Air quality in Cody, Wyoming, United States of America today

Mr. Duck’s Air Quality Score

Good air today for Cody, Wyoming, United States of America

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Cody, Wyoming is currently classified as Good. The primary pollutant identified is PM2.5, with a measured concentration of 2.4 µg/m³ based on a single valid observation. The Good rating reflects that pollutant levels are within the range associated with this category. Only one measurement contributed to this assessment, and no PM10 data were reported. The valid measurement count is one, indicating limited data for this reporting period. The reference value for PM2.5 is 2.4 µg/m³, matching the observed concentration.

OpenAQ provides a platform that collects air quality observations from a variety of government and research networks, standardizes the data, and publishes it for public use. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.

Latest sensor values

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

What the data includes

The Cody, Wyoming air‑quality record pulls in five measured pollutants – nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤ 10 µm (PM₁₀), particulate matter ≤ 2.5 µm (PM₂.₅) and sulfur dioxide (SO₂). The dataset comes from two monitoring sites, identified as Cody SLAMS and Cody Mobile, and contains six individual rows of observations. All six rows are classified as “old” in the source system, meaning none are flagged as recent or unknown.

Freshness varies markedly across the pollutants. The most up‑to‑date entry is for PM₂.₅, recorded at Cody SLAMS on 2026‑01‑24 14:00 UTC, with a value of 2.4 µg/m³. That station also contributed a second PM₂.₅ reading, giving the pollutant a modest spread: the minimum observed value is 1.0 µg/m³, the median 1.7 µg/m³, and the maximum 2.4 µg/m³, with the 10th and 90th percentiles at 1.14 and 2.26 µg/m³ respectively. In contrast, the remaining four pollutants each have a single historic measurement from Cody Mobile dated 2019‑10‑08 (or 15:00 for PM₁₀). NO₂ is consistently reported as 0.001 ppm, O₃ as 0.04 ppm, PM₁₀ as 8.0 µg/m³ and SO₂ as 0.0 ppm, with no observed variation across the dataset.

These numbers illustrate an uneven coverage pattern: PM₂.₅ benefits from two observations, including a recent reading, while the other pollutants rely on a solitary, several‑year‑old data point. Because most rows are old, the snapshot does not capture day‑to‑day changes that can occur across different parts of Cody. Users should keep in mind that actual conditions may differ from the values shown here, especially given the limited temporal depth and the small number of monitoring locations.

Learn more about sources and filtering: About the data.

Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)

Latest sensor values (bars)

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

Data notes

This report is based on a single valid measurement and was updated within 30 days. The data were last refreshed on 2026-01-24 at 14:00 UTC. While this snapshot reflects current conditions, air quality can vary by location and time within Cody, Wyoming, so values may differ across neighborhoods and throughout the day.

OpenAQ station rows