What is the air quality trend in Frankfort?

Over the past 8 days, Frankfort had an average AQI of 99 based on station measurements. The worst day was 2026-07-17 with AQI 233.

How is Frankfort air quality measured?

Air quality in Frankfort 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 Frankfort, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 6 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	34	34–34	8.2 µg/m³	1h	6
2026-07-21	63	32–98	18.7 µg/m³	24h	214
2026-07-20	98	51–106	34.2 µg/m³	24h	205
2026-07-19	111	44–160	40.5 µg/m³	24h	214
2026-07-18	50	33–87	13.0 µg/m³	24h	215
2026-07-17	233	68–364	179.9 µg/m³	24h	225
2026-07-16	150	53–324	97.5 µg/m³	24h	209
2026-07-15	60	52–190	18.9 µg/m³	22h	218

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