What is the air quality trend in Monroe?

Over the past 7 days, Monroe had an average AQI of 39 based on station measurements. The worst day was 2026-10-20 with AQI 53.

How is Monroe air quality measured?

Air quality in Monroe 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 Monroe, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

62h

PM2.5 Station

62h · 2 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	21–114	15.2 µg/m³	11h	1
2026-10-19	47	18–112	13.7 µg/m³	10h	1
2026-10-18	32	13–72	8.4 µg/m³	10h	1
2026-10-17	18	11–42	4.2 µg/m³	7h	1
2026-10-16	42	12–135	13.5 µg/m³	9h	1
2026-10-15	42	10–149	12.4 µg/m³	9h	1
2026-10-14	39	14–94	11.1 µg/m³	6h	1

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