City Center, Dayan, Yunnan, China 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
City Center, Dayan, Yunnan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2022
70AQILowest AQI recorded on
18th Aug 2021
20AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 51 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Aug - 6th Aug 2025
City Center, Dayan, Yunnan, China
AQI
Day
Night
.
5 AM5th Aug 2025
7 PM
4 AM6th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
9PM5th Aug
59AQI
Avg. Lowest Time
4PM5th Aug
41AQI
In the last 24 hours,
City Center's AQI reached its highest point of 59 at 9 PM during the Night, while the lowest point, 41, was recorded at 4 PM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
City Center, Dayan, Yunnan, China
JulAug
07th - 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 - 05th05th - 06th06th
Day
Night
7th Jul 2025485 AMAQI
7th Jul 2025486 AMAQI
7th Jul 2025497 AMAQI
7th Jul 2025398 AMAQI
7th Jul 2025229 AMAQI
7th Jul 20253010 AMAQI
7th Jul 20253511 AMAQI
7th Jul 20254512 PMAQI
7th Jul 2025381 PMAQI
7th Jul 2025372 PMAQI
7th Jul 2025353 PMAQI
7th Jul 2025454 PMAQI
7th Jul 2025395 PMAQI
7th Jul 2025386 PMAQI
7th Jul 2025377 PMAQI
7th Jul 2025458 PMAQI
7th Jul 2025479 PMAQI
7th Jul 20254910 PMAQI
7th Jul 20255111 PMAQI
8th Jul 20254612 AMAQI
8th Jul 2025501 AMAQI
8th Jul 2025482 AMAQI
8th Jul 2025483 AMAQI
8th Jul 2025464 AMAQI
14°C13/17°C
8th Jul 2025465 AMAQI
8th Jul 2025486 AMAQI
8th Jul 2025477 AMAQI
8th Jul 2025318 AMAQI
8th Jul 2025309 AMAQI
8th Jul 20253210 AMAQI
8th Jul 20253511 AMAQI
8th Jul 20253212 PMAQI
8th Jul 2025301 PMAQI
8th Jul 2025302 PMAQI
8th Jul 2025343 PMAQI
8th Jul 2025294 PMAQI
8th Jul 2025315 PMAQI
8th Jul 2025426 PMAQI
8th Jul 2025557 PMAQI
8th Jul 2025428 PMAQI
8th Jul 2025479 PMAQI
8th Jul 20254910 PMAQI
8th Jul 20254911 PMAQI
9th Jul 20255012 AMAQI
9th Jul 2025481 AMAQI
9th Jul 2025482 AMAQI
9th Jul 2025483 AMAQI
9th Jul 2025444 AMAQI
16°C11/22°C
9th Jul 2025445 AMAQI
9th Jul 2025466 AMAQI
9th Jul 2025457 AMAQI
9th Jul 2025308 AMAQI
9th Jul 2025369 AMAQI
9th Jul 20254810 AMAQI
9th Jul 20252411 AMAQI
9th Jul 20253212 PMAQI
9th Jul 2025321 PMAQI
9th Jul 2025302 PMAQI
9th Jul 2025293 PMAQI
9th Jul 2025314 PMAQI
9th Jul 2025355 PMAQI
9th Jul 2025396 PMAQI
9th Jul 2025457 PMAQI
9th Jul 2025478 PMAQI
9th Jul 2025499 PMAQI
9th Jul 20254810 PMAQI
9th Jul 20255011 PMAQI
10th Jul 20255112 AMAQI
10th Jul 2025471 AMAQI
10th Jul 2025482 AMAQI
10th Jul 2025473 AMAQI
10th Jul 2025474 AMAQI
18°C12/26°C
10th Jul 2025465 AMAQI
10th Jul 2025466 AMAQI
10th Jul 2025457 AMAQI
10th Jul 2025288 AMAQI
10th Jul 2025349 AMAQI
10th Jul 20253810 AMAQI
10th Jul 20253411 AMAQI
10th Jul 20253512 PMAQI
10th Jul 2025351 PMAQI
10th Jul 2025342 PMAQI
10th Jul 2025393 PMAQI
10th Jul 2025424 PMAQI
10th Jul 2025415 PMAQI
10th Jul 2025396 PMAQI
10th Jul 2025447 PMAQI
10th Jul 2025528 PMAQI
10th Jul 2025529 PMAQI
10th Jul 20255210 PMAQI
10th Jul 20255211 PMAQI
11th Jul 20255312 AMAQI
11th Jul 2025491 AMAQI
11th Jul 2025492 AMAQI
11th Jul 2025463 AMAQI
11th Jul 2025454 AMAQI
19°C12/28°C
11th Jul 2025455 AMAQI
11th Jul 2025456 AMAQI
11th Jul 2025467 AMAQI
11th Jul 2025468 AMAQI
11th Jul 2025539 AMAQI
11th Jul 20254610 AMAQI
11th Jul 20254411 AMAQI
11th Jul 20254812 PMAQI
11th Jul 2025471 PMAQI
11th Jul 2025422 PMAQI
11th Jul 2025393 PMAQI
11th Jul 2025454 PMAQI
11th Jul 2025495 PMAQI
11th Jul 2025506 PMAQI
11th Jul 2025527 PMAQI
11th Jul 2025528 PMAQI
11th Jul 2025539 PMAQI
11th Jul 20255510 PMAQI
11th Jul 20255711 PMAQI
12th Jul 20255612 AMAQI
12th Jul 2025511 AMAQI
12th Jul 2025502 AMAQI
12th Jul 2025483 AMAQI
12th Jul 2025484 AMAQI
19°C13/27°C
12th Jul 2025485 AMAQI
12th Jul 2025486 AMAQI
12th Jul 2025487 AMAQI
12th Jul 2025368 AMAQI
12th Jul 2025299 AMAQI
12th Jul 20253010 AMAQI
12th Jul 20253111 AMAQI
12th Jul 20254312 PMAQI
12th Jul 2025421 PMAQI
12th Jul 2025442 PMAQI
12th Jul 2025463 PMAQI
12th Jul 2025464 PMAQI
12th Jul 2025465 PMAQI
12th Jul 2025446 PMAQI
12th Jul 2025447 PMAQI
12th Jul 2025508 PMAQI
12th Jul 2025529 PMAQI
12th Jul 20255310 PMAQI
12th Jul 20255411 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025521 AMAQI
13th Jul 2025522 AMAQI
13th Jul 2025513 AMAQI
13th Jul 2025504 AMAQI
17°C14/24°C
13th Jul 2025525 AMAQI
13th Jul 2025526 AMAQI
13th Jul 2025527 AMAQI
13th Jul 2025568 AMAQI
13th Jul 2025579 AMAQI
13th Jul 20255210 AMAQI
13th Jul 20254611 AMAQI
13th Jul 20255412 PMAQI
13th Jul 2025541 PMAQI
13th Jul 2025512 PMAQI
13th Jul 2025513 PMAQI
13th Jul 2025524 PMAQI
13th Jul 2025505 PMAQI
13th Jul 2025466 PMAQI
13th Jul 2025487 PMAQI
13th Jul 2025538 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255510 PMAQI
13th Jul 20255511 PMAQI
14th Jul 20255612 AMAQI
14th Jul 2025521 AMAQI
14th Jul 2025522 AMAQI
14th Jul 2025533 AMAQI
14th Jul 2025524 AMAQI
18°C12/26°C
14th Jul 2025525 AMAQI
14th Jul 2025526 AMAQI
14th Jul 2025527 AMAQI
14th Jul 2025548 AMAQI
14th Jul 2025569 AMAQI
14th Jul 20255610 AMAQI
14th Jul 20255411 AMAQI
14th Jul 20255512 PMAQI
14th Jul 2025541 PMAQI
14th Jul 2025542 PMAQI
14th Jul 2025613 PMAQI
14th Jul 2025554 PMAQI
14th Jul 2025565 PMAQI
14th Jul 2025606 PMAQI
14th Jul 2025567 PMAQI
14th Jul 2025588 PMAQI
14th Jul 2025609 PMAQI
14th Jul 20256010 PMAQI
14th Jul 20255911 PMAQI
15th Jul 20255812 AMAQI
15th Jul 2025541 AMAQI
15th Jul 2025542 AMAQI
15th Jul 2025543 AMAQI
15th Jul 2025544 AMAQI
19°C13/26°C
15th Jul 2025545 AMAQI
15th Jul 2025546 AMAQI
15th Jul 2025547 AMAQI
15th Jul 2025428 AMAQI
15th Jul 2025229 AMAQI
15th Jul 20252210 AMAQI
15th Jul 20252511 AMAQI
15th Jul 20253712 PMAQI
15th Jul 2025421 PMAQI
15th Jul 2025482 PMAQI
15th Jul 2025473 PMAQI
15th Jul 2025444 PMAQI
15th Jul 2025385 PMAQI
15th Jul 2025386 PMAQI
15th Jul 2025507 PMAQI
15th Jul 2025568 PMAQI
15th Jul 2025589 PMAQI
15th Jul 20256010 PMAQI
15th Jul 20255911 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025561 AMAQI
16th Jul 2025562 AMAQI
16th Jul 2025563 AMAQI
16th Jul 2025544 AMAQI
19°C14/28°C
16th Jul 2025545 AMAQI
16th Jul 2025546 AMAQI
16th Jul 2025547 AMAQI
16th Jul 2025468 AMAQI
16th Jul 2025519 AMAQI
16th Jul 20255210 AMAQI
16th Jul 20255111 AMAQI
16th Jul 20255712 PMAQI
16th Jul 2025571 PMAQI
16th Jul 2025612 PMAQI
16th Jul 2025593 PMAQI
16th Jul 2025594 PMAQI
16th Jul 2025585 PMAQI
16th Jul 2025556 PMAQI
16th Jul 2025567 PMAQI
16th Jul 2025568 PMAQI
16th Jul 2025579 PMAQI
16th Jul 20255910 PMAQI
16th Jul 20256311 PMAQI
17th Jul 20256012 AMAQI
17th Jul 2025571 AMAQI
17th Jul 2025582 AMAQI
17th Jul 2025573 AMAQI
17th Jul 2025554 AMAQI
19°C13/28°C
17th Jul 2025555 AMAQI
17th Jul 2025556 AMAQI
17th Jul 2025557 AMAQI
17th Jul 2025588 AMAQI
17th Jul 2025609 AMAQI
17th Jul 20255510 AMAQI
17th Jul 20255411 AMAQI
17th Jul 20255712 PMAQI
17th Jul 2025571 PMAQI
17th Jul 2025562 PMAQI
17th Jul 2025553 PMAQI
17th Jul 2025554 PMAQI
17th Jul 2025565 PMAQI
17th Jul 2025566 PMAQI
17th Jul 2025567 PMAQI
17th Jul 2025588 PMAQI
17th Jul 2025609 PMAQI
17th Jul 20256110 PMAQI
17th Jul 20256111 PMAQI
18th Jul 20256212 AMAQI
18th Jul 2025561 AMAQI
18th Jul 2025582 AMAQI
18th Jul 2025583 AMAQI
18th Jul 2025564 AMAQI
20°C13/28°C
18th Jul 2025565 AMAQI
18th Jul 2025566 AMAQI
18th Jul 2025567 AMAQI
18th Jul 2025568 AMAQI
18th Jul 2025629 AMAQI
18th Jul 20256310 AMAQI
18th Jul 20256211 AMAQI
18th Jul 20256312 PMAQI
18th Jul 2025621 PMAQI
18th Jul 2025592 PMAQI
18th Jul 2025583 PMAQI
18th Jul 2025534 PMAQI
18th Jul 2025545 PMAQI
18th Jul 2025566 PMAQI
18th Jul 2025577 PMAQI
18th Jul 2025588 PMAQI
18th Jul 2025599 PMAQI
18th Jul 20256210 PMAQI
18th Jul 20256111 PMAQI
19th Jul 20256012 AMAQI
19th Jul 2025581 AMAQI
19th Jul 2025582 AMAQI
19th Jul 2025583 AMAQI
19th Jul 2025584 AMAQI
20°C14/27°C
19th Jul 2025585 AMAQI
19th Jul 2025586 AMAQI
19th Jul 2025587 AMAQI
19th Jul 2025458 AMAQI
19th Jul 2025489 AMAQI
19th Jul 20254310 AMAQI
19th Jul 20253911 AMAQI
19th Jul 20253412 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025302 PMAQI
19th Jul 2025343 PMAQI
19th Jul 2025364 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025226 PMAQI
19th Jul 2025427 PMAQI
19th Jul 2025508 PMAQI
19th Jul 2025489 PMAQI
19th Jul 20256010 PMAQI
19th Jul 20256411 PMAQI
20th Jul 20256212 AMAQI
20th Jul 2025571 AMAQI
20th Jul 2025562 AMAQI
20th Jul 2025563 AMAQI
20th Jul 2025544 AMAQI
16°C14/20°C
20th Jul 2025545 AMAQI
20th Jul 2025546 AMAQI
20th Jul 2025547 AMAQI
20th Jul 2025538 AMAQI
20th Jul 2025569 AMAQI
20th Jul 20255310 AMAQI
20th Jul 20255111 AMAQI
20th Jul 20255212 PMAQI
20th Jul 2025521 PMAQI
20th Jul 2025402 PMAQI
20th Jul 2025363 PMAQI
20th Jul 2025364 PMAQI
20th Jul 2025385 PMAQI
20th Jul 2025406 PMAQI
20th Jul 2025407 PMAQI
20th Jul 2025508 PMAQI
20th Jul 2025539 PMAQI
20th Jul 20255710 PMAQI
20th Jul 20255911 PMAQI
21st Jul 20255612 AMAQI
21st Jul 2025561 AMAQI
21st Jul 2025552 AMAQI
21st Jul 2025563 AMAQI
21st Jul 2025554 AMAQI
18°C12/26°C
21st Jul 2025555 AMAQI
21st Jul 2025556 AMAQI
21st Jul 2025557 AMAQI
21st Jul 2025438 AMAQI
21st Jul 2025439 AMAQI
21st Jul 20254410 AMAQI
21st Jul 20254611 AMAQI
21st Jul 20254212 PMAQI
21st Jul 2025361 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025223 PMAQI
21st Jul 2025284 PMAQI
21st Jul 2025315 PMAQI
21st Jul 2025356 PMAQI
21st Jul 2025437 PMAQI
21st Jul 2025508 PMAQI
21st Jul 2025519 PMAQI
21st Jul 20255410 PMAQI
21st Jul 20255611 PMAQI
22nd Jul 20255812 AMAQI
22nd Jul 2025551 AMAQI
22nd Jul 2025562 AMAQI
22nd Jul 2025553 AMAQI
22nd Jul 2025534 AMAQI
19°C13/28°C
22nd Jul 2025525 AMAQI
22nd Jul 2025536 AMAQI
22nd Jul 2025537 AMAQI
22nd Jul 2025428 AMAQI
22nd Jul 2025349 AMAQI
22nd Jul 20253510 AMAQI
22nd Jul 20253411 AMAQI
22nd Jul 20253712 PMAQI
22nd Jul 2025511 PMAQI
22nd Jul 2025482 PMAQI
22nd Jul 2025293 PMAQI
22nd Jul 2025304 PMAQI
22nd Jul 2025315 PMAQI
22nd Jul 2025296 PMAQI
22nd Jul 2025347 PMAQI
22nd Jul 2025468 PMAQI
22nd Jul 2025519 PMAQI
22nd Jul 20255110 PMAQI
22nd Jul 20255311 PMAQI
23rd Jul 20255512 AMAQI
23rd Jul 2025551 AMAQI
23rd Jul 2025542 AMAQI
23rd Jul 2025543 AMAQI
23rd Jul 2025524 AMAQI
19°C13/28°C
23rd Jul 2025525 AMAQI
23rd Jul 2025526 AMAQI
23rd Jul 2025527 AMAQI
23rd Jul 2025328 AMAQI
23rd Jul 2025339 AMAQI
23rd Jul 20253810 AMAQI
23rd Jul 20253411 AMAQI
23rd Jul 20252012 PMAQI
23rd Jul 2025241 PMAQI
23rd Jul 2025302 PMAQI
23rd Jul 2025333 PMAQI
23rd Jul 2025414 PMAQI
23rd Jul 2025355 PMAQI
23rd Jul 2025286 PMAQI
23rd Jul 2025287 PMAQI
23rd Jul 2025458 PMAQI
23rd Jul 2025489 PMAQI
23rd Jul 20255010 PMAQI
23rd Jul 20255111 PMAQI
24th Jul 20254912 AMAQI
24th Jul 2025481 AMAQI
24th Jul 2025522 AMAQI
24th Jul 2025523 AMAQI
24th Jul 2025504 AMAQI
18°C13/26°C
24th Jul 2025505 AMAQI
24th Jul 2025516 AMAQI
24th Jul 2025517 AMAQI
24th Jul 2025508 AMAQI
24th Jul 2025389 AMAQI
24th Jul 20253010 AMAQI
24th Jul 20252811 AMAQI
24th Jul 20252712 PMAQI
24th Jul 2025291 PMAQI
24th Jul 2025282 PMAQI
24th Jul 2025303 PMAQI
24th Jul 2025384 PMAQI
24th Jul 2025385 PMAQI
24th Jul 2025246 PMAQI
24th Jul 2025337 PMAQI
24th Jul 2025448 PMAQI
24th Jul 2025449 PMAQI
24th Jul 20254810 PMAQI
24th Jul 20255211 PMAQI
25th Jul 20255212 AMAQI
25th Jul 2025521 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025513 AMAQI
25th Jul 2025484 AMAQI
18°C15/24°C
25th Jul 2025485 AMAQI
25th Jul 2025476 AMAQI
25th Jul 2025477 AMAQI
25th Jul 2025398 AMAQI
25th Jul 2025319 AMAQI
25th Jul 20253310 AMAQI
25th Jul 20253211 AMAQI
25th Jul 20253612 PMAQI
25th Jul 2025291 PMAQI
25th Jul 2025282 PMAQI
25th Jul 2025263 PMAQI
25th Jul 2025354 PMAQI
25th Jul 2025365 PMAQI
25th Jul 2025356 PMAQI
25th Jul 2025437 PMAQI
25th Jul 2025528 PMAQI
25th Jul 2025539 PMAQI
25th Jul 20255610 PMAQI
25th Jul 20255811 PMAQI
26th Jul 20255512 AMAQI
26th Jul 2025491 AMAQI
26th Jul 2025502 AMAQI
26th Jul 2025493 AMAQI
26th Jul 2025464 AMAQI
18°C14/22°C
26th Jul 2025455 AMAQI
26th Jul 2025446 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025408 AMAQI
26th Jul 2025249 AMAQI
26th Jul 20252210 AMAQI
26th Jul 20252311 AMAQI
26th Jul 20252212 PMAQI
26th Jul 2025221 PMAQI
26th Jul 2025342 PMAQI
26th Jul 2025323 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025305 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025257 PMAQI
26th Jul 2025348 PMAQI
26th Jul 2025389 PMAQI
26th Jul 20254510 PMAQI
26th Jul 20254911 PMAQI
27th Jul 20255312 AMAQI
27th Jul 2025501 AMAQI
27th Jul 2025502 AMAQI
27th Jul 2025483 AMAQI
27th Jul 2025444 AMAQI
15°C14/17°C
27th Jul 2025445 AMAQI
27th Jul 2025446 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025338 AMAQI
27th Jul 2025209 AMAQI
27th Jul 20252510 AMAQI
27th Jul 20252411 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025192 PMAQI
27th Jul 2025203 PMAQI
27th Jul 2025284 PMAQI
27th Jul 2025305 PMAQI
27th Jul 2025316 PMAQI
27th Jul 2025297 PMAQI
27th Jul 2025358 PMAQI
27th Jul 2025399 PMAQI
27th Jul 20255310 PMAQI
27th Jul 20255211 PMAQI
28th Jul 20255212 AMAQI
28th Jul 2025501 AMAQI
28th Jul 2025492 AMAQI
28th Jul 2025463 AMAQI
28th Jul 2025424 AMAQI
17°C12/24°C
28th Jul 2025425 AMAQI
28th Jul 2025426 AMAQI
28th Jul 2025427 AMAQI
28th Jul 2025318 AMAQI
28th Jul 2025229 AMAQI
28th Jul 20252310 AMAQI
28th Jul 20252011 AMAQI
28th Jul 20253212 PMAQI
28th Jul 2025281 PMAQI
28th Jul 2025202 PMAQI
28th Jul 2025203 PMAQI
28th Jul 2025184 PMAQI
28th Jul 2025195 PMAQI
28th Jul 2025256 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025398 PMAQI
28th Jul 2025439 PMAQI
28th Jul 20255210 PMAQI
28th Jul 20255411 PMAQI
29th Jul 20255312 AMAQI
29th Jul 2025471 AMAQI
29th Jul 2025462 AMAQI
29th Jul 2025443 AMAQI
29th Jul 2025424 AMAQI
18°C11/26°C
29th Jul 2025425 AMAQI
29th Jul 2025426 AMAQI
29th Jul 2025417 AMAQI
29th Jul 2025448 AMAQI
29th Jul 2025509 AMAQI
29th Jul 20254010 AMAQI
29th Jul 20253611 AMAQI
29th Jul 20253812 PMAQI
29th Jul 2025321 PMAQI
29th Jul 2025302 PMAQI
29th Jul 2025203 PMAQI
29th Jul 2025334 PMAQI
29th Jul 2025395 PMAQI
29th Jul 2025376 PMAQI
29th Jul 2025417 PMAQI
29th Jul 2025458 PMAQI
29th Jul 2025529 PMAQI
29th Jul 20255410 PMAQI
29th Jul 20256011 PMAQI
30th Jul 20255712 AMAQI
30th Jul 2025461 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025453 AMAQI
30th Jul 2025444 AMAQI
19°C12/27°C
30th Jul 2025435 AMAQI
30th Jul 2025446 AMAQI
30th Jul 2025437 AMAQI
30th Jul 2025528 AMAQI
30th Jul 2025569 AMAQI
30th Jul 20255010 AMAQI
30th Jul 20255011 AMAQI
30th Jul 20254212 PMAQI
30th Jul 2025351 PMAQI
30th Jul 2025332 PMAQI
30th Jul 2025363 PMAQI
30th Jul 2025394 PMAQI
30th Jul 2025365 PMAQI
30th Jul 2025436 PMAQI
30th Jul 2025457 PMAQI
30th Jul 2025518 PMAQI
30th Jul 2025559 PMAQI
30th Jul 20255610 PMAQI
30th Jul 20255611 PMAQI
31st Jul 20255612 AMAQI
31st Jul 2025491 AMAQI
31st Jul 2025502 AMAQI
31st Jul 2025493 AMAQI
31st Jul 2025494 AMAQI
18°C13/25°C
31st Jul 2025495 AMAQI
31st Jul 2025496 AMAQI
31st Jul 2025497 AMAQI
31st Jul 2025498 AMAQI
31st Jul 2025499 AMAQI
31st Jul 20253810 AMAQI
31st Jul 20253311 AMAQI
31st Jul 20253612 PMAQI
31st Jul 2025371 PMAQI
31st Jul 2025242 PMAQI
31st Jul 2025283 PMAQI
31st Jul 2025274 PMAQI
31st Jul 2025285 PMAQI
31st Jul 2025296 PMAQI
31st Jul 2025357 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255810 PMAQI
31st Jul 20255511 PMAQI
1st Aug 20255612 AMAQI
1st Aug 2025521 AMAQI
1st Aug 2025542 AMAQI
1st Aug 2025543 AMAQI
1st Aug 2025534 AMAQI
17°C15/23°C
1st Aug 2025525 AMAQI
1st Aug 2025536 AMAQI
1st Aug 2025537 AMAQI
1st Aug 2025548 AMAQI
1st Aug 2025619 AMAQI
1st Aug 20256610 AMAQI
1st Aug 20256311 AMAQI
1st Aug 20255612 PMAQI
1st Aug 2025551 PMAQI
1st Aug 2025542 PMAQI
1st Aug 2025503 PMAQI
1st Aug 2025484 PMAQI
1st Aug 2025515 PMAQI
1st Aug 2025546 PMAQI
1st Aug 2025537 PMAQI
1st Aug 2025588 PMAQI
1st Aug 2025629 PMAQI
1st Aug 20256310 PMAQI
1st Aug 20256011 PMAQI
2nd Aug 20255812 AMAQI
2nd Aug 2025531 AMAQI
2nd Aug 2025532 AMAQI
2nd Aug 2025533 AMAQI
2nd Aug 2025544 AMAQI
19°C13/26°C
2nd Aug 2025545 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025547 AMAQI
2nd Aug 2025548 AMAQI
2nd Aug 2025489 AMAQI
2nd Aug 20256410 AMAQI
2nd Aug 20255211 AMAQI
2nd Aug 20255412 PMAQI
2nd Aug 2025541 PMAQI
2nd Aug 2025542 PMAQI
2nd Aug 2025623 PMAQI
2nd Aug 2025564 PMAQI
2nd Aug 2025535 PMAQI
2nd Aug 2025546 PMAQI
2nd Aug 2025607 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025569 PMAQI
2nd Aug 20256010 PMAQI
2nd Aug 20255811 PMAQI
3rd Aug 20256012 AMAQI
3rd Aug 2025531 AMAQI
3rd Aug 2025542 AMAQI
3rd Aug 2025563 AMAQI
3rd Aug 2025554 AMAQI
18°C13/25°C
3rd Aug 2025555 AMAQI
3rd Aug 2025556 AMAQI
3rd Aug 2025557 AMAQI
3rd Aug 2025568 AMAQI
3rd Aug 2025519 AMAQI
3rd Aug 20255210 AMAQI
3rd Aug 20254011 AMAQI
3rd Aug 20255112 PMAQI
3rd Aug 2025421 PMAQI
3rd Aug 2025492 PMAQI
3rd Aug 2025463 PMAQI
3rd Aug 2025464 PMAQI
3rd Aug 2025395 PMAQI
3rd Aug 2025466 PMAQI
3rd Aug 2025547 PMAQI
3rd Aug 2025538 PMAQI
3rd Aug 2025549 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255711 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025551 AMAQI
4th Aug 2025572 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025554 AMAQI
19°C13/25°C
4th Aug 2025555 AMAQI
4th Aug 2025556 AMAQI
4th Aug 2025557 AMAQI
4th Aug 2025348 AMAQI
4th Aug 2025499 AMAQI
4th Aug 20254710 AMAQI
4th Aug 20254411 AMAQI
4th Aug 20254512 PMAQI
4th Aug 2025461 PMAQI
4th Aug 2025372 PMAQI
4th Aug 2025393 PMAQI
4th Aug 2025464 PMAQI
4th Aug 2025435 PMAQI
4th Aug 2025566 PMAQI
4th Aug 2025587 PMAQI
4th Aug 2025568 PMAQI
4th Aug 2025579 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20255811 PMAQI
5th Aug 20255612 AMAQI
5th Aug 2025561 AMAQI
5th Aug 2025552 AMAQI
5th Aug 2025553 AMAQI
5th Aug 2025544 AMAQI
19°C14/26°C
5th Aug 2025545 AMAQI
5th Aug 2025546 AMAQI
5th Aug 2025547 AMAQI
5th Aug 2025428 AMAQI
5th Aug 2025549 AMAQI
5th Aug 20255110 AMAQI
5th Aug 20255511 AMAQI
5th Aug 20255012 PMAQI
5th Aug 2025541 PMAQI
5th Aug 2025502 PMAQI
5th Aug 2025463 PMAQI
5th Aug 2025414 PMAQI
5th Aug 2025475 PMAQI
5th Aug 2025486 PMAQI
5th Aug 2025537 PMAQI
5th Aug 2025548 PMAQI
5th Aug 2025599 PMAQI
5th Aug 20255810 PMAQI
5th Aug 20255511 PMAQI
6th Aug 20255612 AMAQI
6th Aug 2025551 AMAQI
6th Aug 2025562 AMAQI
6th Aug 2025553 AMAQI
6th Aug 2025554 AMAQI
--°C/°C
6th Aug 2025555 AMAQI
5 AM6th Aug 2025566 AMAQI
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
50AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
2 PM - 3 PM
39AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 50), while the lowest AQI was between 2 PM to 3 PM (Avg. 39).
Night time
Avg. Highest Time
10 PM - 11 PM
56AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
1 AM - 9 PM
51AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 56), while the lowest AQI was between 1 AM to 9 PM (Avg. 51).
2025 Days Vs Air Quality
City Center, Dayan, Yunnan, China
2025
35%
75
64%
139
0.9%
2
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
75 DaysModerate
139 DaysPoor
2 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 35%
Health Risk Level:
High
In 2025, 35% of 217 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
City Center, Dayan, Yunnan, China
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
63AQI
63AQI
2nd January 2025
62AQI
62AQI
3rd January 2025
74AQI
74AQI
4th January 2025
72AQI
72AQI
5th January 2025
80AQI
80AQI
6th January 2025
67AQI
67AQI
7th January 2025
55AQI
55AQI
8th January 2025
64AQI
64AQI
9th January 2025
55AQI
55AQI
10th January 2025
61AQI
61AQI
11th January 2025
66AQI
66AQI
12th January 2025
60AQI
60AQI
13th January 2025
54AQI
54AQI
14th January 2025
56AQI
56AQI
15th January 2025
70AQI
70AQI
16th January 2025
83AQI
83AQI
17th January 2025
63AQI
63AQI
18th January 2025
55AQI
55AQI
19th January 2025
57AQI
57AQI
20th January 2025
69AQI
69AQI
21st January 2025
86AQI
86AQI
22nd January 2025
75AQI
75AQI
23rd January 2025
64AQI
64AQI
24th January 2025
50AQI
50AQI
25th January 2025
50AQI
50AQI
26th January 2025
54AQI
54AQI
27th January 2025
66AQI
66AQI
28th January 2025
94AQI
94AQI
29th January 2025
78AQI
78AQI
30th January 2025
70AQI
70AQI
31st January 2025
59AQI
59AQI
1st February 2025
60AQI
60AQI
2nd February 2025
64AQI
64AQI
3rd February 2025
79AQI
79AQI
4th February 2025
78AQI
78AQI
5th February 2025
68AQI
68AQI
6th February 2025
65AQI
65AQI
7th February 2025
67AQI
67AQI
8th February 2025
59AQI
59AQI
9th February 2025
56AQI
56AQI
10th February 2025
57AQI
57AQI
11th February 2025
56AQI
56AQI
12th February 2025
60AQI
60AQI
13th February 2025
62AQI
62AQI
14th February 2025
52AQI
52AQI
15th February 2025
55AQI
55AQI
16th February 2025
51AQI
51AQI
17th February 2025
47AQI
47AQI
18th February 2025
51AQI
51AQI
19th February 2025
36AQI
36AQI
20th February 2025
35AQI
35AQI
21st February 2025
38AQI
38AQI
22nd February 2025
39AQI
39AQI
23rd February 2025
46AQI
46AQI
24th February 2025
42AQI
42AQI
25th February 2025
45AQI
45AQI
26th February 2025
29AQI
29AQI
27th February 2025
31AQI
31AQI
28th February 2025
38AQI
38AQI
1st March 2025
46AQI
46AQI
2nd March 2025
38AQI
38AQI
3rd March 2025
40AQI
40AQI
4th March 2025
48AQI
48AQI
5th March 2025
48AQI
48AQI
6th March 2025
60AQI
60AQI
7th March 2025
65AQI
65AQI
8th March 2025
71AQI
71AQI
9th March 2025
62AQI
62AQI
10th March 2025
61AQI
61AQI
11th March 2025
58AQI
58AQI
12th March 2025
64AQI
64AQI
13th March 2025
69AQI
69AQI
14th March 2025
77AQI
77AQI
15th March 2025
58AQI
58AQI
16th March 2025
79AQI
79AQI
17th March 2025
58AQI
58AQI
18th March 2025
73AQI
73AQI
19th March 2025
63AQI
63AQI
20th March 2025
77AQI
77AQI
21st March 2025
83AQI
83AQI
22nd March 2025
69AQI
69AQI
23rd March 2025
67AQI
67AQI
24th March 2025
60AQI
60AQI
25th March 2025
56AQI
56AQI
26th March 2025
50AQI
50AQI
27th March 2025
55AQI
55AQI
28th March 2025
71AQI
71AQI
29th March 2025
105AQI
105AQI
30th March 2025
98AQI
98AQI
31st March 2025
103AQI
103AQI
1st April 2025
96AQI
96AQI
2nd April 2025
95AQI
95AQI
3rd April 2025
91AQI
91AQI
4th April 2025
79AQI
79AQI
5th April 2025
80AQI
80AQI
6th April 2025
74AQI
74AQI
7th April 2025
77AQI
77AQI
8th April 2025
70AQI
70AQI
9th April 2025
65AQI
65AQI
10th April 2025
70AQI
70AQI
11th April 2025
61AQI
61AQI
12th April 2025
63AQI
63AQI
13th April 2025
55AQI
55AQI
14th April 2025
60AQI
60AQI
15th April 2025
62AQI
62AQI
16th April 2025
50AQI
50AQI
17th April 2025
54AQI
54AQI
18th April 2025
51AQI
51AQI
19th April 2025
52AQI
52AQI
20th April 2025
48AQI
48AQI
21st April 2025
43AQI
43AQI
22nd April 2025
46AQI
46AQI
23rd April 2025
53AQI
53AQI
24th April 2025
47AQI
47AQI
25th April 2025
66AQI
66AQI
26th April 2025
62AQI
62AQI
27th April 2025
66AQI
66AQI
28th April 2025
71AQI
71AQI
29th April 2025
65AQI
65AQI
30th April 2025
65AQI
65AQI
1st May 2025
54AQI
54AQI
2nd May 2025
58AQI
58AQI
3rd May 2025
57AQI
57AQI
4th May 2025
51AQI
51AQI
5th May 2025
51AQI
51AQI
6th May 2025
52AQI
52AQI
7th May 2025
53AQI
53AQI
8th May 2025
52AQI
52AQI
9th May 2025
58AQI
58AQI
10th May 2025
57AQI
57AQI
11th May 2025
57AQI
57AQI
12th May 2025
62AQI
62AQI
13th May 2025
56AQI
56AQI
14th May 2025
56AQI
56AQI
15th May 2025
55AQI
55AQI
16th May 2025
54AQI
54AQI
17th May 2025
61AQI
61AQI
18th May 2025
58AQI
58AQI
19th May 2025
61AQI
61AQI
20th May 2025
52AQI
52AQI
21st May 2025
48AQI
48AQI
22nd May 2025
54AQI
54AQI
23rd May 2025
56AQI
56AQI
24th May 2025
50AQI
50AQI
25th May 2025
50AQI
50AQI
26th May 2025
56AQI
56AQI
27th May 2025
51AQI
51AQI
28th May 2025
49AQI
49AQI
29th May 2025
45AQI
45AQI
30th May 2025
45AQI
45AQI
31st May 2025
43AQI
43AQI
1st June 2025
40AQI
40AQI
2nd June 2025
48AQI
48AQI
3rd June 2025
47AQI
47AQI
4th June 2025
63AQI
63AQI
5th June 2025
54AQI
54AQI
6th June 2025
48AQI
48AQI
7th June 2025
47AQI
47AQI
8th June 2025
52AQI
52AQI
9th June 2025
51AQI
51AQI
10th June 2025
49AQI
49AQI
11th June 2025
56AQI
56AQI
12th June 2025
56AQI
56AQI
13th June 2025
63AQI
63AQI
14th June 2025
57AQI
57AQI
15th June 2025
57AQI
57AQI
16th June 2025
57AQI
57AQI
17th June 2025
49AQI
49AQI
18th June 2025
48AQI
48AQI
19th June 2025
48AQI
48AQI
20th June 2025
51AQI
51AQI
21st June 2025
48AQI
48AQI
22nd June 2025
38AQI
38AQI
23rd June 2025
41AQI
41AQI
24th June 2025
44AQI
44AQI
25th June 2025
42AQI
42AQI
26th June 2025
44AQI
44AQI
27th June 2025
44AQI
44AQI
28th June 2025
50AQI
50AQI
29th June 2025
48AQI
48AQI
30th June 2025
49AQI
49AQI
1st July 2025
50AQI
50AQI
2nd July 2025
50AQI
50AQI
3rd July 2025
50AQI
50AQI
4th July 2025
50AQI
50AQI
5th July 2025
44AQI
44AQI
6th July 2025
44AQI
44AQI
7th July 2025
44AQI
44AQI
8th July 2025
43AQI
43AQI
9th July 2025
43AQI
43AQI
10th July 2025
45AQI
45AQI
11th July 2025
49AQI
49AQI
12th July 2025
47AQI
47AQI
13th July 2025
52AQI
52AQI
14th July 2025
56AQI
56AQI
15th July 2025
50AQI
50AQI
16th July 2025
57AQI
57AQI
17th July 2025
58AQI
58AQI
18th July 2025
59AQI
59AQI
19th July 2025
47AQI
47AQI
20th July 2025
51AQI
51AQI
21st July 2025
47AQI
47AQI
22nd July 2025
45AQI
45AQI
23rd July 2025
43AQI
43AQI
24th July 2025
42AQI
42AQI
25th July 2025
44AQI
44AQI
26th July 2025
37AQI
37AQI
27th July 2025
37AQI
37AQI
28th July 2025
36AQI
36AQI
29th July 2025
43AQI
43AQI
30th July 2025
46AQI
46AQI
31st July 2025
44AQI
44AQI
1st August 2025
56AQI
56AQI
2nd August 2025
55AQI
55AQI
3rd August 2025
52AQI
52AQI
4th August 2025
51AQI
51AQI
66AQI
52AQI
66AQI
65AQI
54AQI
50AQI
47AQI
54AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202557AQI
2
29
11
17
6
23
2
5
25
7
24
19
11
25
6
4
75
139
2
Highest AQI recorded in
January66AQI
Lowest AQI recorded in
July47AQI
202444AQI
21
10
23
6
20
11
12
18
19
12
23
7
29
2
17
14
22
8
28
3
23
7
4
27
241
125
Highest AQI recorded in
December56AQI
Lowest AQI recorded in
July36AQI
202337AQI
27
4
19
9
23
8
15
15
28
3
30
30
1
30
1
27
3
31
26
30
1
316
45
Highest AQI recorded in
April54AQI
Lowest AQI recorded in
December27AQI
202243AQI
31
16
5
2
23
6
11
19
21
10
27
3
20
4
1
26
2
30
30
30
1
244
68
6
Highest AQI recorded in
March76AQI
Lowest AQI recorded in
January32AQI
202139AQI
19
12
25
3
10
20
1
6
24
27
4
30
31
29
2
30
31
29
1
24
7
291
73
1
Highest AQI recorded in
April59AQI
Lowest AQI recorded in
August29AQI
202044AQI
2
11
4
15
2
16
2
30
28
3
28
3
25
5
22
8
14
15
1
22
9
191
71
2
1
Highest AQI recorded in
April67AQI
Lowest AQI recorded in
June31AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
57AQILeast Polluted Year Recorded
2023(Avg.)
37AQICity Center's annual 2025 AQI (57) shows an average percentage change of 37.6% (worsened AQI) compared to previous years: 2020 (44), 2021 (39), 2022 (43), 2023 (37), 2024 (44).
