Glendo, Wyoming Air Quality
Glendo has a median AQI of 14, earning an air quality grade of A+ — excellent air quality that ranks better than 96% of US cities. Air quality has remained relatively stable over the past decade. Particulate matter (PM10) is the primary concern, often linked to vehicle traffic, industrial activity, and wildfire smoke. In 2025, Glendo recorded 157 good air quality days (88% of monitored days) and 5 unhealthy days.
Population: 243 • County: Platte
Current AQI
Quick Facts
| Current AQI | 3 — Good |
| Air Quality Grade | A+ |
| Median AQI (2025) | 14 |
| vs. U.S. Cities | Better than 96% |
| Primary Pollutant | PM10 |
| Unhealthy Days/Year | 5 |
| 10-Year Trend | → Stable |
| 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 Glendo is sourced from the Converse County Long-Term monitoring area, located approximately 48 miles from city center. This EPA-certified station continuously tracks particulate matter (PM10), the primary driver of air quality alerts in this area.
Glendo has relatively consistent air quality throughout the year without a strong seasonal peak. Air quality is primarily influenced by local traffic, industrial activity, and regional weather patterns rather than a single seasonal driver.
AQI Trend (10 Years)
Air Quality Days by Year
Glendo Median AQI by Year
Annual EPA air quality data for Glendo — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2025 | 14 | 157 | 8 | 406 | PM10 |
| 2024 | 19 | 325 | 9 | 927 | PM10 |
| 2023 | 14 | 334 | 5 | 320 | PM10 |
| 2022 | 17 | 311 | 15 | 692 | PM10 |
| 2021 | 16 | 324 | 10 | 682 | PM10 |
| 2020 | 19 | 202 | 2 | 283 | PM10 |
| 2019 | 14 | 56 | 1 | 108 | PM10 |
| 2018 | 15 | 58 | — | 55 | PM10 |
| 2017 | 15 | 54 | — | 72 | PM10 |
| 2016 | 16 | 50 | — | 66 | PM10 |
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 Glendo Air Quality
What is the air quality in Glendo today?
The current AQI in Glendo is 3, 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 Glendo getting better or worse?
Air quality in Glendo has been stable. The median AQI has dropped 2 points (from 16 in 2016 to 14 in 2025).
What is the most common air pollutant in Glendo?
PM10 is the primary air pollutant in Glendo, responsible for 179 days (100% of monitored days) in 2025. Particulate matter originates from vehicle exhaust, wildfires, construction, and industrial activity.
How many unhealthy air days does Glendo have per year?
In 2025, Glendo recorded 88% good air quality days (157 days) out of 179 monitored days. There were 2 Unhealthy for Sensitive Groups days and 3 Unhealthy days (AQI above 100). The most severe category (Very Unhealthy or Hazardous) occurred on 3 days. The highest single-day AQI recorded was 406.
What air quality grade does Glendo receive?
Glendo receives an air quality grade of A+, placing it better than 96% of US cities. This is based on a median AQI of 14 in 2025, with 157 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 96% of US cities
Nearby Cities
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National Rankings
See how Glendo compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Glendo
Glendo's primary pollutant is PM10 (coarse dust and pollen). Units with a washable pre-filter stage plus True HEPA handle the larger particles that drive most of this area's air quality days.
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