| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 51°F | 40°F | 3.6" |
| February | 32°F | 54°F | 42°F | 2.5" |
| March | 40°F | 63°F | 51°F | 3.5" |
| April | 49°F | 73°F | 60°F | 4.3" |
| May | 57°F | 79°F | 67°F | 4.5" |
| June | 65°F | 86°F | 76°F | 4.0" |
| July | 69°F | 89°F | 78°F | 4.1" |
| August | 68°F | 87°F | 77°F | 4.8" |
| September | 62°F | 81°F | 71°F | 3.9" |
| October | 49°F | 72°F | 60°F | 3.8" |
| November | 39°F | 62°F | 50°F | 3.6" |
| December | 34°F | 54°F | 44°F | 3.8" |
| Index | Walnut Cove | North Carolina | National |
| Air quality index | 45 | 35 | 42 |
| Pollution index | 533,491 | 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 | 0.020% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.020% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Oak Ridge, NC | 7,138 | 43 | 14.0% |
| Madison, NC | 2,231 | 43 | 14.0% |
| Mayodan, NC | 2,430 | 43 | 14.0% |
| Stokesdale, NC | 5,586 | 43 | 14.0% |
| Stoneville, NC | 1,271 | 43 | 14.0% |
| Walnut Cove, NC | 2,161 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Coalgate, OK | 2,161 | 43 | 14.0% |
| Cascade, IA | 2,160 | 29 | 42.0% |
| Watervliet, MI | 2,160 | 39 | 22.0% |
| Hoyt Lakes, MN | 2,160 | 35 | 30.0% |
| Village of Four Seasons, MO | 2,160 | 39 | 22.0% |
| Walnut Cove, NC | 2,161 | 45 | 10.0% |