What is the air quality trend in Addison?

Over the past 8 days, Addison had an average AQI of 31 based on station measurements. The worst day was 2026-10-21 with AQI 55.

How is Addison air quality measured?

Air quality in Addison 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 Addison, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 285 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	55	52–57	13.9 µg/m³	4.4	4h	285
2026-10-20	51	30–70	13.4 µg/m³	1.1	24h	250
2026-10-19	28	21–40	6.7 µg/m³	3.4	24h	284
2026-10-18	23	18–35	5.5 µg/m³	—	24h	261
2026-10-17	16	13–23	3.9 µg/m³	4.5	24h	283
2026-10-16	19	11–40	4.5 µg/m³	1.1	24h	271
2026-10-15	24	14–40	5.7 µg/m³	1.6	24h	282
2026-10-14	35	18–52	8.4 µg/m³	1.3	18h	281

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