What is the air quality trend in Norman?

Over the past 7 days, Norman had an average AQI of 25 based on station measurements. The worst day was 2026-05-24 with AQI 28.

How is Norman air quality measured?

Air quality in Norman 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 Norman, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 3 stations

Temperature GFS model

27pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-28	26	11–41	6.3 µg/m³	23h	3
2026-05-27	25	17–36	5.9 µg/m³	24h	3
2026-05-26	28	18–45	6.7 µg/m³	24h	4
2026-05-25	26	13–49	6.2 µg/m³	24h	3
2026-05-24	28	13–46	6.7 µg/m³	24h	3
2026-05-23	23	14–33	5.6 µg/m³	24h	3
2026-05-22	23	13–37	5.5 µg/m³	23h	3

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