Metro area air quality · 2025
Greensboro-High Point, NC
Median AQI 42 (Good). 74.5% of monitored days rated Good across this metro's EPA monitoring network.
- 42
- Median AQI
- 74.5%
- Good-air days
- 0
- Unhealthy days
- 56%
- Cleaner than US metros
Greensboro-High Point, NC posted a 2025 median AQI of 42 (Good) with 74.5% Good days
According to the U.S. EPA Air Quality System, the Greensboro-High Point, NC CBSA recorded a median AQI of 42 across 365 monitored days in 2025, with 74.5% rated Good and 0 unhealthy or worse. This is an annual metro comparison, not a live advisory.
Data source EPA Air Quality System (AQS)
- Cleaner than US metros
- The Greensboro-High Point, NC CBSA's 74.5% Good-day share places it cleaner than 56% of US metros in 2025.
- Closest median-AQI peer
- Allentown-Bethlehem-Easton, PA-NJ (66.8% Good, median AQI 42) is the closest nationwide median-AQI peer to Greensboro-High Point, NC.
- 2020–2025 Good-day shift
- Greensboro-High Point, NC's Good-day share moved -4.2 points from 2020 to 2025 (median AQI +2).
- Median AQI
- Median AQI: 42
Aggregated from EPA Air Quality System (2025), 365 monitored days. EPA AQS →
The verdict
Greensboro-High Point, NC's peak reading 77 stays in the lower max-AQI tercile on this extract. On the EPA scale the metro runs good, cleaner than the median US metro, with a median AQI of 42 and 74.5% of 365 monitored days in the Good band.
- 42
- median AQI · Good
- 74.5%
- days rated Good
- 56%
- cleaner than US metros
- 77
- worst single reading
No day crossed into the Unhealthy tier across the metro's monitors in 2025.
Annual release change
What changed in the 2025 EPA annual release
- Greensboro-High Point, NC metro's Good-day share rose from 66.6% to 74.5% between the 2024 and 2025 EPA annual releases, a change of +7.9 percentage points.
- Greensboro-High Point, NC metro's peak single-day AQI fell from 122 to 77 between the 2024 and 2025 EPA annual releases, a change of -45 points.
- Greensboro-High Point, NC metro's median AQI fell from 45 to 42 between the 2024 and 2025 EPA annual releases, a change of -3 points.
Greensboro-High Point, NC's peak reading 77 stays in the lower max-AQI tercile on this extract. Signature read: peak AQI 77 (low tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 42 over 365 measured days in 2025 (Good / Moderate). The monitored-day split lands at 272 Good (75%), 93 Moderate (25%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 56; the highest single-day reading hit 77 (Moderate).
Across 2020–2025, Good-day share shifted -4.2 points and median AQI moved +2 (worsening). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Allentown-Bethlehem-Easton, PA-NJ (66.8% good, AQI 42); Amarillo, TX (78.4% good, AQI 42); Carson City, NV (86.2% good, AQI 42).
Air Quality Summary
Median AQI
42
Good
Good Days
74.5%
272 of 365 days
Max AQI
77
Moderate
Health Grade
Moderate
90th pct: 56
AQI Day Breakdown (2025)
Distribution of 365 monitored days across EPA AQI categories.
Good
272
75%
Moderate
93
25%
USG
0
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Health Impact Assessment
The Greensboro-High Point, NC metro area's air quality is rated Moderate based on 74.5% 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 Greensboro-High Point, NC metro compare?
How Greensboro-High Point, NC compares
5-Year Air Quality Trend
Air quality is worsening in the Greensboro-High Point, NC metro. Highest Good-day share: 2020 (78.7%, 288 of 366 monitored days).
| Year | Good | Moderate | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|
| 2020 | 288 | 78 | 0 | 40 | 88 |
| 2021 | 241 | 124 | 0 | 44 | 100 |
| 2022 | 222 | 143 | 0 | 47 | 84 |
| 2023 | 183 | 178 | 0 | 50 | 131 |
| 2024 | 243 | 122 | 0 | 45 | 122 |
| 2025 | 272 | 93 | 0 | 42 | 77 |
Metros with a similar median AQI
CBSA peers nationwide whose annual median AQI sits near Greensboro-High Point, NC (42).
Allentown-Bethlehem-Easton, PA-NJ
Median AQI 42 · 66.8% Good-day share
Amarillo, TX
Median AQI 42 · 78.4% Good-day share
Carson City, NV
Median AQI 42 · 86.2% Good-day share
Casper, WY
Median AQI 42 · 86.3% Good-day share
Clarksville, TN-KY
Median AQI 42 · 72.0% Good-day share
Daphne-Fairhope-Foley, AL
Median AQI 42 · 75.5% Good-day share
Metros with similar unhealthy-day exposure
A second relationship type: metros whose unhealthy-or-worse day count is closest to Greensboro-High Point, NC's 0 (independent of median AQI).
Aberdeen, SD
0 unhealthy-or-worse days · median AQI 27
Aberdeen, WA
0 unhealthy-or-worse days · median AQI 22
Adrian, MI
0 unhealthy-or-worse days · median AQI 41
Akron, OH
0 unhealthy-or-worse days · median AQI 45
Albany, GA
0 unhealthy-or-worse days · median AQI 46
Albany, OR
0 unhealthy-or-worse days · median AQI 27
Frequently Asked Questions
What is the 90th percentile AQI for Greensboro-High Point, NC? ▼
How many unhealthy air days does Greensboro-High Point, NC have? ▼
What is the air quality in the Greensboro-High Point, NC metro area? ▼
Is air quality in Greensboro-High Point, NC getting better or worse? ▼
What does AQI 42 mean for health? ▼
How does Greensboro-High Point, NC compare to other metro areas? ▼
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset for Greensboro-High Point, NC, 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, Greensboro-High Point, NC · 2020–2025