EnviroNearby

Socorro County, New Mexico air quality history

Daily Air Quality Index summaries from EPA monitors in Socorro, New Mexico, 2000–2025.

100%
Good days in 2024
16
Median daily AQI, 2024
0
Days above 100 in 2024
120
Days with an AQI in 2024 (of 366)

In 2024, EPA reported a daily Air Quality Index (AQI) for Socorro, New Mexico on 120 days. 120 of those days (100%) were in the Good range, and the median daily AQI was 16. That median is lower than the typical monitored county in New Mexico (median 44 across 13 counties), and lower than the typical monitored U.S. county (41). The main pollutant was fine particles (PM2.5) on 120 days.

EPA did not report an AQI for every day of 2024 here (120 of 366 days). Figures describe monitored days only; seasonal monitoring (for example, ozone measured only in warmer months) can make a county look cleaner or dirtier than a full-year record would.

Years with fewer than 120 monitored days (2019, 2020, 2021, 2022, 2023, 2025…) 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%2000: Good 69 of 70 days2000: Moderate 1 of 70 days20002001: Good 97 of 97 days2002: Good 106 of 108 days2002: Moderate 2 of 108 days20022003: Good 102 of 102 days2004: Good 119 of 120 days2004: Moderate 1 of 120 days20042005: Good 117 of 118 days2005: Moderate 1 of 118 days2006: Good 112 of 114 days2006: Moderate 2 of 114 days20062007: Good 92 of 94 days2007: Moderate 2 of 94 days2008: Good 97 of 98 days2008: Moderate 1 of 98 days20082009: Good 113 of 113 days2010: Good 107 of 107 days20102011: Good 100 of 106 days2011: Moderate 6 of 106 days2012: Good 90 of 96 days2012: Moderate 4 of 96 days2012: Unhealthy for Sensitive Groups 2 of 96 days20122013: Good 100 of 108 days2013: Moderate 8 of 108 days2014: Good 94 of 96 days2014: Moderate 2 of 96 days20142015: Good 105 of 107 days2015: Moderate 2 of 107 days2016: Good 101 of 102 days2016: Moderate 1 of 102 days20162017: Good 115 of 117 days2017: Moderate 2 of 117 days2018: Good 107 of 112 days2018: Moderate 5 of 112 days20182019: Good 92 of 92 days2020: Good 107 of 111 days2020: Moderate 4 of 111 days20202021: Good 114 of 118 days2021: Moderate 4 of 118 days2022: Good 111 of 115 days2022: Moderate 4 of 115 days20222023: Good 117 of 118 days2023: Moderate 1 of 118 days2024: Good 120 of 120 days20242025: Good 96 of 98 days2025: Moderate 2 of 98 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 year0501002000: 90th percentile AQI 382001: 90th percentile AQI 332002: 90th percentile AQI 342003: 90th percentile AQI 352004: 90th percentile AQI 292005: 90th percentile AQI 332006: 90th percentile AQI 322007: 90th percentile AQI 292008: 90th percentile AQI 352009: 90th percentile AQI 272010: 90th percentile AQI 262011: 90th percentile AQI 432012: 90th percentile AQI 422013: 90th percentile AQI 472014: 90th percentile AQI 322015: 90th percentile AQI 312016: 90th percentile AQI 272017: 90th percentile AQI 272018: 90th percentile AQI 392019: 90th percentile AQI 262020: 90th percentile AQI 372021: 90th percentile AQI 372022: 90th percentile AQI 302023: 90th percentile AQI 302024: 90th percentile AQI 272025: 90th percentile AQI 362000: Median AQI 222001: Median AQI 182002: Median AQI 192003: Median AQI 192004: Median AQI 152005: Median AQI 142006: Median AQI 172007: Median AQI 172008: Median AQI 172009: Median AQI 172010: Median AQI 152011: Median AQI 182012: Median AQI 252013: Median AQI 192014: Median AQI 192015: Median AQI 162016: Median AQI 152017: Median AQI 132018: Median AQI 182019: Median AQI 142020: Median AQI 142021: Median AQI 172022: Median AQI 152023: Median AQI 142024: Median AQI 162025: Median AQI 1720002002200420062008201020122014201620182020202220242025
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 2024

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)120100%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2025989620000173685PM2.5
202412012000000162747PM2.5
202311811710000143051PM2.5
202211511140000153072PM2.5
202111811440000173761PM2.5
202011110740000143756PM2.5
2019929200000142641PM2.5
201811210750000183961PM2.5
201711711520000132762PM2.5
201610210110000152771PM2.5
201510710520000163162PM2.5
2014969420000193262PM2.5
201310810080000194771PM2.5
20129690420002542145PM2.5
201110610060000184372PM2.5
201010710700000152631PM2.5
200911311300000172735PM2.5
2008989710000173556PM2.5
2007949220000172976PM2.5
200611411220000173262PM2.5
200511811710000143351PM2.5
200412011910000152959PM2.5
200310210200000193546PM2.5
200210810620000193464PM2.5
2001979700000183341PM2.5
2000706910000223854PM2.5

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.

All monitored counties in New Mexico

Source: U.S. EPA AirData, “Annual AQI by County” files for 2000–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem