Longmont, Colorado, 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
Longmont, Colorado, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2024
100AQILowest AQI recorded on
25th Aug 2024
15AQISame Day Analysis (16th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 24 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Longmont, Colorado, United States
AQI
Day
Night
.
5 AM15th Aug 2026
8 PM
4 AM16th Aug 2026
Day time
Avg. Highest Time
9AM15th Aug
34AQI
Avg. Lowest Time
6AM15th Aug
10AQI
Night time
Avg. Highest Time
12AM16th Aug
42AQI
Avg. Lowest Time
1AM16th Aug
10AQI
In the last 24 hours,
Longmont's AQI reached its highest point of 42 at 12 AM during the Night, while the lowest point, 10, was recorded at 1 AM during the Night between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Longmont, Colorado, United States
JulAug
18th - 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 - 16th16th
Day
Night
18th Jul 2026335 AMAQI
18th Jul 2026336 AMAQI
18th Jul 2026337 AMAQI
18th Jul 2026338 AMAQI
18th Jul 2026339 AMAQI
18th Jul 20263310 AMAQI
18th Jul 20264211 AMAQI
18th Jul 20264612 PMAQI
18th Jul 2026331 PMAQI
18th Jul 2026462 PMAQI
18th Jul 2026503 PMAQI
18th Jul 2026464 PMAQI
18th Jul 2026485 PMAQI
18th Jul 2026486 PMAQI
18th Jul 2026467 PMAQI
18th Jul 2026428 PMAQI
18th Jul 2026429 PMAQI
18th Jul 20264410 PMAQI
18th Jul 20262911 PMAQI
19th Jul 20263312 AMAQI
19th Jul 2026361 AMAQI
19th Jul 2026332 AMAQI
19th Jul 2026333 AMAQI
19th Jul 2026424 AMAQI
27°C16/36°C
19th Jul 2026365 AMAQI
19th Jul 2026386 AMAQI
19th Jul 2026227 AMAQI
19th Jul 2026388 AMAQI
19th Jul 2026299 AMAQI
19th Jul 20263410 AMAQI
19th Jul 20264211 AMAQI
19th Jul 20263612 PMAQI
19th Jul 2026331 PMAQI
19th Jul 2026262 PMAQI
19th Jul 2026333 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026345 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026237 PMAQI
19th Jul 2026338 PMAQI
19th Jul 2026339 PMAQI
19th Jul 20262910 PMAQI
19th Jul 20262911 PMAQI
20th Jul 20263312 AMAQI
20th Jul 2026331 AMAQI
20th Jul 2026312 AMAQI
20th Jul 2026333 AMAQI
20th Jul 2026334 AMAQI
27°C16/37°C
20th Jul 2026335 AMAQI
20th Jul 2026316 AMAQI
20th Jul 2026317 AMAQI
20th Jul 2026288 AMAQI
20th Jul 2026339 AMAQI
20th Jul 20263010 AMAQI
20th Jul 20263311 AMAQI
20th Jul 20264412 PMAQI
20th Jul 2026511 PMAQI
20th Jul 2026522 PMAQI
20th Jul 2026483 PMAQI
20th Jul 2026504 PMAQI
20th Jul 2026425 PMAQI
20th Jul 2026366 PMAQI
20th Jul 2026467 PMAQI
20th Jul 2026528 PMAQI
20th Jul 20264910 PMAQI
20th Jul 20264611 PMAQI
21st Jul 20265212 AMAQI
21st Jul 2026361 AMAQI
21st Jul 2026462 AMAQI
21st Jul 2026453 AMAQI
21st Jul 2026364 AMAQI
28°C18/39°C
21st Jul 2026365 AMAQI
21st Jul 2026386 AMAQI
21st Jul 2026467 AMAQI
21st Jul 2026488 AMAQI
21st Jul 2026519 AMAQI
21st Jul 20265210 AMAQI
21st Jul 20265111 AMAQI
21st Jul 20265212 PMAQI
21st Jul 2026481 PMAQI
21st Jul 2026462 PMAQI
21st Jul 2026483 PMAQI
21st Jul 2026464 PMAQI
21st Jul 2026465 PMAQI
21st Jul 2026376 PMAQI
21st Jul 2026347 PMAQI
21st Jul 2026338 PMAQI
21st Jul 2026349 PMAQI
21st Jul 20263010 PMAQI
21st Jul 20262511 PMAQI
22nd Jul 20263812 AMAQI
22nd Jul 2026331 AMAQI
22nd Jul 2026272 AMAQI
22nd Jul 2026363 AMAQI
22nd Jul 2026334 AMAQI
27°C21/36°C
22nd Jul 2026345 AMAQI
22nd Jul 2026336 AMAQI
22nd Jul 2026337 AMAQI
22nd Jul 2026368 AMAQI
22nd Jul 2026389 AMAQI
22nd Jul 20264010 AMAQI
22nd Jul 20262711 AMAQI
22nd Jul 20263112 PMAQI
22nd Jul 2026291 PMAQI
22nd Jul 2026332 PMAQI
22nd Jul 2026313 PMAQI
22nd Jul 2026294 PMAQI
22nd Jul 2026295 PMAQI
22nd Jul 2026316 PMAQI
22nd Jul 2026317 PMAQI
22nd Jul 2026298 PMAQI
22nd Jul 2026299 PMAQI
22nd Jul 20263610 PMAQI
22nd Jul 20264611 PMAQI
23rd Jul 20264612 AMAQI
23rd Jul 2026461 AMAQI
23rd Jul 2026212 AMAQI
23rd Jul 2026193 AMAQI
23rd Jul 2026214 AMAQI
24°C19/34°C
23rd Jul 2026195 AMAQI
23rd Jul 2026176 AMAQI
23rd Jul 2026337 AMAQI
23rd Jul 2026388 AMAQI
23rd Jul 2026389 AMAQI
23rd Jul 20263810 AMAQI
23rd Jul 20263611 AMAQI
23rd Jul 20264412 PMAQI
23rd Jul 2026421 PMAQI
23rd Jul 2026332 PMAQI
23rd Jul 2026333 PMAQI
23rd Jul 2026334 PMAQI
23rd Jul 2026335 PMAQI
23rd Jul 2026256 PMAQI
23rd Jul 2026227 PMAQI
23rd Jul 2026288 PMAQI
23rd Jul 2026389 PMAQI
23rd Jul 20263610 PMAQI
23rd Jul 20264611 PMAQI
24th Jul 20264212 AMAQI
24th Jul 2026301 AMAQI
24th Jul 2026382 AMAQI
24th Jul 2026383 AMAQI
24th Jul 2026384 AMAQI
24°C19/31°C
24th Jul 2026385 AMAQI
24th Jul 2026426 AMAQI
24th Jul 2026417 AMAQI
24th Jul 2026338 AMAQI
24th Jul 2026339 AMAQI
24th Jul 20263610 AMAQI
24th Jul 20263311 AMAQI
24th Jul 20264012 PMAQI
24th Jul 2026331 PMAQI
24th Jul 2026302 PMAQI
24th Jul 2026303 PMAQI
24th Jul 2026364 PMAQI
24th Jul 2026385 PMAQI
24th Jul 2026296 PMAQI
24th Jul 2026287 PMAQI
24th Jul 2026468 PMAQI
24th Jul 2026339 PMAQI
24th Jul 20263610 PMAQI
24th Jul 20263811 PMAQI
25th Jul 20263612 AMAQI
25th Jul 2026341 AMAQI
25th Jul 2026342 AMAQI
25th Jul 2026423 AMAQI
25th Jul 2026294 AMAQI
26°C17/36°C
25th Jul 2026345 AMAQI
25th Jul 2026356 AMAQI
25th Jul 2026337 AMAQI
25th Jul 2026338 AMAQI
25th Jul 2026339 AMAQI
25th Jul 20263310 AMAQI
25th Jul 20265211 AMAQI
25th Jul 20265612 PMAQI
25th Jul 2026361 PMAQI
25th Jul 2026292 PMAQI
25th Jul 2026183 PMAQI
25th Jul 2026294 PMAQI
25th Jul 2026345 PMAQI
25th Jul 2026316 PMAQI
25th Jul 2026277 PMAQI
25th Jul 2026338 PMAQI
25th Jul 2026299 PMAQI
25th Jul 20262910 PMAQI
25th Jul 20262911 PMAQI
26th Jul 20262912 AMAQI
26th Jul 2026141 AMAQI
26th Jul 2026172 AMAQI
26th Jul 2026293 AMAQI
26th Jul 2026334 AMAQI
28°C19/40°C
26th Jul 2026295 AMAQI
26th Jul 2026336 AMAQI
26th Jul 2026337 AMAQI
26th Jul 2026338 AMAQI
26th Jul 2026339 AMAQI
26th Jul 20263310 AMAQI
26th Jul 20263611 AMAQI
26th Jul 20263612 PMAQI
26th Jul 2026331 PMAQI
26th Jul 2026302 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026364 PMAQI
26th Jul 2026365 PMAQI
26th Jul 2026216 PMAQI
26th Jul 2026297 PMAQI
26th Jul 2026348 PMAQI
26th Jul 2026329 PMAQI
26th Jul 20263410 PMAQI
26th Jul 20263811 PMAQI
27th Jul 20263612 AMAQI
27th Jul 2026331 AMAQI
27th Jul 2026312 AMAQI
27th Jul 2026293 AMAQI
27th Jul 2026254 AMAQI
29°C22/39°C
27th Jul 2026145 AMAQI
27th Jul 2026166 AMAQI
27th Jul 2026207 AMAQI
27th Jul 2026268 AMAQI
27th Jul 2026299 AMAQI
27th Jul 20263310 AMAQI
27th Jul 20263111 AMAQI
27th Jul 20263612 PMAQI
27th Jul 2026291 PMAQI
27th Jul 2026302 PMAQI
27th Jul 2026303 PMAQI
27th Jul 2026244 PMAQI
27th Jul 2026295 PMAQI
27th Jul 2026196 PMAQI
27th Jul 2026237 PMAQI
27th Jul 2026368 PMAQI
27th Jul 2026259 PMAQI
27th Jul 20263310 PMAQI
27th Jul 20262711 PMAQI
28th Jul 20265712 AMAQI
28th Jul 2026501 AMAQI
28th Jul 2026322 AMAQI
28th Jul 2026323 AMAQI
28th Jul 2026364 AMAQI
25°C21/33°C
28th Jul 2026335 AMAQI
28th Jul 2026406 AMAQI
28th Jul 2026367 AMAQI
28th Jul 2026268 AMAQI
28th Jul 2026279 AMAQI
28th Jul 20265110 AMAQI
28th Jul 20263611 AMAQI
28th Jul 20264012 PMAQI
28th Jul 2026491 PMAQI
28th Jul 2026502 PMAQI
28th Jul 2026343 PMAQI
28th Jul 2026364 PMAQI
28th Jul 2026335 PMAQI
28th Jul 2026266 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026278 PMAQI
28th Jul 2026339 PMAQI
28th Jul 20263310 PMAQI
28th Jul 20263311 PMAQI
29th Jul 20263312 AMAQI
29th Jul 2026401 AMAQI
29th Jul 2026382 AMAQI
29th Jul 2026413 AMAQI
29th Jul 2026404 AMAQI
23°C17/34°C
29th Jul 2026485 AMAQI
29th Jul 2026526 AMAQI
29th Jul 2026477 AMAQI
29th Jul 2026608 AMAQI
29th Jul 2026589 AMAQI
29th Jul 20265210 AMAQI
29th Jul 20263411 AMAQI
29th Jul 20262912 PMAQI
29th Jul 2026361 PMAQI
29th Jul 2026332 PMAQI
29th Jul 2026293 PMAQI
29th Jul 2026304 PMAQI
29th Jul 2026255 PMAQI
29th Jul 2026386 PMAQI
29th Jul 2026467 PMAQI
29th Jul 2026338 PMAQI
29th Jul 2026309 PMAQI
29th Jul 20264210 PMAQI
29th Jul 20263811 PMAQI
30th Jul 20264012 AMAQI
30th Jul 2026331 AMAQI
30th Jul 2026312 AMAQI
30th Jul 2026423 AMAQI
30th Jul 2026314 AMAQI
22°C17/33°C
30th Jul 2026295 AMAQI
30th Jul 2026246 AMAQI
30th Jul 2026297 AMAQI
30th Jul 2026318 AMAQI
30th Jul 2026319 AMAQI
30th Jul 20262910 AMAQI
30th Jul 20263211 AMAQI
30th Jul 20263612 PMAQI
30th Jul 2026381 PMAQI
30th Jul 2026322 PMAQI
30th Jul 2026313 PMAQI
30th Jul 2026334 PMAQI
30th Jul 2026335 PMAQI
30th Jul 2026276 PMAQI
30th Jul 2026277 PMAQI
30th Jul 2026338 PMAQI
30th Jul 2026339 PMAQI
30th Jul 20263310 PMAQI
30th Jul 20263311 PMAQI
31st Jul 20263312 AMAQI
31st Jul 2026191 AMAQI
31st Jul 2026292 AMAQI
31st Jul 2026253 AMAQI
31st Jul 2026314 AMAQI
25°C16/34°C
31st Jul 2026335 AMAQI
31st Jul 2026336 AMAQI
31st Jul 2026337 AMAQI
31st Jul 2026318 AMAQI
31st Jul 2026339 AMAQI
31st Jul 20263310 AMAQI
31st Jul 20263611 AMAQI
31st Jul 20263612 PMAQI
31st Jul 2026331 PMAQI
31st Jul 2026332 PMAQI
31st Jul 2026363 PMAQI
31st Jul 2026384 PMAQI
31st Jul 2026335 PMAQI
31st Jul 2026366 PMAQI
31st Jul 2026387 PMAQI
31st Jul 2026388 PMAQI
31st Jul 2026339 PMAQI
31st Jul 20263610 PMAQI
31st Jul 20263611 PMAQI
1st Aug 20263812 AMAQI
1st Aug 2026421 AMAQI
1st Aug 2026402 AMAQI
1st Aug 2026403 AMAQI
1st Aug 2026404 AMAQI
26°C18/37°C
1st Aug 2026425 AMAQI
1st Aug 2026406 AMAQI
1st Aug 2026387 AMAQI
1st Aug 2026388 AMAQI
1st Aug 2026409 AMAQI
1st Aug 20264410 AMAQI
1st Aug 20264611 AMAQI
1st Aug 20264612 PMAQI
1st Aug 2026461 PMAQI
1st Aug 2026462 PMAQI
1st Aug 2026463 PMAQI
1st Aug 2026404 PMAQI
1st Aug 2026335 PMAQI
1st Aug 2026336 PMAQI
1st Aug 2026337 PMAQI
1st Aug 2026298 PMAQI
1st Aug 2026339 PMAQI
1st Aug 20263310 PMAQI
1st Aug 20262711 PMAQI
2nd Aug 20262912 AMAQI
2nd Aug 2026331 AMAQI
2nd Aug 2026332 AMAQI
2nd Aug 2026363 AMAQI
2nd Aug 2026314 AMAQI
25°C15/38°C
2nd Aug 2026315 AMAQI
2nd Aug 2026316 AMAQI
2nd Aug 2026317 AMAQI
2nd Aug 2026338 AMAQI
2nd Aug 2026319 AMAQI
2nd Aug 20263310 AMAQI
2nd Aug 20263311 AMAQI
2nd Aug 20263312 PMAQI
2nd Aug 2026331 PMAQI
2nd Aug 2026332 PMAQI
2nd Aug 2026333 PMAQI
2nd Aug 2026274 PMAQI
2nd Aug 2026385 PMAQI
2nd Aug 2026316 PMAQI
2nd Aug 2026487 PMAQI
2nd Aug 2026558 PMAQI
2nd Aug 2026299 PMAQI
2nd Aug 20263310 PMAQI
2nd Aug 20263111 PMAQI
3rd Aug 20263612 AMAQI
3rd Aug 2026421 AMAQI
3rd Aug 2026482 AMAQI
3rd Aug 2026513 AMAQI
3rd Aug 2026544 AMAQI
28°C17/39°C
3rd Aug 2026595 AMAQI
3rd Aug 2026586 AMAQI
3rd Aug 2026637 AMAQI
3rd Aug 2026658 AMAQI
3rd Aug 2026649 AMAQI
3rd Aug 20266810 AMAQI
3rd Aug 20266611 AMAQI
3rd Aug 20266312 PMAQI
3rd Aug 2026641 PMAQI
3rd Aug 2026602 PMAQI
3rd Aug 2026623 PMAQI
3rd Aug 2026574 PMAQI
3rd Aug 2026585 PMAQI
3rd Aug 2026626 PMAQI
3rd Aug 2026707 PMAQI
3rd Aug 2026788 PMAQI
3rd Aug 2026869 PMAQI
3rd Aug 20268810 PMAQI
3rd Aug 20269211 PMAQI
4th Aug 20268212 AMAQI
4th Aug 2026761 AMAQI
4th Aug 2026752 AMAQI
4th Aug 2026723 AMAQI
4th Aug 2026724 AMAQI
28°C19/39°C
4th Aug 2026745 AMAQI
4th Aug 2026716 AMAQI
4th Aug 2026677 AMAQI
4th Aug 2026688 AMAQI
4th Aug 2026629 AMAQI
4th Aug 20266210 AMAQI
4th Aug 20266011 AMAQI
4th Aug 20266212 PMAQI
4th Aug 2026651 PMAQI
4th Aug 2026682 PMAQI
4th Aug 2026663 PMAQI
4th Aug 2026704 PMAQI
4th Aug 2026685 PMAQI
4th Aug 2026706 PMAQI
4th Aug 2026727 PMAQI
4th Aug 2026738 PMAQI
4th Aug 2026689 PMAQI
4th Aug 20267210 PMAQI
4th Aug 20266211 PMAQI
5th Aug 20265812 AMAQI
5th Aug 2026551 AMAQI
5th Aug 2026582 AMAQI
5th Aug 2026553 AMAQI
5th Aug 2026574 AMAQI
19°C13/25°C
5th Aug 2026565 AMAQI
5th Aug 2026566 AMAQI
5th Aug 2026567 AMAQI
5th Aug 2026568 AMAQI
5th Aug 2026569 AMAQI
5th Aug 20265710 AMAQI
5th Aug 20265811 AMAQI
5th Aug 20265812 PMAQI
5th Aug 2026631 PMAQI
5th Aug 2026602 PMAQI
5th Aug 2026623 PMAQI
5th Aug 2026624 PMAQI
5th Aug 2026625 PMAQI
5th Aug 2026586 PMAQI
5th Aug 2026597 PMAQI
5th Aug 2026588 PMAQI
5th Aug 2026639 PMAQI
5th Aug 20266010 PMAQI
5th Aug 20266011 PMAQI
6th Aug 20266312 AMAQI
6th Aug 2026611 AMAQI
6th Aug 2026602 AMAQI
6th Aug 2026583 AMAQI
6th Aug 2026574 AMAQI
18°C7/30°C
6th Aug 2026535 AMAQI
6th Aug 2026546 AMAQI
6th Aug 2026547 AMAQI
6th Aug 2026528 AMAQI
6th Aug 2026569 AMAQI
6th Aug 20265610 AMAQI
6th Aug 20265711 AMAQI
6th Aug 20265812 PMAQI
6th Aug 2026581 PMAQI
6th Aug 2026582 PMAQI
6th Aug 2026623 PMAQI
6th Aug 2026584 PMAQI
6th Aug 2026585 PMAQI
6th Aug 2026576 PMAQI
6th Aug 2026547 PMAQI
6th Aug 2026568 PMAQI
6th Aug 2026559 PMAQI
6th Aug 20265410 PMAQI
6th Aug 20265411 PMAQI
7th Aug 20265612 AMAQI
7th Aug 2026571 AMAQI
7th Aug 2026562 AMAQI
7th Aug 2026583 AMAQI
7th Aug 2026554 AMAQI
24°C12/37°C
7th Aug 2026545 AMAQI
7th Aug 2026566 AMAQI
7th Aug 2026567 AMAQI
7th Aug 2026568 AMAQI
7th Aug 2026669 AMAQI
7th Aug 20266410 AMAQI
7th Aug 20266311 AMAQI
7th Aug 20266212 PMAQI
7th Aug 2026601 PMAQI
7th Aug 2026642 PMAQI
7th Aug 2026623 PMAQI
7th Aug 2026644 PMAQI
7th Aug 2026635 PMAQI
7th Aug 2026656 PMAQI
7th Aug 2026647 PMAQI
7th Aug 2026648 PMAQI
7th Aug 2026649 PMAQI
7th Aug 20266010 PMAQI
7th Aug 20265911 PMAQI
8th Aug 20266012 AMAQI
8th Aug 2026621 AMAQI
8th Aug 2026632 AMAQI
8th Aug 2026573 AMAQI
8th Aug 2026604 AMAQI
25°C14/38°C
8th Aug 2026585 AMAQI
8th Aug 2026596 AMAQI
8th Aug 2026617 AMAQI
8th Aug 2026628 AMAQI
8th Aug 2026599 AMAQI
8th Aug 20265810 AMAQI
8th Aug 20265511 AMAQI
8th Aug 20265512 PMAQI
8th Aug 2026561 PMAQI
8th Aug 2026582 PMAQI
8th Aug 2026583 PMAQI
8th Aug 2026564 PMAQI
8th Aug 2026525 PMAQI
8th Aug 2026486 PMAQI
8th Aug 2026507 PMAQI
8th Aug 2026468 PMAQI
8th Aug 2026469 PMAQI
8th Aug 20264610 PMAQI
8th Aug 20264611 PMAQI
9th Aug 20264612 AMAQI
9th Aug 2026461 AMAQI
9th Aug 2026462 AMAQI
9th Aug 2026463 AMAQI
9th Aug 2026444 AMAQI
27°C16/38°C
9th Aug 2026465 AMAQI
9th Aug 2026446 AMAQI
9th Aug 2026447 AMAQI
9th Aug 2026428 AMAQI
9th Aug 2026449 AMAQI
9th Aug 20264210 AMAQI
9th Aug 20264211 AMAQI
9th Aug 20263812 PMAQI
9th Aug 2026381 PMAQI
9th Aug 2026402 PMAQI
9th Aug 2026443 PMAQI
9th Aug 2026444 PMAQI
9th Aug 2026425 PMAQI
9th Aug 2026446 PMAQI
9th Aug 2026447 PMAQI
9th Aug 2026468 PMAQI
9th Aug 2026449 PMAQI
9th Aug 20264210 PMAQI
9th Aug 20264411 PMAQI
10th Aug 20264612 AMAQI
10th Aug 2026461 AMAQI
10th Aug 2026482 AMAQI
10th Aug 2026463 AMAQI
10th Aug 2026464 AMAQI
27°C18/37°C
10th Aug 2026445 AMAQI
10th Aug 2026466 AMAQI
10th Aug 2026467 AMAQI
10th Aug 2026468 AMAQI
10th Aug 2026549 AMAQI
10th Aug 20265210 AMAQI
10th Aug 20265411 AMAQI
10th Aug 20265412 PMAQI
10th Aug 2026601 PMAQI
10th Aug 2026502 PMAQI
10th Aug 2026513 PMAQI
10th Aug 2026504 PMAQI
10th Aug 2026425 PMAQI
10th Aug 2026406 PMAQI
10th Aug 2026367 PMAQI
10th Aug 2026428 PMAQI
10th Aug 2026429 PMAQI
10th Aug 20264610 PMAQI
10th Aug 20263811 PMAQI
11th Aug 20264212 AMAQI
11th Aug 2026381 AMAQI
11th Aug 2026382 AMAQI
11th Aug 2026363 AMAQI
11th Aug 2026384 AMAQI
25°C18/35°C
11th Aug 2026405 AMAQI
11th Aug 2026426 AMAQI
11th Aug 2026467 AMAQI
11th Aug 2026428 AMAQI
11th Aug 2026429 AMAQI
11th Aug 20265010 AMAQI
11th Aug 20264911 AMAQI
11th Aug 20264212 PMAQI
11th Aug 2026431 PMAQI
11th Aug 2026402 PMAQI
11th Aug 2026363 PMAQI
11th Aug 2026334 PMAQI
11th Aug 2026335 PMAQI
11th Aug 2026336 PMAQI
11th Aug 2026337 PMAQI
11th Aug 2026318 PMAQI
11th Aug 2026279 PMAQI
11th Aug 20263110 PMAQI
11th Aug 20262911 PMAQI
12th Aug 20263312 AMAQI
12th Aug 2026291 AMAQI
12th Aug 2026252 AMAQI
12th Aug 2026273 AMAQI
12th Aug 2026294 AMAQI
26°C18/36°C
12th Aug 2026335 AMAQI
12th Aug 2026296 AMAQI
12th Aug 2026277 AMAQI
12th Aug 2026368 AMAQI
12th Aug 2026569 AMAQI
12th Aug 20265410 AMAQI
12th Aug 20263611 AMAQI
12th Aug 20263312 PMAQI
12th Aug 2026331 PMAQI
12th Aug 2026382 PMAQI
12th Aug 2026393 PMAQI
12th Aug 2026404 PMAQI
12th Aug 2026335 PMAQI
12th Aug 2026336 PMAQI
12th Aug 2026317 PMAQI
12th Aug 2026278 PMAQI
12th Aug 2026299 PMAQI
12th Aug 20262910 PMAQI
12th Aug 20262911 PMAQI
13th Aug 20264212 AMAQI
13th Aug 2026381 AMAQI
13th Aug 2026382 AMAQI
13th Aug 2026343 AMAQI
13th Aug 2026334 AMAQI
23°C17/35°C
13th Aug 2026335 AMAQI
13th Aug 2026366 AMAQI
13th Aug 2026367 AMAQI
13th Aug 2026388 AMAQI
13th Aug 2026429 AMAQI
13th Aug 20263810 AMAQI
13th Aug 20262711 AMAQI
13th Aug 20263312 PMAQI
13th Aug 2026401 PMAQI
13th Aug 2026422 PMAQI
13th Aug 2026423 PMAQI
13th Aug 2026334 PMAQI
13th Aug 2026335 PMAQI
13th Aug 2026336 PMAQI
13th Aug 2026317 PMAQI
13th Aug 2026338 PMAQI
13th Aug 2026319 PMAQI
13th Aug 20262910 PMAQI
13th Aug 20263611 PMAQI
14th Aug 20263312 AMAQI
14th Aug 2026331 AMAQI
14th Aug 2026332 AMAQI
14th Aug 2026303 AMAQI
14th Aug 2026404 AMAQI
19°C15/27°C
14th Aug 2026365 AMAQI
14th Aug 2026276 AMAQI
14th Aug 2026337 AMAQI
14th Aug 2026338 AMAQI
14th Aug 2026339 AMAQI
14th Aug 20263610 AMAQI
14th Aug 20263811 AMAQI
14th Aug 20263312 PMAQI
14th Aug 2026361 PMAQI
14th Aug 2026362 PMAQI
14th Aug 2026403 PMAQI
14th Aug 2026204 PMAQI
14th Aug 2026185 PMAQI
14th Aug 2026156 PMAQI
14th Aug 2026127 PMAQI
14th Aug 2026228 PMAQI
14th Aug 2026479 PMAQI
14th Aug 20263610 PMAQI
14th Aug 20263311 PMAQI
15th Aug 20263112 AMAQI
15th Aug 2026201 AMAQI
15th Aug 202692 AMAQI
15th Aug 2026343 AMAQI
15th Aug 2026364 AMAQI
20°C13/31°C
15th Aug 2026205 AMAQI
15th Aug 2026106 AMAQI
15th Aug 2026197 AMAQI
15th Aug 2026198 AMAQI
15th Aug 2026349 AMAQI
15th Aug 20263310 AMAQI
15th Aug 20262711 AMAQI
15th Aug 20262312 PMAQI
15th Aug 2026231 PMAQI
15th Aug 2026272 PMAQI
15th Aug 2026123 PMAQI
15th Aug 2026294 PMAQI
15th Aug 2026295 PMAQI
15th Aug 2026226 PMAQI
15th Aug 2026337 PMAQI
15th Aug 2026318 PMAQI
15th Aug 2026199 PMAQI
15th Aug 20263310 PMAQI
15th Aug 20262911 PMAQI
16th Aug 20264212 AMAQI
16th Aug 2026101 AMAQI
16th Aug 2026212 AMAQI
16th Aug 2026123 AMAQI
16th Aug 2026334 AMAQI
21°C16/30°C
16th Aug 2026385 AMAQI
5 AM16th Aug 2026316 AMAQI
16th Aug 2026317 AMAQI
16th Aug 2026338 AMAQI
16th Aug 2026389 AMAQI
16th Aug 20263410 AMAQI
16th Aug 20263411 AMAQI
16th Aug 20263812 PMAQI
12 PM16th Aug 2026311 PMAQI
16th Aug 2026312 PMAQI
16th Aug 2026213 PMAQI
16th Aug 2026124 PMAQI
16th Aug 2026115 PMAQI
16th Aug 2026126 PMAQI
16th Aug 2026127 PMAQI
16th Aug 2026108 PMAQI
8 PM16th Aug 2026109 PMAQI
16th Aug 2026910 PMAQI
16th Aug 20261011 PMAQI
12 AM
4 AM
23°C13/34°C
Day time
Avg. Highest Time
9 AM - 10 AM
44AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
6 PM
36AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 10 AM (Avg. 44), while the lowest AQI was between 6 PM to 6 PM (Avg. 36).
Night time
Avg. Highest Time
12 AM
43AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
1 AM - 11 PM
39AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 43), while the lowest AQI was between 1 AM to 11 PM (Avg. 39).
2026 Days Vs Air Quality
Longmont, Colorado, United States
2026
97%
218
3%
7
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Good
218 DaysModerate
7 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2026, 97% of 228 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
Longmont, Colorado, 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
29AQI (US)
29AQI (US)
2nd January 2026
26AQI (US)
26AQI (US)
3rd January 2026
30AQI (US)
30AQI (US)
4th January 2026
19AQI (US)
19AQI (US)
5th January 2026
26AQI (US)
26AQI (US)
6th January 2026
20AQI (US)
20AQI (US)
7th January 2026
32AQI (US)
32AQI (US)
8th January 2026
21AQI (US)
21AQI (US)
9th January 2026
17AQI (US)
17AQI (US)
10th January 2026
19AQI (US)
19AQI (US)
11th January 2026
31AQI (US)
31AQI (US)
12th January 2026
47AQI (US)
47AQI (US)
13th January 2026
26AQI (US)
26AQI (US)
14th January 2026
17AQI (US)
17AQI (US)
15th January 2026
25AQI (US)
25AQI (US)
16th January 2026
30AQI (US)
30AQI (US)
17th January 2026
18AQI (US)
18AQI (US)
18th January 2026
18AQI (US)
18AQI (US)
19th January 2026
23AQI (US)
23AQI (US)
20th January 2026
52AQI (US)
52AQI (US)
21st January 2026
23AQI (US)
23AQI (US)
22nd January 2026
31AQI (US)
31AQI (US)
23rd January 2026
26AQI (US)
26AQI (US)
24th January 2026
31AQI (US)
31AQI (US)
25th January 2026
25AQI (US)
25AQI (US)
26th January 2026
20AQI (US)
20AQI (US)
27th January 2026
20AQI (US)
20AQI (US)
28th January 2026
34AQI (US)
34AQI (US)
29th January 2026
35AQI (US)
35AQI (US)
30th January 2026
40AQI (US)
40AQI (US)
31st January 2026
26AQI (US)
26AQI (US)
1st February 2026
26AQI (US)
26AQI (US)
2nd February 2026
36AQI (US)
36AQI (US)
3rd February 2026
30AQI (US)
30AQI (US)
4th February 2026
25AQI (US)
25AQI (US)
5th February 2026
35AQI (US)
35AQI (US)
6th February 2026
32AQI (US)
32AQI (US)
7th February 2026
31AQI (US)
31AQI (US)
8th February 2026
24AQI (US)
24AQI (US)
9th February 2026
32AQI (US)
32AQI (US)
10th February 2026
25AQI (US)
25AQI (US)
11th February 2026
28AQI (US)
28AQI (US)
12th February 2026
31AQI (US)
31AQI (US)
13th February 2026
27AQI (US)
27AQI (US)
14th February 2026
27AQI (US)
27AQI (US)
15th February 2026
20AQI (US)
20AQI (US)
16th February 2026
28AQI (US)
28AQI (US)
17th February 2026
32AQI (US)
32AQI (US)
18th February 2026
21AQI (US)
21AQI (US)
19th February 2026
24AQI (US)
24AQI (US)
20th February 2026
20AQI (US)
20AQI (US)
21st February 2026
19AQI (US)
19AQI (US)
22nd February 2026
23AQI (US)
23AQI (US)
23rd February 2026
29AQI (US)
29AQI (US)
24th February 2026
29AQI (US)
29AQI (US)
25th February 2026
29AQI (US)
29AQI (US)
26th February 2026
20AQI (US)
20AQI (US)
27th February 2026
20AQI (US)
20AQI (US)
28th February 2026
18AQI (US)
18AQI (US)
1st March 2026
24AQI (US)
24AQI (US)
2nd March 2026
36AQI (US)
36AQI (US)
3rd March 2026
20AQI (US)
20AQI (US)
4th March 2026
20AQI (US)
20AQI (US)
5th March 2026
23AQI (US)
23AQI (US)
6th March 2026
28AQI (US)
28AQI (US)
7th March 2026
20AQI (US)
20AQI (US)
8th March 2026
18AQI (US)
18AQI (US)
9th March 2026
22AQI (US)
22AQI (US)
10th March 2026
22AQI (US)
22AQI (US)
11th March 2026
19AQI (US)
19AQI (US)
12th March 2026
25AQI (US)
25AQI (US)
13th March 2026
26AQI (US)
26AQI (US)
14th March 2026
24AQI (US)
24AQI (US)
15th March 2026
22AQI (US)
22AQI (US)
16th March 2026
22AQI (US)
22AQI (US)
17th March 2026
20AQI (US)
20AQI (US)
18th March 2026
23AQI (US)
23AQI (US)
19th March 2026
24AQI (US)
24AQI (US)
20th March 2026
28AQI (US)
28AQI (US)
21st March 2026
20AQI (US)
20AQI (US)
22nd March 2026
24AQI (US)
24AQI (US)
23rd March 2026
26AQI (US)
26AQI (US)
24th March 2026
24AQI (US)
24AQI (US)
25th March 2026
28AQI (US)
28AQI (US)
26th March 2026
42AQI (US)
42AQI (US)
27th March 2026
24AQI (US)
24AQI (US)
28th March 2026
26AQI (US)
26AQI (US)
29th March 2026
22AQI (US)
22AQI (US)
30th March 2026
28AQI (US)
28AQI (US)
31st March 2026
32AQI (US)
32AQI (US)
1st April 2026
33AQI (US)
33AQI (US)
2nd April 2026
21AQI (US)
21AQI (US)
3rd April 2026
28AQI (US)
28AQI (US)
4th April 2026
16AQI (US)
16AQI (US)
5th April 2026
20AQI (US)
20AQI (US)
6th April 2026
24AQI (US)
24AQI (US)
7th April 2026
29AQI (US)
29AQI (US)
8th April 2026
32AQI (US)
32AQI (US)
9th April 2026
26AQI (US)
26AQI (US)
10th April 2026
34AQI (US)
34AQI (US)
11th April 2026
24AQI (US)
24AQI (US)
12th April 2026
16AQI (US)
16AQI (US)
13th April 2026
19AQI (US)
19AQI (US)
14th April 2026
20AQI (US)
20AQI (US)
15th April 2026
21AQI (US)
21AQI (US)
16th April 2026
21AQI (US)
21AQI (US)
17th April 2026
18th April 2026
20AQI (US)
20AQI (US)
19th April 2026
18AQI (US)
18AQI (US)
20th April 2026
26AQI (US)
26AQI (US)
21st April 2026
25AQI (US)
25AQI (US)
22nd April 2026
23rd April 2026
31AQI (US)
31AQI (US)
24th April 2026
23AQI (US)
23AQI (US)
25th April 2026
20AQI (US)
20AQI (US)
26th April 2026
18AQI (US)
18AQI (US)
27th April 2026
15AQI (US)
15AQI (US)
28th April 2026
20AQI (US)
20AQI (US)
29th April 2026
15AQI (US)
15AQI (US)
30th April 2026
16AQI (US)
16AQI (US)
1st May 2026
18AQI (US)
18AQI (US)
2nd May 2026
13AQI (US)
13AQI (US)
3rd May 2026
13AQI (US)
13AQI (US)
4th May 2026
20AQI (US)
20AQI (US)
5th May 2026
27AQI (US)
27AQI (US)
6th May 2026
22AQI (US)
22AQI (US)
7th May 2026
15AQI (US)
15AQI (US)
8th May 2026
17AQI (US)
17AQI (US)
9th May 2026
10th May 2026
21AQI (US)
21AQI (US)
11th May 2026
18AQI (US)
18AQI (US)
12th May 2026
29AQI (US)
29AQI (US)
13th May 2026
39AQI (US)
39AQI (US)
14th May 2026
32AQI (US)
32AQI (US)
15th May 2026
29AQI (US)
29AQI (US)
16th May 2026
26AQI (US)
26AQI (US)
17th May 2026
19AQI (US)
19AQI (US)
18th May 2026
34AQI (US)
34AQI (US)
19th May 2026
30AQI (US)
30AQI (US)
20th May 2026
19AQI (US)
19AQI (US)
21st May 2026
19AQI (US)
19AQI (US)
22nd May 2026
20AQI (US)
20AQI (US)
23rd May 2026
25AQI (US)
25AQI (US)
24th May 2026
18AQI (US)
18AQI (US)
25th May 2026
18AQI (US)
18AQI (US)
26th May 2026
21AQI (US)
21AQI (US)
27th May 2026
15AQI (US)
15AQI (US)
28th May 2026
18AQI (US)
18AQI (US)
29th May 2026
19AQI (US)
19AQI (US)
30th May 2026
16AQI (US)
16AQI (US)
31st May 2026
12AQI (US)
12AQI (US)
1st June 2026
17AQI (US)
17AQI (US)
2nd June 2026
18AQI (US)
18AQI (US)
3rd June 2026
24AQI (US)
24AQI (US)
4th June 2026
24AQI (US)
24AQI (US)
5th June 2026
28AQI (US)
28AQI (US)
6th June 2026
26AQI (US)
26AQI (US)
7th June 2026
24AQI (US)
24AQI (US)
8th June 2026
30AQI (US)
30AQI (US)
9th June 2026
23AQI (US)
23AQI (US)
10th June 2026
31AQI (US)
31AQI (US)
11th June 2026
27AQI (US)
27AQI (US)
12th June 2026
28AQI (US)
28AQI (US)
13th June 2026
27AQI (US)
27AQI (US)
14th June 2026
20AQI (US)
20AQI (US)
15th June 2026
27AQI (US)
27AQI (US)
16th June 2026
31AQI (US)
31AQI (US)
17th June 2026
39AQI (US)
39AQI (US)
18th June 2026
33AQI (US)
33AQI (US)
19th June 2026
42AQI (US)
42AQI (US)
20th June 2026
41AQI (US)
41AQI (US)
21st June 2026
27AQI (US)
27AQI (US)
22nd June 2026
27AQI (US)
27AQI (US)
23rd June 2026
36AQI (US)
36AQI (US)
24th June 2026
25AQI (US)
25AQI (US)
25th June 2026
18AQI (US)
18AQI (US)
26th June 2026
15AQI (US)
15AQI (US)
27th June 2026
16AQI (US)
16AQI (US)
28th June 2026
41AQI (US)
41AQI (US)
29th June 2026
29AQI (US)
29AQI (US)
30th June 2026
37AQI (US)
37AQI (US)
1st July 2026
39AQI (US)
39AQI (US)
2nd July 2026
36AQI (US)
36AQI (US)
3rd July 2026
37AQI (US)
37AQI (US)
4th July 2026
29AQI (US)
29AQI (US)
5th July 2026
30AQI (US)
30AQI (US)
6th July 2026
44AQI (US)
44AQI (US)
7th July 2026
48AQI (US)
48AQI (US)
8th July 2026
34AQI (US)
34AQI (US)
9th July 2026
16AQI (US)
16AQI (US)
10th July 2026
21AQI (US)
21AQI (US)
11th July 2026
19AQI (US)
19AQI (US)
12th July 2026
16AQI (US)
16AQI (US)
13th July 2026
24AQI (US)
24AQI (US)
14th July 2026
27AQI (US)
27AQI (US)
15th July 2026
24AQI (US)
24AQI (US)
16th July 2026
26AQI (US)
26AQI (US)
17th July 2026
33AQI (US)
33AQI (US)
18th July 2026
39AQI (US)
39AQI (US)
19th July 2026
32AQI (US)
32AQI (US)
20th July 2026
39AQI (US)
39AQI (US)
21st July 2026
42AQI (US)
42AQI (US)
22nd July 2026
33AQI (US)
33AQI (US)
23rd July 2026
33AQI (US)
33AQI (US)
24th July 2026
36AQI (US)
36AQI (US)
25th July 2026
34AQI (US)
34AQI (US)
26th July 2026
31AQI (US)
31AQI (US)
27th July 2026
28AQI (US)
28AQI (US)
28th July 2026
36AQI (US)
36AQI (US)
29th July 2026
40AQI (US)
40AQI (US)
30th July 2026
32AQI (US)
32AQI (US)
31st July 2026
33AQI (US)
33AQI (US)
1st August 2026
39AQI (US)
39AQI (US)
2nd August 2026
34AQI (US)
34AQI (US)
3rd August 2026
63AQI (US)
63AQI (US)
4th August 2026
69AQI (US)
69AQI (US)
5th August 2026
58AQI (US)
58AQI (US)
6th August 2026
57AQI (US)
57AQI (US)
7th August 2026
60AQI (US)
60AQI (US)
8th August 2026
56AQI (US)
56AQI (US)
9th August 2026
43AQI (US)
43AQI (US)
10th August 2026
47AQI (US)
47AQI (US)
11th August 2026
38AQI (US)
38AQI (US)
12th August 2026
34AQI (US)
34AQI (US)
13th August 2026
35AQI (US)
35AQI (US)
14th August 2026
31AQI (US)
31AQI (US)
15th August 2026
25AQI (US)
25AQI (US)
16th August 2026
24AQI (US)
24AQI (US)
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
27AQI (US)
26AQI (US)
25AQI (US)
23AQI (US)
21AQI (US)
28AQI (US)
32AQI (US)
45AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202627AQI (US)
30
1
28
31
28
30
30
31
10
6
218
7
Highest AQI (US) recorded in
August45AQI (US)
Lowest AQI (US) recorded in
May21AQI (US)
202533AQI (US)
28
3
27
1
31
29
1
31
29
1
27
4
23
8
25
5
28
3
29
1
31
338
27
Highest AQI (US) recorded in
August45AQI (US)
Lowest AQI (US) recorded in
March22AQI (US)
202430AQI (US)
25
2
29
31
30
31
29
23
8
29
2
29
1
21
10
28
2
31
336
25
Highest AQI (US) recorded in
July44AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202329AQI (US)
18
13
24
4
31
30
24
4
1
1
30
31
30
1
28
2
30
1
28
30
1
334
26
1
1
Highest AQI (US) recorded in
January44AQI (US)
Lowest AQI (US) recorded in
December19AQI (US)
202230AQI (US)
20
10
18
4
31
30
31
29
1
21
3
26
3
30
1
29
1
26
4
294
24
Highest AQI (US) recorded in
January45AQI (US)
Lowest AQI (US) recorded in
July23AQI (US)
202140AQI (US)
22
8
19
8
1
24
3
29
1
27
1
20
3
15
16
8
18
5
20
8
2
31
26
4
28
3
269
73
8
Highest AQI (US) recorded in
August71AQI (US)
Lowest AQI (US) recorded in
April29AQI (US)
202041AQI (US)
10
1
19
1
18
29
1
29
15
11
5
12
14
4
15
12
3
1
23
3
23
8
193
51
12
1
Highest AQI (US) recorded in
August61AQI (US)
Lowest AQI (US) recorded in
May23AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2020(Avg.)
41AQI (US)Least Polluted Year Recorded
2026(Avg.)
27AQI (US)Longmont's annual 2026 AQI (US) (27) shows an average percentage change of -18.6% (improved AQI (US)) compared to previous years: 2020 (41), 2021 (40), 2022 (30), 2023 (29), 2024 (30), 2025 (33).
