Upland, California, 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
Upland, California, United States
2021
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
25th Aug 2021
75AQILowest AQI recorded on
19th Aug 2021
27AQISame Day Analysis (11th August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 60 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Upland, California, United States
AQI
Day
Night
.
5 AM11th Aug 2025
7 PM
4 AM12th Aug 2025
Day time
Avg. Highest Time
6AM11th Aug
62AQI
Avg. Lowest Time
7PM11th Aug
58AQI
Night time
Avg. Highest Time
5AM11th Aug
62AQI
Avg. Lowest Time
4AM12th Aug
54AQI
In the last 24 hours,
Upland's AQI reached its highest point of 62 at 5 AM during the Night, while the lowest point, 54, was recorded at 4 AM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Upland, California, United States
JulAug
13th - 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 - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
13th Jul 2025475 AMAQI
13th Jul 2025486 AMAQI
13th Jul 2025527 AMAQI
13th Jul 2025538 AMAQI
13th Jul 2025549 AMAQI
13th Jul 20255410 AMAQI
13th Jul 20255311 AMAQI
13th Jul 20255312 PMAQI
13th Jul 2025541 PMAQI
13th Jul 2025562 PMAQI
13th Jul 2025563 PMAQI
13th Jul 2025544 PMAQI
13th Jul 2025545 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025527 PMAQI
13th Jul 2025548 PMAQI
13th Jul 2025539 PMAQI
13th Jul 20255310 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255212 AMAQI
14th Jul 2025491 AMAQI
14th Jul 2025502 AMAQI
14th Jul 2025443 AMAQI
14th Jul 2025394 AMAQI
24°C19/32°C
14th Jul 2025325 AMAQI
14th Jul 2025356 AMAQI
14th Jul 2025467 AMAQI
14th Jul 2025418 AMAQI
14th Jul 2025459 AMAQI
14th Jul 20255010 AMAQI
14th Jul 20255211 AMAQI
14th Jul 20255312 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025532 PMAQI
14th Jul 2025493 PMAQI
14th Jul 2025504 PMAQI
14th Jul 2025485 PMAQI
14th Jul 2025496 PMAQI
14th Jul 2025507 PMAQI
14th Jul 2025558 PMAQI
14th Jul 2025539 PMAQI
14th Jul 20255210 PMAQI
14th Jul 20255211 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025511 AMAQI
15th Jul 2025482 AMAQI
15th Jul 2025423 AMAQI
15th Jul 2025374 AMAQI
24°C17/33°C
15th Jul 2025365 AMAQI
15th Jul 2025366 AMAQI
15th Jul 2025347 AMAQI
15th Jul 2025368 AMAQI
15th Jul 2025439 AMAQI
15th Jul 20254910 AMAQI
15th Jul 20255211 AMAQI
15th Jul 20255212 PMAQI
15th Jul 2025521 PMAQI
15th Jul 2025512 PMAQI
15th Jul 2025493 PMAQI
15th Jul 2025434 PMAQI
15th Jul 2025475 PMAQI
15th Jul 2025486 PMAQI
15th Jul 2025507 PMAQI
15th Jul 2025468 PMAQI
15th Jul 2025429 PMAQI
15th Jul 20254210 PMAQI
15th Jul 20254411 PMAQI
16th Jul 20254412 AMAQI
16th Jul 2025461 AMAQI
16th Jul 2025482 AMAQI
16th Jul 2025503 AMAQI
16th Jul 2025484 AMAQI
23°C17/31°C
16th Jul 2025465 AMAQI
16th Jul 2025476 AMAQI
16th Jul 2025427 AMAQI
16th Jul 2025428 AMAQI
16th Jul 2025419 AMAQI
16th Jul 20254410 AMAQI
16th Jul 20255011 AMAQI
16th Jul 20254612 PMAQI
16th Jul 2025461 PMAQI
16th Jul 2025462 PMAQI
16th Jul 2025483 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025415 PMAQI
16th Jul 2025416 PMAQI
16th Jul 2025487 PMAQI
16th Jul 2025448 PMAQI
16th Jul 2025389 PMAQI
16th Jul 20253910 PMAQI
16th Jul 20253711 PMAQI
17th Jul 20253712 AMAQI
17th Jul 2025371 AMAQI
17th Jul 2025352 AMAQI
17th Jul 2025323 AMAQI
17th Jul 2025264 AMAQI
23°C16/31°C
17th Jul 2025255 AMAQI
17th Jul 2025296 AMAQI
17th Jul 2025297 AMAQI
17th Jul 2025328 AMAQI
17th Jul 2025349 AMAQI
17th Jul 20253710 AMAQI
17th Jul 20254411 AMAQI
17th Jul 20254212 PMAQI
17th Jul 2025421 PMAQI
17th Jul 2025372 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025354 PMAQI
17th Jul 2025335 PMAQI
17th Jul 2025326 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025378 PMAQI
17th Jul 2025379 PMAQI
17th Jul 20253610 PMAQI
17th Jul 20253511 PMAQI
18th Jul 20253612 AMAQI
18th Jul 2025351 AMAQI
18th Jul 2025352 AMAQI
18th Jul 2025333 AMAQI
18th Jul 2025354 AMAQI
24°C17/33°C
18th Jul 2025395 AMAQI
18th Jul 2025366 AMAQI
18th Jul 2025367 AMAQI
18th Jul 2025338 AMAQI
18th Jul 2025359 AMAQI
18th Jul 20254210 AMAQI
18th Jul 20253911 AMAQI
18th Jul 20253612 PMAQI
18th Jul 2025361 PMAQI
18th Jul 2025382 PMAQI
18th Jul 2025383 PMAQI
18th Jul 2025404 PMAQI
18th Jul 2025415 PMAQI
18th Jul 2025406 PMAQI
18th Jul 2025397 PMAQI
18th Jul 2025398 PMAQI
18th Jul 2025419 PMAQI
18th Jul 20254110 PMAQI
18th Jul 20254011 PMAQI
19th Jul 20253812 AMAQI
19th Jul 2025381 AMAQI
19th Jul 2025382 AMAQI
19th Jul 2025363 AMAQI
19th Jul 2025334 AMAQI
23°C18/31°C
19th Jul 2025335 AMAQI
19th Jul 2025336 AMAQI
19th Jul 2025327 AMAQI
19th Jul 2025368 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20253810 AMAQI
19th Jul 20253811 AMAQI
19th Jul 20254112 PMAQI
19th Jul 2025411 PMAQI
19th Jul 2025402 PMAQI
19th Jul 2025443 PMAQI
19th Jul 2025444 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025426 PMAQI
19th Jul 2025417 PMAQI
19th Jul 2025428 PMAQI
19th Jul 2025469 PMAQI
19th Jul 20254410 PMAQI
19th Jul 20254211 PMAQI
20th Jul 20254212 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025392 AMAQI
20th Jul 2025423 AMAQI
20th Jul 2025404 AMAQI
22°C17/31°C
20th Jul 2025425 AMAQI
20th Jul 2025446 AMAQI
20th Jul 2025487 AMAQI
20th Jul 2025438 AMAQI
20th Jul 2025449 AMAQI
20th Jul 20254610 AMAQI
20th Jul 20254411 AMAQI
20th Jul 20254512 PMAQI
20th Jul 2025441 PMAQI
20th Jul 2025462 PMAQI
20th Jul 2025453 PMAQI
20th Jul 2025454 PMAQI
20th Jul 2025445 PMAQI
20th Jul 2025426 PMAQI
20th Jul 2025447 PMAQI
20th Jul 2025448 PMAQI
20th Jul 2025419 PMAQI
20th Jul 20254410 PMAQI
20th Jul 20254111 PMAQI
21st Jul 20254212 AMAQI
21st Jul 2025421 AMAQI
21st Jul 2025432 AMAQI
21st Jul 2025423 AMAQI
21st Jul 2025424 AMAQI
22°C16/30°C
21st Jul 2025415 AMAQI
21st Jul 2025436 AMAQI
21st Jul 2025487 AMAQI
21st Jul 2025458 AMAQI
21st Jul 2025489 AMAQI
21st Jul 20254610 AMAQI
21st Jul 20254611 AMAQI
21st Jul 20254312 PMAQI
21st Jul 2025461 PMAQI
21st Jul 2025432 PMAQI
21st Jul 2025443 PMAQI
21st Jul 2025434 PMAQI
21st Jul 2025485 PMAQI
21st Jul 2025426 PMAQI
21st Jul 2025467 PMAQI
21st Jul 2025458 PMAQI
21st Jul 2025449 PMAQI
21st Jul 20254410 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20253912 AMAQI
22nd Jul 2025391 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025373 AMAQI
22nd Jul 2025224 AMAQI
20°C16/26°C
22nd Jul 2025255 AMAQI
22nd Jul 2025276 AMAQI
22nd Jul 2025327 AMAQI
22nd Jul 2025348 AMAQI
22nd Jul 2025349 AMAQI
22nd Jul 20253310 AMAQI
22nd Jul 20253611 AMAQI
22nd Jul 20253712 PMAQI
22nd Jul 2025371 PMAQI
22nd Jul 2025342 PMAQI
22nd Jul 2025353 PMAQI
22nd Jul 2025364 PMAQI
22nd Jul 2025385 PMAQI
22nd Jul 2025366 PMAQI
22nd Jul 2025347 PMAQI
22nd Jul 2025358 PMAQI
22nd Jul 2025409 PMAQI
22nd Jul 20254010 PMAQI
22nd Jul 20253611 PMAQI
23rd Jul 20253312 AMAQI
23rd Jul 2025341 AMAQI
23rd Jul 2025332 AMAQI
23rd Jul 2025333 AMAQI
23rd Jul 2025254 AMAQI
20°C15/29°C
23rd Jul 2025325 AMAQI
23rd Jul 2025276 AMAQI
23rd Jul 2025307 AMAQI
23rd Jul 2025328 AMAQI
23rd Jul 2025309 AMAQI
23rd Jul 20253010 AMAQI
23rd Jul 20253211 AMAQI
23rd Jul 20253412 PMAQI
23rd Jul 2025341 PMAQI
23rd Jul 2025352 PMAQI
23rd Jul 2025363 PMAQI
23rd Jul 2025344 PMAQI
23rd Jul 2025345 PMAQI
23rd Jul 2025326 PMAQI
23rd Jul 2025327 PMAQI
23rd Jul 2025328 PMAQI
23rd Jul 2025339 PMAQI
23rd Jul 20253210 PMAQI
23rd Jul 20253111 PMAQI
24th Jul 20253012 AMAQI
24th Jul 2025301 AMAQI
24th Jul 2025312 AMAQI
24th Jul 2025333 AMAQI
24th Jul 2025334 AMAQI
22°C15/31°C
24th Jul 2025345 AMAQI
24th Jul 2025296 AMAQI
24th Jul 2025337 AMAQI
24th Jul 2025338 AMAQI
24th Jul 2025309 AMAQI
24th Jul 20252910 AMAQI
24th Jul 20253611 AMAQI
24th Jul 20254012 PMAQI
24th Jul 2025391 PMAQI
24th Jul 2025342 PMAQI
24th Jul 2025313 PMAQI
24th Jul 2025304 PMAQI
24th Jul 2025295 PMAQI
24th Jul 2025286 PMAQI
24th Jul 2025327 PMAQI
24th Jul 2025348 PMAQI
24th Jul 2025329 PMAQI
24th Jul 20252710 PMAQI
24th Jul 20252611 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025281 AMAQI
25th Jul 2025302 AMAQI
25th Jul 2025283 AMAQI
25th Jul 2025244 AMAQI
22°C15/31°C
25th Jul 2025235 AMAQI
25th Jul 2025266 AMAQI
25th Jul 2025247 AMAQI
25th Jul 2025248 AMAQI
25th Jul 2025249 AMAQI
25th Jul 20252610 AMAQI
25th Jul 20253011 AMAQI
25th Jul 20253112 PMAQI
25th Jul 2025381 PMAQI
25th Jul 2025292 PMAQI
25th Jul 2025263 PMAQI
25th Jul 2025264 PMAQI
25th Jul 2025255 PMAQI
25th Jul 2025256 PMAQI
25th Jul 2025247 PMAQI
25th Jul 2025258 PMAQI
25th Jul 2025269 PMAQI
25th Jul 20252610 PMAQI
25th Jul 20252411 PMAQI
26th Jul 20252512 AMAQI
26th Jul 2025251 AMAQI
26th Jul 2025242 AMAQI
26th Jul 2025233 AMAQI
26th Jul 2025284 AMAQI
20°C15/29°C
26th Jul 2025255 AMAQI
26th Jul 2025226 AMAQI
26th Jul 2025227 AMAQI
26th Jul 2025238 AMAQI
26th Jul 2025239 AMAQI
26th Jul 20252710 AMAQI
26th Jul 20252911 AMAQI
26th Jul 20252912 PMAQI
26th Jul 2025321 PMAQI
26th Jul 2025352 PMAQI
26th Jul 2025333 PMAQI
26th Jul 2025314 PMAQI
26th Jul 2025305 PMAQI
26th Jul 2025286 PMAQI
26th Jul 2025287 PMAQI
26th Jul 2025288 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20252810 PMAQI
26th Jul 20253011 PMAQI
27th Jul 20253212 AMAQI
27th Jul 2025321 AMAQI
27th Jul 2025322 AMAQI
27th Jul 2025313 AMAQI
27th Jul 2025284 AMAQI
19°C13/26°C
27th Jul 2025265 AMAQI
27th Jul 2025276 AMAQI
27th Jul 2025297 AMAQI
27th Jul 2025348 AMAQI
27th Jul 2025329 AMAQI
27th Jul 20252810 AMAQI
27th Jul 20253211 AMAQI
27th Jul 20253312 PMAQI
27th Jul 2025331 PMAQI
27th Jul 2025322 PMAQI
27th Jul 2025323 PMAQI
27th Jul 2025324 PMAQI
27th Jul 2025325 PMAQI
27th Jul 2025326 PMAQI
27th Jul 2025327 PMAQI
27th Jul 2025318 PMAQI
27th Jul 2025329 PMAQI
27th Jul 20253010 PMAQI
27th Jul 20253011 PMAQI
28th Jul 20253012 AMAQI
28th Jul 2025281 AMAQI
28th Jul 2025292 AMAQI
28th Jul 2025333 AMAQI
28th Jul 2025354 AMAQI
21°C15/30°C
28th Jul 2025305 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025277 AMAQI
28th Jul 2025278 AMAQI
28th Jul 2025259 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20253411 AMAQI
28th Jul 20254412 PMAQI
28th Jul 2025441 PMAQI
28th Jul 2025412 PMAQI
28th Jul 2025373 PMAQI
28th Jul 2025344 PMAQI
28th Jul 2025345 PMAQI
28th Jul 2025356 PMAQI
28th Jul 2025337 PMAQI
28th Jul 2025348 PMAQI
28th Jul 2025379 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253311 PMAQI
29th Jul 20253412 AMAQI
29th Jul 2025321 AMAQI
29th Jul 2025332 AMAQI
29th Jul 2025333 AMAQI
29th Jul 2025334 AMAQI
22°C16/31°C
29th Jul 2025315 AMAQI
29th Jul 2025326 AMAQI
29th Jul 2025327 AMAQI
29th Jul 2025368 AMAQI
29th Jul 2025389 AMAQI
29th Jul 20254210 AMAQI
29th Jul 20255111 AMAQI
29th Jul 20254812 PMAQI
29th Jul 2025441 PMAQI
29th Jul 2025442 PMAQI
29th Jul 2025403 PMAQI
29th Jul 2025374 PMAQI
29th Jul 2025385 PMAQI
29th Jul 2025356 PMAQI
29th Jul 2025367 PMAQI
29th Jul 2025368 PMAQI
29th Jul 2025419 PMAQI
29th Jul 20253910 PMAQI
29th Jul 20253811 PMAQI
30th Jul 20254212 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025372 AMAQI
30th Jul 2025373 AMAQI
30th Jul 2025384 AMAQI
24°C16/33°C
30th Jul 2025405 AMAQI
30th Jul 2025436 AMAQI
30th Jul 2025407 AMAQI
30th Jul 2025498 AMAQI
30th Jul 2025499 AMAQI
30th Jul 20254810 AMAQI
30th Jul 20254611 AMAQI
30th Jul 20254612 PMAQI
30th Jul 2025441 PMAQI
30th Jul 2025422 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025424 PMAQI
30th Jul 2025425 PMAQI
30th Jul 2025426 PMAQI
30th Jul 2025427 PMAQI
30th Jul 2025428 PMAQI
30th Jul 2025439 PMAQI
30th Jul 20254010 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20254412 AMAQI
31st Jul 2025431 AMAQI
31st Jul 2025492 AMAQI
31st Jul 2025453 AMAQI
31st Jul 2025494 AMAQI
24°C17/34°C
31st Jul 2025525 AMAQI
31st Jul 2025536 AMAQI
31st Jul 2025547 AMAQI
31st Jul 2025528 AMAQI
31st Jul 2025569 AMAQI
31st Jul 20256210 AMAQI
31st Jul 20256111 AMAQI
31st Jul 20255712 PMAQI
31st Jul 2025551 PMAQI
31st Jul 2025542 PMAQI
31st Jul 2025523 PMAQI
31st Jul 2025504 PMAQI
31st Jul 2025505 PMAQI
31st Jul 2025486 PMAQI
31st Jul 2025507 PMAQI
31st Jul 2025508 PMAQI
31st Jul 2025529 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255211 PMAQI
1st Aug 20255112 AMAQI
1st Aug 2025521 AMAQI
1st Aug 2025512 AMAQI
1st Aug 2025463 AMAQI
1st Aug 2025544 AMAQI
26°C19/34°C
1st Aug 2025535 AMAQI
1st Aug 2025536 AMAQI
1st Aug 2025527 AMAQI
1st Aug 2025508 AMAQI
1st Aug 2025529 AMAQI
1st Aug 20255910 AMAQI
1st Aug 20255311 AMAQI
1st Aug 20255312 PMAQI
1st Aug 2025541 PMAQI
1st Aug 2025542 PMAQI
1st Aug 2025553 PMAQI
1st Aug 2025544 PMAQI
1st Aug 2025525 PMAQI
1st Aug 2025516 PMAQI
1st Aug 2025497 PMAQI
1st Aug 2025518 PMAQI
1st Aug 2025519 PMAQI
1st Aug 20255210 PMAQI
1st Aug 20255111 PMAQI
2nd Aug 20255012 AMAQI
2nd Aug 2025501 AMAQI
2nd Aug 2025512 AMAQI
2nd Aug 2025543 AMAQI
2nd Aug 2025544 AMAQI
25°C20/33°C
2nd Aug 2025525 AMAQI
2nd Aug 2025526 AMAQI
2nd Aug 2025487 AMAQI
2nd Aug 2025488 AMAQI
2nd Aug 2025509 AMAQI
2nd Aug 20255310 AMAQI
2nd Aug 20255311 AMAQI
2nd Aug 20255312 PMAQI
2nd Aug 2025541 PMAQI
2nd Aug 2025542 PMAQI
2nd Aug 2025543 PMAQI
2nd Aug 2025544 PMAQI
2nd Aug 2025535 PMAQI
2nd Aug 2025536 PMAQI
2nd Aug 2025517 PMAQI
2nd Aug 2025528 PMAQI
2nd Aug 2025569 PMAQI
2nd Aug 20255610 PMAQI
2nd Aug 20255611 PMAQI
3rd Aug 20255412 AMAQI
3rd Aug 2025541 AMAQI
3rd Aug 2025522 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025544 AMAQI
25°C19/33°C
3rd Aug 2025555 AMAQI
3rd Aug 2025536 AMAQI
3rd Aug 2025547 AMAQI
3rd Aug 2025558 AMAQI
3rd Aug 2025549 AMAQI
3rd Aug 20255410 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20255412 PMAQI
3rd Aug 2025531 PMAQI
3rd Aug 2025542 PMAQI
3rd Aug 2025553 PMAQI
3rd Aug 2025584 PMAQI
3rd Aug 2025585 PMAQI
3rd Aug 2025586 PMAQI
3rd Aug 2025557 PMAQI
3rd Aug 2025588 PMAQI
3rd Aug 2025629 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255811 PMAQI
4th Aug 20255712 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025574 AMAQI
25°C19/34°C
4th Aug 2025585 AMAQI
4th Aug 2025606 AMAQI
4th Aug 2025587 AMAQI
4th Aug 2025598 AMAQI
4th Aug 2025609 AMAQI
4th Aug 20256210 AMAQI
4th Aug 20256311 AMAQI
4th Aug 20256212 PMAQI
4th Aug 2025601 PMAQI
4th Aug 2025622 PMAQI
4th Aug 2025603 PMAQI
4th Aug 2025624 PMAQI
4th Aug 2025665 PMAQI
4th Aug 2025646 PMAQI
4th Aug 2025597 PMAQI
4th Aug 2025628 PMAQI
4th Aug 2025699 PMAQI
4th Aug 20256510 PMAQI
4th Aug 20256411 PMAQI
5th Aug 20256512 AMAQI
5th Aug 2025651 AMAQI
5th Aug 2025672 AMAQI
5th Aug 2025673 AMAQI
5th Aug 2025664 AMAQI
25°C19/33°C
5th Aug 2025655 AMAQI
5th Aug 2025666 AMAQI
5th Aug 2025647 AMAQI
5th Aug 2025648 AMAQI
5th Aug 2025669 AMAQI
5th Aug 20257410 AMAQI
5th Aug 20256711 AMAQI
5th Aug 20256612 PMAQI
5th Aug 2025651 PMAQI
5th Aug 2025672 PMAQI
5th Aug 2025643 PMAQI
5th Aug 2025604 PMAQI
5th Aug 2025625 PMAQI
5th Aug 2025596 PMAQI
5th Aug 2025667 PMAQI
5th Aug 2025628 PMAQI
5th Aug 2025589 PMAQI
5th Aug 20256010 PMAQI
5th Aug 20256411 PMAQI
6th Aug 20256412 AMAQI
6th Aug 2025631 AMAQI
6th Aug 2025642 AMAQI
6th Aug 2025633 AMAQI
6th Aug 2025624 AMAQI
26°C19/35°C
6th Aug 2025625 AMAQI
6th Aug 2025666 AMAQI
6th Aug 2025677 AMAQI
6th Aug 2025718 AMAQI
6th Aug 2025679 AMAQI
6th Aug 20256810 AMAQI
6th Aug 20256711 AMAQI
6th Aug 20256712 PMAQI
6th Aug 2025701 PMAQI
6th Aug 2025662 PMAQI
6th Aug 2025673 PMAQI
6th Aug 2025684 PMAQI
6th Aug 2025685 PMAQI
6th Aug 2025686 PMAQI
6th Aug 2025637 PMAQI
6th Aug 2025668 PMAQI
6th Aug 2025679 PMAQI
6th Aug 20256810 PMAQI
6th Aug 20256611 PMAQI
7th Aug 20256112 AMAQI
7th Aug 2025611 AMAQI
7th Aug 2025632 AMAQI
7th Aug 2025633 AMAQI
7th Aug 2025624 AMAQI
28°C20/37°C
7th Aug 2025625 AMAQI
7th Aug 2025646 AMAQI
7th Aug 2025627 AMAQI
7th Aug 2025628 AMAQI
7th Aug 2025619 AMAQI
7th Aug 20256210 AMAQI
7th Aug 20256111 AMAQI
7th Aug 20256412 PMAQI
7th Aug 2025621 PMAQI
7th Aug 2025622 PMAQI
7th Aug 2025623 PMAQI
7th Aug 2025584 PMAQI
7th Aug 2025555 PMAQI
7th Aug 2025536 PMAQI
7th Aug 2025607 PMAQI
7th Aug 2025618 PMAQI
7th Aug 2025549 PMAQI
7th Aug 20255510 PMAQI
7th Aug 20255511 PMAQI
8th Aug 20255612 AMAQI
8th Aug 2025561 AMAQI
8th Aug 2025582 AMAQI
8th Aug 2025583 AMAQI
8th Aug 2025544 AMAQI
30°C23/39°C
8th Aug 2025545 AMAQI
8th Aug 2025546 AMAQI
8th Aug 2025587 AMAQI
8th Aug 2025578 AMAQI
8th Aug 2025589 AMAQI
8th Aug 20255810 AMAQI
8th Aug 20256411 AMAQI
8th Aug 20256012 PMAQI
8th Aug 2025581 PMAQI
8th Aug 2025582 PMAQI
8th Aug 2025563 PMAQI
8th Aug 2025544 PMAQI
8th Aug 2025545 PMAQI
8th Aug 2025526 PMAQI
8th Aug 2025567 PMAQI
8th Aug 2025548 PMAQI
8th Aug 2025549 PMAQI
8th Aug 20255510 PMAQI
8th Aug 20255511 PMAQI
9th Aug 20255612 AMAQI
9th Aug 2025571 AMAQI
9th Aug 2025592 AMAQI
9th Aug 2025633 AMAQI
9th Aug 2025564 AMAQI
30°C24/38°C
9th Aug 2025605 AMAQI
9th Aug 2025566 AMAQI
9th Aug 2025547 AMAQI
9th Aug 2025558 AMAQI
9th Aug 2025569 AMAQI
9th Aug 20255610 AMAQI
9th Aug 20255711 AMAQI
9th Aug 20255812 PMAQI
9th Aug 2025621 PMAQI
9th Aug 2025602 PMAQI
9th Aug 2025613 PMAQI
9th Aug 2025624 PMAQI
9th Aug 2025615 PMAQI
9th Aug 2025596 PMAQI
9th Aug 2025587 PMAQI
9th Aug 2025588 PMAQI
9th Aug 2025589 PMAQI
9th Aug 20255510 PMAQI
9th Aug 20255611 PMAQI
10th Aug 20255412 AMAQI
10th Aug 2025541 AMAQI
10th Aug 2025552 AMAQI
10th Aug 2025543 AMAQI
10th Aug 2025504 AMAQI
28°C21/37°C
10th Aug 2025605 AMAQI
10th Aug 2025596 AMAQI
10th Aug 2025657 AMAQI
10th Aug 2025608 AMAQI
10th Aug 2025569 AMAQI
10th Aug 20255510 AMAQI
10th Aug 20255611 AMAQI
10th Aug 20255712 PMAQI
10th Aug 2025591 PMAQI
10th Aug 2025582 PMAQI
10th Aug 2025583 PMAQI
10th Aug 2025584 PMAQI
10th Aug 2025585 PMAQI
10th Aug 2025606 PMAQI
10th Aug 2025597 PMAQI
10th Aug 2025608 PMAQI
10th Aug 2025629 PMAQI
10th Aug 20256210 PMAQI
10th Aug 20256111 PMAQI
11th Aug 20256012 AMAQI
11th Aug 2025591 AMAQI
11th Aug 2025602 AMAQI
11th Aug 2025593 AMAQI
11th Aug 2025604 AMAQI
27°C21/35°C
11th Aug 2025625 AMAQI
11th Aug 2025626 AMAQI
11th Aug 2025597 AMAQI
11th Aug 2025588 AMAQI
11th Aug 2025589 AMAQI
11th Aug 20256110 AMAQI
11th Aug 20256011 AMAQI
11th Aug 20256212 PMAQI
11th Aug 2025601 PMAQI
11th Aug 2025602 PMAQI
11th Aug 2025583 PMAQI
11th Aug 2025594 PMAQI
11th Aug 2025595 PMAQI
11th Aug 2025616 PMAQI
11th Aug 2025587 PMAQI
11th Aug 2025588 PMAQI
11th Aug 2025569 PMAQI
11th Aug 20255610 PMAQI
11th Aug 20255511 PMAQI
12th Aug 20255512 AMAQI
12th Aug 2025551 AMAQI
12th Aug 2025542 AMAQI
12th Aug 2025553 AMAQI
12th Aug 2025544 AMAQI
26°C20/33°C
12th Aug 2025525 AMAQI
5 AM12th Aug 2025526 AMAQI
12th Aug 2025607 AMAQI
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 PM
47AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
5 AM - 7 PM
47AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 PM (Avg. 47), while the lowest AQI was between 5 AM to 7 PM (Avg. 47).
Night time
Avg. Highest Time
8 PM - 11 PM
47AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM - 4 AM
45AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 47), while the lowest AQI was between 12 AM to 4 AM (Avg. 45).
2025 Days Vs Air Quality
Upland, California, United States
2025
70%
157
30%
66
Total number of days with different AQI categories in last 224 days in 2025 (141 days remaining)
Good
157 DaysModerate
66 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 224 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
Upland, California, 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
97AQI
97AQI
2nd January 2025
68AQI
68AQI
3rd January 2025
55AQI
55AQI
4th January 2025
77AQI
77AQI
5th January 2025
44AQI
44AQI
6th January 2025
40AQI
40AQI
7th January 2025
50AQI
50AQI
8th January 2025
61AQI
61AQI
9th January 2025
49AQI
49AQI
10th January 2025
53AQI
53AQI
11th January 2025
62AQI
62AQI
12th January 2025
31AQI
31AQI
13th January 2025
33AQI
33AQI
14th January 2025
30AQI
30AQI
15th January 2025
29AQI
29AQI
16th January 2025
30AQI
30AQI
17th January 2025
40AQI
40AQI
18th January 2025
55AQI
55AQI
19th January 2025
63AQI
63AQI
20th January 2025
55AQI
55AQI
21st January 2025
31AQI
31AQI
22nd January 2025
36AQI
36AQI
23rd January 2025
34AQI
34AQI
24th January 2025
36AQI
36AQI
25th January 2025
50AQI
50AQI
26th January 2025
34AQI
34AQI
27th January 2025
33AQI
33AQI
28th January 2025
45AQI
45AQI
29th January 2025
49AQI
49AQI
30th January 2025
58AQI
58AQI
31st January 2025
61AQI
61AQI
1st February 2025
67AQI
67AQI
2nd February 2025
72AQI
72AQI
3rd February 2025
66AQI
66AQI
4th February 2025
49AQI
49AQI
5th February 2025
25AQI
25AQI
6th February 2025
32AQI
32AQI
7th February 2025
23AQI
23AQI
8th February 2025
30AQI
30AQI
9th February 2025
43AQI
43AQI
10th February 2025
41AQI
41AQI
11th February 2025
31AQI
31AQI
12th February 2025
30AQI
30AQI
13th February 2025
24AQI
24AQI
14th February 2025
27AQI
27AQI
15th February 2025
30AQI
30AQI
16th February 2025
34AQI
34AQI
17th February 2025
43AQI
43AQI
18th February 2025
40AQI
40AQI
19th February 2025
44AQI
44AQI
20th February 2025
45AQI
45AQI
21st February 2025
31AQI
31AQI
22nd February 2025
35AQI
35AQI
23rd February 2025
43AQI
43AQI
24th February 2025
47AQI
47AQI
25th February 2025
46AQI
46AQI
26th February 2025
40AQI
40AQI
27th February 2025
30AQI
30AQI
28th February 2025
33AQI
33AQI
1st March 2025
40AQI
40AQI
2nd March 2025
34AQI
34AQI
3rd March 2025
26AQI
26AQI
4th March 2025
31AQI
31AQI
5th March 2025
43AQI
43AQI
6th March 2025
28AQI
28AQI
7th March 2025
27AQI
27AQI
8th March 2025
33AQI
33AQI
9th March 2025
37AQI
37AQI
10th March 2025
33AQI
33AQI
11th March 2025
29AQI
29AQI
12th March 2025
27AQI
27AQI
13th March 2025
20AQI
20AQI
14th March 2025
24AQI
24AQI
15th March 2025
29AQI
29AQI
16th March 2025
40AQI
40AQI
17th March 2025
39AQI
39AQI
18th March 2025
22AQI
22AQI
19th March 2025
22AQI
22AQI
20th March 2025
24AQI
24AQI
21st March 2025
31AQI
31AQI
22nd March 2025
36AQI
36AQI
23rd March 2025
43AQI
43AQI
24th March 2025
44AQI
44AQI
25th March 2025
47AQI
47AQI
26th March 2025
46AQI
46AQI
27th March 2025
34AQI
34AQI
28th March 2025
30AQI
30AQI
29th March 2025
34AQI
34AQI
30th March 2025
36AQI
36AQI
31st March 2025
25AQI
25AQI
1st April 2025
24AQI
24AQI
2nd April 2025
30AQI
30AQI
3rd April 2025
27AQI
27AQI
4th April 2025
26AQI
26AQI
5th April 2025
25AQI
25AQI
6th April 2025
25AQI
25AQI
7th April 2025
30AQI
30AQI
8th April 2025
42AQI
42AQI
9th April 2025
46AQI
46AQI
10th April 2025
50AQI
50AQI
11th April 2025
51AQI
51AQI
12th April 2025
50AQI
50AQI
13th April 2025
54AQI
54AQI
14th April 2025
52AQI
52AQI
15th April 2025
53AQI
53AQI
16th April 2025
39AQI
39AQI
17th April 2025
31AQI
31AQI
18th April 2025
30AQI
30AQI
19th April 2025
33AQI
33AQI
20th April 2025
38AQI
38AQI
21st April 2025
43AQI
43AQI
22nd April 2025
53AQI
53AQI
23rd April 2025
47AQI
47AQI
24th April 2025
41AQI
41AQI
25th April 2025
39AQI
39AQI
26th April 2025
25AQI
25AQI
27th April 2025
20AQI
20AQI
28th April 2025
24AQI
24AQI
29th April 2025
36AQI
36AQI
30th April 2025
44AQI
44AQI
1st May 2025
48AQI
48AQI
2nd May 2025
47AQI
47AQI
3rd May 2025
46AQI
46AQI
4th May 2025
24AQI
24AQI
5th May 2025
30AQI
30AQI
6th May 2025
37AQI
37AQI
7th May 2025
35AQI
35AQI
8th May 2025
46AQI
46AQI
9th May 2025
43AQI
43AQI
10th May 2025
41AQI
41AQI
11th May 2025
38AQI
38AQI
12th May 2025
47AQI
47AQI
13th May 2025
27AQI
27AQI
14th May 2025
31AQI
31AQI
15th May 2025
44AQI
44AQI
16th May 2025
50AQI
50AQI
17th May 2025
43AQI
43AQI
18th May 2025
40AQI
40AQI
19th May 2025
40AQI
40AQI
20th May 2025
48AQI
48AQI
21st May 2025
50AQI
50AQI
22nd May 2025
55AQI
55AQI
23rd May 2025
56AQI
56AQI
24th May 2025
53AQI
53AQI
25th May 2025
51AQI
51AQI
26th May 2025
51AQI
51AQI
27th May 2025
52AQI
52AQI
28th May 2025
50AQI
50AQI
29th May 2025
49AQI
49AQI
30th May 2025
50AQI
50AQI
31st May 2025
51AQI
51AQI
1st June 2025
46AQI
46AQI
2nd June 2025
36AQI
36AQI
3rd June 2025
39AQI
39AQI
4th June 2025
44AQI
44AQI
5th June 2025
46AQI
46AQI
6th June 2025
45AQI
45AQI
7th June 2025
50AQI
50AQI
8th June 2025
49AQI
49AQI
9th June 2025
49AQI
49AQI
10th June 2025
53AQI
53AQI
11th June 2025
54AQI
54AQI
12th June 2025
54AQI
54AQI
13th June 2025
54AQI
54AQI
14th June 2025
54AQI
54AQI
15th June 2025
53AQI
53AQI
16th June 2025
56AQI
56AQI
17th June 2025
58AQI
58AQI
18th June 2025
57AQI
57AQI
19th June 2025
57AQI
57AQI
20th June 2025
56AQI
56AQI
21st June 2025
53AQI
53AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
52AQI
52AQI
24th June 2025
53AQI
53AQI
25th June 2025
51AQI
51AQI
26th June 2025
53AQI
53AQI
27th June 2025
54AQI
54AQI
28th June 2025
49AQI
49AQI
29th June 2025
46AQI
46AQI
30th June 2025
41AQI
41AQI
1st July 2025
51AQI
51AQI
2nd July 2025
51AQI
51AQI
3rd July 2025
48AQI
48AQI
4th July 2025
48AQI
48AQI
5th July 2025
82AQI
82AQI
6th July 2025
56AQI
56AQI
7th July 2025
52AQI
52AQI
8th July 2025
54AQI
54AQI
9th July 2025
49AQI
49AQI
10th July 2025
47AQI
47AQI
11th July 2025
53AQI
53AQI
12th July 2025
55AQI
55AQI
13th July 2025
52AQI
52AQI
14th July 2025
48AQI
48AQI
15th July 2025
45AQI
45AQI
16th July 2025
44AQI
44AQI
17th July 2025
34AQI
34AQI
18th July 2025
38AQI
38AQI
19th July 2025
39AQI
39AQI
20th July 2025
43AQI
43AQI
21st July 2025
44AQI
44AQI
22nd July 2025
35AQI
35AQI
23rd July 2025
32AQI
32AQI
24th July 2025
32AQI
32AQI
25th July 2025
27AQI
27AQI
26th July 2025
27AQI
27AQI
27th July 2025
31AQI
31AQI
28th July 2025
33AQI
33AQI
29th July 2025
37AQI
37AQI
30th July 2025
42AQI
42AQI
31st July 2025
51AQI
51AQI
1st August 2025
52AQI
52AQI
2nd August 2025
53AQI
53AQI
3rd August 2025
55AQI
55AQI
4th August 2025
61AQI
61AQI
5th August 2025
64AQI
64AQI
6th August 2025
66AQI
66AQI
7th August 2025
60AQI
60AQI
8th August 2025
56AQI
56AQI
9th August 2025
58AQI
58AQI
10th August 2025
58AQI
58AQI
11th August 2025
60AQI
60AQI
48AQI
39AQI
33AQI
38AQI
44AQI
51AQI
45AQI
58AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202543AQI
19
12
25
3
31
25
5
24
7
12
18
21
10
11
157
66
Highest AQI recorded in
August58AQI
Lowest AQI recorded in
March33AQI
202450AQI
13
3
1
1
12
23
6
21
10
24
7
3
21
3
1
14
15
2
27
3
13
18
152
83
5
1
Highest AQI recorded in
September75AQI
Lowest AQI recorded in
April21AQI
202336AQI
28
2
26
2
28
3
1
3
25
6
110
14
Highest AQI recorded in
April54AQI
Lowest AQI recorded in
November26AQI
202242AQI
25
5
20
2
31
21
9
14
17
16
14
18
6
1
1
19
10
16
14
1
28
2
24
7
233
87
1
Highest AQI recorded in
October53AQI
Lowest AQI recorded in
February30AQI
202145AQI
26
4
23
5
30
1
23
7
18
12
21
9
13
17
1
13
18
11
19
26
5
13
14
3
18
10
3
235
121
7
Highest AQI recorded in
November61AQI
Lowest AQI recorded in
March28AQI
202045AQI
12
20
9
14
13
9
17
14
5
20
4
1
8
22
1
20
10
26
5
144
80
5
1
Highest AQI recorded in
September72AQI
Lowest AQI recorded in
May17AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2024(Avg.)
50AQILeast Polluted Year Recorded
2023(Avg.)
36AQIUpland's annual 2025 AQI (43) shows an average percentage change of -0.05% (improved AQI) compared to previous years: 2020 (45), 2021 (45), 2022 (42), 2023 (36), 2024 (50).
