| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 35°F | 61°F | 46°F | 2.8" |
| February | 40°F | 66°F | 51°F | 3.2" |
| March | 47°F | 75°F | 59°F | 3.9" |
| April | 57°F | 83°F | 69°F | 3.6" |
| May | 63°F | 87°F | 74°F | 1.4" |
| June | 73°F | 95°F | 84°F | 1.2" |
| July | 76°F | 98°F | 86°F | 2.4" |
| August | 75°F | 99°F | 86°F | 1.8" |
| September | 67°F | 91°F | 78°F | 1.7" |
| October | 56°F | 82°F | 68°F | 2.8" |
| November | 46°F | 71°F | 57°F | 1.7" |
| December | 37°F | 61°F | 47°F | 3.0" |
| Index | Haskell | Texas | National |
| Air quality index | 26 | 52 | 42 |
| Pollution index | 122,809 | 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 | 0.003% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Weinert, TX | 223 | 26 | 48.0% |
| Rule, TX | 709 | 26 | 48.0% |
| Stamford, TX | 2,984 | 26 | 48.0% |
| Rochester, TX | 347 | 26 | 48.0% |
| Haskell, TX | 3,321 | 26 | 48.0% |
| City | Population | Air Quality Index | National Avg. |
| Taylor Creek, OH | 3,320 | 54 | 8.0% |
| Cassville, MO | 3,322 | 18 | 64.0% |
| Adelaide-Metcalfe, ON | 3,322 | n/a | |
| Tyro, NC | 3,319 | 40 | 20.0% |
| Howe, TX | 3,319 | 325 | 550.0% |
| Haskell, TX | 3,321 | 26 | 48.0% |