Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Ashburn, Chicago, 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

Ashburn, Chicago, Illinois, United States

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
6th Aug 2025
90AQI
Lowest AQI recorded on
12th Aug 2025
30AQI

Same Day Analysis (13th 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: 13th Aug - 14th Aug 2025

Ashburn, Chicago, Illinois, United States

AQI
Day
Night
.

5 AM13th Aug 2025

8 PM

4 AM14th Aug 2025

Day time
Avg. Highest Time
3PM13th Aug

62AQI

Avg. Lowest Time
6AM13th Aug

24AQI

Night time
Avg. Highest Time
9PM13th Aug

58AQI

Avg. Lowest Time
8PM13th Aug

43AQI

In the last 24 hours,

Ashburn's AQI reached its highest point of 62 at 3 PM during the Day, while the lowest point, 24, was recorded at 6 AM during the Day between 13th Aug and 14th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Ashburn, Chicago, Illinois, United States

JulAug
15th - 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 - 14th14th
Day
Night
15th Jul 2025755 AMAQI
15th Jul 2025766 AMAQI
15th Jul 2025827 AMAQI
15th Jul 2025808 AMAQI
15th Jul 2025789 AMAQI
15th Jul 20257610 AMAQI
15th Jul 20257411 AMAQI
15th Jul 20257112 PMAQI
15th Jul 2025671 PMAQI
15th Jul 2025642 PMAQI
15th Jul 2025723 PMAQI
15th Jul 2025714 PMAQI
15th Jul 2025765 PMAQI
15th Jul 2025746 PMAQI
15th Jul 2025777 PMAQI
15th Jul 2025758 PMAQI
15th Jul 2025729 PMAQI
15th Jul 20257210 PMAQI
15th Jul 20257011 PMAQI
16th Jul 20256812 AMAQI
16th Jul 2025601 AMAQI
16th Jul 2025372 AMAQI
16th Jul 2025353 AMAQI
16th Jul 2025344 AMAQI

27°C21/34°C

16th Jul 2025355 AMAQI
16th Jul 2025366 AMAQI
16th Jul 2025437 AMAQI
16th Jul 2025448 AMAQI
16th Jul 2025429 AMAQI
16th Jul 20254310 AMAQI
16th Jul 20254211 AMAQI
16th Jul 20254112 PMAQI
16th Jul 2025401 PMAQI
16th Jul 2025392 PMAQI
16th Jul 2025443 PMAQI
16th Jul 2025434 PMAQI
16th Jul 2025445 PMAQI
16th Jul 2025416 PMAQI
16th Jul 2025457 PMAQI
16th Jul 2025438 PMAQI
16th Jul 2025419 PMAQI
16th Jul 20254010 PMAQI
16th Jul 20253811 PMAQI
17th Jul 20253712 AMAQI
17th Jul 2025341 AMAQI
17th Jul 2025312 AMAQI
17th Jul 2025303 AMAQI
17th Jul 2025304 AMAQI

28°C22/34°C

17th Jul 2025305 AMAQI
17th Jul 2025306 AMAQI
17th Jul 2025297 AMAQI
17th Jul 2025308 AMAQI
17th Jul 2025309 AMAQI
17th Jul 20252910 AMAQI
17th Jul 20252911 AMAQI
17th Jul 20253012 PMAQI
17th Jul 2025301 PMAQI
17th Jul 2025302 PMAQI
17th Jul 2025303 PMAQI
17th Jul 2025304 PMAQI
17th Jul 2025305 PMAQI
17th Jul 2025306 PMAQI
17th Jul 2025287 PMAQI
17th Jul 2025298 PMAQI
17th Jul 2025289 PMAQI
17th Jul 20252810 PMAQI
17th Jul 20252911 PMAQI
18th Jul 20252812 AMAQI
18th Jul 2025281 AMAQI
18th Jul 2025282 AMAQI
18th Jul 2025283 AMAQI
18th Jul 2025294 AMAQI

22°C19/24°C

18th Jul 2025285 AMAQI
18th Jul 2025276 AMAQI
18th Jul 2025267 AMAQI
18th Jul 2025288 AMAQI
18th Jul 2025279 AMAQI
18th Jul 20252710 AMAQI
18th Jul 20252711 AMAQI
18th Jul 20252712 PMAQI
18th Jul 2025301 PMAQI
18th Jul 2025302 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025334 PMAQI
18th Jul 2025335 PMAQI
18th Jul 2025346 PMAQI
18th Jul 2025287 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025369 PMAQI
18th Jul 20253510 PMAQI
18th Jul 20253311 PMAQI
19th Jul 20253612 AMAQI
19th Jul 2025351 AMAQI
19th Jul 2025392 AMAQI
19th Jul 2025373 AMAQI
19th Jul 2025344 AMAQI

23°C17/31°C

19th Jul 2025305 AMAQI
19th Jul 2025306 AMAQI
19th Jul 2025307 AMAQI
19th Jul 2025318 AMAQI
19th Jul 2025319 AMAQI
19th Jul 20252910 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20253012 PMAQI
19th Jul 2025331 PMAQI
19th Jul 2025342 PMAQI
19th Jul 2025353 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025325 PMAQI
19th Jul 2025306 PMAQI
19th Jul 2025327 PMAQI
19th Jul 2025338 PMAQI
19th Jul 2025329 PMAQI
19th Jul 20253010 PMAQI
19th Jul 20253011 PMAQI
20th Jul 20253012 AMAQI
20th Jul 2025301 AMAQI
20th Jul 2025232 AMAQI
20th Jul 2025233 AMAQI
20th Jul 2025224 AMAQI

25°C21/29°C

20th Jul 2025225 AMAQI
20th Jul 2025256 AMAQI
20th Jul 2025277 AMAQI
20th Jul 2025258 AMAQI
20th Jul 2025229 AMAQI
20th Jul 20252110 AMAQI
20th Jul 20252211 AMAQI
20th Jul 20252312 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025242 PMAQI
20th Jul 2025263 PMAQI
20th Jul 2025264 PMAQI
20th Jul 2025265 PMAQI
20th Jul 2025266 PMAQI
20th Jul 2025277 PMAQI
20th Jul 2025278 PMAQI
20th Jul 2025289 PMAQI
20th Jul 20252910 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20254212 AMAQI
21st Jul 2025551 AMAQI
21st Jul 2025782 AMAQI
21st Jul 2025733 AMAQI
21st Jul 2025824 AMAQI

22°C20/22°C

21st Jul 2025865 AMAQI
21st Jul 2025886 AMAQI
21st Jul 2025857 AMAQI
21st Jul 2025748 AMAQI
21st Jul 2025629 AMAQI
21st Jul 20255810 AMAQI
21st Jul 20255811 AMAQI
21st Jul 20255812 PMAQI
21st Jul 2025601 PMAQI
21st Jul 2025642 PMAQI
21st Jul 2025673 PMAQI
21st Jul 2025684 PMAQI
21st Jul 2025685 PMAQI
21st Jul 2025686 PMAQI
21st Jul 2025687 PMAQI
21st Jul 2025708 PMAQI
21st Jul 2025709 PMAQI
21st Jul 20257010 PMAQI
21st Jul 20257311 PMAQI
22nd Jul 20256912 AMAQI
22nd Jul 2025741 AMAQI
22nd Jul 2025812 AMAQI
22nd Jul 2025843 AMAQI
22nd Jul 2025814 AMAQI

24°C19/29°C

22nd Jul 2025935 AMAQI
22nd Jul 2025826 AMAQI
22nd Jul 2025847 AMAQI
22nd Jul 2025818 AMAQI
22nd Jul 2025839 AMAQI
22nd Jul 20258210 AMAQI
22nd Jul 20257911 AMAQI
22nd Jul 20258112 PMAQI
22nd Jul 2025781 PMAQI
22nd Jul 2025792 PMAQI
22nd Jul 2025803 PMAQI
22nd Jul 2025804 PMAQI
22nd Jul 2025785 PMAQI
22nd Jul 2025746 PMAQI
22nd Jul 2025817 PMAQI
22nd Jul 2025808 PMAQI
22nd Jul 2025769 PMAQI
22nd Jul 20257610 PMAQI
22nd Jul 20257611 PMAQI
23rd Jul 20257512 AMAQI
23rd Jul 2025701 AMAQI
23rd Jul 2025582 AMAQI
23rd Jul 2025573 AMAQI
23rd Jul 2025564 AMAQI

26°C20/34°C

23rd Jul 2025565 AMAQI
23rd Jul 2025576 AMAQI
23rd Jul 2025587 AMAQI
23rd Jul 2025608 AMAQI
23rd Jul 2025619 AMAQI
23rd Jul 20256210 AMAQI
23rd Jul 20256011 AMAQI
23rd Jul 20256112 PMAQI
23rd Jul 2025601 PMAQI
23rd Jul 2025592 PMAQI
23rd Jul 2025623 PMAQI
23rd Jul 2025614 PMAQI
23rd Jul 2025605 PMAQI
23rd Jul 2025616 PMAQI
23rd Jul 2025627 PMAQI
23rd Jul 2025618 PMAQI
23rd Jul 2025609 PMAQI
23rd Jul 20256010 PMAQI
23rd Jul 20256011 PMAQI
24th Jul 20255912 AMAQI
24th Jul 2025571 AMAQI
24th Jul 2025532 AMAQI
24th Jul 2025533 AMAQI
24th Jul 2025534 AMAQI

27°C21/36°C

24th Jul 2025525 AMAQI
24th Jul 2025536 AMAQI
24th Jul 2025547 AMAQI
24th Jul 2025548 AMAQI
24th Jul 2025549 AMAQI
24th Jul 20255510 AMAQI
24th Jul 20255411 AMAQI
24th Jul 20255312 PMAQI
24th Jul 2025541 PMAQI
24th Jul 2025542 PMAQI
24th Jul 2025553 PMAQI
24th Jul 2025554 PMAQI
24th Jul 2025535 PMAQI
24th Jul 2025536 PMAQI
24th Jul 2025567 PMAQI
24th Jul 2025548 PMAQI
24th Jul 2025499 PMAQI
24th Jul 20255010 PMAQI
24th Jul 20254711 PMAQI
25th Jul 20254812 AMAQI
25th Jul 2025421 AMAQI
25th Jul 2025262 AMAQI
25th Jul 2025263 AMAQI
25th Jul 2025284 AMAQI

29°C24/38°C

25th Jul 2025305 AMAQI
25th Jul 2025286 AMAQI
25th Jul 2025287 AMAQI
25th Jul 2025298 AMAQI
25th Jul 2025289 AMAQI
25th Jul 20252810 AMAQI
25th Jul 20252911 AMAQI
25th Jul 20252912 PMAQI
25th Jul 2025311 PMAQI
25th Jul 2025302 PMAQI
25th Jul 2025323 PMAQI
25th Jul 2025314 PMAQI
25th Jul 2025305 PMAQI
25th Jul 2025316 PMAQI
25th Jul 2025307 PMAQI
25th Jul 2025308 PMAQI
25th Jul 2025319 PMAQI
25th Jul 20253210 PMAQI
25th Jul 20253111 PMAQI
26th Jul 20253212 AMAQI
26th Jul 2025331 AMAQI
26th Jul 2025332 AMAQI
26th Jul 2025323 AMAQI
26th Jul 2025324 AMAQI

25°C23/28°C

26th Jul 2025305 AMAQI
26th Jul 2025316 AMAQI
26th Jul 2025307 AMAQI
26th Jul 2025288 AMAQI
26th Jul 2025279 AMAQI
26th Jul 20252610 AMAQI
26th Jul 20252811 AMAQI
26th Jul 20252812 PMAQI
26th Jul 2025281 PMAQI
26th Jul 2025292 PMAQI
26th Jul 2025313 PMAQI
26th Jul 2025314 PMAQI
26th Jul 2025315 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025317 PMAQI
26th Jul 2025308 PMAQI
26th Jul 2025319 PMAQI
26th Jul 20253110 PMAQI
26th Jul 20253011 PMAQI
27th Jul 20253012 AMAQI
27th Jul 2025291 AMAQI
27th Jul 2025262 AMAQI
27th Jul 2025263 AMAQI
27th Jul 2025264 AMAQI

26°C23/29°C

27th Jul 2025265 AMAQI
27th Jul 2025266 AMAQI
27th Jul 2025267 AMAQI
27th Jul 2025278 AMAQI
27th Jul 2025269 AMAQI
27th Jul 20252710 AMAQI
27th Jul 20252811 AMAQI
27th Jul 20253012 PMAQI
27th Jul 2025321 PMAQI
27th Jul 2025322 PMAQI
27th Jul 2025313 PMAQI
27th Jul 2025314 PMAQI
27th Jul 2025315 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025287 PMAQI
27th Jul 2025288 PMAQI
27th Jul 2025309 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253211 PMAQI
28th Jul 20253212 AMAQI
28th Jul 2025341 AMAQI
28th Jul 2025362 AMAQI
28th Jul 2025333 AMAQI
28th Jul 2025334 AMAQI

28°C23/32°C

28th Jul 2025335 AMAQI
28th Jul 2025336 AMAQI
28th Jul 2025357 AMAQI
28th Jul 2025388 AMAQI
28th Jul 2025369 AMAQI
28th Jul 20253410 AMAQI
28th Jul 20253311 AMAQI
28th Jul 20253412 PMAQI
28th Jul 2025351 PMAQI
28th Jul 2025382 PMAQI
28th Jul 2025403 PMAQI
28th Jul 2025414 PMAQI
28th Jul 2025385 PMAQI
28th Jul 2025386 PMAQI
28th Jul 2025357 PMAQI
28th Jul 2025338 PMAQI
28th Jul 2025359 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253511 PMAQI
29th Jul 20253412 AMAQI
29th Jul 2025351 AMAQI
29th Jul 2025362 AMAQI
29th Jul 2025373 AMAQI
29th Jul 2025354 AMAQI

28°C23/34°C

29th Jul 2025365 AMAQI
29th Jul 2025386 AMAQI
29th Jul 2025387 AMAQI
29th Jul 2025408 AMAQI
29th Jul 2025419 AMAQI
29th Jul 20254410 AMAQI
29th Jul 20254011 AMAQI
29th Jul 20253812 PMAQI
29th Jul 2025411 PMAQI
29th Jul 2025412 PMAQI
29th Jul 2025413 PMAQI
29th Jul 2025384 PMAQI
29th Jul 2025395 PMAQI
29th Jul 2025406 PMAQI
29th Jul 2025397 PMAQI
29th Jul 2025388 PMAQI
29th Jul 2025389 PMAQI
29th Jul 20253910 PMAQI
29th Jul 20254011 PMAQI
30th Jul 20253912 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025382 AMAQI
30th Jul 2025383 AMAQI
30th Jul 2025364 AMAQI

29°C21/37°C

30th Jul 2025365 AMAQI
30th Jul 2025376 AMAQI
30th Jul 2025397 AMAQI
30th Jul 2025438 AMAQI
30th Jul 2025449 AMAQI
30th Jul 20254210 AMAQI
30th Jul 20253811 AMAQI
30th Jul 20253512 PMAQI
30th Jul 2025361 PMAQI
30th Jul 2025372 PMAQI
30th Jul 2025373 PMAQI
30th Jul 2025374 PMAQI
30th Jul 2025375 PMAQI
30th Jul 2025376 PMAQI
30th Jul 2025377 PMAQI
30th Jul 2025378 PMAQI
30th Jul 2025459 PMAQI
30th Jul 20255010 PMAQI
30th Jul 20254911 PMAQI
31st Jul 20255012 AMAQI
31st Jul 2025541 AMAQI
31st Jul 2025552 AMAQI
31st Jul 2025533 AMAQI
31st Jul 2025564 AMAQI

25°C22/28°C

31st Jul 2025635 AMAQI
31st Jul 2025636 AMAQI
31st Jul 2025677 AMAQI
31st Jul 2025768 AMAQI
31st Jul 2025849 AMAQI
31st Jul 20258010 AMAQI
31st Jul 20258711 AMAQI
31st Jul 20258712 PMAQI
31st Jul 20251081 PMAQI
31st Jul 20251102 PMAQI
31st Jul 20251193 PMAQI
31st Jul 2025924 PMAQI
31st Jul 20251165 PMAQI
31st Jul 20251086 PMAQI
31st Jul 2025747 PMAQI
31st Jul 2025878 PMAQI
31st Jul 20251039 PMAQI
31st Jul 202510210 PMAQI
31st Jul 202510311 PMAQI
1st Aug 202510412 AMAQI
1st Aug 2025881 AMAQI
1st Aug 2025812 AMAQI
1st Aug 2025853 AMAQI
1st Aug 2025884 AMAQI

23°C20/26°C

1st Aug 2025885 AMAQI
1st Aug 2025886 AMAQI
1st Aug 2025787 AMAQI
1st Aug 2025838 AMAQI
1st Aug 2025969 AMAQI
1st Aug 20257210 AMAQI
1st Aug 20257211 AMAQI
1st Aug 20257012 PMAQI
1st Aug 2025681 PMAQI
1st Aug 2025662 PMAQI
1st Aug 2025653 PMAQI
1st Aug 2025624 PMAQI
1st Aug 2025785 PMAQI
1st Aug 2025776 PMAQI
1st Aug 2025817 PMAQI
1st Aug 2025748 PMAQI
1st Aug 2025709 PMAQI
1st Aug 20256710 PMAQI
1st Aug 20257211 PMAQI
2nd Aug 20257312 AMAQI
2nd Aug 2025741 AMAQI
2nd Aug 2025662 AMAQI
2nd Aug 2025703 AMAQI
2nd Aug 2025724 AMAQI

22°C18/27°C

2nd Aug 2025735 AMAQI
2nd Aug 2025676 AMAQI
2nd Aug 2025637 AMAQI
2nd Aug 2025648 AMAQI
2nd Aug 2025639 AMAQI
2nd Aug 20256510 AMAQI
2nd Aug 20255811 AMAQI
2nd Aug 20255612 PMAQI
2nd Aug 2025501 PMAQI
2nd Aug 2025462 PMAQI
2nd Aug 2025493 PMAQI
2nd Aug 2025464 PMAQI
2nd Aug 2025505 PMAQI
2nd Aug 2025496 PMAQI
2nd Aug 2025647 PMAQI
2nd Aug 2025588 PMAQI
2nd Aug 2025589 PMAQI
2nd Aug 20255510 PMAQI
2nd Aug 20255811 PMAQI
3rd Aug 20256612 AMAQI
3rd Aug 2025621 AMAQI
3rd Aug 2025632 AMAQI
3rd Aug 2025623 AMAQI
3rd Aug 2025634 AMAQI

22°C17/28°C

3rd Aug 2025635 AMAQI
3rd Aug 2025646 AMAQI
3rd Aug 2025607 AMAQI
3rd Aug 2025588 AMAQI
3rd Aug 2025629 AMAQI
3rd Aug 20256010 AMAQI
3rd Aug 20255811 AMAQI
3rd Aug 20255812 PMAQI
3rd Aug 2025611 PMAQI
3rd Aug 2025602 PMAQI
3rd Aug 2025583 PMAQI
3rd Aug 2025554 PMAQI
3rd Aug 2025585 PMAQI
3rd Aug 2025576 PMAQI
3rd Aug 2025857 PMAQI
3rd Aug 2025808 PMAQI
3rd Aug 2025809 PMAQI
3rd Aug 20258610 PMAQI
3rd Aug 20259811 PMAQI
4th Aug 202510812 AMAQI
4th Aug 20251181 AMAQI
4th Aug 20251122 AMAQI
4th Aug 20251173 AMAQI
4th Aug 20251144 AMAQI

22°C16/29°C

4th Aug 2025995 AMAQI
4th Aug 2025936 AMAQI
4th Aug 2025857 AMAQI
4th Aug 2025848 AMAQI
4th Aug 2025799 AMAQI
4th Aug 20257610 AMAQI
4th Aug 20257311 AMAQI
4th Aug 20256612 PMAQI
4th Aug 2025621 PMAQI
4th Aug 2025602 PMAQI
4th Aug 2025623 PMAQI
4th Aug 2025624 PMAQI
4th Aug 2025605 PMAQI
4th Aug 2025606 PMAQI
4th Aug 2025807 PMAQI
4th Aug 2025708 PMAQI
4th Aug 2025619 PMAQI
4th Aug 20256010 PMAQI
4th Aug 20256211 PMAQI
5th Aug 20256412 AMAQI
5th Aug 2025651 AMAQI
5th Aug 2025682 AMAQI
5th Aug 2025663 AMAQI
5th Aug 2025724 AMAQI

23°C19/27°C

5th Aug 2025735 AMAQI
5th Aug 2025756 AMAQI
5th Aug 2025807 AMAQI
5th Aug 2025848 AMAQI
5th Aug 2025909 AMAQI
5th Aug 20259710 AMAQI
5th Aug 20259611 AMAQI
5th Aug 20259112 PMAQI
5th Aug 2025871 PMAQI
5th Aug 2025842 PMAQI
5th Aug 2025823 PMAQI
5th Aug 2025864 PMAQI
5th Aug 2025865 PMAQI
5th Aug 2025906 PMAQI
5th Aug 2025817 PMAQI
5th Aug 2025948 PMAQI
5th Aug 2025949 PMAQI
5th Aug 202510110 PMAQI
5th Aug 20259911 PMAQI
6th Aug 20259912 AMAQI
6th Aug 20251001 AMAQI
6th Aug 20251022 AMAQI
6th Aug 2025983 AMAQI
6th Aug 20251004 AMAQI

23°C19/28°C

6th Aug 2025985 AMAQI
6th Aug 2025946 AMAQI
6th Aug 2025927 AMAQI
6th Aug 2025958 AMAQI
6th Aug 2025929 AMAQI
6th Aug 20259210 AMAQI
6th Aug 20258811 AMAQI
6th Aug 20259012 PMAQI
6th Aug 2025871 PMAQI
6th Aug 2025842 PMAQI
6th Aug 2025803 PMAQI
6th Aug 2025814 PMAQI
6th Aug 2025825 PMAQI
6th Aug 2025846 PMAQI
6th Aug 2025987 PMAQI
6th Aug 2025868 PMAQI
6th Aug 2025789 PMAQI
6th Aug 20257810 PMAQI
6th Aug 20257411 PMAQI
7th Aug 20258212 AMAQI
7th Aug 2025831 AMAQI
7th Aug 2025802 AMAQI
7th Aug 2025813 AMAQI
7th Aug 2025824 AMAQI

26°C20/33°C

7th Aug 2025785 AMAQI
7th Aug 2025766 AMAQI
7th Aug 2025787 AMAQI
7th Aug 2025758 AMAQI
7th Aug 2025759 AMAQI
7th Aug 20257910 AMAQI
7th Aug 20256611 AMAQI
7th Aug 20256012 PMAQI
7th Aug 2025551 PMAQI
7th Aug 2025562 PMAQI
7th Aug 2025613 PMAQI
7th Aug 2025614 PMAQI
7th Aug 2025615 PMAQI
7th Aug 2025616 PMAQI
7th Aug 2025627 PMAQI
7th Aug 2025628 PMAQI
7th Aug 2025609 PMAQI
7th Aug 20255910 PMAQI
7th Aug 20256111 PMAQI
8th Aug 20256012 AMAQI
8th Aug 2025531 AMAQI
8th Aug 2025372 AMAQI
8th Aug 2025343 AMAQI
8th Aug 2025364 AMAQI

27°C21/32°C

8th Aug 2025345 AMAQI
8th Aug 2025376 AMAQI
8th Aug 2025447 AMAQI
8th Aug 2025438 AMAQI
8th Aug 2025429 AMAQI
8th Aug 20254210 AMAQI
8th Aug 20254411 AMAQI
8th Aug 20254212 PMAQI
8th Aug 2025431 PMAQI
8th Aug 2025462 PMAQI
8th Aug 2025463 PMAQI
8th Aug 2025484 PMAQI
8th Aug 2025475 PMAQI
8th Aug 2025466 PMAQI
8th Aug 2025457 PMAQI
8th Aug 2025478 PMAQI
8th Aug 2025499 PMAQI
8th Aug 20254810 PMAQI
8th Aug 20254611 PMAQI
9th Aug 20254712 AMAQI
9th Aug 2025421 AMAQI
9th Aug 2025332 AMAQI
9th Aug 2025343 AMAQI
9th Aug 2025324 AMAQI

29°C22/36°C

9th Aug 2025305 AMAQI
9th Aug 2025346 AMAQI
9th Aug 2025397 AMAQI
9th Aug 2025408 AMAQI
9th Aug 2025399 AMAQI
9th Aug 20253810 AMAQI
9th Aug 20253711 AMAQI
9th Aug 20253612 PMAQI
9th Aug 2025351 PMAQI
9th Aug 2025362 PMAQI
9th Aug 2025393 PMAQI
9th Aug 2025404 PMAQI
9th Aug 2025405 PMAQI
9th Aug 2025426 PMAQI
9th Aug 2025417 PMAQI
9th Aug 2025398 PMAQI
9th Aug 2025419 PMAQI
9th Aug 20253810 PMAQI
9th Aug 20254011 PMAQI
10th Aug 20253812 AMAQI
10th Aug 2025361 AMAQI
10th Aug 2025282 AMAQI
10th Aug 2025273 AMAQI
10th Aug 2025294 AMAQI

29°C22/37°C

10th Aug 2025285 AMAQI
10th Aug 2025306 AMAQI
10th Aug 2025297 AMAQI
10th Aug 2025308 AMAQI
10th Aug 2025309 AMAQI
10th Aug 20253010 AMAQI
10th Aug 20252911 AMAQI
10th Aug 20253012 PMAQI
10th Aug 2025301 PMAQI
10th Aug 2025342 PMAQI
10th Aug 2025353 PMAQI
10th Aug 2025324 PMAQI
10th Aug 2025335 PMAQI
10th Aug 2025316 PMAQI
10th Aug 2025337 PMAQI
10th Aug 2025348 PMAQI
10th Aug 2025349 PMAQI
10th Aug 20253410 PMAQI
10th Aug 20253311 PMAQI
11th Aug 20253312 AMAQI
11th Aug 2025361 AMAQI
11th Aug 2025322 AMAQI
11th Aug 2025343 AMAQI
11th Aug 2025324 AMAQI

29°C24/36°C

11th Aug 2025335 AMAQI
11th Aug 2025326 AMAQI
11th Aug 2025347 AMAQI
11th Aug 2025338 AMAQI
11th Aug 2025329 AMAQI
11th Aug 20253810 AMAQI
11th Aug 20253311 AMAQI
11th Aug 20253312 PMAQI
11th Aug 2025331 PMAQI
11th Aug 2025382 PMAQI
11th Aug 2025373 PMAQI
11th Aug 2025294 PMAQI
11th Aug 2025295 PMAQI
11th Aug 2025276 PMAQI
11th Aug 2025317 PMAQI
11th Aug 2025308 PMAQI
11th Aug 2025319 PMAQI
11th Aug 20253210 PMAQI
11th Aug 20253011 PMAQI
12th Aug 20253212 AMAQI
12th Aug 2025321 AMAQI
12th Aug 2025312 AMAQI
12th Aug 2025313 AMAQI
12th Aug 2025334 AMAQI

25°C23/30°C

12th Aug 2025335 AMAQI
12th Aug 2025326 AMAQI
12th Aug 2025367 AMAQI
12th Aug 2025328 AMAQI
12th Aug 2025329 AMAQI
12th Aug 20252910 AMAQI
12th Aug 20253011 AMAQI
12th Aug 20253312 PMAQI
12th Aug 2025341 PMAQI
12th Aug 2025442 PMAQI
12th Aug 2025423 PMAQI
12th Aug 2025294 PMAQI
12th Aug 2025285 PMAQI
12th Aug 2025266 PMAQI
12th Aug 2025317 PMAQI
12th Aug 2025268 PMAQI
12th Aug 2025229 PMAQI
12th Aug 20252210 PMAQI
12th Aug 20252411 PMAQI
13th Aug 20252212 AMAQI
13th Aug 2025221 AMAQI
13th Aug 2025232 AMAQI
13th Aug 2025233 AMAQI
13th Aug 2025264 AMAQI

28°C23/36°C

13th Aug 2025245 AMAQI
13th Aug 2025246 AMAQI
13th Aug 2025257 AMAQI
13th Aug 2025288 AMAQI
13th Aug 2025329 AMAQI
13th Aug 20253210 AMAQI
13th Aug 20253911 AMAQI
13th Aug 20254812 PMAQI
13th Aug 2025551 PMAQI
13th Aug 2025592 PMAQI
13th Aug 2025623 PMAQI
13th Aug 2025624 PMAQI
13th Aug 2025625 PMAQI
13th Aug 2025626 PMAQI
13th Aug 2025317 PMAQI
13th Aug 2025438 PMAQI
13th Aug 2025589 PMAQI
13th Aug 20255710 PMAQI
13th Aug 20255711 PMAQI
14th Aug 20255612 AMAQI
14th Aug 2025551 AMAQI
14th Aug 2025542 AMAQI
14th Aug 2025553 AMAQI
14th Aug 2025564 AMAQI

26°C21/31°C

14th Aug 2025555 AMAQI
5 AM
14th Aug 2025576 AMAQI
14th Aug 2025597 AMAQI
14th Aug 2025628 AMAQI
12 PM
8 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 8 PM

51AQI

16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM

51AQI

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. 51), while the lowest AQI was between 5 AM to 8 PM (Avg. 51).
Night time
Avg. Highest Time
12 AM - 11 PM

52AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM

52AQI

8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 52), while the lowest AQI was between 12 AM to 11 PM (Avg. 52).

2025 Days Vs Air Quality

Ashburn, Chicago, Illinois, United States

2025

74%

104

26%

36

Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)

Good
104 Days
Moderate
36 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 74%

Health Risk Level:

Low

In 2025, 74% of 226 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

Ashburn, Chicago, 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
44AQI
2nd March 2025
37AQI
3rd March 2025
32AQI
4th March 2025
28AQI
5th March 2025
18AQI
1st April 2025
19AQI
2nd April 2025
33AQI
3rd April 2025
23AQI
4th April 2025
26AQI
5th April 2025
21AQI
6th April 2025
20AQI
7th April 2025
22AQI
8th April 2025
17AQI
9th April 2025
29AQI
10th April 2025
46AQI
11th April 2025
40AQI
12th April 2025
52AQI
13th April 2025
35AQI
14th April 2025
29AQI
15th April 2025
20AQI
16th April 2025
23AQI
17th April 2025
30AQI
18th April 2025
47AQI
19th April 2025
37AQI
20th April 2025
38AQI
21st April 2025
20AQI
22nd April 2025
29AQI
23rd April 2025
28AQI
24th April 2025
47AQI
25th April 2025
27AQI
26th April 2025
18AQI
27th April 2025
25AQI
28th April 2025
31AQI
29th April 2025
30AQI
30th April 2025
20AQI
1st May 2025
26AQI
2nd May 2025
26AQI
3rd May 2025
16AQI
4th May 2025
16AQI
5th May 2025
21AQI
6th May 2025
34AQI
7th May 2025
38AQI
8th May 2025
18AQI
9th May 2025
22AQI
10th May 2025
30AQI
11th May 2025
22AQI
12th May 2025
35AQI
13th May 2025
30AQI
14th May 2025
32AQI
15th May 2025
43AQI
16th May 2025
33AQI
17th May 2025
22AQI
18th May 2025
22AQI
19th May 2025
18AQI
20th May 2025
21AQI
21st May 2025
18AQI
22nd May 2025
15AQI
23rd May 2025
21AQI
24th May 2025
17AQI
25th May 2025
14AQI
26th May 2025
20AQI
27th May 2025
24AQI
28th May 2025
31AQI
29th May 2025
38AQI
30th May 2025
45AQI
31st May 2025
37AQI
1st June 2025
36AQI
2nd June 2025
37AQI
3rd June 2025
54AQI
4th June 2025
53AQI
5th June 2025
100AQI
6th June 2025
84AQI
7th June 2025
76AQI
8th June 2025
71AQI
9th June 2025
66AQI
10th June 2025
59AQI
11th June 2025
68AQI
12th June 2025
74AQI
13th June 2025
74AQI
14th June 2025
63AQI
15th June 2025
48AQI
16th June 2025
53AQI
17th June 2025
44AQI
18th June 2025
31AQI
19th June 2025
27AQI
20th June 2025
39AQI
21st June 2025
35AQI
22nd June 2025
39AQI
23rd June 2025
54AQI
24th June 2025
45AQI
25th June 2025
30AQI
26th June 2025
38AQI
27th June 2025
32AQI
28th June 2025
20AQI
29th June 2025
30AQI
30th June 2025
28AQI
1st July 2025
31AQI
2nd July 2025
51AQI
3rd July 2025
51AQI
4th July 2025
54AQI
5th July 2025
67AQI
6th July 2025
51AQI
7th July 2025
50AQI
8th July 2025
65AQI
9th July 2025
47AQI
10th July 2025
40AQI
11th July 2025
39AQI
12th July 2025
28AQI
13th July 2025
56AQI
14th July 2025
73AQI
15th July 2025
74AQI
16th July 2025
42AQI
17th July 2025
30AQI
18th July 2025
30AQI
19th July 2025
32AQI
20th July 2025
26AQI
21st July 2025
69AQI
22nd July 2025
80AQI
23rd July 2025
61AQI
24th July 2025
53AQI
25th July 2025
31AQI
26th July 2025
30AQI
27th July 2025
29AQI
28th July 2025
35AQI
29th July 2025
38AQI
30th July 2025
39AQI
31st July 2025
82AQI
1st August 2025
79AQI
2nd August 2025
61AQI
3rd August 2025
67AQI
4th August 2025
82AQI
5th August 2025
83AQI
6th August 2025
90AQI
7th August 2025
69AQI
8th August 2025
44AQI
9th August 2025
38AQI
10th August 2025
31AQI
11th August 2025
32AQI
12th August 2025
30AQI
13th August 2025
37AQI

32AQI

29AQI

26AQI

50AQI

48AQI

57AQI

No. of days

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

202540AQI

5
29
1
31
16
14
17
14
6
7
104
36

Highest AQI recorded in

August

57AQI

Lowest AQI recorded in

May

26AQI

Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
40AQI
Least Polluted Year Recorded
2025(Avg.)
40AQI

Ashburn's annual 2025 AQI (40) shows an average percentage change of NaN% (improved AQI) compared to previous years: .