Umatilla, Mountain Home Park, Washington, 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
Umatilla, Mountain Home Park, Washington, United States
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
7th Aug 2026
73AQILowest AQI recorded on
16th Aug 2025
14AQISame Day Analysis (17th August):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 54 of Moderate air quality on the same day.
Day & Night AQI Trend: 16th Aug - 17th Aug 2026
Umatilla, Mountain Home Park, Washington, United States
AQI
Day
Night
.
5 AM16th Aug 2026
8 PM
4 AM17th Aug 2026
Day time
Avg. Highest Time
6AM16th Aug
90AQI
Avg. Lowest Time
12PM16th Aug
62AQI
Night time
Avg. Highest Time
10PM16th Aug
64AQI
Avg. Lowest Time
4AM17th Aug
55AQI
In the last 24 hours,
Umatilla's AQI reached its highest point of 90 at 6 AM during the Day, while the lowest point, 55, was recorded at 4 AM during the Night between 16th Aug and 17th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Umatilla, Mountain Home Park, Washington, United States
JulAug
19th - 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 - 15th15th - 16th16th - 17th17th
Day
Night
19th Jul 2026605 AMAQI
19th Jul 2026606 AMAQI
19th Jul 2026607 AMAQI
19th Jul 2026628 AMAQI
19th Jul 2026649 AMAQI
19th Jul 20267310 AMAQI
19th Jul 20266911 AMAQI
19th Jul 20264412 PMAQI
19th Jul 2026521 PMAQI
19th Jul 2026602 PMAQI
19th Jul 2026583 PMAQI
19th Jul 2026524 PMAQI
19th Jul 2026465 PMAQI
19th Jul 2026696 PMAQI
19th Jul 2026747 PMAQI
19th Jul 2026688 PMAQI
19th Jul 2026659 PMAQI
19th Jul 20266910 PMAQI
19th Jul 20266611 PMAQI
20th Jul 20266912 AMAQI
20th Jul 2026761 AMAQI
20th Jul 2026702 AMAQI
20th Jul 2026733 AMAQI
20th Jul 2026744 AMAQI
24°C14/32°C
20th Jul 2026745 AMAQI
20th Jul 2026856 AMAQI
20th Jul 2026757 AMAQI
20th Jul 2026798 AMAQI
20th Jul 2026809 AMAQI
20th Jul 20268210 AMAQI
20th Jul 20266911 AMAQI
20th Jul 20265312 PMAQI
20th Jul 2026581 PMAQI
20th Jul 2026592 PMAQI
20th Jul 2026583 PMAQI
20th Jul 2026554 PMAQI
20th Jul 2026575 PMAQI
20th Jul 2026636 PMAQI
20th Jul 2026717 PMAQI
20th Jul 2026659 PMAQI
20th Jul 20266710 PMAQI
20th Jul 20266411 PMAQI
21st Jul 20266412 AMAQI
21st Jul 2026641 AMAQI
21st Jul 2026722 AMAQI
21st Jul 2026693 AMAQI
21st Jul 2026664 AMAQI
25°C19/31°C
21st Jul 2026705 AMAQI
21st Jul 2026746 AMAQI
21st Jul 2026707 AMAQI
21st Jul 2026768 AMAQI
21st Jul 2026749 AMAQI
21st Jul 20268210 AMAQI
21st Jul 20266811 AMAQI
21st Jul 20267412 PMAQI
21st Jul 2026741 PMAQI
21st Jul 2026782 PMAQI
21st Jul 2026723 PMAQI
21st Jul 2026784 PMAQI
21st Jul 2026725 PMAQI
21st Jul 2026686 PMAQI
21st Jul 2026707 PMAQI
21st Jul 2026838 PMAQI
21st Jul 2026669 PMAQI
21st Jul 20266710 PMAQI
21st Jul 20266211 PMAQI
22nd Jul 20266012 AMAQI
22nd Jul 2026711 AMAQI
22nd Jul 2026762 AMAQI
22nd Jul 2026743 AMAQI
22nd Jul 2026834 AMAQI
26°C16/35°C
22nd Jul 2026785 AMAQI
22nd Jul 2026736 AMAQI
22nd Jul 2026857 AMAQI
22nd Jul 2026828 AMAQI
22nd Jul 2026729 AMAQI
22nd Jul 20267810 AMAQI
22nd Jul 20267211 AMAQI
22nd Jul 20267612 PMAQI
22nd Jul 2026741 PMAQI
22nd Jul 2026712 PMAQI
22nd Jul 2026683 PMAQI
22nd Jul 2026814 PMAQI
22nd Jul 2026785 PMAQI
22nd Jul 2026826 PMAQI
22nd Jul 2026677 PMAQI
22nd Jul 2026648 PMAQI
22nd Jul 2026649 PMAQI
22nd Jul 20266910 PMAQI
22nd Jul 20266611 PMAQI
23rd Jul 20266712 AMAQI
23rd Jul 2026681 AMAQI
23rd Jul 2026692 AMAQI
23rd Jul 2026693 AMAQI
23rd Jul 2026664 AMAQI
30°C21/38°C
23rd Jul 2026765 AMAQI
23rd Jul 2026726 AMAQI
23rd Jul 2026787 AMAQI
23rd Jul 2026768 AMAQI
23rd Jul 2026789 AMAQI
23rd Jul 20267010 AMAQI
23rd Jul 20266811 AMAQI
23rd Jul 20266912 PMAQI
23rd Jul 2026711 PMAQI
23rd Jul 2026742 PMAQI
23rd Jul 2026583 PMAQI
23rd Jul 2026764 PMAQI
23rd Jul 2026695 PMAQI
23rd Jul 2026696 PMAQI
23rd Jul 2026687 PMAQI
23rd Jul 2026708 PMAQI
23rd Jul 2026589 PMAQI
23rd Jul 20267010 PMAQI
23rd Jul 20266211 PMAQI
24th Jul 20266412 AMAQI
24th Jul 2026741 AMAQI
24th Jul 2026742 AMAQI
24th Jul 2026723 AMAQI
24th Jul 2026764 AMAQI
28°C21/35°C
24th Jul 2026765 AMAQI
24th Jul 2026726 AMAQI
24th Jul 2026727 AMAQI
24th Jul 2026808 AMAQI
24th Jul 2026809 AMAQI
24th Jul 20267410 AMAQI
24th Jul 20266711 AMAQI
24th Jul 20266812 PMAQI
24th Jul 2026721 PMAQI
24th Jul 2026722 PMAQI
24th Jul 2026623 PMAQI
24th Jul 2026604 PMAQI
24th Jul 2026585 PMAQI
24th Jul 2026696 PMAQI
24th Jul 2026687 PMAQI
24th Jul 2026628 PMAQI
24th Jul 2026599 PMAQI
24th Jul 20265810 PMAQI
24th Jul 20265711 PMAQI
25th Jul 20265412 AMAQI
25th Jul 2026621 AMAQI
25th Jul 2026652 AMAQI
25th Jul 2026593 AMAQI
25th Jul 2026554 AMAQI
28°C19/35°C
25th Jul 2026465 AMAQI
25th Jul 2026566 AMAQI
25th Jul 2026567 AMAQI
25th Jul 2026508 AMAQI
25th Jul 2026539 AMAQI
25th Jul 20266910 AMAQI
25th Jul 20266911 AMAQI
25th Jul 20266712 PMAQI
25th Jul 2026441 PMAQI
25th Jul 2026572 PMAQI
25th Jul 2026603 PMAQI
25th Jul 2026584 PMAQI
25th Jul 2026655 PMAQI
25th Jul 2026646 PMAQI
25th Jul 2026697 PMAQI
25th Jul 2026668 PMAQI
25th Jul 2026609 PMAQI
25th Jul 20265510 PMAQI
25th Jul 20265711 PMAQI
26th Jul 20265312 AMAQI
26th Jul 2026571 AMAQI
26th Jul 2026602 AMAQI
26th Jul 2026603 AMAQI
26th Jul 2026684 AMAQI
25°C18/32°C
26th Jul 2026675 AMAQI
26th Jul 2026696 AMAQI
26th Jul 2026707 AMAQI
26th Jul 2026688 AMAQI
26th Jul 2026669 AMAQI
26th Jul 20266010 AMAQI
26th Jul 20266211 AMAQI
26th Jul 20265812 PMAQI
26th Jul 2026621 PMAQI
26th Jul 2026632 PMAQI
26th Jul 2026553 PMAQI
26th Jul 2026514 PMAQI
26th Jul 2026575 PMAQI
26th Jul 2026606 PMAQI
26th Jul 2026627 PMAQI
26th Jul 2026628 PMAQI
26th Jul 2026609 PMAQI
26th Jul 20266410 PMAQI
26th Jul 20266011 PMAQI
27th Jul 20266312 AMAQI
27th Jul 2026661 AMAQI
27th Jul 2026762 AMAQI
27th Jul 2026693 AMAQI
27th Jul 2026644 AMAQI
22°C15/30°C
27th Jul 2026605 AMAQI
27th Jul 2026566 AMAQI
27th Jul 2026627 AMAQI
27th Jul 2026688 AMAQI
27th Jul 2026709 AMAQI
27th Jul 20267410 AMAQI
27th Jul 20266611 AMAQI
27th Jul 20265512 PMAQI
27th Jul 2026641 PMAQI
27th Jul 2026642 PMAQI
27th Jul 2026593 PMAQI
27th Jul 2026624 PMAQI
27th Jul 2026665 PMAQI
27th Jul 2026666 PMAQI
27th Jul 2026687 PMAQI
27th Jul 2026698 PMAQI
27th Jul 2026599 PMAQI
27th Jul 20266510 PMAQI
27th Jul 20266211 PMAQI
28th Jul 20265912 AMAQI
28th Jul 2026591 AMAQI
28th Jul 2026622 AMAQI
28th Jul 2026653 AMAQI
28th Jul 2026674 AMAQI
23°C15/31°C
28th Jul 2026765 AMAQI
28th Jul 2026786 AMAQI
28th Jul 2026757 AMAQI
28th Jul 2026718 AMAQI
28th Jul 2026769 AMAQI
28th Jul 20266510 AMAQI
28th Jul 20266211 AMAQI
28th Jul 20266512 PMAQI
28th Jul 2026691 PMAQI
28th Jul 2026702 PMAQI
28th Jul 2026643 PMAQI
28th Jul 2026714 PMAQI
28th Jul 2026645 PMAQI
28th Jul 2026646 PMAQI
28th Jul 2026687 PMAQI
28th Jul 2026698 PMAQI
28th Jul 2026629 PMAQI
28th Jul 20266010 PMAQI
28th Jul 20266211 PMAQI
29th Jul 20266512 AMAQI
29th Jul 2026641 AMAQI
29th Jul 2026642 AMAQI
29th Jul 2026723 AMAQI
29th Jul 2026764 AMAQI
23°C16/30°C
29th Jul 2026685 AMAQI
29th Jul 2026606 AMAQI
29th Jul 2026677 AMAQI
29th Jul 2026628 AMAQI
29th Jul 2026749 AMAQI
29th Jul 20267210 AMAQI
29th Jul 20266611 AMAQI
29th Jul 20267212 PMAQI
29th Jul 2026711 PMAQI
29th Jul 2026692 PMAQI
29th Jul 2026723 PMAQI
29th Jul 2026654 PMAQI
29th Jul 2026705 PMAQI
29th Jul 2026646 PMAQI
29th Jul 2026717 PMAQI
29th Jul 2026688 PMAQI
29th Jul 2026649 PMAQI
29th Jul 20266510 PMAQI
29th Jul 20266711 PMAQI
30th Jul 20266012 AMAQI
30th Jul 2026681 AMAQI
30th Jul 2026692 AMAQI
30th Jul 2026763 AMAQI
30th Jul 2026684 AMAQI
22°C14/29°C
30th Jul 2026695 AMAQI
30th Jul 2026686 AMAQI
30th Jul 2026717 AMAQI
30th Jul 2026728 AMAQI
30th Jul 2026679 AMAQI
30th Jul 20267210 AMAQI
30th Jul 20266811 AMAQI
30th Jul 20266612 PMAQI
30th Jul 2026731 PMAQI
30th Jul 2026712 PMAQI
30th Jul 2026633 PMAQI
30th Jul 2026664 PMAQI
30th Jul 2026645 PMAQI
30th Jul 2026706 PMAQI
30th Jul 2026627 PMAQI
30th Jul 2026648 PMAQI
30th Jul 2026579 PMAQI
30th Jul 20266010 PMAQI
30th Jul 20266411 PMAQI
31st Jul 20266812 AMAQI
31st Jul 2026641 AMAQI
31st Jul 2026702 AMAQI
31st Jul 2026703 AMAQI
31st Jul 2026684 AMAQI
23°C15/31°C
31st Jul 2026625 AMAQI
31st Jul 2026626 AMAQI
31st Jul 2026657 AMAQI
31st Jul 2026658 AMAQI
31st Jul 2026679 AMAQI
31st Jul 20266710 AMAQI
31st Jul 20266911 AMAQI
31st Jul 20268112 PMAQI
31st Jul 2026651 PMAQI
31st Jul 2026542 PMAQI
31st Jul 2026603 PMAQI
31st Jul 2026544 PMAQI
31st Jul 2026605 PMAQI
31st Jul 2026586 PMAQI
31st Jul 2026627 PMAQI
31st Jul 2026598 PMAQI
31st Jul 2026529 PMAQI
31st Jul 20266010 PMAQI
31st Jul 20265711 PMAQI
1st Aug 20265412 AMAQI
1st Aug 2026571 AMAQI
1st Aug 2026562 AMAQI
1st Aug 2026573 AMAQI
1st Aug 2026574 AMAQI
25°C16/35°C
1st Aug 2026565 AMAQI
1st Aug 2026566 AMAQI
1st Aug 2026577 AMAQI
1st Aug 2026518 AMAQI
1st Aug 2026529 AMAQI
1st Aug 20266610 AMAQI
1st Aug 20267111 AMAQI
1st Aug 20266212 PMAQI
1st Aug 2026661 PMAQI
1st Aug 2026542 PMAQI
1st Aug 2026543 PMAQI
1st Aug 2026584 PMAQI
1st Aug 2026585 PMAQI
1st Aug 2026706 PMAQI
1st Aug 2026597 PMAQI
1st Aug 2026688 PMAQI
1st Aug 2026589 PMAQI
1st Aug 20266210 PMAQI
1st Aug 20265611 PMAQI
2nd Aug 20264212 AMAQI
2nd Aug 2026551 AMAQI
2nd Aug 2026582 AMAQI
2nd Aug 2026643 AMAQI
2nd Aug 2026604 AMAQI
24°C18/30°C
2nd Aug 2026705 AMAQI
2nd Aug 2026666 AMAQI
2nd Aug 2026677 AMAQI
2nd Aug 2026688 AMAQI
2nd Aug 2026659 AMAQI
2nd Aug 20266210 AMAQI
2nd Aug 20266411 AMAQI
2nd Aug 20266012 PMAQI
2nd Aug 2026641 PMAQI
2nd Aug 2026552 PMAQI
2nd Aug 2026573 PMAQI
2nd Aug 2026644 PMAQI
2nd Aug 2026625 PMAQI
2nd Aug 2026626 PMAQI
2nd Aug 2026677 PMAQI
2nd Aug 2026658 PMAQI
2nd Aug 2026609 PMAQI
2nd Aug 20266610 PMAQI
2nd Aug 20266511 PMAQI
3rd Aug 20266512 AMAQI
3rd Aug 2026641 AMAQI
3rd Aug 2026702 AMAQI
3rd Aug 2026713 AMAQI
3rd Aug 2026724 AMAQI
18°C11/25°C
3rd Aug 2026695 AMAQI
3rd Aug 2026736 AMAQI
3rd Aug 2026717 AMAQI
3rd Aug 2026698 AMAQI
3rd Aug 2026729 AMAQI
3rd Aug 20265010 AMAQI
3rd Aug 20266711 AMAQI
3rd Aug 20267112 PMAQI
3rd Aug 2026651 PMAQI
3rd Aug 2026602 PMAQI
3rd Aug 2026623 PMAQI
3rd Aug 2026684 PMAQI
3rd Aug 2026645 PMAQI
3rd Aug 2026696 PMAQI
3rd Aug 2026667 PMAQI
3rd Aug 2026688 PMAQI
3rd Aug 2026669 PMAQI
3rd Aug 20266210 PMAQI
3rd Aug 20266811 PMAQI
4th Aug 20266812 AMAQI
4th Aug 2026691 AMAQI
4th Aug 2026692 AMAQI
4th Aug 2026723 AMAQI
4th Aug 2026664 AMAQI
18°C10/26°C
4th Aug 2026665 AMAQI
4th Aug 2026716 AMAQI
4th Aug 2026747 AMAQI
4th Aug 2026748 AMAQI
4th Aug 2026809 AMAQI
4th Aug 20266610 AMAQI
4th Aug 20267011 AMAQI
4th Aug 20267312 PMAQI
4th Aug 2026741 PMAQI
4th Aug 2026672 PMAQI
4th Aug 2026693 PMAQI
4th Aug 2026604 PMAQI
4th Aug 2026685 PMAQI
4th Aug 2026746 PMAQI
4th Aug 2026747 PMAQI
4th Aug 2026708 PMAQI
4th Aug 2026629 PMAQI
4th Aug 20267010 PMAQI
4th Aug 20267411 PMAQI
5th Aug 20266512 AMAQI
5th Aug 2026651 AMAQI
5th Aug 2026672 AMAQI
5th Aug 2026713 AMAQI
5th Aug 2026764 AMAQI
21°C13/30°C
5th Aug 2026785 AMAQI
5th Aug 2026726 AMAQI
5th Aug 2026717 AMAQI
5th Aug 2026718 AMAQI
5th Aug 2026749 AMAQI
5th Aug 20267010 AMAQI
5th Aug 20267211 AMAQI
5th Aug 20267312 PMAQI
5th Aug 2026691 PMAQI
5th Aug 2026742 PMAQI
5th Aug 2026843 PMAQI
5th Aug 2026764 PMAQI
5th Aug 2026845 PMAQI
5th Aug 2026806 PMAQI
5th Aug 2026707 PMAQI
5th Aug 2026708 PMAQI
5th Aug 2026669 PMAQI
5th Aug 20266710 PMAQI
5th Aug 20266911 PMAQI
6th Aug 20266212 AMAQI
6th Aug 2026761 AMAQI
6th Aug 2026682 AMAQI
6th Aug 2026703 AMAQI
6th Aug 2026704 AMAQI
24°C14/34°C
6th Aug 2026765 AMAQI
6th Aug 2026726 AMAQI
6th Aug 2026707 AMAQI
6th Aug 2026748 AMAQI
6th Aug 2026789 AMAQI
6th Aug 20267410 AMAQI
6th Aug 20267411 AMAQI
6th Aug 20267012 PMAQI
6th Aug 2026781 PMAQI
6th Aug 2026732 PMAQI
6th Aug 2026663 PMAQI
6th Aug 2026744 PMAQI
6th Aug 2026745 PMAQI
6th Aug 2026666 PMAQI
6th Aug 2026697 PMAQI
6th Aug 2026718 PMAQI
6th Aug 2026649 PMAQI
6th Aug 20267010 PMAQI
6th Aug 20266611 PMAQI
7th Aug 20267412 AMAQI
7th Aug 2026781 AMAQI
7th Aug 2026702 AMAQI
7th Aug 2026743 AMAQI
7th Aug 2026724 AMAQI
26°C17/35°C
7th Aug 2026785 AMAQI
7th Aug 2026766 AMAQI
7th Aug 2026827 AMAQI
7th Aug 2026748 AMAQI
7th Aug 2026809 AMAQI
7th Aug 20267810 AMAQI
7th Aug 20267411 AMAQI
7th Aug 20267412 PMAQI
7th Aug 2026701 PMAQI
7th Aug 2026702 PMAQI
7th Aug 2026703 PMAQI
7th Aug 2026664 PMAQI
7th Aug 2026765 PMAQI
7th Aug 2026716 PMAQI
7th Aug 2026697 PMAQI
7th Aug 2026698 PMAQI
7th Aug 2026629 PMAQI
7th Aug 20266510 PMAQI
7th Aug 20267011 PMAQI
8th Aug 20267612 AMAQI
8th Aug 2026691 AMAQI
8th Aug 2026742 AMAQI
8th Aug 2026723 AMAQI
8th Aug 2026714 AMAQI
27°C20/35°C
8th Aug 2026745 AMAQI
8th Aug 2026726 AMAQI
8th Aug 2026787 AMAQI
8th Aug 2026748 AMAQI
8th Aug 2026729 AMAQI
8th Aug 20266910 AMAQI
8th Aug 20267211 AMAQI
8th Aug 20266912 PMAQI
8th Aug 2026651 PMAQI
8th Aug 2026582 PMAQI
8th Aug 2026583 PMAQI
8th Aug 2026544 PMAQI
8th Aug 2026555 PMAQI
8th Aug 2026466 PMAQI
8th Aug 2026507 PMAQI
8th Aug 2026518 PMAQI
8th Aug 2026589 PMAQI
8th Aug 20266410 PMAQI
8th Aug 20265311 PMAQI
9th Aug 20265212 AMAQI
9th Aug 2026601 AMAQI
9th Aug 2026622 AMAQI
9th Aug 2026603 AMAQI
9th Aug 2026724 AMAQI
26°C18/33°C
9th Aug 2026585 AMAQI
9th Aug 2026576 AMAQI
9th Aug 2026527 AMAQI
9th Aug 2026578 AMAQI
9th Aug 2026579 AMAQI
9th Aug 20265110 AMAQI
9th Aug 20265011 AMAQI
9th Aug 20266512 PMAQI
9th Aug 2026681 PMAQI
9th Aug 2026702 PMAQI
9th Aug 2026463 PMAQI
9th Aug 2026484 PMAQI
9th Aug 2026685 PMAQI
9th Aug 2026686 PMAQI
9th Aug 2026607 PMAQI
9th Aug 2026628 PMAQI
9th Aug 2026629 PMAQI
9th Aug 20265810 PMAQI
9th Aug 20266211 PMAQI
10th Aug 20266912 AMAQI
10th Aug 2026711 AMAQI
10th Aug 2026722 AMAQI
10th Aug 2026683 AMAQI
10th Aug 2026644 AMAQI
24°C16/31°C
10th Aug 2026675 AMAQI
10th Aug 2026686 AMAQI
10th Aug 2026667 AMAQI
10th Aug 2026648 AMAQI
10th Aug 2026489 AMAQI
10th Aug 20265210 AMAQI
10th Aug 20265211 AMAQI
10th Aug 20264612 PMAQI
10th Aug 2026491 PMAQI
10th Aug 2026512 PMAQI
10th Aug 2026533 PMAQI
10th Aug 2026584 PMAQI
10th Aug 2026575 PMAQI
10th Aug 2026536 PMAQI
10th Aug 2026497 PMAQI
10th Aug 2026558 PMAQI
10th Aug 2026659 PMAQI
10th Aug 20266010 PMAQI
10th Aug 20266311 PMAQI
11th Aug 20266012 AMAQI
11th Aug 2026671 AMAQI
11th Aug 2026762 AMAQI
11th Aug 2026753 AMAQI
11th Aug 2026664 AMAQI
23°C15/31°C
11th Aug 2026715 AMAQI
11th Aug 2026626 AMAQI
11th Aug 2026527 AMAQI
11th Aug 2026538 AMAQI
11th Aug 2026529 AMAQI
11th Aug 20266410 AMAQI
11th Aug 20265911 AMAQI
11th Aug 20265912 PMAQI
11th Aug 2026591 PMAQI
11th Aug 2026642 PMAQI
11th Aug 2026623 PMAQI
11th Aug 2026584 PMAQI
11th Aug 2026525 PMAQI
11th Aug 2026656 PMAQI
11th Aug 2026597 PMAQI
11th Aug 2026788 PMAQI
11th Aug 2026649 PMAQI
11th Aug 20266410 PMAQI
11th Aug 20265911 PMAQI
12th Aug 20266412 AMAQI
12th Aug 2026661 AMAQI
12th Aug 2026552 AMAQI
12th Aug 2026553 AMAQI
12th Aug 2026564 AMAQI
23°C15/31°C
12th Aug 2026545 AMAQI
12th Aug 2026546 AMAQI
12th Aug 2026557 AMAQI
12th Aug 2026578 AMAQI
12th Aug 2026559 AMAQI
12th Aug 20266410 AMAQI
12th Aug 20266511 AMAQI
12th Aug 20266412 PMAQI
12th Aug 2026501 PMAQI
12th Aug 2026532 PMAQI
12th Aug 2026593 PMAQI
12th Aug 2026464 PMAQI
12th Aug 2026555 PMAQI
12th Aug 2026506 PMAQI
12th Aug 2026567 PMAQI
12th Aug 2026568 PMAQI
12th Aug 2026549 PMAQI
12th Aug 20265910 PMAQI
12th Aug 20266311 PMAQI
13th Aug 20266012 AMAQI
13th Aug 2026701 AMAQI
13th Aug 2026642 AMAQI
13th Aug 2026723 AMAQI
13th Aug 2026784 AMAQI
23°C16/29°C
13th Aug 2026825 AMAQI
13th Aug 2026716 AMAQI
13th Aug 2026807 AMAQI
13th Aug 2026678 AMAQI
13th Aug 2026649 AMAQI
13th Aug 20266510 AMAQI
13th Aug 20266711 AMAQI
13th Aug 20266312 PMAQI
13th Aug 2026711 PMAQI
13th Aug 2026702 PMAQI
13th Aug 2026733 PMAQI
13th Aug 2026664 PMAQI
13th Aug 2026765 PMAQI
13th Aug 2026786 PMAQI
13th Aug 2026757 PMAQI
13th Aug 2026698 PMAQI
13th Aug 2026699 PMAQI
13th Aug 20266410 PMAQI
13th Aug 20266711 PMAQI
14th Aug 20266612 AMAQI
14th Aug 2026651 AMAQI
14th Aug 2026652 AMAQI
14th Aug 2026623 AMAQI
14th Aug 2026604 AMAQI
22°C14/29°C
14th Aug 2026605 AMAQI
14th Aug 2026656 AMAQI
14th Aug 2026627 AMAQI
14th Aug 2026568 AMAQI
14th Aug 2026539 AMAQI
14th Aug 20265810 AMAQI
14th Aug 20266611 AMAQI
14th Aug 20266612 PMAQI
14th Aug 2026561 PMAQI
14th Aug 2026542 PMAQI
14th Aug 2026503 PMAQI
14th Aug 2026494 PMAQI
14th Aug 2026525 PMAQI
14th Aug 2026566 PMAQI
14th Aug 2026587 PMAQI
14th Aug 2026648 PMAQI
14th Aug 2026659 PMAQI
14th Aug 20266910 PMAQI
14th Aug 20266811 PMAQI
15th Aug 20266612 AMAQI
15th Aug 2026681 AMAQI
15th Aug 2026662 AMAQI
15th Aug 2026693 AMAQI
15th Aug 2026684 AMAQI
23°C16/30°C
15th Aug 2026705 AMAQI
15th Aug 2026646 AMAQI
15th Aug 2026627 AMAQI
15th Aug 2026628 AMAQI
15th Aug 2026639 AMAQI
15th Aug 20266410 AMAQI
15th Aug 20266611 AMAQI
15th Aug 20266812 PMAQI
15th Aug 2026681 PMAQI
15th Aug 2026712 PMAQI
15th Aug 2026713 PMAQI
15th Aug 2026574 PMAQI
15th Aug 2026575 PMAQI
15th Aug 2026686 PMAQI
15th Aug 2026707 PMAQI
15th Aug 2026648 PMAQI
15th Aug 2026589 PMAQI
15th Aug 20264910 PMAQI
15th Aug 20264411 PMAQI
16th Aug 20264812 AMAQI
16th Aug 2026481 AMAQI
16th Aug 2026522 AMAQI
16th Aug 2026673 AMAQI
16th Aug 2026714 AMAQI
22°C17/29°C
16th Aug 2026715 AMAQI
16th Aug 2026906 AMAQI
16th Aug 2026747 AMAQI
16th Aug 2026798 AMAQI
16th Aug 2026649 AMAQI
16th Aug 20266510 AMAQI
16th Aug 20266911 AMAQI
16th Aug 20266212 PMAQI
16th Aug 2026671 PMAQI
16th Aug 2026662 PMAQI
16th Aug 2026643 PMAQI
16th Aug 2026664 PMAQI
16th Aug 2026655 PMAQI
16th Aug 2026676 PMAQI
16th Aug 2026647 PMAQI
16th Aug 2026628 PMAQI
16th Aug 2026629 PMAQI
16th Aug 20266410 PMAQI
16th Aug 20266211 PMAQI
17th Aug 20266012 AMAQI
17th Aug 2026641 AMAQI
17th Aug 2026572 AMAQI
17th Aug 2026573 AMAQI
17th Aug 2026554 AMAQI
22°C4/31°C
17th Aug 2026545 AMAQI
5 AM17th Aug 2026576 AMAQI
17th Aug 2026567 AMAQI
17th Aug 2026568 AMAQI
17th Aug 2026549 AMAQI
17th Aug 20265610 AMAQI
17th Aug 20265511 AMAQI
17th Aug 20265312 PMAQI
12 PM17th Aug 2026481 PMAQI
17th Aug 2026502 PMAQI
17th Aug 2026483 PMAQI
17th Aug 2026484 PMAQI
17th Aug 2026485 PMAQI
17th Aug 2026486 PMAQI
17th Aug 2026507 PMAQI
17th Aug 2026528 PMAQI
8 PM17th Aug 2026529 PMAQI
17th Aug 20265410 PMAQI
17th Aug 20265211 PMAQI
12 AM
4 AM
25°C17/32°C
Day time
Avg. Highest Time
5 AM - 2 PM
67AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
3 PM - 5 PM
62AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 2 PM (Avg. 67), while the lowest AQI was between 3 PM to 5 PM (Avg. 62).
Night time
Avg. Highest Time
1 AM - 4 AM
67AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
9 PM
61AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 67), while the lowest AQI was between 9 PM to 9 PM (Avg. 61).
2026 Days Vs Air Quality
Umatilla, Mountain Home Park, Washington, United States
2026
85%
192
15%
34
Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)
Good
192 DaysModerate
34 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2026, 85% of 229 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
Umatilla, Mountain Home Park, Washington, 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
45AQI (US)
45AQI (US)
2nd January 2026
28AQI (US)
28AQI (US)
3rd January 2026
23AQI (US)
23AQI (US)
4th January 2026
17AQI (US)
17AQI (US)
5th January 2026
22AQI (US)
22AQI (US)
6th January 2026
12AQI (US)
12AQI (US)
7th January 2026
11AQI (US)
11AQI (US)
8th January 2026
11AQI (US)
11AQI (US)
9th January 2026
14AQI (US)
14AQI (US)
10th January 2026
20AQI (US)
20AQI (US)
11th January 2026
36AQI (US)
36AQI (US)
12th January 2026
26AQI (US)
26AQI (US)
13th January 2026
18AQI (US)
18AQI (US)
14th January 2026
27AQI (US)
27AQI (US)
15th January 2026
33AQI (US)
33AQI (US)
16th January 2026
19AQI (US)
19AQI (US)
17th January 2026
14AQI (US)
14AQI (US)
18th January 2026
18AQI (US)
18AQI (US)
19th January 2026
19AQI (US)
19AQI (US)
20th January 2026
23AQI (US)
23AQI (US)
21st January 2026
29AQI (US)
29AQI (US)
22nd January 2026
48AQI (US)
48AQI (US)
23rd January 2026
53AQI (US)
53AQI (US)
24th January 2026
48AQI (US)
48AQI (US)
25th January 2026
44AQI (US)
44AQI (US)
26th January 2026
45AQI (US)
45AQI (US)
27th January 2026
42AQI (US)
42AQI (US)
28th January 2026
45AQI (US)
45AQI (US)
29th January 2026
50AQI (US)
50AQI (US)
30th January 2026
46AQI (US)
46AQI (US)
31st January 2026
43AQI (US)
43AQI (US)
1st February 2026
48AQI (US)
48AQI (US)
2nd February 2026
46AQI (US)
46AQI (US)
3rd February 2026
47AQI (US)
47AQI (US)
4th February 2026
46AQI (US)
46AQI (US)
5th February 2026
45AQI (US)
45AQI (US)
6th February 2026
39AQI (US)
39AQI (US)
7th February 2026
40AQI (US)
40AQI (US)
8th February 2026
45AQI (US)
45AQI (US)
9th February 2026
44AQI (US)
44AQI (US)
10th February 2026
45AQI (US)
45AQI (US)
11th February 2026
45AQI (US)
45AQI (US)
12th February 2026
44AQI (US)
44AQI (US)
13th February 2026
51AQI (US)
51AQI (US)
14th February 2026
48AQI (US)
48AQI (US)
15th February 2026
38AQI (US)
38AQI (US)
16th February 2026
43AQI (US)
43AQI (US)
17th February 2026
45AQI (US)
45AQI (US)
18th February 2026
42AQI (US)
42AQI (US)
19th February 2026
43AQI (US)
43AQI (US)
20th February 2026
43AQI (US)
43AQI (US)
21st February 2026
37AQI (US)
37AQI (US)
22nd February 2026
37AQI (US)
37AQI (US)
23rd February 2026
39AQI (US)
39AQI (US)
24th February 2026
41AQI (US)
41AQI (US)
25th February 2026
40AQI (US)
40AQI (US)
26th February 2026
33AQI (US)
33AQI (US)
27th February 2026
33AQI (US)
33AQI (US)
28th February 2026
37AQI (US)
37AQI (US)
1st March 2026
41AQI (US)
41AQI (US)
2nd March 2026
50AQI (US)
50AQI (US)
3rd March 2026
44AQI (US)
44AQI (US)
4th March 2026
43AQI (US)
43AQI (US)
5th March 2026
41AQI (US)
41AQI (US)
6th March 2026
36AQI (US)
36AQI (US)
7th March 2026
39AQI (US)
39AQI (US)
8th March 2026
38AQI (US)
38AQI (US)
9th March 2026
38AQI (US)
38AQI (US)
10th March 2026
33AQI (US)
33AQI (US)
11th March 2026
39AQI (US)
39AQI (US)
12th March 2026
40AQI (US)
40AQI (US)
13th March 2026
38AQI (US)
38AQI (US)
14th March 2026
35AQI (US)
35AQI (US)
15th March 2026
34AQI (US)
34AQI (US)
16th March 2026
35AQI (US)
35AQI (US)
17th March 2026
33AQI (US)
33AQI (US)
18th March 2026
31AQI (US)
31AQI (US)
19th March 2026
31AQI (US)
31AQI (US)
20th March 2026
37AQI (US)
37AQI (US)
21st March 2026
35AQI (US)
35AQI (US)
22nd March 2026
34AQI (US)
34AQI (US)
23rd March 2026
38AQI (US)
38AQI (US)
24th March 2026
38AQI (US)
38AQI (US)
25th March 2026
34AQI (US)
34AQI (US)
26th March 2026
33AQI (US)
33AQI (US)
27th March 2026
32AQI (US)
32AQI (US)
28th March 2026
33AQI (US)
33AQI (US)
29th March 2026
29AQI (US)
29AQI (US)
30th March 2026
28AQI (US)
28AQI (US)
31st March 2026
26AQI (US)
26AQI (US)
1st April 2026
32AQI (US)
32AQI (US)
2nd April 2026
34AQI (US)
34AQI (US)
3rd April 2026
28AQI (US)
28AQI (US)
4th April 2026
29AQI (US)
29AQI (US)
5th April 2026
28AQI (US)
28AQI (US)
6th April 2026
26AQI (US)
26AQI (US)
7th April 2026
28AQI (US)
28AQI (US)
8th April 2026
30AQI (US)
30AQI (US)
9th April 2026
29AQI (US)
29AQI (US)
10th April 2026
31AQI (US)
31AQI (US)
11th April 2026
32AQI (US)
32AQI (US)
12th April 2026
29AQI (US)
29AQI (US)
13th April 2026
33AQI (US)
33AQI (US)
14th April 2026
34AQI (US)
34AQI (US)
15th April 2026
31AQI (US)
31AQI (US)
16th April 2026
31AQI (US)
31AQI (US)
17th April 2026
18th April 2026
32AQI (US)
32AQI (US)
19th April 2026
34AQI (US)
34AQI (US)
20th April 2026
30AQI (US)
30AQI (US)
21st April 2026
29AQI (US)
29AQI (US)
22nd April 2026
23rd April 2026
26AQI (US)
26AQI (US)
24th April 2026
29AQI (US)
29AQI (US)
25th April 2026
31AQI (US)
31AQI (US)
26th April 2026
33AQI (US)
33AQI (US)
27th April 2026
28AQI (US)
28AQI (US)
28th April 2026
23AQI (US)
23AQI (US)
29th April 2026
23AQI (US)
23AQI (US)
30th April 2026
26AQI (US)
26AQI (US)
1st May 2026
26AQI (US)
26AQI (US)
2nd May 2026
26AQI (US)
26AQI (US)
3rd May 2026
22AQI (US)
22AQI (US)
4th May 2026
28AQI (US)
28AQI (US)
5th May 2026
32AQI (US)
32AQI (US)
6th May 2026
31AQI (US)
31AQI (US)
7th May 2026
28AQI (US)
28AQI (US)
8th May 2026
27AQI (US)
27AQI (US)
9th May 2026
10th May 2026
33AQI (US)
33AQI (US)
11th May 2026
30AQI (US)
30AQI (US)
12th May 2026
28AQI (US)
28AQI (US)
13th May 2026
29AQI (US)
29AQI (US)
14th May 2026
24AQI (US)
24AQI (US)
15th May 2026
38AQI (US)
38AQI (US)
16th May 2026
41AQI (US)
41AQI (US)
17th May 2026
39AQI (US)
39AQI (US)
18th May 2026
37AQI (US)
37AQI (US)
19th May 2026
32AQI (US)
32AQI (US)
20th May 2026
30AQI (US)
30AQI (US)
21st May 2026
31AQI (US)
31AQI (US)
22nd May 2026
33AQI (US)
33AQI (US)
23rd May 2026
33AQI (US)
33AQI (US)
24th May 2026
30AQI (US)
30AQI (US)
25th May 2026
29AQI (US)
29AQI (US)
26th May 2026
26AQI (US)
26AQI (US)
27th May 2026
28AQI (US)
28AQI (US)
28th May 2026
27AQI (US)
27AQI (US)
29th May 2026
26AQI (US)
26AQI (US)
30th May 2026
27AQI (US)
27AQI (US)
31st May 2026
29AQI (US)
29AQI (US)
1st June 2026
31AQI (US)
31AQI (US)
2nd June 2026
31AQI (US)
31AQI (US)
3rd June 2026
29AQI (US)
29AQI (US)
4th June 2026
25AQI (US)
25AQI (US)
5th June 2026
27AQI (US)
27AQI (US)
6th June 2026
25AQI (US)
25AQI (US)
7th June 2026
24AQI (US)
24AQI (US)
8th June 2026
26AQI (US)
26AQI (US)
9th June 2026
26AQI (US)
26AQI (US)
10th June 2026
26AQI (US)
26AQI (US)
11th June 2026
27AQI (US)
27AQI (US)
12th June 2026
26AQI (US)
26AQI (US)
13th June 2026
25AQI (US)
25AQI (US)
14th June 2026
24AQI (US)
24AQI (US)
15th June 2026
26AQI (US)
26AQI (US)
16th June 2026
27AQI (US)
27AQI (US)
17th June 2026
28AQI (US)
28AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
24AQI (US)
24AQI (US)
21st June 2026
22AQI (US)
22AQI (US)
22nd June 2026
24AQI (US)
24AQI (US)
23rd June 2026
24AQI (US)
24AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
24AQI (US)
24AQI (US)
26th June 2026
27AQI (US)
27AQI (US)
27th June 2026
29AQI (US)
29AQI (US)
28th June 2026
27AQI (US)
27AQI (US)
29th June 2026
24AQI (US)
24AQI (US)
30th June 2026
26AQI (US)
26AQI (US)
1st July 2026
26AQI (US)
26AQI (US)
2nd July 2026
27AQI (US)
27AQI (US)
3rd July 2026
28AQI (US)
28AQI (US)
4th July 2026
24AQI (US)
24AQI (US)
5th July 2026
25AQI (US)
25AQI (US)
6th July 2026
28AQI (US)
28AQI (US)
7th July 2026
29AQI (US)
29AQI (US)
8th July 2026
27AQI (US)
27AQI (US)
9th July 2026
29AQI (US)
29AQI (US)
10th July 2026
32AQI (US)
32AQI (US)
11th July 2026
30AQI (US)
30AQI (US)
12th July 2026
29AQI (US)
29AQI (US)
13th July 2026
30AQI (US)
30AQI (US)
14th July 2026
30AQI (US)
30AQI (US)
15th July 2026
27AQI (US)
27AQI (US)
16th July 2026
29AQI (US)
29AQI (US)
17th July 2026
56AQI (US)
56AQI (US)
18th July 2026
56AQI (US)
56AQI (US)
19th July 2026
62AQI (US)
62AQI (US)
20th July 2026
69AQI (US)
69AQI (US)
21st July 2026
71AQI (US)
71AQI (US)
22nd July 2026
74AQI (US)
74AQI (US)
23rd July 2026
70AQI (US)
70AQI (US)
24th July 2026
69AQI (US)
69AQI (US)
25th July 2026
59AQI (US)
59AQI (US)
26th July 2026
61AQI (US)
61AQI (US)
27th July 2026
65AQI (US)
65AQI (US)
28th July 2026
67AQI (US)
67AQI (US)
29th July 2026
68AQI (US)
68AQI (US)
30th July 2026
67AQI (US)
67AQI (US)
31st July 2026
63AQI (US)
63AQI (US)
1st August 2026
59AQI (US)
59AQI (US)
2nd August 2026
62AQI (US)
62AQI (US)
3rd August 2026
67AQI (US)
67AQI (US)
4th August 2026
70AQI (US)
70AQI (US)
5th August 2026
72AQI (US)
72AQI (US)
6th August 2026
71AQI (US)
71AQI (US)
7th August 2026
73AQI (US)
73AQI (US)
8th August 2026
65AQI (US)
65AQI (US)
9th August 2026
59AQI (US)
59AQI (US)
10th August 2026
59AQI (US)
59AQI (US)
11th August 2026
62AQI (US)
62AQI (US)
12th August 2026
57AQI (US)
57AQI (US)
13th August 2026
70AQI (US)
70AQI (US)
14th August 2026
60AQI (US)
60AQI (US)
15th August 2026
64AQI (US)
64AQI (US)
16th August 2026
65AQI (US)
65AQI (US)
17th August 2026
54AQI (US)
54AQI (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
30AQI (US)
42AQI (US)
36AQI (US)
30AQI (US)
30AQI (US)
26AQI (US)
46AQI (US)
64AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202637AQI (US)
30
1
27
1
31
28
30
30
16
15
17
192
34
Highest AQI (US) recorded in
August64AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202528AQI (US)
6
30
31
30
31
22
9
14
16
30
1
29
1
31
254
27
Highest AQI (US) recorded in
September50AQI (US)
Lowest AQI (US) recorded in
May18AQI (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)Umatilla's annual 2026 AQI (US) (37) shows an average percentage change of 32.1% (worsened AQI (US)) compared to previous years: 2025 (28).
