| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 49°F | 68°F | 58°F | 5.5" |
| February | 54°F | 72°F | 62°F | 4.7" |
| March | 60°F | 76°F | 67°F | 3.3" |
| April | 66°F | 82°F | 73°F | 0.7" |
| May | 70°F | 86°F | 78°F | 2.9" |
| June | 76°F | 91°F | 83°F | 4.8" |
| July | 79°F | 92°F | 85°F | 10.7" |
| August | 78°F | 94°F | 85°F | 2.5" |
| September | 74°F | 91°F | 82°F | 4.5" |
| October | 67°F | 85°F | 75°F | 5.5" |
| November | 59°F | 78°F | 67°F | 10.6" |
| December | 52°F | 70°F | 60°F | 4.0" |
| Index | Gregory | Texas | National |
| Air quality index | 42 | 52 | 42 |
| Pollution index | 11,617,000 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 262 |
| Days with moderate air quality | 102 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.140% |
| Carbon Tetrachloride | 0.230% |
| Lead | 0.020% |
| Mercury | 0.020% |
| City | Population | Air Quality Index | National Avg. |
| Country Acres, TX | 278 | 42 | 16.0% |
| Port Aransas, TX | 4,203 | 42 | 16.0% |
| La Paloma Addition, TX | 361 | 42 | 16.0% |
| Rockport, TX | 10,815 | 42 | 16.0% |
| Tradewinds, TX | 106 | 42 | 16.0% |
| Gregory, TX | 2,218 | 42 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| Hidden Hills, CA | 2,218 | 72 | 44.0% |
| Lathrop, MO | 2,218 | 43 | 14.0% |
| Lebel-sur-Quévillon, QC | 2,218 | n/a | |
| Davisboro, GA | 2,217 | 47 | 6.0% |
| Waterloo, IN | 2,217 | 45 | 10.0% |
| Gregory, TX | 2,218 | 42 | 16.0% |
Here are the best places to live in Texas
10 Best cities in Texas for employment
Top 10 best public schools in Gregory
Top 10 cities in Texas with the best education system