What is the air quality trend in Oswego?

Over the past 8 days, Oswego had an average AQI of 100 based on station measurements. The worst day was 2026-07-17 with AQI 226.

How is Oswego air quality measured?

Air quality in Oswego 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 Oswego, United States

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

Historical PM2.5 and AQI trend from monitoring stations near Oswego, 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 · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	60	30–95	17.3 µg/m³	23h	47
2026-07-20	98	35–108	34.3 µg/m³	24h	46
2026-07-19	108	13–161	39.5 µg/m³	24h	49
2026-07-18	50	21–90	12.8 µg/m³	24h	49
2026-07-17	226	66–352	172.2 µg/m³	24h	50
2026-07-16	151	11–331	99.7 µg/m³	24h	46
2026-07-15	52	49–59	12.7 µg/m³	23h	50
2026-07-14	60	60–60	16.3 µg/m³	1h	48

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