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Kalgoorlie Weather & Climate

Kalgoorlie has a dry climate with hot summers and cool winters. The average annual rainfall is 260mm on an average of 65 days and, while the average rainfall is fairly evenly distributed throughout the year, there is considerable variation from year to year.

January is the hottest month with an average maximum temperature of 33.6°C, but temperatures above 40.0°C occur nearly once a week when hot, dry, north to northeasterly winds arrive. Such high temperatures are usually followed by a cool change from the south and occasionally with a thunderstorm.

By contrast winters are cool with July average maximum and minimum temperatures being 16.5°C and 4.8°C respectively. Cold wet days with a maximum below 12.0°C occur about once every winter. The lowest maximum temperature recorded is 7.2°C on 19 July 1961. Overnight temperatures fall below freezing about 4 times in a typical winter. Such events occur on clear nights following a day of cold southerly winds.