Duluth, Minnesota, 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
Duluth, Minnesota, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
162AQILowest AQI recorded on
28th Aug 2021
11AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 162 of Unhealthy air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Duluth, Minnesota, United States
AQI
Day
Night
.
5 AM1st Aug 2025
8 PM
4 AM2nd Aug 2025
Day time
Avg. Highest Time
8AM1st Aug
165AQI
Avg. Lowest Time
6PM1st Aug
159AQI
Night time
Avg. Highest Time
10PM1st Aug
160AQI
Avg. Lowest Time
3AM2nd Aug
156AQI
In the last 24 hours,
Duluth's AQI reached its highest point of 165 at 8 AM during the Day, while the lowest point, 156, was recorded at 3 AM during the Night between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Duluth, Minnesota, United States
JulAug
03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd
Day
Night
3rd Jul 2025505 AMAQI
3rd Jul 2025506 AMAQI
3rd Jul 2025477 AMAQI
3rd Jul 2025438 AMAQI
3rd Jul 2025479 AMAQI
3rd Jul 20255310 AMAQI
3rd Jul 20255311 AMAQI
3rd Jul 20254912 PMAQI
3rd Jul 2025471 PMAQI
3rd Jul 2025482 PMAQI
3rd Jul 2025413 PMAQI
3rd Jul 2025424 PMAQI
3rd Jul 2025425 PMAQI
3rd Jul 2025426 PMAQI
3rd Jul 2025427 PMAQI
3rd Jul 2025438 PMAQI
3rd Jul 2025409 PMAQI
3rd Jul 20253910 PMAQI
3rd Jul 20254111 PMAQI
4th Jul 20254412 AMAQI
4th Jul 2025421 AMAQI
4th Jul 2025432 AMAQI
4th Jul 2025363 AMAQI
4th Jul 2025404 AMAQI
18°C12/23°C
4th Jul 2025425 AMAQI
4th Jul 2025436 AMAQI
4th Jul 2025457 AMAQI
4th Jul 2025458 AMAQI
4th Jul 2025459 AMAQI
4th Jul 20254510 AMAQI
4th Jul 20254311 AMAQI
4th Jul 20254412 PMAQI
4th Jul 2025461 PMAQI
4th Jul 2025462 PMAQI
4th Jul 2025473 PMAQI
4th Jul 2025484 PMAQI
4th Jul 2025455 PMAQI
4th Jul 2025486 PMAQI
4th Jul 2025467 PMAQI
4th Jul 2025448 PMAQI
4th Jul 2025459 PMAQI
4th Jul 20254810 PMAQI
4th Jul 20254911 PMAQI
5th Jul 20254912 AMAQI
5th Jul 2025421 AMAQI
5th Jul 2025272 AMAQI
5th Jul 2025303 AMAQI
5th Jul 2025234 AMAQI
24°C14/34°C
5th Jul 2025215 AMAQI
5th Jul 2025256 AMAQI
5th Jul 2025277 AMAQI
5th Jul 2025288 AMAQI
5th Jul 2025279 AMAQI
5th Jul 20252810 AMAQI
5th Jul 20253111 AMAQI
5th Jul 20253012 PMAQI
5th Jul 2025311 PMAQI
5th Jul 2025302 PMAQI
5th Jul 2025313 PMAQI
5th Jul 2025304 PMAQI
5th Jul 2025305 PMAQI
5th Jul 2025336 PMAQI
5th Jul 2025347 PMAQI
5th Jul 2025358 PMAQI
5th Jul 2025389 PMAQI
5th Jul 20253210 PMAQI
5th Jul 20253611 PMAQI
6th Jul 20254712 AMAQI
6th Jul 2025451 AMAQI
6th Jul 2025502 AMAQI
6th Jul 2025523 AMAQI
6th Jul 2025564 AMAQI
24°C21/27°C
6th Jul 2025575 AMAQI
6th Jul 2025566 AMAQI
6th Jul 2025597 AMAQI
6th Jul 2025608 AMAQI
6th Jul 2025589 AMAQI
6th Jul 20255910 AMAQI
6th Jul 20255411 AMAQI
6th Jul 20255312 PMAQI
6th Jul 2025491 PMAQI
6th Jul 2025452 PMAQI
6th Jul 2025483 PMAQI
6th Jul 2025464 PMAQI
6th Jul 2025465 PMAQI
6th Jul 2025486 PMAQI
6th Jul 2025527 PMAQI
6th Jul 2025518 PMAQI
6th Jul 2025459 PMAQI
6th Jul 20254510 PMAQI
6th Jul 20254311 PMAQI
7th Jul 20254612 AMAQI
7th Jul 2025421 AMAQI
7th Jul 2025302 AMAQI
7th Jul 2025283 AMAQI
7th Jul 2025304 AMAQI
17°C12/20°C
7th Jul 2025305 AMAQI
7th Jul 2025286 AMAQI
7th Jul 2025317 AMAQI
7th Jul 2025318 AMAQI
7th Jul 2025309 AMAQI
7th Jul 20253110 AMAQI
7th Jul 20253311 AMAQI
7th Jul 20253412 PMAQI
7th Jul 2025351 PMAQI
7th Jul 2025362 PMAQI
7th Jul 2025363 PMAQI
7th Jul 2025364 PMAQI
7th Jul 2025355 PMAQI
7th Jul 2025366 PMAQI
7th Jul 2025337 PMAQI
7th Jul 2025348 PMAQI
7th Jul 2025359 PMAQI
7th Jul 20253510 PMAQI
7th Jul 20253511 PMAQI
8th Jul 20253512 AMAQI
8th Jul 2025331 AMAQI
8th Jul 2025312 AMAQI
8th Jul 2025303 AMAQI
8th Jul 2025294 AMAQI
17°C9/25°C
8th Jul 2025325 AMAQI
8th Jul 2025346 AMAQI
8th Jul 2025327 AMAQI
8th Jul 2025318 AMAQI
8th Jul 2025339 AMAQI
8th Jul 20253210 AMAQI
8th Jul 20253511 AMAQI
8th Jul 20253812 PMAQI
8th Jul 2025401 PMAQI
8th Jul 2025372 PMAQI
8th Jul 2025383 PMAQI
8th Jul 2025384 PMAQI
8th Jul 2025405 PMAQI
8th Jul 2025396 PMAQI
8th Jul 2025347 PMAQI
8th Jul 2025338 PMAQI
8th Jul 2025329 PMAQI
8th Jul 20253110 PMAQI
8th Jul 20253411 PMAQI
9th Jul 20253512 AMAQI
9th Jul 2025341 AMAQI
9th Jul 2025312 AMAQI
9th Jul 2025323 AMAQI
9th Jul 2025324 AMAQI
16°C12/24°C
9th Jul 2025325 AMAQI
9th Jul 2025326 AMAQI
9th Jul 2025337 AMAQI
9th Jul 2025358 AMAQI
9th Jul 2025349 AMAQI
9th Jul 20253310 AMAQI
9th Jul 20253411 AMAQI
9th Jul 20253412 PMAQI
9th Jul 2025341 PMAQI
9th Jul 2025362 PMAQI
9th Jul 2025373 PMAQI
9th Jul 2025364 PMAQI
9th Jul 2025365 PMAQI
9th Jul 2025356 PMAQI
9th Jul 2025367 PMAQI
9th Jul 2025348 PMAQI
9th Jul 2025349 PMAQI
9th Jul 20253310 PMAQI
9th Jul 20253511 PMAQI
10th Jul 20253512 AMAQI
10th Jul 2025341 AMAQI
10th Jul 2025312 AMAQI
10th Jul 2025293 AMAQI
10th Jul 2025304 AMAQI
16°C11/22°C
10th Jul 2025305 AMAQI
10th Jul 2025306 AMAQI
10th Jul 2025317 AMAQI
10th Jul 2025318 AMAQI
10th Jul 2025329 AMAQI
10th Jul 20253210 AMAQI
10th Jul 20253211 AMAQI
10th Jul 20253212 PMAQI
10th Jul 2025321 PMAQI
10th Jul 2025342 PMAQI
10th Jul 2025343 PMAQI
10th Jul 2025344 PMAQI
10th Jul 2025355 PMAQI
10th Jul 2025366 PMAQI
10th Jul 2025337 PMAQI
10th Jul 2025338 PMAQI
10th Jul 2025339 PMAQI
10th Jul 20253410 PMAQI
10th Jul 20253511 PMAQI
11th Jul 20253412 AMAQI
11th Jul 2025341 AMAQI
11th Jul 2025322 AMAQI
11th Jul 2025333 AMAQI
11th Jul 2025324 AMAQI
16°C10/21°C
11th Jul 2025345 AMAQI
11th Jul 2025336 AMAQI
11th Jul 2025347 AMAQI
11th Jul 2025348 AMAQI
11th Jul 2025389 AMAQI
11th Jul 20254110 AMAQI
11th Jul 20254211 AMAQI
11th Jul 20253912 PMAQI
11th Jul 2025391 PMAQI
11th Jul 2025372 PMAQI
11th Jul 2025373 PMAQI
11th Jul 2025394 PMAQI
11th Jul 2025385 PMAQI
11th Jul 2025386 PMAQI
11th Jul 2025367 PMAQI
11th Jul 2025358 PMAQI
11th Jul 2025369 PMAQI
11th Jul 20253510 PMAQI
11th Jul 20253811 PMAQI
12th Jul 20254212 AMAQI
12th Jul 2025481 AMAQI
12th Jul 2025932 AMAQI
12th Jul 2025823 AMAQI
12th Jul 2025844 AMAQI
21°C12/30°C
12th Jul 2025845 AMAQI
12th Jul 2025826 AMAQI
12th Jul 2025607 AMAQI
12th Jul 2025708 AMAQI
12th Jul 20251139 AMAQI
12th Jul 202515710 AMAQI
12th Jul 202513011 AMAQI
12th Jul 20259512 PMAQI
12th Jul 20251281 PMAQI
12th Jul 2025892 PMAQI
12th Jul 20251293 PMAQI
12th Jul 20251244 PMAQI
12th Jul 2025905 PMAQI
12th Jul 20251026 PMAQI
12th Jul 2025857 PMAQI
12th Jul 2025958 PMAQI
12th Jul 20251129 PMAQI
12th Jul 20259210 PMAQI
12th Jul 202511111 PMAQI
13th Jul 202510612 AMAQI
13th Jul 20251181 AMAQI
13th Jul 20251282 AMAQI
13th Jul 20251103 AMAQI
13th Jul 20251334 AMAQI
21°C17/27°C
13th Jul 20251345 AMAQI
13th Jul 20251396 AMAQI
13th Jul 20251207 AMAQI
13th Jul 20251188 AMAQI
13th Jul 20251129 AMAQI
13th Jul 202510810 AMAQI
13th Jul 202513811 AMAQI
13th Jul 202513112 PMAQI
13th Jul 20251171 PMAQI
13th Jul 20251172 PMAQI
13th Jul 20251103 PMAQI
13th Jul 20251074 PMAQI
13th Jul 2025965 PMAQI
13th Jul 2025976 PMAQI
13th Jul 20251207 PMAQI
13th Jul 20251228 PMAQI
13th Jul 20251009 PMAQI
13th Jul 202510710 PMAQI
13th Jul 20259411 PMAQI
14th Jul 20259912 AMAQI
14th Jul 2025971 AMAQI
14th Jul 2025652 AMAQI
14th Jul 2025873 AMAQI
14th Jul 20251034 AMAQI
23°C14/31°C
14th Jul 20251185 AMAQI
14th Jul 20251176 AMAQI
14th Jul 20251277 AMAQI
14th Jul 20251248 AMAQI
14th Jul 20251289 AMAQI
14th Jul 202511710 AMAQI
14th Jul 202513711 AMAQI
14th Jul 202514012 PMAQI
14th Jul 20251281 PMAQI
14th Jul 20251192 PMAQI
14th Jul 20251083 PMAQI
14th Jul 20251014 PMAQI
14th Jul 20251015 PMAQI
14th Jul 2025976 PMAQI
14th Jul 20251077 PMAQI
14th Jul 20251138 PMAQI
14th Jul 2025979 PMAQI
14th Jul 20259310 PMAQI
14th Jul 20259611 PMAQI
15th Jul 20259512 AMAQI
15th Jul 2025921 AMAQI
15th Jul 2025932 AMAQI
15th Jul 2025943 AMAQI
15th Jul 2025994 AMAQI
24°C15/32°C
15th Jul 2025955 AMAQI
15th Jul 2025926 AMAQI
15th Jul 2025887 AMAQI
15th Jul 2025878 AMAQI
15th Jul 2025859 AMAQI
15th Jul 20257810 AMAQI
15th Jul 20257911 AMAQI
15th Jul 20257712 PMAQI
15th Jul 2025731 PMAQI
15th Jul 2025732 PMAQI
15th Jul 2025763 PMAQI
15th Jul 2025804 PMAQI
15th Jul 2025795 PMAQI
15th Jul 2025796 PMAQI
15th Jul 2025847 PMAQI
15th Jul 2025828 PMAQI
15th Jul 2025739 PMAQI
15th Jul 20257310 PMAQI
15th Jul 20257211 PMAQI
16th Jul 20257112 AMAQI
16th Jul 2025671 AMAQI
16th Jul 2025592 AMAQI
16th Jul 2025593 AMAQI
16th Jul 2025534 AMAQI
21°C17/31°C
16th Jul 2025535 AMAQI
16th Jul 2025556 AMAQI
16th Jul 2025547 AMAQI
16th Jul 2025498 AMAQI
16th Jul 2025449 AMAQI
16th Jul 20254110 AMAQI
16th Jul 20254211 AMAQI
16th Jul 20254112 PMAQI
16th Jul 2025421 PMAQI
16th Jul 2025432 PMAQI
16th Jul 2025423 PMAQI
16th Jul 2025434 PMAQI
16th Jul 2025435 PMAQI
16th Jul 2025426 PMAQI
16th Jul 2025497 PMAQI
16th Jul 2025498 PMAQI
16th Jul 2025409 PMAQI
16th Jul 20254110 PMAQI
16th Jul 20253711 PMAQI
17th Jul 20253712 AMAQI
17th Jul 2025361 AMAQI
17th Jul 2025342 AMAQI
17th Jul 2025363 AMAQI
17th Jul 2025364 AMAQI
14°C12/15°C
17th Jul 2025355 AMAQI
17th Jul 2025346 AMAQI
17th Jul 2025307 AMAQI
17th Jul 2025308 AMAQI
17th Jul 2025319 AMAQI
17th Jul 20253210 AMAQI
17th Jul 20253111 AMAQI
17th Jul 20253312 PMAQI
17th Jul 2025361 PMAQI
17th Jul 2025372 PMAQI
17th Jul 2025373 PMAQI
17th Jul 2025374 PMAQI
17th Jul 2025365 PMAQI
17th Jul 2025356 PMAQI
17th Jul 2025307 PMAQI
17th Jul 2025328 PMAQI
17th Jul 2025439 PMAQI
17th Jul 20254610 PMAQI
17th Jul 20255111 PMAQI
18th Jul 20254912 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025502 AMAQI
18th Jul 2025463 AMAQI
18th Jul 2025464 AMAQI
16°C9/24°C
18th Jul 2025405 AMAQI
18th Jul 2025386 AMAQI
18th Jul 2025407 AMAQI
18th Jul 2025398 AMAQI
18th Jul 2025419 AMAQI
18th Jul 20254110 AMAQI
18th Jul 20254111 AMAQI
18th Jul 20254712 PMAQI
18th Jul 2025461 PMAQI
18th Jul 2025442 PMAQI
18th Jul 2025443 PMAQI
18th Jul 2025454 PMAQI
18th Jul 2025435 PMAQI
18th Jul 2025436 PMAQI
18th Jul 2025437 PMAQI
18th Jul 2025428 PMAQI
18th Jul 2025399 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254011 PMAQI
19th Jul 20254012 AMAQI
19th Jul 2025381 AMAQI
19th Jul 2025342 AMAQI
19th Jul 2025353 AMAQI
19th Jul 2025334 AMAQI
14°C7/19°C
19th Jul 2025315 AMAQI
19th Jul 2025326 AMAQI
19th Jul 2025307 AMAQI
19th Jul 2025288 AMAQI
19th Jul 2025289 AMAQI
19th Jul 20252610 AMAQI
19th Jul 20252511 AMAQI
19th Jul 20252512 PMAQI
19th Jul 2025261 PMAQI
19th Jul 2025282 PMAQI
19th Jul 2025303 PMAQI
19th Jul 2025314 PMAQI
19th Jul 2025305 PMAQI
19th Jul 2025306 PMAQI
19th Jul 2025317 PMAQI
19th Jul 2025308 PMAQI
19th Jul 2025329 PMAQI
19th Jul 20253310 PMAQI
19th Jul 20254011 PMAQI
20th Jul 20254112 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025502 AMAQI
20th Jul 2025593 AMAQI
20th Jul 2025584 AMAQI
17°C13/23°C
20th Jul 2025535 AMAQI
20th Jul 2025456 AMAQI
20th Jul 2025517 AMAQI
20th Jul 2025528 AMAQI
20th Jul 2025549 AMAQI
20th Jul 20255210 AMAQI
20th Jul 20255411 AMAQI
20th Jul 20255812 PMAQI
20th Jul 2025591 PMAQI
20th Jul 2025542 PMAQI
20th Jul 2025543 PMAQI
20th Jul 2025544 PMAQI
20th Jul 2025545 PMAQI
20th Jul 2025556 PMAQI
20th Jul 2025537 PMAQI
20th Jul 2025548 PMAQI
20th Jul 2025529 PMAQI
20th Jul 20255210 PMAQI
20th Jul 20255411 PMAQI
21st Jul 20255512 AMAQI
21st Jul 2025581 AMAQI
21st Jul 2025592 AMAQI
21st Jul 2025573 AMAQI
21st Jul 2025564 AMAQI
16°C9/22°C
21st Jul 2025575 AMAQI
21st Jul 2025606 AMAQI
21st Jul 2025597 AMAQI
21st Jul 2025588 AMAQI
21st Jul 2025599 AMAQI
21st Jul 20256010 AMAQI
21st Jul 20256011 AMAQI
21st Jul 20256212 PMAQI
21st Jul 2025611 PMAQI
21st Jul 2025602 PMAQI
21st Jul 2025613 PMAQI
21st Jul 2025604 PMAQI
21st Jul 2025605 PMAQI
21st Jul 2025596 PMAQI
21st Jul 2025597 PMAQI
21st Jul 2025578 PMAQI
21st Jul 2025579 PMAQI
21st Jul 20255710 PMAQI
21st Jul 20255911 PMAQI
22nd Jul 20255712 AMAQI
22nd Jul 2025571 AMAQI
22nd Jul 2025582 AMAQI
22nd Jul 2025583 AMAQI
22nd Jul 2025594 AMAQI
18°C12/23°C
22nd Jul 2025615 AMAQI
22nd Jul 2025646 AMAQI
22nd Jul 2025617 AMAQI
22nd Jul 2025608 AMAQI
22nd Jul 2025589 AMAQI
22nd Jul 20255910 AMAQI
22nd Jul 20255711 AMAQI
22nd Jul 20255812 PMAQI
22nd Jul 2025581 PMAQI
22nd Jul 2025582 PMAQI
22nd Jul 2025593 PMAQI
22nd Jul 2025604 PMAQI
22nd Jul 2025595 PMAQI
22nd Jul 2025576 PMAQI
22nd Jul 2025577 PMAQI
22nd Jul 2025578 PMAQI
22nd Jul 2025559 PMAQI
22nd Jul 20255410 PMAQI
22nd Jul 20255511 PMAQI
23rd Jul 20255512 AMAQI
23rd Jul 2025551 AMAQI
23rd Jul 2025502 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025494 AMAQI
22°C15/31°C
23rd Jul 2025455 AMAQI
23rd Jul 2025446 AMAQI
23rd Jul 2025467 AMAQI
23rd Jul 2025458 AMAQI
23rd Jul 2025479 AMAQI
23rd Jul 20255010 AMAQI
23rd Jul 20254911 AMAQI
23rd Jul 20254712 PMAQI
23rd Jul 2025371 PMAQI
23rd Jul 2025362 PMAQI
23rd Jul 2025383 PMAQI
23rd Jul 2025404 PMAQI
23rd Jul 2025375 PMAQI
23rd Jul 2025366 PMAQI
23rd Jul 2025467 PMAQI
23rd Jul 2025468 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254410 PMAQI
23rd Jul 20254211 PMAQI
24th Jul 20254212 AMAQI
24th Jul 2025411 AMAQI
24th Jul 2025332 AMAQI
24th Jul 2025463 AMAQI
24th Jul 2025494 AMAQI
22°C19/26°C
24th Jul 2025515 AMAQI
24th Jul 2025506 AMAQI
24th Jul 2025467 AMAQI
24th Jul 2025478 AMAQI
24th Jul 2025339 AMAQI
24th Jul 20252810 AMAQI
24th Jul 20253111 AMAQI
24th Jul 20253212 PMAQI
24th Jul 2025331 PMAQI
24th Jul 2025342 PMAQI
24th Jul 2025383 PMAQI
24th Jul 2025364 PMAQI
24th Jul 2025395 PMAQI
24th Jul 2025426 PMAQI
24th Jul 2025367 PMAQI
24th Jul 2025338 PMAQI
24th Jul 2025319 PMAQI
24th Jul 20253410 PMAQI
24th Jul 20253511 PMAQI
25th Jul 20253712 AMAQI
25th Jul 2025391 AMAQI
25th Jul 2025442 AMAQI
25th Jul 2025413 AMAQI
25th Jul 2025454 AMAQI
23°C18/28°C
25th Jul 2025425 AMAQI
25th Jul 2025446 AMAQI
25th Jul 2025517 AMAQI
25th Jul 2025488 AMAQI
25th Jul 2025399 AMAQI
25th Jul 20254610 AMAQI
25th Jul 20254811 AMAQI
25th Jul 20255812 PMAQI
25th Jul 2025561 PMAQI
25th Jul 2025642 PMAQI
25th Jul 2025623 PMAQI
25th Jul 2025634 PMAQI
25th Jul 2025605 PMAQI
25th Jul 2025576 PMAQI
25th Jul 2025517 PMAQI
25th Jul 2025498 PMAQI
25th Jul 2025569 PMAQI
25th Jul 20255610 PMAQI
25th Jul 20255511 PMAQI
26th Jul 20255612 AMAQI
26th Jul 2025571 AMAQI
26th Jul 2025632 AMAQI
26th Jul 2025663 AMAQI
26th Jul 2025664 AMAQI
21°C13/28°C
26th Jul 2025655 AMAQI
26th Jul 2025686 AMAQI
26th Jul 2025877 AMAQI
26th Jul 2025718 AMAQI
26th Jul 2025819 AMAQI
26th Jul 20257610 AMAQI
26th Jul 20257511 AMAQI
26th Jul 20256512 PMAQI
26th Jul 2025631 PMAQI
26th Jul 2025582 PMAQI
26th Jul 2025593 PMAQI
26th Jul 2025594 PMAQI
26th Jul 2025575 PMAQI
26th Jul 2025556 PMAQI
26th Jul 2025587 PMAQI
26th Jul 2025608 PMAQI
26th Jul 2025569 PMAQI
26th Jul 20255510 PMAQI
26th Jul 20255711 PMAQI
27th Jul 20255712 AMAQI
27th Jul 2025551 AMAQI
27th Jul 2025412 AMAQI
27th Jul 2025413 AMAQI
27th Jul 2025394 AMAQI
24°C16/32°C
27th Jul 2025405 AMAQI
27th Jul 2025396 AMAQI
27th Jul 2025417 AMAQI
27th Jul 2025408 AMAQI
27th Jul 2025409 AMAQI
27th Jul 20253910 AMAQI
27th Jul 20253511 AMAQI
27th Jul 20253712 PMAQI
27th Jul 2025401 PMAQI
27th Jul 2025422 PMAQI
27th Jul 2025413 PMAQI
27th Jul 2025424 PMAQI
27th Jul 2025425 PMAQI
27th Jul 2025426 PMAQI
27th Jul 2025417 PMAQI
27th Jul 2025428 PMAQI
27th Jul 2025419 PMAQI
27th Jul 20254010 PMAQI
27th Jul 20254211 PMAQI
28th Jul 20254212 AMAQI
28th Jul 2025421 AMAQI
28th Jul 2025392 AMAQI
28th Jul 2025373 AMAQI
28th Jul 2025344 AMAQI
27°C20/34°C
28th Jul 2025325 AMAQI
28th Jul 2025346 AMAQI
28th Jul 2025367 AMAQI
28th Jul 2025388 AMAQI
28th Jul 2025389 AMAQI
28th Jul 20253910 AMAQI
28th Jul 20254211 AMAQI
28th Jul 20254312 PMAQI
28th Jul 2025451 PMAQI
28th Jul 2025452 PMAQI
28th Jul 2025433 PMAQI
28th Jul 2025454 PMAQI
28th Jul 2025435 PMAQI
28th Jul 2025446 PMAQI
28th Jul 2025407 PMAQI
28th Jul 2025408 PMAQI
28th Jul 2025439 PMAQI
28th Jul 20254310 PMAQI
28th Jul 20254311 PMAQI
29th Jul 20254512 AMAQI
29th Jul 2025471 AMAQI
29th Jul 2025482 AMAQI
29th Jul 2025483 AMAQI
29th Jul 2025514 AMAQI
24°C18/31°C
29th Jul 2025505 AMAQI
29th Jul 2025486 AMAQI
29th Jul 2025467 AMAQI
29th Jul 2025498 AMAQI
29th Jul 2025549 AMAQI
29th Jul 20256210 AMAQI
29th Jul 20256111 AMAQI
29th Jul 20257012 PMAQI
29th Jul 2025661 PMAQI
29th Jul 2025602 PMAQI
29th Jul 2025563 PMAQI
29th Jul 2025564 PMAQI
29th Jul 2025575 PMAQI
29th Jul 2025576 PMAQI
29th Jul 2025557 PMAQI
29th Jul 2025548 PMAQI
29th Jul 2025549 PMAQI
29th Jul 20255810 PMAQI
29th Jul 20255811 PMAQI
30th Jul 20255512 AMAQI
30th Jul 2025581 AMAQI
30th Jul 2025792 AMAQI
30th Jul 2025843 AMAQI
30th Jul 2025804 AMAQI
22°C19/27°C
30th Jul 2025785 AMAQI
30th Jul 2025846 AMAQI
30th Jul 2025887 AMAQI
30th Jul 2025948 AMAQI
30th Jul 2025899 AMAQI
30th Jul 202510210 AMAQI
30th Jul 202510811 AMAQI
30th Jul 202512812 PMAQI
30th Jul 20251141 PMAQI
30th Jul 20251152 PMAQI
30th Jul 20251123 PMAQI
30th Jul 20251124 PMAQI
30th Jul 20251125 PMAQI
30th Jul 20251126 PMAQI
30th Jul 20251127 PMAQI
30th Jul 20251128 PMAQI
30th Jul 2025979 PMAQI
30th Jul 202510010 PMAQI
30th Jul 202511811 PMAQI
31st Jul 202511312 AMAQI
31st Jul 20251081 AMAQI
31st Jul 20251262 AMAQI
31st Jul 20251183 AMAQI
31st Jul 20251324 AMAQI
19°C16/25°C
31st Jul 20251305 AMAQI
31st Jul 20251506 AMAQI
31st Jul 20251627 AMAQI
31st Jul 20251648 AMAQI
31st Jul 20251629 AMAQI
31st Jul 202516410 AMAQI
31st Jul 202516611 AMAQI
31st Jul 202516812 PMAQI
31st Jul 20251651 PMAQI
31st Jul 20251642 PMAQI
31st Jul 20251663 PMAQI
31st Jul 20251694 PMAQI
31st Jul 20251615 PMAQI
31st Jul 20251656 PMAQI
31st Jul 20251657 PMAQI
31st Jul 20251648 PMAQI
31st Jul 20251629 PMAQI
31st Jul 202516410 PMAQI
31st Jul 202516311 PMAQI
1st Aug 202516212 AMAQI
1st Aug 20251631 AMAQI
1st Aug 20251632 AMAQI
1st Aug 20251643 AMAQI
1st Aug 20251624 AMAQI
18°C11/23°C
1st Aug 20251625 AMAQI
1st Aug 20251616 AMAQI
1st Aug 20251637 AMAQI
1st Aug 20251658 AMAQI
1st Aug 20251639 AMAQI
1st Aug 202516310 AMAQI
1st Aug 202516111 AMAQI
1st Aug 202516012 PMAQI
1st Aug 20251621 PMAQI
1st Aug 20251642 PMAQI
1st Aug 20251633 PMAQI
1st Aug 20251604 PMAQI
1st Aug 20251605 PMAQI
1st Aug 20251596 PMAQI
1st Aug 20251637 PMAQI
1st Aug 20251618 PMAQI
1st Aug 20251589 PMAQI
1st Aug 202516010 PMAQI
1st Aug 202515611 PMAQI
2nd Aug 202515812 AMAQI
2nd Aug 20251581 AMAQI
2nd Aug 20251582 AMAQI
2nd Aug 20251563 AMAQI
2nd Aug 20251574 AMAQI
19°C10/26°C
2nd Aug 20251565 AMAQI
5 AM2nd Aug 20251566 AMAQI
2nd Aug 20251567 AMAQI
2nd Aug 20251558 AMAQI
2nd Aug 20251539 AMAQI
2nd Aug 202515010 AMAQI
2nd Aug 202514811 AMAQI
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
63AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
63AQI
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. 63), while the lowest AQI was between 5 AM to 8 PM (Avg. 63).
Night time
Avg. Highest Time
12 AM - 4 AM
61AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 PM - 11 PM
60AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 61), while the lowest AQI was between 9 PM to 11 PM (Avg. 60).
2025 Days Vs Air Quality
Duluth, Minnesota, United States
2025
88%
188
10%
21
1%
3
0.4%
1
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
188 DaysModerate
21 DaysPoor
3 DaysUnhealthy
1 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 214 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
Duluth, Minnesota, 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
21AQI
21AQI
2nd January 2025
23AQI
23AQI
3rd January 2025
19AQI
19AQI
4th January 2025
21AQI
21AQI
5th January 2025
21AQI
21AQI
6th January 2025
24AQI
24AQI
7th January 2025
25AQI
25AQI
8th January 2025
23AQI
23AQI
9th January 2025
44AQI
44AQI
10th January 2025
29AQI
29AQI
11th January 2025
22AQI
22AQI
12th January 2025
23AQI
23AQI
13th January 2025
26AQI
26AQI
14th January 2025
23AQI
23AQI
15th January 2025
27AQI
27AQI
16th January 2025
25AQI
25AQI
17th January 2025
23AQI
23AQI
18th January 2025
24AQI
24AQI
19th January 2025
25AQI
25AQI
20th January 2025
24AQI
24AQI
21st January 2025
24AQI
24AQI
22nd January 2025
24AQI
24AQI
23rd January 2025
25AQI
25AQI
24th January 2025
28AQI
28AQI
25th January 2025
28AQI
28AQI
26th January 2025
26AQI
26AQI
27th January 2025
26AQI
26AQI
28th January 2025
26AQI
26AQI
29th January 2025
27AQI
27AQI
30th January 2025
31AQI
31AQI
31st January 2025
26AQI
26AQI
1st February 2025
26AQI
26AQI
2nd February 2025
30AQI
30AQI
3rd February 2025
26AQI
26AQI
4th February 2025
24AQI
24AQI
5th February 2025
26AQI
26AQI
6th February 2025
26AQI
26AQI
7th February 2025
27AQI
27AQI
8th February 2025
26AQI
26AQI
9th February 2025
28AQI
28AQI
10th February 2025
30AQI
30AQI
11th February 2025
25AQI
25AQI
12th February 2025
30AQI
30AQI
13th February 2025
25AQI
25AQI
14th February 2025
47AQI
47AQI
15th February 2025
39AQI
39AQI
16th February 2025
24AQI
24AQI
17th February 2025
23AQI
23AQI
18th February 2025
22AQI
22AQI
19th February 2025
22AQI
22AQI
20th February 2025
25AQI
25AQI
21st February 2025
28AQI
28AQI
22nd February 2025
40AQI
40AQI
23rd February 2025
61AQI
61AQI
24th February 2025
30AQI
30AQI
25th February 2025
25AQI
25AQI
26th February 2025
26AQI
26AQI
27th February 2025
27AQI
27AQI
28th February 2025
27AQI
27AQI
1st March 2025
28AQI
28AQI
2nd March 2025
27AQI
27AQI
3rd March 2025
34AQI
34AQI
4th March 2025
38AQI
38AQI
5th March 2025
28AQI
28AQI
6th March 2025
27AQI
27AQI
7th March 2025
29AQI
29AQI
8th March 2025
28AQI
28AQI
9th March 2025
29AQI
29AQI
10th March 2025
27AQI
27AQI
11th March 2025
28AQI
28AQI
12th March 2025
27AQI
27AQI
13th March 2025
26AQI
26AQI
14th March 2025
34AQI
34AQI
15th March 2025
37AQI
37AQI
16th March 2025
15AQI
15AQI
17th March 2025
17AQI
17AQI
18th March 2025
17AQI
17AQI
19th March 2025
18AQI
18AQI
20th March 2025
19AQI
19AQI
21st March 2025
20AQI
20AQI
22nd March 2025
29AQI
29AQI
23rd March 2025
23AQI
23AQI
24th March 2025
17AQI
17AQI
25th March 2025
21AQI
21AQI
26th March 2025
23AQI
23AQI
27th March 2025
18AQI
18AQI
28th March 2025
17AQI
17AQI
29th March 2025
16AQI
16AQI
30th March 2025
16AQI
16AQI
31st March 2025
19AQI
19AQI
1st April 2025
17AQI
17AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
16AQI
16AQI
4th April 2025
24AQI
24AQI
5th April 2025
19AQI
19AQI
6th April 2025
22AQI
22AQI
7th April 2025
15AQI
15AQI
8th April 2025
19AQI
19AQI
9th April 2025
23AQI
23AQI
10th April 2025
37AQI
37AQI
11th April 2025
40AQI
40AQI
12th April 2025
48AQI
48AQI
13th April 2025
51AQI
51AQI
14th April 2025
25AQI
25AQI
15th April 2025
16AQI
16AQI
16th April 2025
17AQI
17AQI
17th April 2025
23AQI
23AQI
18th April 2025
36AQI
36AQI
19th April 2025
18AQI
18AQI
20th April 2025
19AQI
19AQI
21st April 2025
15AQI
15AQI
22nd April 2025
22AQI
22AQI
23rd April 2025
17AQI
17AQI
24th April 2025
17AQI
17AQI
25th April 2025
19AQI
19AQI
26th April 2025
21AQI
21AQI
27th April 2025
21AQI
21AQI
28th April 2025
30AQI
30AQI
29th April 2025
15AQI
15AQI
30th April 2025
17AQI
17AQI
1st May 2025
21AQI
21AQI
2nd May 2025
18AQI
18AQI
3rd May 2025
20AQI
20AQI
4th May 2025
22AQI
22AQI
5th May 2025
20AQI
20AQI
6th May 2025
26AQI
26AQI
7th May 2025
18AQI
18AQI
8th May 2025
15AQI
15AQI
9th May 2025
28AQI
28AQI
10th May 2025
20AQI
20AQI
11th May 2025
25AQI
25AQI
12th May 2025
32AQI
32AQI
13th May 2025
42AQI
42AQI
14th May 2025
45AQI
45AQI
15th May 2025
29AQI
29AQI
16th May 2025
24AQI
24AQI
17th May 2025
16AQI
16AQI
18th May 2025
15AQI
15AQI
19th May 2025
14AQI
14AQI
20th May 2025
15AQI
15AQI
21st May 2025
16AQI
16AQI
22nd May 2025
16AQI
16AQI
23rd May 2025
14AQI
14AQI
24th May 2025
18AQI
18AQI
25th May 2025
21AQI
21AQI
26th May 2025
19AQI
19AQI
27th May 2025
23AQI
23AQI
28th May 2025
25AQI
25AQI
29th May 2025
34AQI
34AQI
30th May 2025
38AQI
38AQI
31st May 2025
43AQI
43AQI
1st June 2025
42AQI
42AQI
2nd June 2025
49AQI
49AQI
3rd June 2025
75AQI
75AQI
4th June 2025
63AQI
63AQI
5th June 2025
58AQI
58AQI
6th June 2025
55AQI
55AQI
7th June 2025
65AQI
65AQI
8th June 2025
60AQI
60AQI
9th June 2025
51AQI
51AQI
10th June 2025
64AQI
64AQI
11th June 2025
79AQI
79AQI
12th June 2025
54AQI
54AQI
13th June 2025
31AQI
31AQI
14th June 2025
26AQI
26AQI
15th June 2025
32AQI
32AQI
16th June 2025
39AQI
39AQI
17th June 2025
34AQI
34AQI
18th June 2025
37AQI
37AQI
19th June 2025
41AQI
41AQI
20th June 2025
32AQI
32AQI
21st June 2025
35AQI
35AQI
22nd June 2025
35AQI
35AQI
23rd June 2025
39AQI
39AQI
24th June 2025
41AQI
41AQI
25th June 2025
41AQI
41AQI
26th June 2025
32AQI
32AQI
27th June 2025
23AQI
23AQI
28th June 2025
28AQI
28AQI
29th June 2025
25AQI
25AQI
30th June 2025
21AQI
21AQI
1st July 2025
36AQI
36AQI
2nd July 2025
27AQI
27AQI
3rd July 2025
41AQI
41AQI
4th July 2025
44AQI
44AQI
5th July 2025
31AQI
31AQI
6th July 2025
51AQI
51AQI
7th July 2025
34AQI
34AQI
8th July 2025
34AQI
34AQI
9th July 2025
34AQI
34AQI
10th July 2025
33AQI
33AQI
11th July 2025
36AQI
36AQI
12th July 2025
94AQI
94AQI
13th July 2025
116AQI
116AQI
14th July 2025
106AQI
106AQI
15th July 2025
84AQI
84AQI
16th July 2025
49AQI
49AQI
17th July 2025
36AQI
36AQI
18th July 2025
43AQI
43AQI
19th July 2025
32AQI
32AQI
20th July 2025
53AQI
53AQI
21st July 2025
58AQI
58AQI
22nd July 2025
58AQI
58AQI
23rd July 2025
45AQI
45AQI
24th July 2025
38AQI
38AQI
25th July 2025
50AQI
50AQI
26th July 2025
63AQI
63AQI
27th July 2025
42AQI
42AQI
28th July 2025
40AQI
40AQI
29th July 2025
54AQI
54AQI
30th July 2025
96AQI
96AQI
31st July 2025
150AQI
150AQI
1st August 2025
162AQI
162AQI
25AQI
29AQI
24AQI
23AQI
24AQI
44AQI
55AQI
162AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202533AQI
31
27
1
31
29
1
31
20
10
19
9
3
1
188
21
3
1
Highest AQI recorded in
August162AQI
Lowest AQI recorded in
April23AQI
202428AQI
27
4
28
1
30
1
30
29
2
29
23
8
25
6
29
1
31
30
30
1
341
24
Highest AQI recorded in
July39AQI
Lowest AQI recorded in
November21AQI
202335AQI
25
6
28
31
30
29
2
10
17
3
20
9
2
21
10
20
10
30
1
28
1
29
2
301
58
5
Highest AQI recorded in
June64AQI
Lowest AQI recorded in
October21AQI
202224AQI
31
22
31
30
31
30
22
2
29
31
27
3
29
2
315
5
Highest AQI recorded in
December30AQI
Lowest AQI recorded in
August14AQI
202126AQI
25
5
24
4
31
30
31
30
24
6
1
27
3
1
30
31
30
31
344
18
2
Highest AQI recorded in
July42AQI
Lowest AQI recorded in
October15AQI
202026AQI
13
21
18
30
29
2
31
28
2
31
29
1
31
261
5
Highest AQI recorded in
June29AQI
Lowest AQI recorded in
September22AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
35AQILeast Polluted Year Recorded
2022(Avg.)
24AQIDuluth's annual 2025 AQI (33) shows an average percentage change of 19.6% (worsened AQI) compared to previous years: 2020 (26), 2021 (26), 2022 (24), 2023 (35), 2024 (28).
