Arnold, Missouri, 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
Arnold, Missouri, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
100AQILowest AQI recorded on
30th Aug 2021
20AQISame Day Analysis (9th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 43 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 9th Aug - 10th Aug 2025
Arnold, Missouri, United States
AQI
Day
Night
.
5 AM9th Aug 2025
8 PM
4 AM10th Aug 2025
Day time
Avg. Highest Time
3PM9th Aug
48AQI
Avg. Lowest Time
12PM9th Aug
38AQI
Night time
Avg. Highest Time
11PM9th Aug
44AQI
Avg. Lowest Time
10PM9th Aug
34AQI
In the last 24 hours,
Arnold's AQI reached its highest point of 48 at 3 PM during the Day, while the lowest point, undefined, was recorded at 4 AM during the Night between 9th Aug and 10th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Arnold, Missouri, United States
JulAug
11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th
Day
Night
11th Jul 2025315 AMAQI
11th Jul 2025306 AMAQI
11th Jul 2025367 AMAQI
11th Jul 2025318 AMAQI
11th Jul 2025359 AMAQI
11th Jul 20252710 AMAQI
11th Jul 20253111 AMAQI
11th Jul 20253112 PMAQI
11th Jul 2025381 PMAQI
11th Jul 2025402 PMAQI
11th Jul 2025373 PMAQI
11th Jul 2025384 PMAQI
11th Jul 2025385 PMAQI
11th Jul 2025386 PMAQI
11th Jul 2025377 PMAQI
11th Jul 2025398 PMAQI
11th Jul 2025469 PMAQI
11th Jul 20254810 PMAQI
11th Jul 20254611 PMAQI
12th Jul 20254612 AMAQI
12th Jul 2025451 AMAQI
12th Jul 2025432 AMAQI
12th Jul 2025423 AMAQI
12th Jul 2025344 AMAQI
29°C22/37°C
12th Jul 2025215 AMAQI
12th Jul 2025246 AMAQI
12th Jul 2025347 AMAQI
12th Jul 2025288 AMAQI
12th Jul 2025289 AMAQI
12th Jul 20252810 AMAQI
12th Jul 20253511 AMAQI
12th Jul 20252812 PMAQI
12th Jul 2025441 PMAQI
12th Jul 2025382 PMAQI
12th Jul 2025373 PMAQI
12th Jul 2025334 PMAQI
12th Jul 2025325 PMAQI
12th Jul 2025336 PMAQI
12th Jul 2025347 PMAQI
12th Jul 2025348 PMAQI
12th Jul 2025349 PMAQI
12th Jul 20253310 PMAQI
12th Jul 20253411 PMAQI
13th Jul 20253812 AMAQI
13th Jul 2025471 AMAQI
13th Jul 2025572 AMAQI
13th Jul 2025573 AMAQI
13th Jul 2025514 AMAQI
28°C24/33°C
13th Jul 2025485 AMAQI
13th Jul 2025366 AMAQI
13th Jul 2025327 AMAQI
13th Jul 2025378 AMAQI
13th Jul 2025379 AMAQI
13th Jul 20254110 AMAQI
13th Jul 20254211 AMAQI
13th Jul 20254012 PMAQI
13th Jul 2025331 PMAQI
13th Jul 2025322 PMAQI
13th Jul 2025393 PMAQI
13th Jul 2025384 PMAQI
13th Jul 2025365 PMAQI
13th Jul 2025396 PMAQI
13th Jul 2025397 PMAQI
13th Jul 2025368 PMAQI
13th Jul 2025359 PMAQI
13th Jul 20253510 PMAQI
13th Jul 20253411 PMAQI
14th Jul 20253612 AMAQI
14th Jul 2025301 AMAQI
14th Jul 2025252 AMAQI
14th Jul 2025253 AMAQI
14th Jul 2025264 AMAQI
25°C22/30°C
14th Jul 2025225 AMAQI
14th Jul 2025236 AMAQI
14th Jul 2025247 AMAQI
14th Jul 2025248 AMAQI
14th Jul 2025389 AMAQI
14th Jul 20252510 AMAQI
14th Jul 20253211 AMAQI
14th Jul 20253212 PMAQI
14th Jul 2025301 PMAQI
14th Jul 2025322 PMAQI
14th Jul 2025303 PMAQI
14th Jul 2025284 PMAQI
14th Jul 2025295 PMAQI
14th Jul 2025346 PMAQI
14th Jul 2025327 PMAQI
14th Jul 2025298 PMAQI
14th Jul 2025349 PMAQI
14th Jul 20253910 PMAQI
14th Jul 20253711 PMAQI
15th Jul 20253412 AMAQI
15th Jul 2025321 AMAQI
15th Jul 2025282 AMAQI
15th Jul 2025283 AMAQI
15th Jul 2025274 AMAQI
25°C23/29°C
15th Jul 2025285 AMAQI
15th Jul 2025196 AMAQI
15th Jul 2025287 AMAQI
15th Jul 2025268 AMAQI
15th Jul 2025399 AMAQI
15th Jul 20253510 AMAQI
15th Jul 20253011 AMAQI
15th Jul 20253212 PMAQI
15th Jul 2025311 PMAQI
15th Jul 2025322 PMAQI
15th Jul 2025323 PMAQI
15th Jul 2025314 PMAQI
15th Jul 2025285 PMAQI
15th Jul 2025306 PMAQI
15th Jul 2025307 PMAQI
15th Jul 2025368 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20253610 PMAQI
15th Jul 20253111 PMAQI
16th Jul 20253012 AMAQI
16th Jul 2025291 AMAQI
16th Jul 2025222 AMAQI
16th Jul 2025233 AMAQI
16th Jul 2025224 AMAQI
27°C23/31°C
16th Jul 2025245 AMAQI
16th Jul 2025216 AMAQI
16th Jul 2025207 AMAQI
16th Jul 2025218 AMAQI
16th Jul 2025209 AMAQI
16th Jul 20252310 AMAQI
16th Jul 20252311 AMAQI
16th Jul 20252412 PMAQI
16th Jul 2025271 PMAQI
16th Jul 2025322 PMAQI
16th Jul 2025323 PMAQI
16th Jul 2025334 PMAQI
16th Jul 2025345 PMAQI
16th Jul 2025306 PMAQI
16th Jul 2025287 PMAQI
16th Jul 2025278 PMAQI
16th Jul 2025279 PMAQI
16th Jul 20253010 PMAQI
16th Jul 20253311 PMAQI
17th Jul 20252712 AMAQI
17th Jul 2025281 AMAQI
17th Jul 2025292 AMAQI
17th Jul 2025283 AMAQI
17th Jul 2025264 AMAQI
29°C22/38°C
17th Jul 2025245 AMAQI
17th Jul 2025246 AMAQI
17th Jul 2025307 AMAQI
17th Jul 2025348 AMAQI
17th Jul 2025259 AMAQI
17th Jul 20252510 AMAQI
17th Jul 20252711 AMAQI
17th Jul 20254112 PMAQI
17th Jul 2025291 PMAQI
17th Jul 2025302 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025354 PMAQI
17th Jul 2025315 PMAQI
17th Jul 2025326 PMAQI
17th Jul 2025327 PMAQI
17th Jul 2025328 PMAQI
17th Jul 2025309 PMAQI
17th Jul 20252410 PMAQI
17th Jul 20252611 PMAQI
18th Jul 20252612 AMAQI
18th Jul 2025251 AMAQI
18th Jul 2025162 AMAQI
18th Jul 2025173 AMAQI
18th Jul 2025174 AMAQI
28°C24/34°C
18th Jul 2025175 AMAQI
18th Jul 2025176 AMAQI
18th Jul 2025187 AMAQI
18th Jul 2025248 AMAQI
18th Jul 2025209 AMAQI
18th Jul 20252010 AMAQI
18th Jul 20252611 AMAQI
18th Jul 20252212 PMAQI
18th Jul 2025231 PMAQI
18th Jul 2025332 PMAQI
18th Jul 2025283 PMAQI
18th Jul 2025334 PMAQI
18th Jul 2025345 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025257 PMAQI
18th Jul 2025258 PMAQI
18th Jul 2025329 PMAQI
18th Jul 20253410 PMAQI
18th Jul 20253611 PMAQI
19th Jul 20253412 AMAQI
19th Jul 2025361 AMAQI
19th Jul 2025422 AMAQI
19th Jul 2025413 AMAQI
19th Jul 2025354 AMAQI
26°C23/30°C
19th Jul 2025325 AMAQI
19th Jul 2025306 AMAQI
19th Jul 2025297 AMAQI
19th Jul 2025328 AMAQI
19th Jul 2025359 AMAQI
19th Jul 20253810 AMAQI
19th Jul 20255511 AMAQI
19th Jul 20254412 PMAQI
19th Jul 2025491 PMAQI
19th Jul 2025402 PMAQI
19th Jul 2025433 PMAQI
19th Jul 2025444 PMAQI
19th Jul 2025385 PMAQI
19th Jul 2025386 PMAQI
19th Jul 2025407 PMAQI
19th Jul 2025438 PMAQI
19th Jul 2025469 PMAQI
19th Jul 20254210 PMAQI
19th Jul 20254611 PMAQI
20th Jul 20254812 AMAQI
20th Jul 2025461 AMAQI
20th Jul 2025602 AMAQI
20th Jul 2025573 AMAQI
20th Jul 2025544 AMAQI
28°C23/35°C
20th Jul 2025495 AMAQI
20th Jul 2025506 AMAQI
20th Jul 2025547 AMAQI
20th Jul 2025538 AMAQI
20th Jul 2025529 AMAQI
20th Jul 20255310 AMAQI
20th Jul 20254211 AMAQI
20th Jul 20255612 PMAQI
20th Jul 2025501 PMAQI
20th Jul 2025492 PMAQI
20th Jul 2025523 PMAQI
20th Jul 2025514 PMAQI
20th Jul 2025525 PMAQI
20th Jul 2025506 PMAQI
20th Jul 2025517 PMAQI
20th Jul 2025528 PMAQI
20th Jul 2025489 PMAQI
20th Jul 20254810 PMAQI
20th Jul 20254811 PMAQI
21st Jul 20254812 AMAQI
21st Jul 2025471 AMAQI
21st Jul 2025432 AMAQI
21st Jul 2025443 AMAQI
21st Jul 2025394 AMAQI
31°C25/38°C
21st Jul 2025185 AMAQI
21st Jul 2025206 AMAQI
21st Jul 2025267 AMAQI
21st Jul 2025258 AMAQI
21st Jul 2025249 AMAQI
21st Jul 20252410 AMAQI
21st Jul 20252811 AMAQI
21st Jul 20252412 PMAQI
21st Jul 2025241 PMAQI
21st Jul 2025272 PMAQI
21st Jul 2025293 PMAQI
21st Jul 2025284 PMAQI
21st Jul 2025275 PMAQI
21st Jul 2025296 PMAQI
21st Jul 2025327 PMAQI
21st Jul 2025348 PMAQI
21st Jul 2025439 PMAQI
21st Jul 20254310 PMAQI
21st Jul 20253511 PMAQI
22nd Jul 20253612 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025502 AMAQI
22nd Jul 2025463 AMAQI
22nd Jul 2025384 AMAQI
26°C22/31°C
22nd Jul 2025325 AMAQI
22nd Jul 2025526 AMAQI
22nd Jul 2025417 AMAQI
22nd Jul 2025408 AMAQI
22nd Jul 2025479 AMAQI
22nd Jul 20254110 AMAQI
22nd Jul 20255411 AMAQI
22nd Jul 20255112 PMAQI
22nd Jul 2025451 PMAQI
22nd Jul 2025522 PMAQI
22nd Jul 2025523 PMAQI
22nd Jul 2025514 PMAQI
22nd Jul 2025495 PMAQI
22nd Jul 2025526 PMAQI
22nd Jul 2025487 PMAQI
22nd Jul 2025478 PMAQI
22nd Jul 2025449 PMAQI
22nd Jul 20254010 PMAQI
22nd Jul 20254711 PMAQI
23rd Jul 20254812 AMAQI
23rd Jul 2025491 AMAQI
23rd Jul 2025422 AMAQI
23rd Jul 2025423 AMAQI
23rd Jul 2025464 AMAQI
28°C23/36°C
23rd Jul 2025555 AMAQI
23rd Jul 2025546 AMAQI
23rd Jul 2025537 AMAQI
23rd Jul 2025538 AMAQI
23rd Jul 2025569 AMAQI
23rd Jul 20256010 AMAQI
23rd Jul 20256011 AMAQI
23rd Jul 20255812 PMAQI
23rd Jul 2025601 PMAQI
23rd Jul 2025592 PMAQI
23rd Jul 2025563 PMAQI
23rd Jul 2025554 PMAQI
23rd Jul 2025555 PMAQI
23rd Jul 2025536 PMAQI
23rd Jul 2025537 PMAQI
23rd Jul 2025548 PMAQI
23rd Jul 2025589 PMAQI
23rd Jul 20256010 PMAQI
23rd Jul 20255611 PMAQI
24th Jul 20255512 AMAQI
24th Jul 2025541 AMAQI
24th Jul 2025552 AMAQI
24th Jul 2025553 AMAQI
24th Jul 2025554 AMAQI
31°C25/38°C
24th Jul 2025545 AMAQI
24th Jul 2025556 AMAQI
24th Jul 2025547 AMAQI
24th Jul 2025548 AMAQI
24th Jul 2025509 AMAQI
24th Jul 20253910 AMAQI
24th Jul 20254211 AMAQI
24th Jul 20253912 PMAQI
24th Jul 2025471 PMAQI
24th Jul 2025482 PMAQI
24th Jul 2025513 PMAQI
24th Jul 2025524 PMAQI
24th Jul 2025525 PMAQI
24th Jul 2025526 PMAQI
24th Jul 2025547 PMAQI
24th Jul 2025538 PMAQI
24th Jul 2025539 PMAQI
24th Jul 20255410 PMAQI
24th Jul 20255411 PMAQI
25th Jul 20255312 AMAQI
25th Jul 2025511 AMAQI
25th Jul 2025342 AMAQI
25th Jul 2025363 AMAQI
25th Jul 2025364 AMAQI
31°C24/38°C
25th Jul 2025325 AMAQI
25th Jul 2025306 AMAQI
25th Jul 2025327 AMAQI
25th Jul 2025318 AMAQI
25th Jul 2025259 AMAQI
25th Jul 20252810 AMAQI
25th Jul 20253411 AMAQI
25th Jul 20254112 PMAQI
25th Jul 2025381 PMAQI
25th Jul 2025472 PMAQI
25th Jul 2025453 PMAQI
25th Jul 2025424 PMAQI
25th Jul 2025465 PMAQI
25th Jul 2025456 PMAQI
25th Jul 2025447 PMAQI
25th Jul 2025408 PMAQI
25th Jul 2025399 PMAQI
25th Jul 20254210 PMAQI
25th Jul 20253811 PMAQI
26th Jul 20254012 AMAQI
26th Jul 2025401 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025363 AMAQI
26th Jul 2025344 AMAQI
30°C25/36°C
26th Jul 2025315 AMAQI
26th Jul 2025436 AMAQI
26th Jul 2025387 AMAQI
26th Jul 2025388 AMAQI
26th Jul 2025399 AMAQI
26th Jul 20255310 AMAQI
26th Jul 20254011 AMAQI
26th Jul 20253612 PMAQI
26th Jul 2025361 PMAQI
26th Jul 2025322 PMAQI
26th Jul 2025373 PMAQI
26th Jul 2025354 PMAQI
26th Jul 2025335 PMAQI
26th Jul 2025346 PMAQI
26th Jul 2025387 PMAQI
26th Jul 2025388 PMAQI
26th Jul 2025389 PMAQI
26th Jul 20253610 PMAQI
26th Jul 20253711 PMAQI
27th Jul 20253512 AMAQI
27th Jul 2025311 AMAQI
27th Jul 2025182 AMAQI
27th Jul 2025203 AMAQI
27th Jul 2025244 AMAQI
30°C25/37°C
27th Jul 2025195 AMAQI
27th Jul 2025166 AMAQI
27th Jul 2025187 AMAQI
27th Jul 2025298 AMAQI
27th Jul 2025259 AMAQI
27th Jul 20251810 AMAQI
27th Jul 20251811 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025311 PMAQI
27th Jul 2025312 PMAQI
27th Jul 2025273 PMAQI
27th Jul 2025274 PMAQI
27th Jul 2025285 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025287 PMAQI
27th Jul 2025288 PMAQI
27th Jul 2025329 PMAQI
27th Jul 20252710 PMAQI
27th Jul 20252811 PMAQI
28th Jul 20252712 AMAQI
28th Jul 2025251 AMAQI
28th Jul 2025192 AMAQI
28th Jul 2025183 AMAQI
28th Jul 2025214 AMAQI
30°C25/35°C
28th Jul 2025235 AMAQI
28th Jul 2025226 AMAQI
28th Jul 2025307 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025379 AMAQI
28th Jul 20253510 AMAQI
28th Jul 20253511 AMAQI
28th Jul 20253512 PMAQI
28th Jul 2025301 PMAQI
28th Jul 2025372 PMAQI
28th Jul 2025363 PMAQI
28th Jul 2025364 PMAQI
28th Jul 2025325 PMAQI
28th Jul 2025366 PMAQI
28th Jul 2025347 PMAQI
28th Jul 2025318 PMAQI
28th Jul 2025349 PMAQI
28th Jul 20254410 PMAQI
28th Jul 20253811 PMAQI
29th Jul 20253412 AMAQI
29th Jul 2025401 AMAQI
29th Jul 2025332 AMAQI
29th Jul 2025343 AMAQI
29th Jul 2025344 AMAQI
31°C26/37°C
29th Jul 2025385 AMAQI
29th Jul 2025406 AMAQI
29th Jul 2025387 AMAQI
29th Jul 2025358 AMAQI
29th Jul 2025429 AMAQI
29th Jul 20255710 AMAQI
29th Jul 20254411 AMAQI
29th Jul 20253612 PMAQI
29th Jul 2025331 PMAQI
29th Jul 2025362 PMAQI
29th Jul 2025383 PMAQI
29th Jul 2025374 PMAQI
29th Jul 2025405 PMAQI
29th Jul 2025426 PMAQI
29th Jul 2025417 PMAQI
29th Jul 2025408 PMAQI
29th Jul 2025409 PMAQI
29th Jul 20254210 PMAQI
29th Jul 20254311 PMAQI
30th Jul 20254412 AMAQI
30th Jul 2025431 AMAQI
30th Jul 2025372 AMAQI
30th Jul 2025363 AMAQI
30th Jul 2025384 AMAQI
32°C26/39°C
30th Jul 2025365 AMAQI
30th Jul 2025326 AMAQI
30th Jul 2025367 AMAQI
30th Jul 2025388 AMAQI
30th Jul 2025409 AMAQI
30th Jul 20253810 AMAQI
30th Jul 20253311 AMAQI
30th Jul 20254012 PMAQI
30th Jul 2025401 PMAQI
30th Jul 2025392 PMAQI
30th Jul 2025393 PMAQI
30th Jul 2025394 PMAQI
30th Jul 2025395 PMAQI
30th Jul 2025396 PMAQI
30th Jul 2025397 PMAQI
30th Jul 2025398 PMAQI
30th Jul 2025429 PMAQI
30th Jul 20254110 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20253812 AMAQI
31st Jul 2025371 AMAQI
31st Jul 2025242 AMAQI
31st Jul 2025253 AMAQI
31st Jul 2025274 AMAQI
30°C25/38°C
31st Jul 2025275 AMAQI
31st Jul 2025266 AMAQI
31st Jul 2025307 AMAQI
31st Jul 2025288 AMAQI
31st Jul 2025259 AMAQI
31st Jul 20252510 AMAQI
31st Jul 20252711 AMAQI
31st Jul 20252712 PMAQI
31st Jul 2025261 PMAQI
31st Jul 2025262 PMAQI
31st Jul 2025263 PMAQI
31st Jul 2025344 PMAQI
31st Jul 2025405 PMAQI
31st Jul 2025416 PMAQI
31st Jul 2025267 PMAQI
31st Jul 2025438 PMAQI
31st Jul 2025659 PMAQI
31st Jul 20258610 PMAQI
31st Jul 20259711 PMAQI
1st Aug 202510912 AMAQI
1st Aug 20251111 AMAQI
1st Aug 20251092 AMAQI
1st Aug 2025833 AMAQI
1st Aug 2025894 AMAQI
26°C22/29°C
1st Aug 20251255 AMAQI
1st Aug 20251206 AMAQI
1st Aug 20251317 AMAQI
1st Aug 20251318 AMAQI
1st Aug 20251269 AMAQI
1st Aug 202512010 AMAQI
1st Aug 202511411 AMAQI
1st Aug 202510212 PMAQI
1st Aug 2025891 PMAQI
1st Aug 2025872 PMAQI
1st Aug 2025823 PMAQI
1st Aug 2025784 PMAQI
1st Aug 2025835 PMAQI
1st Aug 2025826 PMAQI
1st Aug 20251027 PMAQI
1st Aug 2025928 PMAQI
1st Aug 2025869 PMAQI
1st Aug 20258710 PMAQI
1st Aug 20258811 PMAQI
2nd Aug 20259012 AMAQI
2nd Aug 2025901 AMAQI
2nd Aug 2025892 AMAQI
2nd Aug 2025933 AMAQI
2nd Aug 2025944 AMAQI
24°C18/30°C
2nd Aug 2025925 AMAQI
2nd Aug 2025896 AMAQI
2nd Aug 2025877 AMAQI
2nd Aug 2025888 AMAQI
2nd Aug 2025869 AMAQI
2nd Aug 20258010 AMAQI
2nd Aug 20257011 AMAQI
2nd Aug 20256412 PMAQI
2nd Aug 2025591 PMAQI
2nd Aug 2025522 PMAQI
2nd Aug 2025443 PMAQI
2nd Aug 2025494 PMAQI
2nd Aug 2025395 PMAQI
2nd Aug 2025466 PMAQI
2nd Aug 2025737 PMAQI
2nd Aug 2025638 PMAQI
2nd Aug 2025529 PMAQI
2nd Aug 20255310 PMAQI
2nd Aug 20255511 PMAQI
3rd Aug 20255512 AMAQI
3rd Aug 2025521 AMAQI
3rd Aug 2025542 AMAQI
3rd Aug 2025643 AMAQI
3rd Aug 2025664 AMAQI
22°C16/27°C
3rd Aug 2025565 AMAQI
3rd Aug 2025566 AMAQI
3rd Aug 2025557 AMAQI
3rd Aug 2025548 AMAQI
3rd Aug 2025549 AMAQI
3rd Aug 20254810 AMAQI
3rd Aug 20253811 AMAQI
3rd Aug 20252512 PMAQI
3rd Aug 2025311 PMAQI
3rd Aug 2025352 PMAQI
3rd Aug 2025343 PMAQI
3rd Aug 2025404 PMAQI
3rd Aug 2025425 PMAQI
3rd Aug 2025386 PMAQI
3rd Aug 2025517 PMAQI
3rd Aug 2025468 PMAQI
3rd Aug 2025389 PMAQI
3rd Aug 20254010 PMAQI
3rd Aug 20254211 PMAQI
4th Aug 20254812 AMAQI
4th Aug 2025461 AMAQI
4th Aug 2025402 AMAQI
4th Aug 2025463 AMAQI
4th Aug 2025524 AMAQI
22°C16/27°C
4th Aug 2025465 AMAQI
4th Aug 2025446 AMAQI
4th Aug 2025387 AMAQI
4th Aug 2025368 AMAQI
4th Aug 2025409 AMAQI
4th Aug 20254010 AMAQI
4th Aug 20253011 AMAQI
4th Aug 20253212 PMAQI
4th Aug 2025341 PMAQI
4th Aug 2025462 PMAQI
4th Aug 2025503 PMAQI
4th Aug 2025484 PMAQI
4th Aug 2025465 PMAQI
4th Aug 2025506 PMAQI
4th Aug 2025427 PMAQI
4th Aug 2025468 PMAQI
4th Aug 2025449 PMAQI
4th Aug 20253810 PMAQI
4th Aug 20252811 PMAQI
5th Aug 20252812 AMAQI
5th Aug 2025281 AMAQI
5th Aug 2025302 AMAQI
5th Aug 2025323 AMAQI
5th Aug 2025324 AMAQI
24°C19/31°C
5th Aug 2025255 AMAQI
5th Aug 2025256 AMAQI
5th Aug 2025307 AMAQI
5th Aug 2025348 AMAQI
5th Aug 2025369 AMAQI
5th Aug 20254010 AMAQI
5th Aug 20253811 AMAQI
5th Aug 20254112 PMAQI
5th Aug 2025491 PMAQI
5th Aug 2025512 PMAQI
5th Aug 2025503 PMAQI
5th Aug 2025524 PMAQI
5th Aug 2025535 PMAQI
5th Aug 2025406 PMAQI
5th Aug 2025347 PMAQI
5th Aug 2025368 PMAQI
5th Aug 2025319 PMAQI
5th Aug 20253610 PMAQI
5th Aug 20253411 PMAQI
6th Aug 20253612 AMAQI
6th Aug 2025361 AMAQI
6th Aug 2025352 AMAQI
6th Aug 2025363 AMAQI
6th Aug 2025404 AMAQI
24°C20/32°C
6th Aug 2025405 AMAQI
6th Aug 2025446 AMAQI
6th Aug 2025487 AMAQI
6th Aug 2025488 AMAQI
6th Aug 2025469 AMAQI
6th Aug 20254510 AMAQI
6th Aug 20255011 AMAQI
6th Aug 20254412 PMAQI
6th Aug 2025411 PMAQI
6th Aug 2025412 PMAQI
6th Aug 2025473 PMAQI
6th Aug 2025444 PMAQI
6th Aug 2025465 PMAQI
6th Aug 2025476 PMAQI
6th Aug 2025407 PMAQI
6th Aug 2025458 PMAQI
6th Aug 2025449 PMAQI
6th Aug 20253410 PMAQI
6th Aug 20254311 PMAQI
7th Aug 20254512 AMAQI
7th Aug 2025441 AMAQI
7th Aug 2025522 AMAQI
7th Aug 2025523 AMAQI
7th Aug 2025514 AMAQI
27°C20/34°C
7th Aug 2025485 AMAQI
7th Aug 2025486 AMAQI
7th Aug 2025467 AMAQI
7th Aug 2025448 AMAQI
7th Aug 2025469 AMAQI
7th Aug 20254310 AMAQI
7th Aug 20254811 AMAQI
7th Aug 20254512 PMAQI
7th Aug 2025441 PMAQI
7th Aug 2025502 PMAQI
7th Aug 2025513 PMAQI
7th Aug 2025524 PMAQI
7th Aug 2025535 PMAQI
7th Aug 2025506 PMAQI
7th Aug 2025517 PMAQI
7th Aug 2025478 PMAQI
7th Aug 2025429 PMAQI
7th Aug 20254510 PMAQI
7th Aug 20255111 PMAQI
8th Aug 20255212 AMAQI
8th Aug 2025481 AMAQI
8th Aug 2025382 AMAQI
8th Aug 2025383 AMAQI
8th Aug 2025414 AMAQI
28°C21/34°C
8th Aug 2025435 AMAQI
8th Aug 2025526 AMAQI
8th Aug 2025487 AMAQI
8th Aug 2025508 AMAQI
8th Aug 2025479 AMAQI
8th Aug 20254010 AMAQI
8th Aug 20253911 AMAQI
8th Aug 20254312 PMAQI
8th Aug 2025481 PMAQI
8th Aug 2025482 PMAQI
8th Aug 2025463 PMAQI
8th Aug 2025444 PMAQI
8th Aug 2025425 PMAQI
8th Aug 2025456 PMAQI
8th Aug 2025467 PMAQI
8th Aug 2025468 PMAQI
8th Aug 2025439 PMAQI
8th Aug 20254410 PMAQI
8th Aug 20254411 PMAQI
9th Aug 20254412 AMAQI
9th Aug 2025431 AMAQI
9th Aug 2025462 AMAQI
9th Aug 2025483 AMAQI
9th Aug 2025454 AMAQI
29°C23/37°C
9th Aug 2025405 AMAQI
9th Aug 2025426 AMAQI
9th Aug 2025387 AMAQI
9th Aug 2025388 AMAQI
9th Aug 2025449 AMAQI
9th Aug 20254410 AMAQI
9th Aug 20254211 AMAQI
9th Aug 20253812 PMAQI
9th Aug 2025441 PMAQI
9th Aug 2025472 PMAQI
9th Aug 2025483 PMAQI
9th Aug 2025464 PMAQI
9th Aug 2025465 PMAQI
9th Aug 2025486 PMAQI
9th Aug 2025467 PMAQI
9th Aug 2025448 PMAQI
9th Aug 2025399 PMAQI
9th Aug 20253410 PMAQI
9th Aug 20254411 PMAQI
10th Aug 20254112 AMAQI
29°C23/37°C
5 AM
12 PM
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
41AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 6 AM
39AQI
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. 41), while the lowest AQI was between 5 AM to 6 AM (Avg. 39).
Night time
Avg. Highest Time
12 AM - 11 PM
43AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
43AQI
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. 43), while the lowest AQI was between 12 AM to 11 PM (Avg. 43).
2025 Days Vs Air Quality
Arnold, Missouri, United States
2025
90%
199
10%
21
0.4%
1
Total number of days with different AQI categories in last 222 days in 2025 (143 days remaining)
Good
199 DaysModerate
21 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 222 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Arnold, Missouri, United States
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
22AQI
22AQI
2nd January 2025
26AQI
26AQI
3rd January 2025
23AQI
23AQI
4th January 2025
20AQI
20AQI
5th January 2025
24AQI
24AQI
6th January 2025
20AQI
20AQI
7th January 2025
30AQI
30AQI
8th January 2025
44AQI
44AQI
9th January 2025
51AQI
51AQI
10th January 2025
51AQI
51AQI
11th January 2025
35AQI
35AQI
12th January 2025
29AQI
29AQI
13th January 2025
22AQI
22AQI
14th January 2025
25AQI
25AQI
15th January 2025
32AQI
32AQI
16th January 2025
28AQI
28AQI
17th January 2025
26AQI
26AQI
18th January 2025
20AQI
20AQI
19th January 2025
18AQI
18AQI
20th January 2025
21AQI
21AQI
21st January 2025
23AQI
23AQI
22nd January 2025
25AQI
25AQI
23rd January 2025
25AQI
25AQI
24th January 2025
27AQI
27AQI
25th January 2025
31AQI
31AQI
26th January 2025
26AQI
26AQI
27th January 2025
27AQI
27AQI
28th January 2025
22AQI
22AQI
29th January 2025
22AQI
22AQI
30th January 2025
32AQI
32AQI
31st January 2025
20AQI
20AQI
1st February 2025
29AQI
29AQI
2nd February 2025
25AQI
25AQI
3rd February 2025
27AQI
27AQI
4th February 2025
26AQI
26AQI
5th February 2025
25AQI
25AQI
6th February 2025
24AQI
24AQI
7th February 2025
26AQI
26AQI
8th February 2025
33AQI
33AQI
9th February 2025
35AQI
35AQI
10th February 2025
35AQI
35AQI
11th February 2025
45AQI
45AQI
12th February 2025
51AQI
51AQI
13th February 2025
26AQI
26AQI
14th February 2025
28AQI
28AQI
15th February 2025
26AQI
26AQI
16th February 2025
34AQI
34AQI
17th February 2025
22AQI
22AQI
18th February 2025
23AQI
23AQI
19th February 2025
23AQI
23AQI
20th February 2025
23AQI
23AQI
21st February 2025
42AQI
42AQI
22nd February 2025
41AQI
41AQI
23rd February 2025
40AQI
40AQI
24th February 2025
32AQI
32AQI
25th February 2025
30AQI
30AQI
26th February 2025
29AQI
29AQI
27th February 2025
28AQI
28AQI
28th February 2025
29AQI
29AQI
1st March 2025
27AQI
27AQI
2nd March 2025
31AQI
31AQI
3rd March 2025
34AQI
34AQI
4th March 2025
37AQI
37AQI
5th March 2025
28AQI
28AQI
6th March 2025
28AQI
28AQI
7th March 2025
30AQI
30AQI
8th March 2025
34AQI
34AQI
9th March 2025
47AQI
47AQI
10th March 2025
40AQI
40AQI
11th March 2025
45AQI
45AQI
12th March 2025
53AQI
53AQI
13th March 2025
59AQI
59AQI
14th March 2025
43AQI
43AQI
15th March 2025
110AQI
110AQI
16th March 2025
18AQI
18AQI
17th March 2025
21AQI
21AQI
18th March 2025
26AQI
26AQI
19th March 2025
31AQI
31AQI
20th March 2025
18AQI
18AQI
21st March 2025
32AQI
32AQI
22nd March 2025
23AQI
23AQI
23rd March 2025
25AQI
25AQI
24th March 2025
18AQI
18AQI
25th March 2025
25AQI
25AQI
26th March 2025
36AQI
36AQI
27th March 2025
41AQI
41AQI
28th March 2025
36AQI
36AQI
29th March 2025
31AQI
31AQI
30th March 2025
24AQI
24AQI
31st March 2025
17AQI
17AQI
1st April 2025
28AQI
28AQI
2nd April 2025
31AQI
31AQI
3rd April 2025
27AQI
27AQI
4th April 2025
27AQI
27AQI
5th April 2025
22AQI
22AQI
6th April 2025
16AQI
16AQI
7th April 2025
25AQI
25AQI
8th April 2025
19AQI
19AQI
9th April 2025
24AQI
24AQI
10th April 2025
36AQI
36AQI
11th April 2025
33AQI
33AQI
12th April 2025
44AQI
44AQI
13th April 2025
34AQI
34AQI
14th April 2025
33AQI
33AQI
15th April 2025
20AQI
20AQI
16th April 2025
27AQI
27AQI
17th April 2025
46AQI
46AQI
18th April 2025
51AQI
51AQI
19th April 2025
41AQI
41AQI
20th April 2025
42AQI
42AQI
21st April 2025
24AQI
24AQI
22nd April 2025
33AQI
33AQI
23rd April 2025
40AQI
40AQI
24th April 2025
37AQI
37AQI
25th April 2025
31AQI
31AQI
26th April 2025
26AQI
26AQI
27th April 2025
20AQI
20AQI
28th April 2025
32AQI
32AQI
29th April 2025
25AQI
25AQI
30th April 2025
25AQI
25AQI
1st May 2025
25AQI
25AQI
2nd May 2025
26AQI
26AQI
3rd May 2025
26AQI
26AQI
4th May 2025
21AQI
21AQI
5th May 2025
23AQI
23AQI
6th May 2025
29AQI
29AQI
7th May 2025
26AQI
26AQI
8th May 2025
30AQI
30AQI
9th May 2025
25AQI
25AQI
10th May 2025
34AQI
34AQI
11th May 2025
39AQI
39AQI
12th May 2025
39AQI
39AQI
13th May 2025
28AQI
28AQI
14th May 2025
40AQI
40AQI
15th May 2025
52AQI
52AQI
16th May 2025
44AQI
44AQI
17th May 2025
23AQI
23AQI
18th May 2025
25AQI
25AQI
19th May 2025
27AQI
27AQI
20th May 2025
20AQI
20AQI
21st May 2025
15AQI
15AQI
22nd May 2025
14AQI
14AQI
23rd May 2025
20AQI
20AQI
24th May 2025
28AQI
28AQI
25th May 2025
33AQI
33AQI
26th May 2025
21AQI
21AQI
27th May 2025
27AQI
27AQI
28th May 2025
25AQI
25AQI
29th May 2025
39AQI
39AQI
30th May 2025
32AQI
32AQI
31st May 2025
39AQI
39AQI
1st June 2025
36AQI
36AQI
2nd June 2025
48AQI
48AQI
3rd June 2025
50AQI
50AQI
4th June 2025
48AQI
48AQI
5th June 2025
37AQI
37AQI
6th June 2025
50AQI
50AQI
7th June 2025
56AQI
56AQI
8th June 2025
49AQI
49AQI
9th June 2025
51AQI
51AQI
10th June 2025
58AQI
58AQI
11th June 2025
64AQI
64AQI
12th June 2025
67AQI
67AQI
13th June 2025
45AQI
45AQI
14th June 2025
29AQI
29AQI
15th June 2025
39AQI
39AQI
16th June 2025
34AQI
34AQI
17th June 2025
28AQI
28AQI
18th June 2025
31AQI
31AQI
19th June 2025
23AQI
23AQI
20th June 2025
33AQI
33AQI
21st June 2025
46AQI
46AQI
22nd June 2025
50AQI
50AQI
23rd June 2025
56AQI
56AQI
24th June 2025
50AQI
50AQI
25th June 2025
44AQI
44AQI
26th June 2025
44AQI
44AQI
27th June 2025
30AQI
30AQI
28th June 2025
22AQI
22AQI
29th June 2025
24AQI
24AQI
30th June 2025
26AQI
26AQI
1st July 2025
27AQI
27AQI
2nd July 2025
36AQI
36AQI
3rd July 2025
47AQI
47AQI
4th July 2025
62AQI
62AQI
5th July 2025
91AQI
91AQI
6th July 2025
59AQI
59AQI
7th July 2025
35AQI
35AQI
8th July 2025
39AQI
39AQI
9th July 2025
27AQI
27AQI
10th July 2025
28AQI
28AQI
11th July 2025
35AQI
35AQI
12th July 2025
34AQI
34AQI
13th July 2025
41AQI
41AQI
14th July 2025
30AQI
30AQI
15th July 2025
31AQI
31AQI
16th July 2025
27AQI
27AQI
17th July 2025
29AQI
29AQI
18th July 2025
25AQI
25AQI
19th July 2025
40AQI
40AQI
20th July 2025
51AQI
51AQI
21st July 2025
33AQI
33AQI
22nd July 2025
45AQI
45AQI
23rd July 2025
53AQI
53AQI
24th July 2025
52AQI
52AQI
25th July 2025
39AQI
39AQI
26th July 2025
37AQI
37AQI
27th July 2025
26AQI
26AQI
28th July 2025
30AQI
30AQI
29th July 2025
39AQI
39AQI
30th July 2025
39AQI
39AQI
31st July 2025
38AQI
38AQI
1st August 2025
100AQI
100AQI
2nd August 2025
72AQI
72AQI
3rd August 2025
47AQI
47AQI
4th August 2025
42AQI
42AQI
5th August 2025
36AQI
36AQI
6th August 2025
42AQI
42AQI
7th August 2025
48AQI
48AQI
8th August 2025
44AQI
44AQI
9th August 2025
43AQI
43AQI
27AQI
31AQI
34AQI
31AQI
29AQI
42AQI
40AQI
53AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202534AQI
29
2
27
1
28
2
1
29
1
30
1
24
6
25
6
7
2
199
21
1
Highest AQI recorded in
August53AQI
Lowest AQI recorded in
January27AQI
202433AQI
30
1
24
5
30
1
30
31
30
26
5
26
5
30
28
3
30
30
1
345
21
Highest AQI recorded in
July40AQI
Lowest AQI recorded in
November25AQI
202338AQI
29
2
27
1
30
1
28
2
23
8
9
21
27
4
26
5
26
4
30
1
28
1
31
314
50
Highest AQI recorded in
June56AQI
Lowest AQI recorded in
December26AQI
202237AQI
23
8
21
1
31
17
27
4
23
7
17
6
1
28
1
28
3
27
3
26
5
269
38
Highest AQI recorded in
January48AQI
Lowest AQI recorded in
February28AQI
202136AQI
30
26
2
31
28
2
28
3
24
6
14
16
1
23
8
26
4
31
29
1
23
8
313
50
1
Highest AQI recorded in
July54AQI
Lowest AQI recorded in
November25AQI
202035AQI
1
20
18
26
4
27
3
1
30
1
29
1
28
3
30
24
7
233
19
1
Highest AQI recorded in
June43AQI
Lowest AQI recorded in
November27AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
38AQILeast Polluted Year Recorded
2024(Avg.)
33AQIArnold's annual 2025 AQI (34) shows an average percentage change of -4.7% (improved AQI) compared to previous years: 2020 (35), 2021 (36), 2022 (37), 2023 (38), 2024 (33).
