What is the air quality trend in Aurora?

Over the past 8 days, Aurora had an average AQI of 31 based on station measurements. The worst day was 2026-10-20 with AQI 53.

How is Aurora air quality measured?

Air quality in Aurora 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 Aurora, United States

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

Historical PM2.5 and AQI trend from monitoring stations near Aurora, 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 · 92 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	53	26–72	14.2 µg/m³	20h	80
2026-10-19	28	21–42	6.6 µg/m³	24h	93
2026-10-18	23	18–37	5.6 µg/m³	24h	85
2026-10-17	16	13–25	3.9 µg/m³	24h	93
2026-10-16	18	10–34	4.4 µg/m³	24h	88
2026-10-15	24	14–40	5.8 µg/m³	24h	93
2026-10-14	38	18–53	9.2 µg/m³	24h	92
2026-10-13	48	47–49	11.5 µg/m³	2h	92

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