| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 34°F | 54°F | 43°F | 3.8" |
| February | 35°F | 57°F | 45°F | 5.8" |
| March | 42°F | 65°F | 53°F | 3.4" |
| April | 51°F | 75°F | 63°F | 8.9" |
| May | 59°F | 81°F | 70°F | 6.0" |
| June | 68°F | 88°F | 77°F | 5.2" |
| July | 71°F | 90°F | 80°F | 5.8" |
| August | 70°F | 89°F | 78°F | 4.4" |
| September | 64°F | 83°F | 73°F | 8.0" |
| October | 53°F | 74°F | 63°F | 1.5" |
| November | 42°F | 65°F | 52°F | 2.9" |
| December | 38°F | 59°F | 48°F | 5.0" |
| Index | Dover | North Carolina | National |
| Air quality index | 42 | 35 | 42 |
| Pollution index | 2,609,700 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 237 |
| Days with good air quality | 205 |
| Days with moderate air quality | 32 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.001% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.030% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Grifton, NC | 2,873 | 42 | 16.0% |
| Jackson Heights, NC | 714 | 42 | 16.0% |
| Hookerton, NC | 645 | 42 | 16.0% |
| Kinston, NC | 20,173 | 42 | 16.0% |
| Pollocksville, NC | 282 | 42 | 16.0% |
| Dover, NC | 283 | 42 | 16.0% |
| City | Population | Air Quality Index | National Avg. |
| El Nido, CA | 283 | 48 | 4.0% |
| Buncombe, IL | 283 | 44 | 12.0% |
| Sparta, KY | 283 | 54 | 8.0% |
| Ryegate, MT | 283 | 21 | 58.0% |
| Chester, NE | 283 | 19 | 62.0% |
| Dover, NC | 283 | 42 | 16.0% |
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