| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 31°F | 52°F | 40°F | 5.3" |
| February | 32°F | 55°F | 42°F | 4.3" |
| March | 40°F | 64°F | 51°F | 3.9" |
| April | 48°F | 73°F | 60°F | 5.4" |
| May | 56°F | 79°F | 67°F | 5.5" |
| June | 65°F | 86°F | 75°F | 5.3" |
| July | 68°F | 89°F | 77°F | 5.2" |
| August | 67°F | 87°F | 76°F | 6.6" |
| September | 61°F | 82°F | 70°F | 4.3" |
| October | 48°F | 72°F | 59°F | 5.9" |
| November | 37°F | 62°F | 48°F | 9.4" |
| December | 34°F | 55°F | 44°F | 8.1" |
| Index | Concord | North Carolina | National |
| Air quality index | 40 | 35 | 42 |
| Pollution index | 13,834,800 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 292 |
| Days with moderate air quality | 73 |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.020% |
| Benzene | 0.170% |
| Carbon Tetrachloride | 0.050% |
| Lead | 0.030% |
| Mercury | 0.100% |
| City | Population | Air Quality Index | National Avg. |
| China Grove, NC | 4,225 | 40 | 20.0% |
| Landis, NC | 3,119 | 40 | 20.0% |
| Enochville, NC | 3,358 | 40 | 20.0% |
| Mooresville, NC | 38,498 | 40 | 20.0% |
| Mount Pleasant, NC | 2,007 | 40 | 20.0% |
| Concord, NC | 94,147 | 40 | 20.0% |
| City | Population | Air Quality Index | National Avg. |
| Lynn, MA | 94,201 | 43 | 14.0% |
| Victoria, BC | 94,229 | n/a | |
| Livonia, MI | 93,970 | 56 | 12.0% |
| Dearborn, MI | 94,328 | 56 | 12.0% |
| Plantation, FL | 94,366 | 41 | 18.0% |
| Concord, NC | 94,147 | 40 | 20.0% |
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