Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Sumner, Portland, Oregon, 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

Sumner, Portland, Oregon, United States

2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
9th Aug 2026
83AQI
Lowest AQI recorded on
16th Aug 2025
13AQI

Same Day Analysis (14th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 46 of Good air quality on the same day.

Day & Night AQI Trend: 13th Aug - 14th Aug 2026

Sumner, Portland, Oregon, United States

AQI
Day
Night
.

5 AM13th Aug 2026

8 PM

4 AM14th Aug 2026

Day time
Avg. Highest Time
9AM13th Aug

84AQI

Avg. Lowest Time
4PM13th Aug

46AQI

Night time
Avg. Highest Time
9PM13th Aug

58AQI

Avg. Lowest Time
4AM14th Aug

44AQI

In the last 24 hours,

Sumner's AQI reached its highest point of 84 at 9 AM during the Day, while the lowest point, 44, was recorded at 4 AM during the Night between 13th Aug and 14th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Sumner, Portland, Oregon, United States

JulAug
16th - 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 - 13th13th - 14th14th
Day
Night
16th Jul 2026305 AMAQI
16th Jul 2026306 AMAQI
16th Jul 2026307 AMAQI
16th Jul 2026328 AMAQI
16th Jul 2026319 AMAQI
16th Jul 20263010 AMAQI
16th Jul 20263211 AMAQI
16th Jul 20263212 PMAQI
16th Jul 2026301 PMAQI
16th Jul 2026322 PMAQI
16th Jul 2026303 PMAQI
16th Jul 2026264 PMAQI
16th Jul 2026295 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026297 PMAQI
16th Jul 2026288 PMAQI
16th Jul 2026269 PMAQI
16th Jul 20262810 PMAQI
16th Jul 20262611 PMAQI
17th Jul 20261812 AMAQI
17th Jul 2026201 AMAQI
17th Jul 2026702 AMAQI
17th Jul 20261203 AMAQI
17th Jul 20261264 AMAQI

19°C16/26°C

17th Jul 20261365 AMAQI
17th Jul 2026726 AMAQI
17th Jul 2026727 AMAQI
17th Jul 2026528 AMAQI
17th Jul 2026809 AMAQI
17th Jul 20263410 AMAQI
17th Jul 20267211 AMAQI
17th Jul 20266612 PMAQI
17th Jul 2026541 PMAQI
17th Jul 2026542 PMAQI
17th Jul 2026543 PMAQI
17th Jul 2026424 PMAQI
17th Jul 2026425 PMAQI
17th Jul 2026256 PMAQI
17th Jul 2026477 PMAQI
17th Jul 2026518 PMAQI
17th Jul 2026529 PMAQI
17th Jul 20266210 PMAQI
17th Jul 20265911 PMAQI
18th Jul 20264212 AMAQI
18th Jul 2026591 AMAQI
18th Jul 2026672 AMAQI
18th Jul 2026633 AMAQI
18th Jul 2026684 AMAQI

19°C12/26°C

18th Jul 2026665 AMAQI
18th Jul 2026626 AMAQI
18th Jul 2026697 AMAQI
18th Jul 2026668 AMAQI
18th Jul 2026599 AMAQI
18th Jul 20266210 AMAQI
18th Jul 20267511 AMAQI
18th Jul 20265812 PMAQI
18th Jul 2026581 PMAQI
18th Jul 2026582 PMAQI
18th Jul 2026633 PMAQI
18th Jul 2026624 PMAQI
18th Jul 2026625 PMAQI
18th Jul 2026596 PMAQI
18th Jul 2026587 PMAQI
18th Jul 2026508 PMAQI
18th Jul 2026529 PMAQI
18th Jul 20264210 PMAQI
18th Jul 20265411 PMAQI
19th Jul 20264612 AMAQI
19th Jul 2026461 AMAQI
19th Jul 2026462 AMAQI
19th Jul 2026483 AMAQI
19th Jul 2026654 AMAQI

20°C13/29°C

19th Jul 2026725 AMAQI
19th Jul 2026646 AMAQI
19th Jul 2026607 AMAQI
19th Jul 2026428 AMAQI
19th Jul 2026569 AMAQI
19th Jul 20267410 AMAQI
19th Jul 20267811 AMAQI
19th Jul 20267112 PMAQI
19th Jul 2026801 PMAQI
19th Jul 2026832 PMAQI
19th Jul 2026523 PMAQI
19th Jul 2026704 PMAQI
19th Jul 2026485 PMAQI
19th Jul 2026546 PMAQI
19th Jul 2026737 PMAQI
19th Jul 2026668 PMAQI
19th Jul 2026669 PMAQI
19th Jul 20265810 PMAQI
19th Jul 20264811 PMAQI
20th Jul 20267012 AMAQI
20th Jul 2026641 AMAQI
20th Jul 2026722 AMAQI
20th Jul 2026693 AMAQI
20th Jul 2026764 AMAQI

21°C14/31°C

20th Jul 2026425 AMAQI
20th Jul 2026886 AMAQI
20th Jul 2026737 AMAQI
20th Jul 2026508 AMAQI
20th Jul 2026549 AMAQI
20th Jul 20267010 AMAQI
20th Jul 20266511 AMAQI
20th Jul 20264212 PMAQI
20th Jul 2026421 PMAQI
20th Jul 2026562 PMAQI
20th Jul 2026723 PMAQI
20th Jul 2026674 PMAQI
20th Jul 2026545 PMAQI
20th Jul 2026426 PMAQI
20th Jul 2026447 PMAQI
20th Jul 2026469 PMAQI
20th Jul 20264810 PMAQI
20th Jul 20264411 PMAQI
21st Jul 20264812 AMAQI
21st Jul 2026461 AMAQI
21st Jul 2026442 AMAQI
21st Jul 2026513 AMAQI
21st Jul 2026484 AMAQI

24°C16/34°C

21st Jul 2026515 AMAQI
21st Jul 2026516 AMAQI
21st Jul 2026517 AMAQI
21st Jul 2026528 AMAQI
21st Jul 2026509 AMAQI
21st Jul 20265110 AMAQI
21st Jul 20265311 AMAQI
21st Jul 20265012 PMAQI
21st Jul 2026521 PMAQI
21st Jul 2026552 PMAQI
21st Jul 2026593 PMAQI
21st Jul 2026654 PMAQI
21st Jul 2026705 PMAQI
21st Jul 2026766 PMAQI
21st Jul 2026697 PMAQI
21st Jul 2026788 PMAQI
21st Jul 2026659 PMAQI
21st Jul 20266310 PMAQI
21st Jul 20265711 PMAQI
22nd Jul 20265312 AMAQI
22nd Jul 2026541 AMAQI
22nd Jul 2026502 AMAQI
22nd Jul 2026503 AMAQI
22nd Jul 2026514 AMAQI

28°C17/40°C

22nd Jul 2026565 AMAQI
22nd Jul 2026506 AMAQI
22nd Jul 2026487 AMAQI
22nd Jul 2026488 AMAQI
22nd Jul 2026519 AMAQI
22nd Jul 20265110 AMAQI
22nd Jul 20265411 AMAQI
22nd Jul 20265812 PMAQI
22nd Jul 2026621 PMAQI
22nd Jul 2026642 PMAQI
22nd Jul 2026643 PMAQI
22nd Jul 2026664 PMAQI
22nd Jul 2026685 PMAQI
22nd Jul 2026646 PMAQI
22nd Jul 2026627 PMAQI
22nd Jul 2026598 PMAQI
22nd Jul 2026589 PMAQI
22nd Jul 20265310 PMAQI
22nd Jul 20265111 PMAQI
23rd Jul 20265012 AMAQI
23rd Jul 2026421 AMAQI
23rd Jul 2026442 AMAQI
23rd Jul 2026463 AMAQI
23rd Jul 2026464 AMAQI

29°C21/40°C

23rd Jul 2026445 AMAQI
23rd Jul 2026426 AMAQI
23rd Jul 2026447 AMAQI
23rd Jul 2026448 AMAQI
23rd Jul 2026429 AMAQI
23rd Jul 20264410 AMAQI
23rd Jul 20264611 AMAQI
23rd Jul 20264212 PMAQI
23rd Jul 2026401 PMAQI
23rd Jul 2026542 PMAQI
23rd Jul 2026583 PMAQI
23rd Jul 2026714 PMAQI
23rd Jul 2026245 PMAQI
23rd Jul 2026236 PMAQI
23rd Jul 2026747 PMAQI
23rd Jul 2026718 PMAQI
23rd Jul 2026689 PMAQI
23rd Jul 20266810 PMAQI
23rd Jul 202611511 PMAQI
24th Jul 20264012 AMAQI
24th Jul 2026541 AMAQI
24th Jul 2026402 AMAQI
24th Jul 2026583 AMAQI
24th Jul 2026424 AMAQI

21°C17/29°C

24th Jul 2026425 AMAQI
24th Jul 2026446 AMAQI
24th Jul 2026507 AMAQI
24th Jul 2026658 AMAQI
24th Jul 2026679 AMAQI
24th Jul 20266910 AMAQI
24th Jul 20267211 AMAQI
24th Jul 20266912 PMAQI
24th Jul 2026731 PMAQI
24th Jul 2026682 PMAQI
24th Jul 2026583 PMAQI
24th Jul 2026584 PMAQI
24th Jul 2026685 PMAQI
24th Jul 2026746 PMAQI
24th Jul 2026657 PMAQI
24th Jul 2026708 PMAQI
24th Jul 2026659 PMAQI
24th Jul 20265610 PMAQI
24th Jul 20265411 PMAQI
25th Jul 20265412 AMAQI
25th Jul 2026571 AMAQI
25th Jul 2026672 AMAQI
25th Jul 2026633 AMAQI
25th Jul 2026564 AMAQI

23°C16/33°C

25th Jul 2026605 AMAQI
25th Jul 2026466 AMAQI
25th Jul 2026567 AMAQI
25th Jul 2026628 AMAQI
25th Jul 2026579 AMAQI
25th Jul 20265410 AMAQI
25th Jul 20266411 AMAQI
25th Jul 20266012 PMAQI
25th Jul 2026601 PMAQI
25th Jul 2026682 PMAQI
25th Jul 2026603 PMAQI
25th Jul 2026584 PMAQI
25th Jul 2026665 PMAQI
25th Jul 2026646 PMAQI
25th Jul 2026687 PMAQI
25th Jul 2026888 PMAQI
25th Jul 2026869 PMAQI
25th Jul 20265610 PMAQI
25th Jul 20265811 PMAQI
26th Jul 20266212 AMAQI
26th Jul 2026621 AMAQI
26th Jul 2026602 AMAQI
26th Jul 2026523 AMAQI
26th Jul 2026444 AMAQI

20°C15/24°C

26th Jul 2026665 AMAQI
26th Jul 2026676 AMAQI
26th Jul 2026697 AMAQI
26th Jul 2026678 AMAQI
26th Jul 2026659 AMAQI
26th Jul 20267110 AMAQI
26th Jul 20265911 AMAQI
26th Jul 20266012 PMAQI
26th Jul 2026431 PMAQI
26th Jul 2026572 PMAQI
26th Jul 2026923 PMAQI
26th Jul 2026564 PMAQI
26th Jul 2026605 PMAQI
26th Jul 2026546 PMAQI
26th Jul 2026677 PMAQI
26th Jul 2026608 PMAQI
26th Jul 2026429 PMAQI
26th Jul 20266410 PMAQI
26th Jul 20266211 PMAQI
27th Jul 20266612 AMAQI
27th Jul 2026551 AMAQI
27th Jul 2026232 AMAQI
27th Jul 2026463 AMAQI
27th Jul 2026444 AMAQI

20°C15/28°C

27th Jul 2026655 AMAQI
27th Jul 2026726 AMAQI
27th Jul 2026747 AMAQI
27th Jul 2026678 AMAQI
27th Jul 2026729 AMAQI
27th Jul 20267610 AMAQI
27th Jul 20267211 AMAQI
27th Jul 20266512 PMAQI
27th Jul 2026461 PMAQI
27th Jul 2026652 PMAQI
27th Jul 2026583 PMAQI
27th Jul 2026634 PMAQI
27th Jul 2026495 PMAQI
27th Jul 2026436 PMAQI
27th Jul 2026677 PMAQI
27th Jul 2026698 PMAQI
27th Jul 2026809 PMAQI
27th Jul 20266410 PMAQI
27th Jul 20266311 PMAQI
28th Jul 20268812 AMAQI
28th Jul 20261101 AMAQI
28th Jul 2026812 AMAQI
28th Jul 2026603 AMAQI
28th Jul 2026604 AMAQI

22°C14/31°C

28th Jul 2026665 AMAQI
28th Jul 2026526 AMAQI
28th Jul 2026747 AMAQI
28th Jul 2026768 AMAQI
28th Jul 2026729 AMAQI
28th Jul 20267610 AMAQI
28th Jul 20267311 AMAQI
28th Jul 20267212 PMAQI
28th Jul 2026621 PMAQI
28th Jul 2026462 PMAQI
28th Jul 2026603 PMAQI
28th Jul 2026714 PMAQI
28th Jul 2026665 PMAQI
28th Jul 2026486 PMAQI
28th Jul 2026467 PMAQI
28th Jul 2026608 PMAQI
28th Jul 2026599 PMAQI
28th Jul 20265210 PMAQI
28th Jul 20261911 PMAQI
29th Jul 20262012 AMAQI
29th Jul 2026191 AMAQI
29th Jul 2026202 AMAQI
29th Jul 2026213 AMAQI
29th Jul 2026244 AMAQI

20°C16/27°C

29th Jul 2026665 AMAQI
29th Jul 2026606 AMAQI
29th Jul 2026647 AMAQI
29th Jul 2026588 AMAQI
29th Jul 2026729 AMAQI
29th Jul 20264910 AMAQI
29th Jul 20267011 AMAQI
29th Jul 20267012 PMAQI
29th Jul 2026691 PMAQI
29th Jul 2026722 PMAQI
29th Jul 2026713 PMAQI
29th Jul 2026294 PMAQI
29th Jul 2026695 PMAQI
29th Jul 2026666 PMAQI
29th Jul 2026647 PMAQI
29th Jul 2026428 PMAQI
29th Jul 2026609 PMAQI
29th Jul 20266710 PMAQI
29th Jul 20266011 PMAQI
30th Jul 20266612 AMAQI
30th Jul 2026681 AMAQI
30th Jul 2026642 AMAQI
30th Jul 2026553 AMAQI
30th Jul 2026544 AMAQI

20°C14/29°C

30th Jul 2026525 AMAQI
30th Jul 2026636 AMAQI
30th Jul 2026747 AMAQI
30th Jul 2026658 AMAQI
30th Jul 2026689 AMAQI
30th Jul 20267010 AMAQI
30th Jul 20266711 AMAQI
30th Jul 20266912 PMAQI
30th Jul 2026741 PMAQI
30th Jul 2026652 PMAQI
30th Jul 2026563 PMAQI
30th Jul 2026764 PMAQI
30th Jul 2026655 PMAQI
30th Jul 2026656 PMAQI
30th Jul 2026677 PMAQI
30th Jul 2026748 PMAQI
30th Jul 2026899 PMAQI
30th Jul 20267210 PMAQI
30th Jul 20265011 PMAQI
31st Jul 20265412 AMAQI
31st Jul 2026491 AMAQI
31st Jul 2026522 AMAQI
31st Jul 2026543 AMAQI
31st Jul 2026634 AMAQI

21°C13/30°C

31st Jul 2026645 AMAQI
31st Jul 2026696 AMAQI
31st Jul 2026637 AMAQI
31st Jul 2026628 AMAQI
31st Jul 2026629 AMAQI
31st Jul 20265210 AMAQI
31st Jul 20266411 AMAQI
31st Jul 20267112 PMAQI
31st Jul 2026441 PMAQI
31st Jul 2026552 PMAQI
31st Jul 2026623 PMAQI
31st Jul 2026584 PMAQI
31st Jul 2026585 PMAQI
31st Jul 2026426 PMAQI
31st Jul 2026477 PMAQI
31st Jul 2026408 PMAQI
31st Jul 2026519 PMAQI
31st Jul 20265610 PMAQI
31st Jul 20264811 PMAQI
1st Aug 20265612 AMAQI
1st Aug 2026421 AMAQI
1st Aug 2026452 AMAQI
1st Aug 2026603 AMAQI
1st Aug 2026624 AMAQI

23°C14/33°C

1st Aug 2026675 AMAQI
1st Aug 2026666 AMAQI
1st Aug 2026737 AMAQI
1st Aug 2026648 AMAQI
1st Aug 2026669 AMAQI
1st Aug 20266710 AMAQI
1st Aug 20266811 AMAQI
1st Aug 202612612 PMAQI
1st Aug 2026651 PMAQI
1st Aug 2026542 PMAQI
1st Aug 2026423 PMAQI
1st Aug 2026194 PMAQI
1st Aug 2026205 PMAQI
1st Aug 2026326 PMAQI
1st Aug 2026867 PMAQI
1st Aug 2026228 PMAQI
1st Aug 2026189 PMAQI
1st Aug 20261910 PMAQI
1st Aug 20261811 PMAQI
2nd Aug 20265412 AMAQI
2nd Aug 2026561 AMAQI
2nd Aug 2026582 AMAQI
2nd Aug 2026503 AMAQI
2nd Aug 2026464 AMAQI

19°C16/23°C

2nd Aug 2026425 AMAQI
2nd Aug 2026186 AMAQI
2nd Aug 2026547 AMAQI
2nd Aug 2026658 AMAQI
2nd Aug 2026659 AMAQI
2nd Aug 20266810 AMAQI
2nd Aug 20267311 AMAQI
2nd Aug 20266212 PMAQI
2nd Aug 2026601 PMAQI
2nd Aug 2026542 PMAQI
2nd Aug 2026543 PMAQI
2nd Aug 2026524 PMAQI
2nd Aug 2026425 PMAQI
2nd Aug 2026256 PMAQI
2nd Aug 2026207 PMAQI
2nd Aug 2026468 PMAQI
2nd Aug 2026609 PMAQI
2nd Aug 20266510 PMAQI
2nd Aug 20265811 PMAQI
3rd Aug 20266212 AMAQI
3rd Aug 2026661 AMAQI
3rd Aug 2026712 AMAQI
3rd Aug 2026503 AMAQI
3rd Aug 2026584 AMAQI

18°C12/25°C

3rd Aug 2026585 AMAQI
3rd Aug 2026566 AMAQI
3rd Aug 2026567 AMAQI
3rd Aug 2026588 AMAQI
3rd Aug 2026509 AMAQI
3rd Aug 20265210 AMAQI
3rd Aug 20266611 AMAQI
3rd Aug 20269012 PMAQI
3rd Aug 2026441 PMAQI
3rd Aug 2026522 PMAQI
3rd Aug 2026653 PMAQI
3rd Aug 2026744 PMAQI
3rd Aug 2026715 PMAQI
3rd Aug 2026646 PMAQI
3rd Aug 2026677 PMAQI
3rd Aug 2026708 PMAQI
3rd Aug 2026669 PMAQI
3rd Aug 20266510 PMAQI
3rd Aug 20266511 PMAQI
4th Aug 20267812 AMAQI
4th Aug 2026721 AMAQI
4th Aug 2026782 AMAQI
4th Aug 2026743 AMAQI
4th Aug 2026684 AMAQI

21°C12/32°C

4th Aug 2026725 AMAQI
4th Aug 2026756 AMAQI
4th Aug 2026807 AMAQI
4th Aug 2026748 AMAQI
4th Aug 2026859 AMAQI
4th Aug 20267210 AMAQI
4th Aug 20266911 AMAQI
4th Aug 20267812 PMAQI
4th Aug 2026751 PMAQI
4th Aug 2026682 PMAQI
4th Aug 2026653 PMAQI
4th Aug 2026554 PMAQI
4th Aug 2026705 PMAQI
4th Aug 2026766 PMAQI
4th Aug 2026727 PMAQI
4th Aug 2026708 PMAQI
4th Aug 2026669 PMAQI
4th Aug 20267210 PMAQI
4th Aug 20266711 PMAQI
5th Aug 20266512 AMAQI
5th Aug 2026691 AMAQI
5th Aug 2026692 AMAQI
5th Aug 2026723 AMAQI
5th Aug 2026744 AMAQI

24°C14/36°C

5th Aug 2026755 AMAQI
5th Aug 2026746 AMAQI
5th Aug 2026707 AMAQI
5th Aug 2026698 AMAQI
5th Aug 2026699 AMAQI
5th Aug 20266910 AMAQI
5th Aug 20267011 AMAQI
5th Aug 20266912 PMAQI
5th Aug 2026701 PMAQI
5th Aug 2026782 PMAQI
5th Aug 2026813 PMAQI
5th Aug 2026784 PMAQI
5th Aug 2026865 PMAQI
5th Aug 2026786 PMAQI
5th Aug 2026697 PMAQI
5th Aug 2026738 PMAQI
5th Aug 2026659 PMAQI
5th Aug 20266910 PMAQI
5th Aug 20266511 PMAQI
6th Aug 20266412 AMAQI
6th Aug 2026741 AMAQI
6th Aug 2026682 AMAQI
6th Aug 2026743 AMAQI
6th Aug 2026704 AMAQI

24°C15/35°C

6th Aug 2026735 AMAQI
6th Aug 2026746 AMAQI
6th Aug 2026677 AMAQI
6th Aug 2026728 AMAQI
6th Aug 2026799 AMAQI
6th Aug 20267310 AMAQI
6th Aug 20267411 AMAQI
6th Aug 20267012 PMAQI
6th Aug 2026801 PMAQI
6th Aug 2026742 PMAQI
6th Aug 2026723 PMAQI
6th Aug 2026824 PMAQI
6th Aug 2026715 PMAQI
6th Aug 2026726 PMAQI
6th Aug 2026737 PMAQI
6th Aug 2026768 PMAQI
6th Aug 2026649 PMAQI
6th Aug 20266710 PMAQI
6th Aug 20266511 PMAQI
7th Aug 20266412 AMAQI
7th Aug 2026591 AMAQI
7th Aug 2026562 AMAQI
7th Aug 2026563 AMAQI
7th Aug 2026544 AMAQI

25°C15/36°C

7th Aug 2026535 AMAQI
7th Aug 2026536 AMAQI
7th Aug 2026547 AMAQI
7th Aug 2026548 AMAQI
7th Aug 2026539 AMAQI
7th Aug 20264410 AMAQI
7th Aug 20265011 AMAQI
7th Aug 20264812 PMAQI
7th Aug 2026461 PMAQI
7th Aug 2026522 PMAQI
7th Aug 2026533 PMAQI
7th Aug 2026554 PMAQI
7th Aug 2026535 PMAQI
7th Aug 2026516 PMAQI
7th Aug 2026517 PMAQI
7th Aug 2026508 PMAQI
7th Aug 2026519 PMAQI
7th Aug 20265310 PMAQI
7th Aug 20265111 PMAQI
8th Aug 20265212 AMAQI
8th Aug 2026531 AMAQI
8th Aug 2026462 AMAQI
8th Aug 2026503 AMAQI
8th Aug 2026504 AMAQI

24°C16/34°C

8th Aug 2026485 AMAQI
8th Aug 2026546 AMAQI
8th Aug 2026537 AMAQI
8th Aug 2026468 AMAQI
8th Aug 2026449 AMAQI
8th Aug 20262510 AMAQI
8th Aug 20262711 AMAQI
8th Aug 20262312 PMAQI
8th Aug 2026381 PMAQI
8th Aug 2026602 PMAQI
8th Aug 2026583 PMAQI
8th Aug 2026584 PMAQI
8th Aug 2026525 PMAQI
8th Aug 2026466 PMAQI
8th Aug 2026467 PMAQI
8th Aug 2026678 PMAQI
8th Aug 2026589 PMAQI
8th Aug 20265110 PMAQI
8th Aug 20268711 PMAQI
9th Aug 202612512 AMAQI
9th Aug 20261181 AMAQI
9th Aug 20261082 AMAQI
9th Aug 2026923 AMAQI
9th Aug 20261054 AMAQI

23°C16/34°C

9th Aug 2026895 AMAQI
9th Aug 2026746 AMAQI
9th Aug 2026667 AMAQI
9th Aug 2026768 AMAQI
9th Aug 2026509 AMAQI
9th Aug 20268010 AMAQI
9th Aug 20268211 AMAQI
9th Aug 20265812 PMAQI
9th Aug 2026901 PMAQI
9th Aug 20261102 PMAQI
9th Aug 20261113 PMAQI
9th Aug 2026624 PMAQI
9th Aug 2026215 PMAQI
9th Aug 2026706 PMAQI
9th Aug 20261147 PMAQI
9th Aug 20261088 PMAQI
9th Aug 2026649 PMAQI
9th Aug 20266010 PMAQI
9th Aug 20265811 PMAQI
10th Aug 20265412 AMAQI
10th Aug 2026601 AMAQI
10th Aug 2026602 AMAQI
10th Aug 2026463 AMAQI
10th Aug 2026744 AMAQI

21°C14/31°C

10th Aug 2026845 AMAQI
10th Aug 2026426 AMAQI
10th Aug 2026547 AMAQI
10th Aug 2026688 AMAQI
10th Aug 2026769 AMAQI
10th Aug 20267110 AMAQI
10th Aug 20266911 AMAQI
10th Aug 20265112 PMAQI
10th Aug 2026561 PMAQI
10th Aug 2026692 PMAQI
10th Aug 2026783 PMAQI
10th Aug 2026734 PMAQI
10th Aug 2026485 PMAQI
10th Aug 2026756 PMAQI
10th Aug 2026727 PMAQI
10th Aug 2026768 PMAQI
10th Aug 2026689 PMAQI
10th Aug 20264810 PMAQI
10th Aug 20266711 PMAQI
11th Aug 20266212 AMAQI
11th Aug 2026491 AMAQI
11th Aug 2026602 AMAQI
11th Aug 2026763 AMAQI
11th Aug 2026744 AMAQI

20°C14/29°C

11th Aug 2026865 AMAQI
11th Aug 2026736 AMAQI
11th Aug 2026817 AMAQI
11th Aug 2026728 AMAQI
11th Aug 2026699 AMAQI
11th Aug 20267010 AMAQI
11th Aug 20267111 AMAQI
11th Aug 20267012 PMAQI
11th Aug 2026691 PMAQI
11th Aug 2026662 PMAQI
11th Aug 2026623 PMAQI
11th Aug 2026634 PMAQI
11th Aug 2026565 PMAQI
11th Aug 2026546 PMAQI
11th Aug 2026547 PMAQI
11th Aug 2026608 PMAQI
11th Aug 2026649 PMAQI
11th Aug 20266410 PMAQI
11th Aug 20264211 PMAQI
12th Aug 20266412 AMAQI
12th Aug 2026761 AMAQI
12th Aug 2026672 AMAQI
12th Aug 2026653 AMAQI
12th Aug 2026584 AMAQI

20°C14/30°C

12th Aug 2026635 AMAQI
12th Aug 2026606 AMAQI
12th Aug 2026737 AMAQI
12th Aug 2026728 AMAQI
12th Aug 2026789 AMAQI
12th Aug 20267810 AMAQI
12th Aug 20265411 AMAQI
12th Aug 20265212 PMAQI
12th Aug 2026691 PMAQI
12th Aug 2026842 PMAQI
12th Aug 2026673 PMAQI
12th Aug 2026644 PMAQI
12th Aug 2026435 PMAQI
12th Aug 2026686 PMAQI
12th Aug 2026727 PMAQI
12th Aug 2026688 PMAQI
12th Aug 2026889 PMAQI
12th Aug 20264510 PMAQI
12th Aug 20265211 PMAQI
13th Aug 20266012 AMAQI
13th Aug 2026661 AMAQI
13th Aug 2026622 AMAQI
13th Aug 2026563 AMAQI
13th Aug 2026684 AMAQI

21°C17/28°C

13th Aug 2026525 AMAQI
13th Aug 2026526 AMAQI
13th Aug 2026717 AMAQI
13th Aug 2026528 AMAQI
13th Aug 2026849 AMAQI
13th Aug 20267610 AMAQI
13th Aug 20266811 AMAQI
13th Aug 20266712 PMAQI
13th Aug 2026671 PMAQI
13th Aug 2026682 PMAQI
13th Aug 2026763 PMAQI
13th Aug 2026464 PMAQI
13th Aug 2026485 PMAQI
13th Aug 2026536 PMAQI
13th Aug 2026597 PMAQI
13th Aug 2026628 PMAQI
13th Aug 2026589 PMAQI
13th Aug 20264810 PMAQI
13th Aug 20265011 PMAQI
14th Aug 20265212 AMAQI
14th Aug 2026481 AMAQI
14th Aug 2026462 AMAQI
14th Aug 2026483 AMAQI
14th Aug 2026444 AMAQI

20°C15/29°C

14th Aug 2026405 AMAQI
5 AM
14th Aug 2026426 AMAQI
14th Aug 2026387 AMAQI
14th Aug 2026368 AMAQI
14th Aug 2026349 AMAQI
14th Aug 20263610 AMAQI
14th Aug 20265311 AMAQI
14th Aug 20266212 PMAQI
12 PM
14th Aug 2026421 PMAQI
14th Aug 2026442 PMAQI
14th Aug 2026423 PMAQI
14th Aug 2026444 PMAQI
14th Aug 2026445 PMAQI
14th Aug 2026466 PMAQI
14th Aug 2026517 PMAQI
14th Aug 2026488 PMAQI
8 PM
14th Aug 2026519 PMAQI
14th Aug 20264410 PMAQI
14th Aug 20266011 PMAQI
12 AM
4 AM

21°C16/29°C

Day time
Avg. Highest Time
11 AM - 12 PM

64AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
5 PM - 6 PM

55AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 12 PM (Avg. 64), while the lowest AQI was between 5 PM to 6 PM (Avg. 55).
Night time
Avg. Highest Time
3 AM - 9 PM

60AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
10 PM - 11 PM

56AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 9 PM (Avg. 60), while the lowest AQI was between 10 PM to 11 PM (Avg. 56).

2026 Days Vs Air Quality

Sumner, Portland, Oregon, United States

2026

83%

185

17%

38

Total number of days with different AQI categories in last 226 days in 2026 (139 days remaining)

Good
185 Days
Moderate
38 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 83%

Health Risk Level:

Low

In 2026, 83% of 226 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

Sumner, Portland, Oregon, United States

AQI levels in 2026

AQI (US)
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.

-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
28AQI (US)
2nd January 2026
14AQI (US)
3rd January 2026
21AQI (US)
4th January 2026
12AQI (US)
5th January 2026
21AQI (US)
6th January 2026
29AQI (US)
7th January 2026
10AQI (US)
8th January 2026
13AQI (US)
9th January 2026
15AQI (US)
10th January 2026
41AQI (US)
11th January 2026
24AQI (US)
12th January 2026
34AQI (US)
13th January 2026
58AQI (US)
14th January 2026
64AQI (US)
15th January 2026
43AQI (US)
16th January 2026
20AQI (US)
17th January 2026
19AQI (US)
18th January 2026
27AQI (US)
19th January 2026
21AQI (US)
20th January 2026
33AQI (US)
21st January 2026
26AQI (US)
22nd January 2026
49AQI (US)
23rd January 2026
54AQI (US)
24th January 2026
50AQI (US)
25th January 2026
46AQI (US)
26th January 2026
47AQI (US)
27th January 2026
44AQI (US)
28th January 2026
48AQI (US)
29th January 2026
52AQI (US)
30th January 2026
49AQI (US)
31st January 2026
46AQI (US)
1st February 2026
48AQI (US)
2nd February 2026
50AQI (US)
3rd February 2026
50AQI (US)
4th February 2026
49AQI (US)
5th February 2026
47AQI (US)
6th February 2026
41AQI (US)
7th February 2026
42AQI (US)
8th February 2026
47AQI (US)
9th February 2026
46AQI (US)
10th February 2026
48AQI (US)
11th February 2026
47AQI (US)
12th February 2026
48AQI (US)
13th February 2026
54AQI (US)
14th February 2026
50AQI (US)
15th February 2026
42AQI (US)
16th February 2026
45AQI (US)
17th February 2026
47AQI (US)
18th February 2026
42AQI (US)
19th February 2026
43AQI (US)
20th February 2026
43AQI (US)
21st February 2026
37AQI (US)
22nd February 2026
37AQI (US)
23rd February 2026
41AQI (US)
24th February 2026
44AQI (US)
25th February 2026
41AQI (US)
26th February 2026
35AQI (US)
27th February 2026
34AQI (US)
28th February 2026
40AQI (US)
1st March 2026
44AQI (US)
2nd March 2026
55AQI (US)
3rd March 2026
47AQI (US)
4th March 2026
46AQI (US)
5th March 2026
43AQI (US)
6th March 2026
38AQI (US)
7th March 2026
40AQI (US)
8th March 2026
40AQI (US)
9th March 2026
40AQI (US)
10th March 2026
36AQI (US)
11th March 2026
42AQI (US)
12th March 2026
42AQI (US)
13th March 2026
41AQI (US)
14th March 2026
36AQI (US)
15th March 2026
36AQI (US)
16th March 2026
37AQI (US)
17th March 2026
34AQI (US)
18th March 2026
33AQI (US)
19th March 2026
33AQI (US)
20th March 2026
38AQI (US)
21st March 2026
36AQI (US)
22nd March 2026
37AQI (US)
23rd March 2026
40AQI (US)
24th March 2026
38AQI (US)
25th March 2026
35AQI (US)
26th March 2026
33AQI (US)
27th March 2026
32AQI (US)
28th March 2026
35AQI (US)
29th March 2026
30AQI (US)
30th March 2026
28AQI (US)
31st March 2026
27AQI (US)
1st April 2026
34AQI (US)
2nd April 2026
35AQI (US)
3rd April 2026
28AQI (US)
4th April 2026
31AQI (US)
5th April 2026
29AQI (US)
6th April 2026
27AQI (US)
7th April 2026
27AQI (US)
8th April 2026
31AQI (US)
9th April 2026
29AQI (US)
10th April 2026
33AQI (US)
11th April 2026
34AQI (US)
12th April 2026
29AQI (US)
13th April 2026
35AQI (US)
14th April 2026
37AQI (US)
15th April 2026
34AQI (US)
16th April 2026
32AQI (US)
17th April 2026
18th April 2026
34AQI (US)
19th April 2026
35AQI (US)
20th April 2026
30AQI (US)
21st April 2026
29AQI (US)
22nd April 2026
23rd April 2026
28AQI (US)
24th April 2026
31AQI (US)
25th April 2026
33AQI (US)
26th April 2026
34AQI (US)
27th April 2026
29AQI (US)
28th April 2026
25AQI (US)
29th April 2026
24AQI (US)
30th April 2026
27AQI (US)
1st May 2026
28AQI (US)
2nd May 2026
25AQI (US)
3rd May 2026
22AQI (US)
4th May 2026
29AQI (US)
5th May 2026
34AQI (US)
6th May 2026
32AQI (US)
7th May 2026
29AQI (US)
8th May 2026
28AQI (US)
9th May 2026
10th May 2026
35AQI (US)
11th May 2026
31AQI (US)
12th May 2026
30AQI (US)
13th May 2026
30AQI (US)
14th May 2026
26AQI (US)
15th May 2026
45AQI (US)
16th May 2026
52AQI (US)
17th May 2026
59AQI (US)
18th May 2026
57AQI (US)
19th May 2026
55AQI (US)
20th May 2026
51AQI (US)
21st May 2026
41AQI (US)
22nd May 2026
50AQI (US)
23rd May 2026
49AQI (US)
24th May 2026
47AQI (US)
25th May 2026
43AQI (US)
26th May 2026
27AQI (US)
27th May 2026
28AQI (US)
28th May 2026
27AQI (US)
29th May 2026
26AQI (US)
30th May 2026
28AQI (US)
31st May 2026
29AQI (US)
1st June 2026
31AQI (US)
2nd June 2026
31AQI (US)
3rd June 2026
30AQI (US)
4th June 2026
26AQI (US)
5th June 2026
28AQI (US)
6th June 2026
26AQI (US)
7th June 2026
24AQI (US)
8th June 2026
27AQI (US)
9th June 2026
26AQI (US)
10th June 2026
28AQI (US)
11th June 2026
27AQI (US)
12th June 2026
27AQI (US)
13th June 2026
25AQI (US)
14th June 2026
24AQI (US)
15th June 2026
26AQI (US)
16th June 2026
27AQI (US)
17th June 2026
28AQI (US)
18th June 2026
27AQI (US)
19th June 2026
25AQI (US)
20th June 2026
25AQI (US)
21st June 2026
23AQI (US)
22nd June 2026
25AQI (US)
23rd June 2026
25AQI (US)
24th June 2026
25AQI (US)
25th June 2026
25AQI (US)
26th June 2026
28AQI (US)
27th June 2026
30AQI (US)
28th June 2026
27AQI (US)
29th June 2026
25AQI (US)
30th June 2026
27AQI (US)
1st July 2026
27AQI (US)
2nd July 2026
27AQI (US)
3rd July 2026
28AQI (US)
4th July 2026
25AQI (US)
5th July 2026
25AQI (US)
6th July 2026
27AQI (US)
7th July 2026
29AQI (US)
8th July 2026
27AQI (US)
9th July 2026
29AQI (US)
10th July 2026
32AQI (US)
11th July 2026
30AQI (US)
12th July 2026
29AQI (US)
13th July 2026
31AQI (US)
14th July 2026
30AQI (US)
15th July 2026
28AQI (US)
16th July 2026
29AQI (US)
17th July 2026
62AQI (US)
18th July 2026
60AQI (US)
19th July 2026
61AQI (US)
20th July 2026
59AQI (US)
21st July 2026
56AQI (US)
22nd July 2026
56AQI (US)
23rd July 2026
52AQI (US)
24th July 2026
59AQI (US)
25th July 2026
62AQI (US)
26th July 2026
61AQI (US)
27th July 2026
61AQI (US)
28th July 2026
65AQI (US)
29th July 2026
53AQI (US)
30th July 2026
66AQI (US)
31st July 2026
56AQI (US)
1st August 2026
52AQI (US)
2nd August 2026
52AQI (US)
3rd August 2026
62AQI (US)
4th August 2026
72AQI (US)
5th August 2026
72AQI (US)
6th August 2026
72AQI (US)
7th August 2026
53AQI (US)
8th August 2026
50AQI (US)
9th August 2026
83AQI (US)
10th August 2026
64AQI (US)
11th August 2026
65AQI (US)
12th August 2026
66AQI (US)
13th August 2026
61AQI (US)
14th August 2026
46AQI (US)
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

34AQI (US)

44AQI (US)

38AQI (US)

31AQI (US)

36AQI (US)

27AQI (US)

43AQI (US)

62AQI (US)

No. of days

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

202638AQI (US)

27
4
27
1
30
1
28
25
5
30
16
15
2
12
185
38

Highest AQI (US) recorded in

August

62AQI (US)

Lowest AQI (US) recorded in

June

27AQI (US)

202529AQI (US)

6
30
31
30
31
30
1
26
4
26
5
22
8
25
6
257
24

Highest AQI (US) recorded in

November

40AQI (US)

Lowest AQI (US) recorded in

May

20AQI (US)

Most & Least Polluted Years Over the Last 2 Years

Most Polluted Year Recorded
2026(Avg.)
38AQI (US)
Least Polluted Year Recorded
2025(Avg.)
29AQI (US)

Sumner's annual 2026 AQI (US) (38) shows an average percentage change of 31.03% (worsened AQI (US)) compared to previous years: 2025 (29).