What is the air quality trend in Deerfield?

Over the past 7 days, Deerfield had an average AQI of 16 based on station measurements. The worst day was 2026-05-25 with AQI 37.

How is Deerfield air quality measured?

Air quality in Deerfield 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 Deerfield, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

76h

PM2.5 Station

76h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	6	5–7	1.0 µg/m³	1.4	3h	1
2026-05-28	9	2–18	2.2 µg/m³	2.3	8h	1
2026-05-27	36	4–66	9.4 µg/m³	10.2	19h	1
2026-05-26	15	4–29	3.6 µg/m³	3.8	16h	1
2026-05-25	37	2–75	10.0 µg/m³	10.3	22h	1
2026-05-24	7	4–10	1.7 µg/m³	1.7	6h	1
2026-05-23	4	3–5	1.0 µg/m³	1.2	2h	1

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