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

under 1 bad air days a year

Rare: among the cleanest-air counties EPA monitors. Ranked 849 of 996 monitored counties, where 1 is worst.

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

The bad-air season here

Most bad days here fall in June and December. Averaged over 2016 to 2025.

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 4 bad days a year; in 2016 to 2025, under 1. The air has improved. The worst recent year was 2020, with 2 bad days on 363 monitored days.

Date	AQI	Main pollutant
2025-12-12	155	PM2.5
2020-06-26	140	PM2.5
2020-06-27	116	PM2.5
2025-12-11	106	PM2.5
2017-05-09	90	Ozone

The air on a normal day

Across 3,614 monitored days from 2016 to 2025, the air in Baker County rated Good on 82% of them, more often than the 72% typical of monitored counties, and Moderate on 18%. The median day sat at AQI 39; one day in ten went above 52.

The pollutant setting the AQI on an ordinary day here:

ozone57%2,044 days
fine particles (PM2.5)43%1,570 days

Every recent year on file

Year	Days monitored	Good	Moderate	Over 100	Over 150	Median AQI	Highest AQI
2025*	364	253	109	2	1	44	155
2024	359	279	80	0	0	42	87
2023	364	248	116	0	0	43	89
2022	365	266	99	0	0	43	87
2021	365	275	90	0	0	42	87
2020	363	283	78	2	0	40	140
2019	361	341	20	0	0	33	77
2018	360	341	19	0	0	31	87
2017	355	339	16	0	0	33	90
2016	358	334	24	0	0	34	80
2015	364	356	8	0	0	32	77
2014	362	347	15	0	0	33	74
2013	365	355	10	0	0	31	84
2012	364	340	24	0	0	33	100
2011	355	329	26	0	0	36	87
2010	363	336	27	0	0	36	97

*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.