| 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 | Dobson | North Carolina | National |
| Air quality index | 45 | 35 | 42 |
| Pollution index | 1,016,480 | 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 | 0.040% |
| Benzene | 0.002% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.040% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Lowgap, NC | 253 | 45 | 10.0% |
| Pleasant Hill, NC | 825 | 45 | 10.0% |
| Cana, VA | 1,863 | 45 | 10.0% |
| Boonville, NC | 1,434 | 45 | 10.0% |
| Mount Airy, NC | 10,467 | 45 | 10.0% |
| Dobson, NC | 1,555 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Columbine Valley, CO | 1,555 | 58 | 16.0% |
| Kirkland, IL | 1,555 | 42 | 16.0% |
| South Whitley, IN | 1,555 | 31 | 38.0% |
| Erie, KS | 1,555 | 38 | 24.0% |
| White Pigeon, MI | 1,555 | 37 | 26.0% |
| Dobson, NC | 1,555 | 45 | 10.0% |