2nd Avenue, 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
2nd Avenue, Altoona, Pennsylvania, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2025
77AQILowest AQI recorded on
2nd Aug 2025
29AQISame Day Analysis (13th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 32 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 13th Aug - 14th Aug 2025
2nd Avenue, Altoona, Pennsylvania, United States
AQI
Day
Night
.
6 AM13th Aug 2025
8 PM
5 AM14th Aug 2025
Day time
Avg. Highest Time
2PM13th Aug
37AQI
Avg. Lowest Time
6PM13th Aug
28AQI
Night time
Avg. Highest Time
2AM14th Aug
38AQI
Avg. Lowest Time
9PM13th Aug
28AQI
In the last 24 hours,
2nd Avenue's AQI reached its highest point of 38 at 2 AM during the Night, while the lowest point, 28, was recorded at 9 PM during the Night between 13th Aug and 14th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
2nd Avenue, Altoona, Pennsylvania, United States
JulAug
15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
15th Jul 2025426 AMAQI
15th Jul 2025447 AMAQI
15th Jul 2025468 AMAQI
15th Jul 2025519 AMAQI
15th Jul 20255310 AMAQI
15th Jul 20255411 AMAQI
15th Jul 20255612 PMAQI
15th Jul 2025541 PMAQI
15th Jul 2025542 PMAQI
15th Jul 2025533 PMAQI
15th Jul 2025524 PMAQI
15th Jul 2025525 PMAQI
15th Jul 2025526 PMAQI
15th Jul 2025527 PMAQI
15th Jul 2025488 PMAQI
15th Jul 2025499 PMAQI
15th Jul 20255010 PMAQI
15th Jul 20255011 PMAQI
16th Jul 20255212 AMAQI
16th Jul 2025521 AMAQI
16th Jul 2025532 AMAQI
16th Jul 2025563 AMAQI
16th Jul 2025554 AMAQI
16th Jul 2025565 AMAQI
24°C17/32°C
16th Jul 2025526 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025509 AMAQI
16th Jul 20254910 AMAQI
16th Jul 20254811 AMAQI
16th Jul 20254812 PMAQI
16th Jul 2025501 PMAQI
16th Jul 2025522 PMAQI
16th Jul 2025523 PMAQI
16th Jul 2025504 PMAQI
16th Jul 2025485 PMAQI
16th Jul 2025446 PMAQI
16th Jul 2025507 PMAQI
16th Jul 2025498 PMAQI
16th Jul 2025399 PMAQI
16th Jul 20254010 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20253912 AMAQI
17th Jul 2025381 AMAQI
17th Jul 2025252 AMAQI
17th Jul 2025283 AMAQI
17th Jul 2025234 AMAQI
17th Jul 2025235 AMAQI
24°C19/30°C
17th Jul 2025296 AMAQI
17th Jul 2025407 AMAQI
17th Jul 2025528 AMAQI
17th Jul 2025469 AMAQI
17th Jul 20254410 AMAQI
17th Jul 20254411 AMAQI
17th Jul 20253912 PMAQI
17th Jul 2025341 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025313 PMAQI
17th Jul 2025324 PMAQI
17th Jul 2025315 PMAQI
17th Jul 2025306 PMAQI
17th Jul 2025297 PMAQI
17th Jul 2025298 PMAQI
17th Jul 2025289 PMAQI
17th Jul 20252910 PMAQI
17th Jul 20253011 PMAQI
18th Jul 20253012 AMAQI
18th Jul 2025311 AMAQI
18th Jul 2025302 AMAQI
18th Jul 2025283 AMAQI
18th Jul 2025304 AMAQI
18th Jul 2025305 AMAQI
25°C21/31°C
18th Jul 2025286 AMAQI
18th Jul 2025297 AMAQI
18th Jul 2025288 AMAQI
18th Jul 2025289 AMAQI
18th Jul 20252610 AMAQI
18th Jul 20252611 AMAQI
18th Jul 20252512 PMAQI
18th Jul 2025261 PMAQI
18th Jul 2025272 PMAQI
18th Jul 2025263 PMAQI
18th Jul 2025264 PMAQI
18th Jul 2025295 PMAQI
18th Jul 2025316 PMAQI
18th Jul 2025297 PMAQI
18th Jul 2025328 PMAQI
18th Jul 2025359 PMAQI
18th Jul 20253610 PMAQI
18th Jul 20253811 PMAQI
19th Jul 20253812 AMAQI
19th Jul 2025421 AMAQI
19th Jul 2025482 AMAQI
19th Jul 2025493 AMAQI
19th Jul 2025514 AMAQI
19th Jul 2025475 AMAQI
22°C19/25°C
19th Jul 2025466 AMAQI
19th Jul 2025467 AMAQI
19th Jul 2025408 AMAQI
19th Jul 2025389 AMAQI
19th Jul 20253610 AMAQI
19th Jul 20253811 AMAQI
19th Jul 20253812 PMAQI
19th Jul 2025401 PMAQI
19th Jul 2025402 PMAQI
19th Jul 2025423 PMAQI
19th Jul 2025424 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025406 PMAQI
19th Jul 2025427 PMAQI
19th Jul 2025408 PMAQI
19th Jul 2025399 PMAQI
19th Jul 20253910 PMAQI
19th Jul 20253811 PMAQI
20th Jul 20253912 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025382 AMAQI
20th Jul 2025403 AMAQI
20th Jul 2025394 AMAQI
20th Jul 2025425 AMAQI
22°C18/28°C
20th Jul 2025416 AMAQI
20th Jul 2025417 AMAQI
20th Jul 2025418 AMAQI
20th Jul 2025419 AMAQI
20th Jul 20254210 AMAQI
20th Jul 20254311 AMAQI
20th Jul 20254312 PMAQI
20th Jul 2025421 PMAQI
20th Jul 2025402 PMAQI
20th Jul 2025383 PMAQI
20th Jul 2025384 PMAQI
20th Jul 2025395 PMAQI
20th Jul 2025376 PMAQI
20th Jul 2025407 PMAQI
20th Jul 2025388 PMAQI
20th Jul 2025379 PMAQI
20th Jul 20253810 PMAQI
20th Jul 20253811 PMAQI
21st Jul 20253912 AMAQI
21st Jul 2025381 AMAQI
21st Jul 2025382 AMAQI
21st Jul 2025373 AMAQI
21st Jul 2025354 AMAQI
21st Jul 2025365 AMAQI
24°C20/30°C
21st Jul 2025376 AMAQI
21st Jul 2025377 AMAQI
21st Jul 2025398 AMAQI
21st Jul 2025439 AMAQI
21st Jul 20254810 AMAQI
21st Jul 20255011 AMAQI
21st Jul 20254612 PMAQI
21st Jul 2025511 PMAQI
21st Jul 2025512 PMAQI
21st Jul 2025513 PMAQI
21st Jul 2025504 PMAQI
21st Jul 2025535 PMAQI
21st Jul 2025536 PMAQI
21st Jul 2025427 PMAQI
21st Jul 2025408 PMAQI
21st Jul 2025469 PMAQI
21st Jul 20254510 PMAQI
21st Jul 20254411 PMAQI
22nd Jul 20254312 AMAQI
22nd Jul 2025401 AMAQI
22nd Jul 2025422 AMAQI
22nd Jul 2025423 AMAQI
22nd Jul 2025404 AMAQI
22nd Jul 2025415 AMAQI
22°C18/26°C
22nd Jul 2025426 AMAQI
22nd Jul 2025427 AMAQI
22nd Jul 2025418 AMAQI
22nd Jul 2025419 AMAQI
22nd Jul 20254210 AMAQI
22nd Jul 20254311 AMAQI
22nd Jul 20254412 PMAQI
22nd Jul 2025421 PMAQI
22nd Jul 2025432 PMAQI
22nd Jul 2025433 PMAQI
22nd Jul 2025434 PMAQI
22nd Jul 2025435 PMAQI
22nd Jul 2025426 PMAQI
22nd Jul 2025437 PMAQI
22nd Jul 2025438 PMAQI
22nd Jul 2025449 PMAQI
22nd Jul 20254210 PMAQI
22nd Jul 20254311 PMAQI
23rd Jul 20254612 AMAQI
23rd Jul 2025461 AMAQI
23rd Jul 2025422 AMAQI
23rd Jul 2025423 AMAQI
23rd Jul 2025454 AMAQI
23rd Jul 2025425 AMAQI
19°C15/25°C
23rd Jul 2025486 AMAQI
23rd Jul 2025457 AMAQI
23rd Jul 2025458 AMAQI
23rd Jul 2025469 AMAQI
23rd Jul 20254810 AMAQI
23rd Jul 20254611 AMAQI
23rd Jul 20254612 PMAQI
23rd Jul 2025461 PMAQI
23rd Jul 2025472 PMAQI
23rd Jul 2025463 PMAQI
23rd Jul 2025484 PMAQI
23rd Jul 2025485 PMAQI
23rd Jul 2025466 PMAQI
23rd Jul 2025457 PMAQI
23rd Jul 2025468 PMAQI
23rd Jul 2025439 PMAQI
23rd Jul 20254510 PMAQI
23rd Jul 20254511 PMAQI
24th Jul 20254512 AMAQI
24th Jul 2025461 AMAQI
24th Jul 2025502 AMAQI
24th Jul 2025503 AMAQI
24th Jul 2025504 AMAQI
24th Jul 2025485 AMAQI
22°C17/26°C
24th Jul 2025506 AMAQI
24th Jul 2025507 AMAQI
24th Jul 2025488 AMAQI
24th Jul 2025489 AMAQI
24th Jul 20254810 AMAQI
24th Jul 20255011 AMAQI
24th Jul 20255012 PMAQI
24th Jul 2025501 PMAQI
24th Jul 2025512 PMAQI
24th Jul 2025523 PMAQI
24th Jul 2025524 PMAQI
24th Jul 2025535 PMAQI
24th Jul 2025526 PMAQI
24th Jul 2025517 PMAQI
24th Jul 2025498 PMAQI
24th Jul 2025469 PMAQI
24th Jul 20254910 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20254812 AMAQI
25th Jul 2025461 AMAQI
25th Jul 2025472 AMAQI
25th Jul 2025483 AMAQI
25th Jul 2025464 AMAQI
25th Jul 2025465 AMAQI
25°C18/32°C
25th Jul 2025446 AMAQI
25th Jul 2025467 AMAQI
25th Jul 2025478 AMAQI
25th Jul 2025479 AMAQI
25th Jul 20254310 AMAQI
25th Jul 20254511 AMAQI
25th Jul 20254512 PMAQI
25th Jul 2025471 PMAQI
25th Jul 2025472 PMAQI
25th Jul 2025483 PMAQI
25th Jul 2025464 PMAQI
25th Jul 2025455 PMAQI
25th Jul 2025466 PMAQI
25th Jul 2025467 PMAQI
25th Jul 2025488 PMAQI
25th Jul 2025479 PMAQI
25th Jul 20254410 PMAQI
25th Jul 20254511 PMAQI
26th Jul 20254412 AMAQI
26th Jul 2025441 AMAQI
26th Jul 2025422 AMAQI
26th Jul 2025383 AMAQI
26th Jul 2025394 AMAQI
26th Jul 2025405 AMAQI
26°C22/34°C
26th Jul 2025396 AMAQI
26th Jul 2025387 AMAQI
26th Jul 2025388 AMAQI
26th Jul 2025399 AMAQI
26th Jul 20254010 AMAQI
26th Jul 20254111 AMAQI
26th Jul 20254312 PMAQI
26th Jul 2025421 PMAQI
26th Jul 2025412 PMAQI
26th Jul 2025423 PMAQI
26th Jul 2025444 PMAQI
26th Jul 2025445 PMAQI
26th Jul 2025436 PMAQI
26th Jul 2025427 PMAQI
26th Jul 2025418 PMAQI
26th Jul 2025419 PMAQI
26th Jul 20254110 PMAQI
26th Jul 20254011 PMAQI
27th Jul 20254012 AMAQI
27th Jul 2025401 AMAQI
27th Jul 2025432 AMAQI
27th Jul 2025413 AMAQI
27th Jul 2025424 AMAQI
27th Jul 2025435 AMAQI
25°C20/30°C
27th Jul 2025406 AMAQI
27th Jul 2025407 AMAQI
27th Jul 2025398 AMAQI
27th Jul 2025409 AMAQI
27th Jul 20253910 AMAQI
27th Jul 20253811 AMAQI
27th Jul 20253612 PMAQI
27th Jul 2025371 PMAQI
27th Jul 2025372 PMAQI
27th Jul 2025383 PMAQI
27th Jul 2025364 PMAQI
27th Jul 2025385 PMAQI
27th Jul 2025376 PMAQI
27th Jul 2025387 PMAQI
27th Jul 2025388 PMAQI
27th Jul 2025389 PMAQI
27th Jul 20253810 PMAQI
27th Jul 20253811 PMAQI
28th Jul 20253812 AMAQI
28th Jul 2025391 AMAQI
28th Jul 2025382 AMAQI
28th Jul 2025383 AMAQI
28th Jul 2025364 AMAQI
28th Jul 2025385 AMAQI
24°C18/29°C
28th Jul 2025376 AMAQI
28th Jul 2025387 AMAQI
28th Jul 2025388 AMAQI
28th Jul 2025389 AMAQI
28th Jul 20253910 AMAQI
28th Jul 20254011 AMAQI
28th Jul 20253912 PMAQI
28th Jul 2025381 PMAQI
28th Jul 2025402 PMAQI
28th Jul 2025403 PMAQI
28th Jul 2025424 PMAQI
28th Jul 2025415 PMAQI
28th Jul 2025406 PMAQI
28th Jul 2025397 PMAQI
28th Jul 2025398 PMAQI
28th Jul 2025389 PMAQI
28th Jul 20253910 PMAQI
28th Jul 20254011 PMAQI
29th Jul 20254012 AMAQI
29th Jul 2025411 AMAQI
29th Jul 2025422 AMAQI
29th Jul 2025423 AMAQI
29th Jul 2025434 AMAQI
29th Jul 2025405 AMAQI
25°C18/32°C
29th Jul 2025416 AMAQI
29th Jul 2025437 AMAQI
29th Jul 2025438 AMAQI
29th Jul 2025449 AMAQI
29th Jul 20254410 AMAQI
29th Jul 20254411 AMAQI
29th Jul 20254312 PMAQI
29th Jul 2025441 PMAQI
29th Jul 2025432 PMAQI
29th Jul 2025463 PMAQI
29th Jul 2025444 PMAQI
29th Jul 2025445 PMAQI
29th Jul 2025446 PMAQI
29th Jul 2025427 PMAQI
29th Jul 2025428 PMAQI
29th Jul 2025439 PMAQI
29th Jul 20254310 PMAQI
29th Jul 20254311 PMAQI
30th Jul 20254312 AMAQI
30th Jul 2025441 AMAQI
30th Jul 2025432 AMAQI
30th Jul 2025423 AMAQI
30th Jul 2025424 AMAQI
30th Jul 2025425 AMAQI
26°C20/33°C
30th Jul 2025426 AMAQI
30th Jul 2025447 AMAQI
30th Jul 2025438 AMAQI
30th Jul 2025449 AMAQI
30th Jul 20254410 AMAQI
30th Jul 20254611 AMAQI
30th Jul 20254612 PMAQI
30th Jul 2025451 PMAQI
30th Jul 2025462 PMAQI
30th Jul 2025463 PMAQI
30th Jul 2025464 PMAQI
30th Jul 2025465 PMAQI
30th Jul 2025466 PMAQI
30th Jul 2025467 PMAQI
30th Jul 2025468 PMAQI
30th Jul 2025459 PMAQI
30th Jul 20254710 PMAQI
30th Jul 20254611 PMAQI
31st Jul 20254612 AMAQI
31st Jul 2025431 AMAQI
31st Jul 2025422 AMAQI
31st Jul 2025423 AMAQI
31st Jul 2025424 AMAQI
31st Jul 2025425 AMAQI
26°C18/34°C
31st Jul 2025466 AMAQI
31st Jul 2025547 AMAQI
31st Jul 2025528 AMAQI
31st Jul 2025539 AMAQI
31st Jul 20255410 AMAQI
31st Jul 20255511 AMAQI
31st Jul 20255712 PMAQI
31st Jul 2025581 PMAQI
31st Jul 2025622 PMAQI
31st Jul 2025613 PMAQI
31st Jul 2025584 PMAQI
31st Jul 2025575 PMAQI
31st Jul 2025586 PMAQI
31st Jul 2025507 PMAQI
31st Jul 2025538 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255410 PMAQI
31st Jul 20255611 PMAQI
1st Aug 20256012 AMAQI
1st Aug 2025581 AMAQI
1st Aug 2025602 AMAQI
1st Aug 2025613 AMAQI
1st Aug 2025604 AMAQI
1st Aug 2025595 AMAQI
21°C16/24°C
1st Aug 2025616 AMAQI
1st Aug 2025607 AMAQI
1st Aug 2025598 AMAQI
1st Aug 2025579 AMAQI
1st Aug 20255810 AMAQI
1st Aug 20255611 AMAQI
1st Aug 20255512 PMAQI
1st Aug 2025541 PMAQI
1st Aug 2025552 PMAQI
1st Aug 2025543 PMAQI
1st Aug 2025544 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025536 PMAQI
1st Aug 2025587 PMAQI
1st Aug 2025488 PMAQI
1st Aug 2025419 PMAQI
1st Aug 20253810 PMAQI
1st Aug 20253811 PMAQI
2nd Aug 20253312 AMAQI
2nd Aug 2025321 AMAQI
2nd Aug 2025302 AMAQI
2nd Aug 2025303 AMAQI
2nd Aug 2025294 AMAQI
2nd Aug 2025285 AMAQI
19°C13/26°C
2nd Aug 2025286 AMAQI
2nd Aug 2025267 AMAQI
2nd Aug 2025268 AMAQI
2nd Aug 2025249 AMAQI
2nd Aug 20252210 AMAQI
2nd Aug 20252411 AMAQI
2nd Aug 20252312 PMAQI
2nd Aug 2025231 PMAQI
2nd Aug 2025232 PMAQI
2nd Aug 2025243 PMAQI
2nd Aug 2025234 PMAQI
2nd Aug 2025275 PMAQI
2nd Aug 2025256 PMAQI
2nd Aug 2025257 PMAQI
2nd Aug 2025318 PMAQI
2nd Aug 2025369 PMAQI
2nd Aug 20254010 PMAQI
2nd Aug 20254011 PMAQI
3rd Aug 20254112 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025412 AMAQI
3rd Aug 2025393 AMAQI
3rd Aug 2025424 AMAQI
3rd Aug 2025425 AMAQI
18°C11/25°C
3rd Aug 2025416 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025408 AMAQI
3rd Aug 2025409 AMAQI
3rd Aug 20254510 AMAQI
3rd Aug 20254711 AMAQI
3rd Aug 20255312 PMAQI
3rd Aug 2025561 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025573 PMAQI
3rd Aug 2025604 PMAQI
3rd Aug 2025625 PMAQI
3rd Aug 2025636 PMAQI
3rd Aug 2025407 PMAQI
3rd Aug 2025498 PMAQI
3rd Aug 2025589 PMAQI
3rd Aug 20255910 PMAQI
3rd Aug 20255811 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025551 AMAQI
4th Aug 2025502 AMAQI
4th Aug 2025553 AMAQI
4th Aug 2025574 AMAQI
4th Aug 2025565 AMAQI
19°C9/27°C
4th Aug 2025576 AMAQI
4th Aug 2025577 AMAQI
4th Aug 2025588 AMAQI
4th Aug 2025589 AMAQI
4th Aug 20255710 AMAQI
4th Aug 20255911 AMAQI
4th Aug 20256112 PMAQI
4th Aug 2025641 PMAQI
4th Aug 2025662 PMAQI
4th Aug 2025683 PMAQI
4th Aug 2025704 PMAQI
4th Aug 2025705 PMAQI
4th Aug 2025686 PMAQI
4th Aug 2025577 PMAQI
4th Aug 2025648 PMAQI
4th Aug 2025689 PMAQI
4th Aug 20256510 PMAQI
4th Aug 20256811 PMAQI
5th Aug 20256712 AMAQI
5th Aug 2025641 AMAQI
5th Aug 2025662 AMAQI
5th Aug 2025673 AMAQI
5th Aug 2025654 AMAQI
5th Aug 2025645 AMAQI
20°C11/29°C
5th Aug 2025676 AMAQI
5th Aug 2025667 AMAQI
5th Aug 2025658 AMAQI
5th Aug 2025649 AMAQI
5th Aug 20256610 AMAQI
5th Aug 20256711 AMAQI
5th Aug 20257012 PMAQI
5th Aug 2025701 PMAQI
5th Aug 2025742 PMAQI
5th Aug 2025743 PMAQI
5th Aug 2025784 PMAQI
5th Aug 2025795 PMAQI
5th Aug 2025806 PMAQI
5th Aug 2025667 PMAQI
5th Aug 2025718 PMAQI
5th Aug 2025799 PMAQI
5th Aug 20257810 PMAQI
5th Aug 20257911 PMAQI
6th Aug 20257912 AMAQI
6th Aug 2025751 AMAQI
6th Aug 2025742 AMAQI
6th Aug 2025743 AMAQI
6th Aug 2025764 AMAQI
6th Aug 2025765 AMAQI
21°C13/29°C
6th Aug 2025806 AMAQI
6th Aug 2025827 AMAQI
6th Aug 2025828 AMAQI
6th Aug 2025829 AMAQI
6th Aug 20258310 AMAQI
6th Aug 20258011 AMAQI
6th Aug 20258412 PMAQI
6th Aug 2025791 PMAQI
6th Aug 2025822 PMAQI
6th Aug 2025813 PMAQI
6th Aug 2025834 PMAQI
6th Aug 2025805 PMAQI
6th Aug 2025806 PMAQI
6th Aug 2025807 PMAQI
6th Aug 2025748 PMAQI
6th Aug 2025729 PMAQI
6th Aug 20257210 PMAQI
6th Aug 20256811 PMAQI
7th Aug 20256512 AMAQI
7th Aug 2025641 AMAQI
7th Aug 2025622 AMAQI
7th Aug 2025623 AMAQI
7th Aug 2025604 AMAQI
7th Aug 2025615 AMAQI
20°C16/25°C
7th Aug 2025626 AMAQI
7th Aug 2025647 AMAQI
7th Aug 2025668 AMAQI
7th Aug 2025689 AMAQI
7th Aug 20257010 AMAQI
7th Aug 20256911 AMAQI
7th Aug 20257012 PMAQI
7th Aug 2025711 PMAQI
7th Aug 2025712 PMAQI
7th Aug 2025723 PMAQI
7th Aug 2025714 PMAQI
7th Aug 2025745 PMAQI
7th Aug 2025756 PMAQI
7th Aug 2025707 PMAQI
7th Aug 2025688 PMAQI
7th Aug 2025739 PMAQI
7th Aug 20257210 PMAQI
7th Aug 20257311 PMAQI
8th Aug 20257212 AMAQI
8th Aug 2025741 AMAQI
8th Aug 2025772 AMAQI
8th Aug 2025733 AMAQI
8th Aug 2025714 AMAQI
8th Aug 2025725 AMAQI
21°C15/28°C
8th Aug 2025726 AMAQI
8th Aug 2025737 AMAQI
8th Aug 2025748 AMAQI
8th Aug 2025749 AMAQI
8th Aug 20257110 AMAQI
8th Aug 20257211 AMAQI
8th Aug 20256912 PMAQI
8th Aug 2025721 PMAQI
8th Aug 2025712 PMAQI
8th Aug 2025713 PMAQI
8th Aug 2025744 PMAQI
8th Aug 2025725 PMAQI
8th Aug 2025706 PMAQI
8th Aug 2025767 PMAQI
8th Aug 2025738 PMAQI
8th Aug 2025709 PMAQI
8th Aug 20257010 PMAQI
8th Aug 20256811 PMAQI
9th Aug 20256812 AMAQI
9th Aug 2025641 AMAQI
9th Aug 2025552 AMAQI
9th Aug 2025543 AMAQI
9th Aug 2025534 AMAQI
9th Aug 2025535 AMAQI
20°C12/28°C
9th Aug 2025546 AMAQI
9th Aug 2025557 AMAQI
9th Aug 2025548 AMAQI
9th Aug 2025549 AMAQI
9th Aug 20255310 AMAQI
9th Aug 20255311 AMAQI
9th Aug 20255412 PMAQI
9th Aug 2025551 PMAQI
9th Aug 2025562 PMAQI
9th Aug 2025583 PMAQI
9th Aug 2025584 PMAQI
9th Aug 2025595 PMAQI
9th Aug 2025586 PMAQI
9th Aug 2025587 PMAQI
9th Aug 2025588 PMAQI
9th Aug 2025589 PMAQI
9th Aug 20255710 PMAQI
9th Aug 20255711 PMAQI
10th Aug 20255612 AMAQI
10th Aug 2025551 AMAQI
10th Aug 2025502 AMAQI
10th Aug 2025483 AMAQI
10th Aug 2025464 AMAQI
10th Aug 2025425 AMAQI
20°C11/29°C
10th Aug 2025416 AMAQI
10th Aug 2025437 AMAQI
10th Aug 2025438 AMAQI
10th Aug 2025429 AMAQI
10th Aug 20254410 AMAQI
10th Aug 20254711 AMAQI
10th Aug 20254912 PMAQI
10th Aug 2025501 PMAQI
10th Aug 2025512 PMAQI
10th Aug 2025513 PMAQI
10th Aug 2025514 PMAQI
10th Aug 2025525 PMAQI
10th Aug 2025506 PMAQI
10th Aug 2025517 PMAQI
10th Aug 2025518 PMAQI
10th Aug 2025509 PMAQI
10th Aug 20255210 PMAQI
10th Aug 20255211 PMAQI
11th Aug 20255012 AMAQI
11th Aug 2025461 AMAQI
11th Aug 2025442 AMAQI
11th Aug 2025423 AMAQI
11th Aug 2025434 AMAQI
11th Aug 2025425 AMAQI
21°C12/30°C
11th Aug 2025446 AMAQI
11th Aug 2025447 AMAQI
11th Aug 2025468 AMAQI
11th Aug 2025439 AMAQI
11th Aug 20254410 AMAQI
11th Aug 20254411 AMAQI
11th Aug 20254612 PMAQI
11th Aug 2025451 PMAQI
11th Aug 2025472 PMAQI
11th Aug 2025463 PMAQI
11th Aug 2025484 PMAQI
11th Aug 2025455 PMAQI
11th Aug 2025436 PMAQI
11th Aug 2025477 PMAQI
11th Aug 2025468 PMAQI
11th Aug 2025449 PMAQI
11th Aug 20254310 PMAQI
11th Aug 20254311 PMAQI
12th Aug 20254412 AMAQI
12th Aug 2025421 AMAQI
12th Aug 2025442 AMAQI
12th Aug 2025443 AMAQI
12th Aug 2025434 AMAQI
12th Aug 2025415 AMAQI
22°C14/28°C
12th Aug 2025446 AMAQI
12th Aug 2025457 AMAQI
12th Aug 2025448 AMAQI
12th Aug 2025429 AMAQI
12th Aug 20254010 AMAQI
12th Aug 20253911 AMAQI
12th Aug 20254012 PMAQI
12th Aug 2025371 PMAQI
12th Aug 2025372 PMAQI
12th Aug 2025363 PMAQI
12th Aug 2025344 PMAQI
12th Aug 2025315 PMAQI
12th Aug 2025306 PMAQI
12th Aug 2025437 PMAQI
12th Aug 2025408 PMAQI
12th Aug 2025369 PMAQI
12th Aug 20253610 PMAQI
12th Aug 20253611 PMAQI
13th Aug 20253312 AMAQI
13th Aug 2025321 AMAQI
13th Aug 2025332 AMAQI
13th Aug 2025343 AMAQI
13th Aug 2025304 AMAQI
13th Aug 2025305 AMAQI
23°C15/30°C
13th Aug 2025306 AMAQI
13th Aug 2025307 AMAQI
13th Aug 2025308 AMAQI
13th Aug 2025309 AMAQI
13th Aug 20253010 AMAQI
13th Aug 20253011 AMAQI
13th Aug 20253212 PMAQI
13th Aug 2025361 PMAQI
13th Aug 2025372 PMAQI
13th Aug 2025343 PMAQI
13th Aug 2025324 PMAQI
13th Aug 2025285 PMAQI
13th Aug 2025286 PMAQI
13th Aug 2025337 PMAQI
13th Aug 2025308 PMAQI
13th Aug 2025289 PMAQI
13th Aug 20253110 PMAQI
13th Aug 20253411 PMAQI
14th Aug 20253412 AMAQI
14th Aug 2025361 AMAQI
14th Aug 2025382 AMAQI
14th Aug 2025383 AMAQI
14th Aug 2025364 AMAQI
14th Aug 2025365 AMAQI
24°C17/31°C
14th Aug 2025386 AMAQI
6 AM14th Aug 2025377 AMAQI
14th Aug 2025348 AMAQI
14th Aug 2025319 AMAQI
14th Aug 20253110 AMAQI
1 PM
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 PM
48AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM
48AQI
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. 48), while the lowest AQI was between 6 AM to 8 PM (Avg. 48).
Night time
Avg. Highest Time
9 PM - 11 PM
48AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
12 AM - 5 AM
46AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 48), while the lowest AQI was between 12 AM to 5 AM (Avg. 46).
2025 Days Vs Air Quality
2nd Avenue, Altoona, Pennsylvania, United States
2025
79%
110
21%
30
Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)
Good
110 DaysModerate
30 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2025, 79% of 226 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
2nd Avenue, 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 March 2025
22AQI
22AQI
2nd March 2025
37AQI
37AQI
3rd March 2025
55AQI
55AQI
4th March 2025
50AQI
50AQI
5th 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
61AQI
61AQI
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
44AQI
44AQI
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
49AQI
49AQI
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
32AQI
32AQI
37AQI
25AQI
23AQI
46AQI
46AQI
54AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202537AQI
4
1
28
2
31
18
12
23
8
6
7
110
30
Highest AQI recorded in
August54AQI
Lowest AQI recorded in
May23AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
37AQILeast Polluted Year Recorded
2025(Avg.)
37AQI2nd Avenue's annual 2025 AQI (37) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
