| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 35°F | 56°F | 43°F | 1.1" |
| February | 37°F | 63°F | 48°F | 1.6" |
| March | 44°F | 71°F | 56°F | 4.6" |
| April | 49°F | 78°F | 63°F | 4.7" |
| May | 60°F | 83°F | 70°F | 10.4" |
| June | 68°F | 93°F | 80°F | 2.6" |
| July | 70°F | 93°F | 80°F | 3.2" |
| August | 70°F | 91°F | 80°F | 10.9" |
| September | 66°F | 90°F | 78°F | 6.3" |
| October | 55°F | 80°F | 66°F | 12.5" |
| November | 42°F | 70°F | 54°F | 3.8" |
| December | 33°F | 63°F | 46°F | 2.2" |
| Index | Rankin | Texas | National |
| Air quality index | 28 | 52 | 42 |
| Pollution index | 1,695,390 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 354 |
| Days with good air quality | 319 |
| Days with moderate air quality | 35 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Rankin, TX | 943 | 28 | 44.0% |
| City | Population | Air Quality Index | National Avg. |
| Town Creek, AL | 943 | 37 | 26.0% |
| Cascade-Chipita Park, CO | 943 | 45 | 10.0% |
| Waldo, FL | 943 | 35 | 30.0% |
| Dexter, GA | 943 | 38 | 24.0% |
| Elk Run Heights, IA | 943 | 39 | 22.0% |
| Rankin, TX | 943 | 28 | 44.0% |
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