
23
7
26
5
5
2
120
14
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
April25AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
32AQILeast Polluted Year Recorded
2025(Avg.)
32AQIRue Sainte-Catherine Est's annual 2025 AQI (32) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
