What is the air quality trend in Howard?

Over the past 14 days, Howard had an average AQI of 99 based on station measurements. The worst day was 2026-07-17 with AQI 322.

How is Howard air quality measured?

Air quality in Howard 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 Howard, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

110h

PM2.5 Station

110h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	34	23–46	8.2 µg/m³	3h	1
2026-07-20	125	105–158	46.8 µg/m³	6h	1
2026-07-19	209	172–246	146.0 µg/m³	2h	1
2026-07-18	114	46–181	51.8 µg/m³	6h	1
2026-07-17	322	293–339	277.9 µg/m³	4h	1
2026-07-16	201	190–216	147.9 µg/m³	4h	1
2026-07-15	65	38–195	31.3 µg/m³	6h	1
2026-07-14	45	41–50	10.9 µg/m³	10h	1
2026-07-13	53	44–61	13.3 µg/m³	18h	1
2026-07-12	56	52–63	14.7 µg/m³	15h	1
2026-07-11	56	41–63	14.6 µg/m³	12h	1
2026-07-10	36	25–44	8.5 µg/m³	11h	1
2026-07-09	27	16–31	6.5 µg/m³	6h	1
2026-07-08	46	29–52	11.0 µg/m³	7h	1

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