Chester Park, 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
Chester Park, Duluth, Minnesota, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
162AQILowest AQI recorded on
10th Aug 2025
32AQISame Day Analysis (10th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 32 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Chester Park, Duluth, Minnesota, United States
AQI
Day
Night
.
5 AM10th Aug 2025
8 PM
4 AM11th Aug 2025
Day time
Avg. Highest Time
4PM10th Aug
40AQI
Avg. Lowest Time
6AM10th Aug
29AQI
Night time
Avg. Highest Time
3AM11th Aug
56AQI
Avg. Lowest Time
5AM10th Aug
28AQI
In the last 24 hours,
Chester Park's AQI reached its highest point of 56 at 3 AM during the Night, while the lowest point, 28, was recorded at 5 AM during the Night between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Chester Park, Duluth, Minnesota, United States
JulAug
12th - 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 - 10th10th - 11th11th
Day
Night
12th Jul 2025925 AMAQI
12th Jul 2025906 AMAQI
12th Jul 2025607 AMAQI
12th Jul 2025728 AMAQI
12th Jul 20251219 AMAQI
12th Jul 202515810 AMAQI
12th Jul 202513411 AMAQI
12th Jul 20259812 PMAQI
12th Jul 20251231 PMAQI
12th Jul 2025962 PMAQI
12th Jul 20251313 PMAQI
12th Jul 20251494 PMAQI
12th Jul 2025995 PMAQI
12th Jul 20251086 PMAQI
12th Jul 2025937 PMAQI
12th Jul 20251028 PMAQI
12th Jul 20251249 PMAQI
12th Jul 20259610 PMAQI
12th Jul 202511711 PMAQI
13th Jul 202511712 AMAQI
13th Jul 20251241 AMAQI
13th Jul 20251392 AMAQI
13th Jul 20251263 AMAQI
13th Jul 20251584 AMAQI
21°C17/28°C
13th Jul 20251505 AMAQI
13th Jul 20251406 AMAQI
13th Jul 20251237 AMAQI
13th Jul 20251238 AMAQI
13th Jul 20251169 AMAQI
13th Jul 202510910 AMAQI
13th Jul 202513511 AMAQI
13th Jul 202512712 PMAQI
13th Jul 20251171 PMAQI
13th Jul 20251222 PMAQI
13th Jul 20251103 PMAQI
13th Jul 20251064 PMAQI
13th Jul 2025985 PMAQI
13th Jul 20251046 PMAQI
13th Jul 20251227 PMAQI
13th Jul 20251368 PMAQI
13th Jul 20251129 PMAQI
13th Jul 202511410 PMAQI
13th Jul 202510511 PMAQI
14th Jul 202511312 AMAQI
14th Jul 20251131 AMAQI
14th Jul 2025622 AMAQI
14th Jul 2025903 AMAQI
14th Jul 20251064 AMAQI
24°C14/32°C
14th Jul 20251215 AMAQI
14th Jul 20251336 AMAQI
14th Jul 20251367 AMAQI
14th Jul 20251308 AMAQI
14th Jul 20251339 AMAQI
14th Jul 202512810 AMAQI
14th Jul 202515211 AMAQI
14th Jul 202515112 PMAQI
14th Jul 20251441 PMAQI
14th Jul 20251282 PMAQI
14th Jul 20251203 PMAQI
14th Jul 20251134 PMAQI
14th Jul 20251135 PMAQI
14th Jul 20251026 PMAQI
14th Jul 20251167 PMAQI
14th Jul 20251268 PMAQI
14th Jul 20251019 PMAQI
14th Jul 20259910 PMAQI
14th Jul 20259911 PMAQI
15th Jul 20259912 AMAQI
15th Jul 2025901 AMAQI
15th Jul 2025912 AMAQI
15th Jul 2025913 AMAQI
15th Jul 2025914 AMAQI
25°C15/32°C
15th Jul 2025935 AMAQI
15th Jul 2025886 AMAQI
15th Jul 2025847 AMAQI
15th Jul 2025838 AMAQI
15th Jul 2025829 AMAQI
15th Jul 20257310 AMAQI
15th Jul 20257611 AMAQI
15th Jul 20257212 PMAQI
15th Jul 2025741 PMAQI
15th Jul 2025722 PMAQI
15th Jul 2025763 PMAQI
15th Jul 2025784 PMAQI
15th Jul 2025785 PMAQI
15th Jul 2025786 PMAQI
15th Jul 2025827 PMAQI
15th Jul 2025798 PMAQI
15th Jul 2025729 PMAQI
15th Jul 20257210 PMAQI
15th Jul 20257111 PMAQI
16th Jul 20257112 AMAQI
16th Jul 2025691 AMAQI
16th Jul 2025622 AMAQI
16th Jul 2025593 AMAQI
16th Jul 2025504 AMAQI
22°C17/31°C
16th Jul 2025515 AMAQI
16th Jul 2025526 AMAQI
16th Jul 2025537 AMAQI
16th Jul 2025488 AMAQI
16th Jul 2025449 AMAQI
16th Jul 20254310 AMAQI
16th Jul 20254411 AMAQI
16th Jul 20254212 PMAQI
16th Jul 2025451 PMAQI
16th Jul 2025462 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025454 PMAQI
16th Jul 2025435 PMAQI
16th Jul 2025436 PMAQI
16th Jul 2025507 PMAQI
16th Jul 2025488 PMAQI
16th Jul 2025419 PMAQI
16th Jul 20254210 PMAQI
16th Jul 20253711 PMAQI
17th Jul 20253812 AMAQI
17th Jul 2025361 AMAQI
17th Jul 2025362 AMAQI
17th Jul 2025363 AMAQI
17th Jul 2025364 AMAQI
14°C12/15°C
17th Jul 2025365 AMAQI
17th Jul 2025346 AMAQI
17th Jul 2025317 AMAQI
17th Jul 2025318 AMAQI
17th Jul 2025319 AMAQI
17th Jul 20253110 AMAQI
17th Jul 20253111 AMAQI
17th Jul 20253212 PMAQI
17th Jul 2025341 PMAQI
17th Jul 2025342 PMAQI
17th Jul 2025353 PMAQI
17th Jul 2025354 PMAQI
17th Jul 2025365 PMAQI
17th Jul 2025356 PMAQI
17th Jul 2025307 PMAQI
17th Jul 2025318 PMAQI
17th Jul 2025429 PMAQI
17th Jul 20254510 PMAQI
17th Jul 20254811 PMAQI
18th Jul 20254612 AMAQI
18th Jul 2025451 AMAQI
18th Jul 2025492 AMAQI
18th Jul 2025453 AMAQI
18th Jul 2025414 AMAQI
16°C9/23°C
18th Jul 2025375 AMAQI
18th Jul 2025366 AMAQI
18th Jul 2025367 AMAQI
18th Jul 2025388 AMAQI
18th Jul 2025399 AMAQI
18th Jul 20254010 AMAQI
18th Jul 20253911 AMAQI
18th Jul 20254512 PMAQI
18th Jul 2025421 PMAQI
18th Jul 2025402 PMAQI
18th Jul 2025423 PMAQI
18th Jul 2025424 PMAQI
18th Jul 2025415 PMAQI
18th Jul 2025416 PMAQI
18th Jul 2025407 PMAQI
18th Jul 2025398 PMAQI
18th Jul 2025389 PMAQI
18th Jul 20253910 PMAQI
18th Jul 20253811 PMAQI
19th Jul 20253812 AMAQI
19th Jul 2025371 AMAQI
19th Jul 2025302 AMAQI
19th Jul 2025303 AMAQI
19th Jul 2025284 AMAQI
14°C7/18°C
19th Jul 2025275 AMAQI
19th Jul 2025286 AMAQI
19th Jul 2025277 AMAQI
19th Jul 2025258 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252410 AMAQI
19th Jul 20252311 AMAQI
19th Jul 20252412 PMAQI
19th Jul 2025251 PMAQI
19th Jul 2025262 PMAQI
19th Jul 2025263 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025288 PMAQI
19th Jul 2025319 PMAQI
19th Jul 20253210 PMAQI
19th Jul 20253811 PMAQI
20th Jul 20253812 AMAQI
20th Jul 2025371 AMAQI
20th Jul 2025482 AMAQI
20th Jul 2025623 AMAQI
20th Jul 2025544 AMAQI
18°C13/24°C
20th Jul 2025485 AMAQI
20th Jul 2025466 AMAQI
20th Jul 2025527 AMAQI
20th Jul 2025568 AMAQI
20th Jul 2025569 AMAQI
20th Jul 20255610 AMAQI
20th Jul 20255611 AMAQI
20th Jul 20256112 PMAQI
20th Jul 2025611 PMAQI
20th Jul 2025552 PMAQI
20th Jul 2025543 PMAQI
20th Jul 2025544 PMAQI
20th Jul 2025545 PMAQI
20th Jul 2025546 PMAQI
20th Jul 2025547 PMAQI
20th Jul 2025558 PMAQI
20th Jul 2025529 PMAQI
20th Jul 20255310 PMAQI
20th Jul 20255411 PMAQI
21st Jul 20255612 AMAQI
21st Jul 2025561 AMAQI
21st Jul 2025582 AMAQI
21st Jul 2025563 AMAQI
21st Jul 2025544 AMAQI
16°C9/23°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 2025633 PMAQI
21st Jul 2025604 PMAQI
21st Jul 2025605 PMAQI
21st Jul 2025596 PMAQI
21st Jul 2025587 PMAQI
21st Jul 2025578 PMAQI
21st Jul 2025569 PMAQI
21st Jul 20255710 PMAQI
21st Jul 20256011 PMAQI
22nd Jul 20255812 AMAQI
22nd Jul 2025581 AMAQI
22nd Jul 2025612 AMAQI
22nd Jul 2025623 AMAQI
22nd Jul 2025644 AMAQI
18°C12/23°C
22nd Jul 2025645 AMAQI
22nd Jul 2025666 AMAQI
22nd Jul 2025637 AMAQI
22nd Jul 2025638 AMAQI
22nd Jul 2025599 AMAQI
22nd Jul 20256210 AMAQI
22nd Jul 20255911 AMAQI
22nd Jul 20256012 PMAQI
22nd Jul 2025601 PMAQI
22nd Jul 2025592 PMAQI
22nd Jul 2025613 PMAQI
22nd Jul 2025624 PMAQI
22nd Jul 2025605 PMAQI
22nd Jul 2025596 PMAQI
22nd Jul 2025597 PMAQI
22nd Jul 2025588 PMAQI
22nd Jul 2025569 PMAQI
22nd Jul 20255510 PMAQI
22nd Jul 20255611 PMAQI
23rd Jul 20255612 AMAQI
23rd Jul 2025571 AMAQI
23rd Jul 2025482 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025464 AMAQI
22°C15/30°C
23rd Jul 2025455 AMAQI
23rd Jul 2025486 AMAQI
23rd Jul 2025487 AMAQI
23rd Jul 2025458 AMAQI
23rd Jul 2025469 AMAQI
23rd Jul 20254810 AMAQI
23rd Jul 20254611 AMAQI
23rd Jul 20254412 PMAQI
23rd Jul 2025341 PMAQI
23rd Jul 2025342 PMAQI
23rd Jul 2025353 PMAQI
23rd Jul 2025374 PMAQI
23rd Jul 2025345 PMAQI
23rd Jul 2025346 PMAQI
23rd Jul 2025437 PMAQI
23rd Jul 2025428 PMAQI
23rd Jul 2025349 PMAQI
23rd Jul 20253410 PMAQI
23rd Jul 20253511 PMAQI
24th Jul 20253612 AMAQI
24th Jul 2025361 AMAQI
24th Jul 2025302 AMAQI
24th Jul 2025363 AMAQI
24th Jul 2025424 AMAQI
23°C20/26°C
24th Jul 2025475 AMAQI
24th Jul 2025516 AMAQI
24th Jul 2025537 AMAQI
24th Jul 2025588 AMAQI
24th Jul 2025359 AMAQI
24th Jul 20253110 AMAQI
24th Jul 20253411 AMAQI
24th Jul 20253412 PMAQI
24th Jul 2025391 PMAQI
24th Jul 2025392 PMAQI
24th Jul 2025423 PMAQI
24th Jul 2025404 PMAQI
24th Jul 2025415 PMAQI
24th Jul 2025476 PMAQI
24th Jul 2025407 PMAQI
24th Jul 2025388 PMAQI
24th Jul 2025389 PMAQI
24th Jul 20254010 PMAQI
24th Jul 20254011 PMAQI
25th Jul 20254012 AMAQI
25th Jul 2025441 AMAQI
25th Jul 2025612 AMAQI
25th Jul 2025563 AMAQI
25th Jul 2025604 AMAQI
23°C17/28°C
25th Jul 2025575 AMAQI
25th Jul 2025616 AMAQI
25th Jul 2025667 AMAQI
25th Jul 2025608 AMAQI
25th Jul 2025519 AMAQI
25th Jul 20255810 AMAQI
25th Jul 20256211 AMAQI
25th Jul 20257112 PMAQI
25th Jul 2025681 PMAQI
25th Jul 2025742 PMAQI
25th Jul 2025703 PMAQI
25th Jul 2025714 PMAQI
25th Jul 2025665 PMAQI
25th Jul 2025656 PMAQI
25th Jul 2025627 PMAQI
25th Jul 2025598 PMAQI
25th Jul 2025609 PMAQI
25th Jul 20256210 PMAQI
25th Jul 20256211 PMAQI
26th Jul 20256312 AMAQI
26th Jul 2025611 AMAQI
26th Jul 2025642 AMAQI
26th Jul 2025663 AMAQI
26th Jul 2025654 AMAQI
21°C13/29°C
26th Jul 2025625 AMAQI
26th Jul 2025706 AMAQI
26th Jul 2025967 AMAQI
26th Jul 2025738 AMAQI
26th Jul 2025869 AMAQI
26th Jul 20257910 AMAQI
26th Jul 20257811 AMAQI
26th Jul 20256612 PMAQI
26th Jul 2025641 PMAQI
26th Jul 2025582 PMAQI
26th Jul 2025593 PMAQI
26th Jul 2025604 PMAQI
26th Jul 2025565 PMAQI
26th Jul 2025546 PMAQI
26th Jul 2025587 PMAQI
26th Jul 2025618 PMAQI
26th Jul 2025569 PMAQI
26th Jul 20255410 PMAQI
26th Jul 20255611 PMAQI
27th Jul 20255712 AMAQI
27th Jul 2025551 AMAQI
27th Jul 2025342 AMAQI
27th Jul 2025333 AMAQI
27th Jul 2025324 AMAQI
24°C16/32°C
27th Jul 2025345 AMAQI
27th Jul 2025316 AMAQI
27th Jul 2025327 AMAQI
27th Jul 2025328 AMAQI
27th Jul 2025329 AMAQI
27th Jul 20253410 AMAQI
27th Jul 20253011 AMAQI
27th Jul 20253312 PMAQI
27th Jul 2025341 PMAQI
27th Jul 2025382 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025384 PMAQI
27th Jul 2025365 PMAQI
27th Jul 2025366 PMAQI
27th Jul 2025367 PMAQI
27th Jul 2025368 PMAQI
27th Jul 2025369 PMAQI
27th Jul 20253510 PMAQI
27th Jul 20253611 PMAQI
28th Jul 20253612 AMAQI
28th Jul 2025371 AMAQI
28th Jul 2025332 AMAQI
28th Jul 2025323 AMAQI
28th Jul 2025304 AMAQI
27°C21/34°C
28th Jul 2025285 AMAQI
28th Jul 2025306 AMAQI
28th Jul 2025327 AMAQI
28th Jul 2025348 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20253510 AMAQI
28th Jul 20253611 AMAQI
28th Jul 20253812 PMAQI
28th Jul 2025401 PMAQI
28th Jul 2025382 PMAQI
28th Jul 2025383 PMAQI
28th Jul 2025394 PMAQI
28th Jul 2025385 PMAQI
28th Jul 2025386 PMAQI
28th Jul 2025367 PMAQI
28th Jul 2025368 PMAQI
28th Jul 2025379 PMAQI
28th Jul 20253810 PMAQI
28th Jul 20253811 PMAQI
29th Jul 20253912 AMAQI
29th Jul 2025421 AMAQI
29th Jul 2025422 AMAQI
29th Jul 2025423 AMAQI
29th Jul 2025474 AMAQI
25°C18/32°C
29th Jul 2025445 AMAQI
29th Jul 2025416 AMAQI
29th Jul 2025387 AMAQI
29th Jul 2025428 AMAQI
29th Jul 2025509 AMAQI
29th Jul 20256410 AMAQI
29th Jul 20256111 AMAQI
29th Jul 20257012 PMAQI
29th Jul 2025671 PMAQI
29th Jul 2025582 PMAQI
29th Jul 2025543 PMAQI
29th Jul 2025554 PMAQI
29th Jul 2025545 PMAQI
29th Jul 2025546 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025528 PMAQI
29th Jul 2025549 PMAQI
29th Jul 20255410 PMAQI
29th Jul 20255511 PMAQI
30th Jul 20255412 AMAQI
30th Jul 2025561 AMAQI
30th Jul 2025882 AMAQI
30th Jul 20251003 AMAQI
30th Jul 2025854 AMAQI
23°C19/28°C
30th Jul 2025815 AMAQI
30th Jul 2025876 AMAQI
30th Jul 2025877 AMAQI
30th Jul 2025948 AMAQI
30th Jul 2025929 AMAQI
30th Jul 202510210 AMAQI
30th Jul 202511411 AMAQI
30th Jul 202512812 PMAQI
30th Jul 20251141 PMAQI
30th Jul 20251112 PMAQI
30th Jul 20251083 PMAQI
30th Jul 20251084 PMAQI
30th Jul 20251085 PMAQI
30th Jul 20251086 PMAQI
30th Jul 20251087 PMAQI
30th Jul 20251088 PMAQI
30th Jul 2025969 PMAQI
30th Jul 202510410 PMAQI
30th Jul 202512411 PMAQI
31st Jul 202511712 AMAQI
31st Jul 20251131 AMAQI
31st Jul 20251462 AMAQI
31st Jul 20251513 AMAQI
31st Jul 20251574 AMAQI
20°C16/26°C
31st Jul 20251565 AMAQI
31st Jul 20251596 AMAQI
31st Jul 20251627 AMAQI
31st Jul 20251658 AMAQI
31st Jul 20251629 AMAQI
31st Jul 202516310 AMAQI
31st Jul 202516611 AMAQI
31st Jul 202517112 PMAQI
31st Jul 20251651 PMAQI
31st Jul 20251672 PMAQI
31st Jul 20251693 PMAQI
31st Jul 20251724 PMAQI
31st Jul 20251625 PMAQI
31st Jul 20251676 PMAQI
31st Jul 20251657 PMAQI
31st Jul 20251658 PMAQI
31st Jul 20251649 PMAQI
31st Jul 202516710 PMAQI
31st Jul 202516611 PMAQI
1st Aug 202516612 AMAQI
1st Aug 20251681 AMAQI
1st Aug 20251662 AMAQI
1st Aug 20251653 AMAQI
1st Aug 20251624 AMAQI
18°C12/24°C
1st Aug 20251605 AMAQI
1st Aug 20251616 AMAQI
1st Aug 20251637 AMAQI
1st Aug 20251668 AMAQI
1st Aug 20251659 AMAQI
1st Aug 202516410 AMAQI
1st Aug 202516111 AMAQI
1st Aug 202516212 PMAQI
1st Aug 20251621 PMAQI
1st Aug 20251652 PMAQI
1st Aug 20251653 PMAQI
1st Aug 20251604 PMAQI
1st Aug 20251605 PMAQI
1st Aug 20251616 PMAQI
1st Aug 20251637 PMAQI
1st Aug 20251608 PMAQI
1st Aug 20251589 PMAQI
1st Aug 202515910 PMAQI
1st Aug 202515411 PMAQI
2nd Aug 202515612 AMAQI
2nd Aug 20251581 AMAQI
2nd Aug 20251592 AMAQI
2nd Aug 20251563 AMAQI
2nd Aug 20251574 AMAQI
20°C10/28°C
2nd Aug 20251555 AMAQI
2nd Aug 20251556 AMAQI
2nd Aug 20251557 AMAQI
2nd Aug 20251548 AMAQI
2nd Aug 20251549 AMAQI
2nd Aug 202514810 AMAQI
2nd Aug 202515011 AMAQI
2nd Aug 202515312 PMAQI
2nd Aug 20251521 PMAQI
2nd Aug 20251542 PMAQI
2nd Aug 20251523 PMAQI
2nd Aug 20251454 PMAQI
2nd Aug 20251405 PMAQI
2nd Aug 20251306 PMAQI
2nd Aug 20251477 PMAQI
2nd Aug 20251288 PMAQI
2nd Aug 20251119 PMAQI
2nd Aug 202511010 PMAQI
2nd Aug 202510811 PMAQI
3rd Aug 202510612 AMAQI
3rd Aug 20251061 AMAQI
3rd Aug 20251082 AMAQI
3rd Aug 20251043 AMAQI
3rd Aug 20251084 AMAQI
20°C10/28°C
3rd Aug 20251005 AMAQI
3rd Aug 2025996 AMAQI
3rd Aug 2025987 AMAQI
3rd Aug 2025978 AMAQI
3rd Aug 2025999 AMAQI
3rd Aug 20259310 AMAQI
3rd Aug 20259011 AMAQI
3rd Aug 20259412 PMAQI
3rd Aug 2025911 PMAQI
3rd Aug 2025902 PMAQI
3rd Aug 2025913 PMAQI
3rd Aug 2025914 PMAQI
3rd Aug 2025935 PMAQI
3rd Aug 2025886 PMAQI
3rd Aug 2025977 PMAQI
3rd Aug 2025968 PMAQI
3rd Aug 2025889 PMAQI
3rd Aug 20258810 PMAQI
3rd Aug 20258711 PMAQI
4th Aug 20258612 AMAQI
4th Aug 2025951 AMAQI
4th Aug 2025902 AMAQI
4th Aug 2025863 AMAQI
4th Aug 2025884 AMAQI
20°C11/26°C
4th Aug 2025905 AMAQI
4th Aug 2025856 AMAQI
4th Aug 2025847 AMAQI
4th Aug 2025858 AMAQI
4th Aug 2025849 AMAQI
4th Aug 20258410 AMAQI
4th Aug 20258411 AMAQI
4th Aug 20258212 PMAQI
4th Aug 2025851 PMAQI
4th Aug 2025832 PMAQI
4th Aug 2025853 PMAQI
4th Aug 2025864 PMAQI
4th Aug 2025865 PMAQI
4th Aug 2025866 PMAQI
4th Aug 2025847 PMAQI
4th Aug 2025808 PMAQI
4th Aug 2025809 PMAQI
4th Aug 20258510 PMAQI
4th Aug 20258611 PMAQI
5th Aug 20258612 AMAQI
5th Aug 2025821 AMAQI
5th Aug 2025872 AMAQI
5th Aug 2025873 AMAQI
5th Aug 2025864 AMAQI
19°C14/25°C
5th Aug 2025885 AMAQI
5th Aug 2025876 AMAQI
5th Aug 2025867 AMAQI
5th Aug 2025908 AMAQI
5th Aug 2025899 AMAQI
5th Aug 20258410 AMAQI
5th Aug 20258711 AMAQI
5th Aug 20258812 PMAQI
5th Aug 2025891 PMAQI
5th Aug 2025852 PMAQI
5th Aug 2025833 PMAQI
5th Aug 2025814 PMAQI
5th Aug 2025775 PMAQI
5th Aug 2025776 PMAQI
5th Aug 2025887 PMAQI
5th Aug 2025828 PMAQI
5th Aug 2025749 PMAQI
5th Aug 20257210 PMAQI
5th Aug 20257011 PMAQI
6th Aug 20256712 AMAQI
6th Aug 2025691 AMAQI
6th Aug 2025732 AMAQI
6th Aug 2025693 AMAQI
6th Aug 2025624 AMAQI
19°C16/24°C
6th Aug 2025635 AMAQI
6th Aug 2025606 AMAQI
6th Aug 2025657 AMAQI
6th Aug 2025628 AMAQI
6th Aug 2025629 AMAQI
6th Aug 20256210 AMAQI
6th Aug 20256611 AMAQI
6th Aug 20256412 PMAQI
6th Aug 2025671 PMAQI
6th Aug 2025692 PMAQI
6th Aug 2025683 PMAQI
6th Aug 2025664 PMAQI
6th Aug 2025625 PMAQI
6th Aug 2025586 PMAQI
6th Aug 2025607 PMAQI
6th Aug 2025608 PMAQI
6th Aug 2025579 PMAQI
6th Aug 20255810 PMAQI
6th Aug 20255711 PMAQI
7th Aug 20256112 AMAQI
7th Aug 2025641 AMAQI
7th Aug 2025632 AMAQI
7th Aug 2025643 AMAQI
7th Aug 2025684 AMAQI
19°C16/23°C
7th Aug 2025625 AMAQI
7th Aug 2025596 AMAQI
7th Aug 2025597 AMAQI
7th Aug 2025568 AMAQI
7th Aug 2025549 AMAQI
7th Aug 20255210 AMAQI
7th Aug 20255211 AMAQI
7th Aug 20255412 PMAQI
7th Aug 2025531 PMAQI
7th Aug 2025522 PMAQI
7th Aug 2025543 PMAQI
7th Aug 2025544 PMAQI
7th Aug 2025535 PMAQI
7th Aug 2025546 PMAQI
7th Aug 2025567 PMAQI
7th Aug 2025588 PMAQI
7th Aug 2025569 PMAQI
7th Aug 20255410 PMAQI
7th Aug 20255411 PMAQI
8th Aug 20255412 AMAQI
8th Aug 2025541 AMAQI
8th Aug 2025482 AMAQI
8th Aug 2025493 AMAQI
8th Aug 2025484 AMAQI
24°C19/32°C
8th Aug 2025485 AMAQI
8th Aug 2025506 AMAQI
8th Aug 2025527 AMAQI
8th Aug 2025508 AMAQI
8th Aug 2025509 AMAQI
8th Aug 20255210 AMAQI
8th Aug 20254911 AMAQI
8th Aug 20255212 PMAQI
8th Aug 2025521 PMAQI
8th Aug 2025512 PMAQI
8th Aug 2025523 PMAQI
8th Aug 2025524 PMAQI
8th Aug 2025525 PMAQI
8th Aug 2025546 PMAQI
8th Aug 2025527 PMAQI
8th Aug 2025528 PMAQI
8th Aug 2025539 PMAQI
8th Aug 20255310 PMAQI
8th Aug 20255311 PMAQI
9th Aug 20255312 AMAQI
9th Aug 2025531 AMAQI
9th Aug 2025542 AMAQI
9th Aug 2025523 AMAQI
9th Aug 2025534 AMAQI
24°C19/29°C
9th Aug 2025545 AMAQI
9th Aug 2025536 AMAQI
9th Aug 2025537 AMAQI
9th Aug 2025528 AMAQI
9th Aug 2025489 AMAQI
9th Aug 20254610 AMAQI
9th Aug 20254311 AMAQI
9th Aug 20254112 PMAQI
9th Aug 2025381 PMAQI
9th Aug 2025402 PMAQI
9th Aug 2025423 PMAQI
9th Aug 2025434 PMAQI
9th Aug 2025425 PMAQI
9th Aug 2025406 PMAQI
9th Aug 2025477 PMAQI
9th Aug 2025478 PMAQI
9th Aug 2025399 PMAQI
9th Aug 20253710 PMAQI
9th Aug 20253811 PMAQI
10th Aug 20253712 AMAQI
10th Aug 2025361 AMAQI
10th Aug 2025262 AMAQI
10th Aug 2025283 AMAQI
10th Aug 2025294 AMAQI
26°C23/29°C
10th Aug 2025285 AMAQI
10th Aug 2025296 AMAQI
10th Aug 2025327 AMAQI
10th Aug 2025328 AMAQI
10th Aug 2025309 AMAQI
10th Aug 20253110 AMAQI
10th Aug 20253011 AMAQI
10th Aug 20253312 PMAQI
10th Aug 2025361 PMAQI
10th Aug 2025362 PMAQI
10th Aug 2025373 PMAQI
10th Aug 2025404 PMAQI
10th Aug 2025375 PMAQI
10th Aug 2025326 PMAQI
10th Aug 2025307 PMAQI
10th Aug 2025338 PMAQI
10th Aug 2025429 PMAQI
10th Aug 20254510 PMAQI
10th Aug 20254611 PMAQI
11th Aug 20254712 AMAQI
11th Aug 2025541 AMAQI
11th Aug 2025532 AMAQI
11th Aug 2025563 AMAQI
11th Aug 2025564 AMAQI
24°C17/31°C
11th Aug 2025575 AMAQI
5 AM11th Aug 2025526 AMAQI
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 4 PM
73AQI
12 hours / Day
360 hours / Month
Avg. Lowest Time
5 PM - 8 PM
71AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 4 PM (Avg. 73), while the lowest AQI was between 5 PM to 8 PM (Avg. 71).
Night time
Avg. Highest Time
12 AM - 4 AM
71AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 PM - 11 PM
69AQI
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. 71), while the lowest AQI was between 9 PM to 11 PM (Avg. 69).
2025 Days Vs Air Quality
Chester Park, Duluth, Minnesota, United States
2025
77%
105
19%
26
3%
4
1%
2
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
105 DaysModerate
26 DaysPoor
4 DaysUnhealthy
2 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 77%
Health Risk Level:
Low
In 2025, 77% of 223 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
Chester Park, 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 March 2025
17AQI
17AQI
2nd March 2025
17AQI
17AQI
3rd March 2025
16AQI
16AQI
4th March 2025
16AQI
16AQI
5th March 2025
17AQI
17AQI
1st April 2025
16AQI
16AQI
2nd April 2025
17AQI
17AQI
3rd April 2025
15AQI
15AQI
4th April 2025
20AQI
20AQI
5th April 2025
19AQI
19AQI
6th April 2025
21AQI
21AQI
7th April 2025
15AQI
15AQI
8th April 2025
17AQI
17AQI
9th April 2025
23AQI
23AQI
10th April 2025
39AQI
39AQI
11th April 2025
40AQI
40AQI
12th April 2025
47AQI
47AQI
13th April 2025
50AQI
50AQI
14th April 2025
25AQI
25AQI
15th April 2025
17AQI
17AQI
16th April 2025
16AQI
16AQI
17th April 2025
24AQI
24AQI
18th April 2025
38AQI
38AQI
19th April 2025
18AQI
18AQI
20th April 2025
19AQI
19AQI
21st April 2025
15AQI
15AQI
22nd April 2025
21AQI
21AQI
23rd April 2025
16AQI
16AQI
24th April 2025
17AQI
17AQI
25th April 2025
18AQI
18AQI
26th April 2025
19AQI
19AQI
27th April 2025
22AQI
22AQI
28th April 2025
31AQI
31AQI
29th April 2025
15AQI
15AQI
30th April 2025
16AQI
16AQI
1st May 2025
22AQI
22AQI
2nd May 2025
19AQI
19AQI
3rd May 2025
21AQI
21AQI
4th May 2025
24AQI
24AQI
5th May 2025
19AQI
19AQI
6th May 2025
26AQI
26AQI
7th May 2025
17AQI
17AQI
8th May 2025
15AQI
15AQI
9th May 2025
26AQI
26AQI
10th May 2025
20AQI
20AQI
11th May 2025
25AQI
25AQI
12th May 2025
33AQI
33AQI
13th May 2025
44AQI
44AQI
14th May 2025
47AQI
47AQI
15th May 2025
29AQI
29AQI
16th May 2025
23AQI
23AQI
17th May 2025
16AQI
16AQI
18th May 2025
15AQI
15AQI
19th May 2025
14AQI
14AQI
20th May 2025
14AQI
14AQI
21st May 2025
16AQI
16AQI
22nd May 2025
14AQI
14AQI
23rd May 2025
13AQI
13AQI
24th May 2025
18AQI
18AQI
25th May 2025
23AQI
23AQI
26th May 2025
19AQI
19AQI
27th May 2025
24AQI
24AQI
28th May 2025
24AQI
24AQI
29th May 2025
36AQI
36AQI
30th May 2025
38AQI
38AQI
31st May 2025
45AQI
45AQI
1st June 2025
44AQI
44AQI
2nd June 2025
52AQI
52AQI
3rd June 2025
75AQI
75AQI
4th June 2025
62AQI
62AQI
5th June 2025
59AQI
59AQI
6th June 2025
55AQI
55AQI
7th June 2025
67AQI
67AQI
8th June 2025
60AQI
60AQI
9th June 2025
53AQI
53AQI
10th June 2025
66AQI
66AQI
11th June 2025
83AQI
83AQI
12th June 2025
56AQI
56AQI
13th June 2025
33AQI
33AQI
14th June 2025
28AQI
28AQI
15th June 2025
35AQI
35AQI
16th June 2025
41AQI
41AQI
17th June 2025
35AQI
35AQI
18th June 2025
40AQI
40AQI
19th June 2025
44AQI
44AQI
20th June 2025
35AQI
35AQI
21st June 2025
36AQI
36AQI
22nd June 2025
35AQI
35AQI
23rd June 2025
39AQI
39AQI
24th June 2025
43AQI
43AQI
25th June 2025
37AQI
37AQI
26th June 2025
30AQI
30AQI
27th June 2025
20AQI
20AQI
28th June 2025
26AQI
26AQI
29th June 2025
23AQI
23AQI
30th June 2025
21AQI
21AQI
1st July 2025
36AQI
36AQI
2nd July 2025
26AQI
26AQI
3rd July 2025
41AQI
41AQI
4th July 2025
47AQI
47AQI
5th July 2025
29AQI
29AQI
6th July 2025
51AQI
51AQI
7th July 2025
34AQI
34AQI
8th July 2025
33AQI
33AQI
9th July 2025
33AQI
33AQI
10th July 2025
31AQI
31AQI
11th July 2025
35AQI
35AQI
12th July 2025
101AQI
101AQI
13th July 2025
124AQI
124AQI
14th July 2025
115AQI
115AQI
15th July 2025
82AQI
82AQI
16th July 2025
49AQI
49AQI
17th July 2025
36AQI
36AQI
18th July 2025
41AQI
41AQI
19th July 2025
29AQI
29AQI
20th July 2025
53AQI
53AQI
21st July 2025
58AQI
58AQI
22nd July 2025
60AQI
60AQI
23rd July 2025
43AQI
43AQI
24th July 2025
40AQI
40AQI
25th July 2025
60AQI
60AQI
26th July 2025
64AQI
64AQI
27th July 2025
36AQI
36AQI
28th July 2025
35AQI
35AQI
29th July 2025
51AQI
51AQI
30th July 2025
98AQI
98AQI
31st July 2025
158AQI
158AQI
1st August 2025
162AQI
162AQI
2nd August 2025
144AQI
144AQI
3rd August 2025
96AQI
96AQI
4th August 2025
86AQI
86AQI
5th August 2025
83AQI
83AQI
6th August 2025
63AQI
63AQI
7th August 2025
57AQI
57AQI
8th August 2025
51AQI
51AQI
9th August 2025
46AQI
46AQI
10th August 2025
32AQI
32AQI
17AQI
23AQI
24AQI
44AQI
56AQI
82AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202539AQI
5
30
31
19
11
18
9
3
1
2
6
1
1
105
26
4
2
Highest AQI recorded in
August82AQI
Lowest AQI recorded in
March17AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
39AQILeast Polluted Year Recorded
2025(Avg.)
39AQIChester Park's annual 2025 AQI (39) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
