Johnstown, 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
Johnstown, Pennsylvania, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
8th Aug 2025
76AQILowest AQI recorded on
8th Aug 2024
15AQISame Day Analysis (6th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 42 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Johnstown, Pennsylvania, United States
AQI
Day
Night
.
6 AM5th Aug 2026
8 PM
5 AM6th Aug 2026
Day time
Avg. Highest Time
2PM5th Aug
46AQI
Avg. Lowest Time
7PM5th Aug
26AQI
Night time
Avg. Highest Time
2AM6th Aug
46AQI
Avg. Lowest Time
11PM5th Aug
22AQI
In the last 24 hours,
Johnstown's AQI reached its highest point of 46 at 2 PM during the Day, while the lowest point, 22, was recorded at 11 PM during the Night between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Johnstown, Pennsylvania, United States
JulAug
08th - 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 - 06th06th
Day
Night
8th Jul 2026256 AMAQI
8th Jul 2026217 AMAQI
8th Jul 2026218 AMAQI
8th Jul 2026219 AMAQI
8th Jul 20261910 AMAQI
8th Jul 20263311 AMAQI
8th Jul 20262512 PMAQI
8th Jul 2026251 PMAQI
8th Jul 2026252 PMAQI
8th Jul 2026213 PMAQI
8th Jul 2026194 PMAQI
8th Jul 2026255 PMAQI
8th Jul 2026256 PMAQI
8th Jul 2026257 PMAQI
8th Jul 2026258 PMAQI
8th Jul 2026259 PMAQI
8th Jul 20262510 PMAQI
8th Jul 20262911 PMAQI
9th Jul 20262912 AMAQI
9th Jul 2026291 AMAQI
9th Jul 2026292 AMAQI
9th Jul 2026273 AMAQI
9th Jul 2026264 AMAQI
9th Jul 2026275 AMAQI
24°C20/30°C
9th Jul 2026296 AMAQI
9th Jul 2026337 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026309 AMAQI
9th Jul 20263210 AMAQI
9th Jul 20263011 AMAQI
9th Jul 20263012 PMAQI
9th Jul 2026281 PMAQI
9th Jul 2026292 PMAQI
9th Jul 2026243 PMAQI
9th Jul 2026284 PMAQI
9th Jul 2026255 PMAQI
9th Jul 2026286 PMAQI
9th Jul 2026217 PMAQI
9th Jul 2026268 PMAQI
9th Jul 2026259 PMAQI
9th Jul 20262510 PMAQI
9th Jul 20262911 PMAQI
10th Jul 20262412 AMAQI
10th Jul 2026221 AMAQI
10th Jul 2026222 AMAQI
10th Jul 2026253 AMAQI
10th Jul 2026314 AMAQI
10th Jul 2026305 AMAQI
24°C19/30°C
10th Jul 2026336 AMAQI
10th Jul 2026347 AMAQI
10th Jul 2026338 AMAQI
10th Jul 2026339 AMAQI
10th Jul 20263310 AMAQI
10th Jul 20263311 AMAQI
10th Jul 20263812 PMAQI
10th Jul 2026381 PMAQI
10th Jul 2026332 PMAQI
10th Jul 2026383 PMAQI
10th Jul 2026294 PMAQI
10th Jul 2026255 PMAQI
10th Jul 2026236 PMAQI
10th Jul 2026217 PMAQI
10th Jul 2026178 PMAQI
10th Jul 2026269 PMAQI
10th Jul 20262410 PMAQI
10th Jul 20261711 PMAQI
11th Jul 20261712 AMAQI
11th Jul 2026211 AMAQI
11th Jul 2026232 AMAQI
11th Jul 2026263 AMAQI
11th Jul 2026194 AMAQI
11th Jul 2026215 AMAQI
23°C19/28°C
11th Jul 2026216 AMAQI
11th Jul 2026227 AMAQI
11th Jul 2026198 AMAQI
11th Jul 2026239 AMAQI
11th Jul 20262610 AMAQI
11th Jul 20262111 AMAQI
11th Jul 20262612 PMAQI
11th Jul 2026231 PMAQI
11th Jul 2026252 PMAQI
11th Jul 2026303 PMAQI
11th Jul 2026284 PMAQI
11th Jul 2026235 PMAQI
11th Jul 2026266 PMAQI
11th Jul 2026267 PMAQI
11th Jul 2026268 PMAQI
11th Jul 2026219 PMAQI
11th Jul 20262110 PMAQI
11th Jul 20262111 PMAQI
12th Jul 20262612 AMAQI
12th Jul 2026251 AMAQI
12th Jul 2026252 AMAQI
12th Jul 2026273 AMAQI
12th Jul 2026264 AMAQI
12th Jul 2026265 AMAQI
23°C18/29°C
12th Jul 2026346 AMAQI
12th Jul 2026327 AMAQI
12th Jul 2026328 AMAQI
12th Jul 2026329 AMAQI
12th Jul 20263010 AMAQI
12th Jul 20262711 AMAQI
12th Jul 20262712 PMAQI
12th Jul 2026291 PMAQI
12th Jul 2026252 PMAQI
12th Jul 2026283 PMAQI
12th Jul 2026284 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026236 PMAQI
12th Jul 2026237 PMAQI
12th Jul 2026258 PMAQI
12th Jul 2026219 PMAQI
12th Jul 20262510 PMAQI
12th Jul 20262311 PMAQI
13th Jul 20262912 AMAQI
13th Jul 2026291 AMAQI
13th Jul 2026312 AMAQI
13th Jul 2026313 AMAQI
13th Jul 2026314 AMAQI
13th Jul 2026315 AMAQI
23°C17/28°C
13th Jul 2026296 AMAQI
13th Jul 2026297 AMAQI
13th Jul 2026348 AMAQI
13th Jul 2026289 AMAQI
13th Jul 20263410 AMAQI
13th Jul 20263411 AMAQI
13th Jul 20263412 PMAQI
13th Jul 2026341 PMAQI
13th Jul 2026232 PMAQI
13th Jul 2026263 PMAQI
13th Jul 2026324 PMAQI
13th Jul 2026285 PMAQI
13th Jul 2026306 PMAQI
13th Jul 2026257 PMAQI
13th Jul 2026258 PMAQI
13th Jul 2026259 PMAQI
13th Jul 20262610 PMAQI
13th Jul 20263311 PMAQI
14th Jul 20263312 AMAQI
14th Jul 2026361 AMAQI
14th Jul 2026302 AMAQI
14th Jul 2026293 AMAQI
14th Jul 2026344 AMAQI
14th Jul 2026295 AMAQI
24°C17/31°C
14th Jul 2026326 AMAQI
14th Jul 2026347 AMAQI
14th Jul 2026408 AMAQI
14th Jul 2026389 AMAQI
14th Jul 20263610 AMAQI
14th Jul 20263411 AMAQI
14th Jul 20263712 PMAQI
14th Jul 2026301 PMAQI
14th Jul 2026322 PMAQI
14th Jul 2026303 PMAQI
14th Jul 2026344 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026306 PMAQI
14th Jul 2026327 PMAQI
14th Jul 2026328 PMAQI
14th Jul 2026339 PMAQI
14th Jul 20262710 PMAQI
14th Jul 20262911 PMAQI
15th Jul 20262012 AMAQI
15th Jul 2026221 AMAQI
15th Jul 2026322 AMAQI
15th Jul 2026303 AMAQI
15th Jul 2026344 AMAQI
15th Jul 2026365 AMAQI
25°C17/33°C
15th Jul 2026426 AMAQI
15th Jul 2026447 AMAQI
15th Jul 2026378 AMAQI
15th Jul 2026449 AMAQI
15th Jul 20263210 AMAQI
15th Jul 20262911 AMAQI
15th Jul 20262812 PMAQI
15th Jul 2026321 PMAQI
15th Jul 2026322 PMAQI
15th Jul 2026313 PMAQI
15th Jul 2026324 PMAQI
15th Jul 2026305 PMAQI
15th Jul 2026326 PMAQI
15th Jul 2026327 PMAQI
15th Jul 2026308 PMAQI
15th Jul 2026369 PMAQI
15th Jul 20263210 PMAQI
15th Jul 20263411 PMAQI
16th Jul 20263512 AMAQI
16th Jul 2026321 AMAQI
16th Jul 2026302 AMAQI
16th Jul 2026243 AMAQI
16th Jul 2026284 AMAQI
16th Jul 2026375 AMAQI
27°C20/35°C
16th Jul 2026366 AMAQI
16th Jul 2026347 AMAQI
16th Jul 2026388 AMAQI
16th Jul 2026289 AMAQI
16th Jul 20263010 AMAQI
16th Jul 20263811 AMAQI
16th Jul 20263212 PMAQI
16th Jul 2026301 PMAQI
16th Jul 2026282 PMAQI
16th Jul 2026303 PMAQI
16th Jul 20261184 PMAQI
16th Jul 2026305 PMAQI
16th Jul 2026286 PMAQI
16th Jul 2026267 PMAQI
16th Jul 2026288 PMAQI
16th Jul 2026319 PMAQI
16th Jul 20262810 PMAQI
16th Jul 20262811 PMAQI
17th Jul 202610012 AMAQI
17th Jul 20261041 AMAQI
17th Jul 20261102 AMAQI
17th Jul 2026313 AMAQI
17th Jul 2026274 AMAQI
17th Jul 2026725 AMAQI
27°C22/34°C
17th Jul 2026666 AMAQI
17th Jul 2026687 AMAQI
17th Jul 2026708 AMAQI
17th Jul 2026749 AMAQI
17th Jul 20266810 AMAQI
17th Jul 20267211 AMAQI
17th Jul 20266712 PMAQI
17th Jul 2026681 PMAQI
17th Jul 2026742 PMAQI
17th Jul 2026663 PMAQI
17th Jul 2026724 PMAQI
17th Jul 2026725 PMAQI
17th Jul 2026646 PMAQI
17th Jul 2026667 PMAQI
17th Jul 2026698 PMAQI
17th Jul 2026649 PMAQI
17th Jul 20266810 PMAQI
17th Jul 20266211 PMAQI
18th Jul 20266512 AMAQI
18th Jul 2026621 AMAQI
18th Jul 2026582 AMAQI
18th Jul 2026633 AMAQI
18th Jul 2026644 AMAQI
18th Jul 2026685 AMAQI
22°C16/30°C
18th Jul 2026596 AMAQI
18th Jul 2026687 AMAQI
18th Jul 2026648 AMAQI
18th Jul 2026629 AMAQI
18th Jul 20267010 AMAQI
18th Jul 20266811 AMAQI
18th Jul 20266612 PMAQI
18th Jul 2026681 PMAQI
18th Jul 2026712 PMAQI
18th Jul 2026783 PMAQI
18th Jul 2026664 PMAQI
18th Jul 2026505 PMAQI
18th Jul 2026446 PMAQI
18th Jul 2026467 PMAQI
18th Jul 2026468 PMAQI
18th Jul 2026429 PMAQI
18th Jul 20262910 PMAQI
18th Jul 20264811 PMAQI
19th Jul 20264412 AMAQI
19th Jul 2026361 AMAQI
19th Jul 2026562 AMAQI
19th Jul 2026433 AMAQI
19th Jul 2026544 AMAQI
19th Jul 2026665 AMAQI
23°C17/30°C
19th Jul 2026686 AMAQI
19th Jul 2026707 AMAQI
19th Jul 2026728 AMAQI
19th Jul 2026729 AMAQI
19th Jul 20267310 AMAQI
19th Jul 20267211 AMAQI
19th Jul 20268212 PMAQI
19th Jul 2026771 PMAQI
19th Jul 2026722 PMAQI
19th Jul 2026783 PMAQI
19th Jul 2026774 PMAQI
19th Jul 2026705 PMAQI
19th Jul 2026726 PMAQI
19th Jul 2026747 PMAQI
19th Jul 2026768 PMAQI
19th Jul 2026779 PMAQI
19th Jul 20267710 PMAQI
19th Jul 20267211 PMAQI
20th Jul 20266412 AMAQI
20th Jul 2026651 AMAQI
20th Jul 2026682 AMAQI
20th Jul 2026703 AMAQI
20th Jul 2026804 AMAQI
20th Jul 2026705 AMAQI
21°C18/24°C
20th Jul 2026746 AMAQI
20th Jul 2026737 AMAQI
20th Jul 2026738 AMAQI
20th Jul 2026699 AMAQI
20th Jul 20267010 AMAQI
20th Jul 20267011 AMAQI
20th Jul 20267012 PMAQI
20th Jul 2026641 PMAQI
20th Jul 2026632 PMAQI
20th Jul 2026703 PMAQI
20th Jul 2026794 PMAQI
20th Jul 2026705 PMAQI
20th Jul 2026736 PMAQI
20th Jul 2026777 PMAQI
20th Jul 2026788 PMAQI
20th Jul 2026809 PMAQI
20th Jul 20267610 PMAQI
21st Jul 20266012 AMAQI
21st Jul 2026701 AMAQI
21st Jul 2026652 AMAQI
21st Jul 2026623 AMAQI
21st Jul 2026644 AMAQI
21st Jul 2026665 AMAQI
20°C12/29°C
21st Jul 2026686 AMAQI
21st Jul 2026667 AMAQI
21st Jul 2026718 AMAQI
21st Jul 2026729 AMAQI
21st Jul 20267410 AMAQI
21st Jul 20267511 AMAQI
21st Jul 20267312 PMAQI
21st Jul 2026701 PMAQI
21st Jul 2026682 PMAQI
21st Jul 2026703 PMAQI
21st Jul 2026684 PMAQI
21st Jul 2026605 PMAQI
21st Jul 2026536 PMAQI
21st Jul 2026497 PMAQI
21st Jul 2026408 PMAQI
21st Jul 2026219 PMAQI
21st Jul 20262510 PMAQI
21st Jul 20263311 PMAQI
22nd Jul 20263612 AMAQI
22nd Jul 2026211 AMAQI
22nd Jul 2026422 AMAQI
22nd Jul 2026463 AMAQI
22nd Jul 2026444 AMAQI
22nd Jul 2026325 AMAQI
22°C17/29°C
22nd Jul 2026426 AMAQI
22nd Jul 2026427 AMAQI
22nd Jul 2026408 AMAQI
22nd Jul 2026249 AMAQI
22nd Jul 20262810 AMAQI
22nd Jul 20263811 AMAQI
22nd Jul 20262512 PMAQI
22nd Jul 2026331 PMAQI
22nd Jul 2026382 PMAQI
22nd Jul 2026363 PMAQI
22nd Jul 2026274 PMAQI
22nd Jul 2026225 PMAQI
22nd Jul 2026256 PMAQI
22nd Jul 2026257 PMAQI
22nd Jul 2026328 PMAQI
22nd Jul 2026369 PMAQI
22nd Jul 20262910 PMAQI
22nd Jul 20262111 PMAQI
23rd Jul 20262512 AMAQI
23rd Jul 2026251 AMAQI
23rd Jul 2026292 AMAQI
23rd Jul 2026333 AMAQI
23rd Jul 2026274 AMAQI
23rd Jul 2026255 AMAQI
19°C15/23°C
23rd Jul 2026386 AMAQI
23rd Jul 2026427 AMAQI
23rd Jul 2026548 AMAQI
23rd Jul 2026219 AMAQI
23rd Jul 20263110 AMAQI
23rd Jul 20265011 AMAQI
23rd Jul 20264812 PMAQI
23rd Jul 2026381 PMAQI
23rd Jul 2026162 PMAQI
23rd Jul 2026163 PMAQI
23rd Jul 2026264 PMAQI
23rd Jul 2026335 PMAQI
23rd Jul 2026296 PMAQI
23rd Jul 2026217 PMAQI
23rd Jul 2026428 PMAQI
23rd Jul 2026369 PMAQI
23rd Jul 20262610 PMAQI
23rd Jul 20262711 PMAQI
24th Jul 20262512 AMAQI
24th Jul 2026381 AMAQI
24th Jul 2026382 AMAQI
24th Jul 2026303 AMAQI
24th Jul 2026264 AMAQI
24th Jul 2026365 AMAQI
18°C10/24°C
24th Jul 2026326 AMAQI
24th Jul 2026327 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026569 AMAQI
24th Jul 20262610 AMAQI
24th Jul 20263011 AMAQI
24th Jul 20263312 PMAQI
24th Jul 2026261 PMAQI
24th Jul 2026332 PMAQI
24th Jul 2026223 PMAQI
24th Jul 2026304 PMAQI
24th Jul 2026285 PMAQI
24th Jul 2026236 PMAQI
24th Jul 2026297 PMAQI
24th Jul 2026268 PMAQI
24th Jul 2026259 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20262911 PMAQI
25th Jul 20263812 AMAQI
25th Jul 2026251 AMAQI
25th Jul 2026292 AMAQI
25th Jul 2026363 AMAQI
25th Jul 2026474 AMAQI
25th Jul 2026335 AMAQI
20°C11/28°C
25th Jul 2026426 AMAQI
25th Jul 2026487 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20262710 AMAQI
25th Jul 20264011 AMAQI
25th Jul 20262812 PMAQI
25th Jul 2026381 PMAQI
25th Jul 2026402 PMAQI
25th Jul 2026443 PMAQI
25th Jul 2026464 PMAQI
25th Jul 2026445 PMAQI
25th Jul 2026406 PMAQI
25th Jul 2026467 PMAQI
25th Jul 2026468 PMAQI
25th Jul 2026409 PMAQI
25th Jul 20264410 PMAQI
25th Jul 20264611 PMAQI
26th Jul 20265012 AMAQI
26th Jul 2026461 AMAQI
26th Jul 2026462 AMAQI
26th Jul 2026463 AMAQI
26th Jul 2026464 AMAQI
26th Jul 2026425 AMAQI
21°C16/27°C
26th Jul 2026556 AMAQI
26th Jul 2026547 AMAQI
26th Jul 2026548 AMAQI
26th Jul 2026429 AMAQI
26th Jul 20264410 AMAQI
26th Jul 20264411 AMAQI
26th Jul 20265312 PMAQI
26th Jul 2026531 PMAQI
26th Jul 2026482 PMAQI
26th Jul 2026423 PMAQI
26th Jul 2026424 PMAQI
26th Jul 2026385 PMAQI
26th Jul 2026256 PMAQI
26th Jul 2026427 PMAQI
26th Jul 2026428 PMAQI
26th Jul 2026469 PMAQI
26th Jul 20264410 PMAQI
26th Jul 20265011 PMAQI
27th Jul 20264612 AMAQI
27th Jul 2026481 AMAQI
27th Jul 2026482 AMAQI
27th Jul 2026483 AMAQI
27th Jul 2026504 AMAQI
27th Jul 2026505 AMAQI
22°C16/28°C
27th Jul 2026466 AMAQI
27th Jul 2026507 AMAQI
27th Jul 2026488 AMAQI
27th Jul 2026519 AMAQI
27th Jul 20265210 AMAQI
27th Jul 20265211 AMAQI
27th Jul 20265312 PMAQI
27th Jul 2026521 PMAQI
27th Jul 2026522 PMAQI
27th Jul 2026533 PMAQI
27th Jul 2026534 PMAQI
27th Jul 2026535 PMAQI
27th Jul 2026556 PMAQI
27th Jul 2026597 PMAQI
27th Jul 2026668 PMAQI
27th Jul 2026679 PMAQI
27th Jul 20266810 PMAQI
27th Jul 20266611 PMAQI
28th Jul 20266412 AMAQI
28th Jul 2026691 AMAQI
28th Jul 2026652 AMAQI
28th Jul 2026603 AMAQI
28th Jul 2026664 AMAQI
28th Jul 2026625 AMAQI
23°C16/30°C
28th Jul 2026656 AMAQI
28th Jul 2026667 AMAQI
28th Jul 2026648 AMAQI
28th Jul 2026649 AMAQI
28th Jul 20265810 AMAQI
28th Jul 20265111 AMAQI
28th Jul 20264812 PMAQI
28th Jul 2026481 PMAQI
28th Jul 2026422 PMAQI
28th Jul 2026223 PMAQI
28th Jul 2026404 PMAQI
28th Jul 2026455 PMAQI
28th Jul 2026426 PMAQI
28th Jul 2026527 PMAQI
28th Jul 2026518 PMAQI
28th Jul 2026539 PMAQI
28th Jul 20265310 PMAQI
28th Jul 20265011 PMAQI
29th Jul 20264812 AMAQI
29th Jul 2026501 AMAQI
29th Jul 2026532 AMAQI
29th Jul 2026573 AMAQI
29th Jul 2026584 AMAQI
29th Jul 2026555 AMAQI
22°C19/27°C
29th Jul 2026546 AMAQI
29th Jul 2026527 AMAQI
29th Jul 2026488 AMAQI
29th Jul 2026429 AMAQI
29th Jul 20264210 AMAQI
29th Jul 20264011 AMAQI
29th Jul 20264012 PMAQI
29th Jul 2026301 PMAQI
29th Jul 2026342 PMAQI
29th Jul 2026503 PMAQI
29th Jul 2026314 PMAQI
29th Jul 2026235 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026387 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20262010 PMAQI
29th Jul 20264411 PMAQI
30th Jul 20262112 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026362 AMAQI
30th Jul 2026273 AMAQI
30th Jul 2026344 AMAQI
30th Jul 2026225 AMAQI
20°C17/23°C
30th Jul 2026226 AMAQI
30th Jul 2026297 AMAQI
30th Jul 2026228 AMAQI
30th Jul 2026299 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20262511 AMAQI
30th Jul 20262012 PMAQI
30th Jul 2026481 PMAQI
30th Jul 2026122 PMAQI
30th Jul 2026203 PMAQI
30th Jul 2026224 PMAQI
30th Jul 2026365 PMAQI
30th Jul 2026386 PMAQI
30th Jul 2026607 PMAQI
30th Jul 2026568 PMAQI
30th Jul 2026429 PMAQI
30th Jul 20263810 PMAQI
30th Jul 20264211 PMAQI
31st Jul 20264212 AMAQI
31st Jul 2026481 AMAQI
31st Jul 2026462 AMAQI
31st Jul 2026423 AMAQI
31st Jul 2026444 AMAQI
31st Jul 2026515 AMAQI
20°C14/28°C
31st Jul 2026446 AMAQI
31st Jul 2026497 AMAQI
31st Jul 2026518 AMAQI
31st Jul 2026559 AMAQI
31st Jul 20265810 AMAQI
31st Jul 20265811 AMAQI
31st Jul 20265312 PMAQI
31st Jul 2026491 PMAQI
31st Jul 2026402 PMAQI
31st Jul 2026293 PMAQI
31st Jul 2026344 PMAQI
31st Jul 2026275 PMAQI
31st Jul 2026406 PMAQI
31st Jul 2026487 PMAQI
31st Jul 2026468 PMAQI
31st Jul 2026469 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20264811 PMAQI
1st Aug 20265112 AMAQI
1st Aug 2026481 AMAQI
1st Aug 2026462 AMAQI
1st Aug 2026443 AMAQI
1st Aug 2026444 AMAQI
1st Aug 2026445 AMAQI
21°C12/28°C
1st Aug 2026426 AMAQI
1st Aug 2026427 AMAQI
1st Aug 2026448 AMAQI
1st Aug 2026409 AMAQI
1st Aug 20264410 AMAQI
1st Aug 20264411 AMAQI
1st Aug 20264212 PMAQI
1st Aug 2026421 PMAQI
1st Aug 2026422 PMAQI
1st Aug 2026443 PMAQI
1st Aug 2026464 PMAQI
1st Aug 2026535 PMAQI
1st Aug 2026496 PMAQI
1st Aug 2026447 PMAQI
1st Aug 2026448 PMAQI
1st Aug 2026429 PMAQI
1st Aug 20264410 PMAQI
1st Aug 20264611 PMAQI
2nd Aug 20264412 AMAQI
2nd Aug 2026501 AMAQI
2nd Aug 2026442 AMAQI
2nd Aug 2026513 AMAQI
2nd Aug 2026514 AMAQI
2nd Aug 2026515 AMAQI
22°C16/30°C
2nd Aug 2026496 AMAQI
2nd Aug 2026467 AMAQI
2nd Aug 2026518 AMAQI
2nd Aug 2026449 AMAQI
2nd Aug 20264810 AMAQI
2nd Aug 20264811 AMAQI
2nd Aug 20264612 PMAQI
2nd Aug 2026441 PMAQI
2nd Aug 2026402 PMAQI
2nd Aug 2026443 PMAQI
2nd Aug 2026384 PMAQI
2nd Aug 2026405 PMAQI
2nd Aug 2026386 PMAQI
2nd Aug 2026327 PMAQI
2nd Aug 2026208 PMAQI
2nd Aug 2026259 PMAQI
2nd Aug 20262010 PMAQI
2nd Aug 20262511 PMAQI
3rd Aug 20262712 AMAQI
3rd Aug 2026231 AMAQI
3rd Aug 2026252 AMAQI
3rd Aug 2026233 AMAQI
3rd Aug 2026214 AMAQI
3rd Aug 2026225 AMAQI
23°C20/27°C
3rd Aug 2026246 AMAQI
3rd Aug 2026267 AMAQI
3rd Aug 2026348 AMAQI
3rd Aug 2026369 AMAQI
3rd Aug 20263810 AMAQI
3rd Aug 20263611 AMAQI
3rd Aug 20263612 PMAQI
3rd Aug 2026401 PMAQI
3rd Aug 2026442 PMAQI
3rd Aug 2026203 PMAQI
3rd Aug 2026424 PMAQI
3rd Aug 2026145 PMAQI
3rd Aug 2026166 PMAQI
3rd Aug 2026187 PMAQI
3rd Aug 2026268 PMAQI
3rd Aug 2026249 PMAQI
3rd Aug 20262410 PMAQI
3rd Aug 20262611 PMAQI
4th Aug 20262412 AMAQI
4th Aug 2026261 AMAQI
4th Aug 2026272 AMAQI
4th Aug 2026293 AMAQI
4th Aug 2026254 AMAQI
4th Aug 2026385 AMAQI
22°C19/26°C
4th Aug 2026266 AMAQI
4th Aug 2026427 AMAQI
4th Aug 2026278 AMAQI
4th Aug 2026269 AMAQI
4th Aug 20263610 AMAQI
4th Aug 20262411 AMAQI
4th Aug 20264412 PMAQI
4th Aug 2026321 PMAQI
4th Aug 2026222 PMAQI
4th Aug 2026213 PMAQI
4th Aug 2026264 PMAQI
4th Aug 2026205 PMAQI
4th Aug 2026186 PMAQI
4th Aug 2026187 PMAQI
4th Aug 2026248 PMAQI
4th Aug 2026259 PMAQI
4th Aug 20263610 PMAQI
4th Aug 20264211 PMAQI
5th Aug 20263812 AMAQI
5th Aug 2026231 AMAQI
5th Aug 2026422 AMAQI
5th Aug 2026253 AMAQI
5th Aug 2026364 AMAQI
5th Aug 2026345 AMAQI
21°C12/30°C
5th Aug 2026426 AMAQI
5th Aug 2026407 AMAQI
5th Aug 2026298 AMAQI
5th Aug 2026269 AMAQI
5th Aug 20264410 AMAQI
5th Aug 20264211 AMAQI
5th Aug 20263812 PMAQI
5th Aug 2026301 PMAQI
5th Aug 2026462 PMAQI
5th Aug 2026383 PMAQI
5th Aug 2026334 PMAQI
5th Aug 2026385 PMAQI
5th Aug 2026286 PMAQI
5th Aug 2026267 PMAQI
5th Aug 2026338 PMAQI
5th Aug 2026249 PMAQI
5th Aug 20264010 PMAQI
5th Aug 20262211 PMAQI
6th Aug 20262512 AMAQI
6th Aug 2026361 AMAQI
6th Aug 2026462 AMAQI
6th Aug 2026283 AMAQI
6th Aug 2026444 AMAQI
6th Aug 2026345 AMAQI
24°C18/29°C
6th Aug 2026286 AMAQI
6 AM6th Aug 2026367 AMAQI
6th Aug 2026388 AMAQI
6th Aug 2026309 AMAQI
6th Aug 20263210 AMAQI
6th Aug 20264611 AMAQI
6th Aug 20265012 PMAQI
6th Aug 2026511 PMAQI
1 PM6th Aug 2026512 PMAQI
6th Aug 2026513 PMAQI
6th Aug 2026464 PMAQI
6th Aug 2026465 PMAQI
6th Aug 2026466 PMAQI
6th Aug 2026447 PMAQI
6th Aug 2026408 PMAQI
8 PM6th Aug 2026509 PMAQI
6th Aug 20265210 PMAQI
6th Aug 20264611 PMAQI
1 AM
5 AM
24°C19/30°C
Day time
Avg. Highest Time
7 AM - 8 AM
44AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
5 PM - 6 PM
37AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 8 AM (Avg. 44), while the lowest AQI was between 5 PM to 6 PM (Avg. 37).
Night time
Avg. Highest Time
2 AM
42AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
9 PM - 11 PM
38AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 2 AM (Avg. 42), while the lowest AQI was between 9 PM to 11 PM (Avg. 38).
2026 Days Vs Air Quality
Johnstown, Pennsylvania, United States
2026
89%
192
11%
23
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Good
192 DaysModerate
23 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2026, 89% of 218 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
Johnstown, Pennsylvania, 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
14AQI (US)
14AQI (US)
2nd January 2026
16AQI (US)
16AQI (US)
3rd January 2026
48AQI (US)
48AQI (US)
4th January 2026
55AQI (US)
55AQI (US)
5th January 2026
54AQI (US)
54AQI (US)
6th January 2026
56AQI (US)
56AQI (US)
7th January 2026
36AQI (US)
36AQI (US)
8th January 2026
43AQI (US)
43AQI (US)
9th January 2026
46AQI (US)
46AQI (US)
10th January 2026
22AQI (US)
22AQI (US)
11th January 2026
21AQI (US)
21AQI (US)
12th January 2026
23AQI (US)
23AQI (US)
13th January 2026
20AQI (US)
20AQI (US)
14th January 2026
19AQI (US)
19AQI (US)
15th January 2026
13AQI (US)
13AQI (US)
16th January 2026
18AQI (US)
18AQI (US)
17th January 2026
32AQI (US)
32AQI (US)
18th January 2026
29AQI (US)
29AQI (US)
19th January 2026
25AQI (US)
25AQI (US)
20th January 2026
19AQI (US)
19AQI (US)
21st January 2026
44AQI (US)
44AQI (US)
22nd January 2026
59AQI (US)
59AQI (US)
23rd January 2026
61AQI (US)
61AQI (US)
24th January 2026
50AQI (US)
50AQI (US)
25th January 2026
52AQI (US)
52AQI (US)
26th January 2026
49AQI (US)
49AQI (US)
27th January 2026
37AQI (US)
37AQI (US)
28th January 2026
46AQI (US)
46AQI (US)
29th January 2026
54AQI (US)
54AQI (US)
30th January 2026
64AQI (US)
64AQI (US)
31st January 2026
44AQI (US)
44AQI (US)
1st February 2026
46AQI (US)
46AQI (US)
2nd February 2026
52AQI (US)
52AQI (US)
3rd February 2026
48AQI (US)
48AQI (US)
4th February 2026
45AQI (US)
45AQI (US)
5th February 2026
50AQI (US)
50AQI (US)
6th February 2026
44AQI (US)
44AQI (US)
7th February 2026
40AQI (US)
40AQI (US)
8th February 2026
44AQI (US)
44AQI (US)
9th February 2026
49AQI (US)
49AQI (US)
10th February 2026
45AQI (US)
45AQI (US)
11th February 2026
40AQI (US)
40AQI (US)
12th February 2026
38AQI (US)
38AQI (US)
13th February 2026
47AQI (US)
47AQI (US)
14th February 2026
49AQI (US)
49AQI (US)
15th February 2026
39AQI (US)
39AQI (US)
16th February 2026
45AQI (US)
45AQI (US)
17th February 2026
43AQI (US)
43AQI (US)
18th February 2026
41AQI (US)
41AQI (US)
19th February 2026
42AQI (US)
42AQI (US)
20th February 2026
40AQI (US)
40AQI (US)
21st February 2026
37AQI (US)
37AQI (US)
22nd February 2026
38AQI (US)
38AQI (US)
23rd February 2026
38AQI (US)
38AQI (US)
24th February 2026
44AQI (US)
44AQI (US)
25th February 2026
45AQI (US)
45AQI (US)
26th February 2026
34AQI (US)
34AQI (US)
27th February 2026
34AQI (US)
34AQI (US)
28th February 2026
33AQI (US)
33AQI (US)
1st March 2026
38AQI (US)
38AQI (US)
2nd March 2026
55AQI (US)
55AQI (US)
3rd March 2026
44AQI (US)
44AQI (US)
4th March 2026
46AQI (US)
46AQI (US)
5th March 2026
38AQI (US)
38AQI (US)
6th March 2026
30AQI (US)
30AQI (US)
7th March 2026
38AQI (US)
38AQI (US)
8th March 2026
38AQI (US)
38AQI (US)
9th March 2026
37AQI (US)
37AQI (US)
10th March 2026
32AQI (US)
32AQI (US)
11th March 2026
42AQI (US)
42AQI (US)
12th March 2026
38AQI (US)
38AQI (US)
13th March 2026
41AQI (US)
41AQI (US)
14th March 2026
35AQI (US)
35AQI (US)
15th March 2026
32AQI (US)
32AQI (US)
16th March 2026
36AQI (US)
36AQI (US)
17th March 2026
35AQI (US)
35AQI (US)
18th March 2026
32AQI (US)
32AQI (US)
19th March 2026
34AQI (US)
34AQI (US)
20th March 2026
42AQI (US)
42AQI (US)
21st March 2026
38AQI (US)
38AQI (US)
22nd March 2026
34AQI (US)
34AQI (US)
23rd March 2026
41AQI (US)
41AQI (US)
24th March 2026
37AQI (US)
37AQI (US)
25th March 2026
33AQI (US)
33AQI (US)
26th March 2026
27AQI (US)
27AQI (US)
27th March 2026
30AQI (US)
30AQI (US)
28th March 2026
31AQI (US)
31AQI (US)
29th March 2026
27AQI (US)
27AQI (US)
30th March 2026
25AQI (US)
25AQI (US)
31st March 2026
24AQI (US)
24AQI (US)
1st April 2026
29AQI (US)
29AQI (US)
2nd April 2026
30AQI (US)
30AQI (US)
3rd April 2026
28AQI (US)
28AQI (US)
4th April 2026
31AQI (US)
31AQI (US)
5th April 2026
29AQI (US)
29AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
29AQI (US)
29AQI (US)
8th April 2026
40AQI (US)
40AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
30AQI (US)
30AQI (US)
11th April 2026
31AQI (US)
31AQI (US)
12th April 2026
24AQI (US)
24AQI (US)
13th April 2026
30AQI (US)
30AQI (US)
14th April 2026
32AQI (US)
32AQI (US)
15th April 2026
33AQI (US)
33AQI (US)
16th April 2026
30AQI (US)
30AQI (US)
17th April 2026
18th April 2026
31AQI (US)
31AQI (US)
19th April 2026
33AQI (US)
33AQI (US)
20th April 2026
29AQI (US)
29AQI (US)
21st April 2026
28AQI (US)
28AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
23AQI (US)
24th April 2026
25AQI (US)
25AQI (US)
25th April 2026
28AQI (US)
28AQI (US)
26th April 2026
33AQI (US)
33AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
26AQI (US)
26AQI (US)
29th April 2026
25AQI (US)
25AQI (US)
30th April 2026
27AQI (US)
27AQI (US)
1st May 2026
26AQI (US)
26AQI (US)
2nd May 2026
23AQI (US)
23AQI (US)
3rd May 2026
20AQI (US)
20AQI (US)
4th May 2026
36AQI (US)
36AQI (US)
5th May 2026
39AQI (US)
39AQI (US)
6th May 2026
30AQI (US)
30AQI (US)
7th May 2026
27AQI (US)
27AQI (US)
8th May 2026
29AQI (US)
29AQI (US)
9th May 2026
10th May 2026
31AQI (US)
31AQI (US)
11th May 2026
29AQI (US)
29AQI (US)
12th May 2026
31AQI (US)
31AQI (US)
13th May 2026
30AQI (US)
30AQI (US)
14th May 2026
26AQI (US)
26AQI (US)
15th May 2026
47AQI (US)
47AQI (US)
16th May 2026
52AQI (US)
52AQI (US)
17th May 2026
56AQI (US)
56AQI (US)
18th May 2026
58AQI (US)
58AQI (US)
19th May 2026
54AQI (US)
54AQI (US)
20th May 2026
50AQI (US)
50AQI (US)
21st May 2026
44AQI (US)
44AQI (US)
22nd May 2026
44AQI (US)
44AQI (US)
23rd May 2026
52AQI (US)
52AQI (US)
24th May 2026
48AQI (US)
48AQI (US)
25th May 2026
45AQI (US)
45AQI (US)
26th May 2026
29AQI (US)
29AQI (US)
27th May 2026
26AQI (US)
26AQI (US)
28th May 2026
19AQI (US)
19AQI (US)
29th May 2026
20AQI (US)
20AQI (US)
30th May 2026
21AQI (US)
21AQI (US)
31st May 2026
28AQI (US)
28AQI (US)
1st June 2026
28AQI (US)
28AQI (US)
2nd June 2026
24AQI (US)
24AQI (US)
3rd June 2026
21AQI (US)
21AQI (US)
4th June 2026
26AQI (US)
26AQI (US)
5th June 2026
30AQI (US)
30AQI (US)
6th June 2026
26AQI (US)
26AQI (US)
7th June 2026
25AQI (US)
25AQI (US)
8th June 2026
24AQI (US)
24AQI (US)
9th June 2026
26AQI (US)
26AQI (US)
10th June 2026
26AQI (US)
26AQI (US)
11th June 2026
28AQI (US)
28AQI (US)
12th June 2026
26AQI (US)
26AQI (US)
13th June 2026
24AQI (US)
24AQI (US)
14th June 2026
23AQI (US)
23AQI (US)
15th June 2026
24AQI (US)
24AQI (US)
16th June 2026
26AQI (US)
26AQI (US)
17th June 2026
27AQI (US)
27AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
22AQI (US)
22AQI (US)
20th June 2026
21AQI (US)
21AQI (US)
21st June 2026
18AQI (US)
18AQI (US)
22nd June 2026
24AQI (US)
24AQI (US)
23rd June 2026
19AQI (US)
19AQI (US)
24th June 2026
22AQI (US)
22AQI (US)
25th June 2026
25AQI (US)
25AQI (US)
26th June 2026
26AQI (US)
26AQI (US)
27th June 2026
29AQI (US)
29AQI (US)
28th June 2026
28AQI (US)
28AQI (US)
29th June 2026
25AQI (US)
25AQI (US)
30th June 2026
30AQI (US)
30AQI (US)
1st July 2026
40AQI (US)
40AQI (US)
2nd July 2026
64AQI (US)
64AQI (US)
3rd July 2026
47AQI (US)
47AQI (US)
4th July 2026
33AQI (US)
33AQI (US)
5th July 2026
28AQI (US)
28AQI (US)
6th July 2026
25AQI (US)
25AQI (US)
7th July 2026
24AQI (US)
24AQI (US)
8th July 2026
24AQI (US)
24AQI (US)
9th July 2026
28AQI (US)
28AQI (US)
10th July 2026
28AQI (US)
28AQI (US)
11th July 2026
23AQI (US)
23AQI (US)
12th July 2026
27AQI (US)
27AQI (US)
13th July 2026
30AQI (US)
30AQI (US)
14th July 2026
32AQI (US)
32AQI (US)
15th July 2026
33AQI (US)
33AQI (US)
16th July 2026
34AQI (US)
34AQI (US)
17th July 2026
70AQI (US)
70AQI (US)
18th July 2026
59AQI (US)
59AQI (US)
19th July 2026
68AQI (US)
68AQI (US)
20th July 2026
72AQI (US)
72AQI (US)
21st July 2026
60AQI (US)
60AQI (US)
22nd July 2026
33AQI (US)
33AQI (US)
23rd July 2026
32AQI (US)
32AQI (US)
24th July 2026
30AQI (US)
30AQI (US)
25th July 2026
40AQI (US)
40AQI (US)
26th July 2026
46AQI (US)
46AQI (US)
27th July 2026
54AQI (US)
54AQI (US)
28th July 2026
54AQI (US)
54AQI (US)
29th July 2026
41AQI (US)
41AQI (US)
30th July 2026
31AQI (US)
31AQI (US)
31st July 2026
46AQI (US)
46AQI (US)
1st August 2026
45AQI (US)
45AQI (US)
2nd August 2026
41AQI (US)
41AQI (US)
3rd August 2026
28AQI (US)
28AQI (US)
4th August 2026
28AQI (US)
28AQI (US)
5th August 2026
34AQI (US)
34AQI (US)
6th August 2026
42AQI (US)
42AQI (US)
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
38AQI (US)
43AQI (US)
36AQI (US)
29AQI (US)
36AQI (US)
25AQI (US)
41AQI (US)
36AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
23
8
27
1
30
1
28
25
5
30
23
8
6
192
23
Highest AQI (US) recorded in
February43AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202534AQI (US)
28
3
28
27
4
29
1
31
20
10
20
11
22
9
30
31
25
5
26
5
317
48
Highest AQI (US) recorded in
July45AQI (US)
Lowest AQI (US) recorded in
May22AQI (US)
202432AQI (US)
26
5
21
8
30
1
30
31
25
4
31
28
3
30
30
1
30
29
2
341
24
Highest AQI (US) recorded in
February39AQI (US)
Lowest AQI (US) recorded in
September26AQI (US)
202339AQI (US)
24
6
22
6
30
1
27
3
25
6
14
12
3
1
23
8
24
7
27
1
31
24
5
24
7
295
62
3
1
Highest AQI (US) recorded in
June63AQI (US)
Lowest AQI (US) recorded in
October26AQI (US)
202242AQI (US)
21
7
11
8
22
8
12
5
22
8
14
13
11
11
1
25
4
30
1
25
5
23
8
217
78
Highest AQI (US) recorded in
June51AQI (US)
Lowest AQI (US) recorded in
October34AQI (US)
202141AQI (US)
19
7
15
7
12
4
20
4
25
6
26
4
16
13
1
20
11
28
2
31
21
9
24
7
257
74
1
Highest AQI (US) recorded in
July53AQI (US)
Lowest AQI (US) recorded in
October31AQI (US)
202037AQI (US)
13
19
1
18
30
28
3
29
2
29
1
29
1
21
7
26
5
242
20
Highest AQI (US) recorded in
November45AQI (US)
Lowest AQI (US) recorded in
March30AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2022(Avg.)
42AQI (US)Least Polluted Year Recorded
2024(Avg.)
32AQI (US)Johnstown's annual 2026 AQI (US) (35) shows an average percentage change of -5.7% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (41), 2022 (42), 2023 (39), 2024 (32), 2025 (34).
