Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Naperville Park District, 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 Park District, Naperville, Illinois, United States

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2025
107AQI
Lowest AQI recorded on
12th Aug 2025
37AQI

Same Day Analysis (12th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 37 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 12th Aug - 13th Aug 2025

Naperville Park District, Naperville, Illinois, United States

AQI
Day
Night
.

5 AM12th Aug 2025

8 PM

4 AM13th Aug 2025

Day time
Avg. Highest Time
3PM12th Aug

54AQI

Avg. Lowest Time
10AM12th Aug

31AQI

Night time
Avg. Highest Time
8PM12th Aug

37AQI

Avg. Lowest Time
2AM13th Aug

30AQI

In the last 24 hours,

Naperville Park District's AQI reached its highest point of 54 at 3 PM during the Day, while the lowest point, 30, was recorded at 2 AM during the Night between 12th Aug and 13th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Naperville Park District, Naperville, Illinois, United States

JulAug
14th - 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 - 12th12th - 13th13th
Day
Night
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
5th Aug 2025676 AMAQI
5th Aug 2025707 AMAQI
5th Aug 2025708 AMAQI
5th Aug 2025779 AMAQI
5th Aug 20259010 AMAQI
5th Aug 20259211 AMAQI
5th Aug 20258812 PMAQI
5th Aug 2025841 PMAQI
5th Aug 2025822 PMAQI
5th Aug 2025803 PMAQI
5th Aug 2025844 PMAQI
5th Aug 2025765 PMAQI
5th Aug 2025776 PMAQI
5th Aug 2025737 PMAQI
5th Aug 2025798 PMAQI
5th Aug 2025889 PMAQI
5th Aug 202510610 PMAQI
5th Aug 202510711 PMAQI
6th Aug 202510912 AMAQI
6th Aug 20251151 AMAQI
6th Aug 20251152 AMAQI
6th Aug 20251103 AMAQI
6th Aug 20251104 AMAQI

24°C19/31°C

6th Aug 20251085 AMAQI
6th Aug 20251116 AMAQI
6th Aug 20251107 AMAQI
6th Aug 20251208 AMAQI
6th Aug 20251129 AMAQI
6th Aug 202510310 AMAQI
6th Aug 20259411 AMAQI
6th Aug 20258612 PMAQI
6th Aug 2025811 PMAQI
6th Aug 2025742 PMAQI
6th Aug 2025703 PMAQI
6th Aug 2025694 PMAQI
6th Aug 2025665 PMAQI
6th Aug 2025666 PMAQI
6th Aug 2025987 PMAQI
6th Aug 2025808 PMAQI
6th Aug 2025629 PMAQI
6th Aug 20256110 PMAQI
6th Aug 20256511 PMAQI
7th Aug 20257212 AMAQI
7th Aug 2025791 AMAQI
7th Aug 2025612 AMAQI
7th Aug 2025583 AMAQI
7th Aug 2025594 AMAQI

26°C20/33°C

7th Aug 2025605 AMAQI
7th Aug 2025596 AMAQI
7th Aug 2025607 AMAQI
7th Aug 2025608 AMAQI
7th Aug 2025599 AMAQI
7th Aug 20255710 AMAQI
7th Aug 20255711 AMAQI
7th Aug 20255812 PMAQI
7th Aug 2025581 PMAQI
7th Aug 2025602 PMAQI
7th Aug 2025613 PMAQI
7th Aug 2025604 PMAQI
7th Aug 2025605 PMAQI
7th Aug 2025626 PMAQI
7th Aug 2025627 PMAQI
7th Aug 2025618 PMAQI
7th Aug 2025619 PMAQI
7th Aug 20256210 PMAQI
7th Aug 20256111 PMAQI
8th Aug 20256212 AMAQI
8th Aug 2025621 AMAQI
8th Aug 2025562 AMAQI
8th Aug 2025563 AMAQI
8th Aug 2025564 AMAQI

26°C20/32°C

8th Aug 2025565 AMAQI
8th Aug 2025566 AMAQI
8th Aug 2025567 AMAQI
8th Aug 2025568 AMAQI
8th Aug 2025559 AMAQI
8th Aug 20255610 AMAQI
8th Aug 20255811 AMAQI
8th Aug 20255812 PMAQI
8th Aug 2025571 PMAQI
8th Aug 2025572 PMAQI
8th Aug 2025583 PMAQI
8th Aug 2025584 PMAQI
8th Aug 2025575 PMAQI
8th Aug 2025576 PMAQI
8th Aug 2025577 PMAQI
8th Aug 2025588 PMAQI
8th Aug 2025579 PMAQI
8th Aug 20255710 PMAQI
8th Aug 20255811 PMAQI
9th Aug 20255812 AMAQI
9th Aug 2025581 AMAQI
9th Aug 2025572 AMAQI
9th Aug 2025583 AMAQI
9th Aug 2025564 AMAQI

28°C22/36°C

9th Aug 2025565 AMAQI
9th Aug 2025566 AMAQI
9th Aug 2025577 AMAQI
9th Aug 2025568 AMAQI
9th Aug 2025579 AMAQI
9th Aug 20255710 AMAQI
9th Aug 20255611 AMAQI
9th Aug 20255612 PMAQI
9th Aug 2025561 PMAQI
9th Aug 2025562 PMAQI
9th Aug 2025573 PMAQI
9th Aug 2025564 PMAQI
9th Aug 2025575 PMAQI
9th Aug 2025576 PMAQI
9th Aug 2025587 PMAQI
9th Aug 2025588 PMAQI
9th Aug 2025569 PMAQI
9th Aug 20255510 PMAQI
9th Aug 20255511 PMAQI
10th Aug 20255512 AMAQI
10th Aug 2025551 AMAQI
10th Aug 2025522 AMAQI
10th Aug 2025503 AMAQI
10th Aug 2025474 AMAQI

28°C21/36°C

10th Aug 2025485 AMAQI
10th Aug 2025506 AMAQI
10th Aug 2025527 AMAQI
10th Aug 2025508 AMAQI
10th Aug 2025499 AMAQI
10th Aug 20254910 AMAQI
10th Aug 20254911 AMAQI
10th Aug 20254812 PMAQI
10th Aug 2025481 PMAQI
10th Aug 2025512 PMAQI
10th Aug 2025523 PMAQI
10th Aug 2025524 PMAQI
10th Aug 2025525 PMAQI
10th Aug 2025526 PMAQI
10th Aug 2025527 PMAQI
10th Aug 2025528 PMAQI
10th Aug 2025529 PMAQI
10th Aug 20255210 PMAQI
10th Aug 20255111 PMAQI
11th Aug 20255112 AMAQI
11th Aug 2025481 AMAQI
11th Aug 2025482 AMAQI
11th Aug 2025493 AMAQI
11th Aug 2025484 AMAQI

28°C23/36°C

11th Aug 2025485 AMAQI
11th Aug 2025466 AMAQI
11th Aug 2025467 AMAQI
11th Aug 2025468 AMAQI
11th Aug 2025489 AMAQI
11th Aug 20254910 AMAQI
11th Aug 20254911 AMAQI
11th Aug 20254512 PMAQI
11th Aug 2025411 PMAQI
11th Aug 2025402 PMAQI
11th Aug 2025383 PMAQI
11th Aug 2025384 PMAQI
11th Aug 2025375 PMAQI
11th Aug 2025356 PMAQI
11th Aug 2025467 PMAQI
11th Aug 2025418 PMAQI
11th Aug 2025369 PMAQI
11th Aug 20253710 PMAQI
11th Aug 20253511 PMAQI
12th Aug 20253212 AMAQI
12th Aug 2025301 AMAQI
12th Aug 2025312 AMAQI
12th Aug 2025323 AMAQI
12th Aug 2025334 AMAQI

25°C22/31°C

12th Aug 2025355 AMAQI
12th Aug 2025386 AMAQI
12th Aug 2025397 AMAQI
12th Aug 2025338 AMAQI
12th Aug 2025349 AMAQI
12th Aug 20253110 AMAQI
12th Aug 20253411 AMAQI
12th Aug 20254112 PMAQI
12th Aug 2025481 PMAQI
12th Aug 2025522 PMAQI
12th Aug 2025543 PMAQI
12th Aug 2025524 PMAQI
12th Aug 2025525 PMAQI
12th Aug 2025486 PMAQI
12th Aug 2025347 PMAQI
12th Aug 2025378 PMAQI
12th Aug 2025369 PMAQI
12th Aug 20253410 PMAQI
12th Aug 20253511 PMAQI
13th Aug 20253012 AMAQI
13th Aug 2025321 AMAQI
13th Aug 2025302 AMAQI
13th Aug 2025323 AMAQI
13th Aug 2025344 AMAQI

27°C22/34°C

13th Aug 2025345 AMAQI
5 AM
13th Aug 2025406 AMAQI
13th Aug 2025507 AMAQI
13th Aug 2025548 AMAQI
13th Aug 2025579 AMAQI
13th Aug 20255910 AMAQI
13th Aug 20255911 AMAQI
13th Aug 20256012 PMAQI
12 PM
13th Aug 2025601 PMAQI
13th Aug 2025602 PMAQI
13th Aug 2025613 PMAQI
13th Aug 2025604 PMAQI
8 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 8 PM

59AQI

16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 6 AM

57AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 59), while the lowest AQI was between 5 AM to 6 AM (Avg. 57).
Night time
Avg. Highest Time
12 AM - 1 AM

58AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 11 PM

57AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 58), while the lowest AQI was between 2 AM to 11 PM (Avg. 57).

2025 Days Vs Air Quality

Naperville Park District, Naperville, Illinois, United States

2025

68%

94

31%

43

1%

2

Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)

Good
94 Days
Moderate
43 Days
Poor
2 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 68%

Health Risk Level:

Moderate

In 2025, 68% of 225 days were within WHO’s safe air quality limits, and 32% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.

Annual Air Quality Insights

Naperville Park District, 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 March 2025
49AQI
2nd March 2025
41AQI
3rd March 2025
37AQI
4th March 2025
31AQI
5th March 2025
19AQI
1st April 2025
27AQI
2nd April 2025
35AQI
3rd April 2025
26AQI
4th April 2025
32AQI
5th April 2025
22AQI
6th April 2025
24AQI
7th April 2025
26AQI
8th April 2025
20AQI
9th April 2025
36AQI
10th April 2025
51AQI
11th April 2025
51AQI
12th April 2025
51AQI
13th April 2025
37AQI
14th April 2025
32AQI
15th April 2025
20AQI
16th April 2025
27AQI
17th April 2025
37AQI
18th April 2025
51AQI
19th April 2025
38AQI
20th April 2025
48AQI
21st April 2025
20AQI
22nd April 2025
27AQI
23rd April 2025
23AQI
24th April 2025
45AQI
25th April 2025
28AQI
26th April 2025
21AQI
27th April 2025
26AQI
28th April 2025
35AQI
29th April 2025
32AQI
30th April 2025
26AQI
1st May 2025
32AQI
2nd May 2025
41AQI
3rd May 2025
17AQI
4th May 2025
19AQI
5th May 2025
25AQI
6th May 2025
34AQI
7th May 2025
37AQI
8th May 2025
18AQI
9th May 2025
23AQI
10th May 2025
33AQI
11th May 2025
29AQI
12th May 2025
41AQI
13th May 2025
40AQI
14th May 2025
44AQI
15th May 2025
52AQI
16th May 2025
34AQI
17th May 2025
25AQI
18th May 2025
25AQI
19th May 2025
20AQI
20th May 2025
26AQI
21st May 2025
21AQI
22nd May 2025
17AQI
23rd May 2025
27AQI
24th May 2025
27AQI
25th May 2025
24AQI
26th May 2025
26AQI
27th May 2025
29AQI
28th May 2025
30AQI
29th May 2025
36AQI
30th May 2025
43AQI
31st May 2025
44AQI
1st June 2025
44AQI
2nd June 2025
41AQI
3rd June 2025
57AQI
4th June 2025
53AQI
5th June 2025
85AQI
6th June 2025
78AQI
7th June 2025
82AQI
8th June 2025
75AQI
9th June 2025
70AQI
10th June 2025
62AQI
11th June 2025
74AQI
12th June 2025
82AQI
13th June 2025
77AQI
14th June 2025
67AQI
15th June 2025
56AQI
16th June 2025
56AQI
17th June 2025
49AQI
18th June 2025
34AQI
19th June 2025
30AQI
20th June 2025
39AQI
21st June 2025
43AQI
22nd June 2025
47AQI
23rd June 2025
56AQI
24th June 2025
42AQI
25th June 2025
35AQI
26th June 2025
47AQI
27th June 2025
34AQI
28th June 2025
24AQI
29th June 2025
39AQI
30th June 2025
33AQI
1st July 2025
31AQI
2nd July 2025
52AQI
3rd July 2025
52AQI
4th July 2025
54AQI
5th July 2025
67AQI
6th July 2025
49AQI
7th July 2025
54AQI
8th July 2025
66AQI
9th July 2025
47AQI
10th July 2025
48AQI
11th July 2025
40AQI
12th July 2025
27AQI
13th July 2025
57AQI
14th July 2025
72AQI
15th July 2025
75AQI
16th July 2025
46AQI
17th July 2025
25AQI
18th July 2025
20AQI
19th July 2025
31AQI
20th July 2025
26AQI
21st July 2025
70AQI
22nd July 2025
72AQI
23rd July 2025
64AQI
24th July 2025
54AQI
25th July 2025
33AQI
26th July 2025
28AQI
27th July 2025
32AQI
28th July 2025
40AQI
29th July 2025
42AQI
30th July 2025
57AQI
31st July 2025
116AQI
1st August 2025
107AQI
2nd August 2025
92AQI
3rd August 2025
88AQI
4th August 2025
87AQI
5th August 2025
78AQI
6th August 2025
91AQI
7th August 2025
61AQI
8th August 2025
57AQI
9th August 2025
57AQI
10th August 2025
51AQI
11th August 2025
43AQI
12th August 2025
37AQI

35AQI

32AQI

30AQI

54AQI

50AQI

71AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202544AQI

5
26
4
30
1
15
15
16
14
1
2
9
1
94
43
2

Highest AQI recorded in

August

71AQI

Lowest AQI recorded in

May

30AQI

Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
44AQI
Least Polluted Year Recorded
2025(Avg.)
44AQI

Naperville Park District's annual 2025 AQI (44) shows an average percentage change of NaN% (improved AQI) compared to previous years: .