| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 38°F | 61°F | 48°F | 2.3" |
| February | 42°F | 65°F | 52°F | 1.7" |
| March | 50°F | 73°F | 61°F | 3.2" |
| April | 58°F | 80°F | 68°F | 2.7" |
| May | 65°F | 86°F | 75°F | 3.7" |
| June | 74°F | 94°F | 84°F | 3.8" |
| July | 77°F | 98°F | 87°F | 1.6" |
| August | 77°F | 99°F | 88°F | 1.6" |
| September | 70°F | 92°F | 81°F | 2.8" |
| October | 59°F | 82°F | 70°F | 3.5" |
| November | 49°F | 71°F | 60°F | 2.8" |
| December | 40°F | 61°F | 49°F | 2.2" |
| Index | Lakeside | Texas | National |
| Air quality index | 33 | 52 | 42 |
| Pollution index | 453,692 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 329 |
| Days with moderate air quality | 33 |
| Days w/ poor A.Q. for sensitive groups | 3 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.005% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Lakeside town (San Patricio County), TX | 307 | 33 | 34.0% |
| Briar, TX | 5,255 | 33 | 34.0% |
| Annetta North, TX | 443 | 33 | 34.0% |
| Hudson Oaks, TX | 2,613 | 33 | 34.0% |
| Edgecliff Village, TX | 3,007 | 33 | 34.0% |
| Lakeside, TX | 1,636 | 33 | 34.0% |
| City | Population | Air Quality Index | National Avg. |
| Clearwater, MN | 1,636 | 32 | 36.0% |
| South Connellsville, PA | 1,636 | 36 | 28.0% |
| West Glendive, MT | 1,635 | 34 | 32.0% |
| Pilot Mountain, NC | 1,635 | 45 | 10.0% |
| Estancia, NM | 1,635 | 53 | 6.0% |
| Lakeside, TX | 1,636 | 33 | 34.0% |
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