Colorado Springs Air Quality in August

Across 2019–2025, Colorado Springs's August air quality had a median AQI of 64 (Moderate) over 217 monitored days in the Colorado Springs, CO area. 9.3% of August days (20 of 217) reached Unhealthy for Sensitive Groups or worse, and ground-level ozone set the daily AQI on 91.7% of days. The cleanest August on record here was 2025 (median AQI 52, 0 days above 100) and the worst was 2021 (median 87, 11 days above 100, peak AQI 136).

64
Median AQI
Moderate
9.3%
Days above AQI 100
20 of 217 days
97
90th percentile AQI
worst 1 day in 10
151
Peak AQI
Unhealthy
O3
Main pollutant
91.7% of days
24.9%
Good days
54 of 217
  • Good: 24.9%
  • Moderate: 65.9%
  • Unhealthy for Sensitive Groups: 8.8%
  • Unhealthy or worse: 0.5%

Reduce Indoor Ozone in Colorado Springs

Today's main pollutant in Colorado Springs is ground-level ozone (AQI 41). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.

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QUICK ANSWER

How is the air in Colorado Springs in August?

Moderate on a typical day: median AQI 64 across 2019–2025, with 9.3% of August days above AQI 100. Ground-level ozone is the main driver.

  • 24.9% of August days were Good (AQI 0–50), 65.9% Moderate (51–100).
  • 20 days of 217 reached AQI 101+; the August peak was 151.
  • Best August: 2025; worst August: 2021.

Frequently asked questions

What is the air quality like in Colorado Springs in August?

Across 2019–2025, the median daily AQI in Colorado Springs in August was 64 (Moderate). 24.9% of days were Good, 65.9% Moderate, and 9.3% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.

Is August a good time for outdoor exercise in Colorado Springs?

A typical August day in Colorado Springs is Moderate (median AQI 64): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 11 of August days (9.3%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

Which pollutant causes Colorado Springs's August air quality problems?

Ground-level ozone set the daily AQI on 91.7% of August days in Colorado Springs. The highest August AQI recorded in 2019–2025 was 151 (Unhealthy), in 2021.

Colorado Springs August air quality, year by year

Colorado Springs August air quality by year (Colorado Springs, CO, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20193161087O3
202031746151O3
2021worst318711136O3
20223167093O3
20233161097O3
202431583126O3
2025cleanest3152080O3

What August air means in Colorado Springs

A typical August day in Colorado Springs is Moderate (median AQI 64): outdoor exercise is acceptable for most people, but unusually sensitive individuals should watch for symptoms, and about 1 day in 11 of August days (9.3%) reached AQI 101+ — the level at which EPA advises people with asthma, children and older adults to shorten hard outdoor exertion.

August's median AQI of 64 is above Colorado Springs's whole-year median of 46, making it one of the area's dirtier periods. Nationally, the median August AQI across every EPA metro area (104,152 metro-days, 2019–2025) is 45, so Colorado Springs runs above the national August norm; 9.3% of its August days topped AQI 100 versus 3.5% nationally (above average).

August is part of Colorado Springs's summer season (June, July, August); the summer page pools all three months.

Activity-specific thresholds: running, cycling, kids' sports.

Right now in Colorado Springs

The latest EPA AirNow observation puts Colorado Springs's AQI at 41 (O3). The figures above are multi-year month statistics, not today's reading.

View current Colorado Springs air quality →

Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Colorado Springs, CO), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.