What is the air quality trend in Redmond?

Over the past 7 days, Redmond had an average AQI of 77 based on station measurements. The worst day was 2026-07-21 with AQI 194.

How is Redmond air quality measured?

Air quality in Redmond 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 Redmond, United States

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

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

132

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	194	43–362	129.8 µg/m³	138.1	24h	1
2026-07-20	78	11–166	27.7 µg/m³	30.5	24h	1
2026-07-19	47	11–165	13.9 µg/m³	14.5	24h	1
2026-07-18	50	19–164	15.2 µg/m³	15.8	24h	1
2026-07-17	56	23–185	18.7 µg/m³	19.7	24h	1
2026-07-16	51	15–107	14.7 µg/m³	15.5	24h	1
2026-07-15	67	24–106	20.8 µg/m³	21.9	23h	1

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