Plummer, Liberty Lake, Washington, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Plummer, Liberty Lake, Washington, United States
AQI Trends: Highest and Lowest
Same Day Analysis (6th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 21 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Mar - 6th Mar 2026
Plummer, Liberty Lake, Washington, United States
6 AM5th Mar 2026
5 PM
5 AM6th Mar 2026
62AQI
30AQI
59AQI
10AQI
In the last 24 hours,
Plummer's AQI reached its highest point of 62 at 9 AM during the Day, while the lowest point, 10, was recorded at 4 AM during the Night between 5th Mar and 6th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Plummer, Liberty Lake, Washington, United States
6°C3/14°C
3°C0/8°C
5°C0/12°C
6°C4/9°C
2°C1/4°C
3°C0/9°C
2°C-2/8°C
2°C-2/8°C
3°C-1/9°C
3°C2/6°C
3°C1/5°C
3°C0/9°C
1°C-2/5°C
-2°C-6/0°C
-3°C-7/2°C
-5°C-11/-3°C
-3°C-7/4°C
3°C-2/10°C
2°C0/5°C
1°C-1/3°C
1°C-1/5°C
2°C-1/8°C
3°C0/9°C
4°C1/10°C
4°C-2/11°C
5°C0/11°C
6°C1/13°C
6°C5/8°C
4°C1/8°C
3°C0/7°C
41AQI
29AQI
33AQI
24AQI
2026 Days Vs Air Quality
Plummer, Liberty Lake, Washington, United States
98%
64
2%
1
Total number of days with different AQI categories in last 66 days in 2026 (299 days remaining)
Under WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2026, 98% of 66 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Plummer, Liberty Lake, Washington, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
63AQI (US)
47AQI (US)
34AQI (US)
32AQI (US)
31AQI (US)
24AQI (US)
29AQI (US)
30AQI (US)
29AQI (US)
38AQI (US)
41AQI (US)
26AQI (US)
18AQI (US)
41AQI (US)
44AQI (US)
38AQI (US)
38AQI (US)
35AQI (US)
34AQI (US)
31AQI (US)
34AQI (US)
28AQI (US)
34AQI (US)
32AQI (US)
26AQI (US)
31AQI (US)
31AQI (US)
24AQI (US)
28AQI (US)
33AQI (US)
20AQI (US)
38AQI (US)
35AQI (US)
31AQI (US)
26AQI (US)
29AQI (US)
28AQI (US)
27AQI (US)
33AQI (US)
34AQI (US)
25AQI (US)
23AQI (US)
25AQI (US)
26AQI (US)
31AQI (US)
21AQI (US)
37AQI (US)
41AQI (US)
34AQI (US)
26AQI (US)
30AQI (US)
35AQI (US)
30AQI (US)
36AQI (US)
45AQI (US)
32AQI (US)
20AQI (US)
17AQI (US)
26AQI (US)
30AQI (US)
36AQI (US)
24AQI (US)
39AQI (US)
43AQI (US)
21AQI (US)
33AQI (US)
30AQI (US)
32AQI (US)
No. of days
202632AQI (US)
Highest AQI (US) recorded in
January33AQI (US)
Lowest AQI (US) recorded in
February30AQI (US)
202537AQI (US)
Highest AQI (US) recorded in
September57AQI (US)
Lowest AQI (US) recorded in
May23AQI (US)
202431AQI (US)
Highest AQI (US) recorded in
August47AQI (US)
Lowest AQI (US) recorded in
February20AQI (US)
202330AQI (US)
Highest AQI (US) recorded in
June147AQI (US)
Lowest AQI (US) recorded in
February20AQI (US)
202232AQI (US)
Highest AQI (US) recorded in
September61AQI (US)
Lowest AQI (US) recorded in
April21AQI (US)
202135AQI (US)
Highest AQI (US) recorded in
August78AQI (US)
Lowest AQI (US) recorded in
February19AQI (US)
202035AQI (US)
Highest AQI (US) recorded in
September82AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Plummer's annual 2026 AQI (US) (32) shows an average percentage change of -4.01% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (35), 2022 (32), 2023 (30), 2024 (31), 2025 (37).