What is the air quality trend in Pendleton?

Over the past 7 days, Pendleton had an average AQI of 66 based on station measurements. The worst day was 2026-08-05 with AQI 94.

How is Pendleton air quality measured?

Air quality in Pendleton is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Pendleton, United States

Name: Pendleton Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Pendleton, United States.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

145h

PM2.5 Station

145h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-07	84	23–183	36.3 µg/m³	17h	2
2026-08-06	78	21–244	34.7 µg/m³	21h	2
2026-08-05	94	20–166	36.1 µg/m³	21h	2
2026-08-04	79	7–170	29.3 µg/m³	23h	2
2026-08-03	40	3–203	15.4 µg/m³	21h	2
2026-08-02	48	14–155	14.6 µg/m³	20h	2
2026-08-01	45	12–157	14.0 µg/m³	22h	2

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