What is the air quality trend in Buffalo?

Over the past 21 days, Buffalo had an average AQI of 31 based on station measurements. The worst day was 2026-05-09 with AQI 42.

How is Buffalo air quality measured?

Air quality in Buffalo 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 Buffalo, United States

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

460h

PM2.5 Station

460h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	30	13–60	7.4 µg/m³	19h	3
2026-05-28	27	16–40	6.4 µg/m³	23h	3
2026-05-27	33	18–56	7.9 µg/m³	24h	3
2026-05-26	30	14–58	7.3 µg/m³	23h	3
2026-05-25	28	15–51	6.8 µg/m³	24h	3
2026-05-24	31	14–46	7.3 µg/m³	24h	3
2026-05-23	23	3–45	5.5 µg/m³	23h	3
2026-05-22	23	12–31	5.6 µg/m³	23h	3
2026-05-21	26	14–42	6.1 µg/m³	24h	3
2026-05-20	23	10–36	5.5 µg/m³	22h	3
2026-05-19	33	11–57	8.1 µg/m³	24h	3
2026-05-18	34	12–60	8.2 µg/m³	24h	2
2026-05-17	33	15–69	8.0 µg/m³	22h	3
2026-05-16	37	21–63	9.2 µg/m³	20h	3
2026-05-15	35	8–56	8.3 µg/m³	23h	3
2026-05-14	33	17–59	8.1 µg/m³	23h	3
2026-05-13	36	18–63	8.9 µg/m³	24h	3
2026-05-12	33	13–45	7.9 µg/m³	24h	3
2026-05-11	29	14–42	6.9 µg/m³	23h	3
2026-05-10	32	8–50	7.7 µg/m³	22h	3
2026-05-09	42	39–46	10.2 µg/m³	2h	3

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