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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Roseway, 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

Roseway, Portland, Oregon, United States

2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
9th Aug 2026
82AQI
Lowest AQI recorded on
16th Aug 2025
13AQI

Same Day Analysis (17th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 53 of Moderate air quality on the same day.

Day & Night AQI Trend: 17th Aug - 18th Aug 2026

Roseway, Portland, Oregon, United States

AQI
Day
Night
.

5 AM17th Aug 2026

8 PM

4 AM18th Aug 2026

Day time
Avg. Highest Time
9AM17th Aug

63AQI

Avg. Lowest Time
5PM17th Aug

42AQI

Night time
Avg. Highest Time
5AM17th Aug

66AQI

Avg. Lowest Time
3AM18th Aug

44AQI

In the last 24 hours,

Roseway's AQI reached its highest point of 66 at 5 AM during the Night, while the lowest point, 42, was recorded at 5 PM during the Day between 17th Aug and 18th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Roseway, Portland, Oregon, United States

JulAug
20th - 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 - 15th15th - 16th16th - 17th17th - 18th18th
Day
Night
20th Jul 2026615 AMAQI
20th Jul 2026606 AMAQI
20th Jul 2026737 AMAQI
20th Jul 2026508 AMAQI
20th Jul 2026549 AMAQI
20th Jul 20263210 AMAQI
20th Jul 20264311 AMAQI
20th Jul 20265412 PMAQI
20th Jul 2026441 PMAQI
20th Jul 2026402 PMAQI
20th Jul 2026463 PMAQI
20th Jul 2026484 PMAQI
20th Jul 2026565 PMAQI
20th Jul 2026386 PMAQI
20th Jul 2026447 PMAQI
20th Jul 2026429 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20264411 PMAQI
21st Jul 20264412 AMAQI
21st Jul 2026461 AMAQI
21st Jul 2026442 AMAQI
21st Jul 2026503 AMAQI
21st Jul 2026504 AMAQI

24°C16/34°C

21st Jul 2026485 AMAQI
21st Jul 2026506 AMAQI
21st Jul 2026487 AMAQI
21st Jul 2026518 AMAQI
21st Jul 2026519 AMAQI
21st Jul 20265110 AMAQI
21st Jul 20265011 AMAQI
21st Jul 20265012 PMAQI
21st Jul 2026541 PMAQI
21st Jul 2026562 PMAQI
21st Jul 2026593 PMAQI
21st Jul 2026664 PMAQI
21st Jul 2026695 PMAQI
21st Jul 2026686 PMAQI
21st Jul 2026687 PMAQI
21st Jul 2026718 PMAQI
21st Jul 2026629 PMAQI
21st Jul 20266210 PMAQI
21st Jul 20265511 PMAQI
22nd Jul 20265212 AMAQI
22nd Jul 2026531 AMAQI
22nd Jul 2026512 AMAQI
22nd Jul 2026513 AMAQI
22nd Jul 2026534 AMAQI

28°C17/40°C

22nd Jul 2026555 AMAQI
22nd Jul 2026516 AMAQI
22nd Jul 2026467 AMAQI
22nd Jul 2026468 AMAQI
22nd Jul 2026519 AMAQI
22nd Jul 20265110 AMAQI
22nd Jul 20265411 AMAQI
22nd Jul 20265812 PMAQI
22nd Jul 2026571 PMAQI
22nd Jul 2026642 PMAQI
22nd Jul 2026653 PMAQI
22nd Jul 2026674 PMAQI
22nd Jul 2026695 PMAQI
22nd Jul 2026646 PMAQI
22nd Jul 2026597 PMAQI
22nd Jul 2026598 PMAQI
22nd Jul 2026569 PMAQI
22nd Jul 20265510 PMAQI
22nd Jul 20265011 PMAQI
23rd Jul 20264812 AMAQI
23rd Jul 2026461 AMAQI
23rd Jul 2026402 AMAQI
23rd Jul 2026443 AMAQI
23rd Jul 2026444 AMAQI

29°C21/40°C

23rd Jul 2026425 AMAQI
23rd Jul 2026466 AMAQI
23rd Jul 2026447 AMAQI
23rd Jul 2026428 AMAQI
23rd Jul 2026429 AMAQI
23rd Jul 20264210 AMAQI
23rd Jul 20264411 AMAQI
23rd Jul 20264412 PMAQI
23rd Jul 2026421 PMAQI
23rd Jul 2026542 PMAQI
23rd Jul 2026583 PMAQI
23rd Jul 2026704 PMAQI
23rd Jul 2026255 PMAQI
23rd Jul 2026236 PMAQI
23rd Jul 2026727 PMAQI
23rd Jul 2026448 PMAQI
23rd Jul 2026589 PMAQI
23rd Jul 20266210 PMAQI
23rd Jul 20265411 PMAQI
24th Jul 20263012 AMAQI
24th Jul 2026381 AMAQI
24th Jul 2026412 AMAQI
24th Jul 2026583 AMAQI
24th Jul 2026464 AMAQI

21°C17/29°C

24th Jul 2026385 AMAQI
24th Jul 2026406 AMAQI
24th Jul 2026507 AMAQI
24th Jul 2026658 AMAQI
24th Jul 2026679 AMAQI
24th Jul 20267010 AMAQI
24th Jul 20267311 AMAQI
24th Jul 20266812 PMAQI
24th Jul 2026731 PMAQI
24th Jul 2026682 PMAQI
24th Jul 2026553 PMAQI
24th Jul 2026584 PMAQI
24th Jul 2026745 PMAQI
24th Jul 2026706 PMAQI
24th Jul 2026647 PMAQI
24th Jul 2026678 PMAQI
24th Jul 2026609 PMAQI
24th Jul 20265610 PMAQI
24th Jul 20265511 PMAQI
25th Jul 20265412 AMAQI
25th Jul 2026571 AMAQI
25th Jul 2026662 AMAQI
25th Jul 2026633 AMAQI
25th Jul 2026564 AMAQI

23°C16/33°C

25th Jul 2026605 AMAQI
25th Jul 2026466 AMAQI
25th Jul 2026537 AMAQI
25th Jul 2026628 AMAQI
25th Jul 2026569 AMAQI
25th Jul 20265410 AMAQI
25th Jul 20266311 AMAQI
25th Jul 20266212 PMAQI
25th Jul 2026601 PMAQI
25th Jul 2026662 PMAQI
25th Jul 2026603 PMAQI
25th Jul 2026574 PMAQI
25th Jul 2026685 PMAQI
25th Jul 2026696 PMAQI
25th Jul 2026677 PMAQI
25th Jul 2026858 PMAQI
25th Jul 2026849 PMAQI
25th Jul 20265410 PMAQI
25th Jul 20264011 PMAQI
26th Jul 20264812 AMAQI
26th Jul 2026581 AMAQI
26th Jul 2026382 AMAQI
26th Jul 2026523 AMAQI
26th Jul 2026474 AMAQI

20°C15/24°C

26th Jul 2026645 AMAQI
26th Jul 2026666 AMAQI
26th Jul 2026727 AMAQI
26th Jul 2026678 AMAQI
26th Jul 2026649 AMAQI
26th Jul 20267310 AMAQI
26th Jul 20265911 AMAQI
26th Jul 20266012 PMAQI
26th Jul 2026621 PMAQI
26th Jul 2026572 PMAQI
26th Jul 2026583 PMAQI
26th Jul 2026554 PMAQI
26th Jul 2026545 PMAQI
26th Jul 2026546 PMAQI
26th Jul 2026667 PMAQI
26th Jul 2026568 PMAQI
26th Jul 2026429 PMAQI
26th Jul 20266010 PMAQI
26th Jul 20265811 PMAQI
27th Jul 20264012 AMAQI
27th Jul 2026551 AMAQI
27th Jul 2026222 AMAQI
27th Jul 2026363 AMAQI
27th Jul 2026484 AMAQI

20°C15/28°C

27th Jul 2026425 AMAQI
27th Jul 2026646 AMAQI
27th Jul 2026687 AMAQI
27th Jul 2026688 AMAQI
27th Jul 2026649 AMAQI
27th Jul 20267410 AMAQI
27th Jul 20267211 AMAQI
27th Jul 20266612 PMAQI
27th Jul 2026461 PMAQI
27th Jul 2026682 PMAQI
27th Jul 2026583 PMAQI
27th Jul 2026634 PMAQI
27th Jul 2026745 PMAQI
27th Jul 2026246 PMAQI
27th Jul 2026717 PMAQI
27th Jul 2026708 PMAQI
27th Jul 2026639 PMAQI
27th Jul 20264410 PMAQI
27th Jul 20266211 PMAQI
28th Jul 20265812 AMAQI
28th Jul 2026621 AMAQI
28th Jul 2026572 AMAQI
28th Jul 2026603 AMAQI
28th Jul 2026604 AMAQI

22°C14/31°C

28th Jul 2026675 AMAQI
28th Jul 2026546 AMAQI
28th Jul 2026267 AMAQI
28th Jul 2026548 AMAQI
28th Jul 2026709 AMAQI
28th Jul 20267410 AMAQI
28th Jul 20266711 AMAQI
28th Jul 20266812 PMAQI
28th Jul 2026601 PMAQI
28th Jul 2026462 PMAQI
28th Jul 2026623 PMAQI
28th Jul 2026514 PMAQI
28th Jul 2026235 PMAQI
28th Jul 2026276 PMAQI
28th Jul 2026487 PMAQI
28th Jul 2026228 PMAQI
28th Jul 2026429 PMAQI
28th Jul 20265210 PMAQI
28th Jul 20261811 PMAQI
29th Jul 20261812 AMAQI
29th Jul 2026181 AMAQI
29th Jul 2026212 AMAQI
29th Jul 2026223 AMAQI
29th Jul 2026254 AMAQI

20°C16/27°C

29th Jul 2026695 AMAQI
29th Jul 2026686 AMAQI
29th Jul 2026457 AMAQI
29th Jul 2026628 AMAQI
29th Jul 2026699 AMAQI
29th Jul 20262910 AMAQI
29th Jul 20264111 AMAQI
29th Jul 20267012 PMAQI
29th Jul 2026651 PMAQI
29th Jul 2026702 PMAQI
29th Jul 2026713 PMAQI
29th Jul 2026384 PMAQI
29th Jul 2026235 PMAQI
29th Jul 2026406 PMAQI
29th Jul 2026587 PMAQI
29th Jul 2026458 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20266710 PMAQI
29th Jul 20262511 PMAQI
30th Jul 20262312 AMAQI
30th Jul 2026521 AMAQI
30th Jul 2026702 AMAQI
30th Jul 2026523 AMAQI
30th Jul 2026404 AMAQI

20°C14/29°C

30th Jul 2026525 AMAQI
30th Jul 2026636 AMAQI
30th Jul 2026687 AMAQI
30th Jul 2026638 AMAQI
30th Jul 2026639 AMAQI
30th Jul 20266210 AMAQI
30th Jul 20266211 AMAQI
30th Jul 20266812 PMAQI
30th Jul 2026721 PMAQI
30th Jul 2026602 PMAQI
30th Jul 2026643 PMAQI
30th Jul 2026654 PMAQI
30th Jul 2026605 PMAQI
30th Jul 2026626 PMAQI
30th Jul 2026667 PMAQI
30th Jul 2026658 PMAQI
30th Jul 2026899 PMAQI
30th Jul 20266810 PMAQI
30th Jul 20265011 PMAQI
31st Jul 20265412 AMAQI
31st Jul 2026491 AMAQI
31st Jul 2026522 AMAQI
31st Jul 2026543 AMAQI
31st Jul 2026604 AMAQI

21°C13/30°C

31st Jul 2026625 AMAQI
31st Jul 2026586 AMAQI
31st Jul 2026627 AMAQI
31st Jul 2026628 AMAQI
31st Jul 2026579 AMAQI
31st Jul 20263610 AMAQI
31st Jul 20265811 AMAQI
31st Jul 20266812 PMAQI
31st Jul 2026401 PMAQI
31st Jul 2026522 PMAQI
31st Jul 2026533 PMAQI
31st Jul 2026494 PMAQI
31st Jul 2026295 PMAQI
31st Jul 2026296 PMAQI
31st Jul 2026447 PMAQI
31st Jul 2026408 PMAQI
31st Jul 2026469 PMAQI
31st Jul 20265510 PMAQI
31st Jul 20265011 PMAQI
1st Aug 20265312 AMAQI
1st Aug 2026441 AMAQI
1st Aug 2026452 AMAQI
1st Aug 2026653 AMAQI
1st Aug 2026564 AMAQI

23°C14/33°C

1st Aug 2026665 AMAQI
1st Aug 2026426 AMAQI
1st Aug 2026697 AMAQI
1st Aug 2026608 AMAQI
1st Aug 2026649 AMAQI
1st Aug 20267110 AMAQI
1st Aug 20267011 AMAQI
1st Aug 20266512 PMAQI
1st Aug 2026631 PMAQI
1st Aug 2026542 PMAQI
1st Aug 2026423 PMAQI
1st Aug 2026204 PMAQI
1st Aug 2026315 PMAQI
1st Aug 2026456 PMAQI
1st Aug 2026367 PMAQI
1st Aug 2026248 PMAQI
1st Aug 2026259 PMAQI
1st Aug 20261910 PMAQI
1st Aug 20261811 PMAQI
2nd Aug 20265412 AMAQI
2nd Aug 2026441 AMAQI
2nd Aug 2026572 AMAQI
2nd Aug 2026503 AMAQI
2nd Aug 2026464 AMAQI

19°C16/23°C

2nd Aug 2026425 AMAQI
2nd Aug 2026206 AMAQI
2nd Aug 2026547 AMAQI
2nd Aug 2026658 AMAQI
2nd Aug 2026659 AMAQI
2nd Aug 20266710 AMAQI
2nd Aug 20267111 AMAQI
2nd Aug 20266212 PMAQI
2nd Aug 2026601 PMAQI
2nd Aug 2026542 PMAQI
2nd Aug 2026543 PMAQI
2nd Aug 2026524 PMAQI
2nd Aug 2026405 PMAQI
2nd Aug 2026236 PMAQI
2nd Aug 2026207 PMAQI
2nd Aug 2026468 PMAQI
2nd Aug 2026609 PMAQI
2nd Aug 20266710 PMAQI
2nd Aug 20265811 PMAQI
3rd Aug 20266312 AMAQI
3rd Aug 2026691 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 20265811 AMAQI
3rd Aug 20267512 PMAQI
3rd Aug 2026421 PMAQI
3rd Aug 2026542 PMAQI
3rd Aug 2026663 PMAQI
3rd Aug 2026704 PMAQI
3rd Aug 2026705 PMAQI
3rd Aug 2026686 PMAQI
3rd Aug 2026667 PMAQI
3rd Aug 2026718 PMAQI
3rd Aug 2026689 PMAQI
3rd Aug 20266210 PMAQI
3rd Aug 20266711 PMAQI
4th Aug 20267412 AMAQI
4th Aug 2026721 AMAQI
4th Aug 2026762 AMAQI
4th Aug 2026683 AMAQI
4th Aug 2026624 AMAQI

21°C12/32°C

4th Aug 2026685 AMAQI
4th Aug 2026706 AMAQI
4th Aug 2026787 AMAQI
4th Aug 2026698 AMAQI
4th Aug 2026809 AMAQI
4th Aug 20267010 AMAQI
4th Aug 20267011 AMAQI
4th Aug 20267612 PMAQI
4th Aug 2026751 PMAQI
4th Aug 2026702 PMAQI
4th Aug 2026673 PMAQI
4th Aug 2026554 PMAQI
4th Aug 2026715 PMAQI
4th Aug 2026726 PMAQI
4th Aug 2026767 PMAQI
4th Aug 2026718 PMAQI
4th Aug 2026669 PMAQI
4th Aug 20266910 PMAQI
4th Aug 20267211 PMAQI
5th Aug 20266512 AMAQI
5th Aug 2026741 AMAQI
5th Aug 2026672 AMAQI
5th Aug 2026723 AMAQI
5th Aug 2026784 AMAQI

24°C14/36°C

5th Aug 2026785 AMAQI
5th Aug 2026746 AMAQI
5th Aug 2026767 AMAQI
5th Aug 2026738 AMAQI
5th Aug 2026739 AMAQI
5th Aug 20266910 AMAQI
5th Aug 20266911 AMAQI
5th Aug 20266712 PMAQI
5th Aug 2026671 PMAQI
5th Aug 2026782 PMAQI
5th Aug 2026843 PMAQI
5th Aug 2026734 PMAQI
5th Aug 2026885 PMAQI
5th Aug 2026796 PMAQI
5th Aug 2026727 PMAQI
5th Aug 2026718 PMAQI
5th Aug 2026719 PMAQI
5th Aug 20266810 PMAQI
5th Aug 20266611 PMAQI
6th Aug 20266612 AMAQI
6th Aug 2026761 AMAQI
6th Aug 2026672 AMAQI
6th Aug 2026693 AMAQI
6th Aug 2026764 AMAQI

24°C15/35°C

6th Aug 2026715 AMAQI
6th Aug 2026716 AMAQI
6th Aug 2026587 AMAQI
6th Aug 2026678 AMAQI
6th Aug 2026729 AMAQI
6th Aug 20267310 AMAQI
6th Aug 20267411 AMAQI
6th Aug 20267612 PMAQI
6th Aug 2026781 PMAQI
6th Aug 2026702 PMAQI
6th Aug 2026723 PMAQI
6th Aug 2026744 PMAQI
6th Aug 2026765 PMAQI
6th Aug 2026726 PMAQI
6th Aug 2026727 PMAQI
6th Aug 2026768 PMAQI
6th Aug 2026669 PMAQI
6th Aug 20266710 PMAQI
6th Aug 20266411 PMAQI
7th Aug 20266012 AMAQI
7th Aug 2026571 AMAQI
7th Aug 2026572 AMAQI
7th Aug 2026553 AMAQI
7th Aug 2026544 AMAQI

25°C15/36°C

7th Aug 2026525 AMAQI
7th Aug 2026526 AMAQI
7th Aug 2026527 AMAQI
7th Aug 2026538 AMAQI
7th Aug 2026529 AMAQI
7th Aug 20264210 AMAQI
7th Aug 20264811 AMAQI
7th Aug 20264912 PMAQI
7th Aug 2026511 PMAQI
7th Aug 2026522 PMAQI
7th Aug 2026533 PMAQI
7th Aug 2026544 PMAQI
7th Aug 2026535 PMAQI
7th Aug 2026526 PMAQI
7th Aug 2026487 PMAQI
7th Aug 2026508 PMAQI
7th Aug 2026509 PMAQI
7th Aug 20265310 PMAQI
7th Aug 20265311 PMAQI
8th Aug 20265112 AMAQI
8th Aug 2026511 AMAQI
8th Aug 2026502 AMAQI
8th Aug 2026503 AMAQI
8th Aug 2026524 AMAQI

24°C16/34°C

8th Aug 2026485 AMAQI
8th Aug 2026556 AMAQI
8th Aug 2026527 AMAQI
8th Aug 2026508 AMAQI
8th Aug 2026409 AMAQI
8th Aug 20262410 AMAQI
8th Aug 20262711 AMAQI
8th Aug 20263812 PMAQI
8th Aug 2026391 PMAQI
8th Aug 2026582 PMAQI
8th Aug 2026583 PMAQI
8th Aug 2026584 PMAQI
8th Aug 2026525 PMAQI
8th Aug 2026466 PMAQI
8th Aug 2026467 PMAQI
8th Aug 2026698 PMAQI
8th Aug 2026609 PMAQI
8th Aug 20265110 PMAQI
8th Aug 20268611 PMAQI
9th Aug 202612512 AMAQI
9th Aug 20261161 AMAQI
9th Aug 20261082 AMAQI
9th Aug 2026923 AMAQI
9th Aug 20261094 AMAQI

23°C16/34°C

9th Aug 2026885 AMAQI
9th Aug 2026726 AMAQI
9th Aug 2026687 AMAQI
9th Aug 2026748 AMAQI
9th Aug 2026509 AMAQI
9th Aug 20267810 AMAQI
9th Aug 20267911 AMAQI
9th Aug 20266012 PMAQI
9th Aug 2026881 PMAQI
9th Aug 20261102 PMAQI
9th Aug 20261053 PMAQI
9th Aug 2026624 PMAQI
9th Aug 2026215 PMAQI
9th Aug 2026706 PMAQI
9th Aug 20261127 PMAQI
9th Aug 20261068 PMAQI
9th Aug 2026569 PMAQI
9th Aug 20265710 PMAQI
9th Aug 20265611 PMAQI
10th Aug 20265412 AMAQI
10th Aug 2026621 AMAQI
10th Aug 2026582 AMAQI
10th Aug 2026463 AMAQI
10th Aug 2026784 AMAQI

21°C14/31°C

10th Aug 2026835 AMAQI
10th Aug 2026426 AMAQI
10th Aug 2026527 AMAQI
10th Aug 2026668 AMAQI
10th Aug 2026749 AMAQI
10th Aug 20267110 AMAQI
10th Aug 20265211 AMAQI
10th Aug 20265112 PMAQI
10th Aug 2026561 PMAQI
10th Aug 2026682 PMAQI
10th Aug 2026743 PMAQI
10th Aug 2026744 PMAQI
10th Aug 2026485 PMAQI
10th Aug 2026786 PMAQI
10th Aug 2026727 PMAQI
10th Aug 2026768 PMAQI
10th Aug 2026729 PMAQI
10th Aug 20264610 PMAQI
10th Aug 20265611 PMAQI
11th Aug 20265712 AMAQI
11th Aug 2026501 AMAQI
11th Aug 2026602 AMAQI
11th Aug 2026783 AMAQI
11th Aug 2026694 AMAQI

20°C14/29°C

11th Aug 2026855 AMAQI
11th Aug 2026736 AMAQI
11th Aug 2026747 AMAQI
11th Aug 2026708 AMAQI
11th Aug 2026709 AMAQI
11th Aug 20267210 AMAQI
11th Aug 20266811 AMAQI
11th Aug 20266012 PMAQI
11th Aug 2026681 PMAQI
11th Aug 2026662 PMAQI
11th Aug 2026583 PMAQI
11th Aug 2026584 PMAQI
11th Aug 2026235 PMAQI
11th Aug 2026346 PMAQI
11th Aug 2026387 PMAQI
11th Aug 2026428 PMAQI
11th Aug 2026429 PMAQI
11th Aug 20264010 PMAQI
11th Aug 20264811 PMAQI
12th Aug 20266612 AMAQI
12th Aug 2026721 AMAQI
12th Aug 2026672 AMAQI
12th Aug 2026653 AMAQI
12th Aug 2026584 AMAQI

20°C14/30°C

12th Aug 2026425 AMAQI
12th Aug 2026606 AMAQI
12th Aug 2026707 AMAQI
12th Aug 2026688 AMAQI
12th Aug 2026549 AMAQI
12th Aug 20268610 AMAQI
12th Aug 20266711 AMAQI
12th Aug 20266712 PMAQI
12th Aug 2026701 PMAQI
12th Aug 2026652 PMAQI
12th Aug 2026673 PMAQI
12th Aug 2026664 PMAQI
12th Aug 2026645 PMAQI
12th Aug 2026676 PMAQI
12th Aug 2026677 PMAQI
12th Aug 2026678 PMAQI
12th Aug 2026869 PMAQI
12th Aug 20264010 PMAQI
12th Aug 20265211 PMAQI
13th Aug 20266212 AMAQI
13th Aug 2026641 AMAQI
13th Aug 2026622 AMAQI
13th Aug 2026583 AMAQI
13th Aug 2026684 AMAQI

21°C17/28°C

13th Aug 2026525 AMAQI
13th Aug 2026626 AMAQI
13th Aug 2026717 AMAQI
13th Aug 2026528 AMAQI
13th Aug 2026859 AMAQI
13th Aug 20267410 AMAQI
13th Aug 20267011 AMAQI
13th Aug 20266512 PMAQI
13th Aug 2026671 PMAQI
13th Aug 2026962 PMAQI
13th Aug 2026763 PMAQI
13th Aug 2026484 PMAQI
13th Aug 2026465 PMAQI
13th Aug 2026546 PMAQI
13th Aug 2026597 PMAQI
13th Aug 2026628 PMAQI
13th Aug 2026579 PMAQI
13th Aug 20264810 PMAQI
13th Aug 20265011 PMAQI
14th Aug 20265012 AMAQI
14th Aug 2026481 AMAQI
14th Aug 2026462 AMAQI
14th Aug 2026443 AMAQI
14th Aug 2026424 AMAQI

20°C15/29°C

14th Aug 2026405 AMAQI
14th Aug 2026426 AMAQI
14th Aug 2026407 AMAQI
14th Aug 2026368 AMAQI
14th Aug 2026349 AMAQI
14th Aug 20263310 AMAQI
14th Aug 20265211 AMAQI
14th Aug 20265812 PMAQI
14th Aug 2026421 PMAQI
14th Aug 2026442 PMAQI
14th Aug 2026423 PMAQI
14th Aug 2026444 PMAQI
14th Aug 2026445 PMAQI
14th Aug 2026486 PMAQI
14th Aug 2026507 PMAQI
14th Aug 2026468 PMAQI
14th Aug 2026509 PMAQI
14th Aug 20264210 PMAQI
14th Aug 20266011 PMAQI
15th Aug 20266612 AMAQI
15th Aug 2026661 AMAQI
15th Aug 2026762 AMAQI
15th Aug 2026733 AMAQI
15th Aug 2026644 AMAQI

21°C16/29°C

15th Aug 2026705 AMAQI
15th Aug 2026656 AMAQI
15th Aug 2026657 AMAQI
15th Aug 2026458 AMAQI
15th Aug 2026789 AMAQI
15th Aug 20267110 AMAQI
15th Aug 20267611 AMAQI
15th Aug 20266812 PMAQI
15th Aug 2026981 PMAQI
15th Aug 2026862 PMAQI
15th Aug 2026893 PMAQI
15th Aug 2026644 PMAQI
15th Aug 2026625 PMAQI
15th Aug 2026406 PMAQI
15th Aug 2026407 PMAQI
15th Aug 2026428 PMAQI
15th Aug 2026449 PMAQI
15th Aug 20264010 PMAQI
15th Aug 20267511 PMAQI
16th Aug 20266412 AMAQI
16th Aug 2026581 AMAQI
16th Aug 2026662 AMAQI
16th Aug 2026713 AMAQI
16th Aug 2026564 AMAQI

21°C16/30°C

16th Aug 2026625 AMAQI
16th Aug 2026696 AMAQI
16th Aug 2026627 AMAQI
16th Aug 2026608 AMAQI
16th Aug 2026679 AMAQI
16th Aug 20266710 AMAQI
16th Aug 20264411 AMAQI
16th Aug 20266312 PMAQI
16th Aug 2026631 PMAQI
16th Aug 2026782 PMAQI
16th Aug 2026423 PMAQI
16th Aug 2026404 PMAQI
16th Aug 2026425 PMAQI
16th Aug 2026446 PMAQI
16th Aug 2026427 PMAQI
16th Aug 2026368 PMAQI
16th Aug 2026669 PMAQI
16th Aug 20266010 PMAQI
16th Aug 20264811 PMAQI
17th Aug 20266712 AMAQI
17th Aug 2026601 AMAQI
17th Aug 2026552 AMAQI
17th Aug 2026623 AMAQI
17th Aug 2026674 AMAQI

20°C13/27°C

17th Aug 2026665 AMAQI
17th Aug 2026606 AMAQI
17th Aug 2026587 AMAQI
17th Aug 2026558 AMAQI
17th Aug 2026639 AMAQI
17th Aug 20265110 AMAQI
17th Aug 20264811 AMAQI
17th Aug 20264812 PMAQI
17th Aug 2026521 PMAQI
17th Aug 2026512 PMAQI
17th Aug 2026533 PMAQI
17th Aug 2026444 PMAQI
17th Aug 2026425 PMAQI
17th Aug 2026466 PMAQI
17th Aug 2026447 PMAQI
17th Aug 2026468 PMAQI
17th Aug 2026469 PMAQI
17th Aug 20264810 PMAQI
17th Aug 20265011 PMAQI
18th Aug 20264612 AMAQI
18th Aug 2026481 AMAQI
18th Aug 2026442 AMAQI
18th Aug 2026443 AMAQI
18th Aug 2026464 AMAQI

21°C15/30°C

18th Aug 2026505 AMAQI
5 AM
18th Aug 2026486 AMAQI
18th Aug 2026517 AMAQI
18th Aug 2026548 AMAQI
18th Aug 2026559 AMAQI
18th Aug 20265710 AMAQI
18th Aug 20265811 AMAQI
18th Aug 20265712 PMAQI
12 PM
18th Aug 2026561 PMAQI
18th Aug 2026572 PMAQI
18th Aug 2026573 PMAQI
18th Aug 2026564 PMAQI
18th Aug 2026555 PMAQI
18th Aug 2026536 PMAQI
18th Aug 2026537 PMAQI
18th Aug 2026538 PMAQI
8 PM
12 AM
4 AM

21°C16/31°C

Day time
Avg. Highest Time
2 PM

64AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
5 PM - 6 PM

52AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 2 PM (Avg. 64), while the lowest AQI was between 5 PM to 6 PM (Avg. 52).
Night time
Avg. Highest Time
1 AM - 9 PM

57AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
10 PM - 11 PM

54AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 9 PM (Avg. 57), while the lowest AQI was between 10 PM to 11 PM (Avg. 54).

2026 Days Vs Air Quality

Roseway, Portland, Oregon, United States

2026

85%

192

15%

34

Total number of days with different AQI categories in last 230 days in 2026 (135 days remaining)

Good
192 Days
Moderate
34 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 85%

Health Risk Level:

Low

In 2026, 85% of 230 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

Roseway, 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
27AQI (US)
2nd January 2026
17AQI (US)
3rd January 2026
24AQI (US)
4th January 2026
12AQI (US)
5th January 2026
20AQI (US)
6th January 2026
28AQI (US)
7th January 2026
10AQI (US)
8th January 2026
12AQI (US)
9th January 2026
14AQI (US)
10th January 2026
46AQI (US)
11th January 2026
40AQI (US)
12th January 2026
40AQI (US)
13th January 2026
60AQI (US)
14th January 2026
61AQI (US)
15th January 2026
42AQI (US)
16th January 2026
18AQI (US)
17th January 2026
19AQI (US)
18th January 2026
26AQI (US)
19th January 2026
20AQI (US)
20th January 2026
29AQI (US)
21st January 2026
26AQI (US)
22nd January 2026
49AQI (US)
23rd January 2026
53AQI (US)
24th January 2026
49AQI (US)
25th January 2026
45AQI (US)
26th January 2026
46AQI (US)
27th January 2026
44AQI (US)
28th January 2026
48AQI (US)
29th January 2026
52AQI (US)
30th January 2026
48AQI (US)
31st January 2026
46AQI (US)
1st February 2026
48AQI (US)
2nd February 2026
49AQI (US)
3rd February 2026
49AQI (US)
4th February 2026
48AQI (US)
5th February 2026
47AQI (US)
6th February 2026
39AQI (US)
7th February 2026
40AQI (US)
8th February 2026
46AQI (US)
9th February 2026
46AQI (US)
10th February 2026
46AQI (US)
11th February 2026
40AQI (US)
12th February 2026
42AQI (US)
13th February 2026
48AQI (US)
14th February 2026
49AQI (US)
15th February 2026
39AQI (US)
16th February 2026
45AQI (US)
17th February 2026
46AQI (US)
18th February 2026
41AQI (US)
19th February 2026
41AQI (US)
20th February 2026
38AQI (US)
21st February 2026
35AQI (US)
22nd February 2026
37AQI (US)
23rd February 2026
40AQI (US)
24th February 2026
45AQI (US)
25th February 2026
41AQI (US)
26th February 2026
36AQI (US)
27th February 2026
35AQI (US)
28th February 2026
39AQI (US)
1st March 2026
40AQI (US)
2nd March 2026
55AQI (US)
3rd March 2026
46AQI (US)
4th March 2026
46AQI (US)
5th March 2026
42AQI (US)
6th March 2026
39AQI (US)
7th March 2026
40AQI (US)
8th March 2026
40AQI (US)
9th March 2026
41AQI (US)
10th March 2026
34AQI (US)
11th March 2026
43AQI (US)
12th March 2026
42AQI (US)
13th March 2026
40AQI (US)
14th March 2026
36AQI (US)
15th March 2026
36AQI (US)
16th March 2026
36AQI (US)
17th March 2026
33AQI (US)
18th March 2026
31AQI (US)
19th March 2026
31AQI (US)
20th March 2026
37AQI (US)
21st March 2026
37AQI (US)
22nd March 2026
36AQI (US)
23rd March 2026
40AQI (US)
24th March 2026
37AQI (US)
25th March 2026
31AQI (US)
26th March 2026
28AQI (US)
27th March 2026
29AQI (US)
28th March 2026
31AQI (US)
29th March 2026
29AQI (US)
30th March 2026
26AQI (US)
31st March 2026
25AQI (US)
1st April 2026
31AQI (US)
2nd April 2026
32AQI (US)
3rd April 2026
26AQI (US)
4th April 2026
31AQI (US)
5th April 2026
28AQI (US)
6th April 2026
26AQI (US)
7th April 2026
26AQI (US)
8th April 2026
30AQI (US)
9th April 2026
28AQI (US)
10th April 2026
31AQI (US)
11th April 2026
31AQI (US)
12th April 2026
26AQI (US)
13th April 2026
33AQI (US)
14th April 2026
33AQI (US)
15th April 2026
32AQI (US)
16th April 2026
28AQI (US)
17th April 2026
18th April 2026
29AQI (US)
19th April 2026
32AQI (US)
20th April 2026
26AQI (US)
21st April 2026
26AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
24th April 2026
26AQI (US)
25th April 2026
28AQI (US)
26th April 2026
32AQI (US)
27th April 2026
26AQI (US)
28th April 2026
23AQI (US)
29th April 2026
23AQI (US)
30th April 2026
26AQI (US)
1st May 2026
26AQI (US)
2nd May 2026
24AQI (US)
3rd May 2026
23AQI (US)
4th May 2026
29AQI (US)
5th May 2026
32AQI (US)
6th May 2026
30AQI (US)
7th May 2026
28AQI (US)
8th May 2026
27AQI (US)
9th May 2026
10th May 2026
33AQI (US)
11th May 2026
29AQI (US)
12th May 2026
25AQI (US)
13th May 2026
28AQI (US)
14th May 2026
25AQI (US)
15th May 2026
47AQI (US)
16th May 2026
52AQI (US)
17th May 2026
58AQI (US)
18th May 2026
57AQI (US)
19th May 2026
55AQI (US)
20th May 2026
49AQI (US)
21st May 2026
41AQI (US)
22nd May 2026
49AQI (US)
23rd May 2026
49AQI (US)
24th May 2026
46AQI (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
32AQI (US)
2nd June 2026
31AQI (US)
3rd June 2026
29AQI (US)
4th June 2026
25AQI (US)
5th June 2026
28AQI (US)
6th June 2026
25AQI (US)
7th June 2026
24AQI (US)
8th June 2026
26AQI (US)
9th June 2026
25AQI (US)
10th June 2026
27AQI (US)
11th June 2026
27AQI (US)
12th June 2026
27AQI (US)
13th June 2026
24AQI (US)
14th June 2026
23AQI (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
24AQI (US)
21st June 2026
22AQI (US)
22nd June 2026
25AQI (US)
23rd June 2026
24AQI (US)
24th June 2026
24AQI (US)
25th June 2026
25AQI (US)
26th June 2026
27AQI (US)
27th June 2026
29AQI (US)
28th June 2026
27AQI (US)
29th June 2026
25AQI (US)
30th June 2026
27AQI (US)
1st July 2026
26AQI (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
33AQI (US)
11th July 2026
30AQI (US)
12th July 2026
29AQI (US)
13th July 2026
30AQI (US)
14th July 2026
30AQI (US)
15th July 2026
28AQI (US)
16th July 2026
28AQI (US)
17th July 2026
58AQI (US)
18th July 2026
54AQI (US)
19th July 2026
47AQI (US)
20th July 2026
47AQI (US)
21st July 2026
55AQI (US)
22nd July 2026
56AQI (US)
23rd July 2026
47AQI (US)
24th July 2026
58AQI (US)
25th July 2026
61AQI (US)
26th July 2026
58AQI (US)
27th July 2026
57AQI (US)
28th July 2026
51AQI (US)
29th July 2026
45AQI (US)
30th July 2026
61AQI (US)
31st July 2026
51AQI (US)
1st August 2026
48AQI (US)
2nd August 2026
51AQI (US)
3rd August 2026
62AQI (US)
4th August 2026
71AQI (US)
5th August 2026
73AQI (US)
6th August 2026
71AQI (US)
7th August 2026
52AQI (US)
8th August 2026
50AQI (US)
9th August 2026
82AQI (US)
10th August 2026
63AQI (US)
11th August 2026
58AQI (US)
12th August 2026
65AQI (US)
13th August 2026
63AQI (US)
14th August 2026
45AQI (US)
15th August 2026
65AQI (US)
16th August 2026
57AQI (US)
17th August 2026
53AQI (US)
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

35AQI (US)

43AQI (US)

37AQI (US)

28AQI (US)

36AQI (US)

26AQI (US)

41AQI (US)

61AQI (US)

No. of days

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

202637AQI (US)

27
4
28
30
1
28
26
4
30
20
11
3
14
192
34

Highest AQI (US) recorded in

August

61AQI (US)

Lowest AQI (US) recorded in

June

26AQI (US)

202528AQI (US)

6
30
31
30
31
29
2
26
4
25
6
21
9
25
6
254
27

Highest AQI (US) recorded in

November

40AQI (US)

Lowest AQI (US) recorded in

March

17AQI (US)

Most & Least Polluted Years Over the Last 2 Years

Most Polluted Year Recorded
2026(Avg.)
37AQI (US)
Least Polluted Year Recorded
2025(Avg.)
28AQI (US)

Roseway's annual 2026 AQI (US) (37) shows an average percentage change of 32.1% (worsened AQI (US)) compared to previous years: 2025 (28).