SmogRank / Episodes / United States
Texas, United States, February 2023
For 2 days, from 26 to 27 February 2023, 14 cities in the United States had PM2.5 at least twice their usual for the time of year. The worst reading was Lubbock, Texas, United States: 69.3 µg/m³ on 26 February, about 14× its usual 3.6.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 14 in 1 country
Days 2 26 to 27 February 2023
Worst day 27 February 9 cities counted
Furthest above usual 14× Lubbock
Day by day
Play 27 February 9 cities at twice their usual or more
Belton Austin College Station Live Oak Odessa Missouri City La Porte Hobbs Houston Baytown Pasadena Deer Park Conroe Mission Bend Oklahoma City Edmond Saginaw Fort Worth Lawton Dallas Amarillo Lubbock 23 Feb 24 25 26 27 28 1 Mar 2 Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking.
How it spread
Lubbock Lubbock, 23 February: 2.6 µg/m³, 0.5× usual Lubbock, 24 February: 4.6 µg/m³, 0.9× usual Lubbock, 25 February: 5.8 µg/m³, 1.2× usual Lubbock, 26 February: 69.3 µg/m³, 14× usual Lubbock, 27 February: 27.7 µg/m³, 5.5× usual Lubbock, 28 February: 14.2 µg/m³, 2.8× usual Lubbock, 1 March: 2.0 µg/m³, 0.4× usual Lubbock, 2 March: 3.6 µg/m³, 0.7× usual Amarillo Amarillo, 23 February: 3.3 µg/m³, 0.7× usual Amarillo, 24 February: 5.0 µg/m³, 1.0× usual Amarillo, 25 February: 10.4 µg/m³, 2.1× usual Amarillo, 26 February: 36.0 µg/m³, 7.2× usual Amarillo, 27 February: 4.2 µg/m³, 0.8× usual Amarillo, 28 February: 3.8 µg/m³, 0.8× usual Amarillo, 1 March: 4.2 µg/m³, 0.8× usual Amarillo, 2 March: 5.8 µg/m³, 1.2× usual Lawton Lawton, 23 February: 5.5 µg/m³, 0.9× usual Lawton, 24 February: 8.7 µg/m³, 1.5× usual Lawton, 25 February: 19.4 µg/m³, 3.3× usual Lawton, 26 February: 34.0 µg/m³, 5.8× usual Lawton, 27 February: 11.3 µg/m³, 1.9× usual Lawton, 28 February: 6.9 µg/m³, 1.2× usual Lawton, 1 March: 5.5 µg/m³, 0.9× usual Lawton, 2 March: 13.7 µg/m³, 2.3× usual Oklahoma City Oklahoma City, 23 February: 5.5 µg/m³, 0.7× usual Oklahoma City, 24 February: 9.8 µg/m³, 1.3× usual Oklahoma City, 25 February: 21.1 µg/m³, 2.7× usual Oklahoma City, 26 February: 28.0 µg/m³, 3.6× usual Oklahoma City, 27 February: 12.9 µg/m³, 1.7× usual Oklahoma City, 28 February: 5.7 µg/m³, 0.7× usual Oklahoma City, 1 March: 10.5 µg/m³, 1.3× usual Oklahoma City, 2 March: 13.2 µg/m³, 1.7× usual Saginaw Saginaw, 23 February: 3.9 µg/m³, 0.5× usual Saginaw, 24 February: 5.3 µg/m³, 0.7× usual Saginaw, 25 February: 13.8 µg/m³, 1.9× usual Saginaw, 26 February: 26.2 µg/m³, 3.7× usual Saginaw, 27 February: 32.9 µg/m³, 4.6× usual Saginaw, 28 February: 5.1 µg/m³, 0.7× usual Saginaw, 1 March: 11.7 µg/m³, 1.6× usual Saginaw, 2 March: 14.9 µg/m³, 2.1× usual Edmond Edmond, 23 February: 5.5 µg/m³, 0.8× usual Edmond, 24 February: 8.8 µg/m³, 1.3× usual Edmond, 25 February: 17.5 µg/m³, 2.5× usual Edmond, 26 February: 26.2 µg/m³, 3.8× usual Edmond, 27 February: 13.3 µg/m³, 1.9× usual Edmond, 28 February: 5.3 µg/m³, 0.8× usual Edmond, 1 March: 8.1 µg/m³, 1.2× usual Edmond, 2 March: no reading Fort Worth Fort Worth, 23 February: 6.6 µg/m³, 0.9× usual Fort Worth, 24 February: 6.6 µg/m³, 0.9× usual Fort Worth, 25 February: 15.6 µg/m³, 2.1× usual Fort Worth, 26 February: 25.2 µg/m³, 3.4× usual Fort Worth, 27 February: 40.4 µg/m³, 5.4× usual Fort Worth, 28 February: 6.5 µg/m³, 0.9× usual Fort Worth, 1 March: 13.5 µg/m³, 1.8× usual Fort Worth, 2 March: 16.9 µg/m³, 2.3× usual Dallas Dallas, 23 February: 5.1 µg/m³, 0.7× usual Dallas, 24 February: 6.3 µg/m³, 0.9× usual Dallas, 25 February: 14.6 µg/m³, 2.0× usual Dallas, 26 February: 18.1 µg/m³, 2.5× usual Dallas, 27 February: 44.6 µg/m³, 6.2× usual Dallas, 28 February: 6.7 µg/m³, 0.9× usual Dallas, 1 March: 10.7 µg/m³, 1.5× usual Dallas, 2 March: 13.1 µg/m³, 1.8× usual Conroe Conroe, 23 February: 22.9 µg/m³, 2.5× usual Conroe, 24 February: 12.0 µg/m³, 1.3× usual Conroe, 25 February: 15.4 µg/m³, 1.7× usual Conroe, 26 February: 12.1 µg/m³, 1.3× usual Conroe, 27 February: 29.5 µg/m³, 3.3× usual Conroe, 28 February: 15.8 µg/m³, 1.8× usual Conroe, 1 March: 13.2 µg/m³, 1.5× usual Conroe, 2 March: 17.0 µg/m³, 1.9× usual Baytown Baytown, 23 February: 18.0 µg/m³, 1.8× usual Baytown, 24 February: 12.3 µg/m³, 1.3× usual Baytown, 25 February: 13.3 µg/m³, 1.4× usual Baytown, 26 February: 13.6 µg/m³, 1.4× usual Baytown, 27 February: 28.9 µg/m³, 2.9× usual Baytown, 28 February: 17.3 µg/m³, 1.8× usual Baytown, 1 March: 16.3 µg/m³, 1.7× usual Baytown, 2 March: 17.7 µg/m³, 1.8× usual Pasadena Pasadena, 23 February: 18.3 µg/m³, 2.0× usual Pasadena, 24 February: 12.8 µg/m³, 1.4× usual Pasadena, 25 February: 15.4 µg/m³, 1.7× usual Pasadena, 26 February: 11.7 µg/m³, 1.3× usual Pasadena, 27 February: 28.5 µg/m³, 3.1× usual Pasadena, 28 February: 17.2 µg/m³, 1.9× usual Pasadena, 1 March: 13.6 µg/m³, 1.5× usual Pasadena, 2 March: 15.8 µg/m³, 1.7× usual Houston Houston, 23 February: 20.4 µg/m³, 2.0× usual Houston, 24 February: 16.0 µg/m³, 1.5× usual Houston, 25 February: 17.0 µg/m³, 1.6× usual Houston, 26 February: 13.4 µg/m³, 1.3× usual Houston, 27 February: 28.5 µg/m³, 2.7× usual Houston, 28 February: 20.0 µg/m³, 1.9× usual Houston, 1 March: 15.6 µg/m³, 1.5× usual Houston, 2 March: 17.8 µg/m³, 1.7× usual Mission Bend Mission Bend, 23 February: 20.1 µg/m³, 2.5× usual Mission Bend, 24 February: 11.9 µg/m³, 1.5× usual Mission Bend, 25 February: 15.7 µg/m³, 2.0× usual Mission Bend, 26 February: 13.2 µg/m³, 1.7× usual Mission Bend, 27 February: 27.8 µg/m³, 3.5× usual Mission Bend, 28 February: 17.1 µg/m³, 2.2× usual Mission Bend, 1 March: 14.2 µg/m³, 1.8× usual Mission Bend, 2 March: 17.7 µg/m³, 2.2× usual Deer Park Deer Park, 23 February: 16.6 µg/m³, 1.9× usual Deer Park, 24 February: 10.9 µg/m³, 1.3× usual Deer Park, 25 February: 11.1 µg/m³, 1.3× usual Deer Park, 26 February: 11.4 µg/m³, 1.3× usual Deer Park, 27 February: 27.7 µg/m³, 3.2× usual Deer Park, 28 February: 14.6 µg/m³, 1.7× usual Deer Park, 1 March: 13.0 µg/m³, 1.5× usual Deer Park, 2 March: 12.5 µg/m³, 1.4× usual 23 Feb 24 25 26 27 28 1 Mar 2 Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more. Good 0–50
Moderate 51–100
Sensitive groups 101–150
Unhealthy 151–200
Very unhealthy 201–300
Hazardous 301+
Every city it reached
City Days Highest Usual Above usual
Lubbock Texas, United States 1 26 February 3.6 14× Amarillo Texas, United States 1 26 February 4.4 7.2× Dallas Texas, United States 1 27 February 7.2 6.2× Lawton Oklahoma, United States 1 26 February 5.9 5.8× Fort Worth Texas, United States 2 27 February 7.5 5.4× Saginaw Texas, United States 2 27 February 7.1 4.6× Edmond Oklahoma, United States 1 26 February 6.9 3.8× Oklahoma City Oklahoma, United States 1 26 February 7.8 3.6× Mission Bend Texas, United States 1 27 February 7.9 3.5× Conroe Texas, United States 1 27 February 9.0 3.3× Deer Park Texas, United States 1 27 February 8.7 3.2× Pasadena Texas, United States 1 27 February 9.1 3.1× Baytown Texas, United States 1 27 February 9.8 2.9× Houston Texas, United States 1 27 February 10.4 2.7×
Daily means in µg/m³. Usual: the city's median for this time of year (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that.
Against other episodes in the United States
Number 28 of 41 episodes in the United States since our records began, by cities reached.
North-eastern United States and Canada, June and July 2023 279 North-eastern United States and Canada, May and June 2023 260 North-eastern United States and Canada, July 2023 241 North-eastern United States and Canada, June 2023 161 North-western United States and Canada, August 2023 110 North-eastern United States and Canada, July 2023 75 Western United States, September 2023 61 South-eastern United States, October 2023 47 North-eastern United States, July 2023 46 North-western United States and Canada, May 2023 42 Western United States, December 2023 32 Northern United States, January 2023 32 Texas, United States, February 2023 14 Bars: cities reached; colour: the level of the episode's highest daily reading. All 41 .
Use this page SmogRank, Texas, United States, February 2023: 14 cities with PM2.5 at twice their usual or more, 26 to 27 February 2023, smogrank.com/episodes/2023-02-texas-united-states (accessed 2 October 2026).
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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms .
An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes . Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source.
