What is the air quality trend in Mill Creek?

Over the past 7 days, Mill Creek had an average AQI of 12 based on station measurements. The worst day was 2026-05-24 with AQI 17.

How is Mill Creek air quality measured?

Air quality in Mill Creek 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 Mill Creek, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-28	12	8–21	2.8 µg/m³	—	24h	1
2026-05-27	8	8–12	2.1 µg/m³	—	24h	1
2026-05-26	9	8–12	2.2 µg/m³	—	24h	1
2026-05-25	12	8–21	2.9 µg/m³	—	24h	1
2026-05-24	17	12–21	4.0 µg/m³	—	24h	1
2026-05-23	13	8–21	3.1 µg/m³	—	24h	1
2026-05-22	16	8–29	3.9 µg/m³	0.2	22h	1

Back to Mill Creek Air Quality