| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 37°F | 57°F | 46°F | 3.6" |
| February | 37°F | 60°F | 47°F | 4.5" |
| March | 44°F | 68°F | 55°F | 4.3" |
| April | 52°F | 76°F | 63°F | 4.5" |
| May | 60°F | 82°F | 70°F | 6.1" |
| June | 69°F | 88°F | 77°F | 8.2" |
| July | 72°F | 91°F | 80°F | 8.1" |
| August | 71°F | 89°F | 79°F | 6.5" |
| September | 66°F | 84°F | 73°F | 5.3" |
| October | 54°F | 76°F | 64°F | 7.0" |
| November | 44°F | 66°F | 53°F | 7.3" |
| December | 41°F | 61°F | 50°F | 5.7" |
| Index | Nichols | South Carolina | National |
| Air quality index | 30 | 37 | 42 |
| Pollution index | 940,521 | 3,620,438 | 2,726,193 |
| Measurement | Total |
| Days measured | 117 |
| Days with good air quality | 101 |
| Days with moderate air quality | 16 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.003% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Cerro Gordo, NC | 322 | 30 | 40.0% |
| Lake View, SC | 714 | 30 | 40.0% |
| Evergreen, NC | 125 | 30 | 40.0% |
| Dillon, SC | 6,358 | 30 | 40.0% |
| Fair Bluff, NC | 585 | 30 | 40.0% |
| Nichols, SC | 228 | 30 | 40.0% |
| City | Population | Air Quality Index | National Avg. |
| Fruitdale, AL | 228 | 42 | 16.0% |
| Grady, AR | 228 | 45 | 10.0% |
| Griffithville, AR | 228 | 45 | 10.0% |
| Everglades, FL | 228 | 34 | 32.0% |
| Arthur, IA | 228 | 35 | 30.0% |
| Nichols, SC | 228 | 30 | 40.0% |
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