Bad Air Days in Fayette County, Texas: 0 a Year

0 bad air days a year

Rare: among the cleanest-air counties EPA monitors. Ranked 986 of 996 monitored counties, where 1 is worst.

What to buy, and what not to

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 0 bad days a year; in 2016 to 2025, 0. Not much has changed.

Date	AQI	Main pollutant
2018-06-30	96	PM2.5
2018-07-01	94	PM2.5
2018-07-16	94	PM2.5
2018-08-12	89	PM2.5
2018-08-13	88	PM2.5

Most days, not the worst ones

Across 1,044 monitored days from 2016 to 2018, the air in Fayette County rated Good on 81% of them, more often than the 72% typical of monitored counties, and Moderate on 19%. The median day sat at AQI 34; one day in ten went above 55.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)100%1,044 days

Year by year

Year	Days monitored	Good	Moderate	Median AQI	Highest AQI
2018	330	262	68	34	96
2017	353	303	50	33	84
2016	361	283	78	34	86
2015	361	271	90	33	80
2014	352	239	113	39	90
2013	362	255	107	38	88
2012	365	260	105	39	77
2011	361	239	122	39	93
2010	361	251	110	40	78

Nearby counties on file

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.