S Second St, Mount Vernon, Washington, 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
S Second St, Mount Vernon, Washington, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
24th Aug 2024
87AQILowest AQI recorded on
6th Aug 2023
12AQISame Day Analysis (4th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 52 of Moderate air quality on the same day.
Day & Night AQI Trend: 4th Aug - 5th Aug 2026
S Second St, Mount Vernon, Washington, United States
AQI
Day
Night
.
5 AM4th Aug 2026
9 PM
4 AM5th Aug 2026
Day time
Avg. Highest Time
12PM4th Aug
70AQI
Avg. Lowest Time
8AM4th Aug
42AQI
Night time
Avg. Highest Time
10PM4th Aug
76AQI
Avg. Lowest Time
1AM5th Aug
56AQI
In the last 24 hours,
S Second St's AQI reached its highest point of 76 at 10 PM during the Night, while the lowest point, 42, was recorded at 8 AM during the Day between 4th Aug and 5th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
S Second St, Mount Vernon, Washington, United States
JulAug
07th - 08th08th - 09th09th - 10th10th - 11th11th - 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
Day
Night
7th Jul 2026295 AMAQI
7th Jul 2026306 AMAQI
7th Jul 2026287 AMAQI
7th Jul 2026318 AMAQI
7th Jul 2026329 AMAQI
7th Jul 20263210 AMAQI
7th Jul 20263211 AMAQI
7th Jul 20262812 PMAQI
7th Jul 2026311 PMAQI
7th Jul 2026302 PMAQI
7th Jul 2026303 PMAQI
7th Jul 202684 PMAQI
7th Jul 2026285 PMAQI
7th Jul 2026296 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026268 PMAQI
7th Jul 2026269 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20262811 PMAQI
8th Jul 20263012 AMAQI
8th Jul 2026261 AMAQI
8th Jul 2026242 AMAQI
8th Jul 2026213 AMAQI
8th Jul 2026224 AMAQI
17°C11/24°C
8th Jul 2026245 AMAQI
8th Jul 2026266 AMAQI
8th Jul 2026287 AMAQI
8th Jul 2026308 AMAQI
8th Jul 2026319 AMAQI
8th Jul 20263010 AMAQI
8th Jul 20263111 AMAQI
8th Jul 20263012 PMAQI
8th Jul 2026311 PMAQI
8th Jul 2026292 PMAQI
8th Jul 2026323 PMAQI
8th Jul 2026274 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026256 PMAQI
8th Jul 2026247 PMAQI
8th Jul 2026248 PMAQI
8th Jul 2026249 PMAQI
8th Jul 20262410 PMAQI
8th Jul 20261811 PMAQI
9th Jul 20262712 AMAQI
9th Jul 2026271 AMAQI
9th Jul 2026282 AMAQI
9th Jul 2026283 AMAQI
9th Jul 2026184 AMAQI
16°C13/23°C
9th Jul 2026295 AMAQI
9th Jul 2026286 AMAQI
9th Jul 2026307 AMAQI
9th Jul 2026308 AMAQI
9th Jul 2026309 AMAQI
9th Jul 20263010 AMAQI
9th Jul 20263011 AMAQI
9th Jul 20262612 PMAQI
9th Jul 2026301 PMAQI
9th Jul 2026302 PMAQI
9th Jul 2026283 PMAQI
9th Jul 2026314 PMAQI
9th Jul 2026305 PMAQI
9th Jul 2026326 PMAQI
9th Jul 2026287 PMAQI
9th Jul 2026288 PMAQI
9th Jul 2026269 PMAQI
9th Jul 20262410 PMAQI
9th Jul 20262211 PMAQI
10th Jul 20262612 AMAQI
10th Jul 2026321 AMAQI
10th Jul 2026302 AMAQI
10th Jul 2026313 AMAQI
10th Jul 2026344 AMAQI
17°C11/25°C
10th Jul 2026335 AMAQI
10th Jul 2026346 AMAQI
10th Jul 2026367 AMAQI
10th Jul 2026368 AMAQI
10th Jul 2026369 AMAQI
10th Jul 20263410 AMAQI
10th Jul 20263211 AMAQI
10th Jul 20262812 PMAQI
10th Jul 2026341 PMAQI
10th Jul 2026342 PMAQI
10th Jul 2026353 PMAQI
10th Jul 2026364 PMAQI
10th Jul 2026365 PMAQI
10th Jul 2026376 PMAQI
10th Jul 2026347 PMAQI
10th Jul 2026288 PMAQI
10th Jul 2026269 PMAQI
10th Jul 20262510 PMAQI
10th Jul 20262411 PMAQI
11th Jul 20262812 AMAQI
11th Jul 2026341 AMAQI
11th Jul 2026302 AMAQI
11th Jul 2026313 AMAQI
11th Jul 2026264 AMAQI
18°C13/24°C
11th Jul 2026335 AMAQI
11th Jul 2026346 AMAQI
11th Jul 2026307 AMAQI
11th Jul 2026328 AMAQI
11th Jul 2026329 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20263211 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026301 PMAQI
11th Jul 2026302 PMAQI
11th Jul 2026323 PMAQI
11th Jul 2026324 PMAQI
11th Jul 2026315 PMAQI
11th Jul 2026306 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026268 PMAQI
11th Jul 2026249 PMAQI
11th Jul 20262310 PMAQI
11th Jul 20262411 PMAQI
12th Jul 20262412 AMAQI
12th Jul 2026311 AMAQI
12th Jul 2026302 AMAQI
12th Jul 2026303 AMAQI
12th Jul 2026304 AMAQI
17°C12/24°C
12th Jul 2026325 AMAQI
12th Jul 2026306 AMAQI
12th Jul 2026337 AMAQI
12th Jul 2026318 AMAQI
12th Jul 2026319 AMAQI
12th Jul 20263110 AMAQI
12th Jul 20263211 AMAQI
12th Jul 20263012 PMAQI
12th Jul 2026301 PMAQI
12th Jul 2026292 PMAQI
12th Jul 2026303 PMAQI
12th Jul 2026294 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026287 PMAQI
12th Jul 2026298 PMAQI
12th Jul 2026269 PMAQI
12th Jul 20262010 PMAQI
12th Jul 20262211 PMAQI
13th Jul 20262812 AMAQI
13th Jul 2026301 AMAQI
13th Jul 2026322 AMAQI
13th Jul 2026323 AMAQI
13th Jul 2026344 AMAQI
17°C13/23°C
13th Jul 2026325 AMAQI
13th Jul 2026346 AMAQI
13th Jul 2026367 AMAQI
13th Jul 2026348 AMAQI
13th Jul 2026349 AMAQI
13th Jul 20263210 AMAQI
13th Jul 20263511 AMAQI
13th Jul 20262612 PMAQI
13th Jul 2026321 PMAQI
13th Jul 2026322 PMAQI
13th Jul 2026323 PMAQI
13th Jul 2026284 PMAQI
13th Jul 2026345 PMAQI
13th Jul 2026346 PMAQI
13th Jul 2026277 PMAQI
13th Jul 2026278 PMAQI
13th Jul 2026239 PMAQI
13th Jul 20262210 PMAQI
13th Jul 20262211 PMAQI
14th Jul 20262612 AMAQI
14th Jul 2026321 AMAQI
14th Jul 2026322 AMAQI
14th Jul 2026323 AMAQI
14th Jul 2026324 AMAQI
17°C9/25°C
14th Jul 2026345 AMAQI
14th Jul 2026346 AMAQI
14th Jul 2026367 AMAQI
14th Jul 2026378 AMAQI
14th Jul 2026359 AMAQI
14th Jul 20263710 AMAQI
14th Jul 20263611 AMAQI
14th Jul 20262612 PMAQI
14th Jul 2026321 PMAQI
14th Jul 2026282 PMAQI
14th Jul 2026353 PMAQI
14th Jul 2026334 PMAQI
14th Jul 2026335 PMAQI
14th Jul 2026326 PMAQI
14th Jul 2026277 PMAQI
14th Jul 2026258 PMAQI
14th Jul 2026209 PMAQI
14th Jul 20262010 PMAQI
14th Jul 20262011 PMAQI
15th Jul 20261412 AMAQI
15th Jul 2026261 AMAQI
15th Jul 2026252 AMAQI
15th Jul 2026233 AMAQI
15th Jul 2026264 AMAQI
19°C10/28°C
15th Jul 2026245 AMAQI
15th Jul 2026306 AMAQI
15th Jul 2026267 AMAQI
15th Jul 2026268 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20263010 AMAQI
15th Jul 20262811 AMAQI
15th Jul 20262912 PMAQI
15th Jul 2026321 PMAQI
15th Jul 2026282 PMAQI
15th Jul 2026303 PMAQI
15th Jul 202684 PMAQI
15th Jul 2026315 PMAQI
15th Jul 2026326 PMAQI
15th Jul 2026317 PMAQI
15th Jul 2026298 PMAQI
15th Jul 202699 PMAQI
15th Jul 20261010 PMAQI
15th Jul 20261211 PMAQI
16th Jul 20261012 AMAQI
16th Jul 2026101 AMAQI
16th Jul 202682 AMAQI
16th Jul 2026283 AMAQI
16th Jul 2026104 AMAQI
19°C11/28°C
16th Jul 2026105 AMAQI
16th Jul 2026146 AMAQI
16th Jul 2026127 AMAQI
16th Jul 2026148 AMAQI
16th Jul 2026139 AMAQI
16th Jul 20261510 AMAQI
16th Jul 20261811 AMAQI
16th Jul 20262112 PMAQI
16th Jul 2026121 PMAQI
16th Jul 2026102 PMAQI
16th Jul 2026233 PMAQI
16th Jul 2026244 PMAQI
16th Jul 2026295 PMAQI
16th Jul 2026316 PMAQI
16th Jul 2026267 PMAQI
16th Jul 202698 PMAQI
16th Jul 202699 PMAQI
16th Jul 20262510 PMAQI
16th Jul 20262411 PMAQI
17th Jul 20261412 AMAQI
17th Jul 2026121 AMAQI
17th Jul 2026382 AMAQI
17th Jul 2026673 AMAQI
17th Jul 2026524 AMAQI
16°C12/24°C
17th Jul 2026665 AMAQI
17th Jul 2026426 AMAQI
17th Jul 2026367 AMAQI
17th Jul 2026348 AMAQI
17th Jul 2026549 AMAQI
17th Jul 20263610 AMAQI
17th Jul 20267511 AMAQI
17th Jul 20265612 PMAQI
17th Jul 2026671 PMAQI
17th Jul 2026622 PMAQI
17th Jul 2026383 PMAQI
17th Jul 2026404 PMAQI
17th Jul 2026425 PMAQI
17th Jul 2026236 PMAQI
17th Jul 2026327 PMAQI
17th Jul 2026508 PMAQI
17th Jul 2026389 PMAQI
17th Jul 20266010 PMAQI
17th Jul 20264211 PMAQI
18th Jul 20263212 AMAQI
18th Jul 2026441 AMAQI
18th Jul 2026482 AMAQI
18th Jul 2026403 AMAQI
18th Jul 2026424 AMAQI
17°C14/23°C
18th Jul 2026495 AMAQI
18th Jul 2026426 AMAQI
18th Jul 2026287 AMAQI
18th Jul 202698 AMAQI
18th Jul 202689 AMAQI
18th Jul 20263610 AMAQI
18th Jul 20262411 AMAQI
18th Jul 20264212 PMAQI
18th Jul 2026881 PMAQI
18th Jul 2026822 PMAQI
18th Jul 2026813 PMAQI
18th Jul 2026594 PMAQI
18th Jul 2026525 PMAQI
18th Jul 2026586 PMAQI
18th Jul 2026427 PMAQI
18th Jul 2026218 PMAQI
18th Jul 2026209 PMAQI
18th Jul 20262610 PMAQI
18th Jul 20261111 PMAQI
19th Jul 20261312 AMAQI
19th Jul 2026151 AMAQI
19th Jul 2026462 AMAQI
19th Jul 2026563 AMAQI
19th Jul 2026424 AMAQI
17°C12/25°C
19th Jul 2026505 AMAQI
19th Jul 2026446 AMAQI
19th Jul 2026467 AMAQI
19th Jul 2026468 AMAQI
19th Jul 2026169 AMAQI
19th Jul 20261010 AMAQI
19th Jul 20261011 AMAQI
19th Jul 20261012 PMAQI
19th Jul 2026301 PMAQI
19th Jul 2026382 PMAQI
19th Jul 2026323 PMAQI
19th Jul 2026474 PMAQI
19th Jul 2026325 PMAQI
19th Jul 2026326 PMAQI
19th Jul 2026587 PMAQI
19th Jul 2026498 PMAQI
19th Jul 2026489 PMAQI
19th Jul 20265210 PMAQI
19th Jul 20264411 PMAQI
20th Jul 20264012 AMAQI
20th Jul 2026401 AMAQI
20th Jul 2026402 AMAQI
20th Jul 2026473 AMAQI
20th Jul 2026504 AMAQI
17°C11/25°C
20th Jul 2026465 AMAQI
20th Jul 2026486 AMAQI
20th Jul 2026487 AMAQI
20th Jul 2026508 AMAQI
20th Jul 2026509 AMAQI
20th Jul 20265210 AMAQI
20th Jul 20266411 AMAQI
20th Jul 20264212 PMAQI
20th Jul 2026511 PMAQI
20th Jul 2026582 PMAQI
20th Jul 2026583 PMAQI
20th Jul 2026554 PMAQI
20th Jul 2026445 PMAQI
20th Jul 2026406 PMAQI
20th Jul 2026447 PMAQI
20th Jul 2026489 PMAQI
20th Jul 20264810 PMAQI
20th Jul 20264811 PMAQI
21st Jul 20264412 AMAQI
21st Jul 2026421 AMAQI
21st Jul 2026402 AMAQI
21st Jul 2026523 AMAQI
21st Jul 2026524 AMAQI
20°C11/28°C
21st Jul 2026565 AMAQI
21st Jul 2026566 AMAQI
21st Jul 2026577 AMAQI
21st Jul 2026518 AMAQI
21st Jul 2026519 AMAQI
21st Jul 20265010 AMAQI
21st Jul 20265011 AMAQI
21st Jul 20265512 PMAQI
21st Jul 2026421 PMAQI
21st Jul 2026462 PMAQI
21st Jul 2026503 PMAQI
21st Jul 2026504 PMAQI
21st Jul 2026515 PMAQI
21st Jul 2026486 PMAQI
21st Jul 2026537 PMAQI
21st Jul 2026528 PMAQI
21st Jul 2026529 PMAQI
21st Jul 20264910 PMAQI
21st Jul 20264811 PMAQI
22nd Jul 20264612 AMAQI
22nd Jul 2026441 AMAQI
22nd Jul 2026552 AMAQI
22nd Jul 2026533 AMAQI
22nd Jul 2026644 AMAQI
22°C15/32°C
22nd Jul 2026545 AMAQI
22nd Jul 2026566 AMAQI
22nd Jul 2026547 AMAQI
22nd Jul 2026658 AMAQI
22nd Jul 2026569 AMAQI
22nd Jul 20265710 AMAQI
22nd Jul 20265811 AMAQI
22nd Jul 20265512 PMAQI
22nd Jul 2026561 PMAQI
22nd Jul 2026602 PMAQI
22nd Jul 2026653 PMAQI
22nd Jul 2026654 PMAQI
22nd Jul 2026665 PMAQI
22nd Jul 2026666 PMAQI
22nd Jul 2026647 PMAQI
22nd Jul 2026608 PMAQI
22nd Jul 2026649 PMAQI
22nd Jul 20266410 PMAQI
22nd Jul 20266211 PMAQI
23rd Jul 20266412 AMAQI
23rd Jul 2026641 AMAQI
23rd Jul 2026602 AMAQI
23rd Jul 2026593 AMAQI
23rd Jul 2026564 AMAQI
23°C15/31°C
23rd Jul 2026555 AMAQI
23rd Jul 2026526 AMAQI
23rd Jul 2026577 AMAQI
23rd Jul 2026558 AMAQI
23rd Jul 2026539 AMAQI
23rd Jul 20265010 AMAQI
23rd Jul 20264811 AMAQI
23rd Jul 20264612 PMAQI
23rd Jul 2026381 PMAQI
23rd Jul 2026542 PMAQI
23rd Jul 2026363 PMAQI
23rd Jul 2026524 PMAQI
23rd Jul 2026315 PMAQI
23rd Jul 2026276 PMAQI
23rd Jul 2026347 PMAQI
23rd Jul 2026428 PMAQI
23rd Jul 2026869 PMAQI
23rd Jul 202610110 PMAQI
23rd Jul 202614611 PMAQI
24th Jul 20263612 AMAQI
24th Jul 2026421 AMAQI
24th Jul 2026542 AMAQI
24th Jul 2026763 AMAQI
24th Jul 2026554 AMAQI
21°C16/25°C
24th Jul 2026565 AMAQI
24th Jul 2026666 AMAQI
24th Jul 2026557 AMAQI
24th Jul 2026468 AMAQI
24th Jul 2026389 AMAQI
24th Jul 20263610 AMAQI
24th Jul 20265411 AMAQI
24th Jul 20264812 PMAQI
24th Jul 2026481 PMAQI
24th Jul 2026402 PMAQI
24th Jul 2026423 PMAQI
24th Jul 2026384 PMAQI
24th Jul 2026385 PMAQI
24th Jul 2026306 PMAQI
24th Jul 2026367 PMAQI
24th Jul 2026468 PMAQI
24th Jul 2026449 PMAQI
24th Jul 20264410 PMAQI
24th Jul 20264611 PMAQI
25th Jul 20264212 AMAQI
25th Jul 2026381 AMAQI
25th Jul 2026382 AMAQI
25th Jul 2026403 AMAQI
25th Jul 2026604 AMAQI
19°C13/25°C
25th Jul 2026625 AMAQI
25th Jul 2026646 AMAQI
25th Jul 2026627 AMAQI
25th Jul 2026588 AMAQI
25th Jul 2026589 AMAQI
25th Jul 20265410 AMAQI
25th Jul 20266611 AMAQI
25th Jul 20266012 PMAQI
25th Jul 2026571 PMAQI
25th Jul 2026742 PMAQI
25th Jul 2026333 PMAQI
25th Jul 2026364 PMAQI
25th Jul 2026335 PMAQI
25th Jul 2026336 PMAQI
25th Jul 2026387 PMAQI
25th Jul 2026468 PMAQI
25th Jul 2026449 PMAQI
25th Jul 20264910 PMAQI
25th Jul 20264411 PMAQI
26th Jul 20262712 AMAQI
26th Jul 2026561 AMAQI
26th Jul 2026602 AMAQI
26th Jul 2026403 AMAQI
26th Jul 2026424 AMAQI
18°C13/24°C
26th Jul 2026605 AMAQI
26th Jul 2026636 AMAQI
26th Jul 2026367 AMAQI
26th Jul 2026648 AMAQI
26th Jul 2026709 AMAQI
26th Jul 20263310 AMAQI
26th Jul 20266211 AMAQI
26th Jul 20266212 PMAQI
26th Jul 2026621 PMAQI
26th Jul 2026622 PMAQI
26th Jul 2026573 PMAQI
26th Jul 2026524 PMAQI
26th Jul 2026585 PMAQI
26th Jul 2026626 PMAQI
26th Jul 2026717 PMAQI
26th Jul 2026588 PMAQI
26th Jul 2026529 PMAQI
26th Jul 20265910 PMAQI
26th Jul 20266311 PMAQI
27th Jul 20266212 AMAQI
27th Jul 2026601 AMAQI
27th Jul 2026742 AMAQI
27th Jul 2026663 AMAQI
27th Jul 2026464 AMAQI
19°C16/24°C
27th Jul 2026655 AMAQI
27th Jul 2026666 AMAQI
27th Jul 2026727 AMAQI
27th Jul 2026708 AMAQI
27th Jul 2026369 AMAQI
27th Jul 20264010 AMAQI
27th Jul 20263311 AMAQI
27th Jul 20266412 PMAQI
27th Jul 2026651 PMAQI
27th Jul 2026622 PMAQI
27th Jul 2026623 PMAQI
27th Jul 2026544 PMAQI
27th Jul 2026425 PMAQI
27th Jul 2026326 PMAQI
27th Jul 2026487 PMAQI
27th Jul 2026498 PMAQI
27th Jul 2026489 PMAQI
27th Jul 20264410 PMAQI
27th Jul 20265411 PMAQI
28th Jul 20264812 AMAQI
28th Jul 2026541 AMAQI
28th Jul 2026422 AMAQI
28th Jul 2026563 AMAQI
28th Jul 2026504 AMAQI
19°C14/27°C
28th Jul 2026625 AMAQI
28th Jul 2026526 AMAQI
28th Jul 2026707 AMAQI
28th Jul 2026498 AMAQI
28th Jul 2026669 AMAQI
28th Jul 20266810 AMAQI
28th Jul 20267611 AMAQI
28th Jul 20267012 PMAQI
28th Jul 2026461 PMAQI
28th Jul 2026582 PMAQI
28th Jul 2026543 PMAQI
28th Jul 2026714 PMAQI
28th Jul 2026625 PMAQI
28th Jul 2026436 PMAQI
28th Jul 2026427 PMAQI
28th Jul 2026718 PMAQI
28th Jul 2026629 PMAQI
28th Jul 20263310 PMAQI
28th Jul 20264811 PMAQI
29th Jul 20264212 AMAQI
29th Jul 2026521 AMAQI
29th Jul 2026462 AMAQI
29th Jul 2026423 AMAQI
29th Jul 2026424 AMAQI
18°C13/22°C
29th Jul 2026485 AMAQI
29th Jul 2026506 AMAQI
29th Jul 2026487 AMAQI
29th Jul 2026468 AMAQI
29th Jul 2026559 AMAQI
29th Jul 20264010 AMAQI
29th Jul 20265611 AMAQI
29th Jul 20265412 PMAQI
29th Jul 2026461 PMAQI
29th Jul 2026482 PMAQI
29th Jul 2026513 PMAQI
29th Jul 2026314 PMAQI
29th Jul 2026445 PMAQI
29th Jul 2026466 PMAQI
29th Jul 2026447 PMAQI
29th Jul 2026388 PMAQI
29th Jul 2026449 PMAQI
29th Jul 20264010 PMAQI
29th Jul 20265011 PMAQI
30th Jul 20264612 AMAQI
30th Jul 2026381 AMAQI
30th Jul 2026382 AMAQI
30th Jul 2026463 AMAQI
30th Jul 2026624 AMAQI
17°C10/25°C
30th Jul 2026645 AMAQI
30th Jul 2026686 AMAQI
30th Jul 2026427 AMAQI
30th Jul 2026468 AMAQI
30th Jul 2026529 AMAQI
30th Jul 20265710 AMAQI
30th Jul 20265411 AMAQI
30th Jul 20264612 PMAQI
30th Jul 2026461 PMAQI
30th Jul 2026442 PMAQI
30th Jul 2026493 PMAQI
30th Jul 2026424 PMAQI
30th Jul 2026405 PMAQI
30th Jul 2026546 PMAQI
30th Jul 2026747 PMAQI
30th Jul 2026708 PMAQI
30th Jul 2026749 PMAQI
30th Jul 20266810 PMAQI
30th Jul 20267011 PMAQI
31st Jul 20264912 AMAQI
31st Jul 2026531 AMAQI
31st Jul 2026462 AMAQI
31st Jul 2026423 AMAQI
31st Jul 2026754 AMAQI
18°C11/26°C
31st Jul 2026705 AMAQI
31st Jul 2026686 AMAQI
31st Jul 20261287 AMAQI
31st Jul 2026808 AMAQI
31st Jul 2026809 AMAQI
31st Jul 20267210 AMAQI
31st Jul 20266611 AMAQI
31st Jul 20266812 PMAQI
31st Jul 2026441 PMAQI
31st Jul 2026592 PMAQI
31st Jul 2026593 PMAQI
31st Jul 2026624 PMAQI
31st Jul 2026565 PMAQI
31st Jul 2026516 PMAQI
31st Jul 2026467 PMAQI
31st Jul 2026408 PMAQI
31st Jul 2026459 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20265811 PMAQI
1st Aug 20267112 AMAQI
1st Aug 2026461 AMAQI
1st Aug 2026722 AMAQI
1st Aug 2026783 AMAQI
1st Aug 2026664 AMAQI
19°C11/28°C
1st Aug 2026765 AMAQI
1st Aug 2026886 AMAQI
1st Aug 2026857 AMAQI
1st Aug 2026838 AMAQI
1st Aug 2026909 AMAQI
1st Aug 20267010 AMAQI
1st Aug 20268911 AMAQI
1st Aug 20266612 PMAQI
1st Aug 2026781 PMAQI
1st Aug 2026742 PMAQI
1st Aug 2026643 PMAQI
1st Aug 2026594 PMAQI
1st Aug 2026405 PMAQI
1st Aug 2026266 PMAQI
1st Aug 2026607 PMAQI
1st Aug 2026588 PMAQI
1st Aug 2026529 PMAQI
1st Aug 20261810 PMAQI
1st Aug 20261811 PMAQI
2nd Aug 20265412 AMAQI
2nd Aug 2026561 AMAQI
2nd Aug 2026592 AMAQI
2nd Aug 2026503 AMAQI
2nd Aug 2026604 AMAQI
17°C15/22°C
2nd Aug 2026655 AMAQI
2nd Aug 2026646 AMAQI
2nd Aug 2026427 AMAQI
2nd Aug 2026488 AMAQI
2nd Aug 2026499 AMAQI
2nd Aug 20265210 AMAQI
2nd Aug 20263311 AMAQI
2nd Aug 20266012 PMAQI
2nd Aug 2026591 PMAQI
2nd Aug 2026552 PMAQI
2nd Aug 2026583 PMAQI
2nd Aug 2026624 PMAQI
2nd Aug 2026425 PMAQI
2nd Aug 2026256 PMAQI
2nd Aug 2026627 PMAQI
2nd Aug 2026628 PMAQI
2nd Aug 2026589 PMAQI
2nd Aug 20266410 PMAQI
2nd Aug 20266011 PMAQI
3rd Aug 20266212 AMAQI
3rd Aug 2026681 AMAQI
3rd Aug 2026422 AMAQI
3rd Aug 2026473 AMAQI
3rd Aug 2026584 AMAQI
17°C11/23°C
3rd Aug 2026525 AMAQI
3rd Aug 2026346 AMAQI
3rd Aug 2026567 AMAQI
3rd Aug 2026608 AMAQI
3rd Aug 2026609 AMAQI
3rd Aug 20265610 AMAQI
3rd Aug 20264611 AMAQI
3rd Aug 20263612 PMAQI
3rd Aug 2026841 PMAQI
3rd Aug 20261402 PMAQI
3rd Aug 2026583 PMAQI
3rd Aug 2026524 PMAQI
3rd Aug 2026515 PMAQI
3rd Aug 2026466 PMAQI
3rd Aug 2026407 PMAQI
3rd Aug 2026408 PMAQI
3rd Aug 2026329 PMAQI
3rd Aug 20263810 PMAQI
3rd Aug 20264611 PMAQI
4th Aug 20264612 AMAQI
4th Aug 2026401 AMAQI
4th Aug 2026442 AMAQI
4th Aug 2026403 AMAQI
4th Aug 2026424 AMAQI
17°C10/25°C
4th Aug 2026445 AMAQI
4th Aug 2026446 AMAQI
4th Aug 2026427 AMAQI
4th Aug 2026428 AMAQI
4th Aug 2026489 AMAQI
4th Aug 20266910 AMAQI
4th Aug 20265611 AMAQI
4th Aug 20267012 PMAQI
4th Aug 2026531 PMAQI
4th Aug 2026512 PMAQI
4th Aug 2026653 PMAQI
4th Aug 2026464 PMAQI
4th Aug 2026515 PMAQI
4th Aug 2026506 PMAQI
4th Aug 2026507 PMAQI
4th Aug 2026488 PMAQI
4th Aug 2026659 PMAQI
4th Aug 20267610 PMAQI
4th Aug 20266811 PMAQI
5th Aug 20265612 AMAQI
5th Aug 2026561 AMAQI
5th Aug 2026622 AMAQI
5th Aug 2026623 AMAQI
5th Aug 2026624 AMAQI
18°C11/26°C
5th Aug 2026675 AMAQI
5 AM5th Aug 2026676 AMAQI
5th Aug 2026557 AMAQI
5th Aug 2026728 AMAQI
5th Aug 2026589 AMAQI
5th Aug 20268110 AMAQI
5th Aug 202611211 AMAQI
5th Aug 20268412 PMAQI
5th Aug 2026691 PMAQI
1 PM5th Aug 2026692 PMAQI
5th Aug 2026703 PMAQI
5th Aug 2026754 PMAQI
5th Aug 2026905 PMAQI
5th Aug 20261056 PMAQI
5th Aug 20261107 PMAQI
5th Aug 2026988 PMAQI
5th Aug 2026989 PMAQI
9 PM5th Aug 20268710 PMAQI
5th Aug 20267611 PMAQI
1 AM
4 AM
19°C11/28°C
Day time
Avg. Highest Time
2 PM
51AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
6 PM
40AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 2 PM (Avg. 51), while the lowest AQI was between 6 PM to 6 PM (Avg. 40).
Night time
Avg. Highest Time
3 AM - 4 AM
45AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 1 AM
39AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 4 AM (Avg. 45), while the lowest AQI was between 12 AM to 1 AM (Avg. 39).
2026 Days Vs Air Quality
S Second St, Mount Vernon, Washington, United States
2026
93%
199
7%
14
Total number of days with different AQI categories in last 217 days in 2026 (148 days remaining)
Good
199 DaysModerate
14 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 217 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
S Second St, Mount Vernon, Washington, 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
23AQI (US)
23AQI (US)
2nd January 2026
18AQI (US)
18AQI (US)
3rd January 2026
14AQI (US)
14AQI (US)
4th January 2026
15AQI (US)
15AQI (US)
5th January 2026
21AQI (US)
21AQI (US)
6th January 2026
20AQI (US)
20AQI (US)
7th January 2026
16AQI (US)
16AQI (US)
8th January 2026
17AQI (US)
17AQI (US)
9th January 2026
19AQI (US)
19AQI (US)
10th January 2026
18AQI (US)
18AQI (US)
11th January 2026
21AQI (US)
21AQI (US)
12th January 2026
16AQI (US)
16AQI (US)
13th January 2026
18AQI (US)
18AQI (US)
14th January 2026
18AQI (US)
18AQI (US)
15th January 2026
15AQI (US)
15AQI (US)
16th January 2026
20AQI (US)
20AQI (US)
17th January 2026
18AQI (US)
18AQI (US)
18th January 2026
20AQI (US)
20AQI (US)
19th January 2026
22AQI (US)
22AQI (US)
20th January 2026
21AQI (US)
21AQI (US)
21st January 2026
24AQI (US)
24AQI (US)
22nd January 2026
46AQI (US)
46AQI (US)
23rd January 2026
52AQI (US)
52AQI (US)
24th January 2026
48AQI (US)
48AQI (US)
25th January 2026
46AQI (US)
46AQI (US)
26th January 2026
45AQI (US)
45AQI (US)
27th January 2026
42AQI (US)
42AQI (US)
28th January 2026
45AQI (US)
45AQI (US)
29th January 2026
52AQI (US)
52AQI (US)
30th January 2026
45AQI (US)
45AQI (US)
31st January 2026
44AQI (US)
44AQI (US)
1st February 2026
50AQI (US)
50AQI (US)
2nd February 2026
48AQI (US)
48AQI (US)
3rd February 2026
48AQI (US)
48AQI (US)
4th February 2026
43AQI (US)
43AQI (US)
5th February 2026
44AQI (US)
44AQI (US)
6th February 2026
22AQI (US)
22AQI (US)
7th February 2026
28AQI (US)
28AQI (US)
8th February 2026
34AQI (US)
34AQI (US)
9th February 2026
35AQI (US)
35AQI (US)
10th February 2026
30AQI (US)
30AQI (US)
11th February 2026
24AQI (US)
24AQI (US)
12th February 2026
20AQI (US)
20AQI (US)
13th February 2026
29AQI (US)
29AQI (US)
14th February 2026
37AQI (US)
37AQI (US)
15th February 2026
31AQI (US)
31AQI (US)
16th February 2026
32AQI (US)
32AQI (US)
17th February 2026
38AQI (US)
38AQI (US)
18th February 2026
32AQI (US)
32AQI (US)
19th February 2026
31AQI (US)
31AQI (US)
20th February 2026
19AQI (US)
19AQI (US)
21st February 2026
25AQI (US)
25AQI (US)
22nd February 2026
32AQI (US)
32AQI (US)
23rd February 2026
31AQI (US)
31AQI (US)
24th February 2026
29AQI (US)
29AQI (US)
25th February 2026
29AQI (US)
29AQI (US)
26th February 2026
35AQI (US)
35AQI (US)
27th February 2026
23AQI (US)
23AQI (US)
28th February 2026
20AQI (US)
20AQI (US)
1st March 2026
27AQI (US)
27AQI (US)
2nd March 2026
32AQI (US)
32AQI (US)
3rd March 2026
25AQI (US)
25AQI (US)
4th March 2026
38AQI (US)
38AQI (US)
5th March 2026
30AQI (US)
30AQI (US)
6th March 2026
36AQI (US)
36AQI (US)
7th March 2026
43AQI (US)
43AQI (US)
8th March 2026
35AQI (US)
35AQI (US)
9th March 2026
38AQI (US)
38AQI (US)
10th March 2026
32AQI (US)
32AQI (US)
11th March 2026
40AQI (US)
40AQI (US)
12th March 2026
38AQI (US)
38AQI (US)
13th March 2026
35AQI (US)
35AQI (US)
14th March 2026
26AQI (US)
26AQI (US)
15th March 2026
33AQI (US)
33AQI (US)
16th March 2026
33AQI (US)
33AQI (US)
17th March 2026
34AQI (US)
34AQI (US)
18th March 2026
32AQI (US)
32AQI (US)
19th March 2026
32AQI (US)
32AQI (US)
20th March 2026
39AQI (US)
39AQI (US)
21st March 2026
32AQI (US)
32AQI (US)
22nd March 2026
31AQI (US)
31AQI (US)
23rd March 2026
18AQI (US)
18AQI (US)
24th March 2026
29AQI (US)
29AQI (US)
25th March 2026
30AQI (US)
30AQI (US)
26th March 2026
31AQI (US)
31AQI (US)
27th March 2026
24AQI (US)
24AQI (US)
28th March 2026
18AQI (US)
18AQI (US)
29th March 2026
26AQI (US)
26AQI (US)
30th March 2026
24AQI (US)
24AQI (US)
31st March 2026
21AQI (US)
21AQI (US)
1st April 2026
30AQI (US)
30AQI (US)
2nd April 2026
35AQI (US)
35AQI (US)
3rd April 2026
22AQI (US)
22AQI (US)
4th April 2026
26AQI (US)
26AQI (US)
5th April 2026
21AQI (US)
21AQI (US)
6th April 2026
20AQI (US)
20AQI (US)
7th April 2026
19AQI (US)
19AQI (US)
8th April 2026
19AQI (US)
19AQI (US)
9th April 2026
19AQI (US)
19AQI (US)
10th April 2026
20AQI (US)
20AQI (US)
11th April 2026
23AQI (US)
23AQI (US)
12th April 2026
16AQI (US)
16AQI (US)
13th April 2026
32AQI (US)
32AQI (US)
14th April 2026
36AQI (US)
36AQI (US)
15th April 2026
27AQI (US)
27AQI (US)
16th April 2026
24AQI (US)
24AQI (US)
17th April 2026
18th April 2026
20AQI (US)
20AQI (US)
19th April 2026
15AQI (US)
15AQI (US)
20th April 2026
15AQI (US)
15AQI (US)
21st April 2026
17AQI (US)
17AQI (US)
22nd April 2026
23rd April 2026
18AQI (US)
18AQI (US)
24th April 2026
18AQI (US)
18AQI (US)
25th April 2026
17AQI (US)
17AQI (US)
26th April 2026
20AQI (US)
20AQI (US)
27th April 2026
21AQI (US)
21AQI (US)
28th April 2026
16AQI (US)
16AQI (US)
29th April 2026
17AQI (US)
17AQI (US)
30th April 2026
25AQI (US)
25AQI (US)
1st May 2026
22AQI (US)
22AQI (US)
2nd May 2026
17AQI (US)
17AQI (US)
3rd May 2026
22AQI (US)
22AQI (US)
4th May 2026
26AQI (US)
26AQI (US)
5th May 2026
23AQI (US)
23AQI (US)
6th May 2026
16AQI (US)
16AQI (US)
7th May 2026
14AQI (US)
14AQI (US)
8th May 2026
20AQI (US)
20AQI (US)
9th May 2026
10th May 2026
33AQI (US)
33AQI (US)
11th May 2026
20AQI (US)
20AQI (US)
12th May 2026
26AQI (US)
26AQI (US)
13th May 2026
21AQI (US)
21AQI (US)
14th May 2026
24AQI (US)
24AQI (US)
15th May 2026
39AQI (US)
39AQI (US)
16th May 2026
50AQI (US)
50AQI (US)
17th May 2026
54AQI (US)
54AQI (US)
18th May 2026
50AQI (US)
50AQI (US)
19th May 2026
46AQI (US)
46AQI (US)
20th May 2026
35AQI (US)
35AQI (US)
21st May 2026
33AQI (US)
33AQI (US)
22nd May 2026
35AQI (US)
35AQI (US)
23rd May 2026
35AQI (US)
35AQI (US)
24th May 2026
33AQI (US)
33AQI (US)
25th May 2026
36AQI (US)
36AQI (US)
26th May 2026
27AQI (US)
27AQI (US)
27th May 2026
28AQI (US)
28AQI (US)
28th May 2026
27AQI (US)
27AQI (US)
29th May 2026
25AQI (US)
25AQI (US)
30th May 2026
26AQI (US)
26AQI (US)
31st May 2026
29AQI (US)
29AQI (US)
1st June 2026
26AQI (US)
26AQI (US)
2nd June 2026
30AQI (US)
30AQI (US)
3rd June 2026
29AQI (US)
29AQI (US)
4th June 2026
25AQI (US)
25AQI (US)
5th June 2026
27AQI (US)
27AQI (US)
6th June 2026
25AQI (US)
25AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
25AQI (US)
25AQI (US)
9th June 2026
26AQI (US)
26AQI (US)
10th June 2026
27AQI (US)
27AQI (US)
11th June 2026
27AQI (US)
27AQI (US)
12th June 2026
27AQI (US)
27AQI (US)
13th June 2026
20AQI (US)
20AQI (US)
14th June 2026
19AQI (US)
19AQI (US)
15th June 2026
21AQI (US)
21AQI (US)
16th June 2026
23AQI (US)
23AQI (US)
17th June 2026
24AQI (US)
24AQI (US)
18th June 2026
26AQI (US)
26AQI (US)
19th June 2026
25AQI (US)
25AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
21AQI (US)
21AQI (US)
22nd June 2026
24AQI (US)
24AQI (US)
23rd June 2026
24AQI (US)
24AQI (US)
24th June 2026
20AQI (US)
20AQI (US)
25th June 2026
19AQI (US)
19AQI (US)
26th June 2026
28AQI (US)
28AQI (US)
27th June 2026
29AQI (US)
29AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
23AQI (US)
23AQI (US)
30th June 2026
26AQI (US)
26AQI (US)
1st July 2026
25AQI (US)
25AQI (US)
2nd July 2026
27AQI (US)
27AQI (US)
3rd July 2026
27AQI (US)
27AQI (US)
4th July 2026
25AQI (US)
25AQI (US)
5th July 2026
24AQI (US)
24AQI (US)
6th July 2026
27AQI (US)
27AQI (US)
7th July 2026
26AQI (US)
26AQI (US)
8th July 2026
26AQI (US)
26AQI (US)
9th July 2026
28AQI (US)
28AQI (US)
10th July 2026
32AQI (US)
32AQI (US)
11th July 2026
30AQI (US)
30AQI (US)
12th July 2026
29AQI (US)
29AQI (US)
13th July 2026
30AQI (US)
30AQI (US)
14th July 2026
31AQI (US)
31AQI (US)
15th July 2026
24AQI (US)
24AQI (US)
16th July 2026
17AQI (US)
17AQI (US)
17th July 2026
45AQI (US)
45AQI (US)
18th July 2026
41AQI (US)
41AQI (US)
19th July 2026
36AQI (US)
36AQI (US)
20th July 2026
48AQI (US)
48AQI (US)
21st July 2026
50AQI (US)
50AQI (US)
22nd July 2026
59AQI (US)
59AQI (US)
23rd July 2026
57AQI (US)
57AQI (US)
24th July 2026
46AQI (US)
46AQI (US)
25th July 2026
50AQI (US)
50AQI (US)
26th July 2026
55AQI (US)
55AQI (US)
27th July 2026
55AQI (US)
55AQI (US)
28th July 2026
56AQI (US)
56AQI (US)
29th July 2026
46AQI (US)
46AQI (US)
30th July 2026
54AQI (US)
54AQI (US)
31st July 2026
61AQI (US)
61AQI (US)
1st August 2026
64AQI (US)
64AQI (US)
2nd August 2026
54AQI (US)
54AQI (US)
3rd August 2026
54AQI (US)
54AQI (US)
4th August 2026
52AQI (US)
52AQI (US)
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
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
28AQI (US)
32AQI (US)
31AQI (US)
22AQI (US)
30AQI (US)
25AQI (US)
38AQI (US)
56AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202630AQI (US)
29
2
28
31
28
29
1
30
24
7
4
199
14
Highest AQI (US) recorded in
August56AQI (US)
Lowest AQI (US) recorded in
April22AQI (US)
202521AQI (US)
31
28
31
30
31
30
31
31
30
26
5
30
31
360
5
Highest AQI (US) recorded in
October36AQI (US)
Lowest AQI (US) recorded in
May14AQI (US)
202416AQI (US)
30
29
31
30
31
30
31
30
1
30
31
29
1
31
363
2
Highest AQI (US) recorded in
August25AQI (US)
Lowest AQI (US) recorded in
September12AQI (US)
202320AQI (US)
31
28
31
30
30
1
30
30
1
27
4
30
31
28
31
357
5
1
Highest AQI (US) recorded in
May38AQI (US)
Lowest AQI (US) recorded in
April13AQI (US)
202224AQI (US)
29
22
31
30
31
30
22
3
27
3
20
9
1
1
28
2
31
304
14
1
1
Highest AQI (US) recorded in
October49AQI (US)
Lowest AQI (US) recorded in
April15AQI (US)
202116AQI (US)
29
28
26
30
16
12
6
6
10
24
23
26
236
Highest AQI (US) recorded in
August29AQI (US)
Lowest AQI (US) recorded in
February8AQI (US)
202024AQI (US)
9
20
18
30
31
31
17
4
2
5
31
26
31
244
4
2
5
Highest AQI (US) recorded in
September66AQI (US)
Lowest AQI (US) recorded in
June11AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2026(Avg.)
30AQI (US)Least Polluted Year Recorded
2021(Avg.)
16AQI (US)S Second St's annual 2026 AQI (US) (30) shows an average percentage change of 52.9% (worsened AQI (US)) compared to previous years: 2020 (24), 2021 (16), 2022 (24), 2023 (20), 2024 (16), 2025 (21).
