What is the air quality trend in Superior?

Over the past 7 days, Superior had an average AQI of 111 based on station measurements. The worst day was 2026-07-17 with AQI 304.

How is Superior air quality measured?

Air quality in Superior 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 Superior, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

134h

PM2.5 Station

134h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	45	20–67	11.6 µg/m³	22h	3
2026-07-20	77	33–106	24.6 µg/m³	24h	3
2026-07-19	101	59–156	35.4 µg/m³	24h	3
2026-07-18	96	54–179	35.5 µg/m³	23h	3
2026-07-17	304	158–441	261.0 µg/m³	24h	2
2026-07-16	116	27–246	77.7 µg/m³	7h	1
2026-07-15	42	13–63	10.3 µg/m³	10h	1

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