Bad Air Days in Houston County, Georgia: 1 a Year

1 bad air day a year

Fewer bad air days than most monitored US counties. Ranked 595 of 996 monitored counties, where 1 is worst.

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

When the bad days come in Houston

Most bad days here fall in March and November. Averaged over 2016 to 2025.

Is a purifier worth it 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.

Better or worse than it was

The worst recent year was 2021, with 4 bad days on 359 monitored days.

Date	AQI	Main pollutant
2019-03-21	153	PM2.5
2023-07-18	152	PM2.5
2020-06-27	114	PM2.5
2021-03-14	111	PM2.5
2018-03-11	108	PM2.5

Most days, not the worst ones

Across 3,533 monitored days from 2016 to 2025, the air in Houston County rated Good on 57% of them, less often than the 72% typical of monitored counties, and Moderate on 42%. The median day sat at AQI 47; one day in ten went above 62.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)100%3,533 days

Year by year

Year	Days monitored	Good	Moderate	Over 100	Over 150	Median AQI	Highest AQI
2025*	364	222	142	0	0	46	93
2024	362	247	114	1	0	43	105
2023	365	190	174	1	1	49	152
2022	362	214	147	1	0	45	102
2021	359	182	173	4	0	49	111
2020	363	202	160	1	0	47	114
2019	354	173	179	2	1	51	153
2018	322	196	124	2	0	46	108
2017	330	183	147	0	0	47	93
2016	352	222	128	2	0	44	107
2015	363	202	161	0	0	47	96
2014	348	115	230	3	0	55	129
2013	351	166	185	0	0	51	88
2012	330	116	213	1	0	53	142
2011	363	104	259	0	0	58	96
2010	331	79	252	0	0	57	99

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

Georgia 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.