What is the air quality trend in Summit?

Over the past 8 days, Summit had an average AQI of 78 based on station measurements. The worst day was 2026-07-17 with AQI 116.

How is Summit air quality measured?

Air quality in Summit 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 Summit, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 6 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	40	19–67	10.5 µg/m³	124.3	7h	8
2026-07-21	57	33–86	15.6 µg/m³	120.0	24h	8
2026-07-20	57	25–106	16.2 µg/m³	149.0	24h	8
2026-07-19	70	38–112	21.1 µg/m³	102.8	24h	8
2026-07-18	102	63–152	35.4 µg/m³	125.2	24h	8
2026-07-17	116	54–172	45.0 µg/m³	122.2	24h	8
2026-07-16	98	60–167	35.5 µg/m³	138.1	24h	7
2026-07-15	89	32–153	30.0 µg/m³	111.2	17h	6

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