Bad Air Days in Comanche County, Oklahoma: 3 a Year
3 bad air days a year
About the middle of monitored US counties. Ranked 430 of 996 monitored counties, where 1 is worst.
What makes them bad: mostly ozone: summer smog (20% particle days).
The bad-air season here
- J
- F
- M
- A
- M
- J
- J
- A
- S
- O
- N
- D
Most bad days here fall in August and September and July and October. Averaged over 2016 to 2025.
What to buy, and what not to
- Bad air days are rare here. A standard furnace filter is enough; no purifier needed for outdoor air.
- On the odd bad day, check AirNow and keep windows shut.
The worst days on file
In 2000 to 2009 this county averaged 15 bad days a year; in 2016 to 2025, 3. The air has improved. The worst recent year was 2024, with 7 bad days on 362 monitored days.
| Date | AQI | Main pollutant |
|---|---|---|
| 2024-10-27 | 339 | PM2.5 |
| 2024-08-08 | 133 | Ozone |
| 2025-03-14 | 131 | PM2.5 |
| 2022-06-30 | 126 | Ozone |
| 2023-08-17 | 126 | Ozone |
The air on a normal day
Across 3,621 monitored days from 2016 to 2025, the air in Comanche County rated Good on 66% of them, less often than the 72% typical of monitored counties, and Moderate on 34%. The median day sat at AQI 45; one day in ten went above 66.
The pollutant setting the AQI on an ordinary day here:
- ozone51%1,853 days
- fine particles (PM2.5)49%1,768 days
Comanche County by year
| Year | Days monitored | Good | Moderate | Over 100 | Over 150 | Median AQI | Highest AQI |
|---|---|---|---|---|---|---|---|
| 2025* | 358 | 239 | 115 | 4 | 0 | 44 | 131 |
| 2024 | 362 | 242 | 113 | 7 | 1 | 43 | 339 |
| 2023 | 357 | 216 | 137 | 4 | 0 | 46 | 126 |
| 2022 | 353 | 205 | 146 | 2 | 0 | 47 | 126 |
| 2021 | 364 | 223 | 139 | 2 | 0 | 47 | 124 |
| 2020 | 366 | 262 | 103 | 1 | 0 | 44 | 107 |
| 2019 | 365 | 220 | 145 | 0 | 0 | 47 | 97 |
| 2018 | 365 | 240 | 121 | 4 | 0 | 44 | 122 |
| 2017 | 365 | 249 | 115 | 1 | 0 | 44 | 115 |
| 2016 | 366 | 277 | 89 | 0 | 0 | 42 | 87 |
| 2015 | 364 | 247 | 117 | 0 | 0 | 44 | 97 |
| 2014 | 365 | 208 | 156 | 1 | 0 | 47 | 105 |
| 2013 | 365 | 199 | 160 | 6 | 0 | 48 | 119 |
| 2012 | 364 | 149 | 208 | 7 | 1 | 54 | 151 |
| 2011 | 364 | 141 | 205 | 18 | 0 | 54 | 143 |
| 2010 | 365 | 174 | 189 | 2 | 0 | 52 | 136 |
*2025 may be a partial year in EPA's file.
Nearby counties on file
- Love County10/yr
- Tulsa County6/yr
- Oklahoma County6/yr
- Jefferson County5/yr
- McClain County5/yr
- Ottawa County4/yr
- Carter County4/yr
- Washington County4/yr
How this is counted
A bad air day is a day the county's daily AQI from EPA AirData went above 100, the level where EPA tells children, older adults and people with asthma or heart disease to cut back outdoors. Monitors do not run every day, so yearly counts are scaled to 365 days. This is the record, not today's air: for that, check AirNow. More on the method in how the county numbers are made, on the AQI 100 line in what counts as a bad air day, and on why a purifier does not touch ozone in smoke vs ozone.