What is the air quality trend in Meriden?

Over the past 8 days, Meriden had an average AQI of 59 based on station measurements. The worst day was 2026-07-16 with AQI 83.

How is Meriden air quality measured?

Air quality in Meriden 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 Meriden, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

159h

PM2.5 Station

159h · 5 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	25	25–25	6.0 µg/m³	1h	5
2026-07-21	50	25–83	13.1 µg/m³	21h	4
2026-07-20	61	2–117	18.1 µg/m³	21h	4
2026-07-19	62	30–112	18.3 µg/m³	23h	4
2026-07-18	63	4–116	19.3 µg/m³	24h	4
2026-07-17	78	21–168	28.3 µg/m³	24h	5
2026-07-16	83	30–156	27.6 µg/m³	23h	5
2026-07-15	51	28–156	14.1 µg/m³	22h	5

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