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

under 1 bad air days a year

Rare: among the cleanest-air counties EPA monitors. Ranked 924 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 Santa Rosa

Most bad days here fall in June 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

In 2000 to 2009 this county averaged 21 bad days a year; in 2016 to 2025, under 1. The air has improved. The worst recent year was 2022, with 1 bad day on 365 monitored days.

Date	AQI	Main pollutant
2022-06-13	109	PM2.5
2023-11-29	103	PM2.5
2023-06-09	100	Ozone
2023-06-10	100	Ozone
2017-05-09	97	Ozone

Most days, not the worst ones

Across 3,647 monitored days from 2016 to 2025, the air in Santa Rosa County rated Good on 65% of them, less often than the 72% typical of monitored counties, and Moderate on 35%. The median day sat at AQI 45; one day in ten went above 59.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)69%2,514 days
ozone31%1,133 days

Year by year

Year	Days monitored	Good	Moderate	Over 100	Over 150	Median AQI	Highest AQI
2025*	365	258	107	0	0	44	80
2024	366	235	131	0	0	46	81
2023	365	207	157	1	0	47	103
2022	365	239	125	1	0	44	109
2021	364	254	110	0	0	44	79
2020	365	223	142	0	0	47	86
2019	364	229	135	0	0	44	93
2018	363	240	123	0	0	43	90
2017	364	208	156	0	0	47	97
2016	366	267	99	0	0	43	80
2015	365	238	127	0	0	44	97
2014	365	213	149	3	0	46	136
2013	365	235	130	0	0	46	97
2012	366	207	158	1	0	46	101
2011	365	185	170	10	0	50	147
2010	365	168	191	6	2	52	156

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

Florida 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.