| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 28°F | 48°F | 36°F | 5.3" |
| February | 32°F | 55°F | 42°F | 1.7" |
| March | 40°F | 67°F | 51°F | 6.3" |
| April | 45°F | 70°F | 56°F | 2.1" |
| May | 56°F | 79°F | 66°F | 3.5" |
| June | 64°F | 88°F | 75°F | 6.3" |
| July | 68°F | 93°F | 80°F | 4.5" |
| August | 69°F | 92°F | 80°F | 6.7" |
| September | 63°F | 89°F | 75°F | 2.9" |
| October | 50°F | 78°F | 63°F | 2.5" |
| November | 37°F | 67°F | 51°F | 1.6" |
| December | 27°F | 53°F | 38°F | 2.5" |
| Index | Sanford | Texas | National |
| Air quality index | 44 | 52 | 42 |
| Pollution index | 3,096,460 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 259 |
| Days with moderate air quality | 96 |
| Days w/ poor A.Q. for sensitive groups | 10 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.610% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.870% |
| Mercury | 0.130% |
| City | Population | Air Quality Index | National Avg. |
| Stinnett, TX | 1,404 | 44 | 12.0% |
| Borger, TX | 12,534 | 44 | 12.0% |
| Fritch, TX | 2,630 | 44 | 12.0% |
| Lake Meredith Estates, TX | 409 | 44 | 12.0% |
| Sanford, TX | 130 | 44 | 12.0% |
| City | Population | Air Quality Index | National Avg. |
| Pitkas Point, AK | 130 | 31 | 38.0% |
| McKittrick, CA | 130 | 67 | 34.0% |
| Parrott, GA | 130 | 39 | 22.0% |
| Atlanta, KS | 130 | 40 | 20.0% |
| Beverly, KS | 130 | 32 | 36.0% |
| Sanford, TX | 130 | 44 | 12.0% |
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