| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 47°F | 71°F | 58°F | 0.9" |
| February | 52°F | 77°F | 62°F | 0.6" |
| March | 59°F | 84°F | 70°F | 1.9" |
| April | 66°F | 92°F | 77°F | 2.2" |
| May | 71°F | 95°F | 82°F | 4.9" |
| June | 77°F | 101°F | 88°F | 1.6" |
| July | 78°F | 102°F | 89°F | 2.1" |
| August | 78°F | 103°F | 90°F | 1.2" |
| September | 74°F | 96°F | 84°F | 5.0" |
| October | 66°F | 90°F | 77°F | 1.2" |
| November | 57°F | 80°F | 67°F | 1.0" |
| December | 49°F | 70°F | 59°F | 1.5" |
| Index | La Coma | Texas | National |
| Air quality index | 41 | 52 | 42 |
| Pollution index | 2,768,160 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 258 |
| Days with moderate air quality | 106 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Aguilares, TX | 0 | 41 | 18.0% |
| El Cenizo CDP, TX | 506 | 41 | 18.0% |
| Rio Bravo, TX | 4,686 | 41 | 18.0% |
| Laredo Ranchettes West, TX | 0 | 41 | 18.0% |
| Los Veteranos I, TX | 48 | 41 | 18.0% |
| La Coma, TX | 42 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Chignik, AK | 42 | 31 | 38.0% |
| Circle, AK | 42 | 38 | 24.0% |
| Manley Hot Springs, AK | 42 | 38 | 24.0% |
| South Naknek, AK | 42 | 31 | 38.0% |
| Corinth, AR | 42 | 38 | 24.0% |
| La Coma, TX | 42 | 41 | 18.0% |
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