Bad Air Days in Kleberg County, Texas: 2 a Year

2 bad air days a year

About the middle of monitored US counties. Ranked 438 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 May and July. 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 3 bad days a year; in 2016 to 2025, 2. Not much has changed. The worst recent year was 2020, with 6 bad days on 330 monitored days.

Date	AQI	Main pollutant
2020-06-26	174	PM2.5
2018-11-29	164	PM2.5
2020-06-27	162	PM2.5
2022-06-12	133	PM2.5
2022-06-16	127	PM2.5

An ordinary day in Kleberg

Across 2,946 monitored days from 2016 to 2025, the air in Kleberg County rated Good on 58% of them, less often than the 72% typical of monitored counties, and Moderate on 41%. The median day sat at AQI 45; one day in ten went above 66.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)100%2,946 days

Every recent year on file

Year	Days monitored	Good	Moderate	Over 100	Over 150	Median AQI	Highest AQI
2025*	120	62	57	1	0	49	107
2024	349	204	141	4	0	43	121
2023	329	190	139	0	0	44	89
2022	347	196	147	4	0	47	133
2021	348	185	162	1	0	48	109
2020	330	181	143	6	2	46	174
2019	284	182	102	0	0	41	89
2018	342	188	150	4	1	47	164
2017	344	215	129	0	0	43	98
2016	153	109	44	0	0	37	93
2015	354	218	136	0	0	44	95
2014	343	213	130	0	0	43	99
2013	349	232	116	1	0	41	107
2012	328	187	141	0	0	46	90
2011	237	108	128	1	0	52	109
2010	307	171	136	0	0	47	92

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

Texas 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.