Abstract: Kalgoorlie-Boulder is located in the Goldfields-Esperance region of Western Australia approximately, 600 km east of Perth. It is Australia’s largest outback city (City of Kalgoorlie-Boulder 2009) and occupies an area of 95 576 km2 (Australian Bureau of Statistics 2009). ## The name Kalgoorlie comes from the Aboriginal word ‘kulgooluh’ (or ‘karlkurla’), meaning ‘silky pear’ (an edible fruit common to the region). Gold was discovered in the area by Paddy Hannan, Daniel Shea and Tom Flanagan in 1893, and today Kalgoorlie-Boulder is considered Australia’s gold capital (City of Kalgoorlie-Boulder 2009). ## The City of Kalgoorlie-Boulder local government area was created on 1 February 1989 with the amalgamation of the Shire of Boulder and the Town of Kalgoorlie (Wikipedia 2009). It covers two state government electorates: that of Eyre (including Boulder), and the seat of Kalgoorlie. The federal seat of Kalgoorlie is one of Australia’s largest electorates (City of Kalgoorlie-Boulder 2009). ## The monthly temperature for Kalgoorlie-Boulder ranges from 50 C to 33.60 C (Figure 1), with a mean annual maximum temperature of 25.20 C and mean annual minimum temperature of 11.6 0 C. Its mean monthly rainfall ranges from 14 mm to 31.2 mm (Figure 2), with annual rainfall of 265.2 mm (Bureau of Meteorology 2009).