has a hot Mediterranean climate
(Koppen climate classification Csa
), which generally means mild, wet winters and hot, dry summers. Of all the Australian capital cities, Adelaide is the driest. Rainfall is unreliable, light and infrequent throughout summer. The average in January and February is around 20 millimetres (0.8 inches) but completely rainless months are by no means uncommon and in 1893 sixty-nine days passed without measurable rainfall. In contrast, the winter has fairly reliable rainfall with June being the wettest month of the year, averaging around 80 mm.
In the summer, maximum average is but there is considerable variation and Adelaide can usually expect around 3 days a year when the daytime temperature is 40 °C or above. In January 1939, the temperature reached twice. From 3 March 2008, Adelaide recorded 15 consecutive days of temperatures over 35 °C, again a record for an Australian capital. In winter from June to August, maximum average is and minimum is usually around . Frosts
are common in the valleys of the Adelaide Hills
, but rare elsewhere, with the most notable occurrences having occurred in July 1908 and July 1982. There is usually no appreciable snowfall
in Adelaide, except on rare occasions at Mount Lofty
and in some places in the Adelaide Hills
- Hottest temperature – 12 January 1939,
- Coldest temperature – 8 June 1982,
- Wettest month – June 1916,
- Hottest Minimum- 33.9°C, 28- 29 January......