| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 36°F | 58°F | 47°F | 4.9" |
| February | 34°F | 57°F | 45°F | 3.9" |
| March | 41°F | 69°F | 54°F | 4.7" |
| April | 49°F | 75°F | 62°F | 6.3" |
| May | 57°F | 81°F | 69°F | 2.1" |
| June | 67°F | 88°F | 77°F | 7.2" |
| July | 71°F | 92°F | 81°F | 8.0" |
| August | 72°F | 94°F | 82°F | 6.6" |
| September | 66°F | 88°F | 76°F | 5.3" |
| October | 57°F | 78°F | 67°F | 8.8" |
| November | 42°F | 67°F | 54°F | 3.8" |
| December | 37°F | 59°F | 47°F | 5.5" |
| Index | Rockfish | North Carolina | National |
| Air quality index | 41 | 35 | 42 |
| Pollution index | 1,844,150 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 363 |
| Days with good air quality | 282 |
| Days with moderate air quality | 81 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.002% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Shannon, NC | 348 | 30 | 40.0% |
| Rennert, NC | 400 | 30 | 40.0% |
| Rex, NC | 56 | 30 | 40.0% |
| Wakulla, NC | 111 | 30 | 40.0% |
| St. Pauls, NC | 2,114 | 30 | 40.0% |
| Rockfish, NC | 3,700 | 41 | 18.0% |
| City | Population | Air Quality Index | National Avg. |
| Upland, IN | 3,701 | 35 | 30.0% |
| Village Green, NY | 3,701 | 37 | 26.0% |
| Ahtanum, WA | 3,701 | 38 | 24.0% |
| Austin, AR | 3,698 | 45 | 10.0% |
| Mountain View Acres, CA | 3,698 | 89 | 78.0% |
| Rockfish, NC | 3,700 | 41 | 18.0% |
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