What is the air quality trend in Paso Robles?

Over the past 8 days, Paso Robles had an average AQI of 51 based on station measurements. The worst day was 2026-09-01 with AQI 83.

How is Paso Robles air quality measured?

Air quality in Paso Robles 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 Paso Robles, United States

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	19	17–20	4.5 µg/m³	19h	3
2026-09-04	29	16–57	7.1 µg/m³	24h	3
2026-09-03	44	26–122	12.2 µg/m³	24h	4
2026-09-02	74	38–121	23.1 µg/m³	24h	4
2026-09-01	83	36–166	32.0 µg/m³	23h	4
2026-08-31	53	44–81	13.4 µg/m³	24h	4
2026-08-30	49	34–94	13.2 µg/m³	24h	3
2026-08-29	58	55–62	15.8 µg/m³	2h	4

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