| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 25°F | 46°F | 35°F | 3.6" |
| February | 24°F | 47°F | 36°F | 3.4" |
| March | 31°F | 56°F | 43°F | 4.3" |
| April | 41°F | 67°F | 53°F | 3.8" |
| May | 50°F | 75°F | 62°F | 4.0" |
| June | 61°F | 84°F | 72°F | 4.5" |
| July | 67°F | 89°F | 77°F | 5.5" |
| August | 64°F | 87°F | 75°F | 5.0" |
| September | 58°F | 81°F | 69°F | 4.1" |
| October | 47°F | 70°F | 58°F | 5.3" |
| November | 36°F | 60°F | 48°F | 3.5" |
| December | 30°F | 51°F | 40°F | 5.8" |
| Index | Longport | New Jersey | National |
| Air quality index | 37 | 45 | 42 |
| Pollution index | 5,772,270 | 7,246,891 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 328 |
| Days with moderate air quality | 36 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.030% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.030% |
| Mercury | 0.030% |
| City | Population | Air Quality Index | National Avg. |
| Northfield, NJ | 8,088 | 37 | 26.0% |
| Ventnor City, NJ | 9,995 | 37 | 26.0% |
| Absecon, NJ | 8,471 | 37 | 26.0% |
| Pomona, NJ | 7,756 | 37 | 26.0% |
| Ocean City, NJ | 11,065 | 37 | 26.0% |
| Longport, NJ | 803 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| Pearlington, MS | 803 | 45 | 10.0% |
| Drayton, ND | 803 | 33 | 34.0% |
| Bégin, QC | 803 | n/a | |
| Temagami, ON | 803 | n/a | |
| Wadley, AL | 802 | 38 | 24.0% |
| Longport, NJ | 803 | 37 | 26.0% |
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