| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 34°F | 55°F | 44°F | 4.8" |
| February | 30°F | 54°F | 41°F | 3.3" |
| March | 38°F | 65°F | 50°F | 4.2" |
| April | 46°F | 72°F | 59°F | 7.1" |
| May | 53°F | 80°F | 66°F | 5.6" |
| June | 63°F | 87°F | 75°F | 5.7" |
| July | 68°F | 92°F | 79°F | 3.1" |
| August | 68°F | 92°F | 79°F | 1.9" |
| September | 61°F | 87°F | 74°F | 4.2" |
| October | 53°F | 76°F | 64°F | 6.9" |
| November | 39°F | 65°F | 51°F | 5.4" |
| December | 34°F | 56°F | 44°F | 7.5" |
| Index | Wilson | North Carolina | National |
| Air quality index | 36 | 35 | 42 |
| Pollution index | 2,959,880 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 325 |
| Days with moderate air quality | 38 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.004% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Rocky Mount, NC | 56,346 | 36 | 28.0% |
| Bailey, NC | 512 | 36 | 28.0% |
| Saratoga, NC | 378 | 36 | 28.0% |
| Macclesfield, NC | 321 | 36 | 28.0% |
| Elm City, NC | 1,767 | 36 | 28.0% |
| Wilson, NC | 50,769 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Cerritos, CA | 50,765 | 72 | 44.0% |
| Murray, UT | 50,780 | 51 | 2.0% |
| Harrisburg, PA | 50,810 | 44 | 12.0% |
| San Jacinto, CA | 50,682 | 89 | 78.0% |
| West Lafayette, IN | 50,904 | 42 | 16.0% |
| Wilson, NC | 50,769 | 36 | 28.0% |