| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 32°F | 54°F | 42°F | 4.4" |
| February | 33°F | 57°F | 44°F | 4.3" |
| March | 41°F | 65°F | 52°F | 4.9" |
| April | 50°F | 75°F | 62°F | 10.2" |
| May | 58°F | 82°F | 69°F | 7.3" |
| June | 66°F | 89°F | 77°F | 8.1" |
| July | 70°F | 91°F | 79°F | 10.3" |
| August | 69°F | 90°F | 78°F | 7.3" |
| September | 63°F | 83°F | 72°F | 12.7" |
| October | 50°F | 74°F | 61°F | 8.5" |
| November | 39°F | 64°F | 50°F | 8.2" |
| December | 36°F | 58°F | 46°F | 6.4" |
| Index | Carthage | North Carolina | National |
| Air quality index | 29 | 35 | 42 |
| Pollution index | 1,844,150 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 57 |
| Days with good air quality | 57 |
| Days with moderate air quality | |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Seven Lakes, NC | 4,438 | 29 | 42.0% |
| Robbins, NC | 1,615 | 29 | 42.0% |
| Foxfire, NC | 1,757 | 29 | 42.0% |
| Southern Pines, NC | 14,347 | 29 | 42.0% |
| Sanford, NC | 29,758 | 29 | 42.0% |
| Carthage, NC | 2,518 | 29 | 42.0% |
| City | Population | Air Quality Index | National Avg. |
| Dover, MA | 2,518 | 43 | 14.0% |
| New Hope, PA | 2,518 | 41 | 18.0% |
| Enon, OH | 2,517 | 45 | 10.0% |
| Kirbyville, TX | 2,519 | 45 | 10.0% |
| Lake Meade, PA | 2,516 | 42 | 16.0% |
| Carthage, NC | 2,518 | 29 | 42.0% |
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