Seaside Park, New Jersey has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 8.4 °C (low) to 16.2 °C (high). Annual precipitation averages 1259.9 Millimeters. Seaside Park is located in USDA Plant Hardiness Zone 7b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -3.2 °C | 4.8 °C | 102.11 mm |
| February | -2.6 °C | 5.6 °C | 81.79 mm |
| March | 0.9 °C | 8.8 °C | 122.94 mm |
| April | 6.2 °C | 14.2 °C | 91.95 mm |
| May | 11.3 °C | 19.2 °C | 96.27 mm |
| June | 16.9 °C | 24.7 °C | 110.74 mm |
| July | 20.3 °C | 27.7 °C | 110.74 mm |
| August | 20 °C | 27 °C | 117.86 mm |
| September | 16.5 °C | 23.7 °C | 93.73 mm |
| October | 9.9 °C | 18.1 °C | 116.84 mm |
| November | 4.3 °C | 12.7 °C | 93.73 mm |
| December | -0.2 °C | 7.9 °C | 121.16 mm |
| Annual | 8.4 °C | 16.2 °C | 1259.86 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 7b : -15°C to -12.2°C |
| Plant Hardiness Zone - 2012 | Zone 7b : -15°C to -12.2°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |