In June 2023, the temperatures measured at night in °C at a weather station in Limpopo were as follows:
12, 16, 15, 12, 19, 17, 27, 18, 16, 14, 13, 12, 12, 12, 15, 16, 14, 16, 15, 12, 18, 16, 17, 16, 15, 16, 18, 15, 16, 15, 18, 19

Calculate the median.