What Is the Air Quality in Meade, South Dakota?
Meade, South Dakota has an Air Quality Grade of C (fair) with a 5-year median AQI of 39. The dominant pollutant is Ground-Level Ozone, and air quality has been worsening over the past decade.
Meade, South Dakota Air Quality Snapshot
| Air Quality Grade | C61/100 |
| 5-Year Median AQI | 39 (Good) |
| Most Recent Median AQI (2023) | 43 (Good) |
| Dominant Pollutant | Ground-Level Ozone |
| 10-Year Trend | Worsening (+0.70 AQI/yr) |
| Unhealthy Days (last 5 yr) | 8 |
| National Rank (cleanest = #1) | #409 of 1,020 (40th cleanest percentile) |
| South Dakota Rank | #4 of 10 |
What Does the C Grade Mean?
Meade, South Dakota earns a C — air quality is fair, but not great. With a 5-year median AQI of 39, the city sees a meaningful number of "Moderate" days each year, when the EPA flags air as a concern for unusually sensitive people.
Meade, South Dakota's 5-year median AQI of 39 is 2 points below the national average of 41 — meaningfully cleaner than the typical U.S. metro tracked here. Within South Dakota, Meade, South Dakota runs more polluted than the state average of 36 — local sources or geography are concentrating pollution above the state's typical reading.
For context within South Dakota: Hughes, South Dakota currently holds the state's cleanest grade (A, AQI 13), while Codington, South Dakota sits at the bottom (D, AQI 40).
What's in Meade, South Dakota's Air?
The dominant pollutant in Meade, South Dakota is Ground-Level Ozone. Ground-level ozone forms when sunlight reacts with vehicle exhaust and industrial emissions. It is worst on hot, sunny, stagnant summer days. Ozone irritates the lungs, triggers asthma attacks, and reduces lung function — even healthy adults can feel chest tightness and shortness of breath after exercising in elevated ozone.
Days by Dominant Pollutant (2023)
| Pollutant | Days as Dominant | Share of Year |
|---|---|---|
| Ground-Level Ozone | 352 | 97% |
| Coarse Particulate Matter (PM10) | 11 | 3% |
Is the Air Getting Better or Worse?
Air quality in Meade, South Dakota has been getting worse over the past decade, with median AQI climbing by roughly 0.7 points per year. That bucks the national trend of broad improvement, and most often reflects either growing wildfire smoke exposure (particularly across the West) or rising local emissions from population and freight growth.
In 2014, Meade, South Dakota posted a median AQI of 36. By 2023 that figure was 43 — a rise of 7 AQI points dirtier across 10 years of EPA records.
Year-by-Year AQI in Meade, South Dakota
| Year | Median AQI | Good Days | Unhealthy Days | Dominant Pollutant |
|---|---|---|---|---|
| 2014 | 36 | 356 | 0 | Ozone |
| 2015 | 38 | 352 | 0 | Ozone |
| 2016 | 35 | 354 | 0 | Ozone |
| 2017 | 30 | 361 | 0 | Ozone |
| 2018 | 29 | 361 | 0 | Ozone |
| 2019 | 36 | 358 | 0 | Ozone |
| 2020 | 38 | 342 | 0 | Ozone |
| 2021 | 38 | 308 | 7 | Ozone |
| 2022 | 39 | 347 | 0 | Ozone |
| 2023 | 43 | 322 | 1 | Ozone |
Health Context for Meade, South Dakota
Across the past five years, this area has logged just 8 days where AQI rose into the "Unhealthy for Sensitive Groups" range or worse — about 2 days per year, or roughly one every other month. That is a low count by national standards.
Healthy adults can continue normal outdoor activity in most weather, but should pay attention to AQI alerts during the worst pollution windows. People with asthma, heart disease, or pregnancy should reduce prolonged or intense outdoor exertion on flagged days, and consider running an indoor HEPA air cleaner during peak season. Because ozone peaks in the afternoon on hot sunny days, plan outdoor exercise for early morning or after sunset on bad-air days.
How This Grade Is Calculated
The AirHistory Air Quality Grade combines four signals: the 5-year median AQI (40% of the score), the 10-year trend direction (30%), the count of unhealthy days per year (20%), and the dominant pollutant type (10%). All four come directly from the EPA Air Quality System (AQS), which aggregates readings from federally certified monitors. Read the full methodology.
Meade, South Dakota has an Air Quality Grade of C (fair) with a 5-year median AQI of 39. The dominant pollutant is Ground-Level Ozone, and air quality has been worsening over the past decade.
This answer pulls from the EPA Air Quality System (AQS), the authoritative federal source for U.S. air quality and pollution monitoring. The headline number above is the direct answer; what follows is the additional context most readers need to use the answer for a real decision rather than just a fact lookup.
For readers turning this answer into action: cross-reference against the underlying the EPA Air Quality System (AQS) record before acting on time-sensitive decisions. The site renders the data as it was published; subsequent revisions can shift the picture, and the live federal data is always the authoritative current reference.
Source: EPA Outdoor Air Quality Data, 2026.