What is the air quality trend in Morgan Hill?

Over the past 8 days, Morgan Hill had an average AQI of 23 based on station measurements. The worst day was 2026-05-23 with AQI 31.

How is Morgan Hill air quality measured?

Air quality in Morgan Hill 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 Morgan Hill, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 33 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	18	15–19	4.2 µg/m³	5h	31
2026-05-29	19	13–26	4.5 µg/m³	24h	30
2026-05-28	28	17–58	6.8 µg/m³	24h	29
2026-05-27	23	18–35	5.4 µg/m³	24h	31
2026-05-26	22	17–25	5.2 µg/m³	24h	31
2026-05-25	21	18–25	5.0 µg/m³	24h	30
2026-05-24	25	23–28	5.9 µg/m³	24h	32
2026-05-23	31	25–97	8.1 µg/m³	17h	31

Back to Morgan Hill Air Quality