Bad Air Days in Oneida County, New York: under 1 a Year

under 1 bad air day a year

Fewer bad air days than most monitored US counties. Ranked 743 of 996 monitored counties, where 1 is worst.

What makes them bad: mostly particles: smoke and dust (100% particle days).

The bad-air season here

Most bad days here fall in June and July. Averaged over 2016 to 2025.

What actually helps here

Bad air days are rare here. A standard furnace filter is enough; no purifier needed for outdoor air.
On the odd bad day, check AirNow and keep windows shut.

The worst days on file

In 2000 to 2009 this county averaged 6 bad days a year; in 2016 to 2025, under 1. The air has improved. The worst recent year was 2023, with 6 bad days on 351 monitored days.

Date	AQI	Main pollutant
2023-06-07	190	PM2.5
2023-06-06	160	PM2.5
2023-06-29	157	PM2.5
2023-06-30	137	PM2.5
2023-07-01	119	PM2.5

The air on a normal day

Across 3,521 monitored days from 2016 to 2025, the air in Oneida County rated Good on 87% of them, more often than the 72% typical of monitored counties, and Moderate on 13%. The median day sat at AQI 26; one day in ten went above 52.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)100%3,521 days

Oneida County by year

Year	Days monitored	Good	Moderate	Over 100	Over 150	Median AQI	Highest AQI
2025*	353	298	55	0	0	27	99
2024	349	300	49	0	0	27	68
2023	351	275	70	6	3	32	190
2022	332	288	44	0	0	26	83
2021	347	311	35	1	0	25	107
2020	349	324	25	0	0	21	81
2019	355	331	24	0	0	23	64
2018	364	311	53	0	0	24	74
2017	359	313	46	0	0	26	67
2016	362	298	64	0	0	27	69
2015	365	263	102	0	0	36	74
2014	356	270	86	0	0	32	82
2013	361	273	88	0	0	32	84
2012	366	244	120	2	0	42	108
2011	365	241	124	0	0	39	93
2010	365	262	103	0	0	38	97

*2025 may be a partial year in EPA's file.

New York compared

How this is counted

A bad air day is a day the county's daily AQI from EPA AirData went above 100, the level where EPA tells children, older adults and people with asthma or heart disease to cut back outdoors. Monitors do not run every day, so yearly counts are scaled to 365 days. This is the record, not today's air: for that, check AirNow. More on the method in how the county numbers are made, on the AQI 100 line in what counts as a bad air day.