| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 35°F | 57°F | 45°F | 3.6" |
| February | 36°F | 59°F | 46°F | 3.8" |
| March | 43°F | 65°F | 53°F | 3.2" |
| April | 52°F | 73°F | 62°F | 4.1" |
| May | 60°F | 80°F | 69°F | 4.1" |
| June | 68°F | 87°F | 77°F | 4.7" |
| July | 72°F | 89°F | 79°F | 6.8" |
| August | 71°F | 88°F | 79°F | 7.6" |
| September | 67°F | 84°F | 74°F | 9.3" |
| October | 56°F | 76°F | 65°F | 5.4" |
| November | 45°F | 67°F | 55°F | 3.9" |
| December | 40°F | 61°F | 50°F | 4.3" |
| Index | Havelock | North Carolina | National |
| Air quality index | 37 | 35 | 42 |
| Pollution index | 3,449,020 | 2,789,538 | 2,726,193 |
| Measurement | Total |
| Days measured | 259 |
| Days with good air quality | 239 |
| Days with moderate air quality | 20 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.050% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.040% |
| Lead | 0.030% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Indian Beach, NC | 184 | 37 | 26.0% |
| Cedar Point, NC | 2,176 | 37 | 26.0% |
| Morehead City, NC | 9,495 | 37 | 26.0% |
| Pine Knoll Shores, NC | 1,284 | 37 | 26.0% |
| Fairfield Harbour, NC | 2,803 | 37 | 26.0% |
| Havelock, NC | 19,927 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| North Ogden, UT | 19,930 | 45 | 10.0% |
| Snellville, GA | 19,923 | 52 | 4.0% |
| Fort Mill, SC | 19,920 | 49 | 2.0% |
| Ennis, TX | 19,917 | 41 | 18.0% |
| Parma Heights, OH | 19,916 | 50 | = 100 |
| Havelock, NC | 19,927 | 37 | 26.0% |
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