Florida · County air quality · 2025

Holmes County, Florida

Median AQI 46 (Good). 60.0% of monitored days rated Good, direct from EPA Air Quality System stations.

46
Median AQI
60.0%
Good-air days
0
Unhealthy days
15%
Cleaner than US counties

Holmes County's 2025 annual median AQI is 46 (Good), with 60.0% Good days

According to the U.S. EPA Air Quality System, Holmes County, Florida posted a 2025 median AQI of 46 (Good) across 365 monitored days, with 60.0% rated Good and 0 unhealthy or worse. This is an annual comparison, not today's advisory.

Data source EPA Air Quality System (AQS)

Cleaner than US
Holmes County's 60.0% Good-day share places it cleaner than 15% of US counties in 2025.
Closest median-AQI peer
Beaver County (55.6% Good, median AQI 46) is the closest nationwide median-AQI peer to Holmes County.
2020–2025 trend
Holmes County's floor-qualifying Good-day share is stable from 2020 to 2025 (60.9% → 60.0%).
Median AQI
Median AQI: 46

According to the 2025 EPA AQS county release on PlainAirData, Holmes County, Florida ranks #787 of 951 by median AQI (46) and #807 by good-day share (60.0%). Ponce County, Puerto Rico is #1 of 951 by median AQI (3, 91.4% Good days) at good-day-share #159 ≠ largest of 7 at 100.0% Good days #1 by good-day share (100.0%, median AQI 9) at median-AQI #7.

Data updated August 2026

Holmes County AQI category distribution Stacked-segment bar showing the share of monitored days that fell in each EPA AQI category, Good, Moderate, USG, Unhealthy, Very Unhealthy, Hazardous, with median AQI marker. AQI category distribution 365 monitored days G M Median AQI 46 0 50 100 150 200 300 500 Holmes County
  • Good · 219 d · 60.0%
  • Moderate · 146 d · 40.0%

How did Holmes County's air break down in 2025?

Across 365 monitored days, 219 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 79 (Moderate).

EPA AQS →
Holmes County, Good days share 60.0%
National avg

Share of monitored days at AQI 0-50 (Good band).

Holmes County, Unhealthy-or-worse share 0.0%
National avg

Share of monitored days above AQI 150 (Unhealthy or worse). Bar maxes at 10% (worst-county ceiling).

Where Holmes County sits nationally

COUNT-derived placement among 951 US counties with at least 100 monitored days in 2025. Holmes County's Good-day share is 60.0% - cleaner than 15% of that comparison set.

Holmes County Good-day share vs. every US county

Share of monitored days in the Good band (AQI 0–50) - EPA AQS annual release

60.0% 15th percentile higher than 15% of 951 US counties

0.0%–5.0%: 0 US counties (0%). Below this entry. 5.0%–10.0%: 1 US counties (0%). Below this entry. 10.0%–15.0%: 4 US counties (0%). Below this entry. 15.0%–20.0%: 4 US counties (0%). Below this entry. 20.0%–25.0%: 1 US counties (0%). Below this entry. 25.0%–30.0%: 5 US counties (1%). Below this entry. 30.0%–35.0%: 9 US counties (1%). Below this entry. 35.0%–40.0%: 4 US counties (0%). Below this entry. 40.0%–45.0%: 16 US counties (2%). Below this entry. 45.0%–50.0%: 16 US counties (2%). Below this entry. 50.0%–55.0%: 32 US counties (3%). Below this entry. 55.0%–60.0%: 50 US counties (5%). Below this entry. 60.0%–65.0%: 77 US counties (8%). This entry sits in this band. 65.0%–70.0%: 93 US counties (10%). Above this entry. 70.0%–75.0%: 109 US counties (11%). Above this entry. 75.0%–80.0%: 114 US counties (12%). Above this entry. 80.0%–85.0%: 123 US counties (13%). Above this entry. 85.0%–90.0%: 99 US counties (10%). Above this entry. 90.0%–95.0%: 117 US counties (12%). Above this entry. 95.0%–100.0%: 70 US counties (7%). Above this entry. 100.0%–105.0%: 7 US counties (1%). Above this entry. This county 0.0% 100% every floor-qualified US county, bucketed by value

Each bar is a band; taller bars hold more US counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Environmental Protection Agency, Air Quality System (AQS) · 2025

Pollutant Breakdown

Days where each pollutant was the primary driver of AQI readings in Holmes County.

Holmes County, Florida criteria pollutant distribution Stratified-band visualization showing the share of monitored days each criteria pollutant (PM2.5, PM10, O3, NO2, CO) was the primary AQI driver. PM2.5 · 83.6% Ozone · 16.4% 0% 25% 50% 75% 100% Holmes County, Florida · 365 monitored days Criteria pollutant column
  • PM2.5 · 305 days · 83.6%
  • Ozone · 60 days · 16.4%

2024 daily-monitor rhythm in Holmes County

Month-by-month median AQI from EPA day-level county monitors (357 reported days in 2024). Feb posted the highest typical readings (median AQI 54, peak 70); Jan was cleanest at median 37. Summer months (Jun–Aug) averaged median AQI 47 vs 43 in Dec–Feb.

0 10 20 30 40 50 60 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 37 54 41 51 51 48 40 52 43 52 41 38
Holmes County median daily AQI by calendar month (2024, EPA daily county file)

Five-year seasonal record

EPA day-level county files · 2020–2024

1,812 daily readings show a recurring local pattern: May has the highest matched-month median AQI (51), while Jan is lowest (42). Each cell is that month’s median daily AQI, not a current-air forecast.

JanFebMarAprMayJunJulAugSepOctNovDec
2020 413952484649514943484545
2021 433853525144395048495043
2022 425147515152363951535251
2023 465554485451425353464636
2024 375441515148405243524138

Lower AQI is better. The colors summarize EPA AQI bands; gaps mean the county had no day-level record for that month.

Health Impact Assessment

Moderate

Holmes County's air quality is rated Moderate based on 60.0% good air days. No unhealthy air days were recorded in 2025.

Air quality was acceptable on 60.0% of monitored days in 2025, with a median AQI of 46. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.

The dominant pollutant is PM2.5, driving AQI on 305 of 365 monitored days.

5-Year Air Quality Trend

Air quality is stable in Holmes County. Highest Good-day share: 2020 (60.9%, 221 of 363 monitored days).

Year Good Moderate USG Unhealthy Median AQI
2020 221 139 3 0 47
2021 206 156 0 0 48
2022 204 161 0 0 47
2023 189 176 0 0 49
2024 215 142 0 0 47
2025 219 146 0 0 46

How does Holmes County compare?

How Holmes County compares

Good-day share worse than typical
Holmes County 60.0%
Beaver County, Pennsylvania 55.6%
Typical US county 76.0%
Median AQI worse than typical
Holmes County 46
Beaver County, Pennsylvania 46
Typical US county 39
Unhealthy days / yr better than typical
Holmes County 0
Beaver County, Pennsylvania 0
Typical US county 1

Data Sources

Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by County dataset, 2020–2025 (aqs.epa.gov). For current conditions (not shown here — this page is historical annual data), see EPA AirNow (airnow.gov). See our methodology for how AQI, median, and coverage figures are computed.

Informational only, not professional advice. Data from EPA AQS. See our disclaimer. Spotted a figure that looks wrong? Report a correction.

Source: U.S. EPA Air Quality System (AQS) Annual AQI by county summary files for Holmes County, Florida · 2020–2025

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Every figure on PlainAirData 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.