| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 56°F | 42°F | 8.3" |
| February | 34°F | 60°F | 45°F | 7.1" |
| March | 43°F | 68°F | 55°F | 10.8" |
| April | 51°F | 78°F | 64°F | 6.1" |
| May | 58°F | 83°F | 70°F | 9.0" |
| June | 69°F | 91°F | 79°F | 7.6" |
| July | 70°F | 93°F | 81°F | 8.8" |
| August | 69°F | 93°F | 80°F | 7.7" |
| September | 62°F | 91°F | 75°F | 10.0" |
| October | 52°F | 80°F | 65°F | 11.1" |
| November | 39°F | 65°F | 51°F | 8.8" |
| December | 36°F | 58°F | 46°F | 9.9" |
| Index | McCaskill | Arkansas | National |
| Air quality index | 32 | 38 | 42 |
| Pollution index | 537,821 | 1,487,822 | 2,726,193 |
| Measurement | Total |
| Days measured | 355 |
| Days with good air quality | 347 |
| Days with moderate air quality | 8 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Antoine, AR | 174 | 32 | 36.0% |
| Delight, AR | 336 | 32 | 36.0% |
| Emmet, AR | 444 | 32 | 36.0% |
| Murfreesboro, AR | 1,905 | 32 | 36.0% |
| Prescott, AR | 2,995 | 32 | 36.0% |
| McCaskill, AR | 73 | 32 | 36.0% |
| City | Population | Air Quality Index | National Avg. |
| Spruce Pine, AL | 73 | 37 | 26.0% |
| Lindcove, CA | 73 | 66 | 32.0% |
| Sattley, CA | 73 | 44 | 12.0% |
| Paoli, CO | 73 | 19 | 62.0% |
| High Amana, IA | 73 | 39 | 22.0% |
| McCaskill, AR | 73 | 32 | 36.0% |
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