What is the air quality trend in Framingham Center?

Over the past 7 days, Framingham Center had an average AQI of 74 based on station measurements. The worst day was 2026-07-17 with AQI 134.

How is Framingham Center air quality measured?

Air quality in Framingham Center 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 Framingham Center, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	48	34–61	11.7 µg/m³	13.1	24h	8
2026-07-20	58	28–164	17.0 µg/m³	5.8	24h	10
2026-07-19	57	38–97	15.8 µg/m³	21.6	24h	11
2026-07-18	77	27–126	24.7 µg/m³	46.7	24h	10
2026-07-17	134	32–199	60.0 µg/m³	4.1	24h	11
2026-07-16	91	36–204	36.8 µg/m³	—	24h	10
2026-07-15	58	40–101	15.9 µg/m³	26.6	24h	10

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