Vermillion, South Dakota, 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
Vermillion, South Dakota, United States
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
124AQILowest AQI recorded on
18th Aug 2025
16AQISame Day Analysis (15th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 1st highest AQI at 42 of Good air quality on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Vermillion, South Dakota, United States
AQI
Day
Night
.
6 AM14th Aug 2026
8 PM
5 AM15th Aug 2026
Day time
Avg. Highest Time
8AM14th Aug
62AQI
Avg. Lowest Time
7PM14th Aug
26AQI
Night time
Avg. Highest Time
11PM14th Aug
58AQI
Avg. Lowest Time
2AM15th Aug
25AQI
In the last 24 hours,
Vermillion's AQI reached its highest point of 62 at 8 AM during the Day, while the lowest point, 25, was recorded at 2 AM during the Night between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Vermillion, South Dakota, United States
JulAug
17th - 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 - 15th15th
Day
Night
17th Jul 2026436 AMAQI
17th Jul 2026657 AMAQI
17th Jul 2026288 AMAQI
17th Jul 2026279 AMAQI
17th Jul 20264210 AMAQI
17th Jul 20264311 AMAQI
17th Jul 20263912 PMAQI
17th Jul 2026271 PMAQI
17th Jul 2026642 PMAQI
17th Jul 2026503 PMAQI
17th Jul 2026494 PMAQI
17th Jul 2026545 PMAQI
17th Jul 2026466 PMAQI
17th Jul 2026467 PMAQI
17th Jul 2026488 PMAQI
17th Jul 2026609 PMAQI
17th Jul 20264710 PMAQI
17th Jul 20265211 PMAQI
18th Jul 20264512 AMAQI
18th Jul 2026441 AMAQI
18th Jul 2026642 AMAQI
18th Jul 2026633 AMAQI
18th Jul 20261014 AMAQI
18th Jul 20261105 AMAQI
28°C21/36°C
18th Jul 2026976 AMAQI
18th Jul 2026787 AMAQI
18th Jul 2026688 AMAQI
18th Jul 2026629 AMAQI
18th Jul 20265310 AMAQI
18th Jul 20265611 AMAQI
18th Jul 20265912 PMAQI
18th Jul 2026611 PMAQI
18th Jul 2026562 PMAQI
18th Jul 2026563 PMAQI
18th Jul 2026564 PMAQI
18th Jul 2026555 PMAQI
18th Jul 2026546 PMAQI
18th Jul 2026507 PMAQI
18th Jul 2026488 PMAQI
18th Jul 2026469 PMAQI
18th Jul 20265210 PMAQI
18th Jul 20265011 PMAQI
19th Jul 20265112 AMAQI
19th Jul 2026501 AMAQI
19th Jul 2026442 AMAQI
19th Jul 2026453 AMAQI
19th Jul 2026434 AMAQI
19th Jul 2026525 AMAQI
27°C22/33°C
19th Jul 2026506 AMAQI
19th Jul 2026437 AMAQI
19th Jul 2026468 AMAQI
19th Jul 2026489 AMAQI
19th Jul 20264510 AMAQI
19th Jul 20264511 AMAQI
19th Jul 20265212 PMAQI
19th Jul 2026501 PMAQI
19th Jul 2026522 PMAQI
19th Jul 2026493 PMAQI
19th Jul 2026514 PMAQI
19th Jul 2026515 PMAQI
19th Jul 2026486 PMAQI
19th Jul 2026427 PMAQI
19th Jul 2026488 PMAQI
19th Jul 2026469 PMAQI
19th Jul 20264810 PMAQI
19th Jul 20264711 PMAQI
20th Jul 20264612 AMAQI
20th Jul 2026471 AMAQI
20th Jul 2026482 AMAQI
20th Jul 2026463 AMAQI
20th Jul 2026454 AMAQI
20th Jul 2026445 AMAQI
26°C19/34°C
20th Jul 2026476 AMAQI
20th Jul 2026417 AMAQI
20th Jul 2026548 AMAQI
20th Jul 2026419 AMAQI
20th Jul 20265010 AMAQI
20th Jul 20264811 AMAQI
20th Jul 20265112 PMAQI
20th Jul 2026491 PMAQI
20th Jul 2026502 PMAQI
20th Jul 2026483 PMAQI
20th Jul 2026464 PMAQI
20th Jul 2026465 PMAQI
20th Jul 2026526 PMAQI
20th Jul 2026527 PMAQI
20th Jul 2026548 PMAQI
20th Jul 2026539 PMAQI
20th Jul 20264611 PMAQI
21st Jul 20264312 AMAQI
21st Jul 2026471 AMAQI
21st Jul 2026432 AMAQI
21st Jul 2026503 AMAQI
21st Jul 2026454 AMAQI
21st Jul 2026505 AMAQI
30°C24/38°C
21st Jul 2026526 AMAQI
21st Jul 2026537 AMAQI
21st Jul 2026508 AMAQI
21st Jul 2026459 AMAQI
21st Jul 20265210 AMAQI
21st Jul 20265411 AMAQI
21st Jul 20265012 PMAQI
21st Jul 2026451 PMAQI
21st Jul 2026442 PMAQI
21st Jul 2026443 PMAQI
21st Jul 2026414 PMAQI
21st Jul 2026465 PMAQI
21st Jul 2026496 PMAQI
21st Jul 2026497 PMAQI
21st Jul 2026548 PMAQI
21st Jul 2026549 PMAQI
21st Jul 20265410 PMAQI
21st Jul 20265411 PMAQI
22nd Jul 20265712 AMAQI
22nd Jul 2026591 AMAQI
22nd Jul 2026582 AMAQI
22nd Jul 2026603 AMAQI
22nd Jul 2026554 AMAQI
22nd Jul 2026545 AMAQI
23°C19/29°C
22nd Jul 2026546 AMAQI
22nd Jul 2026547 AMAQI
22nd Jul 2026558 AMAQI
22nd Jul 2026549 AMAQI
22nd Jul 20265310 AMAQI
22nd Jul 20265311 AMAQI
22nd Jul 20265612 PMAQI
22nd Jul 2026471 PMAQI
22nd Jul 2026542 PMAQI
22nd Jul 2026423 PMAQI
22nd Jul 2026494 PMAQI
22nd Jul 2026495 PMAQI
22nd Jul 2026506 PMAQI
22nd Jul 2026417 PMAQI
22nd Jul 2026458 PMAQI
22nd Jul 2026459 PMAQI
22nd Jul 20264210 PMAQI
22nd Jul 20264211 PMAQI
23rd Jul 20264012 AMAQI
23rd Jul 2026471 AMAQI
23rd Jul 2026502 AMAQI
23rd Jul 2026423 AMAQI
23rd Jul 2026424 AMAQI
23rd Jul 2026425 AMAQI
20°C14/27°C
23rd Jul 2026416 AMAQI
23rd Jul 2026437 AMAQI
23rd Jul 2026428 AMAQI
23rd Jul 2026739 AMAQI
23rd Jul 20266010 AMAQI
23rd Jul 20263211 AMAQI
23rd Jul 20264312 PMAQI
23rd Jul 2026481 PMAQI
23rd Jul 2026462 PMAQI
23rd Jul 2026463 PMAQI
23rd Jul 2026434 PMAQI
23rd Jul 2026465 PMAQI
23rd Jul 2026496 PMAQI
23rd Jul 2026487 PMAQI
23rd Jul 2026508 PMAQI
23rd Jul 2026499 PMAQI
23rd Jul 20265010 PMAQI
23rd Jul 20264811 PMAQI
24th Jul 20265112 AMAQI
24th Jul 2026471 AMAQI
24th Jul 2026462 AMAQI
24th Jul 2026443 AMAQI
24th Jul 2026484 AMAQI
24th Jul 2026475 AMAQI
21°C13/30°C
24th Jul 2026456 AMAQI
24th Jul 2026467 AMAQI
24th Jul 2026468 AMAQI
24th Jul 2026519 AMAQI
24th Jul 20264710 AMAQI
24th Jul 20264811 AMAQI
24th Jul 20264312 PMAQI
24th Jul 2026441 PMAQI
24th Jul 2026462 PMAQI
24th Jul 2026353 PMAQI
24th Jul 2026414 PMAQI
24th Jul 2026425 PMAQI
24th Jul 2026406 PMAQI
24th Jul 2026437 PMAQI
24th Jul 2026318 PMAQI
24th Jul 2026609 PMAQI
24th Jul 20265210 PMAQI
24th Jul 20264811 PMAQI
25th Jul 20264512 AMAQI
25th Jul 2026431 AMAQI
25th Jul 2026442 AMAQI
25th Jul 2026483 AMAQI
25th Jul 2026504 AMAQI
25th Jul 2026475 AMAQI
21°C19/25°C
25th Jul 2026486 AMAQI
25th Jul 2026527 AMAQI
25th Jul 2026528 AMAQI
25th Jul 2026489 AMAQI
25th Jul 20264710 AMAQI
25th Jul 20265211 AMAQI
25th Jul 20265012 PMAQI
25th Jul 2026471 PMAQI
25th Jul 2026482 PMAQI
25th Jul 2026453 PMAQI
25th Jul 2026454 PMAQI
25th Jul 2026495 PMAQI
25th Jul 2026566 PMAQI
25th Jul 2026527 PMAQI
25th Jul 2026428 PMAQI
25th Jul 2026469 PMAQI
25th Jul 20263610 PMAQI
25th Jul 20266111 PMAQI
26th Jul 20264212 AMAQI
26th Jul 2026421 AMAQI
26th Jul 2026332 AMAQI
26th Jul 2026483 AMAQI
26th Jul 2026444 AMAQI
26th Jul 2026455 AMAQI
29°C20/40°C
26th Jul 2026376 AMAQI
26th Jul 2026507 AMAQI
26th Jul 2026438 AMAQI
26th Jul 2026569 AMAQI
26th Jul 20264610 AMAQI
26th Jul 20266111 AMAQI
26th Jul 20262512 PMAQI
26th Jul 2026671 PMAQI
26th Jul 2026442 PMAQI
26th Jul 2026543 PMAQI
26th Jul 2026544 PMAQI
26th Jul 2026505 PMAQI
26th Jul 2026526 PMAQI
26th Jul 2026527 PMAQI
26th Jul 2026448 PMAQI
26th Jul 2026449 PMAQI
26th Jul 20264810 PMAQI
26th Jul 20264611 PMAQI
27th Jul 20265212 AMAQI
27th Jul 2026521 AMAQI
27th Jul 2026482 AMAQI
27th Jul 2026503 AMAQI
27th Jul 2026504 AMAQI
27th Jul 2026495 AMAQI
31°C23/40°C
27th Jul 2026506 AMAQI
27th Jul 2026467 AMAQI
27th Jul 2026488 AMAQI
27th Jul 2026479 AMAQI
27th Jul 20264810 AMAQI
27th Jul 20265411 AMAQI
27th Jul 20265612 PMAQI
27th Jul 2026601 PMAQI
27th Jul 2026552 PMAQI
27th Jul 2026553 PMAQI
27th Jul 2026514 PMAQI
27th Jul 2026585 PMAQI
27th Jul 2026596 PMAQI
27th Jul 2026537 PMAQI
27th Jul 2026518 PMAQI
27th Jul 2026549 PMAQI
27th Jul 20265210 PMAQI
27th Jul 20265211 PMAQI
28th Jul 20265612 AMAQI
28th Jul 2026501 AMAQI
28th Jul 2026522 AMAQI
28th Jul 2026503 AMAQI
28th Jul 2026484 AMAQI
28th Jul 2026495 AMAQI
32°C26/39°C
28th Jul 2026546 AMAQI
28th Jul 2026507 AMAQI
28th Jul 2026528 AMAQI
28th Jul 2026589 AMAQI
28th Jul 20265610 AMAQI
28th Jul 20265711 AMAQI
28th Jul 20265712 PMAQI
28th Jul 2026611 PMAQI
28th Jul 2026652 PMAQI
28th Jul 2026663 PMAQI
28th Jul 2026664 PMAQI
28th Jul 2026605 PMAQI
28th Jul 2026576 PMAQI
28th Jul 2026557 PMAQI
28th Jul 2026548 PMAQI
28th Jul 2026619 PMAQI
28th Jul 20266610 PMAQI
28th Jul 20265811 PMAQI
29th Jul 20264412 AMAQI
29th Jul 2026461 AMAQI
29th Jul 2026412 AMAQI
29th Jul 2026423 AMAQI
29th Jul 2026494 AMAQI
29th Jul 2026485 AMAQI
29°C23/36°C
29th Jul 2026446 AMAQI
29th Jul 2026447 AMAQI
29th Jul 2026428 AMAQI
29th Jul 2026399 AMAQI
29th Jul 20265210 AMAQI
29th Jul 20265211 AMAQI
29th Jul 20265012 PMAQI
29th Jul 2026531 PMAQI
29th Jul 2026512 PMAQI
29th Jul 2026503 PMAQI
29th Jul 2026514 PMAQI
29th Jul 2026475 PMAQI
29th Jul 2026486 PMAQI
29th Jul 2026457 PMAQI
29th Jul 2026458 PMAQI
29th Jul 2026509 PMAQI
29th Jul 20265410 PMAQI
29th Jul 20265311 PMAQI
30th Jul 20265212 AMAQI
30th Jul 2026561 AMAQI
30th Jul 2026512 AMAQI
30th Jul 2026543 AMAQI
30th Jul 2026564 AMAQI
30th Jul 2026525 AMAQI
28°C21/36°C
30th Jul 2026506 AMAQI
30th Jul 2026477 AMAQI
30th Jul 2026528 AMAQI
30th Jul 2026549 AMAQI
30th Jul 20265510 AMAQI
30th Jul 20265411 AMAQI
30th Jul 20265612 PMAQI
30th Jul 2026471 PMAQI
30th Jul 2026522 PMAQI
30th Jul 2026503 PMAQI
30th Jul 2026474 PMAQI
30th Jul 2026545 PMAQI
30th Jul 2026506 PMAQI
30th Jul 2026497 PMAQI
30th Jul 2026518 PMAQI
30th Jul 2026489 PMAQI
30th Jul 20264510 PMAQI
30th Jul 20264811 PMAQI
31st Jul 20264212 AMAQI
31st Jul 2026551 AMAQI
31st Jul 2026372 AMAQI
31st Jul 2026463 AMAQI
31st Jul 2026384 AMAQI
31st Jul 2026405 AMAQI
26°C23/29°C
31st Jul 2026326 AMAQI
31st Jul 2026627 AMAQI
31st Jul 2026678 AMAQI
31st Jul 2026409 AMAQI
31st Jul 20264410 AMAQI
31st Jul 20263411 AMAQI
31st Jul 20264212 PMAQI
31st Jul 2026541 PMAQI
31st Jul 2026212 PMAQI
31st Jul 2026303 PMAQI
31st Jul 2026424 PMAQI
31st Jul 2026435 PMAQI
31st Jul 2026276 PMAQI
31st Jul 2026377 PMAQI
31st Jul 2026348 PMAQI
31st Jul 2026289 PMAQI
31st Jul 20262210 PMAQI
31st Jul 20263411 PMAQI
1st Aug 20264012 AMAQI
1st Aug 2026471 AMAQI
1st Aug 2026362 AMAQI
1st Aug 2026283 AMAQI
1st Aug 2026354 AMAQI
1st Aug 2026365 AMAQI
22°C18/24°C
1st Aug 2026346 AMAQI
1st Aug 2026347 AMAQI
1st Aug 2026428 AMAQI
1st Aug 2026369 AMAQI
1st Aug 20264410 AMAQI
1st Aug 20264811 AMAQI
1st Aug 20264312 PMAQI
1st Aug 2026421 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026463 PMAQI
1st Aug 2026484 PMAQI
1st Aug 2026405 PMAQI
1st Aug 2026436 PMAQI
1st Aug 2026377 PMAQI
1st Aug 2026468 PMAQI
1st Aug 2026289 PMAQI
1st Aug 20264110 PMAQI
1st Aug 20264011 PMAQI
2nd Aug 20263412 AMAQI
2nd Aug 2026291 AMAQI
2nd Aug 2026252 AMAQI
2nd Aug 2026403 AMAQI
2nd Aug 2026354 AMAQI
2nd Aug 2026355 AMAQI
23°C15/31°C
2nd Aug 2026246 AMAQI
2nd Aug 2026257 AMAQI
2nd Aug 2026298 AMAQI
2nd Aug 2026409 AMAQI
2nd Aug 20263910 AMAQI
2nd Aug 20264811 AMAQI
2nd Aug 20265212 PMAQI
2nd Aug 2026321 PMAQI
2nd Aug 2026322 PMAQI
2nd Aug 2026453 PMAQI
2nd Aug 2026484 PMAQI
2nd Aug 2026465 PMAQI
2nd Aug 2026506 PMAQI
2nd Aug 2026427 PMAQI
2nd Aug 2026398 PMAQI
2nd Aug 2026299 PMAQI
2nd Aug 20263610 PMAQI
2nd Aug 20263011 PMAQI
3rd Aug 20263212 AMAQI
3rd Aug 2026401 AMAQI
3rd Aug 2026422 AMAQI
3rd Aug 2026283 AMAQI
3rd Aug 2026234 AMAQI
3rd Aug 2026365 AMAQI
24°C15/32°C
3rd Aug 2026376 AMAQI
3rd Aug 2026427 AMAQI
3rd Aug 2026418 AMAQI
3rd Aug 2026409 AMAQI
3rd Aug 20262810 AMAQI
3rd Aug 20263011 AMAQI
3rd Aug 20264412 PMAQI
3rd Aug 2026441 PMAQI
3rd Aug 2026432 PMAQI
3rd Aug 2026293 PMAQI
3rd Aug 2026494 PMAQI
3rd Aug 2026505 PMAQI
3rd Aug 2026456 PMAQI
3rd Aug 2026437 PMAQI
3rd Aug 2026438 PMAQI
3rd Aug 2026459 PMAQI
3rd Aug 20264210 PMAQI
3rd Aug 20264411 PMAQI
4th Aug 20264912 AMAQI
4th Aug 2026501 AMAQI
4th Aug 2026542 AMAQI
4th Aug 2026503 AMAQI
4th Aug 2026544 AMAQI
4th Aug 2026535 AMAQI
26°C19/34°C
4th Aug 2026606 AMAQI
4th Aug 2026647 AMAQI
4th Aug 2026688 AMAQI
4th Aug 2026699 AMAQI
4th Aug 20266710 AMAQI
4th Aug 20267211 AMAQI
4th Aug 20266812 PMAQI
4th Aug 2026621 PMAQI
4th Aug 2026582 PMAQI
4th Aug 2026543 PMAQI
4th Aug 2026564 PMAQI
4th Aug 2026525 PMAQI
4th Aug 2026566 PMAQI
4th Aug 2026557 PMAQI
4th Aug 2026528 PMAQI
4th Aug 2026499 PMAQI
4th Aug 20264410 PMAQI
4th Aug 20265011 PMAQI
5th Aug 20265812 AMAQI
5th Aug 2026561 AMAQI
5th Aug 2026542 AMAQI
5th Aug 2026543 AMAQI
5th Aug 2026504 AMAQI
5th Aug 2026485 AMAQI
20°C16/24°C
5th Aug 2026356 AMAQI
5th Aug 2026437 AMAQI
5th Aug 2026438 AMAQI
5th Aug 2026509 AMAQI
5th Aug 20264510 AMAQI
5th Aug 20265011 AMAQI
5th Aug 20265212 PMAQI
5th Aug 2026481 PMAQI
5th Aug 2026482 PMAQI
5th Aug 2026513 PMAQI
5th Aug 2026454 PMAQI
5th Aug 2026435 PMAQI
5th Aug 2026326 PMAQI
5th Aug 2026277 PMAQI
5th Aug 2026428 PMAQI
5th Aug 2026379 PMAQI
5th Aug 20263110 PMAQI
5th Aug 20266611 PMAQI
6th Aug 20266812 AMAQI
6th Aug 2026541 AMAQI
6th Aug 2026422 AMAQI
6th Aug 2026213 AMAQI
6th Aug 2026414 AMAQI
6th Aug 2026295 AMAQI
20°C13/29°C
6th Aug 2026366 AMAQI
6th Aug 2026347 AMAQI
6th Aug 2026278 AMAQI
6th Aug 2026459 AMAQI
6th Aug 20262310 AMAQI
6th Aug 20264711 AMAQI
6th Aug 20264612 PMAQI
6th Aug 2026451 PMAQI
6th Aug 2026212 PMAQI
6th Aug 2026463 PMAQI
6th Aug 2026524 PMAQI
6th Aug 2026525 PMAQI
6th Aug 2026416 PMAQI
6th Aug 2026507 PMAQI
6th Aug 2026518 PMAQI
6th Aug 2026649 PMAQI
6th Aug 20264010 PMAQI
6th Aug 20264111 PMAQI
7th Aug 20265012 AMAQI
7th Aug 2026531 AMAQI
7th Aug 2026562 AMAQI
7th Aug 2026533 AMAQI
7th Aug 2026434 AMAQI
7th Aug 2026465 AMAQI
20°C12/28°C
7th Aug 2026376 AMAQI
7th Aug 2026387 AMAQI
7th Aug 2026238 AMAQI
7th Aug 2026429 AMAQI
7th Aug 20263610 AMAQI
7th Aug 20264211 AMAQI
7th Aug 20265012 PMAQI
7th Aug 2026411 PMAQI
7th Aug 2026432 PMAQI
7th Aug 2026423 PMAQI
7th Aug 2026404 PMAQI
7th Aug 2026485 PMAQI
7th Aug 2026706 PMAQI
7th Aug 2026507 PMAQI
7th Aug 2026438 PMAQI
7th Aug 2026789 PMAQI
7th Aug 20264510 PMAQI
7th Aug 20266611 PMAQI
8th Aug 20264612 AMAQI
8th Aug 2026491 AMAQI
8th Aug 2026422 AMAQI
8th Aug 2026413 AMAQI
8th Aug 2026424 AMAQI
8th Aug 2026525 AMAQI
23°C17/31°C
8th Aug 2026446 AMAQI
8th Aug 2026547 AMAQI
8th Aug 2026548 AMAQI
8th Aug 2026479 AMAQI
8th Aug 20265110 AMAQI
8th Aug 20265011 AMAQI
8th Aug 20265612 PMAQI
8th Aug 2026391 PMAQI
8th Aug 2026582 PMAQI
8th Aug 2026723 PMAQI
8th Aug 2026684 PMAQI
8th Aug 2026595 PMAQI
8th Aug 2026446 PMAQI
8th Aug 2026427 PMAQI
8th Aug 2026318 PMAQI
8th Aug 2026389 PMAQI
8th Aug 20263010 PMAQI
8th Aug 20264511 PMAQI
9th Aug 20265212 AMAQI
9th Aug 2026641 AMAQI
9th Aug 2026692 AMAQI
9th Aug 2026533 AMAQI
9th Aug 2026494 AMAQI
9th Aug 2026685 AMAQI
21°C11/30°C
9th Aug 2026486 AMAQI
9th Aug 2026457 AMAQI
9th Aug 2026388 AMAQI
9th Aug 2026489 AMAQI
9th Aug 20264010 AMAQI
9th Aug 20264611 AMAQI
9th Aug 20264612 PMAQI
9th Aug 2026361 PMAQI
9th Aug 2026522 PMAQI
9th Aug 2026453 PMAQI
9th Aug 2026514 PMAQI
9th Aug 2026385 PMAQI
9th Aug 2026326 PMAQI
9th Aug 2026347 PMAQI
9th Aug 2026308 PMAQI
9th Aug 2026419 PMAQI
9th Aug 20265310 PMAQI
9th Aug 20264811 PMAQI
10th Aug 20264112 AMAQI
10th Aug 2026471 AMAQI
10th Aug 2026512 AMAQI
10th Aug 2026523 AMAQI
10th Aug 2026364 AMAQI
10th Aug 2026495 AMAQI
25°C19/32°C
10th Aug 2026526 AMAQI
10th Aug 2026347 AMAQI
10th Aug 2026468 AMAQI
10th Aug 2026459 AMAQI
10th Aug 20264410 AMAQI
10th Aug 20264111 AMAQI
10th Aug 20265412 PMAQI
10th Aug 2026501 PMAQI
10th Aug 2026502 PMAQI
10th Aug 2026463 PMAQI
10th Aug 2026464 PMAQI
10th Aug 2026465 PMAQI
10th Aug 2026486 PMAQI
10th Aug 2026457 PMAQI
10th Aug 2026448 PMAQI
10th Aug 2026469 PMAQI
10th Aug 20264510 PMAQI
10th Aug 20264411 PMAQI
11th Aug 20264512 AMAQI
11th Aug 2026441 AMAQI
11th Aug 2026442 AMAQI
11th Aug 2026443 AMAQI
11th Aug 2026414 AMAQI
11th Aug 2026445 AMAQI
26°C20/32°C
11th Aug 2026456 AMAQI
11th Aug 2026447 AMAQI
11th Aug 2026428 AMAQI
11th Aug 2026429 AMAQI
11th Aug 20264310 AMAQI
11th Aug 20263211 AMAQI
11th Aug 20262912 PMAQI
11th Aug 2026401 PMAQI
11th Aug 2026372 PMAQI
11th Aug 2026463 PMAQI
11th Aug 2026414 PMAQI
11th Aug 2026445 PMAQI
11th Aug 2026376 PMAQI
11th Aug 2026327 PMAQI
11th Aug 2026418 PMAQI
11th Aug 2026479 PMAQI
11th Aug 20264110 PMAQI
11th Aug 20263611 PMAQI
12th Aug 20262912 AMAQI
12th Aug 2026351 AMAQI
12th Aug 2026422 AMAQI
12th Aug 2026393 AMAQI
12th Aug 2026334 AMAQI
12th Aug 2026295 AMAQI
28°C23/35°C
12th Aug 2026386 AMAQI
12th Aug 2026267 AMAQI
12th Aug 2026258 AMAQI
12th Aug 2026229 AMAQI
12th Aug 20262810 AMAQI
12th Aug 20263411 AMAQI
12th Aug 20263712 PMAQI
12th Aug 2026251 PMAQI
12th Aug 2026402 PMAQI
12th Aug 2026463 PMAQI
12th Aug 2026444 PMAQI
12th Aug 2026495 PMAQI
12th Aug 2026466 PMAQI
12th Aug 2026647 PMAQI
12th Aug 2026638 PMAQI
12th Aug 2026609 PMAQI
12th Aug 20265710 PMAQI
12th Aug 20265811 PMAQI
13th Aug 20265312 AMAQI
13th Aug 2026521 AMAQI
13th Aug 2026542 AMAQI
13th Aug 2026373 AMAQI
13th Aug 2026444 AMAQI
13th Aug 2026295 AMAQI
28°C22/34°C
13th Aug 2026226 AMAQI
13th Aug 2026377 AMAQI
13th Aug 2026488 AMAQI
13th Aug 2026369 AMAQI
13th Aug 20263510 AMAQI
13th Aug 20262511 AMAQI
13th Aug 20264812 PMAQI
13th Aug 2026481 PMAQI
13th Aug 2026502 PMAQI
13th Aug 2026523 PMAQI
13th Aug 2026504 PMAQI
13th Aug 2026505 PMAQI
13th Aug 2026546 PMAQI
13th Aug 2026587 PMAQI
13th Aug 2026608 PMAQI
13th Aug 2026549 PMAQI
13th Aug 20265210 PMAQI
13th Aug 20265311 PMAQI
14th Aug 20264512 AMAQI
14th Aug 2026521 AMAQI
14th Aug 2026542 AMAQI
14th Aug 2026553 AMAQI
14th Aug 2026544 AMAQI
14th Aug 2026565 AMAQI
25°C21/29°C
14th Aug 2026556 AMAQI
14th Aug 2026607 AMAQI
14th Aug 2026628 AMAQI
14th Aug 2026549 AMAQI
14th Aug 20265110 AMAQI
14th Aug 20265011 AMAQI
14th Aug 20265212 PMAQI
14th Aug 2026461 PMAQI
14th Aug 2026462 PMAQI
14th Aug 2026433 PMAQI
14th Aug 2026464 PMAQI
14th Aug 2026465 PMAQI
14th Aug 2026376 PMAQI
14th Aug 2026267 PMAQI
14th Aug 2026288 PMAQI
14th Aug 2026509 PMAQI
14th Aug 20265210 PMAQI
14th Aug 20265811 PMAQI
15th Aug 20263912 AMAQI
15th Aug 2026381 AMAQI
15th Aug 2026252 AMAQI
15th Aug 2026473 AMAQI
15th Aug 2026364 AMAQI
15th Aug 2026305 AMAQI
23°C21/26°C
15th Aug 2026436 AMAQI
6 AM15th Aug 2026397 AMAQI
15th Aug 2026478 AMAQI
15th Aug 2026509 AMAQI
15th Aug 20263810 AMAQI
15th Aug 20264811 AMAQI
15th Aug 20265512 PMAQI
15th Aug 2026581 PMAQI
1 PM15th Aug 2026522 PMAQI
15th Aug 2026503 PMAQI
15th Aug 2026464 PMAQI
15th Aug 2026435 PMAQI
15th Aug 2026376 PMAQI
15th Aug 2026267 PMAQI
15th Aug 2026478 PMAQI
8 PM15th Aug 2026439 PMAQI
15th Aug 20263810 PMAQI
15th Aug 20264011 PMAQI
1 AM
5 AM
23°C20/27°C
Day time
Avg. Highest Time
12 PM
49AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
6 AM - 10 AM
46AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 12 PM (Avg. 49), while the lowest AQI was between 6 AM to 10 AM (Avg. 46).
Night time
Avg. Highest Time
11 PM
49AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 10 PM
46AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 49), while the lowest AQI was between 12 AM to 10 PM (Avg. 46).
2026 Days Vs Air Quality
Vermillion, South Dakota, United States
2026
90%
202
10%
22
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Good
202 DaysModerate
22 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 227 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
Vermillion, South Dakota, United States
AQI levels in 2026
AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
28AQI (US)
28AQI (US)
2nd January 2026
34AQI (US)
34AQI (US)
3rd January 2026
36AQI (US)
36AQI (US)
4th January 2026
40AQI (US)
40AQI (US)
5th January 2026
24AQI (US)
24AQI (US)
6th January 2026
32AQI (US)
32AQI (US)
7th January 2026
28AQI (US)
28AQI (US)
8th January 2026
30AQI (US)
30AQI (US)
9th January 2026
26AQI (US)
26AQI (US)
10th January 2026
31AQI (US)
31AQI (US)
11th January 2026
24AQI (US)
24AQI (US)
12th January 2026
22AQI (US)
22AQI (US)
13th January 2026
33AQI (US)
33AQI (US)
14th January 2026
22AQI (US)
22AQI (US)
15th January 2026
24AQI (US)
24AQI (US)
16th January 2026
30AQI (US)
30AQI (US)
17th January 2026
28AQI (US)
28AQI (US)
18th January 2026
32AQI (US)
32AQI (US)
19th January 2026
26AQI (US)
26AQI (US)
20th January 2026
24AQI (US)
24AQI (US)
21st January 2026
33AQI (US)
33AQI (US)
22nd January 2026
44AQI (US)
44AQI (US)
23rd January 2026
42AQI (US)
42AQI (US)
24th January 2026
34AQI (US)
34AQI (US)
25th January 2026
42AQI (US)
42AQI (US)
26th January 2026
38AQI (US)
38AQI (US)
27th January 2026
32AQI (US)
32AQI (US)
28th January 2026
32AQI (US)
32AQI (US)
29th January 2026
38AQI (US)
38AQI (US)
30th January 2026
55AQI (US)
55AQI (US)
31st January 2026
33AQI (US)
33AQI (US)
1st February 2026
34AQI (US)
34AQI (US)
2nd February 2026
45AQI (US)
45AQI (US)
3rd February 2026
43AQI (US)
43AQI (US)
4th February 2026
36AQI (US)
36AQI (US)
5th February 2026
46AQI (US)
46AQI (US)
6th February 2026
39AQI (US)
39AQI (US)
7th February 2026
36AQI (US)
36AQI (US)
8th February 2026
30AQI (US)
30AQI (US)
9th February 2026
44AQI (US)
44AQI (US)
10th February 2026
38AQI (US)
38AQI (US)
11th February 2026
31AQI (US)
31AQI (US)
12th February 2026
36AQI (US)
36AQI (US)
13th February 2026
44AQI (US)
44AQI (US)
14th February 2026
42AQI (US)
42AQI (US)
15th February 2026
40AQI (US)
40AQI (US)
16th February 2026
40AQI (US)
40AQI (US)
17th February 2026
36AQI (US)
36AQI (US)
18th February 2026
42AQI (US)
42AQI (US)
19th February 2026
34AQI (US)
34AQI (US)
20th February 2026
25AQI (US)
25AQI (US)
21st February 2026
24AQI (US)
24AQI (US)
22nd February 2026
30AQI (US)
30AQI (US)
23rd February 2026
30AQI (US)
30AQI (US)
24th February 2026
41AQI (US)
41AQI (US)
25th February 2026
35AQI (US)
35AQI (US)
26th February 2026
30AQI (US)
30AQI (US)
27th February 2026
32AQI (US)
32AQI (US)
28th February 2026
26AQI (US)
26AQI (US)
1st March 2026
34AQI (US)
34AQI (US)
2nd March 2026
50AQI (US)
50AQI (US)
3rd March 2026
36AQI (US)
36AQI (US)
4th March 2026
40AQI (US)
40AQI (US)
5th March 2026
44AQI (US)
44AQI (US)
6th March 2026
30AQI (US)
30AQI (US)
7th March 2026
37AQI (US)
37AQI (US)
8th March 2026
34AQI (US)
34AQI (US)
9th March 2026
32AQI (US)
32AQI (US)
10th March 2026
32AQI (US)
32AQI (US)
11th March 2026
36AQI (US)
36AQI (US)
12th March 2026
32AQI (US)
32AQI (US)
13th March 2026
37AQI (US)
37AQI (US)
14th March 2026
28AQI (US)
28AQI (US)
15th March 2026
20AQI (US)
20AQI (US)
16th March 2026
30AQI (US)
30AQI (US)
17th March 2026
30AQI (US)
30AQI (US)
18th March 2026
25AQI (US)
25AQI (US)
19th March 2026
36AQI (US)
36AQI (US)
20th March 2026
41AQI (US)
41AQI (US)
21st March 2026
35AQI (US)
35AQI (US)
22nd March 2026
35AQI (US)
35AQI (US)
23rd March 2026
34AQI (US)
34AQI (US)
24th March 2026
33AQI (US)
33AQI (US)
25th March 2026
42AQI (US)
42AQI (US)
26th March 2026
42AQI (US)
42AQI (US)
27th March 2026
18AQI (US)
18AQI (US)
28th March 2026
38AQI (US)
38AQI (US)
29th March 2026
36AQI (US)
36AQI (US)
30th March 2026
42AQI (US)
42AQI (US)
31st March 2026
38AQI (US)
38AQI (US)
1st April 2026
26AQI (US)
26AQI (US)
2nd April 2026
30AQI (US)
30AQI (US)
3rd April 2026
28AQI (US)
28AQI (US)
4th April 2026
31AQI (US)
31AQI (US)
5th April 2026
29AQI (US)
29AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
26AQI (US)
26AQI (US)
8th April 2026
32AQI (US)
32AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
26AQI (US)
26AQI (US)
11th April 2026
24AQI (US)
24AQI (US)
12th April 2026
28AQI (US)
28AQI (US)
13th April 2026
24AQI (US)
24AQI (US)
14th April 2026
28AQI (US)
28AQI (US)
15th April 2026
31AQI (US)
31AQI (US)
16th April 2026
30AQI (US)
30AQI (US)
17th April 2026
18th April 2026
19AQI (US)
19AQI (US)
19th April 2026
21AQI (US)
21AQI (US)
20th April 2026
34AQI (US)
34AQI (US)
21st April 2026
41AQI (US)
41AQI (US)
22nd April 2026
23rd April 2026
41AQI (US)
41AQI (US)
24th April 2026
25AQI (US)
25AQI (US)
25th April 2026
21AQI (US)
21AQI (US)
26th April 2026
23AQI (US)
23AQI (US)
27th April 2026
16AQI (US)
16AQI (US)
28th April 2026
22AQI (US)
22AQI (US)
29th April 2026
20AQI (US)
20AQI (US)
30th April 2026
21AQI (US)
21AQI (US)
1st May 2026
20AQI (US)
20AQI (US)
2nd May 2026
18AQI (US)
18AQI (US)
3rd May 2026
22AQI (US)
22AQI (US)
4th May 2026
36AQI (US)
36AQI (US)
5th May 2026
32AQI (US)
32AQI (US)
6th May 2026
24AQI (US)
24AQI (US)
7th May 2026
28AQI (US)
28AQI (US)
8th May 2026
35AQI (US)
35AQI (US)
9th May 2026
10th May 2026
28AQI (US)
28AQI (US)
11th May 2026
28AQI (US)
28AQI (US)
12th May 2026
50AQI (US)
50AQI (US)
13th May 2026
45AQI (US)
45AQI (US)
14th May 2026
64AQI (US)
64AQI (US)
15th May 2026
55AQI (US)
55AQI (US)
16th May 2026
52AQI (US)
52AQI (US)
17th May 2026
51AQI (US)
51AQI (US)
18th May 2026
49AQI (US)
49AQI (US)
19th May 2026
52AQI (US)
52AQI (US)
20th May 2026
42AQI (US)
42AQI (US)
21st May 2026
39AQI (US)
39AQI (US)
22nd May 2026
34AQI (US)
34AQI (US)
23rd May 2026
47AQI (US)
47AQI (US)
24th May 2026
44AQI (US)
44AQI (US)
25th May 2026
41AQI (US)
41AQI (US)
26th May 2026
21AQI (US)
21AQI (US)
27th May 2026
22AQI (US)
22AQI (US)
28th May 2026
23AQI (US)
23AQI (US)
29th May 2026
29AQI (US)
29AQI (US)
30th May 2026
22AQI (US)
22AQI (US)
31st May 2026
14AQI (US)
14AQI (US)
1st June 2026
22AQI (US)
22AQI (US)
2nd June 2026
28AQI (US)
28AQI (US)
3rd June 2026
24AQI (US)
24AQI (US)
4th June 2026
26AQI (US)
26AQI (US)
5th June 2026
19AQI (US)
19AQI (US)
6th June 2026
15AQI (US)
15AQI (US)
7th June 2026
18AQI (US)
18AQI (US)
8th June 2026
17AQI (US)
17AQI (US)
9th June 2026
22AQI (US)
22AQI (US)
10th June 2026
22AQI (US)
22AQI (US)
11th June 2026
16AQI (US)
16AQI (US)
12th June 2026
14AQI (US)
14AQI (US)
13th June 2026
16AQI (US)
16AQI (US)
14th June 2026
14AQI (US)
14AQI (US)
15th June 2026
18AQI (US)
18AQI (US)
16th June 2026
16AQI (US)
16AQI (US)
17th June 2026
22AQI (US)
22AQI (US)
18th June 2026
20AQI (US)
20AQI (US)
19th June 2026
30AQI (US)
30AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
17AQI (US)
17AQI (US)
23rd June 2026
17AQI (US)
17AQI (US)
24th June 2026
22AQI (US)
22AQI (US)
25th June 2026
22AQI (US)
22AQI (US)
26th June 2026
19AQI (US)
19AQI (US)
27th June 2026
20AQI (US)
20AQI (US)
28th June 2026
28AQI (US)
28AQI (US)
29th June 2026
38AQI (US)
38AQI (US)
30th June 2026
46AQI (US)
46AQI (US)
1st July 2026
39AQI (US)
39AQI (US)
2nd July 2026
50AQI (US)
50AQI (US)
3rd July 2026
38AQI (US)
38AQI (US)
4th July 2026
44AQI (US)
44AQI (US)
5th July 2026
78AQI (US)
78AQI (US)
6th July 2026
68AQI (US)
68AQI (US)
7th July 2026
66AQI (US)
66AQI (US)
8th July 2026
65AQI (US)
65AQI (US)
9th July 2026
46AQI (US)
46AQI (US)
10th July 2026
70AQI (US)
70AQI (US)
11th July 2026
62AQI (US)
62AQI (US)
12th July 2026
90AQI (US)
90AQI (US)
13th July 2026
75AQI (US)
75AQI (US)
14th July 2026
41AQI (US)
41AQI (US)
15th July 2026
89AQI (US)
89AQI (US)
16th July 2026
74AQI (US)
74AQI (US)
17th July 2026
44AQI (US)
44AQI (US)
18th July 2026
62AQI (US)
62AQI (US)
19th July 2026
48AQI (US)
48AQI (US)
20th July 2026
48AQI (US)
48AQI (US)
21st July 2026
49AQI (US)
49AQI (US)
22nd July 2026
52AQI (US)
52AQI (US)
23rd July 2026
46AQI (US)
46AQI (US)
24th July 2026
46AQI (US)
46AQI (US)
25th July 2026
48AQI (US)
48AQI (US)
26th July 2026
46AQI (US)
46AQI (US)
27th July 2026
52AQI (US)
52AQI (US)
28th July 2026
56AQI (US)
56AQI (US)
29th July 2026
48AQI (US)
48AQI (US)
30th July 2026
51AQI (US)
51AQI (US)
31st July 2026
40AQI (US)
40AQI (US)
1st August 2026
40AQI (US)
40AQI (US)
2nd August 2026
36AQI (US)
36AQI (US)
3rd August 2026
39AQI (US)
39AQI (US)
4th August 2026
57AQI (US)
57AQI (US)
5th August 2026
46AQI (US)
46AQI (US)
6th August 2026
42AQI (US)
42AQI (US)
7th August 2026
48AQI (US)
48AQI (US)
8th August 2026
48AQI (US)
48AQI (US)
9th August 2026
47AQI (US)
47AQI (US)
10th August 2026
46AQI (US)
46AQI (US)
11th August 2026
41AQI (US)
41AQI (US)
12th August 2026
40AQI (US)
40AQI (US)
13th August 2026
46AQI (US)
46AQI (US)
14th August 2026
49AQI (US)
49AQI (US)
15th August 2026
42AQI (US)
42AQI (US)
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
32AQI (US)
36AQI (US)
35AQI (US)
27AQI (US)
36AQI (US)
22AQI (US)
56AQI (US)
44AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202636AQI (US)
30
1
28
31
28
25
5
30
16
15
14
1
202
22
Highest AQI (US) recorded in
July56AQI (US)
Lowest AQI (US) recorded in
June22AQI (US)
202535AQI (US)
31
26
2
29
2
27
3
31
19
11
28
2
1
25
5
1
29
1
20
11
28
2
29
2
322
41
2
Highest AQI (US) recorded in
October47AQI (US)
Lowest AQI (US) recorded in
January27AQI (US)
202430AQI (US)
16
1
2
2
12
29
31
29
2
27
1
28
3
30
30
1
237
7
Highest AQI (US) recorded in
October39AQI (US)
Lowest AQI (US) recorded in
February4AQI (US)
202320AQI (US)
3
31
34
Highest AQI (US) recorded in
December21AQI (US)
Lowest AQI (US) recorded in
November16AQI (US)
202143AQI (US)
18
6
21
7
22
9
27
3
29
1
19
11
22
6
2
1
25
3
3
22
8
12
9
217
63
5
1
Highest AQI (US) recorded in
July53AQI (US)
Lowest AQI (US) recorded in
April36AQI (US)
202034AQI (US)
13
19
1
18
28
2
20
11
30
1
24
6
25
5
29
1
28
3
234
29
1
Highest AQI (US) recorded in
July42AQI (US)
Lowest AQI (US) recorded in
November30AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
43AQI (US)Least Polluted Year Recorded
2023(Avg.)
20AQI (US)Vermillion's annual 2026 AQI (US) (36) shows an average percentage change of 18.4% (worsened AQI (US)) compared to previous years: 2020 (34), 2021 (43), 2023 (20), 2024 (30), 2025 (35).
