| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 55°F | 42°F | 3.5" |
| February | 32°F | 58°F | 45°F | 2.9" |
| March | 39°F | 67°F | 53°F | 4.2" |
| April | 47°F | 76°F | 62°F | 3.9" |
| May | 56°F | 82°F | 69°F | 3.8" |
| June | 65°F | 89°F | 77°F | 4.2" |
| July | 68°F | 92°F | 79°F | 3.6" |
| August | 68°F | 91°F | 79°F | 4.2" |
| September | 62°F | 85°F | 73°F | 3.8" |
| October | 48°F | 76°F | 62°F | 3.0" |
| November | 37°F | 66°F | 51°F | 3.5" |
| December | 34°F | 58°F | 46°F | 4.7" |
| Index | Harrisburg | North Carolina | National |
| Air quality index | 49 | 35 | 42 |
| Pollution index | 13,834,800 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 200 |
| Days with moderate air quality | 147 |
| Days w/ poor A.Q. for sensitive groups | 18 |
| Days with unhealthy air quality | 0 |
| 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. |
| Enochville, NC | 3,358 | 40 | 20.0% |
| Concord, NC | 94,147 | 40 | 20.0% |
| Kannapolis, NC | 49,788 | 40 | 20.0% |
| Mount Pleasant, NC | 2,007 | 40 | 20.0% |
| Cornelius, NC | 29,836 | 49 | 2.0% |
| Harrisburg, NC | 16,073 | 49 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Albemarle, NC | 16,073 | 40 | 20.0% |
| Cullman, AL | 16,072 | 41 | 18.0% |
| Cold Lake, AB | 16,076 | n/a | |
| Zephyrhills, FL | 16,062 | 36 | 28.0% |
| Crawfordsville, IN | 16,088 | 42 | 16.0% |
| Harrisburg, NC | 16,073 | 49 | 2.0% |
Here are the best places to live in North Carolina
See the best places to live in Harrisburg
Safest States In The US
Check out the 10 safest cities in North Carolina