Waterloo, Iowa, 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
Waterloo, Iowa, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
101AQILowest AQI recorded on
1st Aug 2022
13AQISame Day Analysis (9th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 46 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Waterloo, Iowa, United States
AQI
Day
Night
.
5 AM10th Aug 2025
8 PM
4 AM11th Aug 2025
Day time
Avg. Highest Time
6AM10th Aug
50AQI
Avg. Lowest Time
12PM10th Aug
37AQI
Night time
Avg. Highest Time
5AM10th Aug
57AQI
Avg. Lowest Time
1AM11th Aug
38AQI
In the last 24 hours,
Waterloo's AQI reached its highest point of 57 at 5 AM during the Night, while the lowest point, 37, was recorded at 12 PM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Waterloo, Iowa, 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 2025355 AMAQI
12th Jul 2025406 AMAQI
12th Jul 2025397 AMAQI
12th Jul 2025448 AMAQI
12th Jul 2025509 AMAQI
12th Jul 20256110 AMAQI
12th Jul 20255911 AMAQI
12th Jul 20255412 PMAQI
12th Jul 2025631 PMAQI
12th Jul 2025542 PMAQI
12th Jul 2025533 PMAQI
12th Jul 2025554 PMAQI
12th Jul 2025475 PMAQI
12th Jul 2025476 PMAQI
12th Jul 2025437 PMAQI
12th Jul 2025468 PMAQI
12th Jul 2025509 PMAQI
12th Jul 20255010 PMAQI
12th Jul 20255111 PMAQI
13th Jul 20255212 AMAQI
13th Jul 2025521 AMAQI
13th Jul 2025512 AMAQI
13th Jul 2025473 AMAQI
13th Jul 2025494 AMAQI
23°C19/29°C
13th Jul 2025485 AMAQI
13th Jul 2025546 AMAQI
13th Jul 2025527 AMAQI
13th Jul 2025538 AMAQI
13th Jul 2025539 AMAQI
13th Jul 20255410 AMAQI
13th Jul 20255311 AMAQI
13th Jul 20255612 PMAQI
13th Jul 2025581 PMAQI
13th Jul 2025542 PMAQI
13th Jul 2025533 PMAQI
13th Jul 2025554 PMAQI
13th Jul 2025575 PMAQI
13th Jul 2025576 PMAQI
13th Jul 2025577 PMAQI
13th Jul 2025568 PMAQI
13th Jul 2025569 PMAQI
13th Jul 20255610 PMAQI
13th Jul 20255711 PMAQI
14th Jul 20255812 AMAQI
14th Jul 2025581 AMAQI
14th Jul 2025592 AMAQI
14th Jul 2025613 AMAQI
14th Jul 2025624 AMAQI
22°C14/29°C
14th Jul 2025635 AMAQI
14th Jul 2025616 AMAQI
14th Jul 2025607 AMAQI
14th Jul 2025608 AMAQI
14th Jul 2025639 AMAQI
14th Jul 20256410 AMAQI
14th Jul 20256111 AMAQI
14th Jul 20256012 PMAQI
14th Jul 2025621 PMAQI
14th Jul 2025632 PMAQI
14th Jul 2025643 PMAQI
14th Jul 2025644 PMAQI
14th Jul 2025655 PMAQI
14th Jul 2025656 PMAQI
14th Jul 2025627 PMAQI
14th Jul 2025628 PMAQI
14th Jul 2025629 PMAQI
14th Jul 20256010 PMAQI
14th Jul 20255911 PMAQI
15th Jul 20255912 AMAQI
15th Jul 2025591 AMAQI
15th Jul 2025612 AMAQI
15th Jul 2025613 AMAQI
15th Jul 2025624 AMAQI
24°C14/32°C
15th Jul 2025655 AMAQI
15th Jul 2025706 AMAQI
15th Jul 2025717 AMAQI
15th Jul 2025688 AMAQI
15th Jul 2025679 AMAQI
15th Jul 20256510 AMAQI
15th Jul 20256411 AMAQI
15th Jul 20256012 PMAQI
15th Jul 2025581 PMAQI
15th Jul 2025602 PMAQI
15th Jul 2025613 PMAQI
15th Jul 2025594 PMAQI
15th Jul 2025595 PMAQI
15th Jul 2025596 PMAQI
15th Jul 2025617 PMAQI
15th Jul 2025618 PMAQI
15th Jul 2025599 PMAQI
15th Jul 20255910 PMAQI
15th Jul 20255911 PMAQI
16th Jul 20255912 AMAQI
16th Jul 2025581 AMAQI
16th Jul 2025592 AMAQI
16th Jul 2025423 AMAQI
16th Jul 2025414 AMAQI
25°C17/32°C
16th Jul 2025435 AMAQI
16th Jul 2025446 AMAQI
16th Jul 2025477 AMAQI
16th Jul 2025498 AMAQI
16th Jul 2025479 AMAQI
16th Jul 20254610 AMAQI
16th Jul 20254411 AMAQI
16th Jul 20254212 PMAQI
16th Jul 2025411 PMAQI
16th Jul 2025412 PMAQI
16th Jul 2025463 PMAQI
16th Jul 2025414 PMAQI
16th Jul 2025435 PMAQI
16th Jul 2025426 PMAQI
16th Jul 2025447 PMAQI
16th Jul 2025448 PMAQI
16th Jul 2025419 PMAQI
16th Jul 20254110 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20254012 AMAQI
17th Jul 2025421 AMAQI
17th Jul 2025352 AMAQI
17th Jul 2025293 AMAQI
17th Jul 2025304 AMAQI
23°C18/30°C
17th Jul 2025285 AMAQI
17th Jul 2025276 AMAQI
17th Jul 2025247 AMAQI
17th Jul 2025258 AMAQI
17th Jul 2025259 AMAQI
17th Jul 20252510 AMAQI
17th Jul 20252511 AMAQI
17th Jul 20252912 PMAQI
17th Jul 2025311 PMAQI
17th Jul 2025282 PMAQI
17th Jul 2025243 PMAQI
17th Jul 2025254 PMAQI
17th Jul 2025285 PMAQI
17th Jul 2025276 PMAQI
17th Jul 2025267 PMAQI
17th Jul 2025268 PMAQI
17th Jul 2025269 PMAQI
17th Jul 20252910 PMAQI
17th Jul 20253111 PMAQI
18th Jul 20253212 AMAQI
18th Jul 2025311 AMAQI
18th Jul 2025272 AMAQI
18th Jul 2025213 AMAQI
18th Jul 2025184 AMAQI
18°C14/23°C
18th Jul 2025215 AMAQI
18th Jul 2025246 AMAQI
18th Jul 2025217 AMAQI
18th Jul 2025258 AMAQI
18th Jul 2025239 AMAQI
18th Jul 20252310 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252412 PMAQI
18th Jul 2025241 PMAQI
18th Jul 2025242 PMAQI
18th Jul 2025263 PMAQI
18th Jul 2025274 PMAQI
18th Jul 2025265 PMAQI
18th Jul 2025266 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025268 PMAQI
18th Jul 2025269 PMAQI
18th Jul 20252510 PMAQI
18th Jul 20252511 PMAQI
19th Jul 20252512 AMAQI
19th Jul 2025271 AMAQI
19th Jul 2025302 AMAQI
19th Jul 2025343 AMAQI
19th Jul 2025364 AMAQI
19°C9/26°C
19th Jul 2025335 AMAQI
19th Jul 2025326 AMAQI
19th Jul 2025287 AMAQI
19th Jul 2025258 AMAQI
19th Jul 2025249 AMAQI
19th Jul 20252410 AMAQI
19th Jul 20252311 AMAQI
19th Jul 20252212 PMAQI
19th Jul 2025211 PMAQI
19th Jul 2025212 PMAQI
19th Jul 2025243 PMAQI
19th Jul 2025234 PMAQI
19th Jul 2025245 PMAQI
19th Jul 2025246 PMAQI
19th Jul 2025247 PMAQI
19th Jul 2025238 PMAQI
19th Jul 2025249 PMAQI
19th Jul 20252510 PMAQI
19th Jul 20252311 PMAQI
20th Jul 20252212 AMAQI
20th Jul 2025201 AMAQI
20th Jul 2025202 AMAQI
20th Jul 2025183 AMAQI
20th Jul 2025204 AMAQI
24°C21/29°C
20th Jul 2025225 AMAQI
20th Jul 2025196 AMAQI
20th Jul 2025217 AMAQI
20th Jul 2025218 AMAQI
20th Jul 2025199 AMAQI
20th Jul 20251710 AMAQI
20th Jul 20251711 AMAQI
20th Jul 20251812 PMAQI
20th Jul 2025171 PMAQI
20th Jul 2025202 PMAQI
20th Jul 2025203 PMAQI
20th Jul 2025224 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025226 PMAQI
20th Jul 2025207 PMAQI
20th Jul 2025208 PMAQI
20th Jul 2025229 PMAQI
20th Jul 20252310 PMAQI
20th Jul 20252611 PMAQI
21st Jul 20252812 AMAQI
21st Jul 2025301 AMAQI
21st Jul 2025392 AMAQI
21st Jul 2025403 AMAQI
21st Jul 2025434 AMAQI
22°C18/28°C
21st Jul 2025505 AMAQI
21st Jul 2025546 AMAQI
21st Jul 2025527 AMAQI
21st Jul 2025538 AMAQI
21st Jul 2025569 AMAQI
21st Jul 20255810 AMAQI
21st Jul 20255611 AMAQI
21st Jul 20255012 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025512 PMAQI
21st Jul 2025503 PMAQI
21st Jul 2025504 PMAQI
21st Jul 2025535 PMAQI
21st Jul 2025526 PMAQI
21st Jul 2025487 PMAQI
21st Jul 2025488 PMAQI
21st Jul 2025539 PMAQI
21st Jul 20255310 PMAQI
21st Jul 20255011 PMAQI
22nd Jul 20254812 AMAQI
22nd Jul 2025471 AMAQI
22nd Jul 2025442 AMAQI
22nd Jul 2025423 AMAQI
22nd Jul 2025404 AMAQI
22°C20/25°C
22nd Jul 2025385 AMAQI
22nd Jul 2025406 AMAQI
22nd Jul 2025327 AMAQI
22nd Jul 2025318 AMAQI
22nd Jul 2025289 AMAQI
22nd Jul 20253010 AMAQI
22nd Jul 20253711 AMAQI
22nd Jul 20253712 PMAQI
22nd Jul 2025401 PMAQI
22nd Jul 2025422 PMAQI
22nd Jul 2025453 PMAQI
22nd Jul 2025434 PMAQI
22nd Jul 2025425 PMAQI
22nd Jul 2025436 PMAQI
22nd Jul 2025437 PMAQI
22nd Jul 2025438 PMAQI
22nd Jul 2025419 PMAQI
22nd Jul 20254110 PMAQI
22nd Jul 20254111 PMAQI
23rd Jul 20254212 AMAQI
23rd Jul 2025431 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025273 AMAQI
23rd Jul 2025244 AMAQI
27°C21/34°C
23rd Jul 2025245 AMAQI
23rd Jul 2025326 AMAQI
23rd Jul 2025347 AMAQI
23rd Jul 2025338 AMAQI
23rd Jul 2025349 AMAQI
23rd Jul 20254010 AMAQI
23rd Jul 20254111 AMAQI
23rd Jul 20254112 PMAQI
23rd Jul 2025411 PMAQI
23rd Jul 2025392 PMAQI
23rd Jul 2025393 PMAQI
23rd Jul 2025384 PMAQI
23rd Jul 2025375 PMAQI
23rd Jul 2025376 PMAQI
23rd Jul 2025367 PMAQI
23rd Jul 2025388 PMAQI
23rd Jul 2025399 PMAQI
23rd Jul 20254010 PMAQI
23rd Jul 20253811 PMAQI
24th Jul 20253812 AMAQI
24th Jul 2025371 AMAQI
24th Jul 2025322 AMAQI
24th Jul 2025273 AMAQI
24th Jul 2025224 AMAQI
29°C24/35°C
24th Jul 2025225 AMAQI
24th Jul 2025226 AMAQI
24th Jul 2025227 AMAQI
24th Jul 2025248 AMAQI
24th Jul 2025229 AMAQI
24th Jul 20252410 AMAQI
24th Jul 20252611 AMAQI
24th Jul 20252812 PMAQI
24th Jul 2025301 PMAQI
24th Jul 2025322 PMAQI
24th Jul 2025323 PMAQI
24th Jul 2025324 PMAQI
24th Jul 2025345 PMAQI
24th Jul 2025306 PMAQI
24th Jul 2025307 PMAQI
24th Jul 2025298 PMAQI
24th Jul 2025269 PMAQI
24th Jul 20252810 PMAQI
24th Jul 20252911 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025261 AMAQI
25th Jul 2025232 AMAQI
25th Jul 2025213 AMAQI
25th Jul 2025214 AMAQI
26°C21/29°C
25th Jul 2025235 AMAQI
25th Jul 2025226 AMAQI
25th Jul 2025247 AMAQI
25th Jul 2025258 AMAQI
25th Jul 2025239 AMAQI
25th Jul 20252210 AMAQI
25th Jul 20252211 AMAQI
25th Jul 20252312 PMAQI
25th Jul 2025261 PMAQI
25th Jul 2025242 PMAQI
25th Jul 2025293 PMAQI
25th Jul 2025294 PMAQI
25th Jul 2025295 PMAQI
25th Jul 2025366 PMAQI
25th Jul 2025287 PMAQI
25th Jul 2025298 PMAQI
25th Jul 2025289 PMAQI
25th Jul 20252810 PMAQI
25th Jul 20253011 PMAQI
26th Jul 20252612 AMAQI
26th Jul 2025281 AMAQI
26th Jul 2025472 AMAQI
26th Jul 2025373 AMAQI
26th Jul 2025394 AMAQI
25°C20/31°C
26th Jul 2025375 AMAQI
26th Jul 2025406 AMAQI
26th Jul 2025457 AMAQI
26th Jul 2025448 AMAQI
26th Jul 2025449 AMAQI
26th Jul 20254410 AMAQI
26th Jul 20254311 AMAQI
26th Jul 20254112 PMAQI
26th Jul 2025371 PMAQI
26th Jul 2025412 PMAQI
26th Jul 2025443 PMAQI
26th Jul 2025414 PMAQI
26th Jul 2025405 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025417 PMAQI
26th Jul 2025448 PMAQI
26th Jul 2025429 PMAQI
26th Jul 20254010 PMAQI
26th Jul 20253711 PMAQI
27th Jul 20253812 AMAQI
27th Jul 2025361 AMAQI
27th Jul 2025282 AMAQI
27th Jul 2025303 AMAQI
27th Jul 2025254 AMAQI
25°C20/31°C
27th Jul 2025255 AMAQI
27th Jul 2025246 AMAQI
27th Jul 2025257 AMAQI
27th Jul 2025258 AMAQI
27th Jul 2025269 AMAQI
27th Jul 20252610 AMAQI
27th Jul 20252611 AMAQI
27th Jul 20252712 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025282 PMAQI
27th Jul 2025293 PMAQI
27th Jul 2025324 PMAQI
27th Jul 2025295 PMAQI
27th Jul 2025296 PMAQI
27th Jul 2025277 PMAQI
27th Jul 2025288 PMAQI
27th Jul 2025299 PMAQI
27th Jul 20253010 PMAQI
27th Jul 20253311 PMAQI
28th Jul 20253412 AMAQI
28th Jul 2025321 AMAQI
28th Jul 2025312 AMAQI
28th Jul 2025343 AMAQI
28th Jul 2025334 AMAQI
26°C20/33°C
28th Jul 2025315 AMAQI
28th Jul 2025306 AMAQI
28th Jul 2025317 AMAQI
28th Jul 2025308 AMAQI
28th Jul 2025309 AMAQI
28th Jul 20252910 AMAQI
28th Jul 20253011 AMAQI
28th Jul 20253112 PMAQI
28th Jul 2025311 PMAQI
28th Jul 2025312 PMAQI
28th Jul 2025333 PMAQI
28th Jul 2025334 PMAQI
28th Jul 2025325 PMAQI
28th Jul 2025336 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025338 PMAQI
28th Jul 2025359 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253411 PMAQI
29th Jul 20253712 AMAQI
29th Jul 2025371 AMAQI
29th Jul 2025382 AMAQI
29th Jul 2025363 AMAQI
29th Jul 2025364 AMAQI
27°C19/33°C
29th Jul 2025375 AMAQI
29th Jul 2025416 AMAQI
29th Jul 2025407 AMAQI
29th Jul 2025408 AMAQI
29th Jul 2025409 AMAQI
29th Jul 20254010 AMAQI
29th Jul 20254111 AMAQI
29th Jul 20254012 PMAQI
29th Jul 2025401 PMAQI
29th Jul 2025392 PMAQI
29th Jul 2025403 PMAQI
29th Jul 2025404 PMAQI
29th Jul 2025415 PMAQI
29th Jul 2025406 PMAQI
29th Jul 2025397 PMAQI
29th Jul 2025398 PMAQI
29th Jul 2025409 PMAQI
29th Jul 20253910 PMAQI
29th Jul 20253811 PMAQI
30th Jul 20254012 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025432 AMAQI
30th Jul 2025413 AMAQI
30th Jul 2025404 AMAQI
28°C20/35°C
30th Jul 2025425 AMAQI
30th Jul 2025416 AMAQI
30th Jul 2025427 AMAQI
30th Jul 2025438 AMAQI
30th Jul 2025459 AMAQI
30th Jul 20254610 AMAQI
30th Jul 20255011 AMAQI
30th Jul 20255412 PMAQI
30th Jul 2025541 PMAQI
30th Jul 2025432 PMAQI
30th Jul 2025433 PMAQI
30th Jul 2025464 PMAQI
30th Jul 2025455 PMAQI
30th Jul 2025436 PMAQI
30th Jul 2025457 PMAQI
30th Jul 2025458 PMAQI
30th Jul 2025539 PMAQI
30th Jul 20255610 PMAQI
30th Jul 20255311 PMAQI
31st Jul 20255412 AMAQI
31st Jul 2025601 AMAQI
31st Jul 2025812 AMAQI
31st Jul 2025923 AMAQI
31st Jul 20251104 AMAQI
21°C19/22°C
31st Jul 2025995 AMAQI
31st Jul 2025826 AMAQI
31st Jul 2025907 AMAQI
31st Jul 20251208 AMAQI
31st Jul 20251159 AMAQI
31st Jul 202512810 AMAQI
31st Jul 20259911 AMAQI
31st Jul 202511112 PMAQI
31st Jul 20251441 PMAQI
31st Jul 20251472 PMAQI
31st Jul 20251273 PMAQI
31st Jul 20251254 PMAQI
31st Jul 20251135 PMAQI
31st Jul 20251116 PMAQI
31st Jul 2025987 PMAQI
31st Jul 20251088 PMAQI
31st Jul 20251249 PMAQI
31st Jul 202510410 PMAQI
31st Jul 202510311 PMAQI
1st Aug 202510312 AMAQI
1st Aug 20251061 AMAQI
1st Aug 2025912 AMAQI
1st Aug 2025963 AMAQI
1st Aug 2025944 AMAQI
20°C15/27°C
1st Aug 2025965 AMAQI
1st Aug 2025886 AMAQI
1st Aug 2025807 AMAQI
1st Aug 2025818 AMAQI
1st Aug 2025849 AMAQI
1st Aug 20258110 AMAQI
1st Aug 20257011 AMAQI
1st Aug 20257112 PMAQI
1st Aug 2025781 PMAQI
1st Aug 2025852 PMAQI
1st Aug 2025833 PMAQI
1st Aug 2025784 PMAQI
1st Aug 2025785 PMAQI
1st Aug 2025766 PMAQI
1st Aug 2025887 PMAQI
1st Aug 2025868 PMAQI
1st Aug 2025819 PMAQI
1st Aug 20257710 PMAQI
1st Aug 20257611 PMAQI
2nd Aug 20258212 AMAQI
2nd Aug 2025731 AMAQI
2nd Aug 2025742 AMAQI
2nd Aug 2025773 AMAQI
2nd Aug 2025754 AMAQI
19°C11/26°C
2nd Aug 2025775 AMAQI
2nd Aug 2025746 AMAQI
2nd Aug 2025747 AMAQI
2nd Aug 2025778 AMAQI
2nd Aug 2025789 AMAQI
2nd Aug 20257910 AMAQI
2nd Aug 20258211 AMAQI
2nd Aug 20257912 PMAQI
2nd Aug 2025741 PMAQI
2nd Aug 2025752 PMAQI
2nd Aug 2025743 PMAQI
2nd Aug 2025774 PMAQI
2nd Aug 2025775 PMAQI
2nd Aug 2025796 PMAQI
2nd Aug 2025877 PMAQI
2nd Aug 2025898 PMAQI
2nd Aug 2025759 PMAQI
2nd Aug 20258210 PMAQI
2nd Aug 20259711 PMAQI
3rd Aug 20259712 AMAQI
3rd Aug 2025971 AMAQI
3rd Aug 20251022 AMAQI
3rd Aug 20251043 AMAQI
3rd Aug 2025974 AMAQI
20°C14/26°C
3rd Aug 2025955 AMAQI
3rd Aug 2025896 AMAQI
3rd Aug 2025977 AMAQI
3rd Aug 2025948 AMAQI
3rd Aug 2025919 AMAQI
3rd Aug 20258410 AMAQI
3rd Aug 20258111 AMAQI
3rd Aug 20258512 PMAQI
3rd Aug 2025911 PMAQI
3rd Aug 2025902 PMAQI
3rd Aug 2025943 PMAQI
3rd Aug 2025884 PMAQI
3rd Aug 2025955 PMAQI
3rd Aug 2025896 PMAQI
3rd Aug 2025937 PMAQI
3rd Aug 2025848 PMAQI
3rd Aug 2025889 PMAQI
3rd Aug 20259710 PMAQI
3rd Aug 20259611 PMAQI
4th Aug 20259712 AMAQI
4th Aug 2025991 AMAQI
4th Aug 2025942 AMAQI
4th Aug 2025983 AMAQI
4th Aug 20251004 AMAQI
19°C10/25°C
4th Aug 20251025 AMAQI
4th Aug 2025996 AMAQI
4th Aug 20251067 AMAQI
4th Aug 20251018 AMAQI
4th Aug 20251029 AMAQI
4th Aug 202510810 AMAQI
4th Aug 202511411 AMAQI
4th Aug 202510812 PMAQI
4th Aug 20251001 PMAQI
4th Aug 2025912 PMAQI
4th Aug 2025893 PMAQI
4th Aug 2025864 PMAQI
4th Aug 2025835 PMAQI
4th Aug 2025806 PMAQI
4th Aug 2025927 PMAQI
4th Aug 2025798 PMAQI
4th Aug 2025869 PMAQI
4th Aug 20257710 PMAQI
4th Aug 20257411 PMAQI
5th Aug 20257212 AMAQI
5th Aug 2025751 AMAQI
5th Aug 2025822 AMAQI
5th Aug 2025843 AMAQI
5th Aug 2025824 AMAQI
21°C12/26°C
5th Aug 2025815 AMAQI
5th Aug 2025776 AMAQI
5th Aug 2025787 AMAQI
5th Aug 2025808 AMAQI
5th Aug 2025789 AMAQI
5th Aug 20258010 AMAQI
5th Aug 20257711 AMAQI
5th Aug 20257312 PMAQI
5th Aug 2025701 PMAQI
5th Aug 2025672 PMAQI
5th Aug 2025663 PMAQI
5th Aug 2025694 PMAQI
5th Aug 2025665 PMAQI
5th Aug 2025676 PMAQI
5th Aug 2025747 PMAQI
5th Aug 2025718 PMAQI
5th Aug 2025739 PMAQI
5th Aug 20257410 PMAQI
5th Aug 20257211 PMAQI
6th Aug 20257212 AMAQI
6th Aug 2025771 AMAQI
6th Aug 2025802 AMAQI
6th Aug 2025783 AMAQI
6th Aug 2025774 AMAQI
22°C14/30°C
6th Aug 2025735 AMAQI
6th Aug 2025736 AMAQI
6th Aug 2025737 AMAQI
6th Aug 2025758 AMAQI
6th Aug 2025789 AMAQI
6th Aug 20257410 AMAQI
6th Aug 20257011 AMAQI
6th Aug 20256812 PMAQI
6th Aug 2025631 PMAQI
6th Aug 2025602 PMAQI
6th Aug 2025603 PMAQI
6th Aug 2025604 PMAQI
6th Aug 2025625 PMAQI
6th Aug 2025636 PMAQI
6th Aug 2025677 PMAQI
6th Aug 2025608 PMAQI
6th Aug 2025589 PMAQI
6th Aug 20255710 PMAQI
6th Aug 20256111 PMAQI
7th Aug 20256512 AMAQI
7th Aug 2025651 AMAQI
7th Aug 2025662 AMAQI
7th Aug 2025673 AMAQI
7th Aug 2025674 AMAQI
21°C15/27°C
7th Aug 2025685 AMAQI
7th Aug 2025686 AMAQI
7th Aug 2025667 AMAQI
7th Aug 2025678 AMAQI
7th Aug 2025669 AMAQI
7th Aug 20256510 AMAQI
7th Aug 20256511 AMAQI
7th Aug 20256412 PMAQI
7th Aug 2025611 PMAQI
7th Aug 2025592 PMAQI
7th Aug 2025613 PMAQI
7th Aug 2025624 PMAQI
7th Aug 2025625 PMAQI
7th Aug 2025636 PMAQI
7th Aug 2025637 PMAQI
7th Aug 2025638 PMAQI
7th Aug 2025639 PMAQI
7th Aug 20256410 PMAQI
7th Aug 20256411 PMAQI
8th Aug 20256212 AMAQI
8th Aug 2025621 AMAQI
8th Aug 2025572 AMAQI
8th Aug 2025543 AMAQI
8th Aug 2025564 AMAQI
22°C18/26°C
8th Aug 2025545 AMAQI
8th Aug 2025546 AMAQI
8th Aug 2025557 AMAQI
8th Aug 2025598 AMAQI
8th Aug 2025579 AMAQI
8th Aug 20256010 AMAQI
8th Aug 20256211 AMAQI
8th Aug 20256312 PMAQI
8th Aug 2025631 PMAQI
8th Aug 2025622 PMAQI
8th Aug 2025593 PMAQI
8th Aug 2025574 PMAQI
8th Aug 2025595 PMAQI
8th Aug 2025576 PMAQI
8th Aug 2025567 PMAQI
8th Aug 2025578 PMAQI
8th Aug 2025609 PMAQI
8th Aug 20256310 PMAQI
8th Aug 20255811 PMAQI
9th Aug 20255912 AMAQI
9th Aug 2025591 AMAQI
9th Aug 2025542 AMAQI
9th Aug 2025463 AMAQI
9th Aug 2025504 AMAQI
28°C20/35°C
9th Aug 2025515 AMAQI
9th Aug 2025486 AMAQI
9th Aug 2025507 AMAQI
9th Aug 2025518 AMAQI
9th Aug 2025509 AMAQI
9th Aug 20255510 AMAQI
9th Aug 20255511 AMAQI
9th Aug 20255512 PMAQI
9th Aug 2025491 PMAQI
9th Aug 2025442 PMAQI
9th Aug 2025463 PMAQI
9th Aug 2025454 PMAQI
9th Aug 2025495 PMAQI
9th Aug 2025486 PMAQI
9th Aug 2025517 PMAQI
9th Aug 2025528 PMAQI
9th Aug 2025509 PMAQI
9th Aug 20255210 PMAQI
9th Aug 20255211 PMAQI
10th Aug 20255312 AMAQI
10th Aug 2025541 AMAQI
10th Aug 2025532 AMAQI
10th Aug 2025463 AMAQI
10th Aug 2025514 AMAQI
25°C20/30°C
10th Aug 2025575 AMAQI
10th Aug 2025506 AMAQI
10th Aug 2025507 AMAQI
10th Aug 2025478 AMAQI
10th Aug 2025429 AMAQI
10th Aug 20253810 AMAQI
10th Aug 20253711 AMAQI
10th Aug 20253712 PMAQI
10th Aug 2025381 PMAQI
10th Aug 2025392 PMAQI
10th Aug 2025423 PMAQI
10th Aug 2025394 PMAQI
10th Aug 2025415 PMAQI
10th Aug 2025396 PMAQI
10th Aug 2025447 PMAQI
10th Aug 2025448 PMAQI
10th Aug 2025399 PMAQI
10th Aug 20253910 PMAQI
10th Aug 20253811 PMAQI
11th Aug 20254012 AMAQI
11th Aug 2025381 AMAQI
11th Aug 2025402 AMAQI
11th Aug 2025413 AMAQI
11th Aug 2025404 AMAQI
23°C21/25°C
11th Aug 2025365 AMAQI
5 AM11th Aug 2025366 AMAQI
11th Aug 2025367 AMAQI
11th Aug 2025388 AMAQI
11th Aug 2025529 AMAQI
11th Aug 20256210 AMAQI
11th Aug 20256211 AMAQI
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
52AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
52AQI
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. 52), while the lowest AQI was between 5 AM to 8 PM (Avg. 52).
Night time
Avg. Highest Time
12 AM - 11 PM
51AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
51AQI
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. 51), while the lowest AQI was between 12 AM to 11 PM (Avg. 51).
2025 Days Vs Air Quality
Waterloo, Iowa, United States
2025
84%
185
15%
34
0.9%
2
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
185 DaysModerate
34 DaysPoor
2 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% 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
Waterloo, Iowa, 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
27AQI
27AQI
2nd January 2025
33AQI
33AQI
3rd January 2025
27AQI
27AQI
4th January 2025
22AQI
22AQI
5th January 2025
21AQI
21AQI
6th January 2025
23AQI
23AQI
7th January 2025
32AQI
32AQI
8th January 2025
36AQI
36AQI
9th January 2025
54AQI
54AQI
10th January 2025
39AQI
39AQI
11th January 2025
30AQI
30AQI
12th January 2025
39AQI
39AQI
13th January 2025
23AQI
23AQI
14th January 2025
32AQI
32AQI
15th January 2025
33AQI
33AQI
16th January 2025
29AQI
29AQI
17th January 2025
30AQI
30AQI
18th January 2025
21AQI
21AQI
19th January 2025
23AQI
23AQI
20th January 2025
26AQI
26AQI
21st January 2025
24AQI
24AQI
22nd January 2025
28AQI
28AQI
23rd January 2025
33AQI
33AQI
24th January 2025
42AQI
42AQI
25th January 2025
33AQI
33AQI
26th January 2025
25AQI
25AQI
27th January 2025
25AQI
25AQI
28th January 2025
29AQI
29AQI
29th January 2025
27AQI
27AQI
30th January 2025
40AQI
40AQI
31st January 2025
40AQI
40AQI
1st February 2025
25AQI
25AQI
2nd February 2025
41AQI
41AQI
3rd February 2025
42AQI
42AQI
4th February 2025
25AQI
25AQI
5th February 2025
29AQI
29AQI
6th February 2025
33AQI
33AQI
7th February 2025
26AQI
26AQI
8th February 2025
32AQI
32AQI
9th February 2025
31AQI
31AQI
10th February 2025
37AQI
37AQI
11th February 2025
35AQI
35AQI
12th February 2025
35AQI
35AQI
13th February 2025
43AQI
43AQI
14th February 2025
43AQI
43AQI
15th February 2025
46AQI
46AQI
16th February 2025
29AQI
29AQI
17th February 2025
29AQI
29AQI
18th February 2025
27AQI
27AQI
19th February 2025
29AQI
29AQI
20th February 2025
31AQI
31AQI
21st February 2025
48AQI
48AQI
22nd February 2025
52AQI
52AQI
23rd February 2025
60AQI
60AQI
24th February 2025
36AQI
36AQI
25th February 2025
27AQI
27AQI
26th February 2025
31AQI
31AQI
27th February 2025
30AQI
30AQI
28th February 2025
25AQI
25AQI
1st March 2025
28AQI
28AQI
2nd March 2025
33AQI
33AQI
3rd March 2025
50AQI
50AQI
4th March 2025
40AQI
40AQI
5th March 2025
26AQI
26AQI
6th March 2025
26AQI
26AQI
7th March 2025
29AQI
29AQI
8th March 2025
28AQI
28AQI
9th March 2025
27AQI
27AQI
10th March 2025
30AQI
30AQI
11th March 2025
29AQI
29AQI
12th March 2025
31AQI
31AQI
13th March 2025
57AQI
57AQI
14th March 2025
51AQI
51AQI
15th March 2025
47AQI
47AQI
16th March 2025
26AQI
26AQI
17th March 2025
26AQI
26AQI
18th March 2025
33AQI
33AQI
19th March 2025
27AQI
27AQI
20th March 2025
27AQI
27AQI
21st March 2025
27AQI
27AQI
22nd March 2025
27AQI
27AQI
23rd March 2025
27AQI
27AQI
24th March 2025
25AQI
25AQI
25th March 2025
29AQI
29AQI
26th March 2025
34AQI
34AQI
27th March 2025
37AQI
37AQI
28th March 2025
46AQI
46AQI
29th March 2025
39AQI
39AQI
30th March 2025
25AQI
25AQI
31st March 2025
24AQI
24AQI
1st April 2025
35AQI
35AQI
2nd April 2025
30AQI
30AQI
3rd April 2025
23AQI
23AQI
4th April 2025
34AQI
34AQI
5th April 2025
35AQI
35AQI
6th April 2025
33AQI
33AQI
7th April 2025
29AQI
29AQI
8th April 2025
28AQI
28AQI
9th April 2025
42AQI
42AQI
10th April 2025
50AQI
50AQI
11th April 2025
54AQI
54AQI
12th April 2025
56AQI
56AQI
13th April 2025
50AQI
50AQI
14th April 2025
32AQI
32AQI
15th April 2025
27AQI
27AQI
16th April 2025
43AQI
43AQI
17th April 2025
48AQI
48AQI
18th April 2025
49AQI
49AQI
19th April 2025
30AQI
30AQI
20th April 2025
41AQI
41AQI
21st April 2025
23AQI
23AQI
22nd April 2025
36AQI
36AQI
23rd April 2025
38AQI
38AQI
24th April 2025
33AQI
33AQI
25th April 2025
24AQI
24AQI
26th April 2025
23AQI
23AQI
27th April 2025
28AQI
28AQI
28th April 2025
38AQI
38AQI
29th April 2025
26AQI
26AQI
30th April 2025
35AQI
35AQI
1st May 2025
29AQI
29AQI
2nd May 2025
24AQI
24AQI
3rd May 2025
19AQI
19AQI
4th May 2025
33AQI
33AQI
5th May 2025
27AQI
27AQI
6th May 2025
35AQI
35AQI
7th May 2025
40AQI
40AQI
8th May 2025
24AQI
24AQI
9th May 2025
36AQI
36AQI
10th May 2025
42AQI
42AQI
11th May 2025
33AQI
33AQI
12th May 2025
42AQI
42AQI
13th May 2025
42AQI
42AQI
14th May 2025
39AQI
39AQI
15th May 2025
43AQI
43AQI
16th May 2025
32AQI
32AQI
17th May 2025
20AQI
20AQI
18th May 2025
20AQI
20AQI
19th May 2025
22AQI
22AQI
20th May 2025
21AQI
21AQI
21st May 2025
18AQI
18AQI
22nd May 2025
20AQI
20AQI
23rd May 2025
27AQI
27AQI
24th May 2025
25AQI
25AQI
25th May 2025
26AQI
26AQI
26th May 2025
33AQI
33AQI
27th May 2025
27AQI
27AQI
28th May 2025
32AQI
32AQI
29th May 2025
32AQI
32AQI
30th May 2025
42AQI
42AQI
31st May 2025
42AQI
42AQI
1st June 2025
52AQI
52AQI
2nd June 2025
54AQI
54AQI
3rd June 2025
55AQI
55AQI
4th June 2025
78AQI
78AQI
5th June 2025
66AQI
66AQI
6th June 2025
67AQI
67AQI
7th June 2025
69AQI
69AQI
8th June 2025
77AQI
77AQI
9th June 2025
68AQI
68AQI
10th June 2025
65AQI
65AQI
11th June 2025
65AQI
65AQI
12th June 2025
71AQI
71AQI
13th June 2025
66AQI
66AQI
14th June 2025
59AQI
59AQI
15th June 2025
48AQI
48AQI
16th June 2025
51AQI
51AQI
17th June 2025
32AQI
32AQI
18th June 2025
23AQI
23AQI
19th June 2025
29AQI
29AQI
20th June 2025
34AQI
34AQI
21st June 2025
43AQI
43AQI
22nd June 2025
45AQI
45AQI
23rd June 2025
53AQI
53AQI
24th June 2025
25AQI
25AQI
25th June 2025
29AQI
29AQI
26th June 2025
29AQI
29AQI
27th June 2025
19AQI
19AQI
28th June 2025
30AQI
30AQI
29th June 2025
32AQI
32AQI
30th June 2025
24AQI
24AQI
1st July 2025
39AQI
39AQI
2nd July 2025
47AQI
47AQI
3rd July 2025
44AQI
44AQI
4th July 2025
47AQI
47AQI
5th July 2025
52AQI
52AQI
6th July 2025
37AQI
37AQI
7th July 2025
53AQI
53AQI
8th July 2025
50AQI
50AQI
9th July 2025
34AQI
34AQI
10th July 2025
32AQI
32AQI
11th July 2025
26AQI
26AQI
12th July 2025
45AQI
45AQI
13th July 2025
58AQI
58AQI
14th July 2025
69AQI
69AQI
15th July 2025
62AQI
62AQI
16th July 2025
34AQI
34AQI
17th July 2025
21AQI
21AQI
18th July 2025
26AQI
26AQI
19th July 2025
22AQI
22AQI
20th July 2025
18AQI
18AQI
21st July 2025
48AQI
48AQI
22nd July 2025
49AQI
49AQI
23rd July 2025
42AQI
42AQI
24th July 2025
25AQI
25AQI
25th July 2025
23AQI
23AQI
26th July 2025
31AQI
31AQI
27th July 2025
22AQI
22AQI
28th July 2025
23AQI
23AQI
29th July 2025
37AQI
37AQI
30th July 2025
43AQI
43AQI
31st July 2025
107AQI
107AQI
1st August 2025
101AQI
101AQI
2nd August 2025
96AQI
96AQI
3rd August 2025
87AQI
87AQI
4th August 2025
78AQI
78AQI
5th August 2025
60AQI
60AQI
6th August 2025
61AQI
61AQI
7th August 2025
54AQI
54AQI
8th August 2025
47AQI
47AQI
9th August 2025
46AQI
46AQI
31AQI
35AQI
33AQI
36AQI
31AQI
49AQI
41AQI
70AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202538AQI
30
1
26
2
29
2
28
2
31
14
16
25
5
1
2
6
1
185
34
2
Highest AQI recorded in
August70AQI
Lowest AQI recorded in
January31AQI
202432AQI
25
6
25
4
30
1
30
29
2
29
30
1
28
3
28
2
25
6
30
29
2
338
27
Highest AQI recorded in
October40AQI
Lowest AQI recorded in
April23AQI
202341AQI
19
12
26
2
27
1
27
3
24
7
10
15
4
1
22
7
2
20
11
26
4
31
25
3
24
7
281
72
6
1
Highest AQI recorded in
June69AQI
Lowest AQI recorded in
February32AQI
202231AQI
29
1
19
3
31
29
27
3
19
1
20
2
3
29
22
8
25
5
30
1
283
24
Highest AQI recorded in
October42AQI
Lowest AQI recorded in
April19AQI
202134AQI
21
9
16
12
29
2
28
2
31
30
18
13
26
5
28
2
31
30
30
1
318
46
Highest AQI recorded in
February48AQI
Lowest AQI recorded in
June25AQI
202029AQI
13
18
2
18
30
29
2
31
30
29
1
28
2
24
7
250
14
Highest AQI recorded in
April38AQI
Lowest AQI recorded in
May22AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
41AQILeast Polluted Year Recorded
2020(Avg.)
29AQIWaterloo's annual 2025 AQI (38) shows an average percentage change of 14.2% (worsened AQI) compared to previous years: 2020 (29), 2021 (34), 2022 (31), 2023 (41), 2024 (32).
