What is the air quality trend in Chino Hills?

Over the past 8 days, Chino Hills had an average AQI of 44 based on station measurements. The worst day was 2026-06-05 with AQI 63.

How is Chino Hills air quality measured?

Air quality in Chino Hills 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 Chino Hills, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-06-09	16	16–16	3.9 µg/m³	4.5	1h	2
2026-06-08	36	17–44	8.7 µg/m³	6.2	24h	85
2026-06-07	36	34–40	8.7 µg/m³	6.0	24h	90
2026-06-06	49	42–55	11.7 µg/m³	10.7	24h	87
2026-06-05	63	53–73	17.8 µg/m³	18.8	24h	91
2026-06-04	54	43–65	14.0 µg/m³	13.3	24h	90
2026-06-03	51	35–66	13.2 µg/m³	10.3	24h	91
2026-06-02	53	44–59	13.4 µg/m³	10.6	23h	91

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