| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 27°F | 52°F | 38°F | 1.3" |
| February | 30°F | 56°F | 41°F | 2.4" |
| March | 41°F | 68°F | 53°F | 3.1" |
| April | 50°F | 76°F | 61°F | 6.1" |
| May | 58°F | 82°F | 69°F | 5.0" |
| June | 68°F | 91°F | 79°F | 5.8" |
| July | 72°F | 96°F | 83°F | 5.0" |
| August | 70°F | 95°F | 82°F | 3.3" |
| September | 61°F | 88°F | 73°F | 3.6" |
| October | 50°F | 77°F | 62°F | 3.3" |
| November | 39°F | 65°F | 51°F | 2.2" |
| December | 29°F | 52°F | 39°F | 1.3" |
| Index | Glencoe | Oklahoma | National |
| Air quality index | 40 | 55 | 42 |
| Pollution index | 277,099 | 1,271,533 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 292 |
| Days with moderate air quality | 72 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.004% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Ripley, OK | 269 | 36 | 28.0% |
| Morrison, OK | 693 | 40 | 20.0% |
| Stillwater, OK | 50,183 | 40 | 20.0% |
| Pawnee, OK | 2,111 | 40 | 20.0% |
| Maramec, OK | 108 | 40 | 20.0% |
| Glencoe, OK | 495 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Gambell, AK | 495 | 38 | 24.0% |
| Isleton, CA | 495 | 45 | 10.0% |
| Wilkerson, CA | 495 | 47 | 6.0% |
| Ideal, GA | 495 | 39 | 22.0% |
| Hume, IL | 495 | 42 | 16.0% |
| Glencoe, OK | 495 | 40 | 20.0% |
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