Altoona, Pennsylvania, 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
Altoona, Pennsylvania, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2025
77AQILowest AQI recorded on
18th Aug 2021
16AQISame Day Analysis (13th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 31 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 14th Aug - 15th Aug 2025
Altoona, Pennsylvania, United States
AQI
Day
Night
.
6 AM14th Aug 2025
8 PM
5 AM15th Aug 2025
Day time
Avg. Highest Time
6AM14th Aug
49AQI
Avg. Lowest Time
12PM14th Aug
42AQI
Night time
Avg. Highest Time
2AM15th Aug
60AQI
Avg. Lowest Time
9PM14th Aug
52AQI
In the last 24 hours,
Altoona's AQI reached its highest point of 60 at 2 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 14th Aug and 15th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Altoona, Pennsylvania, United States
JulAug
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th
Day
Night
16th Jul 2025476 AMAQI
16th Jul 2025497 AMAQI
16th Jul 2025488 AMAQI
16th Jul 2025479 AMAQI
16th Jul 20254510 AMAQI
16th Jul 20254311 AMAQI
16th Jul 20254312 PMAQI
16th Jul 2025431 PMAQI
16th Jul 2025452 PMAQI
16th Jul 2025473 PMAQI
16th Jul 2025454 PMAQI
16th Jul 2025445 PMAQI
16th Jul 2025416 PMAQI
16th Jul 2025477 PMAQI
16th Jul 2025478 PMAQI
16th Jul 2025389 PMAQI
16th Jul 20253810 PMAQI
16th Jul 20253811 PMAQI
17th Jul 20253712 AMAQI
17th Jul 2025361 AMAQI
17th Jul 2025222 AMAQI
17th Jul 2025243 AMAQI
17th Jul 2025204 AMAQI
17th Jul 2025205 AMAQI
24°C19/30°C
17th Jul 2025246 AMAQI
17th Jul 2025327 AMAQI
17th Jul 2025418 AMAQI
17th Jul 2025379 AMAQI
17th Jul 20253610 AMAQI
17th Jul 20253611 AMAQI
17th Jul 20253212 PMAQI
17th Jul 2025291 PMAQI
17th Jul 2025272 PMAQI
17th Jul 2025273 PMAQI
17th Jul 2025274 PMAQI
17th Jul 2025275 PMAQI
17th Jul 2025266 PMAQI
17th Jul 2025267 PMAQI
17th Jul 2025268 PMAQI
17th Jul 2025259 PMAQI
17th Jul 20252610 PMAQI
17th Jul 20252711 PMAQI
18th Jul 20252712 AMAQI
18th Jul 2025271 AMAQI
18th Jul 2025272 AMAQI
18th Jul 2025283 AMAQI
18th Jul 2025304 AMAQI
18th Jul 2025265 AMAQI
25°C21/31°C
18th Jul 2025256 AMAQI
18th Jul 2025267 AMAQI
18th Jul 2025258 AMAQI
18th Jul 2025259 AMAQI
18th Jul 20252410 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252312 PMAQI
18th Jul 2025241 PMAQI
18th Jul 2025242 PMAQI
18th Jul 2025243 PMAQI
18th Jul 2025254 PMAQI
18th Jul 2025265 PMAQI
18th Jul 2025286 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025309 PMAQI
18th Jul 20253210 PMAQI
18th Jul 20253211 PMAQI
19th Jul 20253312 AMAQI
19th Jul 2025361 AMAQI
19th Jul 2025402 AMAQI
19th Jul 2025413 AMAQI
19th Jul 2025424 AMAQI
19th Jul 2025405 AMAQI
22°C19/25°C
19th Jul 2025396 AMAQI
19th Jul 2025407 AMAQI
19th Jul 2025368 AMAQI
19th Jul 2025349 AMAQI
19th Jul 20253310 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20253412 PMAQI
19th Jul 2025351 PMAQI
19th Jul 2025352 PMAQI
19th Jul 2025363 PMAQI
19th Jul 2025364 PMAQI
19th Jul 2025365 PMAQI
19th Jul 2025366 PMAQI
19th Jul 2025367 PMAQI
19th Jul 2025368 PMAQI
19th Jul 2025359 PMAQI
19th Jul 20253410 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025341 AMAQI
20th Jul 2025332 AMAQI
20th Jul 2025343 AMAQI
20th Jul 2025334 AMAQI
20th Jul 2025365 AMAQI
22°C18/28°C
20th Jul 2025356 AMAQI
20th Jul 2025357 AMAQI
20th Jul 2025358 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20253610 AMAQI
20th Jul 20253711 AMAQI
20th Jul 20254012 PMAQI
20th Jul 2025411 PMAQI
20th Jul 2025392 PMAQI
20th Jul 2025373 PMAQI
20th Jul 2025374 PMAQI
20th Jul 2025385 PMAQI
20th Jul 2025376 PMAQI
20th Jul 2025367 PMAQI
20th Jul 2025358 PMAQI
20th Jul 2025399 PMAQI
20th Jul 20254010 PMAQI
20th Jul 20254111 PMAQI
21st Jul 20254312 AMAQI
21st Jul 2025431 AMAQI
21st Jul 2025512 AMAQI
21st Jul 2025503 AMAQI
21st Jul 2025474 AMAQI
21st Jul 2025475 AMAQI
24°C20/30°C
21st Jul 2025486 AMAQI
21st Jul 2025487 AMAQI
21st Jul 2025478 AMAQI
21st Jul 2025509 AMAQI
21st Jul 20255110 AMAQI
21st Jul 20256311 AMAQI
21st Jul 20255612 PMAQI
21st Jul 2025611 PMAQI
21st Jul 2025592 PMAQI
21st Jul 2025563 PMAQI
21st Jul 2025564 PMAQI
21st Jul 2025595 PMAQI
21st Jul 2025576 PMAQI
21st Jul 2025507 PMAQI
21st Jul 2025508 PMAQI
21st Jul 2025529 PMAQI
21st Jul 20255110 PMAQI
21st Jul 20255111 PMAQI
22nd Jul 20255012 AMAQI
22nd Jul 2025481 AMAQI
22nd Jul 2025472 AMAQI
22nd Jul 2025463 AMAQI
22nd Jul 2025454 AMAQI
22nd Jul 2025455 AMAQI
22°C18/26°C
22nd Jul 2025466 AMAQI
22nd Jul 2025477 AMAQI
22nd Jul 2025478 AMAQI
22nd Jul 2025469 AMAQI
22nd Jul 20254810 AMAQI
22nd Jul 20254811 AMAQI
22nd Jul 20254812 PMAQI
22nd Jul 2025461 PMAQI
22nd Jul 2025482 PMAQI
22nd Jul 2025483 PMAQI
22nd Jul 2025484 PMAQI
22nd Jul 2025475 PMAQI
22nd Jul 2025476 PMAQI
22nd Jul 2025477 PMAQI
22nd Jul 2025488 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20254610 PMAQI
22nd Jul 20254711 PMAQI
23rd Jul 20254912 AMAQI
23rd Jul 2025491 AMAQI
23rd Jul 2025422 AMAQI
23rd Jul 2025423 AMAQI
23rd Jul 2025454 AMAQI
23rd Jul 2025435 AMAQI
19°C15/25°C
23rd Jul 2025486 AMAQI
23rd Jul 2025467 AMAQI
23rd Jul 2025448 AMAQI
23rd Jul 2025429 AMAQI
23rd Jul 20254310 AMAQI
23rd Jul 20254311 AMAQI
23rd Jul 20254412 PMAQI
23rd Jul 2025451 PMAQI
23rd Jul 2025462 PMAQI
23rd Jul 2025463 PMAQI
23rd Jul 2025474 PMAQI
23rd Jul 2025465 PMAQI
23rd Jul 2025446 PMAQI
23rd Jul 2025457 PMAQI
23rd Jul 2025458 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254310 PMAQI
23rd Jul 20254311 PMAQI
24th Jul 20254412 AMAQI
24th Jul 2025431 AMAQI
24th Jul 2025422 AMAQI
24th Jul 2025413 AMAQI
24th Jul 2025414 AMAQI
24th Jul 2025405 AMAQI
22°C17/26°C
24th Jul 2025426 AMAQI
24th Jul 2025427 AMAQI
24th Jul 2025428 AMAQI
24th Jul 2025439 AMAQI
24th Jul 20254210 AMAQI
24th Jul 20254311 AMAQI
24th Jul 20254412 PMAQI
24th Jul 2025411 PMAQI
24th Jul 2025422 PMAQI
24th Jul 2025443 PMAQI
24th Jul 2025454 PMAQI
24th Jul 2025455 PMAQI
24th Jul 2025456 PMAQI
24th Jul 2025447 PMAQI
24th Jul 2025428 PMAQI
24th Jul 2025419 PMAQI
24th Jul 20254410 PMAQI
24th Jul 20254311 PMAQI
25th Jul 20254312 AMAQI
25th Jul 2025431 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025533 AMAQI
25th Jul 2025524 AMAQI
25th Jul 2025535 AMAQI
25°C18/32°C
25th Jul 2025526 AMAQI
25th Jul 2025517 AMAQI
25th Jul 2025558 AMAQI
25th Jul 2025539 AMAQI
25th Jul 20255510 AMAQI
25th Jul 20255811 AMAQI
25th Jul 20255912 PMAQI
25th Jul 2025621 PMAQI
25th Jul 2025642 PMAQI
25th Jul 2025643 PMAQI
25th Jul 2025674 PMAQI
25th Jul 2025635 PMAQI
25th Jul 2025606 PMAQI
25th Jul 2025557 PMAQI
25th Jul 2025568 PMAQI
25th Jul 2025549 PMAQI
25th Jul 20255410 PMAQI
25th Jul 20255511 PMAQI
26th Jul 20255412 AMAQI
26th Jul 2025521 AMAQI
26th Jul 2025482 AMAQI
26th Jul 2025453 AMAQI
26th Jul 2025454 AMAQI
26th Jul 2025455 AMAQI
26°C22/34°C
26th Jul 2025446 AMAQI
26th Jul 2025457 AMAQI
26th Jul 2025468 AMAQI
26th Jul 2025479 AMAQI
26th Jul 20254710 AMAQI
26th Jul 20254711 AMAQI
26th Jul 20254612 PMAQI
26th Jul 2025461 PMAQI
26th Jul 2025452 PMAQI
26th Jul 2025463 PMAQI
26th Jul 2025494 PMAQI
26th Jul 2025485 PMAQI
26th Jul 2025476 PMAQI
26th Jul 2025477 PMAQI
26th Jul 2025468 PMAQI
26th Jul 2025469 PMAQI
26th Jul 20254610 PMAQI
26th Jul 20254611 PMAQI
27th Jul 20254512 AMAQI
27th Jul 2025451 AMAQI
27th Jul 2025382 AMAQI
27th Jul 2025363 AMAQI
27th Jul 2025374 AMAQI
27th Jul 2025395 AMAQI
25°C20/30°C
27th Jul 2025366 AMAQI
27th Jul 2025377 AMAQI
27th Jul 2025368 AMAQI
27th Jul 2025369 AMAQI
27th Jul 20253610 AMAQI
27th Jul 20253611 AMAQI
27th Jul 20253412 PMAQI
27th Jul 2025341 PMAQI
27th Jul 2025352 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025354 PMAQI
27th Jul 2025365 PMAQI
27th Jul 2025366 PMAQI
27th Jul 2025367 PMAQI
27th Jul 2025368 PMAQI
27th Jul 2025369 PMAQI
27th Jul 20253610 PMAQI
27th Jul 20253611 PMAQI
28th Jul 20253612 AMAQI
28th Jul 2025371 AMAQI
28th Jul 2025342 AMAQI
28th Jul 2025333 AMAQI
28th Jul 2025324 AMAQI
28th Jul 2025335 AMAQI
24°C18/29°C
28th Jul 2025336 AMAQI
28th Jul 2025347 AMAQI
28th Jul 2025338 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20253510 AMAQI
28th Jul 20253511 AMAQI
28th Jul 20253612 PMAQI
28th Jul 2025351 PMAQI
28th Jul 2025372 PMAQI
28th Jul 2025373 PMAQI
28th Jul 2025384 PMAQI
28th Jul 2025375 PMAQI
28th Jul 2025376 PMAQI
28th Jul 2025357 PMAQI
28th Jul 2025358 PMAQI
28th Jul 2025359 PMAQI
28th Jul 20253610 PMAQI
28th Jul 20253711 PMAQI
29th Jul 20253712 AMAQI
29th Jul 2025381 AMAQI
29th Jul 2025402 AMAQI
29th Jul 2025403 AMAQI
29th Jul 2025414 AMAQI
29th Jul 2025395 AMAQI
25°C18/32°C
29th Jul 2025406 AMAQI
29th Jul 2025427 AMAQI
29th Jul 2025448 AMAQI
29th Jul 2025479 AMAQI
29th Jul 20254510 AMAQI
29th Jul 20254411 AMAQI
29th Jul 20254512 PMAQI
29th Jul 2025461 PMAQI
29th Jul 2025432 PMAQI
29th Jul 2025463 PMAQI
29th Jul 2025454 PMAQI
29th Jul 2025455 PMAQI
29th Jul 2025446 PMAQI
29th Jul 2025417 PMAQI
29th Jul 2025418 PMAQI
29th Jul 2025419 PMAQI
29th Jul 20254210 PMAQI
29th Jul 20254311 PMAQI
30th Jul 20254412 AMAQI
30th Jul 2025461 AMAQI
30th Jul 2025502 AMAQI
30th Jul 2025503 AMAQI
30th Jul 2025504 AMAQI
30th Jul 2025505 AMAQI
26°C20/33°C
30th Jul 2025516 AMAQI
30th Jul 2025547 AMAQI
30th Jul 2025588 AMAQI
30th Jul 2025669 AMAQI
30th Jul 20257410 AMAQI
30th Jul 20257711 AMAQI
30th Jul 20257712 PMAQI
30th Jul 2025751 PMAQI
30th Jul 2025722 PMAQI
30th Jul 2025743 PMAQI
30th Jul 2025744 PMAQI
30th Jul 2025745 PMAQI
30th Jul 2025746 PMAQI
30th Jul 2025747 PMAQI
30th Jul 2025748 PMAQI
30th Jul 2025679 PMAQI
30th Jul 20256710 PMAQI
30th Jul 20256511 PMAQI
31st Jul 20256512 AMAQI
31st Jul 2025641 AMAQI
31st Jul 2025802 AMAQI
31st Jul 2025793 AMAQI
31st Jul 2025794 AMAQI
31st Jul 2025815 AMAQI
26°C18/34°C
31st Jul 2025836 AMAQI
31st Jul 2025907 AMAQI
31st Jul 2025898 AMAQI
31st Jul 2025899 AMAQI
31st Jul 20259310 AMAQI
31st Jul 20259611 AMAQI
31st Jul 20259712 PMAQI
31st Jul 2025971 PMAQI
31st Jul 2025982 PMAQI
31st Jul 2025983 PMAQI
31st Jul 2025964 PMAQI
31st Jul 2025945 PMAQI
31st Jul 2025946 PMAQI
31st Jul 2025887 PMAQI
31st Jul 2025908 PMAQI
31st Jul 2025909 PMAQI
31st Jul 20258910 PMAQI
31st Jul 20259211 PMAQI
1st Aug 20259412 AMAQI
1st Aug 2025921 AMAQI
1st Aug 2025932 AMAQI
1st Aug 2025943 AMAQI
1st Aug 2025934 AMAQI
1st Aug 2025935 AMAQI
21°C16/24°C
1st Aug 2025946 AMAQI
1st Aug 2025947 AMAQI
1st Aug 2025938 AMAQI
1st Aug 2025919 AMAQI
1st Aug 20259210 AMAQI
1st Aug 20259011 AMAQI
1st Aug 20258912 PMAQI
1st Aug 2025891 PMAQI
1st Aug 2025902 PMAQI
1st Aug 2025893 PMAQI
1st Aug 2025904 PMAQI
1st Aug 2025905 PMAQI
1st Aug 2025896 PMAQI
1st Aug 2025927 PMAQI
1st Aug 2025858 PMAQI
1st Aug 2025809 PMAQI
1st Aug 20257610 PMAQI
1st Aug 20257811 PMAQI
2nd Aug 20257412 AMAQI
2nd Aug 2025731 AMAQI
2nd Aug 2025732 AMAQI
2nd Aug 2025723 AMAQI
2nd Aug 2025714 AMAQI
2nd Aug 2025705 AMAQI
19°C13/26°C
2nd Aug 2025706 AMAQI
2nd Aug 2025687 AMAQI
2nd Aug 2025688 AMAQI
2nd Aug 2025649 AMAQI
2nd Aug 20256110 AMAQI
2nd Aug 20256011 AMAQI
2nd Aug 20256012 PMAQI
2nd Aug 2025561 PMAQI
2nd Aug 2025572 PMAQI
2nd Aug 2025583 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025575 PMAQI
2nd Aug 2025576 PMAQI
2nd Aug 2025657 PMAQI
2nd Aug 2025658 PMAQI
2nd Aug 2025639 PMAQI
2nd Aug 20256410 PMAQI
2nd Aug 20256511 PMAQI
3rd Aug 20256412 AMAQI
3rd Aug 2025681 AMAQI
3rd Aug 2025672 AMAQI
3rd Aug 2025663 AMAQI
3rd Aug 2025674 AMAQI
3rd Aug 2025685 AMAQI
18°C11/25°C
3rd Aug 2025666 AMAQI
3rd Aug 2025677 AMAQI
3rd Aug 2025688 AMAQI
3rd Aug 2025649 AMAQI
3rd Aug 20256810 AMAQI
3rd Aug 20256711 AMAQI
3rd Aug 20256612 PMAQI
3rd Aug 2025671 PMAQI
3rd Aug 2025652 PMAQI
3rd Aug 2025673 PMAQI
3rd Aug 2025694 PMAQI
3rd Aug 2025725 PMAQI
3rd Aug 2025726 PMAQI
3rd Aug 2025647 PMAQI
3rd Aug 2025698 PMAQI
3rd Aug 2025689 PMAQI
3rd Aug 20256910 PMAQI
3rd Aug 20256711 PMAQI
4th Aug 20256612 AMAQI
4th Aug 2025671 AMAQI
4th Aug 2025642 AMAQI
4th Aug 2025673 AMAQI
4th Aug 2025694 AMAQI
4th Aug 2025685 AMAQI
19°C9/27°C
4th Aug 2025686 AMAQI
4th Aug 2025677 AMAQI
4th Aug 2025688 AMAQI
4th Aug 2025699 AMAQI
4th Aug 20256710 AMAQI
4th Aug 20257111 AMAQI
4th Aug 20257212 PMAQI
4th Aug 2025741 PMAQI
4th Aug 2025752 PMAQI
4th Aug 2025773 PMAQI
4th Aug 2025794 PMAQI
4th Aug 2025795 PMAQI
4th Aug 2025796 PMAQI
4th Aug 2025667 PMAQI
4th Aug 2025728 PMAQI
4th Aug 2025769 PMAQI
4th Aug 20257310 PMAQI
4th Aug 20257611 PMAQI
5th Aug 20257412 AMAQI
5th Aug 2025711 AMAQI
5th Aug 2025742 AMAQI
5th Aug 2025743 AMAQI
5th Aug 2025724 AMAQI
5th Aug 2025725 AMAQI
20°C11/29°C
5th Aug 2025746 AMAQI
5th Aug 2025747 AMAQI
5th Aug 2025748 AMAQI
5th Aug 2025719 AMAQI
5th Aug 20257010 AMAQI
5th Aug 20257011 AMAQI
5th Aug 20256912 PMAQI
5th Aug 2025681 PMAQI
5th Aug 2025712 PMAQI
5th Aug 2025723 PMAQI
5th Aug 2025734 PMAQI
5th Aug 2025735 PMAQI
5th Aug 2025746 PMAQI
5th Aug 2025687 PMAQI
5th Aug 2025698 PMAQI
5th Aug 2025739 PMAQI
5th Aug 20257110 PMAQI
5th Aug 20257211 PMAQI
6th Aug 20257312 AMAQI
6th Aug 2025701 AMAQI
6th Aug 2025692 AMAQI
6th Aug 2025703 AMAQI
6th Aug 2025744 AMAQI
6th Aug 2025755 AMAQI
21°C13/29°C
6th Aug 2025776 AMAQI
6th Aug 2025827 AMAQI
6th Aug 2025828 AMAQI
6th Aug 2025839 AMAQI
6th Aug 20258710 AMAQI
6th Aug 20258411 AMAQI
6th Aug 20258512 PMAQI
6th Aug 2025811 PMAQI
6th Aug 2025822 PMAQI
6th Aug 2025793 PMAQI
6th Aug 2025784 PMAQI
6th Aug 2025765 PMAQI
6th Aug 2025746 PMAQI
6th Aug 2025757 PMAQI
6th Aug 2025718 PMAQI
6th Aug 2025689 PMAQI
6th Aug 20256710 PMAQI
6th Aug 20256411 PMAQI
7th Aug 20256412 AMAQI
7th Aug 2025641 AMAQI
7th Aug 2025592 AMAQI
7th Aug 2025593 AMAQI
7th Aug 2025584 AMAQI
7th Aug 2025585 AMAQI
20°C16/25°C
7th Aug 2025596 AMAQI
7th Aug 2025617 AMAQI
7th Aug 2025628 AMAQI
7th Aug 2025649 AMAQI
7th Aug 20256410 AMAQI
7th Aug 20256411 AMAQI
7th Aug 20256412 PMAQI
7th Aug 2025651 PMAQI
7th Aug 2025652 PMAQI
7th Aug 2025663 PMAQI
7th Aug 2025664 PMAQI
7th Aug 2025675 PMAQI
7th Aug 2025686 PMAQI
7th Aug 2025667 PMAQI
7th Aug 2025648 PMAQI
7th Aug 2025679 PMAQI
7th Aug 20256610 PMAQI
7th Aug 20256611 PMAQI
8th Aug 20256612 AMAQI
8th Aug 2025671 AMAQI
8th Aug 2025662 AMAQI
8th Aug 2025633 AMAQI
8th Aug 2025624 AMAQI
8th Aug 2025625 AMAQI
21°C15/28°C
8th Aug 2025636 AMAQI
8th Aug 2025647 AMAQI
8th Aug 2025658 AMAQI
8th Aug 2025659 AMAQI
8th Aug 20256310 AMAQI
8th Aug 20256411 AMAQI
8th Aug 20256312 PMAQI
8th Aug 2025651 PMAQI
8th Aug 2025642 PMAQI
8th Aug 2025643 PMAQI
8th Aug 2025664 PMAQI
8th Aug 2025665 PMAQI
8th Aug 2025646 PMAQI
8th Aug 2025677 PMAQI
8th Aug 2025658 PMAQI
8th Aug 2025649 PMAQI
8th Aug 20256410 PMAQI
8th Aug 20256311 PMAQI
9th Aug 20256212 AMAQI
9th Aug 2025601 AMAQI
9th Aug 2025552 AMAQI
9th Aug 2025543 AMAQI
9th Aug 2025544 AMAQI
9th Aug 2025545 AMAQI
20°C12/28°C
9th Aug 2025536 AMAQI
9th Aug 2025547 AMAQI
9th Aug 2025518 AMAQI
9th Aug 2025499 AMAQI
9th Aug 20254810 AMAQI
9th Aug 20254811 AMAQI
9th Aug 20254712 PMAQI
9th Aug 2025481 PMAQI
9th Aug 2025502 PMAQI
9th Aug 2025533 PMAQI
9th Aug 2025534 PMAQI
9th Aug 2025545 PMAQI
9th Aug 2025526 PMAQI
9th Aug 2025547 PMAQI
9th Aug 2025548 PMAQI
9th Aug 2025539 PMAQI
9th Aug 20255210 PMAQI
9th Aug 20255211 PMAQI
10th Aug 20255112 AMAQI
10th Aug 2025501 AMAQI
10th Aug 2025432 AMAQI
10th Aug 2025423 AMAQI
10th Aug 2025404 AMAQI
10th Aug 2025385 AMAQI
20°C11/29°C
10th Aug 2025386 AMAQI
10th Aug 2025397 AMAQI
10th Aug 2025388 AMAQI
10th Aug 2025389 AMAQI
10th Aug 20253910 AMAQI
10th Aug 20254111 AMAQI
10th Aug 20254312 PMAQI
10th Aug 2025431 PMAQI
10th Aug 2025442 PMAQI
10th Aug 2025443 PMAQI
10th Aug 2025444 PMAQI
10th Aug 2025455 PMAQI
10th Aug 2025436 PMAQI
10th Aug 2025447 PMAQI
10th Aug 2025448 PMAQI
10th Aug 2025449 PMAQI
10th Aug 20254510 PMAQI
10th Aug 20254511 PMAQI
11th Aug 20254412 AMAQI
11th Aug 2025431 AMAQI
11th Aug 2025422 AMAQI
11th Aug 2025403 AMAQI
11th Aug 2025444 AMAQI
11th Aug 2025435 AMAQI
21°C12/30°C
11th Aug 2025446 AMAQI
11th Aug 2025467 AMAQI
11th Aug 2025488 AMAQI
11th Aug 2025479 AMAQI
11th Aug 20254810 AMAQI
11th Aug 20254811 AMAQI
11th Aug 20254912 PMAQI
11th Aug 2025491 PMAQI
11th Aug 2025512 PMAQI
11th Aug 2025513 PMAQI
11th Aug 2025534 PMAQI
11th Aug 2025525 PMAQI
11th Aug 2025506 PMAQI
11th Aug 2025497 PMAQI
11th Aug 2025548 PMAQI
11th Aug 2025549 PMAQI
11th Aug 20255110 PMAQI
11th Aug 20255311 PMAQI
12th Aug 20255212 AMAQI
12th Aug 2025531 AMAQI
12th Aug 2025522 AMAQI
12th Aug 2025523 AMAQI
12th Aug 2025534 AMAQI
12th Aug 2025505 AMAQI
22°C14/28°C
12th Aug 2025516 AMAQI
12th Aug 2025537 AMAQI
12th Aug 2025528 AMAQI
12th Aug 2025529 AMAQI
12th Aug 20255110 AMAQI
12th Aug 20254911 AMAQI
12th Aug 20255012 PMAQI
12th Aug 2025471 PMAQI
12th Aug 2025462 PMAQI
12th Aug 2025443 PMAQI
12th Aug 2025424 PMAQI
12th Aug 2025395 PMAQI
12th Aug 2025386 PMAQI
12th Aug 2025507 PMAQI
12th Aug 2025478 PMAQI
12th Aug 2025429 PMAQI
12th Aug 20254210 PMAQI
12th Aug 20254211 PMAQI
13th Aug 20254012 AMAQI
13th Aug 2025401 AMAQI
13th Aug 2025402 AMAQI
13th Aug 2025403 AMAQI
13th Aug 2025384 AMAQI
13th Aug 2025385 AMAQI
23°C15/30°C
13th Aug 2025376 AMAQI
13th Aug 2025387 AMAQI
13th Aug 2025388 AMAQI
13th Aug 2025389 AMAQI
13th Aug 20253810 AMAQI
13th Aug 20254011 AMAQI
13th Aug 20254312 PMAQI
13th Aug 2025471 PMAQI
13th Aug 2025492 PMAQI
13th Aug 2025483 PMAQI
13th Aug 2025474 PMAQI
13th Aug 2025445 PMAQI
13th Aug 2025456 PMAQI
13th Aug 2025407 PMAQI
13th Aug 2025418 PMAQI
13th Aug 2025419 PMAQI
13th Aug 20254310 PMAQI
13th Aug 20254611 PMAQI
14th Aug 20254612 AMAQI
14th Aug 2025471 AMAQI
14th Aug 2025472 AMAQI
14th Aug 2025473 AMAQI
14th Aug 2025464 AMAQI
14th Aug 2025465 AMAQI
24°C17/31°C
14th Aug 2025496 AMAQI
14th Aug 2025487 AMAQI
14th Aug 2025478 AMAQI
14th Aug 2025439 AMAQI
14th Aug 20254310 AMAQI
14th Aug 20254311 AMAQI
14th Aug 20254212 PMAQI
14th Aug 2025431 PMAQI
14th Aug 2025432 PMAQI
14th Aug 2025443 PMAQI
14th Aug 2025464 PMAQI
14th Aug 2025485 PMAQI
14th Aug 2025496 PMAQI
14th Aug 2025467 PMAQI
14th Aug 2025488 PMAQI
14th Aug 2025529 PMAQI
14th Aug 20255410 PMAQI
14th Aug 20255411 PMAQI
15th Aug 20255512 AMAQI
15th Aug 2025551 AMAQI
15th Aug 2025602 AMAQI
23°C17/30°C
6 AM
1 PM
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 PM
53AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM
53AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 PM (Avg. 53), while the lowest AQI was between 6 AM to 8 PM (Avg. 53).
Night time
Avg. Highest Time
12 AM - 11 PM
52AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
52AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 52), while the lowest AQI was between 12 AM to 11 PM (Avg. 52).
2025 Days Vs Air Quality
Altoona, Pennsylvania, United States
2025
85%
191
15%
34
Total number of days with different AQI categories in last 227 days in 2025 (138 days remaining)
Good
191 DaysModerate
34 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 227 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Altoona, Pennsylvania, United States
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
21AQI
21AQI
2nd January 2025
21AQI
21AQI
3rd January 2025
26AQI
26AQI
4th January 2025
23AQI
23AQI
5th January 2025
27AQI
27AQI
6th January 2025
27AQI
27AQI
7th January 2025
24AQI
24AQI
8th January 2025
27AQI
27AQI
9th January 2025
30AQI
30AQI
10th January 2025
31AQI
31AQI
11th January 2025
42AQI
42AQI
12th January 2025
51AQI
51AQI
13th January 2025
36AQI
36AQI
14th January 2025
26AQI
26AQI
15th January 2025
28AQI
28AQI
16th January 2025
34AQI
34AQI
17th January 2025
44AQI
44AQI
18th January 2025
58AQI
58AQI
19th January 2025
27AQI
27AQI
20th January 2025
23AQI
23AQI
21st January 2025
31AQI
31AQI
22nd January 2025
42AQI
42AQI
23rd January 2025
50AQI
50AQI
24th January 2025
36AQI
36AQI
25th January 2025
40AQI
40AQI
26th January 2025
29AQI
29AQI
27th January 2025
29AQI
29AQI
28th January 2025
28AQI
28AQI
29th January 2025
27AQI
27AQI
30th January 2025
31AQI
31AQI
31st January 2025
40AQI
40AQI
1st February 2025
26AQI
26AQI
2nd February 2025
25AQI
25AQI
3rd February 2025
42AQI
42AQI
4th February 2025
30AQI
30AQI
5th February 2025
25AQI
25AQI
6th February 2025
24AQI
24AQI
7th February 2025
25AQI
25AQI
8th February 2025
30AQI
30AQI
9th February 2025
26AQI
26AQI
10th February 2025
29AQI
29AQI
11th February 2025
49AQI
49AQI
12th February 2025
48AQI
48AQI
13th February 2025
25AQI
25AQI
14th February 2025
30AQI
30AQI
15th February 2025
32AQI
32AQI
16th February 2025
21AQI
21AQI
17th February 2025
29AQI
29AQI
18th February 2025
26AQI
26AQI
19th February 2025
24AQI
24AQI
20th February 2025
25AQI
25AQI
21st February 2025
27AQI
27AQI
22nd February 2025
36AQI
36AQI
23rd February 2025
35AQI
35AQI
24th February 2025
40AQI
40AQI
25th February 2025
29AQI
29AQI
26th February 2025
41AQI
41AQI
27th February 2025
38AQI
38AQI
28th February 2025
27AQI
27AQI
1st March 2025
27AQI
27AQI
2nd March 2025
27AQI
27AQI
3rd March 2025
30AQI
30AQI
4th March 2025
39AQI
39AQI
5th March 2025
27AQI
27AQI
6th March 2025
23AQI
23AQI
7th March 2025
30AQI
30AQI
8th March 2025
29AQI
29AQI
9th March 2025
29AQI
29AQI
10th March 2025
29AQI
29AQI
11th March 2025
35AQI
35AQI
12th March 2025
28AQI
28AQI
13th March 2025
42AQI
42AQI
14th March 2025
62AQI
62AQI
15th March 2025
57AQI
57AQI
16th March 2025
31AQI
31AQI
17th March 2025
18AQI
18AQI
18th March 2025
22AQI
22AQI
19th March 2025
28AQI
28AQI
20th March 2025
29AQI
29AQI
21st March 2025
16AQI
16AQI
22nd March 2025
20AQI
20AQI
23rd March 2025
21AQI
21AQI
24th March 2025
20AQI
20AQI
25th March 2025
26AQI
26AQI
26th March 2025
20AQI
20AQI
27th March 2025
22AQI
22AQI
28th March 2025
37AQI
37AQI
29th March 2025
55AQI
55AQI
30th March 2025
50AQI
50AQI
31st March 2025
21AQI
21AQI
1st April 2025
17AQI
17AQI
2nd April 2025
26AQI
26AQI
3rd April 2025
23AQI
23AQI
4th April 2025
22AQI
22AQI
5th April 2025
31AQI
31AQI
6th April 2025
21AQI
21AQI
7th April 2025
21AQI
21AQI
8th April 2025
13AQI
13AQI
9th April 2025
20AQI
20AQI
10th April 2025
25AQI
25AQI
11th April 2025
35AQI
35AQI
12th April 2025
19AQI
19AQI
13th April 2025
21AQI
21AQI
14th April 2025
32AQI
32AQI
15th April 2025
23AQI
23AQI
16th April 2025
14AQI
14AQI
17th April 2025
22AQI
22AQI
18th April 2025
34AQI
34AQI
19th April 2025
55AQI
55AQI
20th April 2025
21AQI
21AQI
21st April 2025
31AQI
31AQI
22nd April 2025
21AQI
21AQI
23rd April 2025
25AQI
25AQI
24th April 2025
33AQI
33AQI
25th April 2025
51AQI
51AQI
26th April 2025
21AQI
21AQI
27th April 2025
13AQI
13AQI
28th April 2025
18AQI
18AQI
29th April 2025
31AQI
31AQI
30th April 2025
20AQI
20AQI
1st May 2025
25AQI
25AQI
2nd May 2025
25AQI
25AQI
3rd May 2025
23AQI
23AQI
4th May 2025
20AQI
20AQI
5th May 2025
26AQI
26AQI
6th May 2025
18AQI
18AQI
7th May 2025
18AQI
18AQI
8th May 2025
26AQI
26AQI
9th May 2025
18AQI
18AQI
10th May 2025
21AQI
21AQI
11th May 2025
34AQI
34AQI
12th May 2025
28AQI
28AQI
13th May 2025
19AQI
19AQI
14th May 2025
17AQI
17AQI
15th May 2025
24AQI
24AQI
16th May 2025
39AQI
39AQI
17th May 2025
29AQI
29AQI
18th May 2025
16AQI
16AQI
19th May 2025
19AQI
19AQI
20th May 2025
24AQI
24AQI
21st May 2025
20AQI
20AQI
22nd May 2025
11AQI
11AQI
23rd May 2025
15AQI
15AQI
24th May 2025
15AQI
15AQI
25th May 2025
20AQI
20AQI
26th May 2025
25AQI
25AQI
27th May 2025
26AQI
26AQI
28th May 2025
13AQI
13AQI
29th May 2025
24AQI
24AQI
30th May 2025
32AQI
32AQI
31st May 2025
34AQI
34AQI
1st June 2025
22AQI
22AQI
2nd June 2025
25AQI
25AQI
3rd June 2025
39AQI
39AQI
4th June 2025
58AQI
58AQI
5th June 2025
67AQI
67AQI
6th June 2025
54AQI
54AQI
7th June 2025
51AQI
51AQI
8th June 2025
62AQI
62AQI
9th June 2025
50AQI
50AQI
10th June 2025
50AQI
50AQI
11th June 2025
60AQI
60AQI
12th June 2025
68AQI
68AQI
13th June 2025
70AQI
70AQI
14th June 2025
68AQI
68AQI
15th June 2025
45AQI
45AQI
16th June 2025
24AQI
24AQI
17th June 2025
21AQI
21AQI
18th June 2025
24AQI
24AQI
19th June 2025
29AQI
29AQI
20th June 2025
34AQI
34AQI
21st June 2025
43AQI
43AQI
22nd June 2025
47AQI
47AQI
23rd June 2025
56AQI
56AQI
24th June 2025
57AQI
57AQI
25th June 2025
58AQI
58AQI
26th June 2025
45AQI
45AQI
27th June 2025
33AQI
33AQI
28th June 2025
29AQI
29AQI
29th June 2025
41AQI
41AQI
30th June 2025
48AQI
48AQI
1st July 2025
35AQI
35AQI
2nd July 2025
42AQI
42AQI
3rd July 2025
49AQI
49AQI
4th July 2025
58AQI
58AQI
5th July 2025
59AQI
59AQI
6th July 2025
62AQI
62AQI
7th July 2025
55AQI
55AQI
8th July 2025
40AQI
40AQI
9th July 2025
46AQI
46AQI
10th July 2025
54AQI
54AQI
11th July 2025
55AQI
55AQI
12th July 2025
53AQI
53AQI
13th July 2025
41AQI
41AQI
14th July 2025
38AQI
38AQI
15th July 2025
50AQI
50AQI
16th July 2025
49AQI
49AQI
17th July 2025
32AQI
32AQI
18th July 2025
30AQI
30AQI
19th July 2025
42AQI
42AQI
20th July 2025
40AQI
40AQI
21st July 2025
43AQI
43AQI
22nd July 2025
42AQI
42AQI
23rd July 2025
45AQI
45AQI
24th July 2025
49AQI
49AQI
25th July 2025
46AQI
46AQI
26th July 2025
41AQI
41AQI
27th July 2025
39AQI
39AQI
28th July 2025
39AQI
39AQI
29th July 2025
43AQI
43AQI
30th July 2025
44AQI
44AQI
31st July 2025
51AQI
51AQI
1st August 2025
54AQI
54AQI
2nd August 2025
29AQI
29AQI
3rd August 2025
48AQI
48AQI
4th August 2025
61AQI
61AQI
5th August 2025
70AQI
70AQI
6th August 2025
77AQI
77AQI
7th August 2025
68AQI
68AQI
8th August 2025
72AQI
72AQI
9th August 2025
57AQI
57AQI
10th August 2025
49AQI
49AQI
11th August 2025
45AQI
45AQI
12th August 2025
40AQI
40AQI
13th August 2025
31AQI
31AQI
33AQI
31AQI
31AQI
25AQI
23AQI
46AQI
46AQI
54AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202535AQI
29
2
28
28
3
28
2
31
18
12
23
8
6
7
191
34
Highest AQI recorded in
August54AQI
Lowest AQI recorded in
May23AQI
202430AQI
28
3
26
3
31
30
31
27
3
29
2
26
5
30
31
30
28
3
347
19
Highest AQI recorded in
July37AQI
Lowest AQI recorded in
May25AQI
202339AQI
28
3
24
4
30
1
24
6
22
9
12
12
3
3
23
7
1
26
5
30
31
26
3
26
5
302
55
4
3
Highest AQI recorded in
June70AQI
Lowest AQI recorded in
October25AQI
202236AQI
23
6
16
6
26
4
28
2
28
2
25
2
21
3
2
28
1
29
2
27
3
21
10
274
41
Highest AQI recorded in
December42AQI
Lowest AQI recorded in
September28AQI
202138AQI
22
5
17
5
13
3
23
1
28
3
24
5
17
11
2
22
9
28
2
31
24
6
23
8
272
58
2
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
October30AQI
202035AQI
13
21
18
28
28
3
29
2
29
1
30
22
6
24
7
242
19
Highest AQI recorded in
November41AQI
Lowest AQI recorded in
October31AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
39AQILeast Polluted Year Recorded
2024(Avg.)
30AQIAltoona's annual 2025 AQI (35) shows an average percentage change of -2.2% (improved AQI) compared to previous years: 2020 (35), 2021 (38), 2022 (36), 2023 (39), 2024 (30).
