EnviroNearby

Hunt County, Texas air quality history

Daily Air Quality Index summaries from EPA monitors in Hunt, Texas, 2003–2025.

92%
Good days in 2025
34
Median daily AQI, 2025
1
Days above 100 in 2025
362
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Hunt, Texas on 362 days. 332 of those days (92%) were in the Good range, and the median daily AQI was 34. 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 ozone on 346 days. Across the years with fuller monitoring, the share of Good days rose: an average of 75% in 2003–2005 versus 90% in 2023–2025.

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%2003: Good 202 of 283 days2003: Moderate 73 of 283 days2003: Unhealthy for Sensitive Groups 8 of 283 days20032004: Good 304 of 366 days2004: Moderate 53 of 366 days2004: Unhealthy for Sensitive Groups 8 of 366 days2004: Unhealthy 1 of 366 days2005: Good 256 of 364 days2005: Moderate 79 of 364 days2005: Unhealthy for Sensitive Groups 29 of 364 days20052006: Good 275 of 360 days2006: Moderate 64 of 360 days2006: Unhealthy for Sensitive Groups 21 of 360 days2007: Good 319 of 365 days2007: Moderate 45 of 365 days2007: Unhealthy for Sensitive Groups 1 of 365 days20072008: Good 319 of 366 days2008: Moderate 46 of 366 days2008: Unhealthy for Sensitive Groups 1 of 366 days2009: Good 319 of 365 days2009: Moderate 46 of 365 days20092010: Good 322 of 362 days2010: Moderate 39 of 362 days2010: Unhealthy for Sensitive Groups 1 of 362 days2011: Good 280 of 365 days2011: Moderate 73 of 365 days2011: Unhealthy for Sensitive Groups 12 of 365 days20112012: Good 302 of 366 days2012: Moderate 57 of 366 days2012: Unhealthy for Sensitive Groups 6 of 366 days2012: Unhealthy 1 of 366 days2013: Good 313 of 365 days2013: Moderate 49 of 365 days2013: Unhealthy for Sensitive Groups 3 of 365 days20132014: Good 338 of 362 days2014: Moderate 24 of 362 days2015: Good 339 of 365 days2015: Moderate 26 of 365 days20152016: Good 351 of 366 days2016: Moderate 15 of 366 days2017: Good 343 of 365 days2017: Moderate 22 of 365 days20172018: Good 329 of 365 days2018: Moderate 32 of 365 days2018: Unhealthy for Sensitive Groups 3 of 365 days2018: Unhealthy 1 of 365 days2019: Good 345 of 364 days2019: Moderate 19 of 364 days20192020: Good 351 of 366 days2020: Moderate 15 of 366 days2021: Good 343 of 362 days2021: Moderate 19 of 362 days20212022: Good 330 of 358 days2022: Moderate 28 of 358 days2023: Good 314 of 359 days2023: Moderate 43 of 359 days2023: Unhealthy for Sensitive Groups 2 of 359 days20232024: Good 324 of 362 days2024: Moderate 36 of 362 days2024: Unhealthy for Sensitive Groups 2 of 362 days2025: Good 332 of 362 days2025: Moderate 29 of 362 days2025: Unhealthy for Sensitive Groups 1 of 362 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 year0501002003: 90th percentile AQI 802004: 90th percentile AQI 712005: 90th percentile AQI 932006: 90th percentile AQI 872007: 90th percentile AQI 582008: 90th percentile AQI 542009: 90th percentile AQI 512010: 90th percentile AQI 512011: 90th percentile AQI 802012: 90th percentile AQI 712013: 90th percentile AQI 612014: 90th percentile AQI 492015: 90th percentile AQI 482016: 90th percentile AQI 472017: 90th percentile AQI 472018: 90th percentile AQI 502019: 90th percentile AQI 472020: 90th percentile AQI 452021: 90th percentile AQI 462022: 90th percentile AQI 502023: 90th percentile AQI 542024: 90th percentile AQI 512025: 90th percentile AQI 502003: Median AQI 422004: Median AQI 352005: Median AQI 412006: Median AQI 412007: Median AQI 342008: Median AQI 362009: Median AQI 352010: Median AQI 362011: Median AQI 392012: Median AQI 382013: Median AQI 382014: Median AQI 352015: Median AQI 332016: Median AQI 352017: Median AQI 352018: Median AQI 322019: Median AQI 352020: Median AQI 322021: Median AQI 332022: Median AQI 362023: Median AQI 372024: Median AQI 372025: Median AQI 34200320052007200920112013201520172019202120232025
  • 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
Ozone34696%
Nitrogen dioxide (NO₂)164%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
20253623322910003450119Ozone
20243623243620003751133Ozone
20233593144320003754119Ozone
2022358330280000365097Ozone
2021362343190000334693Ozone
2020366351150000324587Ozone
2019364345190000354797Ozone
20183653293231003250154Ozone
20173653432200003547100Ozone
2016366351150000354767Ozone
2015365339260000334880Ozone
2014362338240000354980Ozone
20133653134930003861115Ozone
20123663025761003871174Ozone
201136528073120003980143Ozone
20103623223910003651126Ozone
2009365319460000355190Ozone
20083663194610003654105Ozone
20073653194510003458105Ozone
200636027564210004187147Ozone
200536425679290004193143Ozone
20043663045381003571187Ozone
20032832027380004280133Ozone

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 2003–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem