Metro area air quality · 2025

Killeen-Temple, TX

Median AQI 47 (Good). 61.3% of monitored days rated Good across this metro's EPA monitoring network.

47
Median AQI
61.3%
Good-air days
0
Unhealthy days
26%
Cleaner than US metros

Aggregated from EPA Air Quality System (2025), 243 monitored days. EPA AQS →

The verdict

The Killeen-Temple, TX metro runs good on the EPA scale, more polluted than the median US metro, a median AQI of 47 with 61.3% of 243 monitored days in the Good band.

47
median AQI · Good
61.3%
days rated Good
26%
cleaner than US metros
140
worst single reading

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

Insights: Killeen-Temple, TX metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 47 over 243 measured days in 2025, which corresponds to a Good band and a Moderate metro-wide health grade. The monitored-day split lands at 149 Good days (61%), 90 Moderate (37%), and 4 Unhealthy-for-Sensitive-Groups (2%). The 90th-percentile AQI finished at 65 while the highest single-day reading hit 140 (USG). Metro residents averaged roughly 18.4 clean-air days per 30-day window across the reporting year.

Across the 2020–2025 trend window, good days shifted by -87 and the median AQI moved +3 points, which classifies the multi-year trajectory as stable. 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 Ardmore, OK (65.3% good, AQI 47); Baltimore-Columbia-Towson, MD (62.2% good, AQI 47); Boise City, ID (64.7% good, AQI 47).

Air Quality Summary

Median AQI

47

Good

Good Days

61.3%

149 of 243 days

Max AQI

140

USG

Health Grade

Moderate

90th pct: 65

AQI Day Breakdown (2025)

Distribution of 243 monitored days across EPA AQI categories.

Good

149

61%

Moderate

90

37%

USG

4

2%

Unhealthy

0

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Moderate

The Killeen-Temple, TX metro area's air quality is rated Moderate based on 61.3% 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 Killeen-Temple, TX metro compare?

How Killeen-Temple, TX compares

Good-day share worse than US avg
Killeen-Temple, TX 61.3%
Ardmore, OK 65.3%
US average 71.3%
Median AQI worse than US avg
Killeen-Temple, TX 47
Ardmore, OK 47
US average 41
Unhealthy days / yr better than US avg
Killeen-Temple, TX 0
Ardmore, OK 2
US average 1

5-Year Air Quality Trend

Air quality is stable in the Killeen-Temple, TX metro. Best year: 2022 (241 good days).

Year Good Moderate Unhealthy Median AQI
2020 236 129 0 44
2021 240 122 0 44
2022 241 121 0 46
2023 231 128 0 44
2024 226 135 0 46
2025 149 90 0 47

Metros with Similar Air Quality

Metro areas across the US with a similar median AQI to Killeen-Temple, TX.

Ardmore, OK

AQI 47 · 65.3% good

47

Baltimore-Columbia-Towson, MD

AQI 47 · 62.2% good

47

Boise City, ID

AQI 47 · 64.7% good

47

Cheyenne, WY

AQI 47 · 69.8% good

47

Chico, CA

AQI 47 · 66.1% good

47

Columbus, GA-AL

AQI 47 · 58.8% good

47

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 Killeen-Temple, TX metro area? ▼
The Killeen-Temple, TX metro area has a median Air Quality Index (AQI) of 47, rated "Good." 61.3% of monitored days (149 out of 243) had good air quality in 2025.
How many unhealthy air days does Killeen-Temple, TX have? ▼
In 2025, the Killeen-Temple, TX metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 140.
Is air quality in Killeen-Temple, TX getting better or worse? ▼
Air quality in the Killeen-Temple, TX metro is stable based on 5-year trends (2020-2025). Best year: 2022 with 241 good days. Worst year: 2025 with 149 good days.
What does AQI 47 mean for health? ▼
An AQI of 47 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 Killeen-Temple, TX? ▼
The 90th percentile AQI for the Killeen-Temple, TX metro area is 65, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 140 (USG).
How does Killeen-Temple, TX compare to other metro areas? ▼
The Killeen-Temple, TX metro has 61.3% good air days. Similar metros: Ardmore, OK (65.3% good), Baltimore-Columbia-Towson, MD (62.2% good), Boise City, ID (64.7% 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.