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HistoryAQIPM2.5PM10COSO2NO2O3

Hagerstown, Halfway, Maryland, 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

Hagerstown, Halfway, Maryland, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Aug 2023
51AQI
Lowest AQI recorded on
8th Aug 2024
13AQI

Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 38 of Good air quality, showing improvement over 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025

Hagerstown, Halfway, Maryland, United States

AQI
Day
Night
.

6 AM3rd Aug 2025

8 PM

5 AM4th Aug 2025

Day time
Avg. Highest Time
6PM3rd Aug

40AQI

Avg. Lowest Time
3PM3rd Aug

33AQI

Night time
Avg. Highest Time
4AM4th Aug

40AQI

Avg. Lowest Time
2AM4th Aug

35AQI

In the last 24 hours,

Hagerstown's AQI reached its highest point of 40 at 6 PM during the Day, while the lowest point, 33, was recorded at 3 PM during the Day between 3rd Aug and 4th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Hagerstown, Halfway, Maryland, United States

JulAug
05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025676 AMAQI
5th Jul 2025667 AMAQI
5th Jul 2025688 AMAQI
5th Jul 2025659 AMAQI
5th Jul 20256610 AMAQI
5th Jul 20256211 AMAQI
5th Jul 20256312 PMAQI
5th Jul 2025601 PMAQI
5th Jul 2025622 PMAQI
5th Jul 2025623 PMAQI
5th Jul 2025624 PMAQI
5th Jul 2025635 PMAQI
5th Jul 2025636 PMAQI
5th Jul 2025637 PMAQI
5th Jul 2025678 PMAQI
5th Jul 2025629 PMAQI
5th Jul 20256310 PMAQI
5th Jul 20256411 PMAQI
6th Jul 20256512 AMAQI
6th Jul 2025621 AMAQI
6th Jul 2025572 AMAQI
6th Jul 2025573 AMAQI
6th Jul 2025574 AMAQI
6th Jul 2025565 AMAQI

--°C/°C

6th Jul 2025586 AMAQI
6th Jul 2025577 AMAQI
6th Jul 2025578 AMAQI
6th Jul 2025569 AMAQI
6th Jul 20255810 AMAQI
6th Jul 20255611 AMAQI
6th Jul 20255512 PMAQI
6th Jul 2025531 PMAQI
6th Jul 2025532 PMAQI
6th Jul 2025543 PMAQI
6th Jul 2025504 PMAQI
6th Jul 2025525 PMAQI
6th Jul 2025526 PMAQI
6th Jul 2025547 PMAQI
6th Jul 2025568 PMAQI
6th Jul 2025529 PMAQI
6th Jul 20255010 PMAQI
6th Jul 20255211 PMAQI
7th Jul 20254612 AMAQI
7th Jul 2025291 AMAQI
7th Jul 2025222 AMAQI
7th Jul 2025243 AMAQI
7th Jul 2025314 AMAQI
7th Jul 2025295 AMAQI

24°C17/32°C

7th Jul 2025286 AMAQI
7th Jul 2025307 AMAQI
7th Jul 2025348 AMAQI
7th Jul 2025349 AMAQI
7th Jul 20253410 AMAQI
7th Jul 20253411 AMAQI
7th Jul 20253412 PMAQI
7th Jul 2025381 PMAQI
7th Jul 2025382 PMAQI
7th Jul 2025383 PMAQI
7th Jul 2025384 PMAQI
7th Jul 2025425 PMAQI
7th Jul 2025426 PMAQI
7th Jul 2025387 PMAQI
7th Jul 2025358 PMAQI
7th Jul 2025379 PMAQI
7th Jul 20253710 PMAQI
7th Jul 20253611 PMAQI
8th Jul 20253712 AMAQI
8th Jul 2025341 AMAQI
8th Jul 2025302 AMAQI
8th Jul 2025313 AMAQI
8th Jul 2025334 AMAQI
8th Jul 2025345 AMAQI

27°C21/34°C

8th Jul 2025336 AMAQI
8th Jul 2025377 AMAQI
8th Jul 2025388 AMAQI
8th Jul 2025409 AMAQI
8th Jul 20254110 AMAQI
8th Jul 20253911 AMAQI
8th Jul 20254112 PMAQI
8th Jul 2025411 PMAQI
8th Jul 2025432 PMAQI
8th Jul 2025463 PMAQI
8th Jul 2025434 PMAQI
8th Jul 2025435 PMAQI
8th Jul 2025366 PMAQI
8th Jul 2025357 PMAQI
8th Jul 2025378 PMAQI
8th Jul 2025339 PMAQI
8th Jul 20253210 PMAQI
8th Jul 20253211 PMAQI
9th Jul 20253012 AMAQI
9th Jul 2025251 AMAQI
9th Jul 2025262 AMAQI
9th Jul 2025343 AMAQI
9th Jul 2025334 AMAQI
9th Jul 2025325 AMAQI

27°C20/34°C

9th Jul 2025266 AMAQI
9th Jul 2025287 AMAQI
9th Jul 2025308 AMAQI
9th Jul 2025319 AMAQI
9th Jul 20253610 AMAQI
9th Jul 20253311 AMAQI
9th Jul 20253412 PMAQI
9th Jul 2025331 PMAQI
9th Jul 2025342 PMAQI
9th Jul 2025343 PMAQI
9th Jul 2025384 PMAQI
9th Jul 2025405 PMAQI
9th Jul 2025446 PMAQI
9th Jul 2025347 PMAQI
9th Jul 2025358 PMAQI
9th Jul 2025399 PMAQI
9th Jul 20253810 PMAQI
9th Jul 20253811 PMAQI
10th Jul 20254012 AMAQI
10th Jul 2025431 AMAQI
10th Jul 2025402 AMAQI
10th Jul 2025383 AMAQI
10th Jul 2025394 AMAQI
10th Jul 2025405 AMAQI

25°C19/32°C

10th Jul 2025366 AMAQI
10th Jul 2025367 AMAQI
10th Jul 2025348 AMAQI
10th Jul 2025369 AMAQI
10th Jul 20253710 AMAQI
10th Jul 20254011 AMAQI
10th Jul 20253612 PMAQI
10th Jul 2025361 PMAQI
10th Jul 2025392 PMAQI
10th Jul 2025393 PMAQI
10th Jul 2025364 PMAQI
10th Jul 2025375 PMAQI
10th Jul 2025366 PMAQI
10th Jul 2025367 PMAQI
10th Jul 2025388 PMAQI
10th Jul 2025379 PMAQI
10th Jul 20253710 PMAQI
10th Jul 20253911 PMAQI
11th Jul 20254012 AMAQI
11th Jul 2025421 AMAQI
11th Jul 2025492 AMAQI
11th Jul 2025443 AMAQI
11th Jul 2025394 AMAQI
11th Jul 2025415 AMAQI

24°C19/29°C

11th Jul 2025356 AMAQI
11th Jul 2025397 AMAQI
11th Jul 2025468 AMAQI
11th Jul 2025419 AMAQI
11th Jul 20253610 AMAQI
11th Jul 20253811 AMAQI
11th Jul 20253912 PMAQI
11th Jul 2025411 PMAQI
11th Jul 2025422 PMAQI
11th Jul 2025443 PMAQI
11th Jul 2025444 PMAQI
11th Jul 2025445 PMAQI
11th Jul 2025446 PMAQI
11th Jul 2025437 PMAQI
11th Jul 2025428 PMAQI
11th Jul 2025449 PMAQI
11th Jul 20254410 PMAQI
11th Jul 20254611 PMAQI
12th Jul 20254612 AMAQI
12th Jul 2025481 AMAQI
12th Jul 2025522 AMAQI
12th Jul 2025513 AMAQI
12th Jul 2025444 AMAQI
12th Jul 2025415 AMAQI

25°C19/31°C

12th Jul 2025446 AMAQI
12th Jul 2025467 AMAQI
12th Jul 2025428 AMAQI
12th Jul 2025409 AMAQI
12th Jul 20253910 AMAQI
12th Jul 20254111 AMAQI
12th Jul 20254412 PMAQI
12th Jul 2025421 PMAQI
12th Jul 2025422 PMAQI
12th Jul 2025433 PMAQI
12th Jul 2025424 PMAQI
12th Jul 2025465 PMAQI
12th Jul 2025426 PMAQI
12th Jul 2025447 PMAQI
12th Jul 2025428 PMAQI
12th Jul 2025389 PMAQI
12th Jul 20253810 PMAQI
12th Jul 20253611 PMAQI
13th Jul 20253612 AMAQI
13th Jul 2025301 AMAQI
13th Jul 2025262 AMAQI
13th Jul 2025263 AMAQI
13th Jul 2025294 AMAQI
13th Jul 2025255 AMAQI

27°C21/32°C

13th Jul 2025256 AMAQI
13th Jul 2025297 AMAQI
13th Jul 2025328 AMAQI
13th Jul 2025319 AMAQI
13th Jul 20252910 AMAQI
13th Jul 20252611 AMAQI
13th Jul 20252512 PMAQI
13th Jul 2025291 PMAQI
13th Jul 2025302 PMAQI
13th Jul 2025313 PMAQI
13th Jul 2025304 PMAQI
13th Jul 2025305 PMAQI
13th Jul 2025306 PMAQI
13th Jul 2025307 PMAQI
13th Jul 2025318 PMAQI
13th Jul 2025329 PMAQI
13th Jul 20253010 PMAQI
13th Jul 20252911 PMAQI
14th Jul 20252812 AMAQI
14th Jul 2025231 AMAQI
14th Jul 2025212 AMAQI
14th Jul 2025183 AMAQI
14th Jul 2025184 AMAQI
14th Jul 2025225 AMAQI

26°C21/33°C

14th Jul 2025226 AMAQI
14th Jul 2025237 AMAQI
14th Jul 2025228 AMAQI
14th Jul 2025199 AMAQI
14th Jul 20252310 AMAQI
14th Jul 20252611 AMAQI
14th Jul 20252412 PMAQI
14th Jul 2025221 PMAQI
14th Jul 2025242 PMAQI
14th Jul 2025243 PMAQI
14th Jul 2025264 PMAQI
14th Jul 2025275 PMAQI
14th Jul 2025266 PMAQI
14th Jul 2025257 PMAQI
14th Jul 2025238 PMAQI
14th Jul 2025199 PMAQI
14th Jul 20252310 PMAQI
14th Jul 20252611 PMAQI
15th Jul 20252412 AMAQI
15th Jul 2025201 AMAQI
15th Jul 2025242 AMAQI
15th Jul 2025243 AMAQI
15th Jul 2025244 AMAQI
15th Jul 2025245 AMAQI

24°C22/29°C

15th Jul 2025246 AMAQI
15th Jul 2025357 AMAQI
15th Jul 2025328 AMAQI
15th Jul 2025289 AMAQI
15th Jul 20252610 AMAQI
15th Jul 20252511 AMAQI
15th Jul 20252512 PMAQI
15th Jul 2025271 PMAQI
15th Jul 2025262 PMAQI
15th Jul 2025283 PMAQI
15th Jul 2025274 PMAQI
15th Jul 2025265 PMAQI
15th Jul 2025246 PMAQI
15th Jul 2025267 PMAQI
15th Jul 2025258 PMAQI
15th Jul 2025259 PMAQI
15th Jul 20252710 PMAQI
15th Jul 20252611 PMAQI
16th Jul 20252712 AMAQI
16th Jul 2025261 AMAQI
16th Jul 2025262 AMAQI
16th Jul 2025293 AMAQI
16th Jul 2025294 AMAQI
16th Jul 2025295 AMAQI

26°C21/32°C

16th Jul 2025266 AMAQI
16th Jul 2025237 AMAQI
16th Jul 2025228 AMAQI
16th Jul 2025219 AMAQI
16th Jul 20252210 AMAQI
16th Jul 20252211 AMAQI
16th Jul 20252212 PMAQI
16th Jul 2025201 PMAQI
16th Jul 2025212 PMAQI
16th Jul 2025243 PMAQI
16th Jul 2025314 PMAQI
16th Jul 2025345 PMAQI
16th Jul 2025326 PMAQI
16th Jul 2025267 PMAQI
16th Jul 2025278 PMAQI
16th Jul 2025239 PMAQI
16th Jul 20252210 PMAQI
16th Jul 20252211 PMAQI
17th Jul 20252412 AMAQI
17th Jul 2025201 AMAQI
17th Jul 2025222 AMAQI
17th Jul 2025193 AMAQI
17th Jul 2025164 AMAQI
17th Jul 2025165 AMAQI

24°C21/30°C

17th Jul 2025166 AMAQI
17th Jul 2025187 AMAQI
17th Jul 2025208 AMAQI
17th Jul 2025189 AMAQI
17th Jul 20251910 AMAQI
17th Jul 20252011 AMAQI
17th Jul 20252112 PMAQI
17th Jul 2025221 PMAQI
17th Jul 2025222 PMAQI
17th Jul 2025203 PMAQI
17th Jul 2025204 PMAQI
17th Jul 2025255 PMAQI
17th Jul 2025246 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025238 PMAQI
17th Jul 2025289 PMAQI
17th Jul 20252810 PMAQI
17th Jul 20252711 PMAQI
18th Jul 20252612 AMAQI
18th Jul 2025261 AMAQI
18th Jul 2025252 AMAQI
18th Jul 2025253 AMAQI
18th Jul 2025294 AMAQI
18th Jul 2025255 AMAQI

27°C21/35°C

18th Jul 2025206 AMAQI
18th Jul 2025237 AMAQI
18th Jul 2025218 AMAQI
18th Jul 2025209 AMAQI
18th Jul 20252010 AMAQI
18th Jul 20252011 AMAQI
18th Jul 20252012 PMAQI
18th Jul 2025221 PMAQI
18th Jul 2025232 PMAQI
18th Jul 2025273 PMAQI
18th Jul 2025274 PMAQI
18th Jul 2025265 PMAQI
18th Jul 2025316 PMAQI
18th Jul 2025287 PMAQI
18th Jul 2025308 PMAQI
18th Jul 2025329 PMAQI
18th Jul 20253110 PMAQI
18th Jul 20253011 PMAQI
19th Jul 20252712 AMAQI
19th Jul 2025241 AMAQI
19th Jul 2025312 AMAQI
19th Jul 2025303 AMAQI
19th Jul 2025284 AMAQI
19th Jul 2025285 AMAQI

25°C22/31°C

19th Jul 2025266 AMAQI
19th Jul 2025267 AMAQI
19th Jul 2025268 AMAQI
19th Jul 2025309 AMAQI
19th Jul 20253510 AMAQI
19th Jul 20253811 AMAQI
19th Jul 20253712 PMAQI
19th Jul 2025301 PMAQI
19th Jul 2025272 PMAQI
19th Jul 2025283 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025315 PMAQI
19th Jul 2025296 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025308 PMAQI
19th Jul 2025299 PMAQI
19th Jul 20252810 PMAQI
19th Jul 20253211 PMAQI
20th Jul 20253112 AMAQI
20th Jul 2025321 AMAQI
20th Jul 2025312 AMAQI
20th Jul 2025263 AMAQI
20th Jul 2025314 AMAQI
20th Jul 2025335 AMAQI

25°C22/29°C

20th Jul 2025286 AMAQI
20th Jul 2025307 AMAQI
20th Jul 2025338 AMAQI
20th Jul 2025409 AMAQI
20th Jul 20253710 AMAQI
20th Jul 20252911 AMAQI
20th Jul 20252712 PMAQI
20th Jul 2025271 PMAQI
20th Jul 2025292 PMAQI
20th Jul 2025273 PMAQI
20th Jul 2025244 PMAQI
20th Jul 2025255 PMAQI
20th Jul 2025236 PMAQI
20th Jul 2025287 PMAQI
20th Jul 2025298 PMAQI
20th Jul 2025249 PMAQI
20th Jul 20252610 PMAQI
20th Jul 20252611 PMAQI
21st Jul 20252612 AMAQI
21st Jul 2025241 AMAQI
21st Jul 2025222 AMAQI
21st Jul 2025203 AMAQI
21st Jul 2025194 AMAQI
21st Jul 2025215 AMAQI

26°C22/33°C

21st Jul 2025236 AMAQI
21st Jul 2025257 AMAQI
21st Jul 2025288 AMAQI
21st Jul 2025279 AMAQI
21st Jul 20252510 AMAQI
21st Jul 20252511 AMAQI
21st Jul 20252612 PMAQI
21st Jul 2025301 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025293 PMAQI
21st Jul 2025314 PMAQI
21st Jul 2025305 PMAQI
21st Jul 2025336 PMAQI
21st Jul 2025287 PMAQI
21st Jul 2025318 PMAQI
21st Jul 2025419 PMAQI
21st Jul 20254110 PMAQI
21st Jul 20254311 PMAQI
22nd Jul 20254412 AMAQI
22nd Jul 2025521 AMAQI
22nd Jul 2025532 AMAQI
22nd Jul 2025533 AMAQI
22nd Jul 2025564 AMAQI
22nd Jul 2025565 AMAQI

24°C17/28°C

22nd Jul 2025586 AMAQI
22nd Jul 2025587 AMAQI
22nd Jul 2025578 AMAQI
22nd Jul 2025539 AMAQI
22nd Jul 20254910 AMAQI
22nd Jul 20254611 AMAQI
22nd Jul 20254512 PMAQI
22nd Jul 2025561 PMAQI
22nd Jul 2025542 PMAQI
22nd Jul 2025573 PMAQI
22nd Jul 2025544 PMAQI
22nd Jul 2025525 PMAQI
22nd Jul 2025526 PMAQI
22nd Jul 2025537 PMAQI
22nd Jul 2025538 PMAQI
22nd Jul 2025549 PMAQI
22nd Jul 20255610 PMAQI
22nd Jul 20255611 PMAQI
23rd Jul 20255612 AMAQI
23rd Jul 2025581 AMAQI
23rd Jul 2025562 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025544 AMAQI
23rd Jul 2025515 AMAQI

22°C15/29°C

23rd Jul 2025566 AMAQI
23rd Jul 2025577 AMAQI
23rd Jul 2025548 AMAQI
23rd Jul 2025549 AMAQI
23rd Jul 20255210 AMAQI
23rd Jul 20255211 AMAQI
23rd Jul 20255212 PMAQI
23rd Jul 2025521 PMAQI
23rd Jul 2025542 PMAQI
23rd Jul 2025543 PMAQI
23rd Jul 2025544 PMAQI
23rd Jul 2025545 PMAQI
23rd Jul 2025546 PMAQI
23rd Jul 2025557 PMAQI
23rd Jul 2025558 PMAQI
23rd Jul 2025569 PMAQI
23rd Jul 20255610 PMAQI
23rd Jul 20255611 PMAQI
24th Jul 20255512 AMAQI
24th Jul 2025551 AMAQI
24th Jul 2025532 AMAQI
24th Jul 2025483 AMAQI
24th Jul 2025434 AMAQI
24th Jul 2025385 AMAQI

24°C21/28°C

24th Jul 2025466 AMAQI
24th Jul 2025457 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025459 AMAQI
24th Jul 20254810 AMAQI
24th Jul 20254811 AMAQI
24th Jul 20254612 PMAQI
24th Jul 2025481 PMAQI
24th Jul 2025522 PMAQI
24th Jul 2025503 PMAQI
24th Jul 2025504 PMAQI
24th Jul 2025465 PMAQI
24th Jul 2025486 PMAQI
24th Jul 2025507 PMAQI
24th Jul 2025498 PMAQI
24th Jul 2025509 PMAQI
24th Jul 20254810 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20254612 AMAQI
25th Jul 2025451 AMAQI
25th Jul 2025502 AMAQI
25th Jul 2025513 AMAQI
25th Jul 2025504 AMAQI
25th Jul 2025465 AMAQI

26°C20/33°C

25th Jul 2025476 AMAQI
25th Jul 2025497 AMAQI
25th Jul 2025508 AMAQI
25th Jul 2025529 AMAQI
25th Jul 20255110 AMAQI
25th Jul 20254711 AMAQI
25th Jul 20254812 PMAQI
25th Jul 2025471 PMAQI
25th Jul 2025522 PMAQI
25th Jul 2025523 PMAQI
25th Jul 2025524 PMAQI
25th Jul 2025525 PMAQI
25th Jul 2025536 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025528 PMAQI
25th Jul 2025499 PMAQI
25th Jul 20254910 PMAQI
25th Jul 20254811 PMAQI
26th Jul 20254712 AMAQI
26th Jul 2025411 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025283 AMAQI
26th Jul 2025324 AMAQI
26th Jul 2025335 AMAQI

27°C20/34°C

26th Jul 2025376 AMAQI
26th Jul 2025357 AMAQI
26th Jul 2025348 AMAQI
26th Jul 2025409 AMAQI
26th Jul 20254110 AMAQI
26th Jul 20253811 AMAQI
26th Jul 20253412 PMAQI
26th Jul 2025311 PMAQI
26th Jul 2025332 PMAQI
26th Jul 2025343 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025385 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025407 PMAQI
26th Jul 2025408 PMAQI
26th Jul 2025429 PMAQI
26th Jul 20254210 PMAQI
26th Jul 20254011 PMAQI
27th Jul 20253812 AMAQI
27th Jul 2025391 AMAQI
27th Jul 2025402 AMAQI
27th Jul 2025343 AMAQI
27th Jul 2025394 AMAQI
27th Jul 2025395 AMAQI

27°C21/35°C

27th Jul 2025356 AMAQI
27th Jul 2025397 AMAQI
27th Jul 2025348 AMAQI
27th Jul 2025319 AMAQI
27th Jul 20253710 AMAQI
27th Jul 20253511 AMAQI
27th Jul 20253812 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025342 PMAQI
27th Jul 2025383 PMAQI
27th Jul 2025404 PMAQI
27th Jul 2025405 PMAQI
27th Jul 2025376 PMAQI
27th Jul 2025377 PMAQI
27th Jul 2025378 PMAQI
27th Jul 2025339 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253611 PMAQI
28th Jul 20253112 AMAQI
28th Jul 2025211 AMAQI
28th Jul 2025192 AMAQI
28th Jul 2025203 AMAQI
28th Jul 2025194 AMAQI
28th Jul 2025195 AMAQI

25°C22/30°C

28th Jul 2025206 AMAQI
28th Jul 2025207 AMAQI
28th Jul 2025228 AMAQI
28th Jul 2025279 AMAQI
28th Jul 20252610 AMAQI
28th Jul 20252611 AMAQI
28th Jul 20252612 PMAQI
28th Jul 2025281 PMAQI
28th Jul 2025322 PMAQI
28th Jul 2025333 PMAQI
28th Jul 2025334 PMAQI
28th Jul 2025325 PMAQI
28th Jul 2025306 PMAQI
28th Jul 2025267 PMAQI
28th Jul 2025268 PMAQI
28th Jul 2025359 PMAQI
28th Jul 20253510 PMAQI
28th Jul 20253611 PMAQI
29th Jul 20253712 AMAQI
29th Jul 2025441 AMAQI
29th Jul 2025432 AMAQI
29th Jul 2025403 AMAQI
29th Jul 2025374 AMAQI
29th Jul 2025425 AMAQI

27°C20/33°C

29th Jul 2025426 AMAQI
29th Jul 2025377 AMAQI
29th Jul 2025368 AMAQI
29th Jul 2025329 AMAQI
29th Jul 20253410 AMAQI
29th Jul 20254711 AMAQI
29th Jul 20254412 PMAQI
29th Jul 2025441 PMAQI
29th Jul 2025452 PMAQI
29th Jul 2025463 PMAQI
29th Jul 2025464 PMAQI
29th Jul 2025475 PMAQI
29th Jul 2025466 PMAQI
29th Jul 2025467 PMAQI
29th Jul 2025448 PMAQI
29th Jul 2025449 PMAQI
29th Jul 20254610 PMAQI
29th Jul 20254511 PMAQI
30th Jul 20254412 AMAQI
30th Jul 2025451 AMAQI
30th Jul 2025422 AMAQI
30th Jul 2025413 AMAQI
30th Jul 2025414 AMAQI
30th Jul 2025465 AMAQI

28°C20/36°C

30th Jul 2025426 AMAQI
30th Jul 2025407 AMAQI
30th Jul 2025388 AMAQI
30th Jul 2025379 AMAQI
30th Jul 20253610 AMAQI
30th Jul 20253511 AMAQI
30th Jul 20253912 PMAQI
30th Jul 2025441 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 2025499 PMAQI
30th Jul 20255010 PMAQI
30th Jul 20255011 PMAQI
31st Jul 20254512 AMAQI
31st Jul 2025411 AMAQI
31st Jul 2025402 AMAQI
31st Jul 2025323 AMAQI
31st Jul 2025304 AMAQI
31st Jul 2025285 AMAQI

28°C22/35°C

31st Jul 2025366 AMAQI
31st Jul 2025507 AMAQI
31st Jul 2025508 AMAQI
31st Jul 2025529 AMAQI
31st Jul 20255210 AMAQI
31st Jul 20255011 AMAQI
31st Jul 20254812 PMAQI
31st Jul 2025511 PMAQI
31st Jul 2025502 PMAQI
31st Jul 2025443 PMAQI
31st Jul 2025444 PMAQI
31st Jul 2025485 PMAQI
31st Jul 2025516 PMAQI
31st Jul 2025447 PMAQI
31st Jul 2025458 PMAQI
31st Jul 2025489 PMAQI
31st Jul 20255010 PMAQI
31st Jul 20255211 PMAQI
1st Aug 20255212 AMAQI
1st Aug 2025501 AMAQI
1st Aug 2025432 AMAQI
1st Aug 2025343 AMAQI
1st Aug 2025344 AMAQI
1st Aug 2025445 AMAQI

25°C18/31°C

1st Aug 2025466 AMAQI
1st Aug 2025447 AMAQI
1st Aug 2025448 AMAQI
1st Aug 2025479 AMAQI
1st Aug 20254310 AMAQI
1st Aug 20254411 AMAQI
1st Aug 20254012 PMAQI
1st Aug 2025401 PMAQI
1st Aug 2025342 PMAQI
1st Aug 2025313 PMAQI
1st Aug 2025304 PMAQI
1st Aug 2025295 PMAQI
1st Aug 2025326 PMAQI
1st Aug 2025427 PMAQI
1st Aug 2025338 PMAQI
1st Aug 2025289 PMAQI
1st Aug 20252810 PMAQI
1st Aug 20252711 PMAQI
2nd Aug 20252612 AMAQI
2nd Aug 2025291 AMAQI
2nd Aug 2025272 AMAQI
2nd Aug 2025303 AMAQI
2nd Aug 2025334 AMAQI
2nd Aug 2025355 AMAQI

19°C17/21°C

2nd Aug 2025416 AMAQI
2nd Aug 2025377 AMAQI
2nd Aug 2025298 AMAQI
2nd Aug 2025299 AMAQI
2nd Aug 20252910 AMAQI
2nd Aug 20252911 AMAQI
2nd Aug 20253012 PMAQI
2nd Aug 2025301 PMAQI
2nd Aug 2025302 PMAQI
2nd Aug 2025283 PMAQI
2nd Aug 2025284 PMAQI
2nd Aug 2025285 PMAQI
2nd Aug 2025296 PMAQI
2nd Aug 2025267 PMAQI
2nd Aug 2025308 PMAQI
2nd Aug 2025339 PMAQI
2nd Aug 20253610 PMAQI
2nd Aug 20254011 PMAQI
3rd Aug 20254012 AMAQI
3rd Aug 2025381 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025403 AMAQI
3rd Aug 2025394 AMAQI
3rd Aug 2025385 AMAQI

19°C12/25°C

3rd Aug 2025356 AMAQI
3rd Aug 2025377 AMAQI
3rd Aug 2025368 AMAQI
3rd Aug 2025359 AMAQI
3rd Aug 20253610 AMAQI
3rd Aug 20253611 AMAQI
3rd Aug 20253912 PMAQI
3rd Aug 2025351 PMAQI
3rd Aug 2025362 PMAQI
3rd Aug 2025333 PMAQI
3rd Aug 2025354 PMAQI
3rd Aug 2025385 PMAQI
3rd Aug 2025406 PMAQI
3rd Aug 2025377 PMAQI
3rd Aug 2025388 PMAQI
3rd Aug 2025379 PMAQI
3rd Aug 20253610 PMAQI
3rd Aug 20253811 PMAQI
4th Aug 20253812 AMAQI
4th Aug 2025391 AMAQI
4th Aug 2025352 AMAQI
4th Aug 2025383 AMAQI
4th Aug 2025404 AMAQI
4th Aug 2025405 AMAQI

19°C9/28°C

4th Aug 2025446 AMAQI
6 AM
4th Aug 2025417 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025449 AMAQI
4th Aug 20254810 AMAQI
4th Aug 20254711 AMAQI
4th Aug 20254912 PMAQI
4th Aug 2025531 PMAQI
1 PM
4th Aug 2025532 PMAQI
4th Aug 2025573 PMAQI
4th Aug 2025584 PMAQI
4th Aug 2025615 PMAQI
4th Aug 2025596 PMAQI
4th Aug 2025507 PMAQI
4th Aug 2025568 PMAQI
8 PM
4th Aug 2025639 PMAQI
4th Aug 20256010 PMAQI
4th Aug 20256211 PMAQI
1 AM
5 AM

21°C11/30°C

Day time
Avg. Highest Time
6 AM - 8 PM

38AQI

15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM

38AQI

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. 38), while the lowest AQI was between 6 AM to 8 PM (Avg. 38).
Night time
Avg. Highest Time
9 PM - 11 PM

39AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
12 AM - 5 AM

37AQI

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. 39), while the lowest AQI was between 12 AM to 5 AM (Avg. 37).

2025 Days Vs Air Quality

Hagerstown, Halfway, Maryland, United States

2025

90%

194

10%

21

Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)

Good
194 Days
Moderate
21 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 90%

Health Risk Level:

Very Low

In 2025, 90% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Hagerstown, Halfway, Maryland, 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
20AQI
2nd January 2025
19AQI
3rd January 2025
26AQI
4th January 2025
20AQI
5th January 2025
28AQI
6th January 2025
35AQI
7th January 2025
19AQI
8th January 2025
20AQI
9th January 2025
20AQI
10th January 2025
35AQI
11th January 2025
49AQI
12th January 2025
47AQI
13th January 2025
35AQI
14th January 2025
23AQI
15th January 2025
28AQI
16th January 2025
41AQI
17th January 2025
34AQI
18th January 2025
44AQI
19th January 2025
41AQI
20th January 2025
23AQI
21st January 2025
37AQI
22nd January 2025
44AQI
23rd January 2025
55AQI
24th January 2025
46AQI
25th January 2025
51AQI
26th January 2025
30AQI
27th January 2025
28AQI
28th January 2025
23AQI
29th January 2025
25AQI
30th January 2025
26AQI
31st January 2025
33AQI
1st February 2025
22AQI
2nd February 2025
22AQI
3rd February 2025
42AQI
4th February 2025
31AQI
5th February 2025
24AQI
6th February 2025
27AQI
7th February 2025
25AQI
8th February 2025
30AQI
9th February 2025
26AQI
10th February 2025
32AQI
11th February 2025
40AQI
12th February 2025
53AQI
13th February 2025
22AQI
14th February 2025
23AQI
15th February 2025
23AQI
16th February 2025
21AQI
17th February 2025
21AQI
18th February 2025
23AQI
19th February 2025
27AQI
20th February 2025
28AQI
21st February 2025
26AQI
22nd February 2025
40AQI
23rd February 2025
37AQI
24th February 2025
43AQI
25th February 2025
33AQI
26th February 2025
39AQI
27th February 2025
40AQI
28th February 2025
26AQI
1st March 2025
28AQI
2nd March 2025
28AQI
3rd March 2025
33AQI
4th March 2025
37AQI
5th March 2025
28AQI
6th March 2025
24AQI
7th March 2025
30AQI
8th March 2025
30AQI
9th March 2025
29AQI
10th March 2025
32AQI
11th March 2025
37AQI
12th March 2025
32AQI
13th March 2025
40AQI
14th March 2025
56AQI
15th March 2025
47AQI
16th March 2025
29AQI
17th March 2025
20AQI
18th March 2025
21AQI
19th March 2025
30AQI
20th March 2025
28AQI
21st March 2025
17AQI
22nd March 2025
21AQI
23rd March 2025
21AQI
24th March 2025
23AQI
25th March 2025
20AQI
26th March 2025
25AQI
27th March 2025
28AQI
28th March 2025
35AQI
29th March 2025
54AQI
30th March 2025
43AQI
31st March 2025
28AQI
1st April 2025
24AQI
2nd April 2025
27AQI
3rd April 2025
24AQI
4th April 2025
27AQI
5th April 2025
40AQI
6th April 2025
32AQI
7th April 2025
21AQI
8th April 2025
24AQI
9th April 2025
27AQI
10th April 2025
28AQI
11th April 2025
32AQI
12th April 2025
26AQI
13th April 2025
24AQI
14th April 2025
36AQI
15th April 2025
27AQI
16th April 2025
19AQI
17th April 2025
24AQI
18th April 2025
35AQI
19th April 2025
58AQI
20th April 2025
29AQI
21st April 2025
32AQI
22nd April 2025
32AQI
23rd April 2025
29AQI
24th April 2025
47AQI
25th April 2025
42AQI
26th April 2025
28AQI
27th April 2025
17AQI
28th April 2025
20AQI
29th April 2025
36AQI
30th April 2025
28AQI
1st May 2025
34AQI
2nd May 2025
31AQI
3rd May 2025
29AQI
4th May 2025
20AQI
5th May 2025
23AQI
6th May 2025
18AQI
7th May 2025
17AQI
8th May 2025
25AQI
9th May 2025
19AQI
10th May 2025
21AQI
11th May 2025
37AQI
12th May 2025
39AQI
13th May 2025
18AQI
14th May 2025
18AQI
15th May 2025
25AQI
16th May 2025
43AQI
17th May 2025
29AQI
18th May 2025
19AQI
19th May 2025
23AQI
20th May 2025
26AQI
21st May 2025
19AQI
22nd May 2025
12AQI
23rd May 2025
16AQI
24th May 2025
19AQI
25th May 2025
18AQI
26th May 2025
24AQI
27th May 2025
31AQI
28th May 2025
18AQI
29th May 2025
26AQI
30th May 2025
27AQI
31st May 2025
30AQI
1st June 2025
22AQI
2nd June 2025
27AQI
3rd June 2025
30AQI
4th June 2025
51AQI
5th June 2025
63AQI
6th June 2025
58AQI
7th June 2025
30AQI
8th June 2025
54AQI
9th June 2025
45AQI
10th June 2025
41AQI
11th June 2025
49AQI
12th June 2025
57AQI
13th June 2025
69AQI
14th June 2025
67AQI
15th June 2025
43AQI
16th June 2025
19AQI
17th June 2025
18AQI
18th June 2025
17AQI
19th June 2025
20AQI
20th June 2025
27AQI
21st June 2025
47AQI
22nd June 2025
50AQI
23rd June 2025
51AQI
24th June 2025
56AQI
25th June 2025
55AQI
26th June 2025
39AQI
27th June 2025
39AQI
28th June 2025
23AQI
29th June 2025
28AQI
30th June 2025
32AQI
1st July 2025
30AQI
2nd July 2025
31AQI
3rd July 2025
41AQI
4th July 2025
55AQI
5th July 2025
67AQI
6th July 2025
56AQI
7th July 2025
34AQI
8th July 2025
36AQI
9th July 2025
34AQI
10th July 2025
38AQI
11th July 2025
42AQI
12th July 2025
43AQI
13th July 2025
29AQI
14th July 2025
23AQI
15th July 2025
25AQI
16th July 2025
26AQI
17th July 2025
21AQI
18th July 2025
26AQI
19th July 2025
29AQI
20th July 2025
29AQI
21st July 2025
28AQI
22nd July 2025
53AQI
23rd July 2025
54AQI
24th July 2025
48AQI
25th July 2025
49AQI
26th July 2025
37AQI
27th July 2025
37AQI
28th July 2025
26AQI
29th July 2025
42AQI
30th July 2025
44AQI
31st July 2025
44AQI
1st August 2025
38AQI
2nd August 2025
31AQI
3rd August 2025
38AQI

32AQI

30AQI

31AQI

30AQI

24AQI

41AQI

38AQI

36AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202532AQI

29
2
27
1
29
2
29
1
31
20
10
26
5
3
194
21

Highest AQI recorded in

June

41AQI

Lowest AQI recorded in

May

24AQI

202430AQI

27
4
27
2
31
30
31
29
1
31
31
30
31
30
28
3
356
10

Highest AQI recorded in

June

33AQI

Lowest AQI recorded in

November

23AQI

202333AQI

29
2
27
1
31
29
1
28
3
14
11
4
1
28
3
30
1
30
31
26
2
27
4
330
28
4
1

Highest AQI recorded in

June

56AQI

Lowest AQI recorded in

October

25AQI

202231AQI

24
5
21
31
16
1
31
29
22
2
29
31
26
1
27
2
289
9

Highest AQI recorded in

June

38AQI

Lowest AQI recorded in

November

24AQI

202136AQI

22
8
15
13
27
4
30
30
1
29
1
21
10
31
28
2
30
29
1
27
2
319
42

Highest AQI recorded in

February

47AQI

Lowest AQI recorded in

October

30AQI

202032AQI

13
19
2
16
28
30
1
30
1
30
31
28
2
23
8
248
14

Highest AQI recorded in

December

38AQI

Lowest AQI recorded in

October

25AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2021(Avg.)
36AQI
Least Polluted Year Recorded
2024(Avg.)
30AQI

Hagerstown's annual 2025 AQI (32) shows an average percentage change of 0.1% (worsened AQI) compared to previous years: 2020 (32), 2021 (36), 2022 (31), 2023 (33), 2024 (30).