| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 32°F | 61°F | 46°F | 0.5" |
| February | 37°F | 68°F | 52°F | 0.4" |
| March | 44°F | 76°F | 60°F | 0.1" |
| April | 51°F | 83°F | 68°F | 0.1" |
| May | 59°F | 90°F | 76°F | 0.5" |
| June | 70°F | 100°F | 86°F | 0.5" |
| July | 72°F | 97°F | 84°F | 2.2" |
| August | 70°F | 95°F | 82°F | 2.4" |
| September | 64°F | 90°F | 77°F | 2.4" |
| October | 53°F | 83°F | 68°F | 0.6" |
| November | 41°F | 71°F | 56°F | 0.2" |
| December | 33°F | 61°F | 47°F | 0.5" |
| Index | Fabens | Texas | National |
| Air quality index | 53 | 52 | 42 |
| Pollution index | 10,468,500 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 147 |
| Days with moderate air quality | 205 |
| Days w/ poor A.Q. for sensitive groups | 11 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.030% |
| Benzene | 0.110% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.070% |
| Mercury | 0.040% |
| City | Population | Air Quality Index | National Avg. |
| Agua Dulce city, TX | 840 | 53 | 6.0% |
| Clint, TX | 718 | 53 | 6.0% |
| Horizon City, TX | 19,645 | 53 | 6.0% |
| Morning Glory, TX | 505 | 53 | 6.0% |
| Socorro, TX | 34,329 | 53 | 6.0% |
| Fabens, TX | 4,462 | 53 | 6.0% |
| City | Population | Air Quality Index | National Avg. |
| Buhl, ID | 4,462 | 20 | 60.0% |
| Kaplan, LA | 4,463 | 41 | 18.0% |
| Amite City, LA | 4,459 | 30 | 40.0% |
| Castle Hills, TX | 4,459 | 49 | 2.0% |
| Heritage Village, CT | 4,465 | 41 | 18.0% |
| Fabens, TX | 4,462 | 53 | 6.0% |
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