What is the air quality trend in El Centro?

Over the past 15 days, El Centro had an average AQI of 55 based on station measurements. The worst day was 2026-07-21 with AQI 60.

How is El Centro air quality measured?

Air quality in El Centro 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 El Centro, United States

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

Historical PM2.5 and AQI trend from monitoring stations near El Centro, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 1 station

Temperature GFS model

55pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	51	28–77	14.5 µg/m³	5h	3
2026-07-21	60	35–169	17.9 µg/m³	24h	4
2026-07-20	58	29–190	18.6 µg/m³	24h	4
2026-07-19	57	32–188	18.2 µg/m³	24h	4
2026-07-18	58	26–221	20.1 µg/m³	24h	4
2026-07-17	55	32–168	15.9 µg/m³	24h	4
2026-07-16	58	33–295	21.6 µg/m³	24h	4
2026-07-15	59	30–220	20.0 µg/m³	24h	4
2026-07-14	57	38–177	17.1 µg/m³	24h	4
2026-07-13	49	28–168	13.9 µg/m³	24h	4
2026-07-12	50	17–297	19.7 µg/m³	24h	4
2026-07-11	57	35–190	17.7 µg/m³	24h	4
2026-07-10	51	24–192	16.4 µg/m³	24h	3
2026-07-09	52	37–189	16.4 µg/m³	24h	4
2026-07-08	59	32–187	19.4 µg/m³	17h	4

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