EnviroNearby

Potter County, Texas air quality history

Daily Air Quality Index summaries from EPA monitors in Potter, Texas, 1980–2025.

94%
Good days in 2025
16
Median daily AQI, 2025
0
Days above 100 in 2025
320
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Potter, Texas on 320 days. 301 of those days (94%) were in the Good range, and the median daily AQI was 16. That median is lower than the typical monitored county in Texas (median 43.5 across 44 counties), and lower than the typical monitored U.S. county (40). The main pollutant was fine particles (PM2.5) on 320 days. Across the years with fuller monitoring, the share of Good days rose: an average of 86% in 2002–2004 versus 90% in 2023–2025.

Years with fewer than 120 monitored days (1993, 1994, 1995, 1996, 2000, 2001…) are shown in the table but left out of comparisons and trend statements.

How the days broke down each year

Each bar is one year. The colored segments show the share of monitored days that fell in each AQI category.

Share of monitored days in each AQI category, by year0%25%50%75%100%1980: Good 93 of 113 days1980: Moderate 16 of 113 days1980: Unhealthy for Sensitive Groups 4 of 113 days19801985: Good 37 of 40 days1985: Moderate 3 of 40 days1986: Good 52 of 53 days1986: Moderate 1 of 53 days1987: Good 46 of 46 days1988: Good 7 of 8 days1988: Moderate 1 of 8 days1990: Good 13 of 13 days19901991: Good 50 of 51 days1991: Moderate 1 of 51 days1992: Good 53 of 53 days1993: Good 61 of 61 days1994: Good 57 of 58 days1994: Moderate 1 of 58 days1995: Good 53 of 53 days19951996: Good 57 of 57 days2000: Good 40 of 57 days2000: Moderate 17 of 57 days2001: Good 77 of 97 days2001: Moderate 20 of 97 days2002: Good 120 of 131 days2002: Moderate 11 of 131 days2003: Good 111 of 136 days2003: Moderate 25 of 136 days20032004: Good 106 of 125 days2004: Moderate 19 of 125 days2005: Good 284 of 363 days2005: Moderate 79 of 363 days2006: Good 296 of 365 days2006: Moderate 69 of 365 days2007: Good 301 of 360 days2007: Moderate 59 of 360 days2008: Good 294 of 364 days2008: Moderate 70 of 364 days20082009: Good 319 of 363 days2009: Moderate 44 of 363 days2010: Good 321 of 360 days2010: Moderate 39 of 360 days2011: Good 241 of 311 days2011: Moderate 70 of 311 days2012: Good 286 of 362 days2012: Moderate 76 of 362 days2013: Good 308 of 349 days2013: Moderate 41 of 349 days20132014: Good 300 of 361 days2014: Moderate 60 of 361 days2014: Unhealthy for Sensitive Groups 1 of 361 days2015: Good 315 of 361 days2015: Moderate 45 of 361 days2015: Unhealthy for Sensitive Groups 1 of 361 days2016: Good 345 of 361 days2016: Moderate 16 of 361 days2017: Good 318 of 345 days2017: Moderate 27 of 345 days2018: Good 316 of 353 days2018: Moderate 36 of 353 days2018: Unhealthy for Sensitive Groups 1 of 353 days20182019: Good 304 of 340 days2019: Moderate 36 of 340 days2020: Good 307 of 341 days2020: Moderate 34 of 341 days2021: Good 293 of 354 days2021: Moderate 61 of 354 days2022: Good 312 of 359 days2022: Moderate 46 of 359 days2022: Unhealthy for Sensitive Groups 1 of 359 days2023: Good 318 of 360 days2023: Moderate 40 of 360 days2023: Unhealthy for Sensitive Groups 2 of 360 days20232024: Good 294 of 336 days2024: Moderate 41 of 336 days2024: Unhealthy for Sensitive Groups 1 of 336 days2025: Good 301 of 320 days2025: Moderate 19 of 320 days2025
  • Good
  • Moderate
  • Unhealthy for Sensitive Groups
  • Unhealthy
  • Very Unhealthy
  • Hazardous

Typical and high-end AQI over time

The median is the middle day of the year. The 90th percentile is the level that only the highest 10% of days exceeded.

Median and 90th-percentile daily AQI, by year0501001980: 90th percentile AQI 771985: 90th percentile AQI 501986: 90th percentile AQI 311987: 90th percentile AQI 301988: 90th percentile AQI 541990: 90th percentile AQI 241991: 90th percentile AQI 291992: 90th percentile AQI 221993: 90th percentile AQI 221994: 90th percentile AQI 271995: 90th percentile AQI 251996: 90th percentile AQI 302000: 90th percentile AQI 552001: 90th percentile AQI 532002: 90th percentile AQI 482003: 90th percentile AQI 552004: 90th percentile AQI 522005: 90th percentile AQI 552006: 90th percentile AQI 542007: 90th percentile AQI 522008: 90th percentile AQI 552009: 90th percentile AQI 522010: 90th percentile AQI 512011: 90th percentile AQI 592012: 90th percentile AQI 542013: 90th percentile AQI 512014: 90th percentile AQI 542015: 90th percentile AQI 522016: 90th percentile AQI 442017: 90th percentile AQI 472018: 90th percentile AQI 512019: 90th percentile AQI 512020: 90th percentile AQI 502021: 90th percentile AQI 542022: 90th percentile AQI 532023: 90th percentile AQI 522024: 90th percentile AQI 522025: 90th percentile AQI 411980: Median AQI 381985: Median AQI 311986: Median AQI 211987: Median AQI 171988: Median AQI 281990: Median AQI 141991: Median AQI 181992: Median AQI 151993: Median AQI 141994: Median AQI 161995: Median AQI 141996: Median AQI 152000: Median AQI 352001: Median AQI 372002: Median AQI 282003: Median AQI 332004: Median AQI 322005: Median AQI 342006: Median AQI 342007: Median AQI 322008: Median AQI 332009: Median AQI 312010: Median AQI 312011: Median AQI 342012: Median AQI 362013: Median AQI 292014: Median AQI 312015: Median AQI 292016: Median AQI 282017: Median AQI 282018: Median AQI 302019: Median AQI 252020: Median AQI 262021: Median AQI 312022: Median AQI 312023: Median AQI 262024: Median AQI 292025: Median AQI 16198019901995200320082013201820232025
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 2025

On each monitored day, the AQI reflects whichever measured pollutant had the highest index. This counts how many days each pollutant set the AQI. A pollutant that was not measured here cannot appear.

PollutantDays as main pollutantShare of monitored days
Fine particles (PM2.5)320100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2025320301190000164185PM2.5
20243362944110002952138PM2.5
20233603184020002652125PM2.5
20223593124610003153108PM2.5
2021354293610000315483PM2.5
2020341307340000265085PM2.5
2019340304360000255165PM2.5
20183533163610003051134PM2.5
2017345318270000284769PM2.5
2016361345160000284458PM2.5
20153613154510002952128PM2.5
20143613006010003154120PM2.5
2013349308410000295176PM2.5
2012362286760000365473PM2.5
2011311241700000345989PM2.5
2010360321390000315165PM2.5
2009363319440000315263PM2.5
2008364294700000335589PM2.5
2007360301590000325270PM2.5
2006365296690000345464PM2.5
2005363284790000345575PM2.5
2004125106190000325268PM2.5
2003136111250000335574PM2.5
2002131120110000284878PM2.5
20019777200000375374PM2.5
20005740170000355568PM2.5
1996575700000153039PM10
1995535300000142534PM10
1994585710000162753PM10
1993616100000142231PM10
1992535300000152230PM10
1991515010000182978PM10
1990131300000142428PM10
19888710000285454PM10
1987464600000173039PM10
1986535210000213157PM10
1985403730000315059PM10
1980113931640003877112Ozone

What this data can and can’t tell you

It is a county-level summary. EPA reports one AQI per day for the county, based on the monitors operating there. Air at a particular street, school or home can differ, especially near roads, industry or wildfire smoke.

It is not a health assessment. The AQI is EPA’s scale for communicating daily air quality. A county’s history can’t tell you what the health risk is for any particular person. For daily conditions and health guidance, see AirNow.

Rules change over time. EPA has revised AQI breakpoints, most recently for fine particles in 2024, so some year-to-year change can reflect the scale rather than the air.

Counties in Texas with a similar median AQI in 2025

All monitored counties in Texas

Source: U.S. EPA AirData, “Annual AQI by County” files for 1980–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem