What is the air quality trend in Aurora?

Over the past 8 days, Aurora had an average AQI of 102 based on station measurements. The worst day was 2026-07-17 with AQI 228.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	64	31–97	19.2 µg/m³	20h	81
2026-07-20	100	59–108	35.2 µg/m³	24h	84
2026-07-19	111	61–162	40.7 µg/m³	24h	87
2026-07-18	50	30–89	12.9 µg/m³	24h	87
2026-07-17	228	67–350	173.6 µg/m³	24h	91
2026-07-16	150	23–324	98.8 µg/m³	24h	84
2026-07-15	54	51–99	13.8 µg/m³	24h	87
2026-07-14	60	60–60	16.5 µg/m³	3h	90

Back to Aurora Air Quality