According to the
Trewartha climate classification system, Cape Lookout National Seashore, North Carolina has a
humid subtropical climate with hot and humid summers, cool winters and year-around precipitation (
Cfak). Cfak climates are characterized by all months having an average mean temperature > 32.0 °F (> 0.0 °C), at least eight months with an average mean temperature ≥ 50.0 °F (≥ 10.0 °C), at least one month with an average mean temperature ≥ 71.6 °F (≥ 22.0 °C) and no significant precipitation difference between seasons. During the summer months in Cape Lookout National Seashore, a cooling afternoon
sea breeze is present on most days, but episodes of extreme heat and humidity can occur with
heat index values ≥ 100 °F (≥ 38 °C). Cape Lookout National Seashore is prone to hurricane strikes, particularly during the
Atlantic hurricane season which extends from June 1 through November 30, sharply peaking from late August through September. During the winter months, episodes of cold and wind can occur with
wind chill values < 10 °F (< -12 °C). The
plant hardiness zone at Core Sound in Cape Lookout National Seashore is 8b with an average annual extreme minimum air temperature of 16.6 °F (-8.6 °C). The average seasonal (Dec-Mar) snowfall total is < 2 inches (< 5 cm), and the average annual peak in
nor'easter activity is in February. {{Weather box {{Weather box ==Ecology==