Bad Air Days in Wayne County, Utah

Not enough data

EPA monitors in Wayne County ran on too few days between 2016 and 2025 to give a fair yearly count (about 31% of days covered). Neighbouring counties below are a better guide.

What actually helps here

EPA monitors here ran too few days to give a fair yearly count. Use AirNow for today's air.

The worst days on file

Date	AQI	Main pollutant
2021-08-08	84	PM2.5
2017-06-21	74	PM2.5
2018-07-31	70	PM2.5
2020-10-06	70	PM2.5
2021-08-11	69	PM2.5

An ordinary day in Wayne

Across 1,146 monitored days from 2016 to 2025, the air in Wayne County rated Good on 97% of them, more often than the 72% typical of monitored counties, and Moderate on 3%. The median day sat at AQI 12; one day in ten went above 28.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)100%1,146 days

Wayne County by year

Year	Days monitored	Good	Moderate	Median AQI	Highest AQI
2025*	94	92	2	14	57
2024	119	116	3	11	56
2023	117	115	2	12	54
2022	122	117	5	12	62
2021	120	111	9	11	84
2020	116	111	5	10	70
2019	109	109	0	12	27
2018	117	111	6	13	70
2017	112	110	2	10	74
2016	120	120	0	11	46
2015	119	117	2	10	68
2014	116	116	0	11	39
2013	119	119	0	12	47
2012	120	115	5	14	61
2011	120	118	2	12	56
2010	112	112	0	12	33

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

Utah 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.