As in most arid inland areas, the days are very hot and the nights are very cold. The months between October and March have an average of 43 days where the temperature is above 40°C. The highest temperature recorded in the park was 47°C in December 1993. In winter, the temperature overnight often falls below freezing (0°C). The average temperature range for winter months is 14–30°C. The lowest temperature recorded in the park was –5°C in July 1976.