| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 32°F | 57°F | 43°F | 4.5" |
| February | 37°F | 62°F | 47°F | 3.4" |
| March | 46°F | 73°F | 58°F | 2.8" |
| April | 55°F | 81°F | 66°F | 13.3" |
| May | 62°F | 87°F | 73°F | 4.9" |
| June | 73°F | 97°F | 85°F | 7.0" |
| July | 76°F | 99°F | 87°F | 6.3" |
| August | 75°F | 100°F | 87°F | 3.9" |
| September | 66°F | 89°F | 76°F | 8.1" |
| October | 54°F | 77°F | 64°F | 6.0" |
| November | 44°F | 69°F | 55°F | 1.0" |
| December | 35°F | 57°F | 44°F | 3.3" |
| Index | Windthorst | Texas | National |
| Air quality index | 26 | 52 | 42 |
| Pollution index | 406,090 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 345 |
| Days with good air quality | 308 |
| Days with moderate air quality | 37 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Archer City, TX | 1,597 | 26 | 48.0% |
| Scotland, TX | 642 | 26 | 48.0% |
| Windthorst, TX | 336 | 26 | 48.0% |
| City | Population | Air Quality Index | National Avg. |
| Delight, AR | 336 | 32 | 36.0% |
| Fargo, GA | 336 | 38 | 24.0% |
| Kempton, IN | 336 | 42 | 16.0% |
| Bradfordsville, KY | 336 | 40 | 20.0% |
| Bellflower, MO | 336 | 38 | 24.0% |
| Windthorst, TX | 336 | 26 | 48.0% |
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