Bad Air Days in Holmes County, Florida: under 1 a Year

under 1 bad air days a year

Rare: among the cleanest-air counties EPA monitors. Ranked 900 of 996 monitored counties, where 1 is worst.

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

Which months to watch

Most bad days here fall in June. 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

In 2000 to 2009 this county averaged 5 bad days a year; in 2016 to 2025, under 1. The air has improved. The worst recent year was 2020, with 3 bad days on 363 monitored days.

Date	AQI	Main pollutant
2020-06-27	138	PM2.5
2020-06-26	128	PM2.5
2020-06-25	108	PM2.5
2022-03-06	91	PM2.5
2020-06-28	88	PM2.5

Most days, not the worst ones

Across 3,611 monitored days from 2016 to 2025, the air in Holmes County rated Good on 59% of them, less often than the 72% typical of monitored counties, and Moderate on 41%. The median day sat at AQI 47; one day in ten went above 59.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)80%2,880 days
ozone20%731 days

Holmes County by year

Year	Days monitored	Good	Moderate	Over 100	Median AQI	Highest AQI
2025*	365	219	146	0	46	79
2024	357	215	142	0	47	73
2023	365	189	176	0	49	87
2022	365	204	161	0	47	91
2021	362	206	156	0	48	74
2020	363	221	139	3	47	138
2019	362	207	155	0	47	84
2018	346	236	110	0	43	81
2017	360	229	131	0	45	83
2016	366	219	147	0	46	80
2015	361	235	126	0	43	77
2014	365	205	160	0	46	100
2013	364	226	138	0	47	90
2012	366	245	121	0	44	84
2011	365	179	186	0	51	90
2010	365	138	227	0	53	93

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

Elsewhere in Florida

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.