Rosstrevor, New South Wales in Central Darling Shire is a remote rural locality and civil parish of Yungnulgra County in far North West New South Wales. [1] [2]
The Parish an arid landscape. The parish has a Köppen climate classification of BWh (Hot desert),. [3] is almost unpopulated, with less than two inhabitants per square kilometer. [4] The nearest town is Whitecliffs 2 km to the west.
The parish has extremely hot summers and mild winters. Summers would usually exceed 36 °C. Winters are usually around 17 °C. The annual average rainfall is 249.7 millimetres (9.8 in) which would make it a semi-arid climate except that its high evapotranspiration, or its aridity, makes it a desert climate.
| Climate data for White Cliffs Post Office (1901-2012) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 48.6 (119.5) | 46.9 (116.4) | 44.1 (111.4) | 37.9 (100.2) | 31.9 (89.4) | 28.0 (82.4) | 28.8 (83.8) | 33.0 (91.4) | 39.5 (103.1) | 41.7 (107.1) | 45.0 (113.0) | 45.8 (114.4) | 48.6 (119.5) |
| Mean daily maximum °C (°F) | 35.8 (96.4) | 34.9 (94.8) | 31.6 (88.9) | 26.4 (79.5) | 21.4 (70.5) | 17.6 (63.7) | 17.2 (63.0) | 19.7 (67.5) | 23.9 (75.0) | 27.9 (82.2) | 31.5 (88.7) | 34.4 (93.9) | 26.9 (80.4) |
| Mean daily minimum °C (°F) | 20.9 (69.6) | 20.4 (68.7) | 17.2 (63.0) | 12.4 (54.3) | 8.2 (46.8) | 5.3 (41.5) | 4.1 (39.4) | 5.6 (42.1) | 9.0 (48.2) | 12.9 (55.2) | 16.4 (61.5) | 19.2 (66.6) | 12.6 (54.7) |
| Record low °C (°F) | 12.1 (53.8) | 8.8 (47.8) | 7.2 (45.0) | 2.6 (36.7) | −0.5 (31.1) | −2.3 (27.9) | −3.3 (26.1) | −1.7 (28.9) | 0.2 (32.4) | 2.0 (35.6) | 3.4 (38.1) | 6.8 (44.2) | −3.3 (26.1) |
| Average precipitation mm (inches) | 27.7 (1.09) | 27.1 (1.07) | 23.8 (0.94) | 15.4 (0.61) | 20.8 (0.82) | 19.0 (0.75) | 18.2 (0.72) | 15.4 (0.61) | 15.0 (0.59) | 23.2 (0.91) | 19.2 (0.76) | 25.1 (0.99) | 249.7 (9.83) |
| Average precipitation days | 3.0 | 2.8 | 2.5 | 2.2 | 3.4 | 3.7 | 3.8 | 3.4 | 3.0 | 3.6 | 3.1 | 3.0 | 37.5 |
| Source: [5] | |||||||||||||
The Parish is on the traditional lands of the Wandjiwalgu. [6] [7] Aboriginal peoples. [8]
In 1838 Thomas Mitchell (explorer) travelled down the nearby Darling River.
Charles Sturt passed through the Wandjiwalgu lands during 1845, [9] and in 1861 the Burke and Wills expedition passed nearby. [10]