What is the air quality trend in Rochester?

Over the past 8 days, Rochester had an average AQI of 67 based on station measurements. The worst day was 2026-05-25 with AQI 92.

How is Rochester air quality measured?

Air quality in Rochester 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 Rochester, United Kingdom

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

Historical PM2.5 and AQI trend from monitoring stations near Rochester, United Kingdom.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 17 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	39	39–39	9.3 µg/m³	—	1h	17
2026-05-29	52	30–74	13.7 µg/m³	22.2	24h	22
2026-05-28	64	33–179	20.2 µg/m³	29.8	24h	21
2026-05-27	70	45–109	20.9 µg/m³	31.2	24h	22
2026-05-26	78	53–154	24.7 µg/m³	28.6	24h	24
2026-05-25	92	51–153	31.0 µg/m³	33.0	24h	27
2026-05-24	69	45–123	20.8 µg/m³	26.9	24h	22
2026-05-23	75	42–156	23.7 µg/m³	21.8	23h	24

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