| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 33°F | 56°F | 44°F | 3.4" |
| February | 35°F | 59°F | 46°F | 2.8" |
| March | 42°F | 68°F | 54°F | 3.3" |
| April | 50°F | 77°F | 63°F | 2.7" |
| May | 58°F | 83°F | 70°F | 3.1" |
| June | 67°F | 90°F | 78°F | 3.1" |
| July | 70°F | 92°F | 80°F | 2.8" |
| August | 69°F | 91°F | 79°F | 3.4" |
| September | 63°F | 85°F | 73°F | 3.0" |
| October | 50°F | 76°F | 62°F | 3.3" |
| November | 39°F | 66°F | 51°F | 3.1" |
| December | 37°F | 59°F | 47°F | 5.0" |
| Index | Coronaca | South Carolina | National |
| Air quality index | 31 | 37 | 42 |
| Pollution index | 1,755,840 | 3,620,438 | 2,726,193 |
| Measurement | Total |
| Days measured | 250 |
| Days with good air quality | 248 |
| Days with moderate air quality | 2 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.010% |
| Mercury | 0.003% |
| City | Population | Air Quality Index | National Avg. |
| Hodges, SC | 226 | 31 | 38.0% |
| Cokesbury, SC | 432 | 31 | 38.0% |
| Promised Land, SC | 555 | 31 | 38.0% |
| Ninety Six, SC | 2,395 | 31 | 38.0% |
| Donalds, SC | 313 | 31 | 38.0% |
| Coronaca, SC | 81 | 31 | 38.0% |
| City | Population | Air Quality Index | National Avg. |
| Blue Eye, AR | 81 | 18 | 64.0% |
| Nimmons, AR | 81 | 26 | 48.0% |
| Roe, AR | 81 | 45 | 10.0% |
| Kirk, CO | 81 | 58 | 16.0% |
| Oto, IA | 81 | 35 | 30.0% |
| Coronaca, SC | 81 | 31 | 38.0% |
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