Renfrow, Oklahoma Air Quality
Renfrow has a median AQI of 29, earning an air quality grade of A+ — excellent air quality that ranks better than 90% of US cities. Air quality has been trending worse over the past decade, a concern for local residents and health officials. Particulate matter (PM2.5) is the primary concern, often linked to vehicle traffic, industrial activity, and wildfire smoke. In 2025, Renfrow recorded 18 good air quality days (90% of monitored days).
Population: 40 • County: Grant
Current AQI
Quick Facts
| Current AQI | 19 — Good |
| Air Quality Grade | A+ |
| Median AQI (2025) | 29 |
| vs. U.S. Cities | Better than 90% |
| Primary Pollutant | PM2.5 |
| Unhealthy Days/Year | 0 |
| 10-Year Trend | ↓ Worsening |
| Data Source | EPA AQS (historical) · AirNow (live) |
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 90 Days
Current Pollutant Levels
Real-time data from EPA AirNow
Local Air Quality Context
Air quality data for Renfrow is sourced from the Ponca City monitoring area, located approximately 36 miles from city center. This EPA-certified station continuously tracks particulate matter (PM2.5), the primary driver of air quality alerts in this area.
Renfrow tends to see elevated PM2.5 readings during fall and winter months when temperature inversions trap pollutants near the surface. Wood burning, vehicle exhaust, and reduced wind speeds compound the effect. Residents with respiratory conditions should monitor forecasts closely between November and February.
AQI Trend (10 Years)
Air Quality Days by Year
Renfrow Median AQI by Year
Annual EPA air quality data for Renfrow — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2025 | 29 | 18 | — | 58 | PM2.5 |
| 2024 | 32 | 92 | — | 86 | PM2.5 |
| 2023 | 32 | 94 | — | 89 | PM2.5 |
| 2022 | 28 | 102 | — | 73 | PM2.5 |
| 2021 | 30 | 90 | — | 66 | PM2.5 |
| 2020 | 26 | 94 | — | 69 | PM2.5 |
| 2019 | 22 | 27 | — | 43 | PM2.5 |
Source: EPA Air Quality System (AQS) annual summaries. "Unhealthy Days" includes Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, and Hazardous categories.
2025 Air Quality Summary
Primary Pollutant Days (2025)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Renfrow Air Quality
What is the air quality in Renfrow today?
The current AQI in Renfrow is 19, rated "Good". Air quality is good — outdoor activity is safe for everyone today. Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Renfrow getting better or worse?
Air quality in Renfrow has been worsening. The median AQI has risen 7 points (from 22 in 2019 to 29 in 2025), a concern for local health officials.
What is the most common air pollutant in Renfrow?
PM2.5 is the primary air pollutant in Renfrow, responsible for 20 days (100% of monitored days) in 2025. Particulate matter originates from vehicle exhaust, wildfires, construction, and industrial activity.
How many unhealthy air days does Renfrow have per year?
In 2025, Renfrow recorded 90% good air quality days (18 days) out of 20 monitored days. There were 0 Unhealthy for Sensitive Groups days and 0 Unhealthy days (AQI above 100). The highest single-day AQI recorded was 58.
What air quality grade does Renfrow receive?
Renfrow receives an air quality grade of A+, placing it better than 90% of US cities. This is based on a median AQI of 29 in 2025, with 18 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 90% of US cities
Nearby Cities
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National Rankings
See how Renfrow compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Renfrow
Renfrow sees its worst PM2.5 during winter temperature inversions when particulates get trapped near ground level. A unit with True HEPA and an auto-mode sensor is most effective for responding to these spikes.
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