Country Background

Greendale, Wisconsin, 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

Greendale, Wisconsin, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
3rd Aug 2025
127AQI
Lowest AQI recorded on
20th Aug 2025
17AQI


Same Day Analysis (30th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 18 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 30th Aug - 31st Aug 2025

Greendale, Wisconsin, United States

AQI
Day
Night
.

6 AM30th Aug 2025

7 PM

5 AM31st Aug 2025

Day time
Avg. Highest Time
8AM30th Aug

18AQI

Avg. Lowest Time
7PM30th Aug

16AQI

Night time
Avg. Highest Time
2AM31st Aug

54AQI

Avg. Lowest Time
8PM30th Aug

17AQI

In the last 24 hours,

Greendale's AQI reached its highest point of 54 at 2 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 30th Aug and 31st Aug 2025.

Day & Night AQI Trend : Aug 2025

Greendale, Wisconsin, United States

Aug
01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 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
Day
Night
1st Aug 2025986 AMAQI
1st Aug 2025947 AMAQI
1st Aug 20251048 AMAQI
1st Aug 2025999 AMAQI
1st Aug 202510410 AMAQI
1st Aug 20259911 AMAQI
1st Aug 20259712 PMAQI
1st Aug 2025891 PMAQI
1st Aug 2025942 PMAQI
1st Aug 2025923 PMAQI
1st Aug 2025844 PMAQI
1st Aug 2025975 PMAQI
1st Aug 2025966 PMAQI
1st Aug 20251037 PMAQI
1st Aug 20251038 PMAQI
1st Aug 20251089 PMAQI
1st Aug 202511810 PMAQI
1st Aug 202511611 PMAQI
2nd Aug 202512612 AMAQI
2nd Aug 20251171 AMAQI
2nd Aug 20251282 AMAQI
2nd Aug 20251173 AMAQI
2nd Aug 20251144 AMAQI
2nd Aug 20251245 AMAQI

19°C15/25°C

2nd Aug 20251206 AMAQI
2nd Aug 20251107 AMAQI
2nd Aug 20251188 AMAQI
2nd Aug 20251239 AMAQI
2nd Aug 202512310 AMAQI
2nd Aug 202510311 AMAQI
2nd Aug 20259412 PMAQI
2nd Aug 2025921 PMAQI
2nd Aug 2025932 PMAQI
2nd Aug 2025963 PMAQI
2nd Aug 20251044 PMAQI
2nd Aug 20251165 PMAQI
2nd Aug 20251306 PMAQI
2nd Aug 20251297 PMAQI
2nd Aug 20251248 PMAQI
2nd Aug 20251179 PMAQI
2nd Aug 202510710 PMAQI
2nd Aug 202510511 PMAQI
3rd Aug 202511012 AMAQI
3rd Aug 20251141 AMAQI
3rd Aug 20251122 AMAQI
3rd Aug 20251103 AMAQI
3rd Aug 20251164 AMAQI
3rd Aug 20251095 AMAQI

19°C9/28°C

3rd Aug 20251126 AMAQI
3rd Aug 20251157 AMAQI
3rd Aug 20251208 AMAQI
3rd Aug 20251209 AMAQI
3rd Aug 202512510 AMAQI
3rd Aug 202512811 AMAQI
3rd Aug 202513912 PMAQI
3rd Aug 20251331 PMAQI
3rd Aug 20251412 PMAQI
3rd Aug 20251473 PMAQI
3rd Aug 20251524 PMAQI
3rd Aug 20251425 PMAQI
3rd Aug 20251456 PMAQI
3rd Aug 20251297 PMAQI
3rd Aug 20251378 PMAQI
3rd Aug 20251399 PMAQI
3rd Aug 202513410 PMAQI
3rd Aug 202514411 PMAQI
4th Aug 202513312 AMAQI
4th Aug 20251431 AMAQI
4th Aug 20251392 AMAQI
4th Aug 20251413 AMAQI
4th Aug 20251504 AMAQI
4th Aug 20251515 AMAQI

19°C11/26°C

4th Aug 20251436 AMAQI
4th Aug 20251497 AMAQI
4th Aug 20251538 AMAQI
4th Aug 20251519 AMAQI
4th Aug 202514810 AMAQI
4th Aug 202513511 AMAQI
4th Aug 202511112 PMAQI
4th Aug 2025881 PMAQI
4th Aug 2025772 PMAQI
4th Aug 2025713 PMAQI
4th Aug 2025674 PMAQI
4th Aug 2025675 PMAQI
4th Aug 2025646 PMAQI
4th Aug 20251467 PMAQI
4th Aug 20251028 PMAQI
4th Aug 2025669 PMAQI
4th Aug 20256610 PMAQI
4th Aug 20256811 PMAQI
5th Aug 20256812 AMAQI
5th Aug 2025751 AMAQI
5th Aug 2025822 AMAQI
5th Aug 2025863 AMAQI
5th Aug 2025944 AMAQI
5th Aug 20251065 AMAQI

19°C12/25°C

5th Aug 20251106 AMAQI
5th Aug 20251097 AMAQI
5th Aug 20251128 AMAQI
5th Aug 20251109 AMAQI
5th Aug 202510910 AMAQI
5th Aug 202510311 AMAQI
5th Aug 202510612 PMAQI
5th Aug 20251101 PMAQI
5th Aug 20251142 PMAQI
5th Aug 20251063 PMAQI
5th Aug 20251154 PMAQI
5th Aug 20251175 PMAQI
5th Aug 20251206 PMAQI
5th Aug 20251087 PMAQI
5th Aug 20251058 PMAQI
5th Aug 20251189 PMAQI
5th Aug 202511210 PMAQI
5th Aug 202511211 PMAQI
6th Aug 202511712 AMAQI
6th Aug 20251191 AMAQI
6th Aug 20251132 AMAQI
6th Aug 20251113 AMAQI
6th Aug 20251094 AMAQI
6th Aug 20251075 AMAQI

22°C16/29°C

6th Aug 20251096 AMAQI
6th Aug 20251147 AMAQI
6th Aug 20251088 AMAQI
6th Aug 20251089 AMAQI
6th Aug 20259810 AMAQI
6th Aug 20259011 AMAQI
6th Aug 20258812 PMAQI
6th Aug 2025841 PMAQI
6th Aug 2025762 PMAQI
6th Aug 2025723 PMAQI
6th Aug 2025714 PMAQI
6th Aug 2025685 PMAQI
6th Aug 2025696 PMAQI
6th Aug 20251007 PMAQI
6th Aug 2025858 PMAQI
6th Aug 2025709 PMAQI
6th Aug 20257010 PMAQI
6th Aug 20256811 PMAQI
7th Aug 20257412 AMAQI
7th Aug 2025811 AMAQI
7th Aug 2025692 AMAQI
7th Aug 2025703 AMAQI
7th Aug 2025724 AMAQI
7th Aug 2025695 AMAQI

22°C17/30°C

7th Aug 2025706 AMAQI
7th Aug 2025727 AMAQI
7th Aug 2025718 AMAQI
7th Aug 2025719 AMAQI
7th Aug 20256610 AMAQI
7th Aug 20256011 AMAQI
7th Aug 20255912 PMAQI
7th Aug 2025581 PMAQI
7th Aug 2025592 PMAQI
7th Aug 2025633 PMAQI
7th Aug 2025634 PMAQI
7th Aug 2025625 PMAQI
7th Aug 2025626 PMAQI
7th Aug 2025667 PMAQI
7th Aug 2025658 PMAQI
7th Aug 2025629 PMAQI
7th Aug 20256210 PMAQI
7th Aug 20256011 PMAQI
8th Aug 20256112 AMAQI
8th Aug 2025581 AMAQI
8th Aug 2025512 AMAQI
8th Aug 2025523 AMAQI
8th Aug 2025524 AMAQI
8th Aug 2025525 AMAQI

24°C18/32°C

8th Aug 2025536 AMAQI
8th Aug 2025537 AMAQI
8th Aug 2025548 AMAQI
8th Aug 2025539 AMAQI
8th Aug 20255310 AMAQI
8th Aug 20255311 AMAQI
8th Aug 20255312 PMAQI
8th Aug 2025531 PMAQI
8th Aug 2025542 PMAQI
8th Aug 2025543 PMAQI
8th Aug 2025544 PMAQI
8th Aug 2025545 PMAQI
8th Aug 2025546 PMAQI
8th Aug 2025547 PMAQI
8th Aug 2025558 PMAQI
8th Aug 2025549 PMAQI
8th Aug 20255410 PMAQI
8th Aug 20255511 PMAQI
9th Aug 20255512 AMAQI
9th Aug 2025541 AMAQI
9th Aug 2025542 AMAQI
9th Aug 2025533 AMAQI
9th Aug 2025534 AMAQI
9th Aug 2025555 AMAQI

27°C20/35°C

9th Aug 2025556 AMAQI
9th Aug 2025557 AMAQI
9th Aug 2025558 AMAQI
9th Aug 2025559 AMAQI
9th Aug 20255410 AMAQI
9th Aug 20255411 AMAQI
9th Aug 20255312 PMAQI
9th Aug 2025521 PMAQI
9th Aug 2025532 PMAQI
9th Aug 2025533 PMAQI
9th Aug 2025544 PMAQI
9th Aug 2025545 PMAQI
9th Aug 2025546 PMAQI
9th Aug 2025547 PMAQI
9th Aug 2025548 PMAQI
9th Aug 2025529 PMAQI
9th Aug 20254910 PMAQI
9th Aug 20254611 PMAQI
10th Aug 20254612 AMAQI
10th Aug 2025431 AMAQI
10th Aug 2025312 AMAQI
10th Aug 2025283 AMAQI
10th Aug 2025274 AMAQI
10th Aug 2025265 AMAQI

27°C22/35°C

10th Aug 2025296 AMAQI
10th Aug 2025307 AMAQI
10th Aug 2025318 AMAQI
10th Aug 2025319 AMAQI
10th Aug 20253210 AMAQI
10th Aug 20253311 AMAQI
10th Aug 20253412 PMAQI
10th Aug 2025341 PMAQI
10th Aug 2025342 PMAQI
10th Aug 2025343 PMAQI
10th Aug 2025324 PMAQI
10th Aug 2025315 PMAQI
10th Aug 2025326 PMAQI
10th Aug 2025337 PMAQI
10th Aug 2025328 PMAQI
10th Aug 2025349 PMAQI
10th Aug 20253610 PMAQI
10th Aug 20253611 PMAQI
11th Aug 20253812 AMAQI
11th Aug 2025401 AMAQI
11th Aug 2025412 AMAQI
11th Aug 2025443 AMAQI
11th Aug 2025444 AMAQI
11th Aug 2025455 AMAQI

25°C22/28°C

11th Aug 2025436 AMAQI
11th Aug 2025447 AMAQI
11th Aug 2025468 AMAQI
11th Aug 2025449 AMAQI
11th Aug 20254210 AMAQI
11th Aug 20253911 AMAQI
11th Aug 20253512 PMAQI
11th Aug 2025321 PMAQI
11th Aug 2025322 PMAQI
11th Aug 2025313 PMAQI
11th Aug 2025304 PMAQI
11th Aug 2025305 PMAQI
11th Aug 2025266 PMAQI
11th Aug 2025367 PMAQI
11th Aug 2025328 PMAQI
11th Aug 2025329 PMAQI
11th Aug 20253210 PMAQI
11th Aug 20253211 PMAQI
12th Aug 20253412 AMAQI
12th Aug 2025331 AMAQI
12th Aug 2025372 AMAQI
12th Aug 2025383 AMAQI
12th Aug 2025384 AMAQI
12th Aug 2025395 AMAQI

25°C21/31°C

12th Aug 2025366 AMAQI
12th Aug 2025367 AMAQI
12th Aug 2025328 AMAQI
12th Aug 2025319 AMAQI
12th Aug 20253010 AMAQI
12th Aug 20252811 AMAQI
12th Aug 20252612 PMAQI
12th Aug 2025241 PMAQI
12th Aug 2025252 PMAQI
12th Aug 2025283 PMAQI
12th Aug 2025304 PMAQI
12th Aug 2025315 PMAQI
12th Aug 2025286 PMAQI
12th Aug 2025317 PMAQI
12th Aug 2025288 PMAQI
12th Aug 2025309 PMAQI
12th Aug 20252910 PMAQI
12th Aug 20252911 PMAQI
13th Aug 20252912 AMAQI
13th Aug 2025291 AMAQI
13th Aug 2025362 AMAQI
13th Aug 2025463 AMAQI
13th Aug 2025554 AMAQI
13th Aug 2025575 AMAQI

24°C21/31°C

13th Aug 2025596 AMAQI
13th Aug 2025617 AMAQI
13th Aug 2025608 AMAQI
13th Aug 2025599 AMAQI
13th Aug 20255810 AMAQI
13th Aug 20255711 AMAQI
13th Aug 20255212 PMAQI
13th Aug 2025511 PMAQI
13th Aug 2025552 PMAQI
13th Aug 2025523 PMAQI
13th Aug 2025544 PMAQI
13th Aug 2025525 PMAQI
13th Aug 2025536 PMAQI
13th Aug 2025527 PMAQI
13th Aug 2025548 PMAQI
13th Aug 2025589 PMAQI
13th Aug 20255810 PMAQI
13th Aug 20255811 PMAQI
14th Aug 20255812 AMAQI
14th Aug 2025601 AMAQI
14th Aug 2025602 AMAQI
14th Aug 2025623 AMAQI
14th Aug 2025614 AMAQI
14th Aug 2025615 AMAQI

22°C18/26°C

14th Aug 2025646 AMAQI
14th Aug 2025647 AMAQI
14th Aug 2025658 AMAQI
14th Aug 2025669 AMAQI
14th Aug 20256810 AMAQI
14th Aug 20256811 AMAQI
14th Aug 20256812 PMAQI
14th Aug 2025681 PMAQI
14th Aug 2025712 PMAQI
14th Aug 2025713 PMAQI
14th Aug 2025724 PMAQI
14th Aug 2025715 PMAQI
14th Aug 2025696 PMAQI
14th Aug 2025657 PMAQI
14th Aug 2025698 PMAQI
14th Aug 2025739 PMAQI
14th Aug 20257010 PMAQI
14th Aug 20257211 PMAQI
15th Aug 20257312 AMAQI
15th Aug 2025721 AMAQI
15th Aug 2025732 AMAQI
15th Aug 2025743 AMAQI
15th Aug 2025754 AMAQI
15th Aug 2025755 AMAQI

21°C14/29°C

15th Aug 2025756 AMAQI
15th Aug 2025777 AMAQI
15th Aug 2025788 AMAQI
15th Aug 2025809 AMAQI
15th Aug 20257710 AMAQI
15th Aug 20257511 AMAQI
15th Aug 20257112 PMAQI
15th Aug 2025681 PMAQI
15th Aug 2025682 PMAQI
15th Aug 2025683 PMAQI
15th Aug 2025684 PMAQI
15th Aug 2025675 PMAQI
15th Aug 2025686 PMAQI
15th Aug 2025727 PMAQI
15th Aug 2025698 PMAQI
15th Aug 2025659 PMAQI
15th Aug 20256510 PMAQI
15th Aug 20256611 PMAQI
16th Aug 20256712 AMAQI
16th Aug 2025691 AMAQI
16th Aug 2025682 AMAQI
16th Aug 2025663 AMAQI
16th Aug 2025674 AMAQI
16th Aug 2025655 AMAQI

23°C15/32°C

16th Aug 2025626 AMAQI
16th Aug 2025617 AMAQI
16th Aug 2025628 AMAQI
16th Aug 2025619 AMAQI
16th Aug 20256010 AMAQI
16th Aug 20255911 AMAQI
16th Aug 20255912 PMAQI
16th Aug 2025571 PMAQI
16th Aug 2025582 PMAQI
16th Aug 2025563 PMAQI
16th Aug 2025534 PMAQI
16th Aug 2025485 PMAQI
16th Aug 2025406 PMAQI
16th Aug 2025547 PMAQI
16th Aug 2025498 PMAQI
16th Aug 2025389 PMAQI
16th Aug 20254110 PMAQI
16th Aug 20253911 PMAQI
17th Aug 20253812 AMAQI
17th Aug 2025391 AMAQI
17th Aug 2025372 AMAQI
17th Aug 2025363 AMAQI
17th Aug 2025344 AMAQI
17th Aug 2025325 AMAQI

26°C21/34°C

17th Aug 2025316 AMAQI
17th Aug 2025327 AMAQI
17th Aug 2025308 AMAQI
17th Aug 2025289 AMAQI
17th Aug 20252810 AMAQI
17th Aug 20252611 AMAQI
17th Aug 20252512 PMAQI
17th Aug 2025231 PMAQI
17th Aug 2025212 PMAQI
17th Aug 2025213 PMAQI
17th Aug 2025224 PMAQI
17th Aug 2025235 PMAQI
17th Aug 2025236 PMAQI
17th Aug 2025307 PMAQI
17th Aug 2025268 PMAQI
17th Aug 2025239 PMAQI
17th Aug 20252210 PMAQI
17th Aug 20251811 PMAQI
18th Aug 20251912 AMAQI
18th Aug 2025181 AMAQI
18th Aug 2025182 AMAQI
18th Aug 2025203 AMAQI
18th Aug 2025224 AMAQI
18th Aug 2025245 AMAQI

22°C20/27°C

18th Aug 2025286 AMAQI
18th Aug 2025287 AMAQI
18th Aug 2025278 AMAQI
18th Aug 2025309 AMAQI
18th Aug 20253510 AMAQI
18th Aug 20253611 AMAQI
18th Aug 20253712 PMAQI
18th Aug 2025341 PMAQI
18th Aug 2025362 PMAQI
18th Aug 2025363 PMAQI
18th Aug 2025314 PMAQI
18th Aug 2025285 PMAQI
18th Aug 2025316 PMAQI
18th Aug 2025287 PMAQI
18th Aug 2025278 PMAQI
18th Aug 2025319 PMAQI
18th Aug 20253110 PMAQI
18th Aug 20252811 PMAQI
19th Aug 20252812 AMAQI
19th Aug 2025271 AMAQI
19th Aug 2025262 AMAQI
19th Aug 2025253 AMAQI
19th Aug 2025244 AMAQI
19th Aug 2025265 AMAQI

23°C20/26°C

19th Aug 2025266 AMAQI
19th Aug 2025257 AMAQI
19th Aug 2025268 AMAQI
19th Aug 2025279 AMAQI
19th Aug 20252510 AMAQI
19th Aug 20252211 AMAQI
19th Aug 20252212 PMAQI
19th Aug 2025201 PMAQI
19th Aug 2025182 PMAQI
19th Aug 2025203 PMAQI
19th Aug 2025184 PMAQI
19th Aug 2025185 PMAQI
19th Aug 2025186 PMAQI
19th Aug 2025247 PMAQI
19th Aug 2025208 PMAQI
19th Aug 2025259 PMAQI
19th Aug 20253810 PMAQI
19th Aug 20253311 PMAQI
20th Aug 20252612 AMAQI
20th Aug 2025201 AMAQI
20th Aug 2025182 AMAQI
20th Aug 2025173 AMAQI
20th Aug 2025184 AMAQI
20th Aug 2025185 AMAQI

23°C19/26°C

20th Aug 2025186 AMAQI
20th Aug 2025187 AMAQI
20th Aug 2025188 AMAQI
20th Aug 2025189 AMAQI
20th Aug 20251810 AMAQI
20th Aug 20251711 AMAQI
20th Aug 20251512 PMAQI
20th Aug 2025161 PMAQI
20th Aug 2025152 PMAQI
20th Aug 2025153 PMAQI
20th Aug 2025154 PMAQI
20th Aug 2025165 PMAQI
20th Aug 2025166 PMAQI
20th Aug 2025187 PMAQI
20th Aug 2025168 PMAQI
20th Aug 2025169 PMAQI
20th Aug 20251610 PMAQI
20th Aug 20251611 PMAQI
21st Aug 20251412 AMAQI
21st Aug 2025141 AMAQI
21st Aug 2025172 AMAQI
21st Aug 2025163 AMAQI
21st Aug 2025174 AMAQI
21st Aug 2025175 AMAQI

21°C17/26°C

21st Aug 2025186 AMAQI
21st Aug 2025197 AMAQI
21st Aug 2025208 AMAQI
21st Aug 2025199 AMAQI
21st Aug 20251810 AMAQI
21st Aug 20251811 AMAQI
21st Aug 20251812 PMAQI
21st Aug 2025191 PMAQI
21st Aug 2025192 PMAQI
21st Aug 2025193 PMAQI
21st Aug 2025194 PMAQI
21st Aug 2025195 PMAQI
21st Aug 2025186 PMAQI
21st Aug 2025187 PMAQI
21st Aug 2025188 PMAQI
21st Aug 2025189 PMAQI
21st Aug 20251910 PMAQI
21st Aug 20252211 PMAQI
22nd Aug 20252412 AMAQI
22nd Aug 2025261 AMAQI
22nd Aug 2025282 AMAQI
22nd Aug 2025283 AMAQI
22nd Aug 2025294 AMAQI
22nd Aug 2025305 AMAQI

21°C17/24°C

22nd Aug 2025296 AMAQI
22nd Aug 2025277 AMAQI
22nd Aug 2025288 AMAQI
22nd Aug 2025289 AMAQI
22nd Aug 20252810 AMAQI
22nd Aug 20252811 AMAQI
22nd Aug 20252612 PMAQI
22nd Aug 2025251 PMAQI
22nd Aug 2025242 PMAQI
22nd Aug 2025243 PMAQI
22nd Aug 2025254 PMAQI
22nd Aug 2025275 PMAQI
22nd Aug 2025256 PMAQI
22nd Aug 2025267 PMAQI
22nd Aug 2025258 PMAQI
22nd Aug 2025269 PMAQI
22nd Aug 20252810 PMAQI
22nd Aug 20253111 PMAQI
23rd Aug 20253312 AMAQI
23rd Aug 2025361 AMAQI
23rd Aug 2025372 AMAQI
23rd Aug 2025363 AMAQI
23rd Aug 2025344 AMAQI
23rd Aug 2025335 AMAQI

20°C12/26°C

23rd Aug 2025346 AMAQI
23rd Aug 2025337 AMAQI
23rd Aug 2025338 AMAQI
23rd Aug 2025349 AMAQI
23rd Aug 20253410 AMAQI
23rd Aug 20253311 AMAQI
23rd Aug 20253412 PMAQI
23rd Aug 2025361 PMAQI
23rd Aug 2025362 PMAQI
23rd Aug 2025323 PMAQI
23rd Aug 2025304 PMAQI
23rd Aug 2025265 PMAQI
23rd Aug 2025246 PMAQI
23rd Aug 2025317 PMAQI
23rd Aug 2025268 PMAQI
23rd Aug 2025209 PMAQI
23rd Aug 20252010 PMAQI
23rd Aug 20252211 PMAQI
24th Aug 20252212 AMAQI
24th Aug 2025221 AMAQI
24th Aug 2025202 AMAQI
24th Aug 2025213 AMAQI
24th Aug 2025214 AMAQI
24th Aug 2025195 AMAQI

21°C14/27°C

24th Aug 2025196 AMAQI
24th Aug 2025207 AMAQI
24th Aug 2025208 AMAQI
24th Aug 2025209 AMAQI
24th Aug 20251910 AMAQI
24th Aug 20251811 AMAQI
24th Aug 20251812 PMAQI
24th Aug 2025181 PMAQI
24th Aug 2025172 PMAQI
24th Aug 2025163 PMAQI
24th Aug 2025154 PMAQI
24th Aug 2025165 PMAQI
24th Aug 2025166 PMAQI
24th Aug 2025197 PMAQI
24th Aug 2025188 PMAQI
24th Aug 2025169 PMAQI
24th Aug 20251710 PMAQI
24th Aug 20251611 PMAQI
25th Aug 20251612 AMAQI
25th Aug 2025161 AMAQI
25th Aug 2025172 AMAQI
25th Aug 2025163 AMAQI
25th Aug 2025164 AMAQI
25th Aug 2025165 AMAQI

16°C11/22°C

25th Aug 2025166 AMAQI
25th Aug 2025157 AMAQI
25th Aug 2025178 AMAQI
25th Aug 2025169 AMAQI
25th Aug 20251610 AMAQI
25th Aug 20251611 AMAQI
25th Aug 20251712 PMAQI
25th Aug 2025181 PMAQI
25th Aug 2025162 PMAQI
25th Aug 2025183 PMAQI
25th Aug 2025194 PMAQI
25th Aug 2025185 PMAQI
25th Aug 2025186 PMAQI
25th Aug 2025177 PMAQI
25th Aug 2025198 PMAQI
25th Aug 2025209 PMAQI
25th Aug 20252210 PMAQI
25th Aug 20252311 PMAQI
26th Aug 20253012 AMAQI
26th Aug 2025241 AMAQI
26th Aug 2025232 AMAQI
26th Aug 2025243 AMAQI
26th Aug 2025254 AMAQI
26th Aug 2025255 AMAQI

14°C8/21°C

26th Aug 2025266 AMAQI
26th Aug 2025277 AMAQI
26th Aug 2025268 AMAQI
26th Aug 2025279 AMAQI
26th Aug 20252610 AMAQI
26th Aug 20252511 AMAQI
26th Aug 20252512 PMAQI
26th Aug 2025241 PMAQI
26th Aug 2025242 PMAQI
26th Aug 2025233 PMAQI
26th Aug 2025224 PMAQI
26th Aug 2025215 PMAQI
26th Aug 2025206 PMAQI
26th Aug 2025247 PMAQI
26th Aug 2025228 PMAQI
26th Aug 2025229 PMAQI
26th Aug 20252310 PMAQI
26th Aug 20252911 PMAQI
27th Aug 20253112 AMAQI
27th Aug 2025351 AMAQI
27th Aug 2025332 AMAQI
27th Aug 2025323 AMAQI
27th Aug 2025314 AMAQI
27th Aug 2025325 AMAQI

15°C7/21°C

27th Aug 2025316 AMAQI
27th Aug 2025307 AMAQI
27th Aug 2025328 AMAQI
27th Aug 2025349 AMAQI
27th Aug 20253210 AMAQI
27th Aug 20252811 AMAQI
27th Aug 20252712 PMAQI
27th Aug 2025271 PMAQI
27th Aug 2025262 PMAQI
27th Aug 2025263 PMAQI
27th Aug 2025244 PMAQI
27th Aug 2025275 PMAQI
27th Aug 2025266 PMAQI
27th Aug 2025297 PMAQI
27th Aug 2025288 PMAQI
27th Aug 2025289 PMAQI
27th Aug 20252910 PMAQI
27th Aug 20253011 PMAQI
28th Aug 20252912 AMAQI
28th Aug 2025301 AMAQI
28th Aug 2025282 AMAQI
28th Aug 2025303 AMAQI
28th Aug 2025294 AMAQI
28th Aug 2025305 AMAQI

16°C7/24°C

28th Aug 2025296 AMAQI
28th Aug 2025307 AMAQI
28th Aug 2025318 AMAQI
28th Aug 2025299 AMAQI
28th Aug 20253010 AMAQI
28th Aug 20253211 AMAQI
28th Aug 20253212 PMAQI
28th Aug 2025321 PMAQI
28th Aug 2025332 PMAQI
28th Aug 2025323 PMAQI
28th Aug 2025324 PMAQI
28th Aug 2025325 PMAQI
28th Aug 2025326 PMAQI
28th Aug 2025307 PMAQI
28th Aug 2025308 PMAQI
28th Aug 2025299 PMAQI
28th Aug 20253010 PMAQI
28th Aug 20252111 PMAQI
29th Aug 20251912 AMAQI
29th Aug 2025181 AMAQI
29th Aug 2025172 AMAQI
29th Aug 2025173 AMAQI
29th Aug 2025174 AMAQI
29th Aug 2025175 AMAQI

18°C13/23°C

29th Aug 2025166 AMAQI
29th Aug 2025187 AMAQI
29th Aug 2025218 AMAQI
29th Aug 2025239 AMAQI
29th Aug 20251910 AMAQI
29th Aug 20251611 AMAQI
29th Aug 20251612 PMAQI
29th Aug 2025161 PMAQI
29th Aug 2025152 PMAQI
29th Aug 2025163 PMAQI
29th Aug 2025164 PMAQI
29th Aug 2025155 PMAQI
29th Aug 2025156 PMAQI
29th Aug 2025177 PMAQI
29th Aug 2025178 PMAQI
29th Aug 2025179 PMAQI
29th Aug 20252210 PMAQI
29th Aug 20251911 PMAQI
30th Aug 20252012 AMAQI
30th Aug 2025201 AMAQI
30th Aug 2025202 AMAQI
30th Aug 2025183 AMAQI
30th Aug 2025184 AMAQI
30th Aug 2025175 AMAQI

15°C12/19°C

30th Aug 2025176 AMAQI
30th Aug 2025177 AMAQI
30th Aug 2025188 AMAQI
30th Aug 2025189 AMAQI
30th Aug 20251710 AMAQI
30th Aug 20251611 AMAQI
30th Aug 20251612 PMAQI
30th Aug 2025161 PMAQI
30th Aug 2025162 PMAQI
30th Aug 2025163 PMAQI
30th Aug 2025174 PMAQI
30th Aug 2025175 PMAQI
30th Aug 2025176 PMAQI
30th Aug 2025167 PMAQI
30th Aug 2025178 PMAQI
30th Aug 2025209 PMAQI
30th Aug 20252210 PMAQI
30th Aug 20253811 PMAQI
31st Aug 20254712 AMAQI
31st Aug 2025531 AMAQI
31st Aug 2025542 AMAQI
31st Aug 2025543 AMAQI

17°C14/22°C

6 AM
12 PM
7 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 10 AM

53AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
1 PM - 6 PM

47AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 10 AM (Avg. 53), while the lowest AQI was between 1 PM to 6 PM (Avg. 47).
Night time
Avg. Highest Time
12 AM - 5 AM

52AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
8 PM - 11 PM

48AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 52), while the lowest AQI was between 8 PM to 11 PM (Avg. 48).

2025 Days Vs Air Quality

Greendale, Wisconsin, United States

2025

84%

203

13%

32

2%

6

0.4%

1

Total number of days with different AQI categories in last 243 days in 2025 (122 days remaining)

Good
203 Days
Moderate
32 Days
Poor
6 Days
Unhealthy
1 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 84%

Health Risk Level:

Low

In 2025, 84% of 243 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

Greendale, Wisconsin, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
23AQI
2nd January 2025
28AQI
3rd January 2025
24AQI
4th January 2025
20AQI
5th January 2025
20AQI
6th January 2025
23AQI
7th January 2025
38AQI
8th January 2025
32AQI
9th January 2025
50AQI
10th January 2025
69AQI
11th January 2025
45AQI
12th January 2025
45AQI
13th January 2025
24AQI
14th January 2025
39AQI
15th January 2025
38AQI
16th January 2025
34AQI
17th January 2025
28AQI
18th January 2025
21AQI
19th January 2025
20AQI
20th January 2025
21AQI
21st January 2025
24AQI
22nd January 2025
26AQI
23rd January 2025
42AQI
24th January 2025
45AQI
25th January 2025
36AQI
26th January 2025
22AQI
27th January 2025
28AQI
28th January 2025
31AQI
29th January 2025
22AQI
30th January 2025
34AQI
31st January 2025
42AQI
1st February 2025
20AQI
2nd February 2025
43AQI
3rd February 2025
38AQI
4th February 2025
24AQI
5th February 2025
22AQI
6th February 2025
31AQI
7th February 2025
25AQI
8th February 2025
30AQI
9th February 2025
45AQI
10th February 2025
39AQI
11th February 2025
42AQI
12th February 2025
34AQI
13th February 2025
35AQI
14th February 2025
49AQI
15th February 2025
46AQI
16th February 2025
27AQI
17th February 2025
34AQI
18th February 2025
28AQI
19th February 2025
30AQI
20th February 2025
28AQI
21st February 2025
33AQI
22nd February 2025
39AQI
23rd February 2025
64AQI
24th February 2025
40AQI
25th February 2025
26AQI
26th February 2025
40AQI
27th February 2025
37AQI
28th February 2025
22AQI
1st March 2025
22AQI
2nd March 2025
23AQI
3rd March 2025
37AQI
4th March 2025
37AQI
5th March 2025
27AQI
6th March 2025
20AQI
7th March 2025
27AQI
8th March 2025
23AQI
9th March 2025
21AQI
10th March 2025
23AQI
11th March 2025
22AQI
12th March 2025
21AQI
13th March 2025
37AQI
14th March 2025
47AQI
15th March 2025
71AQI
16th March 2025
17AQI
17th March 2025
21AQI
18th March 2025
26AQI
19th March 2025
24AQI
20th March 2025
16AQI
21st March 2025
22AQI
22nd March 2025
16AQI
23rd March 2025
21AQI
24th March 2025
19AQI
25th March 2025
22AQI
26th March 2025
23AQI
27th March 2025
34AQI
28th March 2025
43AQI
29th March 2025
19AQI
30th March 2025
17AQI
31st March 2025
16AQI
1st April 2025
16AQI
2nd April 2025
26AQI
3rd April 2025
19AQI
4th April 2025
21AQI
5th April 2025
20AQI
6th April 2025
21AQI
7th April 2025
24AQI
8th April 2025
16AQI
9th April 2025
31AQI
10th April 2025
39AQI
11th April 2025
46AQI
12th April 2025
49AQI
13th April 2025
38AQI
14th April 2025
28AQI
15th April 2025
14AQI
16th April 2025
16AQI
17th April 2025
29AQI
18th April 2025
50AQI
19th April 2025
32AQI
20th April 2025
25AQI
21st April 2025
15AQI
22nd April 2025
20AQI
23rd April 2025
33AQI
24th April 2025
37AQI
25th April 2025
19AQI
26th April 2025
15AQI
27th April 2025
26AQI
28th April 2025
31AQI
29th April 2025
27AQI
30th April 2025
15AQI
1st May 2025
22AQI
2nd May 2025
20AQI
3rd May 2025
14AQI
4th May 2025
18AQI
5th May 2025
22AQI
6th May 2025
31AQI
7th May 2025
29AQI
8th May 2025
15AQI
9th May 2025
19AQI
10th May 2025
25AQI
11th May 2025
18AQI
12th May 2025
30AQI
13th May 2025
27AQI
14th May 2025
26AQI
15th May 2025
38AQI
16th May 2025
31AQI
17th May 2025
17AQI
18th May 2025
17AQI
19th May 2025
14AQI
20th May 2025
18AQI
21st May 2025
17AQI
22nd May 2025
14AQI
23rd May 2025
14AQI
24th May 2025
15AQI
25th May 2025
17AQI
26th May 2025
27AQI
27th May 2025
21AQI
28th May 2025
27AQI
29th May 2025
28AQI
30th May 2025
43AQI
31st May 2025
32AQI
1st June 2025
23AQI
2nd June 2025
32AQI
3rd June 2025
52AQI
4th June 2025
85AQI
5th June 2025
101AQI
6th June 2025
79AQI
7th June 2025
69AQI
8th June 2025
72AQI
9th June 2025
73AQI
10th June 2025
64AQI
11th June 2025
74AQI
12th June 2025
81AQI
13th June 2025
45AQI
14th June 2025
34AQI
15th June 2025
38AQI
16th June 2025
49AQI
17th June 2025
47AQI
18th June 2025
32AQI
19th June 2025
30AQI
20th June 2025
37AQI
21st June 2025
37AQI
22nd June 2025
38AQI
23rd June 2025
54AQI
24th June 2025
28AQI
25th June 2025
32AQI
26th June 2025
35AQI
27th June 2025
28AQI
28th June 2025
22AQI
29th June 2025
27AQI
30th June 2025
27AQI
1st July 2025
30AQI
2nd July 2025
50AQI
3rd July 2025
42AQI
4th July 2025
41AQI
5th July 2025
67AQI
6th July 2025
38AQI
7th July 2025
48AQI
8th July 2025
55AQI
9th July 2025
50AQI
10th July 2025
41AQI
11th July 2025
36AQI
12th July 2025
28AQI
13th July 2025
73AQI
14th July 2025
95AQI
15th July 2025
71AQI
16th July 2025
58AQI
17th July 2025
22AQI
18th July 2025
19AQI
19th July 2025
29AQI
20th July 2025
29AQI
21st July 2025
91AQI
22nd July 2025
61AQI
23rd July 2025
60AQI
24th July 2025
51AQI
25th July 2025
32AQI
26th July 2025
79AQI
27th July 2025
32AQI
28th July 2025
31AQI
29th July 2025
38AQI
30th July 2025
50AQI
31st July 2025
153AQI
1st August 2025
104AQI
2nd August 2025
115AQI
3rd August 2025
127AQI
4th August 2025
114AQI
5th August 2025
103AQI
6th August 2025
93AQI
7th August 2025
66AQI
8th August 2025
54AQI
9th August 2025
53AQI
10th August 2025
33AQI
11th August 2025
37AQI
12th August 2025
32AQI
13th August 2025
52AQI
14th August 2025
66AQI
15th August 2025
71AQI
16th August 2025
57AQI
17th August 2025
28AQI
18th August 2025
28AQI
19th August 2025
25AQI
20th August 2025
17AQI
21st August 2025
18AQI
22nd August 2025
27AQI
23rd August 2025
31AQI
24th August 2025
19AQI
25th August 2025
17AQI
26th August 2025
24AQI
27th August 2025
30AQI
28th August 2025
30AQI
29th August 2025
17AQI
30th August 2025
18AQI
31st August 2025
1st September 2025
2nd September 2025
3rd September 2025
4th September 2025
5th September 2025
6th September 2025
7th September 2025
8th September 2025
9th September 2025
10th September 2025
11th September 2025
12th September 2025
13th September 2025
14th September 2025
15th September 2025
16th September 2025
17th September 2025
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

32AQI

35AQI

26AQI

27AQI

23AQI

48AQI

52AQI

50AQI


No. of days

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

202537AQI

30
1
27
1
30
1
30
31
19
10
1
19
11
1
17
8
5
203
32
6
1

Highest AQI recorded in

July

52AQI


Lowest AQI recorded in

May

23AQI


202432AQI

28
3
23
6
29
2
30
31
29
31
29
2
30
29
2
29
1
29
2
347
18

Highest AQI recorded in

January

38AQI


Lowest AQI recorded in

November

29AQI


202342AQI

18
13
22
6
25
6
25
5
27
4
6
20
1
2
1
21
9
1
21
10
30
29
2
26
3
28
3
278
81
2
2
1

Highest AQI recorded in

June

82AQI


Lowest AQI recorded in

October

29AQI


202239AQI

19
12
12
9
25
6
24
1
27
4
28
2
23
1
28
1
25
6
21
9
21
10
254
60

Highest AQI recorded in

January

49AQI


Lowest AQI recorded in

September

31AQI


202141AQI

17
13
15
13
26
5
24
6
28
3
29
1
16
15
24
7
30
29
2
26
4
23
8
287
77

Highest AQI recorded in

February

52AQI


Lowest AQI recorded in

September

32AQI


202036AQI

11
2
17
3
18
26
4
27
4
31
27
3
31
23
7
22
9
233
32

Highest AQI recorded in

December

41AQI


Lowest AQI recorded in

September

31AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
42AQI
Least Polluted Year Recorded
2024(Avg.)
32AQI


Greendale's annual 2025 AQI (37) shows an average percentage change of -2.6% (improved AQI) compared to previous years: 2020 (36), 2021 (41), 2022 (39), 2023 (42), 2024 (32).