Frederick Co. Public School, Winchester, Virginia, 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
Frederick Co. Public School, Winchester, Virginia, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Aug 2023
73AQILowest AQI recorded on
8th Aug 2024
12AQISame Day Analysis (6th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 70 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Frederick Co. Public School, Winchester, Virginia, United States
AQI
Day
Night
.
6 AM6th Aug 2025
8 PM
5 AM7th Aug 2025
Day time
Avg. Highest Time
8AM6th Aug
74AQI
Avg. Lowest Time
8PM6th Aug
67AQI
Night time
Avg. Highest Time
3AM7th Aug
89AQI
Avg. Lowest Time
10PM6th Aug
60AQI
In the last 24 hours,
Frederick Co. Public School's AQI reached its highest point of 89 at 3 AM during the Night, while the lowest point, 60, was recorded at 10 PM during the Night between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Frederick Co. Public School, Winchester, Virginia, 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 - 07th07th
Day
Night
8th Jul 2025506 AMAQI
8th Jul 2025537 AMAQI
8th Jul 2025528 AMAQI
8th Jul 2025529 AMAQI
8th Jul 20255310 AMAQI
8th Jul 20255411 AMAQI
8th Jul 20255412 PMAQI
8th Jul 2025531 PMAQI
8th Jul 2025532 PMAQI
8th Jul 2025533 PMAQI
8th Jul 2025524 PMAQI
8th Jul 2025525 PMAQI
8th Jul 2025486 PMAQI
8th Jul 2025497 PMAQI
8th Jul 2025508 PMAQI
8th Jul 2025479 PMAQI
8th Jul 20254610 PMAQI
8th Jul 20254411 PMAQI
9th Jul 20254212 AMAQI
9th Jul 2025341 AMAQI
9th Jul 2025322 AMAQI
9th Jul 2025353 AMAQI
9th Jul 2025334 AMAQI
9th Jul 2025335 AMAQI
--°C/°C
9th Jul 2025346 AMAQI
9th Jul 2025347 AMAQI
9th Jul 2025388 AMAQI
9th Jul 2025389 AMAQI
9th Jul 20253810 AMAQI
9th Jul 20254111 AMAQI
9th Jul 20254412 PMAQI
9th Jul 2025461 PMAQI
9th Jul 2025442 PMAQI
9th Jul 2025433 PMAQI
9th Jul 2025444 PMAQI
9th Jul 2025425 PMAQI
9th Jul 2025396 PMAQI
9th Jul 2025367 PMAQI
9th Jul 2025368 PMAQI
9th Jul 2025379 PMAQI
9th Jul 20253810 PMAQI
9th Jul 20253911 PMAQI
10th Jul 20254112 AMAQI
10th Jul 2025381 AMAQI
10th Jul 2025382 AMAQI
10th Jul 2025403 AMAQI
10th Jul 2025424 AMAQI
10th Jul 2025465 AMAQI
24°C19/33°C
10th Jul 2025416 AMAQI
10th Jul 2025437 AMAQI
10th Jul 2025418 AMAQI
10th Jul 2025429 AMAQI
10th Jul 20254110 AMAQI
10th Jul 20254211 AMAQI
10th Jul 20254212 PMAQI
10th Jul 2025451 PMAQI
10th Jul 2025462 PMAQI
10th Jul 2025453 PMAQI
10th Jul 2025434 PMAQI
10th Jul 2025445 PMAQI
10th Jul 2025436 PMAQI
10th Jul 2025447 PMAQI
10th Jul 2025418 PMAQI
10th Jul 2025419 PMAQI
10th Jul 20254210 PMAQI
10th Jul 20254211 PMAQI
11th Jul 20254312 AMAQI
11th Jul 2025501 AMAQI
11th Jul 2025492 AMAQI
11th Jul 2025473 AMAQI
11th Jul 2025474 AMAQI
11th Jul 2025465 AMAQI
24°C20/29°C
11th Jul 2025496 AMAQI
11th Jul 2025507 AMAQI
11th Jul 2025528 AMAQI
11th Jul 2025539 AMAQI
11th Jul 20254810 AMAQI
11th Jul 20254611 AMAQI
11th Jul 20254712 PMAQI
11th Jul 2025471 PMAQI
11th Jul 2025482 PMAQI
11th Jul 2025493 PMAQI
11th Jul 2025504 PMAQI
11th Jul 2025485 PMAQI
11th Jul 2025496 PMAQI
11th Jul 2025497 PMAQI
11th Jul 2025488 PMAQI
11th Jul 2025489 PMAQI
11th Jul 20254810 PMAQI
11th Jul 20254811 PMAQI
12th Jul 20254512 AMAQI
12th Jul 2025391 AMAQI
12th Jul 2025402 AMAQI
12th Jul 2025383 AMAQI
12th Jul 2025374 AMAQI
12th Jul 2025385 AMAQI
26°C19/33°C
12th Jul 2025396 AMAQI
12th Jul 2025397 AMAQI
12th Jul 2025408 AMAQI
12th Jul 2025409 AMAQI
12th Jul 20253910 AMAQI
12th Jul 20254111 AMAQI
12th Jul 20253912 PMAQI
12th Jul 2025401 PMAQI
12th Jul 2025412 PMAQI
12th Jul 2025423 PMAQI
12th Jul 2025424 PMAQI
12th Jul 2025425 PMAQI
12th Jul 2025426 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025418 PMAQI
12th Jul 2025409 PMAQI
12th Jul 20254010 PMAQI
12th Jul 20254011 PMAQI
13th Jul 20254012 AMAQI
13th Jul 2025381 AMAQI
13th Jul 2025372 AMAQI
13th Jul 2025393 AMAQI
13th Jul 2025394 AMAQI
13th Jul 2025355 AMAQI
27°C20/33°C
13th Jul 2025346 AMAQI
13th Jul 2025367 AMAQI
13th Jul 2025348 AMAQI
13th Jul 2025329 AMAQI
13th Jul 20253210 AMAQI
13th Jul 20253011 AMAQI
13th Jul 20253412 PMAQI
13th Jul 2025351 PMAQI
13th Jul 2025372 PMAQI
13th Jul 2025383 PMAQI
13th Jul 2025384 PMAQI
13th Jul 2025385 PMAQI
13th Jul 2025376 PMAQI
13th Jul 2025377 PMAQI
13th Jul 2025368 PMAQI
13th Jul 2025369 PMAQI
13th Jul 20253710 PMAQI
13th Jul 20253811 PMAQI
14th Jul 20253712 AMAQI
14th Jul 2025351 AMAQI
14th Jul 2025342 AMAQI
14th Jul 2025323 AMAQI
14th Jul 2025344 AMAQI
14th Jul 2025335 AMAQI
26°C20/31°C
14th Jul 2025336 AMAQI
14th Jul 2025347 AMAQI
14th Jul 2025338 AMAQI
14th Jul 2025349 AMAQI
14th Jul 20253410 AMAQI
14th Jul 20253611 AMAQI
14th Jul 20253612 PMAQI
14th Jul 2025351 PMAQI
14th Jul 2025362 PMAQI
14th Jul 2025363 PMAQI
14th Jul 2025364 PMAQI
14th Jul 2025365 PMAQI
14th Jul 2025366 PMAQI
14th Jul 2025357 PMAQI
14th Jul 2025348 PMAQI
14th Jul 2025339 PMAQI
14th Jul 20253210 PMAQI
14th Jul 20253311 PMAQI
15th Jul 20253312 AMAQI
15th Jul 2025321 AMAQI
15th Jul 2025382 AMAQI
15th Jul 2025323 AMAQI
15th Jul 2025324 AMAQI
15th Jul 2025315 AMAQI
25°C20/29°C
15th Jul 2025286 AMAQI
15th Jul 2025307 AMAQI
15th Jul 2025318 AMAQI
15th Jul 2025329 AMAQI
15th Jul 20253110 AMAQI
15th Jul 20253211 AMAQI
15th Jul 20253312 PMAQI
15th Jul 2025361 PMAQI
15th Jul 2025382 PMAQI
15th Jul 2025363 PMAQI
15th Jul 2025374 PMAQI
15th Jul 2025365 PMAQI
15th Jul 2025356 PMAQI
15th Jul 2025347 PMAQI
15th Jul 2025348 PMAQI
15th Jul 2025349 PMAQI
15th Jul 20253310 PMAQI
15th Jul 20253311 PMAQI
16th Jul 20253412 AMAQI
16th Jul 2025351 AMAQI
16th Jul 2025392 AMAQI
16th Jul 2025403 AMAQI
16th Jul 2025384 AMAQI
16th Jul 2025415 AMAQI
26°C22/32°C
16th Jul 2025386 AMAQI
16th Jul 2025397 AMAQI
16th Jul 2025378 AMAQI
16th Jul 2025369 AMAQI
16th Jul 20253410 AMAQI
16th Jul 20253411 AMAQI
16th Jul 20253512 PMAQI
16th Jul 2025331 PMAQI
16th Jul 2025342 PMAQI
16th Jul 2025373 PMAQI
16th Jul 2025364 PMAQI
16th Jul 2025375 PMAQI
16th Jul 2025366 PMAQI
16th Jul 2025367 PMAQI
16th Jul 2025388 PMAQI
16th Jul 2025369 PMAQI
16th Jul 20253310 PMAQI
16th Jul 20253411 PMAQI
17th Jul 20253212 AMAQI
17th Jul 2025321 AMAQI
17th Jul 2025262 AMAQI
17th Jul 2025283 AMAQI
17th Jul 2025304 AMAQI
17th Jul 2025305 AMAQI
25°C20/30°C
17th Jul 2025286 AMAQI
17th Jul 2025287 AMAQI
17th Jul 2025268 AMAQI
17th Jul 2025279 AMAQI
17th Jul 20252710 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20252912 PMAQI
17th Jul 2025291 PMAQI
17th Jul 2025282 PMAQI
17th Jul 2025303 PMAQI
17th Jul 2025304 PMAQI
17th Jul 2025295 PMAQI
17th Jul 2025306 PMAQI
17th Jul 2025287 PMAQI
17th Jul 2025308 PMAQI
17th Jul 2025319 PMAQI
17th Jul 20253010 PMAQI
17th Jul 20253011 PMAQI
18th Jul 20253012 AMAQI
18th Jul 2025261 AMAQI
18th Jul 2025262 AMAQI
18th Jul 2025253 AMAQI
18th Jul 2025254 AMAQI
18th Jul 2025265 AMAQI
27°C20/36°C
18th Jul 2025286 AMAQI
18th Jul 2025297 AMAQI
18th Jul 2025288 AMAQI
18th Jul 2025279 AMAQI
18th Jul 20252610 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252712 PMAQI
18th Jul 2025281 PMAQI
18th Jul 2025282 PMAQI
18th Jul 2025283 PMAQI
18th Jul 2025294 PMAQI
18th Jul 2025305 PMAQI
18th Jul 2025306 PMAQI
18th Jul 2025287 PMAQI
18th Jul 2025298 PMAQI
18th Jul 2025319 PMAQI
18th Jul 20253110 PMAQI
18th Jul 20253211 PMAQI
19th Jul 20253312 AMAQI
19th Jul 2025371 AMAQI
19th Jul 2025422 AMAQI
19th Jul 2025423 AMAQI
19th Jul 2025384 AMAQI
19th Jul 2025385 AMAQI
25°C22/28°C
19th Jul 2025386 AMAQI
19th Jul 2025407 AMAQI
19th Jul 2025378 AMAQI
19th Jul 2025399 AMAQI
19th Jul 20253910 AMAQI
19th Jul 20253811 AMAQI
19th Jul 20253712 PMAQI
19th Jul 2025361 PMAQI
19th Jul 2025362 PMAQI
19th Jul 2025373 PMAQI
19th Jul 2025394 PMAQI
19th Jul 2025385 PMAQI
19th Jul 2025376 PMAQI
19th Jul 2025377 PMAQI
19th Jul 2025398 PMAQI
19th Jul 2025379 PMAQI
19th Jul 20253810 PMAQI
19th Jul 20253811 PMAQI
20th Jul 20253812 AMAQI
20th Jul 2025321 AMAQI
20th Jul 2025372 AMAQI
20th Jul 2025373 AMAQI
20th Jul 2025484 AMAQI
20th Jul 2025415 AMAQI
25°C22/30°C
20th Jul 2025386 AMAQI
20th Jul 2025357 AMAQI
20th Jul 2025358 AMAQI
20th Jul 2025339 AMAQI
20th Jul 20253210 AMAQI
20th Jul 20252911 AMAQI
20th Jul 20253012 PMAQI
20th Jul 2025281 PMAQI
20th Jul 2025292 PMAQI
20th Jul 2025323 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025335 PMAQI
20th Jul 2025326 PMAQI
20th Jul 2025347 PMAQI
20th Jul 2025338 PMAQI
20th Jul 2025359 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253411 PMAQI
21st Jul 20253512 AMAQI
21st Jul 2025301 AMAQI
21st Jul 2025302 AMAQI
21st Jul 2025313 AMAQI
21st Jul 2025294 AMAQI
21st Jul 2025305 AMAQI
27°C22/34°C
21st Jul 2025326 AMAQI
21st Jul 2025327 AMAQI
21st Jul 2025328 AMAQI
21st Jul 2025329 AMAQI
21st Jul 20253210 AMAQI
21st Jul 20253011 AMAQI
21st Jul 20253012 PMAQI
21st Jul 2025321 PMAQI
21st Jul 2025342 PMAQI
21st Jul 2025363 PMAQI
21st Jul 2025384 PMAQI
21st Jul 2025385 PMAQI
21st Jul 2025386 PMAQI
21st Jul 2025347 PMAQI
21st Jul 2025338 PMAQI
21st Jul 2025399 PMAQI
21st Jul 20254010 PMAQI
21st Jul 20254111 PMAQI
22nd Jul 20254212 AMAQI
22nd Jul 2025501 AMAQI
22nd Jul 2025502 AMAQI
22nd Jul 2025513 AMAQI
22nd Jul 2025544 AMAQI
22nd Jul 2025555 AMAQI
25°C20/28°C
22nd Jul 2025616 AMAQI
22nd Jul 2025617 AMAQI
22nd Jul 2025588 AMAQI
22nd Jul 2025569 AMAQI
22nd Jul 20255510 AMAQI
22nd Jul 20255611 AMAQI
22nd Jul 20255612 PMAQI
22nd Jul 2025571 PMAQI
22nd Jul 2025572 PMAQI
22nd Jul 2025563 PMAQI
22nd Jul 2025564 PMAQI
22nd Jul 2025565 PMAQI
22nd Jul 2025556 PMAQI
22nd Jul 2025557 PMAQI
22nd Jul 2025548 PMAQI
22nd Jul 2025559 PMAQI
22nd Jul 20255610 PMAQI
22nd Jul 20255611 PMAQI
23rd Jul 20255612 AMAQI
23rd Jul 2025591 AMAQI
23rd Jul 2025612 AMAQI
23rd Jul 2025613 AMAQI
23rd Jul 2025624 AMAQI
23rd Jul 2025625 AMAQI
23°C17/30°C
23rd Jul 2025616 AMAQI
23rd Jul 2025617 AMAQI
23rd Jul 2025608 AMAQI
23rd Jul 2025609 AMAQI
23rd Jul 20255910 AMAQI
23rd Jul 20255811 AMAQI
23rd Jul 20255912 PMAQI
23rd Jul 2025561 PMAQI
23rd Jul 2025582 PMAQI
23rd Jul 2025603 PMAQI
23rd Jul 2025594 PMAQI
23rd Jul 2025595 PMAQI
23rd Jul 2025596 PMAQI
23rd Jul 2025597 PMAQI
23rd Jul 2025598 PMAQI
23rd Jul 2025599 PMAQI
23rd Jul 20256010 PMAQI
23rd Jul 20255911 PMAQI
24th Jul 20255812 AMAQI
24th Jul 2025591 AMAQI
24th Jul 2025572 AMAQI
24th Jul 2025543 AMAQI
24th Jul 2025534 AMAQI
24th Jul 2025535 AMAQI
24°C20/30°C
24th Jul 2025546 AMAQI
24th Jul 2025547 AMAQI
24th Jul 2025558 AMAQI
24th Jul 2025569 AMAQI
24th Jul 20255610 AMAQI
24th Jul 20255611 AMAQI
24th Jul 20255612 PMAQI
24th Jul 2025551 PMAQI
24th Jul 2025552 PMAQI
24th Jul 2025553 PMAQI
24th Jul 2025554 PMAQI
24th Jul 2025555 PMAQI
24th Jul 2025556 PMAQI
24th Jul 2025567 PMAQI
24th Jul 2025568 PMAQI
24th Jul 2025549 PMAQI
24th Jul 20255410 PMAQI
24th Jul 20255511 PMAQI
25th Jul 20255412 AMAQI
25th Jul 2025541 AMAQI
25th Jul 2025572 AMAQI
25th Jul 2025563 AMAQI
25th Jul 2025564 AMAQI
25th Jul 2025545 AMAQI
26°C19/34°C
25th Jul 2025546 AMAQI
25th Jul 2025537 AMAQI
25th Jul 2025548 AMAQI
25th Jul 2025539 AMAQI
25th Jul 20255210 AMAQI
25th Jul 20255411 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025542 PMAQI
25th Jul 2025543 PMAQI
25th Jul 2025544 PMAQI
25th Jul 2025535 PMAQI
25th Jul 2025526 PMAQI
25th Jul 2025547 PMAQI
25th Jul 2025548 PMAQI
25th Jul 2025549 PMAQI
25th Jul 20255310 PMAQI
25th Jul 20255311 PMAQI
26th Jul 20255012 AMAQI
26th Jul 2025481 AMAQI
26th Jul 2025442 AMAQI
26th Jul 2025463 AMAQI
26th Jul 2025484 AMAQI
26th Jul 2025485 AMAQI
29°C22/37°C
26th Jul 2025496 AMAQI
26th Jul 2025507 AMAQI
26th Jul 2025508 AMAQI
26th Jul 2025499 AMAQI
26th Jul 20254810 AMAQI
26th Jul 20254511 AMAQI
26th Jul 20254612 PMAQI
26th Jul 2025441 PMAQI
26th Jul 2025472 PMAQI
26th Jul 2025473 PMAQI
26th Jul 2025494 PMAQI
26th Jul 2025465 PMAQI
26th Jul 2025466 PMAQI
26th Jul 2025477 PMAQI
26th Jul 2025478 PMAQI
26th Jul 2025469 PMAQI
26th Jul 20254610 PMAQI
26th Jul 20254611 PMAQI
27th Jul 20254412 AMAQI
27th Jul 2025411 AMAQI
27th Jul 2025402 AMAQI
27th Jul 2025383 AMAQI
27th Jul 2025394 AMAQI
27th Jul 2025395 AMAQI
28°C22/34°C
27th Jul 2025396 AMAQI
27th Jul 2025387 AMAQI
27th Jul 2025388 AMAQI
27th Jul 2025389 AMAQI
27th Jul 20253710 AMAQI
27th Jul 20253711 AMAQI
27th Jul 20253812 PMAQI
27th Jul 2025401 PMAQI
27th Jul 2025382 PMAQI
27th Jul 2025393 PMAQI
27th Jul 2025394 PMAQI
27th Jul 2025375 PMAQI
27th Jul 2025366 PMAQI
27th Jul 2025387 PMAQI
27th Jul 2025408 PMAQI
27th Jul 2025339 PMAQI
27th Jul 20253310 PMAQI
27th Jul 20253311 PMAQI
28th Jul 20253212 AMAQI
28th Jul 2025241 AMAQI
28th Jul 2025252 AMAQI
28th Jul 2025283 AMAQI
28th Jul 2025304 AMAQI
28th Jul 2025355 AMAQI
27°C21/33°C
28th Jul 2025366 AMAQI
28th Jul 2025367 AMAQI
28th Jul 2025338 AMAQI
28th Jul 2025329 AMAQI
28th Jul 20253310 AMAQI
28th Jul 20253511 AMAQI
28th Jul 20253412 PMAQI
28th Jul 2025351 PMAQI
28th Jul 2025342 PMAQI
28th Jul 2025353 PMAQI
28th Jul 2025324 PMAQI
28th Jul 2025325 PMAQI
28th Jul 2025326 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025339 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253411 PMAQI
29th Jul 20253412 AMAQI
29th Jul 2025411 AMAQI
29th Jul 2025422 AMAQI
29th Jul 2025403 AMAQI
29th Jul 2025434 AMAQI
29th Jul 2025445 AMAQI
28°C22/34°C
29th Jul 2025426 AMAQI
29th Jul 2025407 AMAQI
29th Jul 2025398 AMAQI
29th Jul 2025399 AMAQI
29th Jul 20253910 AMAQI
29th Jul 20254111 AMAQI
29th Jul 20254012 PMAQI
29th Jul 2025401 PMAQI
29th Jul 2025432 PMAQI
29th Jul 2025443 PMAQI
29th Jul 2025424 PMAQI
29th Jul 2025445 PMAQI
29th Jul 2025446 PMAQI
29th Jul 2025427 PMAQI
29th Jul 2025428 PMAQI
29th Jul 2025429 PMAQI
29th Jul 20254210 PMAQI
29th Jul 20254311 PMAQI
30th Jul 20254212 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025332 AMAQI
30th Jul 2025313 AMAQI
30th Jul 2025324 AMAQI
30th Jul 2025335 AMAQI
28°C20/36°C
30th Jul 2025346 AMAQI
30th Jul 2025357 AMAQI
30th Jul 2025338 AMAQI
30th Jul 2025349 AMAQI
30th Jul 20253310 AMAQI
30th Jul 20253711 AMAQI
30th Jul 20254012 PMAQI
30th Jul 2025421 PMAQI
30th Jul 2025432 PMAQI
30th Jul 2025433 PMAQI
30th Jul 2025434 PMAQI
30th Jul 2025435 PMAQI
30th Jul 2025436 PMAQI
30th Jul 2025437 PMAQI
30th Jul 2025438 PMAQI
30th Jul 2025429 PMAQI
30th Jul 20254210 PMAQI
30th Jul 20254011 PMAQI
31st Jul 20253912 AMAQI
31st Jul 2025341 AMAQI
31st Jul 2025332 AMAQI
31st Jul 2025303 AMAQI
31st Jul 2025334 AMAQI
31st Jul 2025365 AMAQI
29°C21/35°C
31st Jul 2025416 AMAQI
31st Jul 2025447 AMAQI
31st Jul 2025468 AMAQI
31st Jul 2025509 AMAQI
31st Jul 20254810 AMAQI
31st Jul 20254711 AMAQI
31st Jul 20254512 PMAQI
31st Jul 2025481 PMAQI
31st Jul 2025482 PMAQI
31st Jul 2025473 PMAQI
31st Jul 2025454 PMAQI
31st Jul 2025405 PMAQI
31st Jul 2025396 PMAQI
31st Jul 2025457 PMAQI
31st Jul 2025508 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255411 PMAQI
1st Aug 20255712 AMAQI
1st Aug 2025551 AMAQI
1st Aug 2025552 AMAQI
1st Aug 2025503 AMAQI
1st Aug 2025504 AMAQI
1st Aug 2025475 AMAQI
25°C18/32°C
1st Aug 2025456 AMAQI
1st Aug 2025477 AMAQI
1st Aug 2025468 AMAQI
1st Aug 2025469 AMAQI
1st Aug 20254710 AMAQI
1st Aug 20254011 AMAQI
1st Aug 20254012 PMAQI
1st Aug 2025401 PMAQI
1st Aug 2025402 PMAQI
1st Aug 2025373 PMAQI
1st Aug 2025394 PMAQI
1st Aug 2025395 PMAQI
1st Aug 2025416 PMAQI
1st Aug 2025427 PMAQI
1st Aug 2025398 PMAQI
1st Aug 2025399 PMAQI
1st Aug 20254210 PMAQI
1st Aug 20254011 PMAQI
2nd Aug 20254312 AMAQI
2nd Aug 2025431 AMAQI
2nd Aug 2025402 AMAQI
2nd Aug 2025383 AMAQI
2nd Aug 2025414 AMAQI
2nd Aug 2025385 AMAQI
18°C17/19°C
2nd Aug 2025406 AMAQI
2nd Aug 2025357 AMAQI
2nd Aug 2025348 AMAQI
2nd Aug 2025339 AMAQI
2nd Aug 20253110 AMAQI
2nd Aug 20253211 AMAQI
2nd Aug 20253112 PMAQI
2nd Aug 2025341 PMAQI
2nd Aug 2025342 PMAQI
2nd Aug 2025343 PMAQI
2nd Aug 2025324 PMAQI
2nd Aug 2025315 PMAQI
2nd Aug 2025326 PMAQI
2nd Aug 2025327 PMAQI
2nd Aug 2025338 PMAQI
2nd Aug 2025369 PMAQI
2nd Aug 20253910 PMAQI
2nd Aug 20254511 PMAQI
3rd Aug 20254512 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025394 AMAQI
3rd Aug 2025395 AMAQI
20°C15/25°C
3rd Aug 2025366 AMAQI
3rd Aug 2025357 AMAQI
3rd Aug 2025358 AMAQI
3rd Aug 2025379 AMAQI
3rd Aug 20253710 AMAQI
3rd Aug 20254111 AMAQI
3rd Aug 20254012 PMAQI
3rd Aug 2025391 PMAQI
3rd Aug 2025402 PMAQI
3rd Aug 2025403 PMAQI
3rd Aug 2025394 PMAQI
3rd Aug 2025385 PMAQI
3rd Aug 2025406 PMAQI
3rd Aug 2025377 PMAQI
3rd Aug 2025388 PMAQI
3rd Aug 2025399 PMAQI
3rd Aug 20253910 PMAQI
3rd Aug 20253811 PMAQI
4th Aug 20254112 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025392 AMAQI
4th Aug 2025403 AMAQI
4th Aug 2025404 AMAQI
4th Aug 2025425 AMAQI
20°C11/28°C
4th Aug 2025406 AMAQI
4th Aug 2025387 AMAQI
4th Aug 2025388 AMAQI
4th Aug 2025429 AMAQI
4th Aug 20254810 AMAQI
4th Aug 20255011 AMAQI
4th Aug 20255212 PMAQI
4th Aug 2025551 PMAQI
4th Aug 2025562 PMAQI
4th Aug 2025563 PMAQI
4th Aug 2025574 PMAQI
4th Aug 2025585 PMAQI
4th Aug 2025586 PMAQI
4th Aug 2025457 PMAQI
4th Aug 2025518 PMAQI
4th Aug 2025609 PMAQI
4th Aug 20255710 PMAQI
4th Aug 20255811 PMAQI
5th Aug 20255712 AMAQI
5th Aug 2025561 AMAQI
5th Aug 2025582 AMAQI
5th Aug 2025583 AMAQI
5th Aug 2025574 AMAQI
5th Aug 2025565 AMAQI
21°C9/29°C
5th Aug 2025586 AMAQI
5th Aug 2025577 AMAQI
5th Aug 2025608 AMAQI
5th Aug 2025629 AMAQI
5th Aug 20256610 AMAQI
5th Aug 20256511 AMAQI
5th Aug 20256512 PMAQI
5th Aug 2025651 PMAQI
5th Aug 2025672 PMAQI
5th Aug 2025683 PMAQI
5th Aug 2025704 PMAQI
5th Aug 2025725 PMAQI
5th Aug 2025716 PMAQI
5th Aug 2025597 PMAQI
5th Aug 2025668 PMAQI
5th Aug 2025699 PMAQI
5th Aug 20257310 PMAQI
5th Aug 20257011 PMAQI
6th Aug 20257012 AMAQI
6th Aug 2025711 AMAQI
6th Aug 2025722 AMAQI
6th Aug 2025713 AMAQI
6th Aug 2025694 AMAQI
6th Aug 2025705 AMAQI
20°C15/24°C
6th Aug 2025706 AMAQI
6th Aug 2025707 AMAQI
6th Aug 2025748 AMAQI
6th Aug 2025739 AMAQI
6th Aug 20257210 AMAQI
6th Aug 20257211 AMAQI
6th Aug 20257312 PMAQI
6th Aug 2025721 PMAQI
6th Aug 2025722 PMAQI
6th Aug 2025703 PMAQI
6th Aug 2025724 PMAQI
6th Aug 2025685 PMAQI
6th Aug 2025686 PMAQI
6th Aug 2025747 PMAQI
6th Aug 2025678 PMAQI
6th Aug 2025609 PMAQI
6th Aug 20256010 PMAQI
6th Aug 20256411 PMAQI
7th Aug 20256812 AMAQI
7th Aug 2025801 AMAQI
7th Aug 2025842 AMAQI
7th Aug 2025893 AMAQI
7th Aug 2025884 AMAQI
7th Aug 2025875 AMAQI
21°C18/23°C
7th Aug 2025876 AMAQI
6 AM7th Aug 2025837 AMAQI
7th Aug 2025798 AMAQI
7th Aug 2025739 AMAQI
7th Aug 20256610 AMAQI
7th Aug 20256411 AMAQI
7th Aug 20256812 PMAQI
7th Aug 2025741 PMAQI
1 PM7th Aug 2025792 PMAQI
7th Aug 2025763 PMAQI
7th Aug 2025774 PMAQI
7th Aug 2025785 PMAQI
7th Aug 2025806 PMAQI
7th Aug 2025787 PMAQI
7th Aug 2025778 PMAQI
8 PM7th Aug 2025779 PMAQI
7th Aug 20257710 PMAQI
7th Aug 20257711 PMAQI
1 AM
5 AM
22°C18/28°C
Day time
Avg. Highest Time
6 AM - 8 PM
44AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM
44AQI
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. 44), while the lowest AQI was between 6 AM to 8 PM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 11 PM
44AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
44AQI
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. 44), while the lowest AQI was between 12 AM to 11 PM (Avg. 44).
2025 Days Vs Air Quality
Frederick Co. Public School, Winchester, Virginia, United States
2025
86%
187
14%
31
Total number of days with different AQI categories in last 220 days in 2025 (145 days remaining)
Good
187 DaysModerate
31 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 220 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
Frederick Co. Public School, Winchester, Virginia, 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
19AQI
19AQI
2nd January 2025
20AQI
20AQI
3rd January 2025
28AQI
28AQI
4th January 2025
20AQI
20AQI
5th January 2025
26AQI
26AQI
6th January 2025
37AQI
37AQI
7th January 2025
18AQI
18AQI
8th January 2025
23AQI
23AQI
9th January 2025
20AQI
20AQI
10th January 2025
43AQI
43AQI
11th January 2025
52AQI
52AQI
12th January 2025
51AQI
51AQI
13th January 2025
41AQI
41AQI
14th January 2025
21AQI
21AQI
15th January 2025
29AQI
29AQI
16th January 2025
44AQI
44AQI
17th January 2025
37AQI
37AQI
18th January 2025
61AQI
61AQI
19th January 2025
45AQI
45AQI
20th January 2025
26AQI
26AQI
21st January 2025
41AQI
41AQI
22nd January 2025
49AQI
49AQI
23rd January 2025
63AQI
63AQI
24th January 2025
45AQI
45AQI
25th January 2025
54AQI
54AQI
26th January 2025
34AQI
34AQI
27th January 2025
29AQI
29AQI
28th January 2025
24AQI
24AQI
29th January 2025
24AQI
24AQI
30th January 2025
31AQI
31AQI
31st January 2025
37AQI
37AQI
1st February 2025
20AQI
20AQI
2nd February 2025
24AQI
24AQI
3rd February 2025
45AQI
45AQI
4th February 2025
34AQI
34AQI
5th February 2025
27AQI
27AQI
6th February 2025
30AQI
30AQI
7th February 2025
26AQI
26AQI
8th February 2025
32AQI
32AQI
9th February 2025
25AQI
25AQI
10th February 2025
33AQI
33AQI
11th February 2025
44AQI
44AQI
12th February 2025
58AQI
58AQI
13th February 2025
25AQI
25AQI
14th February 2025
23AQI
23AQI
15th February 2025
25AQI
25AQI
16th February 2025
24AQI
24AQI
17th February 2025
19AQI
19AQI
18th February 2025
22AQI
22AQI
19th February 2025
27AQI
27AQI
20th February 2025
26AQI
26AQI
21st February 2025
25AQI
25AQI
22nd February 2025
40AQI
40AQI
23rd February 2025
33AQI
33AQI
24th February 2025
42AQI
42AQI
25th February 2025
33AQI
33AQI
26th February 2025
35AQI
35AQI
27th February 2025
40AQI
40AQI
28th February 2025
22AQI
22AQI
1st March 2025
21AQI
21AQI
2nd March 2025
22AQI
22AQI
3rd March 2025
37AQI
37AQI
4th March 2025
42AQI
42AQI
5th March 2025
21AQI
21AQI
6th March 2025
17AQI
17AQI
7th March 2025
21AQI
21AQI
8th March 2025
23AQI
23AQI
9th March 2025
25AQI
25AQI
10th March 2025
31AQI
31AQI
11th March 2025
38AQI
38AQI
12th March 2025
37AQI
37AQI
13th March 2025
45AQI
45AQI
14th March 2025
60AQI
60AQI
15th March 2025
50AQI
50AQI
16th March 2025
34AQI
34AQI
17th March 2025
18AQI
18AQI
18th March 2025
20AQI
20AQI
19th March 2025
28AQI
28AQI
20th March 2025
31AQI
31AQI
21st March 2025
16AQI
16AQI
22nd March 2025
20AQI
20AQI
23rd March 2025
23AQI
23AQI
24th March 2025
22AQI
22AQI
25th March 2025
18AQI
18AQI
26th March 2025
20AQI
20AQI
27th March 2025
25AQI
25AQI
28th March 2025
39AQI
39AQI
29th March 2025
60AQI
60AQI
30th March 2025
41AQI
41AQI
31st March 2025
24AQI
24AQI
1st April 2025
18AQI
18AQI
2nd April 2025
26AQI
26AQI
3rd April 2025
28AQI
28AQI
4th April 2025
25AQI
25AQI
5th April 2025
40AQI
40AQI
6th April 2025
40AQI
40AQI
7th April 2025
21AQI
21AQI
8th April 2025
18AQI
18AQI
9th April 2025
26AQI
26AQI
10th April 2025
28AQI
28AQI
11th April 2025
39AQI
39AQI
12th April 2025
28AQI
28AQI
13th April 2025
26AQI
26AQI
14th April 2025
36AQI
36AQI
15th April 2025
24AQI
24AQI
16th April 2025
17AQI
17AQI
17th April 2025
22AQI
22AQI
18th April 2025
39AQI
39AQI
19th April 2025
61AQI
61AQI
20th April 2025
37AQI
37AQI
21st April 2025
42AQI
42AQI
22nd April 2025
33AQI
33AQI
23rd April 2025
23AQI
23AQI
24th April 2025
47AQI
47AQI
25th April 2025
52AQI
52AQI
26th April 2025
32AQI
32AQI
27th April 2025
13AQI
13AQI
28th April 2025
18AQI
18AQI
29th April 2025
36AQI
36AQI
30th April 2025
26AQI
26AQI
1st May 2025
36AQI
36AQI
2nd May 2025
30AQI
30AQI
3rd May 2025
26AQI
26AQI
4th May 2025
20AQI
20AQI
5th May 2025
23AQI
23AQI
6th May 2025
18AQI
18AQI
7th May 2025
19AQI
19AQI
8th May 2025
26AQI
26AQI
9th May 2025
19AQI
19AQI
10th May 2025
21AQI
21AQI
11th May 2025
27AQI
27AQI
12th May 2025
33AQI
33AQI
13th May 2025
17AQI
17AQI
14th May 2025
20AQI
20AQI
15th May 2025
30AQI
30AQI
16th May 2025
46AQI
46AQI
17th May 2025
26AQI
26AQI
18th May 2025
17AQI
17AQI
19th May 2025
20AQI
20AQI
20th May 2025
23AQI
23AQI
21st May 2025
19AQI
19AQI
22nd May 2025
13AQI
13AQI
23rd May 2025
14AQI
14AQI
24th May 2025
15AQI
15AQI
25th May 2025
15AQI
15AQI
26th May 2025
18AQI
18AQI
27th May 2025
24AQI
24AQI
28th May 2025
14AQI
14AQI
29th May 2025
22AQI
22AQI
30th May 2025
29AQI
29AQI
31st May 2025
36AQI
36AQI
1st June 2025
20AQI
20AQI
2nd June 2025
22AQI
22AQI
3rd June 2025
31AQI
31AQI
4th June 2025
54AQI
54AQI
5th June 2025
69AQI
69AQI
6th June 2025
56AQI
56AQI
7th June 2025
30AQI
30AQI
8th June 2025
57AQI
57AQI
9th June 2025
40AQI
40AQI
10th June 2025
43AQI
43AQI
11th June 2025
59AQI
59AQI
12th June 2025
68AQI
68AQI
13th June 2025
73AQI
73AQI
14th June 2025
64AQI
64AQI
15th June 2025
48AQI
48AQI
16th June 2025
22AQI
22AQI
17th June 2025
23AQI
23AQI
18th June 2025
20AQI
20AQI
19th June 2025
26AQI
26AQI
20th June 2025
23AQI
23AQI
21st June 2025
42AQI
42AQI
22nd June 2025
45AQI
45AQI
23rd June 2025
53AQI
53AQI
24th June 2025
57AQI
57AQI
25th June 2025
57AQI
57AQI
26th June 2025
49AQI
49AQI
27th June 2025
39AQI
39AQI
28th June 2025
29AQI
29AQI
29th June 2025
35AQI
35AQI
30th June 2025
39AQI
39AQI
1st July 2025
33AQI
33AQI
2nd July 2025
29AQI
29AQI
3rd July 2025
41AQI
41AQI
4th July 2025
56AQI
56AQI
5th July 2025
77AQI
77AQI
6th July 2025
64AQI
64AQI
7th July 2025
36AQI
36AQI
8th July 2025
51AQI
51AQI
9th July 2025
38AQI
38AQI
10th July 2025
42AQI
42AQI
11th July 2025
48AQI
48AQI
12th July 2025
40AQI
40AQI
13th July 2025
36AQI
36AQI
14th July 2025
34AQI
34AQI
15th July 2025
33AQI
33AQI
16th July 2025
37AQI
37AQI
17th July 2025
29AQI
29AQI
18th July 2025
28AQI
28AQI
19th July 2025
38AQI
38AQI
20th July 2025
35AQI
35AQI
21st July 2025
34AQI
34AQI
22nd July 2025
54AQI
54AQI
23rd July 2025
59AQI
59AQI
24th July 2025
55AQI
55AQI
25th July 2025
54AQI
54AQI
26th July 2025
47AQI
47AQI
27th July 2025
38AQI
38AQI
28th July 2025
32AQI
32AQI
29th July 2025
41AQI
41AQI
30th July 2025
38AQI
38AQI
31st July 2025
43AQI
43AQI
1st August 2025
45AQI
45AQI
2nd August 2025
36AQI
36AQI
3rd August 2025
39AQI
39AQI
4th August 2025
48AQI
48AQI
5th August 2025
63AQI
63AQI
6th August 2025
70AQI
70AQI
35AQI
31AQI
30AQI
31AQI
23AQI
43AQI
43AQI
50AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202534AQI
26
5
27
1
29
2
28
2
31
19
11
23
8
4
2
187
31
Highest AQI recorded in
August50AQI
Lowest AQI recorded in
May23AQI
202430AQI
24
7
26
3
30
1
30
31
30
30
1
25
6
30
30
1
30
28
3
344
22
Highest AQI recorded in
August35AQI
Lowest AQI recorded in
May24AQI
202335AQI
27
4
24
4
30
1
27
3
25
6
13
12
4
1
25
5
1
26
5
30
31
28
1
22
9
308
49
5
2
Highest AQI recorded in
June61AQI
Lowest AQI recorded in
October22AQI
202234AQI
22
9
18
3
27
4
27
2
29
2
29
1
20
3
28
2
31
27
3
20
11
281
37
Highest AQI recorded in
January45AQI
Lowest AQI recorded in
September29AQI
202137AQI
23
7
19
9
26
5
29
1
29
2
28
2
18
12
1
27
4
27
3
31
27
3
22
9
306
57
1
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
October28AQI
202031AQI
8
21
18
29
29
1
31
30
31
24
6
22
9
243
16
Highest AQI recorded in
December44AQI
Lowest AQI recorded in
March21AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
37AQILeast Polluted Year Recorded
2024(Avg.)
30AQIFrederick Co. Public School's annual 2025 AQI (34) shows an average percentage change of 2.7% (worsened AQI) compared to previous years: 2020 (31), 2021 (37), 2022 (34), 2023 (35), 2024 (30).
