What is the air quality trend in South Yuba City?

Over the past 3 days, South Yuba City had an average AQI of 42 based on station measurements. The worst day was 2026-08-06 with AQI 50.

How is South Yuba City air quality measured?

Air quality in South Yuba City 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 South Yuba City, United States

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

Historical PM2.5 and AQI trend from monitoring stations near South Yuba City, United States.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

45h

PM2.5 Station

45h · 13 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	40	40–40	9.5 µg/m³	1h	13
2026-08-07	36	31–48	8.7 µg/m³	24h	14
2026-08-06	50	32–79	12.9 µg/m³	20h	12

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