Naperville, Illinois, 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
Naperville, Illinois, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
107AQILowest AQI recorded on
14th Aug 2023
19AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 88 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Naperville, Illinois, United States
AQI
Day
Night
.
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
Day time
Avg. Highest Time
7AM4th Aug
129AQI
Avg. Lowest Time
3PM4th Aug
57AQI
Night time
Avg. Highest Time
4AM5th Aug
66AQI
Avg. Lowest Time
11PM4th Aug
62AQI
In the last 24 hours,
Naperville's AQI reached its highest point of 129 at 7 AM during the Day, while the lowest point, 57, was recorded at 3 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Naperville, Illinois, United States
JulAug
06th - 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 - 05th05th
Day
Night
6th Jul 2025535 AMAQI
6th Jul 2025576 AMAQI
6th Jul 2025577 AMAQI
6th Jul 2025568 AMAQI
6th Jul 2025539 AMAQI
6th Jul 20254210 AMAQI
6th Jul 20253811 AMAQI
6th Jul 20253512 PMAQI
6th Jul 2025371 PMAQI
6th Jul 2025392 PMAQI
6th Jul 2025443 PMAQI
6th Jul 2025444 PMAQI
6th Jul 2025435 PMAQI
6th Jul 2025436 PMAQI
6th Jul 2025527 PMAQI
6th Jul 2025518 PMAQI
6th Jul 2025459 PMAQI
6th Jul 20255010 PMAQI
6th Jul 20255211 PMAQI
7th Jul 20255212 AMAQI
7th Jul 2025531 AMAQI
7th Jul 2025522 AMAQI
7th Jul 2025523 AMAQI
7th Jul 2025484 AMAQI
26°C21/32°C
7th Jul 2025445 AMAQI
7th Jul 2025466 AMAQI
7th Jul 2025527 AMAQI
7th Jul 2025548 AMAQI
7th Jul 2025559 AMAQI
7th Jul 20255810 AMAQI
7th Jul 20256111 AMAQI
7th Jul 20256212 PMAQI
7th Jul 2025621 PMAQI
7th Jul 2025632 PMAQI
7th Jul 2025583 PMAQI
7th Jul 2025574 PMAQI
7th Jul 2025555 PMAQI
7th Jul 2025556 PMAQI
7th Jul 2025547 PMAQI
7th Jul 2025548 PMAQI
7th Jul 2025549 PMAQI
7th Jul 20255510 PMAQI
7th Jul 20255411 PMAQI
8th Jul 20255612 AMAQI
8th Jul 2025561 AMAQI
8th Jul 2025722 AMAQI
8th Jul 2025713 AMAQI
8th Jul 2025724 AMAQI
24°C18/31°C
8th Jul 2025725 AMAQI
8th Jul 2025686 AMAQI
8th Jul 2025717 AMAQI
8th Jul 2025708 AMAQI
8th Jul 2025719 AMAQI
8th Jul 20257210 AMAQI
8th Jul 20257011 AMAQI
8th Jul 20257012 PMAQI
8th Jul 2025691 PMAQI
8th Jul 2025702 PMAQI
8th Jul 2025683 PMAQI
8th Jul 2025684 PMAQI
8th Jul 2025665 PMAQI
8th Jul 2025646 PMAQI
8th Jul 2025657 PMAQI
8th Jul 2025658 PMAQI
8th Jul 2025609 PMAQI
8th Jul 20255910 PMAQI
8th Jul 20256011 PMAQI
9th Jul 20256012 AMAQI
9th Jul 2025591 AMAQI
9th Jul 2025372 AMAQI
9th Jul 2025363 AMAQI
9th Jul 2025344 AMAQI
26°C18/33°C
9th Jul 2025365 AMAQI
9th Jul 2025356 AMAQI
9th Jul 2025387 AMAQI
9th Jul 2025418 AMAQI
9th Jul 2025449 AMAQI
9th Jul 20254410 AMAQI
9th Jul 20255111 AMAQI
9th Jul 20255012 PMAQI
9th Jul 2025511 PMAQI
9th Jul 2025522 PMAQI
9th Jul 2025523 PMAQI
9th Jul 2025524 PMAQI
9th Jul 2025525 PMAQI
9th Jul 2025526 PMAQI
9th Jul 2025507 PMAQI
9th Jul 2025498 PMAQI
9th Jul 2025519 PMAQI
9th Jul 20255110 PMAQI
9th Jul 20255211 PMAQI
10th Jul 20255212 AMAQI
10th Jul 2025521 AMAQI
10th Jul 2025492 AMAQI
10th Jul 2025473 AMAQI
10th Jul 2025464 AMAQI
23°C19/32°C
10th Jul 2025465 AMAQI
10th Jul 2025446 AMAQI
10th Jul 2025467 AMAQI
10th Jul 2025458 AMAQI
10th Jul 2025449 AMAQI
10th Jul 20254610 AMAQI
10th Jul 20254711 AMAQI
10th Jul 20254812 PMAQI
10th Jul 2025471 PMAQI
10th Jul 2025482 PMAQI
10th Jul 2025513 PMAQI
10th Jul 2025514 PMAQI
10th Jul 2025525 PMAQI
10th Jul 2025526 PMAQI
10th Jul 2025507 PMAQI
10th Jul 2025488 PMAQI
10th Jul 2025509 PMAQI
10th Jul 20254810 PMAQI
10th Jul 20254711 PMAQI
11th Jul 20254812 AMAQI
11th Jul 2025471 AMAQI
11th Jul 2025362 AMAQI
11th Jul 2025373 AMAQI
11th Jul 2025364 AMAQI
26°C17/34°C
11th Jul 2025365 AMAQI
11th Jul 2025366 AMAQI
11th Jul 2025367 AMAQI
11th Jul 2025368 AMAQI
11th Jul 2025369 AMAQI
11th Jul 20253610 AMAQI
11th Jul 20253611 AMAQI
11th Jul 20253712 PMAQI
11th Jul 2025391 PMAQI
11th Jul 2025412 PMAQI
11th Jul 2025433 PMAQI
11th Jul 2025444 PMAQI
11th Jul 2025435 PMAQI
11th Jul 2025436 PMAQI
11th Jul 2025417 PMAQI
11th Jul 2025428 PMAQI
11th Jul 2025429 PMAQI
11th Jul 20254010 PMAQI
11th Jul 20253811 PMAQI
12th Jul 20253612 AMAQI
12th Jul 2025331 AMAQI
12th Jul 2025232 AMAQI
12th Jul 2025233 AMAQI
12th Jul 2025234 AMAQI
27°C21/33°C
12th Jul 2025245 AMAQI
12th Jul 2025256 AMAQI
12th Jul 2025237 AMAQI
12th Jul 2025238 AMAQI
12th Jul 2025239 AMAQI
12th Jul 20252410 AMAQI
12th Jul 20252211 AMAQI
12th Jul 20252412 PMAQI
12th Jul 2025241 PMAQI
12th Jul 2025302 PMAQI
12th Jul 2025283 PMAQI
12th Jul 2025314 PMAQI
12th Jul 2025295 PMAQI
12th Jul 2025276 PMAQI
12th Jul 2025267 PMAQI
12th Jul 2025268 PMAQI
12th Jul 2025319 PMAQI
12th Jul 20253110 PMAQI
12th Jul 20253611 PMAQI
13th Jul 20254212 AMAQI
13th Jul 2025461 AMAQI
13th Jul 2025562 AMAQI
13th Jul 2025553 AMAQI
13th Jul 2025544 AMAQI
25°C21/30°C
13th Jul 2025545 AMAQI
13th Jul 2025596 AMAQI
13th Jul 2025607 AMAQI
13th Jul 2025608 AMAQI
13th Jul 2025609 AMAQI
13th Jul 20256210 AMAQI
13th Jul 20256411 AMAQI
13th Jul 20256212 PMAQI
13th Jul 2025621 PMAQI
13th Jul 2025622 PMAQI
13th Jul 2025583 PMAQI
13th Jul 2025604 PMAQI
13th Jul 2025605 PMAQI
13th Jul 2025616 PMAQI
13th Jul 2025587 PMAQI
13th Jul 2025568 PMAQI
13th Jul 2025569 PMAQI
13th Jul 20255610 PMAQI
13th Jul 20255711 PMAQI
14th Jul 20255512 AMAQI
14th Jul 2025571 AMAQI
14th Jul 2025662 AMAQI
14th Jul 2025723 AMAQI
14th Jul 2025714 AMAQI
23°C17/28°C
14th Jul 2025705 AMAQI
14th Jul 2025726 AMAQI
14th Jul 2025787 AMAQI
14th Jul 2025788 AMAQI
14th Jul 2025829 AMAQI
14th Jul 20257810 AMAQI
14th Jul 20257811 AMAQI
14th Jul 20257712 PMAQI
14th Jul 2025801 PMAQI
14th Jul 2025782 PMAQI
14th Jul 2025793 PMAQI
14th Jul 2025784 PMAQI
14th Jul 2025745 PMAQI
14th Jul 2025756 PMAQI
14th Jul 2025697 PMAQI
14th Jul 2025728 PMAQI
14th Jul 2025749 PMAQI
14th Jul 20257210 PMAQI
14th Jul 20257411 PMAQI
15th Jul 20257412 AMAQI
15th Jul 2025741 AMAQI
15th Jul 2025812 AMAQI
15th Jul 2025783 AMAQI
15th Jul 2025784 AMAQI
25°C16/33°C
15th Jul 2025785 AMAQI
15th Jul 2025786 AMAQI
15th Jul 2025807 AMAQI
15th Jul 2025808 AMAQI
15th Jul 2025789 AMAQI
15th Jul 20257810 AMAQI
15th Jul 20257511 AMAQI
15th Jul 20257512 PMAQI
15th Jul 2025731 PMAQI
15th Jul 2025722 PMAQI
15th Jul 2025753 PMAQI
15th Jul 2025744 PMAQI
15th Jul 2025765 PMAQI
15th Jul 2025726 PMAQI
15th Jul 2025767 PMAQI
15th Jul 2025758 PMAQI
15th Jul 2025719 PMAQI
15th Jul 20257110 PMAQI
15th Jul 20257011 PMAQI
16th Jul 20256712 AMAQI
16th Jul 2025641 AMAQI
16th Jul 2025462 AMAQI
16th Jul 2025443 AMAQI
16th Jul 2025374 AMAQI
26°C19/34°C
16th Jul 2025355 AMAQI
16th Jul 2025396 AMAQI
16th Jul 2025467 AMAQI
16th Jul 2025478 AMAQI
16th Jul 2025459 AMAQI
16th Jul 20254710 AMAQI
16th Jul 20254811 AMAQI
16th Jul 20254712 PMAQI
16th Jul 2025461 PMAQI
16th Jul 2025482 PMAQI
16th Jul 2025483 PMAQI
16th Jul 2025484 PMAQI
16th Jul 2025465 PMAQI
16th Jul 2025426 PMAQI
16th Jul 2025487 PMAQI
16th Jul 2025488 PMAQI
16th Jul 2025459 PMAQI
16th Jul 20254210 PMAQI
16th Jul 20253911 PMAQI
17th Jul 20253712 AMAQI
17th Jul 2025341 AMAQI
17th Jul 2025222 AMAQI
17th Jul 2025223 AMAQI
17th Jul 2025224 AMAQI
27°C22/33°C
17th Jul 2025225 AMAQI
17th Jul 2025226 AMAQI
17th Jul 2025247 AMAQI
17th Jul 2025268 AMAQI
17th Jul 2025289 AMAQI
17th Jul 20252710 AMAQI
17th Jul 20252711 AMAQI
17th Jul 20252612 PMAQI
17th Jul 2025241 PMAQI
17th Jul 2025242 PMAQI
17th Jul 2025263 PMAQI
17th Jul 2025274 PMAQI
17th Jul 2025265 PMAQI
17th Jul 2025266 PMAQI
17th Jul 2025267 PMAQI
17th Jul 2025268 PMAQI
17th Jul 2025249 PMAQI
17th Jul 20252410 PMAQI
17th Jul 20252311 PMAQI
18th Jul 20252112 AMAQI
18th Jul 2025211 AMAQI
18th Jul 2025182 AMAQI
18th Jul 2025183 AMAQI
18th Jul 2025184 AMAQI
21°C17/24°C
18th Jul 2025185 AMAQI
18th Jul 2025186 AMAQI
18th Jul 2025167 AMAQI
18th Jul 2025188 AMAQI
18th Jul 2025189 AMAQI
18th Jul 20251810 AMAQI
18th Jul 20251911 AMAQI
18th Jul 20252012 PMAQI
18th Jul 2025211 PMAQI
18th Jul 2025212 PMAQI
18th Jul 2025223 PMAQI
18th Jul 2025224 PMAQI
18th Jul 2025225 PMAQI
18th Jul 2025236 PMAQI
18th Jul 2025207 PMAQI
18th Jul 2025198 PMAQI
18th Jul 2025229 PMAQI
18th Jul 20252210 PMAQI
18th Jul 20252411 PMAQI
19th Jul 20252312 AMAQI
19th Jul 2025261 AMAQI
19th Jul 2025302 AMAQI
19th Jul 2025363 AMAQI
19th Jul 2025364 AMAQI
22°C14/31°C
19th Jul 2025325 AMAQI
19th Jul 2025316 AMAQI
19th Jul 2025317 AMAQI
19th Jul 2025318 AMAQI
19th Jul 2025329 AMAQI
19th Jul 20253310 AMAQI
19th Jul 20253211 AMAQI
19th Jul 20253312 PMAQI
19th Jul 2025341 PMAQI
19th Jul 2025312 PMAQI
19th Jul 2025303 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025305 PMAQI
19th Jul 2025316 PMAQI
19th Jul 2025317 PMAQI
19th Jul 2025318 PMAQI
19th Jul 2025279 PMAQI
19th Jul 20252710 PMAQI
19th Jul 20252711 PMAQI
20th Jul 20252712 AMAQI
20th Jul 2025281 AMAQI
20th Jul 2025242 AMAQI
20th Jul 2025223 AMAQI
20th Jul 2025204 AMAQI
24°C20/28°C
20th Jul 2025205 AMAQI
20th Jul 2025226 AMAQI
20th Jul 2025257 AMAQI
20th Jul 2025288 AMAQI
20th Jul 2025259 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252211 AMAQI
20th Jul 20252312 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025292 PMAQI
20th Jul 2025313 PMAQI
20th Jul 2025314 PMAQI
20th Jul 2025315 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025258 PMAQI
20th Jul 2025299 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253812 AMAQI
21st Jul 2025471 AMAQI
21st Jul 2025702 AMAQI
21st Jul 2025723 AMAQI
21st Jul 2025824 AMAQI
21°C19/22°C
21st Jul 2025855 AMAQI
21st Jul 2025766 AMAQI
21st Jul 2025817 AMAQI
21st Jul 2025788 AMAQI
21st Jul 2025729 AMAQI
21st Jul 20257610 AMAQI
21st Jul 20256811 AMAQI
21st Jul 20256512 PMAQI
21st Jul 2025661 PMAQI
21st Jul 2025672 PMAQI
21st Jul 2025693 PMAQI
21st Jul 2025704 PMAQI
21st Jul 2025715 PMAQI
21st Jul 2025726 PMAQI
21st Jul 2025737 PMAQI
21st Jul 2025728 PMAQI
21st Jul 2025709 PMAQI
21st Jul 20256710 PMAQI
21st Jul 20257411 PMAQI
22nd Jul 20256812 AMAQI
22nd Jul 2025681 AMAQI
22nd Jul 2025682 AMAQI
22nd Jul 2025713 AMAQI
22nd Jul 2025684 AMAQI
23°C17/28°C
22nd Jul 2025665 AMAQI
22nd Jul 2025726 AMAQI
22nd Jul 2025807 AMAQI
22nd Jul 2025798 AMAQI
22nd Jul 2025789 AMAQI
22nd Jul 20258310 AMAQI
22nd Jul 20258311 AMAQI
22nd Jul 20258112 PMAQI
22nd Jul 2025791 PMAQI
22nd Jul 2025782 PMAQI
22nd Jul 2025763 PMAQI
22nd Jul 2025734 PMAQI
22nd Jul 2025735 PMAQI
22nd Jul 2025736 PMAQI
22nd Jul 2025707 PMAQI
22nd Jul 2025688 PMAQI
22nd Jul 2025689 PMAQI
22nd Jul 20257010 PMAQI
22nd Jul 20257011 PMAQI
23rd Jul 20256812 AMAQI
23rd Jul 2025691 AMAQI
23rd Jul 2025652 AMAQI
23rd Jul 2025633 AMAQI
23rd Jul 2025624 AMAQI
26°C19/33°C
23rd Jul 2025605 AMAQI
23rd Jul 2025626 AMAQI
23rd Jul 2025647 AMAQI
23rd Jul 2025648 AMAQI
23rd Jul 2025669 AMAQI
23rd Jul 20256410 AMAQI
23rd Jul 20256411 AMAQI
23rd Jul 20256412 PMAQI
23rd Jul 2025651 PMAQI
23rd Jul 2025662 PMAQI
23rd Jul 2025653 PMAQI
23rd Jul 2025644 PMAQI
23rd Jul 2025645 PMAQI
23rd Jul 2025646 PMAQI
23rd Jul 2025647 PMAQI
23rd Jul 2025638 PMAQI
23rd Jul 2025629 PMAQI
23rd Jul 20256210 PMAQI
23rd Jul 20256211 PMAQI
24th Jul 20256012 AMAQI
24th Jul 2025601 AMAQI
24th Jul 2025552 AMAQI
24th Jul 2025543 AMAQI
24th Jul 2025524 AMAQI
26°C21/34°C
24th Jul 2025535 AMAQI
24th Jul 2025536 AMAQI
24th Jul 2025537 AMAQI
24th Jul 2025548 AMAQI
24th Jul 2025549 AMAQI
24th Jul 20255510 AMAQI
24th Jul 20255511 AMAQI
24th Jul 20255512 PMAQI
24th Jul 2025541 PMAQI
24th Jul 2025552 PMAQI
24th Jul 2025553 PMAQI
24th Jul 2025554 PMAQI
24th Jul 2025525 PMAQI
24th Jul 2025536 PMAQI
24th Jul 2025557 PMAQI
24th Jul 2025548 PMAQI
24th Jul 2025489 PMAQI
24th Jul 20254810 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20254712 AMAQI
25th Jul 2025461 AMAQI
25th Jul 2025272 AMAQI
25th Jul 2025263 AMAQI
25th Jul 2025284 AMAQI
28°C23/35°C
25th Jul 2025265 AMAQI
25th Jul 2025276 AMAQI
25th Jul 2025287 AMAQI
25th Jul 2025288 AMAQI
25th Jul 2025279 AMAQI
25th Jul 20252810 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20252912 PMAQI
25th Jul 2025301 PMAQI
25th Jul 2025292 PMAQI
25th Jul 2025313 PMAQI
25th Jul 2025314 PMAQI
25th Jul 2025365 PMAQI
25th Jul 2025376 PMAQI
25th Jul 2025347 PMAQI
25th Jul 2025348 PMAQI
25th Jul 2025419 PMAQI
25th Jul 20253910 PMAQI
25th Jul 20253611 PMAQI
26th Jul 20253512 AMAQI
26th Jul 2025361 AMAQI
26th Jul 2025382 AMAQI
26th Jul 2025303 AMAQI
26th Jul 2025234 AMAQI
25°C23/29°C
26th Jul 2025205 AMAQI
26th Jul 2025226 AMAQI
26th Jul 2025227 AMAQI
26th Jul 2025238 AMAQI
26th Jul 2025249 AMAQI
26th Jul 20252410 AMAQI
26th Jul 20252511 AMAQI
26th Jul 20252612 PMAQI
26th Jul 2025251 PMAQI
26th Jul 2025262 PMAQI
26th Jul 2025283 PMAQI
26th Jul 2025284 PMAQI
26th Jul 2025275 PMAQI
26th Jul 2025276 PMAQI
26th Jul 2025287 PMAQI
26th Jul 2025288 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20253110 PMAQI
26th Jul 20253011 PMAQI
27th Jul 20253112 AMAQI
27th Jul 2025301 AMAQI
27th Jul 2025262 AMAQI
27th Jul 2025263 AMAQI
27th Jul 2025284 AMAQI
26°C22/29°C
27th Jul 2025265 AMAQI
27th Jul 2025276 AMAQI
27th Jul 2025287 AMAQI
27th Jul 2025288 AMAQI
27th Jul 2025289 AMAQI
27th Jul 20252910 AMAQI
27th Jul 20253111 AMAQI
27th Jul 20253512 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025362 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025364 PMAQI
27th Jul 2025365 PMAQI
27th Jul 2025366 PMAQI
27th Jul 2025327 PMAQI
27th Jul 2025328 PMAQI
27th Jul 2025389 PMAQI
27th Jul 20253610 PMAQI
27th Jul 20253711 PMAQI
28th Jul 20253812 AMAQI
28th Jul 2025381 AMAQI
28th Jul 2025382 AMAQI
28th Jul 2025393 AMAQI
28th Jul 2025394 AMAQI
28°C23/33°C
28th Jul 2025405 AMAQI
28th Jul 2025386 AMAQI
28th Jul 2025367 AMAQI
28th Jul 2025358 AMAQI
28th Jul 2025329 AMAQI
28th Jul 20253310 AMAQI
28th Jul 20253411 AMAQI
28th Jul 20253812 PMAQI
28th Jul 2025421 PMAQI
28th Jul 2025442 PMAQI
28th Jul 2025423 PMAQI
28th Jul 2025444 PMAQI
28th Jul 2025445 PMAQI
28th Jul 2025446 PMAQI
28th Jul 2025427 PMAQI
28th Jul 2025418 PMAQI
28th Jul 2025419 PMAQI
28th Jul 20254310 PMAQI
28th Jul 20254411 PMAQI
29th Jul 20254212 AMAQI
29th Jul 2025421 AMAQI
29th Jul 2025392 AMAQI
29th Jul 2025393 AMAQI
29th Jul 2025404 AMAQI
29°C23/34°C
29th Jul 2025405 AMAQI
29th Jul 2025426 AMAQI
29th Jul 2025447 AMAQI
29th Jul 2025438 AMAQI
29th Jul 2025449 AMAQI
29th Jul 20254310 AMAQI
29th Jul 20254311 AMAQI
29th Jul 20254412 PMAQI
29th Jul 2025421 PMAQI
29th Jul 2025432 PMAQI
29th Jul 2025433 PMAQI
29th Jul 2025434 PMAQI
29th Jul 2025435 PMAQI
29th Jul 2025446 PMAQI
29th Jul 2025437 PMAQI
29th Jul 2025428 PMAQI
29th Jul 2025419 PMAQI
29th Jul 20254210 PMAQI
29th Jul 20254311 PMAQI
30th Jul 20254312 AMAQI
30th Jul 2025441 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025503 AMAQI
30th Jul 2025514 AMAQI
29°C21/37°C
30th Jul 2025525 AMAQI
30th Jul 2025486 AMAQI
30th Jul 2025487 AMAQI
30th Jul 2025488 AMAQI
30th Jul 2025479 AMAQI
30th Jul 20254610 AMAQI
30th Jul 20254511 AMAQI
30th Jul 20254312 PMAQI
30th Jul 2025461 PMAQI
30th Jul 2025702 PMAQI
30th Jul 2025773 PMAQI
30th Jul 2025774 PMAQI
30th Jul 2025775 PMAQI
30th Jul 2025776 PMAQI
30th Jul 2025777 PMAQI
30th Jul 2025778 PMAQI
30th Jul 2025609 PMAQI
30th Jul 20255810 PMAQI
30th Jul 20255811 PMAQI
31st Jul 20255212 AMAQI
31st Jul 2025521 AMAQI
31st Jul 2025472 AMAQI
31st Jul 2025553 AMAQI
31st Jul 2025714 AMAQI
25°C22/29°C
31st Jul 2025835 AMAQI
31st Jul 2025886 AMAQI
31st Jul 20251087 AMAQI
31st Jul 20251228 AMAQI
31st Jul 20251369 AMAQI
31st Jul 202514410 AMAQI
31st Jul 202516011 AMAQI
31st Jul 202516712 PMAQI
31st Jul 20251641 PMAQI
31st Jul 20251712 PMAQI
31st Jul 20251763 PMAQI
31st Jul 20251634 PMAQI
31st Jul 20251645 PMAQI
31st Jul 20251526 PMAQI
31st Jul 20251207 PMAQI
31st Jul 20251288 PMAQI
31st Jul 20251279 PMAQI
31st Jul 202512610 PMAQI
31st Jul 202514011 PMAQI
1st Aug 202514012 AMAQI
1st Aug 20251111 AMAQI
1st Aug 20251002 AMAQI
1st Aug 20251043 AMAQI
1st Aug 20251064 AMAQI
23°C19/27°C
1st Aug 20251105 AMAQI
1st Aug 20251156 AMAQI
1st Aug 20251197 AMAQI
1st Aug 20251258 AMAQI
1st Aug 20251249 AMAQI
1st Aug 202511010 AMAQI
1st Aug 202510811 AMAQI
1st Aug 20259512 PMAQI
1st Aug 2025991 PMAQI
1st Aug 2025982 PMAQI
1st Aug 2025923 PMAQI
1st Aug 2025944 PMAQI
1st Aug 20251015 PMAQI
1st Aug 2025976 PMAQI
1st Aug 20251037 PMAQI
1st Aug 20251098 PMAQI
1st Aug 20251059 PMAQI
1st Aug 202511110 PMAQI
1st Aug 202510711 PMAQI
2nd Aug 202510312 AMAQI
2nd Aug 20251041 AMAQI
2nd Aug 20251022 AMAQI
2nd Aug 20251043 AMAQI
2nd Aug 20251024 AMAQI
21°C16/26°C
2nd Aug 2025975 AMAQI
2nd Aug 20251006 AMAQI
2nd Aug 20251047 AMAQI
2nd Aug 20251008 AMAQI
2nd Aug 20251029 AMAQI
2nd Aug 202510110 AMAQI
2nd Aug 20259411 AMAQI
2nd Aug 20258412 PMAQI
2nd Aug 2025761 PMAQI
2nd Aug 2025712 PMAQI
2nd Aug 2025683 PMAQI
2nd Aug 2025714 PMAQI
2nd Aug 2025755 PMAQI
2nd Aug 2025746 PMAQI
2nd Aug 2025927 PMAQI
2nd Aug 2025918 PMAQI
2nd Aug 2025869 PMAQI
2nd Aug 20258810 PMAQI
2nd Aug 20258511 PMAQI
3rd Aug 20258512 AMAQI
3rd Aug 2025821 AMAQI
3rd Aug 2025832 AMAQI
3rd Aug 2025853 AMAQI
3rd Aug 2025884 AMAQI
21°C13/29°C
3rd Aug 2025845 AMAQI
3rd Aug 2025846 AMAQI
3rd Aug 2025857 AMAQI
3rd Aug 2025878 AMAQI
3rd Aug 2025869 AMAQI
3rd Aug 20259110 AMAQI
3rd Aug 20259011 AMAQI
3rd Aug 20258912 PMAQI
3rd Aug 2025901 PMAQI
3rd Aug 2025972 PMAQI
3rd Aug 20251003 PMAQI
3rd Aug 2025894 PMAQI
3rd Aug 2025965 PMAQI
3rd Aug 2025986 PMAQI
3rd Aug 2025887 PMAQI
3rd Aug 2025898 PMAQI
3rd Aug 2025879 PMAQI
3rd Aug 20258610 PMAQI
3rd Aug 20259011 PMAQI
4th Aug 20259112 AMAQI
4th Aug 20251101 AMAQI
4th Aug 20251092 AMAQI
4th Aug 20251213 AMAQI
4th Aug 20251234 AMAQI
22°C14/29°C
4th Aug 20251205 AMAQI
4th Aug 20251196 AMAQI
4th Aug 20251297 AMAQI
4th Aug 20251148 AMAQI
4th Aug 2025919 AMAQI
4th Aug 20258210 AMAQI
4th Aug 20257811 AMAQI
4th Aug 20257212 PMAQI
4th Aug 2025641 PMAQI
4th Aug 2025602 PMAQI
4th Aug 2025573 PMAQI
4th Aug 2025584 PMAQI
4th Aug 2025585 PMAQI
4th Aug 2025606 PMAQI
4th Aug 2025867 PMAQI
4th Aug 2025758 PMAQI
4th Aug 2025629 PMAQI
4th Aug 20256410 PMAQI
4th Aug 20256211 PMAQI
5th Aug 20256412 AMAQI
5th Aug 2025641 AMAQI
5th Aug 2025642 AMAQI
5th Aug 2025653 AMAQI
5th Aug 2025664 AMAQI
22°C18/29°C
5th Aug 2025665 AMAQI
5 AM12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
7 AM - 8 PM
57AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 6 AM
54AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 8 PM (Avg. 57), while the lowest AQI was between 5 AM to 6 AM (Avg. 54).
Night time
Avg. Highest Time
12 AM - 11 PM
55AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
55AQI
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. 55), while the lowest AQI was between 12 AM to 11 PM (Avg. 55).
2025 Days Vs Air Quality
Naperville, Illinois, United States
2025
80%
173
19%
40
0.9%
2
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
173 DaysModerate
40 DaysPoor
2 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2025, 80% of 217 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
Naperville, Illinois, 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
22AQI
22AQI
2nd January 2025
23AQI
23AQI
3rd January 2025
24AQI
24AQI
4th January 2025
20AQI
20AQI
5th January 2025
21AQI
21AQI
6th January 2025
18AQI
18AQI
7th January 2025
22AQI
22AQI
8th January 2025
25AQI
25AQI
9th January 2025
44AQI
44AQI
10th January 2025
67AQI
67AQI
11th January 2025
41AQI
41AQI
12th January 2025
42AQI
42AQI
13th January 2025
21AQI
21AQI
14th January 2025
25AQI
25AQI
15th January 2025
36AQI
36AQI
16th January 2025
38AQI
38AQI
17th January 2025
29AQI
29AQI
18th January 2025
22AQI
22AQI
19th January 2025
20AQI
20AQI
20th January 2025
20AQI
20AQI
21st January 2025
22AQI
22AQI
22nd January 2025
25AQI
25AQI
23rd January 2025
29AQI
29AQI
24th January 2025
32AQI
32AQI
25th January 2025
27AQI
27AQI
26th January 2025
20AQI
20AQI
27th January 2025
21AQI
21AQI
28th January 2025
21AQI
21AQI
29th January 2025
21AQI
21AQI
30th January 2025
33AQI
33AQI
31st January 2025
36AQI
36AQI
1st February 2025
21AQI
21AQI
2nd February 2025
47AQI
47AQI
3rd February 2025
46AQI
46AQI
4th February 2025
20AQI
20AQI
5th February 2025
30AQI
30AQI
6th February 2025
29AQI
29AQI
7th February 2025
24AQI
24AQI
8th February 2025
34AQI
34AQI
9th February 2025
30AQI
30AQI
10th February 2025
28AQI
28AQI
11th February 2025
34AQI
34AQI
12th February 2025
42AQI
42AQI
13th February 2025
29AQI
29AQI
14th February 2025
37AQI
37AQI
15th February 2025
46AQI
46AQI
16th February 2025
27AQI
27AQI
17th February 2025
23AQI
23AQI
18th February 2025
23AQI
23AQI
19th February 2025
22AQI
22AQI
20th February 2025
23AQI
23AQI
21st February 2025
35AQI
35AQI
22nd February 2025
36AQI
36AQI
23rd February 2025
55AQI
55AQI
24th February 2025
43AQI
43AQI
25th February 2025
31AQI
31AQI
26th February 2025
45AQI
45AQI
27th February 2025
40AQI
40AQI
28th February 2025
24AQI
24AQI
1st March 2025
24AQI
24AQI
2nd March 2025
28AQI
28AQI
3rd March 2025
34AQI
34AQI
4th March 2025
36AQI
36AQI
5th March 2025
27AQI
27AQI
6th March 2025
24AQI
24AQI
7th March 2025
31AQI
31AQI
8th March 2025
30AQI
30AQI
9th March 2025
24AQI
24AQI
10th March 2025
26AQI
26AQI
11th March 2025
27AQI
27AQI
12th March 2025
36AQI
36AQI
13th March 2025
48AQI
48AQI
14th March 2025
47AQI
47AQI
15th March 2025
72AQI
72AQI
16th March 2025
21AQI
21AQI
17th March 2025
21AQI
21AQI
18th March 2025
24AQI
24AQI
19th March 2025
30AQI
30AQI
20th March 2025
16AQI
16AQI
21st March 2025
22AQI
22AQI
22nd March 2025
22AQI
22AQI
23rd March 2025
25AQI
25AQI
24th March 2025
20AQI
20AQI
25th March 2025
25AQI
25AQI
26th March 2025
52AQI
52AQI
27th March 2025
50AQI
50AQI
28th March 2025
41AQI
41AQI
29th March 2025
37AQI
37AQI
30th March 2025
31AQI
31AQI
31st March 2025
19AQI
19AQI
1st April 2025
27AQI
27AQI
2nd April 2025
35AQI
35AQI
3rd April 2025
26AQI
26AQI
4th April 2025
32AQI
32AQI
5th April 2025
22AQI
22AQI
6th April 2025
24AQI
24AQI
7th April 2025
26AQI
26AQI
8th April 2025
20AQI
20AQI
9th April 2025
36AQI
36AQI
10th April 2025
51AQI
51AQI
11th April 2025
51AQI
51AQI
12th April 2025
51AQI
51AQI
13th April 2025
37AQI
37AQI
14th April 2025
32AQI
32AQI
15th April 2025
20AQI
20AQI
16th April 2025
27AQI
27AQI
17th April 2025
37AQI
37AQI
18th April 2025
51AQI
51AQI
19th April 2025
38AQI
38AQI
20th April 2025
48AQI
48AQI
21st April 2025
20AQI
20AQI
22nd April 2025
27AQI
27AQI
23rd April 2025
23AQI
23AQI
24th April 2025
45AQI
45AQI
25th April 2025
28AQI
28AQI
26th April 2025
21AQI
21AQI
27th April 2025
26AQI
26AQI
28th April 2025
35AQI
35AQI
29th April 2025
32AQI
32AQI
30th April 2025
26AQI
26AQI
1st May 2025
32AQI
32AQI
2nd May 2025
41AQI
41AQI
3rd May 2025
17AQI
17AQI
4th May 2025
19AQI
19AQI
5th May 2025
25AQI
25AQI
6th May 2025
34AQI
34AQI
7th May 2025
37AQI
37AQI
8th May 2025
18AQI
18AQI
9th May 2025
23AQI
23AQI
10th May 2025
33AQI
33AQI
11th May 2025
29AQI
29AQI
12th May 2025
41AQI
41AQI
13th May 2025
40AQI
40AQI
14th May 2025
44AQI
44AQI
15th May 2025
52AQI
52AQI
16th May 2025
34AQI
34AQI
17th May 2025
25AQI
25AQI
18th May 2025
25AQI
25AQI
19th May 2025
20AQI
20AQI
20th May 2025
26AQI
26AQI
21st May 2025
21AQI
21AQI
22nd May 2025
17AQI
17AQI
23rd May 2025
27AQI
27AQI
24th May 2025
27AQI
27AQI
25th May 2025
24AQI
24AQI
26th May 2025
26AQI
26AQI
27th May 2025
29AQI
29AQI
28th May 2025
30AQI
30AQI
29th May 2025
36AQI
36AQI
30th May 2025
43AQI
43AQI
31st May 2025
44AQI
44AQI
1st June 2025
44AQI
44AQI
2nd June 2025
41AQI
41AQI
3rd June 2025
57AQI
57AQI
4th June 2025
53AQI
53AQI
5th June 2025
85AQI
85AQI
6th June 2025
78AQI
78AQI
7th June 2025
82AQI
82AQI
8th June 2025
75AQI
75AQI
9th June 2025
70AQI
70AQI
10th June 2025
62AQI
62AQI
11th June 2025
73AQI
73AQI
12th June 2025
82AQI
82AQI
13th June 2025
77AQI
77AQI
14th June 2025
67AQI
67AQI
15th June 2025
56AQI
56AQI
16th June 2025
56AQI
56AQI
17th June 2025
49AQI
49AQI
18th June 2025
34AQI
34AQI
19th June 2025
30AQI
30AQI
20th June 2025
39AQI
39AQI
21st June 2025
43AQI
43AQI
22nd June 2025
47AQI
47AQI
23rd June 2025
56AQI
56AQI
24th June 2025
42AQI
42AQI
25th June 2025
35AQI
35AQI
26th June 2025
47AQI
47AQI
27th June 2025
34AQI
34AQI
28th June 2025
24AQI
24AQI
29th June 2025
39AQI
39AQI
30th June 2025
34AQI
34AQI
1st July 2025
31AQI
31AQI
2nd July 2025
52AQI
52AQI
3rd July 2025
52AQI
52AQI
4th July 2025
54AQI
54AQI
5th July 2025
67AQI
67AQI
6th July 2025
50AQI
50AQI
7th July 2025
54AQI
54AQI
8th July 2025
66AQI
66AQI
9th July 2025
47AQI
47AQI
10th July 2025
48AQI
48AQI
11th July 2025
40AQI
40AQI
12th July 2025
27AQI
27AQI
13th July 2025
57AQI
57AQI
14th July 2025
72AQI
72AQI
15th July 2025
75AQI
75AQI
16th July 2025
46AQI
46AQI
17th July 2025
26AQI
26AQI
18th July 2025
20AQI
20AQI
19th July 2025
31AQI
31AQI
20th July 2025
26AQI
26AQI
21st July 2025
70AQI
70AQI
22nd July 2025
72AQI
72AQI
23rd July 2025
64AQI
64AQI
24th July 2025
54AQI
54AQI
25th July 2025
33AQI
33AQI
26th July 2025
28AQI
28AQI
27th July 2025
32AQI
32AQI
28th July 2025
40AQI
40AQI
29th July 2025
42AQI
42AQI
30th July 2025
57AQI
57AQI
31st July 2025
115AQI
115AQI
1st August 2025
107AQI
107AQI
2nd August 2025
92AQI
92AQI
3rd August 2025
88AQI
88AQI
28AQI
33AQI
31AQI
32AQI
30AQI
54AQI
50AQI
96AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202538AQI
30
1
27
1
29
2
26
4
30
1
15
15
16
14
1
2
1
173
40
2
Highest AQI recorded in
August96AQI
Lowest AQI recorded in
January28AQI
202433AQI
28
3
21
8
30
1
30
30
1
26
3
27
4
23
8
28
2
28
3
29
1
28
3
328
37
Highest AQI recorded in
February39AQI
Lowest AQI recorded in
April26AQI
202343AQI
22
9
26
2
26
5
25
5
25
6
5
22
1
2
17
6
3
16
14
25
5
28
3
24
5
27
4
266
86
4
2
Highest AQI recorded in
June80AQI
Lowest AQI recorded in
December34AQI
202237AQI
26
5
16
5
27
4
27
2
27
4
26
4
18
5
1
27
2
25
6
21
8
19
12
260
57
Highest AQI recorded in
December43AQI
Lowest AQI recorded in
April31AQI
202140AQI
13
12
20
8
24
7
17
8
1
30
1
28
2
17
12
20
10
28
2
27
4
21
7
22
9
267
82
1
Highest AQI recorded in
July47AQI
Lowest AQI recorded in
June33AQI
202037AQI
11
2
20
1
18
26
4
26
5
28
3
27
2
29
2
24
4
19
10
228
33
Highest AQI recorded in
December43AQI
Lowest AQI recorded in
May31AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
43AQILeast Polluted Year Recorded
2024(Avg.)
33AQINaperville's annual 2025 AQI (38) shows an average percentage change of -0.1% (improved AQI) compared to previous years: 2020 (37), 2021 (40), 2022 (37), 2023 (43), 2024 (33).
