| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 69°F | 54°F | 3.1" |
| February | 46°F | 72°F | 58°F | 1.9" |
| March | 52°F | 78°F | 64°F | 3.3" |
| April | 59°F | 83°F | 71°F | 2.7" |
| May | 66°F | 88°F | 76°F | 5.3" |
| June | 72°F | 94°F | 82°F | 3.0" |
| July | 74°F | 95°F | 83°F | 4.7" |
| August | 74°F | 97°F | 84°F | 3.2" |
| September | 70°F | 93°F | 80°F | 4.6" |
| October | 59°F | 87°F | 72°F | 2.9" |
| November | 50°F | 78°F | 63°F | 2.5" |
| December | 45°F | 70°F | 56°F | 1.7" |
| Index | Edna | Texas | National |
| Air quality index | 31 | 52 | 42 |
| Pollution index | 322,924 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 341 |
| Days with good air quality | 319 |
| Days with moderate air quality | 22 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.005% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Lolita, TX | 761 | 31 | 38.0% |
| Ganado, TX | 2,127 | 31 | 38.0% |
| Louise, TX | 927 | 31 | 38.0% |
| Inez, TX | 2,668 | 31 | 38.0% |
| Vanderbilt, TX | 631 | 31 | 38.0% |
| Edna, TX | 5,729 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Estherville, IA | 5,729 | 15 | 70.0% |
| Belding, MI | 5,729 | 38 | 24.0% |
| Lewisburg, PA | 5,730 | 35 | 30.0% |
| Lakeview, NY | 5,727 | 51 | 2.0% |
| New Brighton, PA | 5,731 | 6 | 88.0% |
| Edna, TX | 5,729 | 31 | 38.0% |
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