What is the air quality trend in Holly Springs?

Over the past 8 days, Holly Springs had an average AQI of 61 based on station measurements. The worst day was 2026-07-17 with AQI 98.

How is Holly Springs air quality measured?

Air quality in Holly Springs 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 Holly Springs, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

153h

PM2.5 Station

153h · 5 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	44	5–67	10.9 µg/m³	20h	4
2026-07-20	51	20–98	13.5 µg/m³	21h	4
2026-07-19	50	20–121	13.6 µg/m³	19h	4
2026-07-18	49	28–89	12.9 µg/m³	22h	4
2026-07-17	98	26–221	48.7 µg/m³	23h	4
2026-07-16	73	17–274	29.6 µg/m³	24h	5
2026-07-15	51	32–143	13.8 µg/m³	23h	4
2026-07-14	78	78–78	24.9 µg/m³	1h	5

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