What is the air quality trend in Framingham Center?

Over the past 8 days, Framingham Center had an average AQI of 62 based on station measurements. The worst day was 2026-07-17 with AQI 114.

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

167h

PM2.5 Station

167h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	20	20–20	4.8 µg/m³	5.0	1h	1
2026-07-21	46	30–68	11.4 µg/m³	13.1	24h	10
2026-07-20	56	28–168	16.5 µg/m³	5.8	24h	11
2026-07-19	55	35–83	14.4 µg/m³	21.6	24h	11
2026-07-18	71	27–104	22.2 µg/m³	46.7	24h	11
2026-07-17	114	33–198	50.5 µg/m³	4.1	24h	11
2026-07-16	82	38–179	29.9 µg/m³	—	24h	10
2026-07-15	56	30–103	15.0 µg/m³	26.9	22h	11

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