| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 31°F | 55°F | 41°F | 0.5" |
| February | 35°F | 58°F | 45°F | 0.7" |
| March | 45°F | 68°F | 55°F | 1.0" |
| April | 52°F | 75°F | 62°F | 1.1" |
| May | 59°F | 81°F | 69°F | 2.6" |
| June | 69°F | 92°F | 79°F | 0.9" |
| July | 71°F | 95°F | 82°F | 8.3" |
| August | 71°F | 95°F | 82°F | 2.5" |
| September | 63°F | 87°F | 73°F | 0.7" |
| October | 52°F | 77°F | 62°F | 2.4" |
| November | 42°F | 66°F | 52°F | 2.1" |
| December | 33°F | 54°F | 42°F | 3.8" |
| Index | Coleman | Oklahoma | National |
| Air quality index | 325 | 55 | 42 |
| Pollution index | 782,011 | 1,271,533 | 2,726,193 |
| Measurement | Total |
| Days measured | 138 |
| Days with good air quality | 120 |
| Days with moderate air quality | 17 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Connerville, OK | 151 | 43 | 14.0% |
| Caney, OK | 309 | 325 | 550.0% |
| Caddo, OK | 1,178 | 325 | 550.0% |
| Tushka, OK | 503 | 325 | 550.0% |
| Milburn, OK | 275 | 325 | 550.0% |
| Coleman, OK | 335 | 325 | 550.0% |
| City | Population | Air Quality Index | National Avg. |
| Anchor Bay, CA | 335 | 33 | 34.0% |
| Las Flores CDP (Tehama County), CA | 335 | 89 | 78.0% |
| Butlertown, MD | 335 | 46 | 8.0% |
| Lake Angelus, MI | 335 | 56 | 12.0% |
| Eau Claire, PA | 335 | 31 | 38.0% |
| Coleman, OK | 335 | 325 | 550.0% |