| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 36°F | 59°F | 46°F | 3.2" |
| February | 41°F | 64°F | 50°F | 1.9" |
| March | 49°F | 71°F | 59°F | 2.6" |
| April | 56°F | 78°F | 66°F | 3.4" |
| May | 63°F | 84°F | 73°F | 4.4" |
| June | 71°F | 92°F | 81°F | 3.2" |
| July | 74°F | 95°F | 84°F | 1.9" |
| August | 74°F | 97°F | 85°F | 1.9" |
| September | 68°F | 90°F | 78°F | 3.1" |
| October | 57°F | 81°F | 68°F | 4.1" |
| November | 48°F | 70°F | 58°F | 1.9" |
| December | 39°F | 60°F | 48°F | 1.8" |
| Index | Milford | Texas | National |
| Air quality index | 41 | 52 | 42 |
| Pollution index | 3,706,540 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 275 |
| Days with moderate air quality | 80 |
| Days w/ poor A.Q. for sensitive groups | 7 |
| Days with unhealthy air quality | 3 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.040% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Grandview, TX | 2,097 | 33 | 34.0% |
| Bynum, TX | 333 | 38 | 24.0% |
| Hillsboro, TX | 8,553 | 38 | 24.0% |
| Italy, TX | 2,345 | 41 | 18.0% |
| Malone, TX | 417 | 41 | 18.0% |
| Milford, TX | 958 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Leesburg, AL | 958 | 43 | 14.0% |
| Tres Pinos, CA | 958 | 37 | 26.0% |
| Woods Hole, MA | 958 | 36 | 28.0% |
| Diamond, MO | 958 | 37 | 26.0% |
| Philipsburg, MT | 958 | 20 | 60.0% |
| Milford, TX | 958 | 41 | 18.0% |