Mount Gambier has a warm-summer Mediterranean climate (Koppen: Csb). The town has warm dry summers and cool wet winters. July is the wettest month with an average of 100.2 mm falling on 22 days whilst February normally records the lowest rainfall with an average of 26 mm on an average 8 days. The highest ever temperature recorded in Mount Gambier was 44.9 °C on 2 February 2014 and the lowest ever temperature recorded was −3.9 °C on 20 June 1950 and 2 July 1960. Mount Gambier has 40.5 clear days on an annual basis.