What is the air quality trend in McAllen?

Over the past 7 days, McAllen had an average AQI of 34 based on station measurements. The worst day was 2026-05-22 with AQI 37.

How is McAllen air quality measured?

Air quality in McAllen 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 McAllen, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

142h

PM2.5 Station

142h · 2 stations

Temperature GFS model

27pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-28	35	12–66	8.9 µg/m³	21h	1
2026-05-27	30	1–52	7.2 µg/m³	21h	1
2026-05-26	33	10–62	8.1 µg/m³	21h	1
2026-05-25	34	15–49	8.1 µg/m³	20h	1
2026-05-24	35	3–64	8.6 µg/m³	22h	1
2026-05-23	37	21–52	8.8 µg/m³	17h	2
2026-05-22	37	16–60	8.9 µg/m³	20h	2

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