| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 46°F | 71°F | 57°F | 1.9" |
| February | 50°F | 76°F | 61°F | 1.1" |
| March | 57°F | 81°F | 67°F | 2.4" |
| April | 63°F | 87°F | 73°F | 1.8" |
| May | 69°F | 91°F | 79°F | 4.0" |
| June | 73°F | 96°F | 83°F | 2.3" |
| July | 75°F | 97°F | 84°F | 4.4" |
| August | 75°F | 99°F | 85°F | 2.3" |
| September | 72°F | 93°F | 81°F | 4.9" |
| October | 63°F | 88°F | 74°F | 1.2" |
| November | 56°F | 80°F | 66°F | 1.4" |
| December | 49°F | 71°F | 59°F | 1.7" |
| Index | Benavides | Texas | National |
| Air quality index | 30 | 52 | 42 |
| Pollution index | 2,768,160 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 284 |
| Days with good air quality | 234 |
| Days with moderate air quality | 50 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| 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. |
| Loma Linda East CDP (Starr County), TX | 0 | 30 | 40.0% |
| Concepcion, TX | 44 | 30 | 40.0% |
| San Diego, TX | 4,062 | 30 | 40.0% |
| Realitos, TX | 113 | 30 | 40.0% |
| Loma Linda East, TX | 123 | 30 | 40.0% |
| Benavides, TX | 2,077 | 30 | 40.0% |
| City | Population | Air Quality Index | National Avg. |
| Riverside, AL | 2,077 | 38 | 24.0% |
| Alorton, IL | 2,077 | 54 | 8.0% |
| Fredonia, KS | 2,077 | 22 | 56.0% |
| Dundee, NY | 2,077 | 34 | 32.0% |
| La Plata, NM | 2,078 | 49 | 2.0% |
| Benavides, TX | 2,077 | 30 | 40.0% |
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