What is the air quality trend in Klamath Falls?

Over the past 13 days, Klamath Falls had an average AQI of 77 based on station measurements. The worst day was 2026-07-18 with AQI 161.

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

242h

PM2.5 Station

242h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	38	10–80	10.1 µg/m³	20h	1
2026-07-20	68	7–145	22.1 µg/m³	24h	1
2026-07-19	63	17–165	21.0 µg/m³	24h	1
2026-07-18	161	35–286	100.9 µg/m³	24h	1
2026-07-17	151	7–203	93.4 µg/m³	24h	1
2026-07-16	136	9–260	64.0 µg/m³	24h	1
2026-07-15	17	4–62	4.3 µg/m³	11h	1
2026-07-14	55	3–110	17.1 µg/m³	23h	1
2026-07-13	109	13–187	43.7 µg/m³	24h	1
2026-07-12	89	10–154	31.0 µg/m³	23h	1
2026-07-11	68	1–121	23.4 µg/m³	19h	1
2026-07-06	22	22–22	5.3 µg/m³	1h	3
2026-07-02	25	25–25	6.0 µg/m³	1h	3

Back to Klamath Falls Air Quality