| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 49°F | 39°F | 8.6" |
| February | 31°F | 52°F | 41°F | 4.5" |
| March | 40°F | 62°F | 50°F | 5.0" |
| April | 48°F | 72°F | 59°F | 7.8" |
| May | 56°F | 77°F | 66°F | 7.5" |
| June | 64°F | 85°F | 74°F | 6.6" |
| July | 68°F | 87°F | 77°F | 9.4" |
| August | 68°F | 86°F | 76°F | 7.9" |
| September | 61°F | 80°F | 69°F | 6.3" |
| October | 49°F | 70°F | 59°F | 7.1" |
| November | 39°F | 60°F | 49°F | 10.1" |
| December | 35°F | 52°F | 43°F | 7.7" |
| Index | Boonville | North Carolina | National |
| Air quality index | 45 | 35 | 42 |
| Pollution index | 3,428,900 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 225 |
| Days with moderate air quality | 140 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.005% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Yadkinville, NC | 2,892 | 45 | 10.0% |
| Pleasant Hill, NC | 808 | 45 | 10.0% |
| East Bend, NC | 739 | 45 | 10.0% |
| Jonesville, NC | 2,513 | 45 | 10.0% |
| Dobson, NC | 1,511 | 45 | 10.0% |
| Boonville, NC | 1,404 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Ash Grove, MO | 1,404 | 39 | 22.0% |
| Bonner-West Riverside, MT | 1,404 | 40 | 20.0% |
| Stinnett, TX | 1,404 | 44 | 12.0% |
| Kootenay Boundary C / Christina Lake, BC | 1,404 | n/a | |
| Mescal, AZ | 1,403 | 47 | 6.0% |
| Boonville, NC | 1,404 | 45 | 10.0% |
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