| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 52°F | 71°F | 61°F | 1.1" |
| February | 57°F | 75°F | 65°F | 1.1" |
| March | 62°F | 79°F | 69°F | 1.0" |
| April | 69°F | 84°F | 76°F | 1.0" |
| May | 74°F | 88°F | 80°F | 2.1" |
| June | 77°F | 92°F | 84°F | 2.1" |
| July | 78°F | 93°F | 85°F | 2.5" |
| August | 78°F | 94°F | 86°F | 0.8" |
| September | 76°F | 91°F | 82°F | 5.5" |
| October | 70°F | 87°F | 78°F | 2.0" |
| November | 62°F | 79°F | 70°F | 1.8" |
| December | 56°F | 73°F | 63°F | 1.4" |
| Index | Laguna Vista | Texas | National |
| Air quality index | 44 | 52 | 42 |
| Pollution index | 2,200,010 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 236 |
| Days with moderate air quality | 129 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Brownsville, TX | 189,413 | 44 | 12.0% |
| Del Mar Heights, TX | 169 | 44 | 12.0% |
| Los Fresnos, TX | 8,033 | 44 | 12.0% |
| South Padre Island, TX | 2,899 | 44 | 12.0% |
| Cameron Park, TX | 5,939 | 44 | 12.0% |
| Laguna Vista, TX | 3,270 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Lowesville, NC | 3,270 | 36 | 28.0% |
| Stonybrook, PA | 3,270 | 41 | 18.0% |
| Dandridge, TN | 3,269 | 44 | 12.0% |
| Grand Saline, TX | 3,269 | 36 | 28.0% |
| Grande Cache, AB | 3,269 | n/a | |
| Laguna Vista, TX | 3,270 | 44 | 12.0% |