Terrytown experiences mild winters with temperatures rarely dropping below freezing, averaging around 12°C in January and warming up to average highs of 18°C by March. Spring arrives in April, bringing warmer temperatures that steadily rise throughout the season, peaking at averages of 28°C in June. Summer months are warm but not sweltering, with July and August averaging around 28°C. Autumn is characterized by a cooling trend, with temperatures dropping to averages of 14°C by November. Winters return with mild conditions again, with December temperatures averaging around 17°C.