Metro area air quality · 2025

Farmington, NM

Median AQI 49 (Good). 58.2% of monitored days rated Good across this metro's EPA monitoring network.

49
Median AQI
58.2%
Good-air days
0
Unhealthy days
20%
Cleaner than US metros

Aggregated from EPA Air Quality System (2025), 273 monitored days. EPA AQS →

The verdict

The Farmington, NM metro runs good on the EPA scale, among the more polluted US metros, a median AQI of 49 with 58.2% of 273 monitored days in the Good band.

49
median AQI · Good
58.2%
days rated Good
20%
cleaner than US metros
104
worst single reading

No day crossed into the Unhealthy tier across the metro's monitors in 2025.

Insights: Farmington, NM metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 49 over 273 measured days in 2025, which corresponds to a Good band and a Moderate metro-wide health grade. The monitored-day split lands at 159 Good days (58%), 113 Moderate (41%), and 1 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 77 while the highest single-day reading hit 104 (USG). Metro residents averaged roughly 17.5 clean-air days per 30-day window across the reporting year.

Across the 2020–2025 trend window, good days shifted by -106 and the median AQI moved +4 points, which classifies the multi-year trajectory as worsening. The metro avoided any Unhealthy-tier days entirely, an outcome that typically reflects favorable wind patterns, lower industrial density, or effective regional emission controls. Metros with comparable AQI profiles include Colorado Springs, CO (58.2% good, AQI 49); Greenville-Anderson-Mauldin, SC (53.5% good, AQI 49); Hot Springs, AR (52.8% good, AQI 49).

Air Quality Summary

Median AQI

49

Good

Good Days

58.2%

159 of 273 days

Max AQI

104

USG

Health Grade

Moderate

90th pct: 77

AQI Day Breakdown (2025)

Distribution of 273 monitored days across EPA AQI categories.

Good

159

58%

Moderate

113

41%

USG

1

0%

Unhealthy

0

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Moderate

The Farmington, NM metro area's air quality is rated Moderate based on 58.2% good air days. No unhealthy air days were recorded in 2025.

Air quality is generally acceptable. Unusually sensitive people should monitor real-time conditions at AirNow.gov during high-pollution events.

How does the Farmington, NM metro compare?

How Farmington, NM compares

Good-day share worse than US avg
Farmington, NM 58.2%
Colorado Springs, CO 58.2%
US average 71.3%
Median AQI worse than US avg
Farmington, NM 49
Colorado Springs, CO 49
US average 41
Unhealthy days / yr better than US avg
Farmington, NM 0
Colorado Springs, CO 0
US average 1

5-Year Air Quality Trend

Air quality is worsening in the Farmington, NM metro. Best year: 2020 (265 good days).

Year Good Moderate Unhealthy Median AQI
2020 265 96 0 45
2021 237 120 0 46
2022 238 116 1 45
2023 249 112 0 46
2024 218 137 0 48
2025 159 113 0 49

Metros with Similar Air Quality

Metro areas across the US with a similar median AQI to Farmington, NM.

Colorado Springs, CO

AQI 49 · 58.2% good

49

Greenville-Anderson-Mauldin, SC

AQI 49 · 53.5% good

49

Hot Springs, AR

AQI 49 · 52.8% good

49

Kansas City, MO-KS

AQI 49 · 50.8% good

49

Kingsville, TX

AQI 49 · 51.7% good

49

Knoxville, TN

AQI 49 · 55.3% good

49

More Air Quality Data

Explore EPA air quality rankings and guides across U.S. metros and counties.

Cleanest Metro Areas

U.S. metros ranked by their share of Good air-quality days.

Worst Air Quality

Counties and metros with the most unhealthy air days.

All Metro Areas

Annual AQI by CBSA for every monitored U.S. metro area.

Best and Worst City Air

What drives urban air quality and how metro areas compare.

Air Quality Guides

Frequently Asked Questions

What is the air quality in the Farmington, NM metro area? ▼
The Farmington, NM metro area has a median Air Quality Index (AQI) of 49, rated "Good." 58.2% of monitored days (159 out of 273) had good air quality in 2025.
How many unhealthy air days does Farmington, NM have? ▼
In 2025, the Farmington, NM metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 104.
Is air quality in Farmington, NM getting better or worse? ▼
Air quality in the Farmington, NM metro is worsening based on 5-year trends (2020-2025). Best year: 2020 with 265 good days. Worst year: 2025 with 159 good days.
What does AQI 49 mean for health? ▼
An AQI of 49 is "Good", air quality is satisfactory and poses little or no health risk. This is the best category on the EPA's AQI scale.
What is the 90th percentile AQI for Farmington, NM? ▼
The 90th percentile AQI for the Farmington, NM metro area is 77, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 104 (USG).
How does Farmington, NM compare to other metro areas? ▼
The Farmington, NM metro has 58.2% good air days. Similar metros: Colorado Springs, CO (58.2% good), Greenville-Anderson-Mauldin, SC (53.5% good), Hot Springs, AR (52.8% good).

Data Sources

Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset, 2020–2025. See our methodology for how AQI, median, and coverage figures are computed.

Read our methodology , how this data is sourced, computed, and verified.

Source: U.S. EPA Air Quality System (AQS) Annual AQI by CBSA summary files (metro-level) · 2020–2025

Every figure on PlainAir is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.