Metro area air quality · 2025

Gainesville, FL

Median AQI 37 (Good). 88.7% of monitored days rated Good across this metro's EPA monitoring network.

37
Median AQI
88.7%
Good-air days
0
Unhealthy days
84%
Cleaner than US metros

Gainesville, FL posted a 2025 median AQI of 37 (Good) with 88.7% Good days

According to the U.S. EPA Air Quality System, the Gainesville, FL CBSA recorded a median AQI of 37 across 364 monitored days in 2025, with 88.7% 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 Gainesville, FL CBSA's 88.7% Good-day share places it cleaner than 84% of US metros in 2025.
Closest median-AQI peer
Alexandria, LA (73.7% Good, median AQI 37) is the closest nationwide median-AQI peer to Gainesville, FL.
2020–2025 Good-day shift
Gainesville, FL's Good-day share moved +13.7 points from 2020 to 2025 (median AQI -5).
Median AQI
Median AQI: 37

Aggregated from EPA Air Quality System (2025), 364 monitored days. EPA AQS →

The verdict

Gainesville, FL sits in the upper Good-day tercile among EPA CBSA metros on this site (88.7% of 364 monitored days). On the EPA scale the metro runs good, cleaner than most US metros, with a median AQI of 37 and 88.7% of 364 monitored days in the Good band.

37
median AQI · Good
88.7%
days rated Good
84%
cleaner than US metros
69
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

2024 → 2025
  • Gainesville, FL metro's Good-day share rose from 86.0% to 88.7% between the 2024 and 2025 EPA annual releases, a change of +2.8 percentage points.
  • Gainesville, FL metro's peak single-day AQI fell from 94 to 69 between the 2024 and 2025 EPA annual releases, a change of -25 points.

Compared against 349 monitored days in 2024 and 364 in 2025. These are arithmetic differences between two stored EPA annual summaries, not a cause claim or a live advisory.

National release changes Two-year CSV

Gainesville, FL sits in the upper Good-day tercile among EPA CBSA metros on this site (88.7% of 364 monitored days). Signature read: 88.7% Good-day share (high tercile vs CBSA corpus). Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 37 over 364 measured days in 2025 (Good / Good). The monitored-day split lands at 323 Good (89%), 41 Moderate (11%), and 0 Unhealthy-for-Sensitive-Groups (0%). The 90th-percentile AQI finished at 51; the highest single-day reading hit 69 (Moderate).

Across 2020–2025, Good-day share shifted +13.7 points and median AQI moved -5 (improving). No Unhealthy-tier days appear in this annual dataset. Metros with comparable AQI profiles include Alexandria, LA (73.7% good, AQI 37); Athens, TN (78.2% good, AQI 37); Bennington, VT (83.6% good, AQI 37).

Best and worst city air quality →

Air Quality Summary

Median AQI

37

Good

Good Days

88.7%

323 of 364 days

Max AQI

69

Moderate

Health Grade

Good

90th pct: 51

AQI Day Breakdown (2025)

Distribution of 364 monitored days across EPA AQI categories.

Good

323

89%

Moderate

41

11%

USG

0

0%

Unhealthy

0

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Good

The Gainesville, FL metro area's air quality is rated Good based on 88.7% 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 Gainesville, FL metro compare?

How Gainesville, FL compares

Good-day share better than typical
Gainesville, FL 88.7%
Alexandria, LA 73.7%
Typical US metro 70.6%
Median AQI better than typical
Gainesville, FL 37
Alexandria, LA 37
Typical US metro 41
Unhealthy days / yr better than typical
Gainesville, FL 0
Alexandria, LA 0
Typical US metro 1

5-Year Air Quality Trend

Air quality is improving in the Gainesville, FL metro. Highest Good-day share: 2025 (88.7%, 323 of 364 monitored days).

Year Good Moderate Unhealthy Median AQI
2020 274 91 0 42
2021 308 56 0 39
2022 292 70 0 41
2023 270 94 0 40
2024 300 49 0 38
2025 323 41 0 37

Metros with a similar median AQI

CBSA peers nationwide whose annual median AQI sits near Gainesville, FL (37).

Alexandria, LA

Median AQI 37 · 73.7% Good-day share

37

Athens, TN

Median AQI 37 · 78.2% Good-day share

37

Bennington, VT

Median AQI 37 · 83.6% Good-day share

37

Blacksburg-Christiansburg-Radford, VA

Median AQI 37 · 94.4% Good-day share

37

Cadillac, MI

Median AQI 37 · 86.0% Good-day share

37

Chambersburg-Waynesboro, PA

Median AQI 37 · 91.5% Good-day share

37

Metros with similar unhealthy-day exposure

A second relationship type: metros whose unhealthy-or-worse day count is closest to Gainesville, FL's 0 (independent of median AQI).

Aberdeen, SD

0 unhealthy-or-worse days · median AQI 27

27

Aberdeen, WA

0 unhealthy-or-worse days · median AQI 22

22

Adrian, MI

0 unhealthy-or-worse days · median AQI 41

41

Akron, OH

0 unhealthy-or-worse days · median AQI 45

45

Albany, GA

0 unhealthy-or-worse days · median AQI 46

46

Albany, OR

0 unhealthy-or-worse days · median AQI 27

27

Frequently Asked Questions

How many unhealthy air days does Gainesville, FL have? ▼
In 2025, the Gainesville, FL metro area recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 69.
What is the air quality in the Gainesville, FL metro area? ▼
The Gainesville, FL metro area has a median Air Quality Index (AQI) of 37, rated "Good." 88.7% of monitored days (323 out of 364) had good air quality in 2025.
Is air quality in Gainesville, FL getting better or worse? ▼
Air quality in the Gainesville, FL metro is improving across floor-qualifying years (2020-2025); years with fewer than 100 monitored days are excluded from that direction. Highest qualifying Good-day share: 2025 at 88.7% (323 of 364 days). Lowest qualifying Good-day share: 2023 at 74.2% (270 of 364 days).
What does AQI 37 mean for health? ▼
An AQI of 37 is "Good", air quality is satisfactory and poses little or no health risk. This is the best category on the EPA's AQI scale.
How does Gainesville, FL compare to other metro areas? ▼
The Gainesville, FL metro has 88.7% good air days. Similar metros: Alexandria, LA (73.7% good), Athens, TN (78.2% good), Bennington, VT (83.6% good).
What is the 90th percentile AQI for Gainesville, FL? ▼
The 90th percentile AQI for the Gainesville, FL metro area is 51, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 69 (Moderate).

Data Sources

Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset for Gainesville, FL, 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, Gainesville, FL · 2020–2025