State Library, Wenlan, 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
State Library, Wenlan, Yunnan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2021
91AQILowest AQI recorded on
26th Aug 2024
16AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 52 of Moderate air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
State Library, Wenlan, Yunnan, China
AQI
Day
Night
.
5 AM3rd Aug 2025
6 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
6AM3rd Aug
56AQI
Avg. Lowest Time
11AM3rd Aug
31AQI
Night time
Avg. Highest Time
11PM3rd Aug
59AQI
Avg. Lowest Time
7PM3rd Aug
51AQI
In the last 24 hours,
State Library's AQI reached its highest point of 59 at 11 PM during the Night, while the lowest point, 31, was recorded at 11 AM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
State Library, Wenlan, Yunnan, China
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 2025425 AMAQI
5th Jul 2025436 AMAQI
5th Jul 2025427 AMAQI
5th Jul 2025378 AMAQI
5th Jul 2025419 AMAQI
5th Jul 20253010 AMAQI
5th Jul 20253611 AMAQI
5th Jul 20253812 PMAQI
5th Jul 2025341 PMAQI
5th Jul 2025322 PMAQI
5th Jul 2025293 PMAQI
5th Jul 2025344 PMAQI
5th Jul 2025485 PMAQI
5th Jul 2025526 PMAQI
5th Jul 2025547 PMAQI
5th Jul 2025468 PMAQI
5th Jul 2025519 PMAQI
5th Jul 20255210 PMAQI
5th Jul 20254911 PMAQI
6th Jul 20255212 AMAQI
6th Jul 2025461 AMAQI
6th Jul 2025442 AMAQI
6th Jul 2025433 AMAQI
6th Jul 2025424 AMAQI
20°C16/23°C
6th Jul 2025425 AMAQI
6th Jul 2025426 AMAQI
6th Jul 2025427 AMAQI
6th Jul 2025508 AMAQI
6th Jul 2025569 AMAQI
6th Jul 20255310 AMAQI
6th Jul 20254311 AMAQI
6th Jul 20255212 PMAQI
6th Jul 2025441 PMAQI
6th Jul 2025472 PMAQI
6th Jul 2025433 PMAQI
6th Jul 2025384 PMAQI
6th Jul 2025385 PMAQI
6th Jul 2025366 PMAQI
6th Jul 2025487 PMAQI
6th Jul 2025508 PMAQI
6th Jul 2025529 PMAQI
6th Jul 20255410 PMAQI
6th Jul 20255811 PMAQI
7th Jul 20255812 AMAQI
7th Jul 2025461 AMAQI
7th Jul 2025462 AMAQI
7th Jul 2025463 AMAQI
7th Jul 2025474 AMAQI
21°C18/25°C
7th Jul 2025465 AMAQI
7th Jul 2025466 AMAQI
7th Jul 2025467 AMAQI
7th Jul 2025628 AMAQI
7th Jul 2025669 AMAQI
7th Jul 20255910 AMAQI
7th Jul 20255111 AMAQI
7th Jul 20254812 PMAQI
7th Jul 2025491 PMAQI
7th Jul 2025392 PMAQI
7th Jul 2025353 PMAQI
7th Jul 2025464 PMAQI
7th Jul 2025375 PMAQI
7th Jul 2025366 PMAQI
7th Jul 2025537 PMAQI
7th Jul 2025528 PMAQI
7th Jul 2025519 PMAQI
7th Jul 20255410 PMAQI
7th Jul 20255511 PMAQI
8th Jul 20255312 AMAQI
8th Jul 2025501 AMAQI
8th Jul 2025492 AMAQI
8th Jul 2025513 AMAQI
8th Jul 2025524 AMAQI
21°C18/23°C
8th Jul 2025525 AMAQI
8th Jul 2025526 AMAQI
8th Jul 2025517 AMAQI
8th Jul 2025458 AMAQI
8th Jul 2025489 AMAQI
8th Jul 20254210 AMAQI
8th Jul 20254411 AMAQI
8th Jul 20254112 PMAQI
8th Jul 2025371 PMAQI
8th Jul 2025372 PMAQI
8th Jul 2025373 PMAQI
8th Jul 2025374 PMAQI
8th Jul 2025375 PMAQI
8th Jul 2025436 PMAQI
8th Jul 2025407 PMAQI
8th Jul 2025428 PMAQI
8th Jul 2025549 PMAQI
8th Jul 20255310 PMAQI
8th Jul 20254911 PMAQI
9th Jul 20254412 AMAQI
9th Jul 2025521 AMAQI
9th Jul 2025522 AMAQI
9th Jul 2025523 AMAQI
9th Jul 2025504 AMAQI
21°C18/24°C
9th Jul 2025505 AMAQI
9th Jul 2025526 AMAQI
9th Jul 2025517 AMAQI
9th Jul 2025488 AMAQI
9th Jul 2025369 AMAQI
9th Jul 20253210 AMAQI
9th Jul 20252611 AMAQI
9th Jul 20253112 PMAQI
9th Jul 2025451 PMAQI
9th Jul 2025522 PMAQI
9th Jul 2025493 PMAQI
9th Jul 2025504 PMAQI
9th Jul 2025505 PMAQI
9th Jul 2025526 PMAQI
9th Jul 2025457 PMAQI
9th Jul 2025528 PMAQI
9th Jul 2025519 PMAQI
9th Jul 20254810 PMAQI
9th Jul 20255211 PMAQI
10th Jul 20255312 AMAQI
10th Jul 2025521 AMAQI
10th Jul 2025522 AMAQI
10th Jul 2025513 AMAQI
10th Jul 2025504 AMAQI
21°C18/23°C
10th Jul 2025505 AMAQI
10th Jul 2025516 AMAQI
10th Jul 2025497 AMAQI
10th Jul 2025478 AMAQI
10th Jul 2025399 AMAQI
10th Jul 20253910 AMAQI
10th Jul 20254211 AMAQI
10th Jul 20255312 PMAQI
10th Jul 2025561 PMAQI
10th Jul 2025572 PMAQI
10th Jul 2025543 PMAQI
10th Jul 2025584 PMAQI
10th Jul 2025565 PMAQI
10th Jul 2025586 PMAQI
10th Jul 2025567 PMAQI
10th Jul 2025548 PMAQI
10th Jul 2025549 PMAQI
10th Jul 20255510 PMAQI
10th Jul 20255311 PMAQI
11th Jul 20255212 AMAQI
11th Jul 2025531 AMAQI
11th Jul 2025522 AMAQI
11th Jul 2025513 AMAQI
11th Jul 2025514 AMAQI
19°C16/20°C
11th Jul 2025525 AMAQI
11th Jul 2025526 AMAQI
11th Jul 2025527 AMAQI
11th Jul 2025528 AMAQI
11th Jul 2025519 AMAQI
11th Jul 20255510 AMAQI
11th Jul 20255411 AMAQI
11th Jul 20255512 PMAQI
11th Jul 2025561 PMAQI
11th Jul 2025562 PMAQI
11th Jul 2025573 PMAQI
11th Jul 2025554 PMAQI
11th Jul 2025545 PMAQI
11th Jul 2025506 PMAQI
11th Jul 2025527 PMAQI
11th Jul 2025538 PMAQI
11th Jul 2025559 PMAQI
11th Jul 20255410 PMAQI
11th Jul 20255511 PMAQI
12th Jul 20255412 AMAQI
12th Jul 2025521 AMAQI
12th Jul 2025522 AMAQI
12th Jul 2025523 AMAQI
12th Jul 2025524 AMAQI
22°C20/25°C
12th Jul 2025525 AMAQI
12th Jul 2025526 AMAQI
12th Jul 2025527 AMAQI
12th Jul 2025568 AMAQI
12th Jul 2025619 AMAQI
12th Jul 20256610 AMAQI
12th Jul 20256411 AMAQI
12th Jul 20256812 PMAQI
12th Jul 2025661 PMAQI
12th Jul 2025662 PMAQI
12th Jul 2025683 PMAQI
12th Jul 2025624 PMAQI
12th Jul 2025685 PMAQI
12th Jul 2025636 PMAQI
12th Jul 2025547 PMAQI
12th Jul 2025568 PMAQI
12th Jul 2025549 PMAQI
12th Jul 20255510 PMAQI
12th Jul 20255411 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025521 AMAQI
13th Jul 2025532 AMAQI
13th Jul 2025543 AMAQI
13th Jul 2025544 AMAQI
21°C18/24°C
13th Jul 2025545 AMAQI
13th Jul 2025546 AMAQI
13th Jul 2025557 AMAQI
13th Jul 2025498 AMAQI
13th Jul 2025539 AMAQI
13th Jul 20255010 AMAQI
13th Jul 20256011 AMAQI
13th Jul 20256112 PMAQI
13th Jul 2025631 PMAQI
13th Jul 2025692 PMAQI
13th Jul 2025633 PMAQI
13th Jul 2025644 PMAQI
13th Jul 2025625 PMAQI
13th Jul 2025546 PMAQI
13th Jul 2025527 PMAQI
13th Jul 2025528 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255310 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025531 AMAQI
14th Jul 2025532 AMAQI
14th Jul 2025543 AMAQI
14th Jul 2025544 AMAQI
20°C17/22°C
14th Jul 2025545 AMAQI
14th Jul 2025556 AMAQI
14th Jul 2025547 AMAQI
14th Jul 2025508 AMAQI
14th Jul 2025569 AMAQI
14th Jul 20255510 AMAQI
14th Jul 20255011 AMAQI
14th Jul 20255212 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025522 PMAQI
14th Jul 2025563 PMAQI
14th Jul 2025524 PMAQI
14th Jul 2025525 PMAQI
14th Jul 2025496 PMAQI
14th Jul 2025437 PMAQI
14th Jul 2025548 PMAQI
14th Jul 2025549 PMAQI
14th Jul 20255310 PMAQI
14th Jul 20255311 PMAQI
15th Jul 20255612 AMAQI
15th Jul 2025541 AMAQI
15th Jul 2025542 AMAQI
15th Jul 2025543 AMAQI
15th Jul 2025544 AMAQI
20°C16/23°C
15th Jul 2025545 AMAQI
15th Jul 2025546 AMAQI
15th Jul 2025547 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025509 AMAQI
15th Jul 20254710 AMAQI
15th Jul 20253611 AMAQI
15th Jul 20254312 PMAQI
15th Jul 2025511 PMAQI
15th Jul 2025422 PMAQI
15th Jul 2025403 PMAQI
15th Jul 2025294 PMAQI
15th Jul 2025585 PMAQI
15th Jul 2025566 PMAQI
15th Jul 2025567 PMAQI
15th Jul 2025558 PMAQI
15th Jul 2025559 PMAQI
15th Jul 20255610 PMAQI
15th Jul 20255611 PMAQI
16th Jul 20255512 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025552 AMAQI
16th Jul 2025543 AMAQI
16th Jul 2025534 AMAQI
22°C19/26°C
16th Jul 2025535 AMAQI
16th Jul 2025546 AMAQI
16th Jul 2025537 AMAQI
16th Jul 2025588 AMAQI
16th Jul 2025569 AMAQI
16th Jul 20255110 AMAQI
16th Jul 20255311 AMAQI
16th Jul 20255712 PMAQI
16th Jul 2025561 PMAQI
16th Jul 2025562 PMAQI
16th Jul 2025563 PMAQI
16th Jul 2025504 PMAQI
16th Jul 2025435 PMAQI
16th Jul 2025476 PMAQI
16th Jul 2025447 PMAQI
16th Jul 2025588 PMAQI
16th Jul 2025609 PMAQI
16th Jul 20256110 PMAQI
16th Jul 20255811 PMAQI
17th Jul 20255912 AMAQI
17th Jul 2025541 AMAQI
17th Jul 2025542 AMAQI
17th Jul 2025543 AMAQI
17th Jul 2025554 AMAQI
22°C19/26°C
17th Jul 2025545 AMAQI
17th Jul 2025556 AMAQI
17th Jul 2025547 AMAQI
17th Jul 2025488 AMAQI
17th Jul 2025409 AMAQI
17th Jul 20253410 AMAQI
17th Jul 20253511 AMAQI
17th Jul 20254012 PMAQI
17th Jul 2025491 PMAQI
17th Jul 2025432 PMAQI
17th Jul 2025423 PMAQI
17th Jul 2025434 PMAQI
17th Jul 2025365 PMAQI
17th Jul 2025396 PMAQI
17th Jul 2025447 PMAQI
17th Jul 2025568 PMAQI
17th Jul 2025549 PMAQI
17th Jul 20255710 PMAQI
17th Jul 20255711 PMAQI
18th Jul 20255812 AMAQI
18th Jul 2025551 AMAQI
18th Jul 2025552 AMAQI
18th Jul 2025543 AMAQI
18th Jul 2025534 AMAQI
22°C19/26°C
18th Jul 2025535 AMAQI
18th Jul 2025536 AMAQI
18th Jul 2025537 AMAQI
18th Jul 2025548 AMAQI
18th Jul 2025479 AMAQI
18th Jul 20255610 AMAQI
18th Jul 20255711 AMAQI
18th Jul 20255212 PMAQI
18th Jul 2025541 PMAQI
18th Jul 2025622 PMAQI
18th Jul 2025633 PMAQI
18th Jul 2025624 PMAQI
18th Jul 2025585 PMAQI
18th Jul 2025546 PMAQI
18th Jul 2025487 PMAQI
18th Jul 2025548 PMAQI
18th Jul 2025449 PMAQI
18th Jul 20254510 PMAQI
18th Jul 20254711 PMAQI
19th Jul 20255212 AMAQI
19th Jul 2025541 AMAQI
19th Jul 2025542 AMAQI
19th Jul 2025553 AMAQI
19th Jul 2025544 AMAQI
22°C19/26°C
19th Jul 2025545 AMAQI
19th Jul 2025546 AMAQI
19th Jul 2025547 AMAQI
19th Jul 2025518 AMAQI
19th Jul 2025579 AMAQI
19th Jul 20255710 AMAQI
19th Jul 20255611 AMAQI
19th Jul 20255212 PMAQI
19th Jul 2025461 PMAQI
19th Jul 2025422 PMAQI
19th Jul 2025353 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025275 PMAQI
19th Jul 2025306 PMAQI
19th Jul 2025427 PMAQI
19th Jul 2025518 PMAQI
19th Jul 2025569 PMAQI
19th Jul 20255610 PMAQI
19th Jul 20255311 PMAQI
20th Jul 20255212 AMAQI
20th Jul 2025541 AMAQI
20th Jul 2025542 AMAQI
20th Jul 2025543 AMAQI
20th Jul 2025544 AMAQI
23°C19/27°C
20th Jul 2025545 AMAQI
20th Jul 2025546 AMAQI
20th Jul 2025547 AMAQI
20th Jul 2025638 AMAQI
20th Jul 2025679 AMAQI
20th Jul 20256010 AMAQI
20th Jul 20255811 AMAQI
20th Jul 20255212 PMAQI
20th Jul 2025561 PMAQI
20th Jul 2025432 PMAQI
20th Jul 2025333 PMAQI
20th Jul 2025234 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025356 PMAQI
20th Jul 2025507 PMAQI
20th Jul 2025568 PMAQI
20th Jul 2025589 PMAQI
20th Jul 20255810 PMAQI
20th Jul 20256011 PMAQI
21st Jul 20255712 AMAQI
21st Jul 2025541 AMAQI
21st Jul 2025542 AMAQI
21st Jul 2025543 AMAQI
21st Jul 2025554 AMAQI
21°C19/26°C
21st Jul 2025565 AMAQI
21st Jul 2025556 AMAQI
21st Jul 2025557 AMAQI
21st Jul 2025628 AMAQI
21st Jul 2025569 AMAQI
21st Jul 20256010 AMAQI
21st Jul 20256011 AMAQI
21st Jul 20256212 PMAQI
21st Jul 2025581 PMAQI
21st Jul 2025582 PMAQI
21st Jul 2025573 PMAQI
21st Jul 2025504 PMAQI
21st Jul 2025445 PMAQI
21st Jul 2025406 PMAQI
21st Jul 2025507 PMAQI
21st Jul 2025538 PMAQI
21st Jul 2025549 PMAQI
21st Jul 20256110 PMAQI
21st Jul 20256011 PMAQI
22nd Jul 20255812 AMAQI
22nd Jul 2025551 AMAQI
22nd Jul 2025562 AMAQI
22nd Jul 2025563 AMAQI
22nd Jul 2025564 AMAQI
21°C17/23°C
22nd Jul 2025565 AMAQI
22nd Jul 2025566 AMAQI
22nd Jul 2025567 AMAQI
22nd Jul 2025468 AMAQI
22nd Jul 2025249 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20254211 AMAQI
22nd Jul 20254712 PMAQI
22nd Jul 2025341 PMAQI
22nd Jul 2025372 PMAQI
22nd Jul 2025413 PMAQI
22nd Jul 2025314 PMAQI
22nd Jul 2025265 PMAQI
22nd Jul 2025416 PMAQI
22nd Jul 2025467 PMAQI
22nd Jul 2025568 PMAQI
22nd Jul 2025549 PMAQI
22nd Jul 20256010 PMAQI
22nd Jul 20256011 PMAQI
23rd Jul 20255512 AMAQI
23rd Jul 2025561 AMAQI
23rd Jul 2025562 AMAQI
23rd Jul 2025543 AMAQI
23rd Jul 2025544 AMAQI
21°C19/23°C
23rd Jul 2025545 AMAQI
23rd Jul 2025536 AMAQI
23rd Jul 2025547 AMAQI
23rd Jul 2025598 AMAQI
23rd Jul 2025609 AMAQI
23rd Jul 20256110 AMAQI
23rd Jul 20256411 AMAQI
23rd Jul 20256212 PMAQI
23rd Jul 2025571 PMAQI
23rd Jul 2025622 PMAQI
23rd Jul 2025603 PMAQI
23rd Jul 2025524 PMAQI
23rd Jul 2025485 PMAQI
23rd Jul 2025426 PMAQI
23rd Jul 2025527 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025539 PMAQI
23rd Jul 20255910 PMAQI
23rd Jul 20255911 PMAQI
24th Jul 20255712 AMAQI
24th Jul 2025581 AMAQI
24th Jul 2025562 AMAQI
24th Jul 2025563 AMAQI
24th Jul 2025564 AMAQI
21°C19/24°C
24th Jul 2025565 AMAQI
24th Jul 2025566 AMAQI
24th Jul 2025567 AMAQI
24th Jul 2025488 AMAQI
24th Jul 2025429 AMAQI
24th Jul 20254310 AMAQI
24th Jul 20253411 AMAQI
24th Jul 20252812 PMAQI
24th Jul 2025451 PMAQI
24th Jul 2025392 PMAQI
24th Jul 2025413 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025325 PMAQI
24th Jul 2025256 PMAQI
24th Jul 2025527 PMAQI
24th Jul 2025568 PMAQI
24th Jul 2025569 PMAQI
24th Jul 20255810 PMAQI
24th Jul 20255511 PMAQI
25th Jul 20255612 AMAQI
25th Jul 2025551 AMAQI
25th Jul 2025552 AMAQI
25th Jul 2025553 AMAQI
25th Jul 2025544 AMAQI
21°C18/24°C
25th Jul 2025545 AMAQI
25th Jul 2025546 AMAQI
25th Jul 2025547 AMAQI
25th Jul 2025458 AMAQI
25th Jul 2025399 AMAQI
25th Jul 20253610 AMAQI
25th Jul 20254211 AMAQI
25th Jul 20254812 PMAQI
25th Jul 2025371 PMAQI
25th Jul 2025312 PMAQI
25th Jul 2025423 PMAQI
25th Jul 2025504 PMAQI
25th Jul 2025475 PMAQI
25th Jul 2025406 PMAQI
25th Jul 2025487 PMAQI
25th Jul 2025538 PMAQI
25th Jul 2025559 PMAQI
25th Jul 20255510 PMAQI
25th Jul 20255611 PMAQI
26th Jul 20255312 AMAQI
26th Jul 2025541 AMAQI
26th Jul 2025542 AMAQI
26th Jul 2025543 AMAQI
26th Jul 2025524 AMAQI
20°C16/22°C
26th Jul 2025535 AMAQI
26th Jul 2025536 AMAQI
26th Jul 2025537 AMAQI
26th Jul 2025408 AMAQI
26th Jul 2025409 AMAQI
26th Jul 20253410 AMAQI
26th Jul 20253611 AMAQI
26th Jul 20253612 PMAQI
26th Jul 2025271 PMAQI
26th Jul 2025382 PMAQI
26th Jul 2025373 PMAQI
26th Jul 2025404 PMAQI
26th Jul 2025305 PMAQI
26th Jul 2025526 PMAQI
26th Jul 2025527 PMAQI
26th Jul 2025548 PMAQI
26th Jul 2025609 PMAQI
26th Jul 20255710 PMAQI
26th Jul 20255511 PMAQI
27th Jul 20255912 AMAQI
27th Jul 2025541 AMAQI
27th Jul 2025532 AMAQI
27th Jul 2025523 AMAQI
27th Jul 2025524 AMAQI
20°C17/22°C
27th Jul 2025525 AMAQI
27th Jul 2025526 AMAQI
27th Jul 2025527 AMAQI
27th Jul 2025508 AMAQI
27th Jul 2025499 AMAQI
27th Jul 20255010 AMAQI
27th Jul 20255611 AMAQI
27th Jul 20255412 PMAQI
27th Jul 2025661 PMAQI
27th Jul 2025562 PMAQI
27th Jul 2025493 PMAQI
27th Jul 2025504 PMAQI
27th Jul 2025445 PMAQI
27th Jul 2025556 PMAQI
27th Jul 2025587 PMAQI
27th Jul 2025568 PMAQI
27th Jul 2025609 PMAQI
27th Jul 20255810 PMAQI
27th Jul 20256111 PMAQI
28th Jul 20255812 AMAQI
28th Jul 2025521 AMAQI
28th Jul 2025532 AMAQI
28th Jul 2025533 AMAQI
28th Jul 2025544 AMAQI
19°C16/21°C
28th Jul 2025545 AMAQI
28th Jul 2025536 AMAQI
28th Jul 2025547 AMAQI
28th Jul 2025688 AMAQI
28th Jul 2025669 AMAQI
28th Jul 20256610 AMAQI
28th Jul 20256511 AMAQI
28th Jul 20257412 PMAQI
28th Jul 2025861 PMAQI
28th Jul 2025802 PMAQI
28th Jul 2025793 PMAQI
28th Jul 2025814 PMAQI
28th Jul 2025655 PMAQI
28th Jul 2025726 PMAQI
28th Jul 2025667 PMAQI
28th Jul 2025628 PMAQI
28th Jul 2025629 PMAQI
28th Jul 20256210 PMAQI
28th Jul 20256311 PMAQI
29th Jul 20256312 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025542 AMAQI
29th Jul 2025553 AMAQI
29th Jul 2025584 AMAQI
21°C18/27°C
29th Jul 2025585 AMAQI
29th Jul 2025586 AMAQI
29th Jul 2025587 AMAQI
29th Jul 2025618 AMAQI
29th Jul 2025649 AMAQI
29th Jul 20256010 AMAQI
29th Jul 20256211 AMAQI
29th Jul 20256012 PMAQI
29th Jul 2025671 PMAQI
29th Jul 2025672 PMAQI
29th Jul 2025653 PMAQI
29th Jul 2025684 PMAQI
29th Jul 2025625 PMAQI
29th Jul 2025646 PMAQI
29th Jul 2025687 PMAQI
29th Jul 2025638 PMAQI
29th Jul 2025649 PMAQI
29th Jul 20256510 PMAQI
29th Jul 20256811 PMAQI
30th Jul 20256612 AMAQI
30th Jul 2025571 AMAQI
30th Jul 2025562 AMAQI
30th Jul 2025583 AMAQI
30th Jul 2025584 AMAQI
23°C19/28°C
30th Jul 2025585 AMAQI
30th Jul 2025586 AMAQI
30th Jul 2025587 AMAQI
30th Jul 2025718 AMAQI
30th Jul 2025729 AMAQI
30th Jul 20257810 AMAQI
30th Jul 20258511 AMAQI
30th Jul 20258112 PMAQI
30th Jul 2025781 PMAQI
30th Jul 2025742 PMAQI
30th Jul 2025783 PMAQI
30th Jul 2025744 PMAQI
30th Jul 2025725 PMAQI
30th Jul 2025666 PMAQI
30th Jul 2025697 PMAQI
30th Jul 2025628 PMAQI
30th Jul 2025609 PMAQI
30th Jul 20255810 PMAQI
30th Jul 20256111 PMAQI
31st Jul 20256012 AMAQI
31st Jul 2025591 AMAQI
31st Jul 2025592 AMAQI
31st Jul 2025593 AMAQI
31st Jul 2025594 AMAQI
23°C20/28°C
31st Jul 2025595 AMAQI
31st Jul 2025596 AMAQI
31st Jul 2025597 AMAQI
31st Jul 2025598 AMAQI
31st Jul 2025599 AMAQI
31st Jul 20255810 AMAQI
31st Jul 20256411 AMAQI
31st Jul 20256212 PMAQI
31st Jul 2025581 PMAQI
31st Jul 2025582 PMAQI
31st Jul 2025583 PMAQI
31st Jul 2025584 PMAQI
31st Jul 2025625 PMAQI
31st Jul 2025656 PMAQI
31st Jul 2025597 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255410 PMAQI
31st Jul 20255511 PMAQI
1st Aug 20255612 AMAQI
1st Aug 2025571 AMAQI
1st Aug 2025552 AMAQI
1st Aug 2025563 AMAQI
1st Aug 2025564 AMAQI
21°C18/25°C
1st Aug 2025565 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025557 AMAQI
1st Aug 2025468 AMAQI
1st Aug 2025569 AMAQI
1st Aug 20255610 AMAQI
1st Aug 20255311 AMAQI
1st Aug 20255712 PMAQI
1st Aug 2025601 PMAQI
1st Aug 2025572 PMAQI
1st Aug 2025543 PMAQI
1st Aug 2025574 PMAQI
1st Aug 2025535 PMAQI
1st Aug 2025526 PMAQI
1st Aug 2025527 PMAQI
1st Aug 2025578 PMAQI
1st Aug 2025589 PMAQI
1st Aug 20255710 PMAQI
1st Aug 20255311 PMAQI
2nd Aug 20255612 AMAQI
2nd Aug 2025551 AMAQI
2nd Aug 2025552 AMAQI
2nd Aug 2025563 AMAQI
2nd Aug 2025554 AMAQI
21°C17/26°C
2nd Aug 2025555 AMAQI
2nd Aug 2025566 AMAQI
2nd Aug 2025557 AMAQI
2nd Aug 2025608 AMAQI
2nd Aug 2025579 AMAQI
2nd Aug 20255710 AMAQI
2nd Aug 20255211 AMAQI
2nd Aug 20256812 PMAQI
2nd Aug 2025541 PMAQI
2nd Aug 2025542 PMAQI
2nd Aug 2025643 PMAQI
2nd Aug 2025584 PMAQI
2nd Aug 2025565 PMAQI
2nd Aug 2025516 PMAQI
2nd Aug 2025537 PMAQI
2nd Aug 2025548 PMAQI
2nd Aug 2025579 PMAQI
2nd Aug 20255610 PMAQI
2nd Aug 20255511 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025551 AMAQI
3rd Aug 2025542 AMAQI
3rd Aug 2025563 AMAQI
3rd Aug 2025554 AMAQI
20°C17/23°C
3rd Aug 2025555 AMAQI
3rd Aug 2025566 AMAQI
3rd Aug 2025567 AMAQI
3rd Aug 2025528 AMAQI
3rd Aug 2025509 AMAQI
3rd Aug 20254210 AMAQI
3rd Aug 20253111 AMAQI
3rd Aug 20254312 PMAQI
3rd Aug 2025501 PMAQI
3rd Aug 2025552 PMAQI
3rd Aug 2025483 PMAQI
3rd Aug 2025424 PMAQI
3rd Aug 2025435 PMAQI
3rd Aug 2025416 PMAQI
3rd Aug 2025517 PMAQI
3rd Aug 2025548 PMAQI
3rd Aug 2025569 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255911 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025551 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025543 AMAQI
4th Aug 2025544 AMAQI
22°C19/26°C
4th Aug 2025545 AMAQI
5 AM4th Aug 2025556 AMAQI
4th Aug 2025547 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025469 AMAQI
4th Aug 20254110 AMAQI
4th Aug 20254311 AMAQI
11 AM4th Aug 20255012 PMAQI
4th Aug 2025471 PMAQI
4th Aug 2025462 PMAQI
4th Aug 2025403 PMAQI
4th Aug 2025294 PMAQI
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 PM
51AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 6 PM
51AQI
14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 6 PM (Avg. 51), while the lowest AQI was between 5 AM to 6 PM (Avg. 51).
Night time
Avg. Highest Time
12 AM - 11 PM
54AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
54AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 54), while the lowest AQI was between 12 AM to 11 PM (Avg. 54).
2025 Days Vs Air Quality
State Library, Wenlan, Yunnan, China
2025
20%
42
60%
128
20%
44
0.4%
1
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
42 DaysModerate
128 DaysPoor
44 DaysUnhealthy
1 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 20%
Health Risk Level:
Very high
In 2025, 20% of 216 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
State Library, Wenlan, 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
92AQI
92AQI
2nd January 2025
93AQI
93AQI
3rd January 2025
108AQI
108AQI
4th January 2025
122AQI
122AQI
5th January 2025
108AQI
108AQI
6th January 2025
140AQI
140AQI
7th January 2025
135AQI
135AQI
8th January 2025
146AQI
146AQI
9th January 2025
124AQI
124AQI
10th January 2025
105AQI
105AQI
11th January 2025
99AQI
99AQI
12th January 2025
106AQI
106AQI
13th January 2025
100AQI
100AQI
14th January 2025
108AQI
108AQI
15th January 2025
124AQI
124AQI
16th January 2025
127AQI
127AQI
17th January 2025
135AQI
135AQI
18th January 2025
141AQI
141AQI
19th January 2025
107AQI
107AQI
20th January 2025
114AQI
114AQI
21st January 2025
136AQI
136AQI
22nd January 2025
136AQI
136AQI
23rd January 2025
107AQI
107AQI
24th January 2025
99AQI
99AQI
25th January 2025
89AQI
89AQI
26th January 2025
80AQI
80AQI
27th January 2025
89AQI
89AQI
28th January 2025
88AQI
88AQI
29th January 2025
94AQI
94AQI
30th January 2025
90AQI
90AQI
31st January 2025
87AQI
87AQI
1st February 2025
94AQI
94AQI
2nd February 2025
102AQI
102AQI
3rd February 2025
83AQI
83AQI
4th February 2025
100AQI
100AQI
5th February 2025
96AQI
96AQI
6th February 2025
101AQI
101AQI
7th February 2025
88AQI
88AQI
8th February 2025
76AQI
76AQI
9th February 2025
68AQI
68AQI
10th February 2025
73AQI
73AQI
11th February 2025
81AQI
81AQI
12th February 2025
97AQI
97AQI
13th February 2025
79AQI
79AQI
14th February 2025
66AQI
66AQI
15th February 2025
61AQI
61AQI
16th February 2025
68AQI
68AQI
17th February 2025
59AQI
59AQI
18th February 2025
51AQI
51AQI
19th February 2025
55AQI
55AQI
20th February 2025
54AQI
54AQI
21st February 2025
48AQI
48AQI
22nd February 2025
48AQI
48AQI
23rd February 2025
47AQI
47AQI
24th February 2025
37AQI
37AQI
25th February 2025
46AQI
46AQI
26th February 2025
39AQI
39AQI
27th February 2025
50AQI
50AQI
28th February 2025
56AQI
56AQI
1st March 2025
55AQI
55AQI
2nd March 2025
63AQI
63AQI
3rd March 2025
71AQI
71AQI
4th March 2025
78AQI
78AQI
5th March 2025
85AQI
85AQI
6th March 2025
83AQI
83AQI
7th March 2025
66AQI
66AQI
8th March 2025
67AQI
67AQI
9th March 2025
62AQI
62AQI
10th March 2025
60AQI
60AQI
11th March 2025
71AQI
71AQI
12th March 2025
64AQI
64AQI
13th March 2025
74AQI
74AQI
14th March 2025
107AQI
107AQI
15th March 2025
117AQI
117AQI
16th March 2025
88AQI
88AQI
17th March 2025
101AQI
101AQI
18th March 2025
78AQI
78AQI
19th March 2025
95AQI
95AQI
20th March 2025
100AQI
100AQI
21st March 2025
103AQI
103AQI
22nd March 2025
128AQI
128AQI
23rd March 2025
127AQI
127AQI
24th March 2025
103AQI
103AQI
25th March 2025
120AQI
120AQI
26th March 2025
112AQI
112AQI
27th March 2025
135AQI
135AQI
28th March 2025
153AQI
153AQI
29th March 2025
142AQI
142AQI
30th March 2025
100AQI
100AQI
31st March 2025
100AQI
100AQI
1st April 2025
86AQI
86AQI
2nd April 2025
97AQI
97AQI
3rd April 2025
115AQI
115AQI
4th April 2025
142AQI
142AQI
5th April 2025
138AQI
138AQI
6th April 2025
101AQI
101AQI
7th April 2025
111AQI
111AQI
8th April 2025
117AQI
117AQI
9th April 2025
117AQI
117AQI
10th April 2025
125AQI
125AQI
11th April 2025
110AQI
110AQI
12th April 2025
103AQI
103AQI
13th April 2025
103AQI
103AQI
14th April 2025
88AQI
88AQI
15th April 2025
93AQI
93AQI
16th April 2025
72AQI
72AQI
17th April 2025
70AQI
70AQI
18th April 2025
71AQI
71AQI
19th April 2025
71AQI
71AQI
20th April 2025
74AQI
74AQI
21st April 2025
66AQI
66AQI
22nd April 2025
69AQI
69AQI
23rd April 2025
79AQI
79AQI
24th April 2025
86AQI
86AQI
25th April 2025
82AQI
82AQI
26th April 2025
89AQI
89AQI
27th April 2025
105AQI
105AQI
28th April 2025
99AQI
99AQI
29th April 2025
80AQI
80AQI
30th April 2025
81AQI
81AQI
1st May 2025
84AQI
84AQI
2nd May 2025
70AQI
70AQI
3rd May 2025
61AQI
61AQI
4th May 2025
61AQI
61AQI
5th May 2025
60AQI
60AQI
6th May 2025
63AQI
63AQI
7th May 2025
66AQI
66AQI
8th May 2025
70AQI
70AQI
9th May 2025
77AQI
77AQI
10th May 2025
70AQI
70AQI
11th May 2025
62AQI
62AQI
12th May 2025
61AQI
61AQI
13th May 2025
63AQI
63AQI
14th May 2025
67AQI
67AQI
15th May 2025
56AQI
56AQI
16th May 2025
58AQI
58AQI
17th May 2025
53AQI
53AQI
18th May 2025
57AQI
57AQI
19th May 2025
55AQI
55AQI
20th May 2025
52AQI
52AQI
21st May 2025
57AQI
57AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
71AQI
71AQI
24th May 2025
63AQI
63AQI
25th May 2025
67AQI
67AQI
26th May 2025
54AQI
54AQI
27th May 2025
49AQI
49AQI
28th May 2025
44AQI
44AQI
29th May 2025
46AQI
46AQI
30th May 2025
41AQI
41AQI
31st May 2025
38AQI
38AQI
1st June 2025
39AQI
39AQI
2nd June 2025
39AQI
39AQI
3rd June 2025
53AQI
53AQI
4th June 2025
58AQI
58AQI
5th June 2025
51AQI
51AQI
6th June 2025
59AQI
59AQI
7th June 2025
58AQI
58AQI
8th June 2025
54AQI
54AQI
9th June 2025
57AQI
57AQI
10th June 2025
67AQI
67AQI
11th June 2025
74AQI
74AQI
12th June 2025
66AQI
66AQI
13th June 2025
63AQI
63AQI
14th June 2025
61AQI
61AQI
15th June 2025
62AQI
62AQI
16th June 2025
51AQI
51AQI
17th June 2025
44AQI
44AQI
18th June 2025
47AQI
47AQI
19th June 2025
46AQI
46AQI
20th June 2025
51AQI
51AQI
21st June 2025
48AQI
48AQI
22nd June 2025
47AQI
47AQI
23rd June 2025
46AQI
46AQI
24th June 2025
42AQI
42AQI
25th June 2025
41AQI
41AQI
26th June 2025
40AQI
40AQI
27th June 2025
44AQI
44AQI
28th June 2025
43AQI
43AQI
29th June 2025
41AQI
41AQI
30th June 2025
40AQI
40AQI
1st July 2025
40AQI
40AQI
2nd July 2025
36AQI
36AQI
3rd July 2025
41AQI
41AQI
4th July 2025
42AQI
42AQI
5th July 2025
44AQI
44AQI
6th July 2025
46AQI
46AQI
7th July 2025
49AQI
49AQI
8th July 2025
46AQI
46AQI
9th July 2025
47AQI
47AQI
10th July 2025
52AQI
52AQI
11th July 2025
53AQI
53AQI
12th July 2025
58AQI
58AQI
13th July 2025
56AQI
56AQI
14th July 2025
53AQI
53AQI
15th July 2025
52AQI
52AQI
16th July 2025
54AQI
54AQI
17th July 2025
49AQI
49AQI
18th July 2025
53AQI
53AQI
19th July 2025
49AQI
49AQI
20th July 2025
51AQI
51AQI
21st July 2025
55AQI
55AQI
22nd July 2025
48AQI
48AQI
23rd July 2025
55AQI
55AQI
24th July 2025
48AQI
48AQI
25th July 2025
49AQI
49AQI
26th July 2025
48AQI
48AQI
27th July 2025
54AQI
54AQI
28th July 2025
63AQI
63AQI
29th July 2025
62AQI
62AQI
30th July 2025
66AQI
66AQI
31st July 2025
59AQI
59AQI
1st August 2025
55AQI
55AQI
2nd August 2025
56AQI
56AQI
3rd August 2025
52AQI
52AQI
111AQI
69AQI
94AQI
95AQI
60AQI
51AQI
51AQI
54AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202575AQI
12
19
7
19
2
19
11
1
18
12
5
26
15
15
15
16
3
42
128
44
1
Highest AQI recorded in
January111AQI
Lowest AQI recorded in
July51AQI
202462AQI
11
4
1
8
14
1
8
19
3
6
23
2
29
1
31
23
8
17
13
8
23
1
29
20
11
127
137
46
4
Highest AQI recorded in
April116AQI
Lowest AQI recorded in
February21AQI
202380AQI
19
10
2
11
16
1
7
20
4
4
14
12
29
2
10
20
22
9
15
16
16
14
8
23
8
16
2
5
17
9
84
185
73
19
Highest AQI recorded in
April135AQI
Lowest AQI recorded in
July49AQI
202273AQI
1
29
1
1
17
3
1
1
12
18
15
13
2
15
15
1
25
5
19
5
1
9
19
1
5
22
4
2
26
2
2
16
11
2
80
182
54
5
Highest AQI recorded in
April102AQI
Lowest AQI recorded in
June40AQI
202180AQI
2
15
14
21
7
2
22
7
2
15
9
4
6
25
18
12
15
16
8
13
30
3
28
4
21
5
1
21
9
59
219
66
11
Highest AQI recorded in
March133AQI
Lowest AQI recorded in
June50AQI
202069AQI
6
7
1
10
7
2
1
17
1
21
9
18
13
20
11
16
12
2
9
22
5
20
5
4
21
6
94
135
27
9
1
Highest AQI recorded in
March151AQI
Lowest AQI recorded in
June48AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
80AQILeast Polluted Year Recorded
2024(Avg.)
62AQIState Library's annual 2025 AQI (75) shows an average percentage change of 4.7% (worsened AQI) compared to previous years: 2020 (69), 2021 (80), 2022 (73), 2023 (80), 2024 (62).
