Sarnia, Port Huron, Michigan, United States 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
Sarnia, Port Huron, Michigan, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
3rd Aug 2025
89AQILowest AQI recorded on
30th Aug 2023
18AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 89 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Sarnia, Port Huron, Michigan, United States
AQI
Day
Night
.
6 AM3rd Aug 2025
9 PM
5 AM4th Aug 2025
Day time
Avg. Highest Time
3PM3rd Aug
120AQI
Avg. Lowest Time
6AM3rd Aug
79AQI
Night time
Avg. Highest Time
4AM4th Aug
147AQI
Avg. Lowest Time
10PM3rd Aug
124AQI
In the last 24 hours,
Sarnia's AQI reached its highest point of 147 at 4 AM during the Night, while the lowest point, 79, was recorded at 6 AM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Sarnia, Port Huron, Michigan, United States
JulAug
05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025526 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025548 AMAQI
5th Jul 2025559 AMAQI
5th Jul 20255410 AMAQI
5th Jul 20255511 AMAQI
5th Jul 20255412 PMAQI
5th Jul 2025531 PMAQI
5th Jul 2025522 PMAQI
5th Jul 2025533 PMAQI
5th Jul 2025534 PMAQI
5th Jul 2025525 PMAQI
5th Jul 2025526 PMAQI
5th Jul 2025547 PMAQI
5th Jul 2025538 PMAQI
5th Jul 2025549 PMAQI
5th Jul 20255510 PMAQI
5th Jul 20255311 PMAQI
6th Jul 20255312 AMAQI
6th Jul 2025551 AMAQI
6th Jul 2025542 AMAQI
6th Jul 2025543 AMAQI
6th Jul 2025544 AMAQI
6th Jul 2025565 AMAQI
25°C18/33°C
6th Jul 2025566 AMAQI
6th Jul 2025557 AMAQI
6th Jul 2025558 AMAQI
6th Jul 2025569 AMAQI
6th Jul 20255610 AMAQI
6th Jul 20255611 AMAQI
6th Jul 20255512 PMAQI
6th Jul 2025561 PMAQI
6th Jul 2025552 PMAQI
6th Jul 2025543 PMAQI
6th Jul 2025524 PMAQI
6th Jul 2025545 PMAQI
6th Jul 2025546 PMAQI
6th Jul 2025557 PMAQI
6th Jul 2025548 PMAQI
6th Jul 2025559 PMAQI
6th Jul 20255410 PMAQI
6th Jul 20255011 PMAQI
7th Jul 20253712 AMAQI
7th Jul 2025341 AMAQI
7th Jul 2025342 AMAQI
7th Jul 2025303 AMAQI
7th Jul 2025244 AMAQI
7th Jul 2025225 AMAQI
27°C22/34°C
7th Jul 2025206 AMAQI
7th Jul 2025287 AMAQI
7th Jul 2025248 AMAQI
7th Jul 2025229 AMAQI
7th Jul 20252910 AMAQI
7th Jul 20252411 AMAQI
7th Jul 20252312 PMAQI
7th Jul 2025271 PMAQI
7th Jul 2025302 PMAQI
7th Jul 2025313 PMAQI
7th Jul 2025314 PMAQI
7th Jul 2025355 PMAQI
7th Jul 2025326 PMAQI
7th Jul 2025337 PMAQI
7th Jul 2025348 PMAQI
7th Jul 2025379 PMAQI
7th Jul 20253510 PMAQI
7th Jul 20253311 PMAQI
8th Jul 20253512 AMAQI
8th Jul 2025361 AMAQI
8th Jul 2025402 AMAQI
8th Jul 2025383 AMAQI
8th Jul 2025394 AMAQI
8th Jul 2025395 AMAQI
19°C17/21°C
8th Jul 2025406 AMAQI
8th Jul 2025427 AMAQI
8th Jul 2025398 AMAQI
8th Jul 2025379 AMAQI
8th Jul 20253310 AMAQI
8th Jul 20253411 AMAQI
8th Jul 20253612 PMAQI
8th Jul 2025441 PMAQI
8th Jul 2025442 PMAQI
8th Jul 2025433 PMAQI
8th Jul 2025464 PMAQI
8th Jul 2025445 PMAQI
8th Jul 2025446 PMAQI
8th Jul 2025407 PMAQI
8th Jul 2025438 PMAQI
8th Jul 2025449 PMAQI
8th Jul 20254710 PMAQI
8th Jul 20254811 PMAQI
9th Jul 20255512 AMAQI
9th Jul 2025541 AMAQI
9th Jul 2025582 AMAQI
9th Jul 2025583 AMAQI
9th Jul 2025604 AMAQI
9th Jul 2025585 AMAQI
20°C15/25°C
9th Jul 2025606 AMAQI
9th Jul 2025587 AMAQI
9th Jul 2025588 AMAQI
9th Jul 2025579 AMAQI
9th Jul 20255610 AMAQI
9th Jul 20255611 AMAQI
9th Jul 20255412 PMAQI
9th Jul 2025551 PMAQI
9th Jul 2025542 PMAQI
9th Jul 2025563 PMAQI
9th Jul 2025564 PMAQI
9th Jul 2025555 PMAQI
9th Jul 2025566 PMAQI
9th Jul 2025547 PMAQI
9th Jul 2025548 PMAQI
9th Jul 2025549 PMAQI
9th Jul 20255410 PMAQI
9th Jul 20255011 PMAQI
10th Jul 20253612 AMAQI
10th Jul 2025381 AMAQI
10th Jul 2025352 AMAQI
10th Jul 2025393 AMAQI
10th Jul 2025394 AMAQI
10th Jul 2025395 AMAQI
22°C18/27°C
10th Jul 2025396 AMAQI
10th Jul 2025467 AMAQI
10th Jul 2025438 AMAQI
10th Jul 2025449 AMAQI
10th Jul 20254410 AMAQI
10th Jul 20254611 AMAQI
10th Jul 20254412 PMAQI
10th Jul 2025441 PMAQI
10th Jul 2025442 PMAQI
10th Jul 2025443 PMAQI
10th Jul 2025464 PMAQI
10th Jul 2025445 PMAQI
10th Jul 2025436 PMAQI
10th Jul 2025447 PMAQI
10th Jul 2025448 PMAQI
10th Jul 2025419 PMAQI
10th Jul 20254410 PMAQI
10th Jul 20254611 PMAQI
11th Jul 20254812 AMAQI
11th Jul 2025481 AMAQI
11th Jul 2025482 AMAQI
11th Jul 2025493 AMAQI
11th Jul 2025484 AMAQI
11th Jul 2025485 AMAQI
21°C17/25°C
11th Jul 2025526 AMAQI
11th Jul 2025527 AMAQI
11th Jul 2025518 AMAQI
11th Jul 2025509 AMAQI
11th Jul 20255210 AMAQI
11th Jul 20255211 AMAQI
11th Jul 20255012 PMAQI
11th Jul 2025501 PMAQI
11th Jul 2025502 PMAQI
11th Jul 2025503 PMAQI
11th Jul 2025514 PMAQI
11th Jul 2025505 PMAQI
11th Jul 2025506 PMAQI
11th Jul 2025507 PMAQI
11th Jul 2025508 PMAQI
11th Jul 2025489 PMAQI
11th Jul 20254810 PMAQI
11th Jul 20254811 PMAQI
12th Jul 20253812 AMAQI
12th Jul 2025341 AMAQI
12th Jul 2025332 AMAQI
12th Jul 2025323 AMAQI
12th Jul 2025314 AMAQI
12th Jul 2025365 AMAQI
22°C18/26°C
12th Jul 2025406 AMAQI
12th Jul 2025407 AMAQI
12th Jul 2025388 AMAQI
12th Jul 2025389 AMAQI
12th Jul 20254110 AMAQI
12th Jul 20254311 AMAQI
12th Jul 20254612 PMAQI
12th Jul 2025451 PMAQI
12th Jul 2025422 PMAQI
12th Jul 2025403 PMAQI
12th Jul 2025434 PMAQI
12th Jul 2025385 PMAQI
12th Jul 2025406 PMAQI
12th Jul 2025367 PMAQI
12th Jul 2025408 PMAQI
12th Jul 2025419 PMAQI
12th Jul 20254110 PMAQI
12th Jul 20254011 PMAQI
13th Jul 20253312 AMAQI
13th Jul 2025371 AMAQI
13th Jul 2025362 AMAQI
13th Jul 2025373 AMAQI
13th Jul 2025364 AMAQI
13th Jul 2025345 AMAQI
26°C20/34°C
13th Jul 2025336 AMAQI
13th Jul 2025367 AMAQI
13th Jul 2025368 AMAQI
13th Jul 2025379 AMAQI
13th Jul 20254210 AMAQI
13th Jul 20254711 AMAQI
13th Jul 20255512 PMAQI
13th Jul 2025561 PMAQI
13th Jul 2025532 PMAQI
13th Jul 2025433 PMAQI
13th Jul 2025444 PMAQI
13th Jul 2025435 PMAQI
13th Jul 2025456 PMAQI
13th Jul 2025437 PMAQI
13th Jul 2025428 PMAQI
13th Jul 2025459 PMAQI
13th Jul 20255010 PMAQI
13th Jul 20255111 PMAQI
14th Jul 20256012 AMAQI
14th Jul 2025671 AMAQI
14th Jul 2025762 AMAQI
14th Jul 2025723 AMAQI
14th Jul 2025704 AMAQI
14th Jul 2025735 AMAQI
25°C21/30°C
14th Jul 2025706 AMAQI
14th Jul 2025757 AMAQI
14th Jul 2025768 AMAQI
14th Jul 2025769 AMAQI
14th Jul 20257410 AMAQI
14th Jul 20257811 AMAQI
14th Jul 20258012 PMAQI
14th Jul 2025801 PMAQI
14th Jul 2025812 PMAQI
14th Jul 2025793 PMAQI
14th Jul 2025784 PMAQI
14th Jul 2025765 PMAQI
14th Jul 2025796 PMAQI
14th Jul 2025737 PMAQI
14th Jul 2025718 PMAQI
14th Jul 2025729 PMAQI
14th Jul 20257210 PMAQI
14th Jul 20257211 PMAQI
15th Jul 20258112 AMAQI
15th Jul 2025871 AMAQI
15th Jul 2025922 AMAQI
15th Jul 2025963 AMAQI
15th Jul 2025884 AMAQI
15th Jul 2025885 AMAQI
25°C19/30°C
15th Jul 2025946 AMAQI
15th Jul 20251137 AMAQI
15th Jul 20251148 AMAQI
15th Jul 20251029 AMAQI
15th Jul 20259710 AMAQI
15th Jul 20259811 AMAQI
15th Jul 20259812 PMAQI
15th Jul 2025941 PMAQI
15th Jul 2025982 PMAQI
15th Jul 2025943 PMAQI
15th Jul 20251024 PMAQI
15th Jul 20251065 PMAQI
15th Jul 2025996 PMAQI
15th Jul 2025967 PMAQI
15th Jul 2025988 PMAQI
15th Jul 2025989 PMAQI
15th Jul 20259410 PMAQI
15th Jul 20259911 PMAQI
16th Jul 20259812 AMAQI
16th Jul 20251021 AMAQI
16th Jul 20251022 AMAQI
16th Jul 20251023 AMAQI
16th Jul 20251004 AMAQI
16th Jul 2025975 AMAQI
24°C16/32°C
16th Jul 2025976 AMAQI
16th Jul 2025927 AMAQI
16th Jul 2025968 AMAQI
16th Jul 2025939 AMAQI
16th Jul 20259210 AMAQI
16th Jul 20258411 AMAQI
16th Jul 20258112 PMAQI
16th Jul 2025821 PMAQI
16th Jul 2025762 PMAQI
16th Jul 2025803 PMAQI
16th Jul 2025764 PMAQI
16th Jul 2025795 PMAQI
16th Jul 2025766 PMAQI
16th Jul 2025847 PMAQI
16th Jul 2025848 PMAQI
16th Jul 2025699 PMAQI
16th Jul 20257210 PMAQI
16th Jul 20257011 PMAQI
17th Jul 20254412 AMAQI
17th Jul 2025401 AMAQI
17th Jul 2025472 AMAQI
17th Jul 2025473 AMAQI
17th Jul 2025414 AMAQI
17th Jul 2025385 AMAQI
23°C17/29°C
17th Jul 2025396 AMAQI
17th Jul 2025427 AMAQI
17th Jul 2025388 AMAQI
17th Jul 2025389 AMAQI
17th Jul 20254310 AMAQI
17th Jul 20255011 AMAQI
17th Jul 20254712 PMAQI
17th Jul 2025381 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025383 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025375 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025387 PMAQI
17th Jul 2025378 PMAQI
17th Jul 2025379 PMAQI
17th Jul 20253810 PMAQI
17th Jul 20253411 PMAQI
18th Jul 20253312 AMAQI
18th Jul 2025341 AMAQI
18th Jul 2025322 AMAQI
18th Jul 2025343 AMAQI
18th Jul 2025334 AMAQI
18th Jul 2025325 AMAQI
22°C18/23°C
18th Jul 2025296 AMAQI
18th Jul 2025327 AMAQI
18th Jul 2025448 AMAQI
18th Jul 2025319 AMAQI
18th Jul 20253410 AMAQI
18th Jul 20253811 AMAQI
18th Jul 20252912 PMAQI
18th Jul 2025301 PMAQI
18th Jul 2025292 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025304 PMAQI
18th Jul 2025305 PMAQI
18th Jul 2025306 PMAQI
18th Jul 2025287 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025289 PMAQI
18th Jul 20252710 PMAQI
18th Jul 20252511 PMAQI
19th Jul 20253512 AMAQI
19th Jul 2025371 AMAQI
19th Jul 2025362 AMAQI
19th Jul 2025383 AMAQI
19th Jul 2025344 AMAQI
19th Jul 2025325 AMAQI
19°C13/25°C
19th Jul 2025346 AMAQI
19th Jul 2025337 AMAQI
19th Jul 2025348 AMAQI
19th Jul 2025319 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20252712 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025342 PMAQI
19th Jul 2025353 PMAQI
19th Jul 2025344 PMAQI
19th Jul 2025345 PMAQI
19th Jul 2025336 PMAQI
19th Jul 2025347 PMAQI
19th Jul 2025358 PMAQI
19th Jul 2025369 PMAQI
19th Jul 20253410 PMAQI
19th Jul 20253211 PMAQI
20th Jul 20252612 AMAQI
20th Jul 2025271 AMAQI
20th Jul 2025292 AMAQI
20th Jul 2025303 AMAQI
20th Jul 2025274 AMAQI
20th Jul 2025285 AMAQI
20°C13/26°C
20th Jul 2025286 AMAQI
20th Jul 2025287 AMAQI
20th Jul 2025308 AMAQI
20th Jul 2025289 AMAQI
20th Jul 20252610 AMAQI
20th Jul 20252611 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025281 PMAQI
20th Jul 2025262 PMAQI
20th Jul 2025293 PMAQI
20th Jul 2025294 PMAQI
20th Jul 2025295 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025287 PMAQI
20th Jul 2025288 PMAQI
20th Jul 2025319 PMAQI
20th Jul 20253310 PMAQI
20th Jul 20253811 PMAQI
21st Jul 20254812 AMAQI
21st Jul 2025521 AMAQI
21st Jul 2025502 AMAQI
21st Jul 2025533 AMAQI
21st Jul 2025474 AMAQI
21st Jul 2025435 AMAQI
21°C17/24°C
21st Jul 2025526 AMAQI
21st Jul 2025547 AMAQI
21st Jul 2025568 AMAQI
21st Jul 2025539 AMAQI
21st Jul 20254810 AMAQI
21st Jul 20254611 AMAQI
21st Jul 20254012 PMAQI
21st Jul 2025401 PMAQI
21st Jul 2025422 PMAQI
21st Jul 2025493 PMAQI
21st Jul 2025504 PMAQI
21st Jul 2025465 PMAQI
21st Jul 2025446 PMAQI
21st Jul 2025507 PMAQI
21st Jul 2025508 PMAQI
21st Jul 2025489 PMAQI
21st Jul 20254610 PMAQI
21st Jul 20254111 PMAQI
22nd Jul 20252212 AMAQI
22nd Jul 2025191 AMAQI
22nd Jul 2025192 AMAQI
22nd Jul 2025183 AMAQI
22nd Jul 2025194 AMAQI
22nd Jul 2025185 AMAQI
19°C15/23°C
22nd Jul 2025206 AMAQI
22nd Jul 2025207 AMAQI
22nd Jul 2025208 AMAQI
22nd Jul 2025219 AMAQI
22nd Jul 20252210 AMAQI
22nd Jul 20252411 AMAQI
22nd Jul 20252412 PMAQI
22nd Jul 2025211 PMAQI
22nd Jul 2025222 PMAQI
22nd Jul 2025233 PMAQI
22nd Jul 2025224 PMAQI
22nd Jul 2025215 PMAQI
22nd Jul 2025216 PMAQI
22nd Jul 2025227 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252210 PMAQI
22nd Jul 20252411 PMAQI
23rd Jul 20252412 AMAQI
23rd Jul 2025241 AMAQI
23rd Jul 2025232 AMAQI
23rd Jul 2025233 AMAQI
23rd Jul 2025284 AMAQI
23rd Jul 2025265 AMAQI
20°C13/27°C
23rd Jul 2025246 AMAQI
23rd Jul 2025247 AMAQI
23rd Jul 2025228 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252410 AMAQI
23rd Jul 20252211 AMAQI
23rd Jul 20252412 PMAQI
23rd Jul 2025271 PMAQI
23rd Jul 2025282 PMAQI
23rd Jul 2025283 PMAQI
23rd Jul 2025284 PMAQI
23rd Jul 2025275 PMAQI
23rd Jul 2025286 PMAQI
23rd Jul 2025267 PMAQI
23rd Jul 2025278 PMAQI
23rd Jul 2025299 PMAQI
23rd Jul 20253010 PMAQI
23rd Jul 20253411 PMAQI
24th Jul 20253612 AMAQI
24th Jul 2025331 AMAQI
24th Jul 2025312 AMAQI
24th Jul 2025313 AMAQI
24th Jul 2025324 AMAQI
24th Jul 2025345 AMAQI
22°C14/30°C
24th Jul 2025426 AMAQI
24th Jul 2025497 AMAQI
24th Jul 2025538 AMAQI
24th Jul 2025539 AMAQI
24th Jul 20255410 AMAQI
24th Jul 20255411 AMAQI
24th Jul 20255512 PMAQI
24th Jul 2025531 PMAQI
24th Jul 2025522 PMAQI
24th Jul 2025503 PMAQI
24th Jul 2025524 PMAQI
24th Jul 2025515 PMAQI
24th Jul 2025516 PMAQI
24th Jul 2025507 PMAQI
24th Jul 2025498 PMAQI
24th Jul 2025419 PMAQI
24th Jul 20254010 PMAQI
24th Jul 20253811 PMAQI
25th Jul 20253212 AMAQI
25th Jul 2025301 AMAQI
25th Jul 2025282 AMAQI
25th Jul 2025283 AMAQI
25th Jul 2025294 AMAQI
25th Jul 2025305 AMAQI
26°C18/34°C
25th Jul 2025306 AMAQI
25th Jul 2025307 AMAQI
25th Jul 2025298 AMAQI
25th Jul 2025299 AMAQI
25th Jul 20252710 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20252812 PMAQI
25th Jul 2025321 PMAQI
25th Jul 2025342 PMAQI
25th Jul 2025343 PMAQI
25th Jul 2025324 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025336 PMAQI
25th Jul 2025347 PMAQI
25th Jul 2025348 PMAQI
25th Jul 2025409 PMAQI
25th Jul 20253910 PMAQI
25th Jul 20254011 PMAQI
26th Jul 20255412 AMAQI
26th Jul 2025611 AMAQI
26th Jul 2025642 AMAQI
26th Jul 2025623 AMAQI
26th Jul 2025614 AMAQI
26th Jul 2025665 AMAQI
22°C19/24°C
26th Jul 2025626 AMAQI
26th Jul 2025627 AMAQI
26th Jul 2025618 AMAQI
26th Jul 2025589 AMAQI
26th Jul 20255610 AMAQI
26th Jul 20255511 AMAQI
26th Jul 20255312 PMAQI
26th Jul 2025521 PMAQI
26th Jul 2025542 PMAQI
26th Jul 2025563 PMAQI
26th Jul 2025564 PMAQI
26th Jul 2025555 PMAQI
26th Jul 2025556 PMAQI
26th Jul 2025567 PMAQI
26th Jul 2025578 PMAQI
26th Jul 2025569 PMAQI
26th Jul 20255510 PMAQI
26th Jul 20254911 PMAQI
27th Jul 20253312 AMAQI
27th Jul 2025311 AMAQI
27th Jul 2025282 AMAQI
27th Jul 2025293 AMAQI
27th Jul 2025284 AMAQI
27th Jul 2025305 AMAQI
23°C19/27°C
27th Jul 2025306 AMAQI
27th Jul 2025307 AMAQI
27th Jul 2025308 AMAQI
27th Jul 2025299 AMAQI
27th Jul 20253110 AMAQI
27th Jul 20253211 AMAQI
27th Jul 20253212 PMAQI
27th Jul 2025351 PMAQI
27th Jul 2025342 PMAQI
27th Jul 2025343 PMAQI
27th Jul 2025334 PMAQI
27th Jul 2025345 PMAQI
27th Jul 2025326 PMAQI
27th Jul 2025327 PMAQI
27th Jul 2025328 PMAQI
27th Jul 2025329 PMAQI
27th Jul 20253410 PMAQI
27th Jul 20253811 PMAQI
28th Jul 20254912 AMAQI
28th Jul 2025521 AMAQI
28th Jul 2025472 AMAQI
28th Jul 2025443 AMAQI
28th Jul 2025414 AMAQI
28th Jul 2025395 AMAQI
24°C21/29°C
28th Jul 2025406 AMAQI
28th Jul 2025437 AMAQI
28th Jul 2025468 AMAQI
28th Jul 2025489 AMAQI
28th Jul 20254810 AMAQI
28th Jul 20254411 AMAQI
28th Jul 20254412 PMAQI
28th Jul 2025431 PMAQI
28th Jul 2025442 PMAQI
28th Jul 2025463 PMAQI
28th Jul 2025474 PMAQI
28th Jul 2025465 PMAQI
28th Jul 2025466 PMAQI
28th Jul 2025447 PMAQI
28th Jul 2025438 PMAQI
28th Jul 2025449 PMAQI
28th Jul 20254410 PMAQI
28th Jul 20254311 PMAQI
29th Jul 20253812 AMAQI
29th Jul 2025281 AMAQI
29th Jul 2025332 AMAQI
29th Jul 2025333 AMAQI
29th Jul 2025334 AMAQI
29th Jul 2025365 AMAQI
26°C19/33°C
29th Jul 2025406 AMAQI
29th Jul 2025427 AMAQI
29th Jul 2025428 AMAQI
29th Jul 2025439 AMAQI
29th Jul 20254310 AMAQI
29th Jul 20254211 AMAQI
29th Jul 20254112 PMAQI
29th Jul 2025421 PMAQI
29th Jul 2025422 PMAQI
29th Jul 2025423 PMAQI
29th Jul 2025444 PMAQI
29th Jul 2025425 PMAQI
29th Jul 2025416 PMAQI
29th Jul 2025387 PMAQI
29th Jul 2025378 PMAQI
29th Jul 2025399 PMAQI
29th Jul 20253910 PMAQI
29th Jul 20254211 PMAQI
30th Jul 20254212 AMAQI
30th Jul 2025461 AMAQI
30th Jul 2025482 AMAQI
30th Jul 2025483 AMAQI
30th Jul 2025494 AMAQI
30th Jul 2025455 AMAQI
22°C19/26°C
30th Jul 2025426 AMAQI
30th Jul 2025447 AMAQI
30th Jul 2025408 AMAQI
30th Jul 2025439 AMAQI
30th Jul 20254510 AMAQI
30th Jul 20255111 AMAQI
30th Jul 20255312 PMAQI
30th Jul 2025551 PMAQI
30th Jul 2025562 PMAQI
30th Jul 2025563 PMAQI
30th Jul 2025564 PMAQI
30th Jul 2025565 PMAQI
30th Jul 2025566 PMAQI
30th Jul 2025567 PMAQI
30th Jul 2025568 PMAQI
30th Jul 2025549 PMAQI
30th Jul 20255210 PMAQI
30th Jul 20255611 PMAQI
31st Jul 20257112 AMAQI
31st Jul 2025911 AMAQI
31st Jul 20251012 AMAQI
31st Jul 2025933 AMAQI
31st Jul 20251114 AMAQI
31st Jul 20251095 AMAQI
22°C19/25°C
31st Jul 20251216 AMAQI
31st Jul 20251337 AMAQI
31st Jul 20251008 AMAQI
31st Jul 2025729 AMAQI
31st Jul 202510410 AMAQI
31st Jul 202513911 AMAQI
31st Jul 202515112 PMAQI
31st Jul 20251481 PMAQI
31st Jul 20251542 PMAQI
31st Jul 20251563 PMAQI
31st Jul 20251524 PMAQI
31st Jul 20251525 PMAQI
31st Jul 20251406 PMAQI
31st Jul 20251467 PMAQI
31st Jul 20251248 PMAQI
31st Jul 20251119 PMAQI
31st Jul 202512510 PMAQI
31st Jul 202511811 PMAQI
1st Aug 202510212 AMAQI
1st Aug 2025951 AMAQI
1st Aug 2025922 AMAQI
1st Aug 2025863 AMAQI
1st Aug 2025844 AMAQI
1st Aug 2025845 AMAQI
20°C18/23°C
1st Aug 2025776 AMAQI
1st Aug 2025707 AMAQI
1st Aug 2025658 AMAQI
1st Aug 2025659 AMAQI
1st Aug 20256110 AMAQI
1st Aug 20255711 AMAQI
1st Aug 20255812 PMAQI
1st Aug 2025581 PMAQI
1st Aug 2025572 PMAQI
1st Aug 2025513 PMAQI
1st Aug 2025424 PMAQI
1st Aug 2025345 PMAQI
1st Aug 2025386 PMAQI
1st Aug 2025667 PMAQI
1st Aug 2025478 PMAQI
1st Aug 2025279 PMAQI
1st Aug 20253210 PMAQI
1st Aug 20253611 PMAQI
2nd Aug 20253912 AMAQI
2nd Aug 2025421 AMAQI
2nd Aug 2025372 AMAQI
2nd Aug 2025383 AMAQI
2nd Aug 2025404 AMAQI
2nd Aug 2025385 AMAQI
20°C15/25°C
2nd Aug 2025396 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025428 AMAQI
2nd Aug 2025389 AMAQI
2nd Aug 20253510 AMAQI
2nd Aug 20253011 AMAQI
2nd Aug 20252812 PMAQI
2nd Aug 2025301 PMAQI
2nd Aug 2025392 PMAQI
2nd Aug 2025493 PMAQI
2nd Aug 2025524 PMAQI
2nd Aug 2025575 PMAQI
2nd Aug 2025576 PMAQI
2nd Aug 2025447 PMAQI
2nd Aug 2025528 PMAQI
2nd Aug 2025699 PMAQI
2nd Aug 20257810 PMAQI
2nd Aug 20258511 PMAQI
3rd Aug 20258312 AMAQI
3rd Aug 2025861 AMAQI
3rd Aug 2025862 AMAQI
3rd Aug 2025873 AMAQI
3rd Aug 2025844 AMAQI
3rd Aug 2025805 AMAQI
19°C13/27°C
3rd Aug 2025796 AMAQI
3rd Aug 2025807 AMAQI
3rd Aug 2025828 AMAQI
3rd Aug 2025829 AMAQI
3rd Aug 20259010 AMAQI
3rd Aug 20259811 AMAQI
3rd Aug 20259312 PMAQI
3rd Aug 20251001 PMAQI
3rd Aug 20251052 PMAQI
3rd Aug 20251203 PMAQI
3rd Aug 20251194 PMAQI
3rd Aug 20251105 PMAQI
3rd Aug 20251036 PMAQI
3rd Aug 2025937 PMAQI
3rd Aug 20251178 PMAQI
3rd Aug 20251319 PMAQI
3rd Aug 202512410 PMAQI
3rd Aug 202514311 PMAQI
4th Aug 202513412 AMAQI
4th Aug 20251291 AMAQI
4th Aug 20251402 AMAQI
4th Aug 20251413 AMAQI
4th Aug 20251474 AMAQI
4th Aug 20251355 AMAQI
21°C13/28°C
4th Aug 20251386 AMAQI
6 AM4th Aug 20251507 AMAQI
4th Aug 20251538 AMAQI
4th Aug 20251539 AMAQI
1 PM
9 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
7 AM - 9 PM
52AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 9 PM
52AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 9 PM (Avg. 52), while the lowest AQI was between 6 AM to 9 PM (Avg. 52).
Night time
Avg. Highest Time
12 AM - 11 PM
52AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
52AQI
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. 52), while the lowest AQI was between 12 AM to 11 PM (Avg. 52).
2025 Days Vs Air Quality
Sarnia, Port Huron, Michigan, United States
2025
85%
183
14%
31
0.4%
1
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
183 DaysModerate
31 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 216 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Sarnia, Port Huron, Michigan, United States
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
20AQI
20AQI
2nd January 2025
24AQI
24AQI
3rd January 2025
23AQI
23AQI
4th January 2025
26AQI
26AQI
5th January 2025
24AQI
24AQI
6th January 2025
24AQI
24AQI
7th January 2025
25AQI
25AQI
8th January 2025
26AQI
26AQI
9th January 2025
29AQI
29AQI
10th January 2025
59AQI
59AQI
11th January 2025
58AQI
58AQI
12th January 2025
52AQI
52AQI
13th January 2025
30AQI
30AQI
14th January 2025
25AQI
25AQI
15th January 2025
27AQI
27AQI
16th January 2025
53AQI
53AQI
17th January 2025
37AQI
37AQI
18th January 2025
30AQI
30AQI
19th January 2025
27AQI
27AQI
20th January 2025
24AQI
24AQI
21st January 2025
25AQI
25AQI
22nd January 2025
29AQI
29AQI
23rd January 2025
42AQI
42AQI
24th January 2025
34AQI
34AQI
25th January 2025
52AQI
52AQI
26th January 2025
27AQI
27AQI
27th January 2025
26AQI
26AQI
28th January 2025
28AQI
28AQI
29th January 2025
27AQI
27AQI
30th January 2025
29AQI
29AQI
31st January 2025
49AQI
49AQI
1st February 2025
27AQI
27AQI
2nd February 2025
36AQI
36AQI
3rd February 2025
53AQI
53AQI
4th February 2025
25AQI
25AQI
5th February 2025
24AQI
24AQI
6th February 2025
33AQI
33AQI
7th February 2025
28AQI
28AQI
8th February 2025
42AQI
42AQI
9th February 2025
34AQI
34AQI
10th February 2025
37AQI
37AQI
11th February 2025
43AQI
43AQI
12th February 2025
31AQI
31AQI
13th February 2025
29AQI
29AQI
14th February 2025
42AQI
42AQI
15th February 2025
52AQI
52AQI
16th February 2025
38AQI
38AQI
17th February 2025
27AQI
27AQI
18th February 2025
26AQI
26AQI
19th February 2025
26AQI
26AQI
20th February 2025
23AQI
23AQI
21st February 2025
29AQI
29AQI
22nd February 2025
53AQI
53AQI
23rd February 2025
60AQI
60AQI
24th February 2025
56AQI
56AQI
25th February 2025
44AQI
44AQI
26th February 2025
36AQI
36AQI
27th February 2025
52AQI
52AQI
28th February 2025
24AQI
24AQI
1st March 2025
30AQI
30AQI
2nd March 2025
29AQI
29AQI
3rd March 2025
35AQI
35AQI
4th March 2025
37AQI
37AQI
5th March 2025
29AQI
29AQI
6th March 2025
29AQI
29AQI
7th March 2025
30AQI
30AQI
8th March 2025
31AQI
31AQI
9th March 2025
29AQI
29AQI
10th March 2025
35AQI
35AQI
11th March 2025
31AQI
31AQI
12th March 2025
29AQI
29AQI
13th March 2025
31AQI
31AQI
14th March 2025
50AQI
50AQI
15th March 2025
43AQI
43AQI
16th March 2025
22AQI
22AQI
17th March 2025
17AQI
17AQI
18th March 2025
25AQI
25AQI
19th March 2025
33AQI
33AQI
20th March 2025
22AQI
22AQI
21st March 2025
21AQI
21AQI
22nd March 2025
18AQI
18AQI
23rd March 2025
17AQI
17AQI
24th March 2025
20AQI
20AQI
25th March 2025
18AQI
18AQI
26th March 2025
19AQI
19AQI
27th March 2025
36AQI
36AQI
28th March 2025
39AQI
39AQI
29th March 2025
37AQI
37AQI
30th March 2025
39AQI
39AQI
31st March 2025
20AQI
20AQI
1st April 2025
17AQI
17AQI
2nd April 2025
19AQI
19AQI
3rd April 2025
20AQI
20AQI
4th April 2025
18AQI
18AQI
5th April 2025
19AQI
19AQI
6th April 2025
18AQI
18AQI
7th April 2025
19AQI
19AQI
8th April 2025
15AQI
15AQI
9th April 2025
28AQI
28AQI
10th April 2025
29AQI
29AQI
11th April 2025
28AQI
28AQI
12th April 2025
21AQI
21AQI
13th April 2025
36AQI
36AQI
14th April 2025
24AQI
24AQI
15th April 2025
14AQI
14AQI
16th April 2025
16AQI
16AQI
17th April 2025
25AQI
25AQI
18th April 2025
42AQI
42AQI
19th April 2025
36AQI
36AQI
20th April 2025
16AQI
16AQI
21st April 2025
22AQI
22AQI
22nd April 2025
16AQI
16AQI
23rd April 2025
38AQI
38AQI
24th April 2025
48AQI
48AQI
25th April 2025
37AQI
37AQI
26th April 2025
18AQI
18AQI
27th April 2025
20AQI
20AQI
28th April 2025
24AQI
24AQI
29th April 2025
34AQI
34AQI
30th April 2025
15AQI
15AQI
1st May 2025
25AQI
25AQI
2nd May 2025
22AQI
22AQI
3rd May 2025
16AQI
16AQI
4th May 2025
17AQI
17AQI
5th May 2025
22AQI
22AQI
6th May 2025
28AQI
28AQI
7th May 2025
24AQI
24AQI
8th May 2025
17AQI
17AQI
9th May 2025
19AQI
19AQI
10th May 2025
30AQI
30AQI
11th May 2025
21AQI
21AQI
12th May 2025
34AQI
34AQI
13th May 2025
24AQI
24AQI
14th May 2025
19AQI
19AQI
15th May 2025
26AQI
26AQI
16th May 2025
30AQI
30AQI
17th May 2025
22AQI
22AQI
18th May 2025
16AQI
16AQI
19th May 2025
13AQI
13AQI
20th May 2025
16AQI
16AQI
21st May 2025
20AQI
20AQI
22nd May 2025
12AQI
12AQI
23rd May 2025
11AQI
11AQI
24th May 2025
13AQI
13AQI
25th May 2025
26AQI
26AQI
26th May 2025
25AQI
25AQI
27th May 2025
27AQI
27AQI
28th May 2025
18AQI
18AQI
29th May 2025
30AQI
30AQI
30th May 2025
36AQI
36AQI
31st May 2025
24AQI
24AQI
1st June 2025
23AQI
23AQI
2nd June 2025
29AQI
29AQI
3rd June 2025
48AQI
48AQI
4th June 2025
70AQI
70AQI
5th June 2025
75AQI
75AQI
6th June 2025
85AQI
85AQI
7th June 2025
72AQI
72AQI
8th June 2025
95AQI
95AQI
9th June 2025
81AQI
81AQI
10th June 2025
54AQI
54AQI
11th June 2025
71AQI
71AQI
12th June 2025
77AQI
77AQI
13th June 2025
40AQI
40AQI
14th June 2025
35AQI
35AQI
15th June 2025
33AQI
33AQI
16th June 2025
34AQI
34AQI
17th June 2025
38AQI
38AQI
18th June 2025
33AQI
33AQI
19th June 2025
21AQI
21AQI
20th June 2025
36AQI
36AQI
21st June 2025
37AQI
37AQI
22nd June 2025
40AQI
40AQI
23rd June 2025
52AQI
52AQI
24th June 2025
53AQI
53AQI
25th June 2025
38AQI
38AQI
26th June 2025
49AQI
49AQI
27th June 2025
41AQI
41AQI
28th June 2025
29AQI
29AQI
29th June 2025
42AQI
42AQI
30th June 2025
33AQI
33AQI
1st July 2025
31AQI
31AQI
2nd July 2025
40AQI
40AQI
3rd July 2025
50AQI
50AQI
4th July 2025
44AQI
44AQI
5th July 2025
53AQI
53AQI
6th July 2025
54AQI
54AQI
7th July 2025
30AQI
30AQI
8th July 2025
40AQI
40AQI
9th July 2025
56AQI
56AQI
10th July 2025
42AQI
42AQI
11th July 2025
49AQI
49AQI
12th July 2025
39AQI
39AQI
13th July 2025
42AQI
42AQI
14th July 2025
73AQI
73AQI
15th July 2025
96AQI
96AQI
16th July 2025
87AQI
87AQI
17th July 2025
40AQI
40AQI
18th July 2025
31AQI
31AQI
19th July 2025
34AQI
34AQI
20th July 2025
29AQI
29AQI
21st July 2025
48AQI
48AQI
22nd July 2025
21AQI
21AQI
23rd July 2025
26AQI
26AQI
24th July 2025
44AQI
44AQI
25th July 2025
32AQI
32AQI
26th July 2025
58AQI
58AQI
27th July 2025
32AQI
32AQI
28th July 2025
45AQI
45AQI
29th July 2025
38AQI
38AQI
30th July 2025
50AQI
50AQI
31st July 2025
119AQI
119AQI
1st August 2025
63AQI
63AQI
2nd August 2025
46AQI
46AQI
3rd August 2025
89AQI
89AQI
33AQI
37AQI
29AQI
24AQI
22AQI
49AQI
48AQI
66AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202535AQI
26
5
22
6
31
30
31
19
11
23
7
1
1
2
183
31
1
Highest AQI recorded in
August66AQI
Lowest AQI recorded in
May22AQI
202433AQI
24
7
24
5
31
30
31
29
30
1
27
4
30
26
5
29
1
31
342
23
Highest AQI recorded in
January38AQI
Lowest AQI recorded in
November28AQI
202341AQI
26
5
24
4
28
3
25
5
29
2
9
14
6
1
20
11
21
10
27
3
27
4
25
4
22
9
283
74
6
1
Highest AQI recorded in
June76AQI
Lowest AQI recorded in
October32AQI
202235AQI
27
4
18
3
27
4
27
2
29
2
23
7
18
5
1
26
2
29
2
24
6
28
3
277
40
Highest AQI recorded in
June40AQI
Lowest AQI recorded in
August24AQI
202136AQI
26
4
26
2
27
4
25
5
26
5
23
7
25
6
21
10
27
3
29
2
26
4
27
4
308
56
Highest AQI recorded in
August44AQI
Lowest AQI recorded in
November31AQI
202034AQI
12
1
21
18
24
6
26
5
27
4
25
5
30
1
24
6
24
7
231
35
Highest AQI recorded in
June38AQI
Lowest AQI recorded in
October26AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
41AQILeast Polluted Year Recorded
2024(Avg.)
33AQISarnia's annual 2025 AQI (35) shows an average percentage change of -2.4% (improved AQI) compared to previous years: 2020 (34), 2021 (36), 2022 (35), 2023 (41), 2024 (33).
