What is the air quality trend in New Castle?

Over the past 3 days, New Castle had an average AQI of 28 based on station measurements. The worst day was 2026-05-27 with AQI 34.

How is New Castle air quality measured?

Air quality in New Castle 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 New Castle, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

43h

PM2.5 Station

43h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	17	5–36	4.1 µg/m³	16h	2
2026-05-28	34	16–160	9.6 µg/m³	22h	2
2026-05-27	34	21–47	8.1 µg/m³	5h	2

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