What is the air quality trend in Santa Clara?

Over the past 8 days, Santa Clara had an average AQI of 35 based on station measurements. The worst day was 2026-08-03 with AQI 46.

How is Santa Clara air quality measured?

Air quality in Santa Clara 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 Santa Clara, United States

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 8 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-08-08	34	32–37	8.3 µg/m³	10.6	6h	77
2026-08-07	33	24–40	7.9 µg/m³	5.5	24h	90
2026-08-06	34	28–47	8.2 µg/m³	5.1	24h	86
2026-08-05	36	34–42	8.7 µg/m³	7.0	24h	85
2026-08-04	40	33–47	9.6 µg/m³	7.9	24h	86
2026-08-03	46	37–52	10.9 µg/m³	15.9	24h	82
2026-08-02	34	30–38	8.1 µg/m³	9.9	24h	87
2026-08-01	30	27–34	7.2 µg/m³	5.7	15h	87

Back to Santa Clara Air Quality