Bad Air Days in Culberson County, Texas

Not enough data

EPA monitors in Culberson County ran on too few days between 2016 and 2025 to give a fair yearly count (about 39% of days covered). Neighbouring counties below are a better guide.

What to buy, and what not to

EPA monitors here ran too few days to give a fair yearly count. Use AirNow for today's air.

Better or worse than it was

The worst recent year was 2020, with 7 bad days on 201 monitored days.

Date	AQI	Main pollutant
2025-04-01	159	PM2.5
2025-03-14	133	PM2.5
2021-08-04	126	Ozone
2022-06-29	119	Ozone
2022-07-08	119	Ozone

An ordinary day in Culberson

Across 1,423 monitored days from 2016 to 2025, the air in Culberson County rated Good on 80% of them, more often than the 72% typical of monitored counties, and Moderate on 19%. The median day sat at AQI 34; one day in ten went above 60.

The pollutant setting the AQI on an ordinary day here:

fine particles (PM2.5)69%981 days
ozone31%442 days

Year by year

Year	Days monitored	Good	Moderate	Over 100	Over 150	Median AQI	Highest AQI
2025*	88	67	19	2	1	32	159
2024	111	99	12	0	0	26	88
2023	107	101	6	0	0	20	89
2022	175	111	60	4	0	41	119
2021	221	170	47	4	0	43	126
2020	201	125	69	7	0	46	112
2019	176	153	21	2	0	36	108
2018	115	89	26	0	0	31	81
2017	116	109	5	2	0	22	114
2016	113	111	2	0	0	19	53
2015	113	109	4	0	0	21	66
2014	107	93	14	0	0	26	72
2013	101	85	14	2	0	28	120
2012	118	114	3	1	0	27	136
2011	111	92	17	2	0	28	119
2010	113	108	5	0	0	18	72

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

Elsewhere in Texas

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, and on why a purifier does not touch ozone in smoke vs ozone.