What is the air quality trend in Klamath Falls?

Over the past 3 days, Klamath Falls had an average AQI of 49 based on station measurements. The worst day was 2026-10-20 with AQI 118.

How is Klamath Falls air quality measured?

Air quality in Klamath Falls 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 Klamath Falls, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

11h

PM2.5 Station

11h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	14	3–44	3.3 µg/m³	4.0	4h	1
2026-10-20	118	24–496	91.8 µg/m³	92.7	6h	1
2026-10-19	16	16–16	3.9 µg/m³	4.1	1h	1

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