21°S 148°E Carborough Range– Queensland by Degrees

AT THE POINT

Degree confluence 21°S 148°E, Google Earth

sit

IN THE DEGREE SQUARE

loc

Climate: The closest representative weather station to the confluence is at the Collinsville Post Office, which is approximately 52 km to the north, and has an elevation of 196 m. The station has been collecting data since 1939.

 

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Mean max
(ºC)

33.4

32.7

31.9

30.3

27.6

25.1

24.9

26.8

29.6

32.2

33.4

34.0

30.2

Mean min
(ºC)

21.9

21.8

20.0

16.9

13.9

10.4

9.0

10.6

13.5

17.3

20.0

21.3

16.4

Mean rain
(mm)

136.3

164.3

92.5

41.9

32.8

27.6

20.5

17.3

11.1

21.8

51.1

96.3

715.8

The highest temperature recorded was 44.0°C in January 1994, and the lowest was -1.1°C in both June 1961 and August 1960. The greatest rainfall recorded in a year was 1 583.6 mm in 1956, and the least was 365.9 mm in 2001. These and other climate statistics for Collinsville can be found at: Australian Bureau of Meteorology, http://www.bom.gov.au/climate/averages/tables/cw_033013_All.shtml.

Extremes of Nature: The area has been subject to numerous cyclones since recording began in 1906, due to its tropical location. The database maintained by the Bureau of Meteorology shows that 32 cyclones have passed within 200 km of the degree confluence, four of which have come within 50 km (an unnamed TC in 1954, TC Otto in 1977, TC Charlie in 1988, and TC Igor in 1990). These cyclones bring with them potentially destructive winds and intense rainfall. Cyclone information for this area and all of Australia can be found at the Australian Bureau of Meteorology website, http://www.bom.gov.au/cgi-bin/silo/cyclones.cgi.

cyc

Cyclone tracks within 200 km of point 1906 to 2006 (Bureau of Meteorology web site)

Extreme heat is also sometimes a danger. Records show that the Collinsville Station experiences 37 days annually with temperatures 35°C or warmer, although very rarely does the temperature reach 40°C. Such extreme temperatures can cause heat stroke and death if appropriate measures are not taken such as avoiding strenuous physical effort, keeping as cool as possible and drinking lots of water. Heat waves kill more people in Australia than all other natural hazards combined.

Today:

The total population of the degree square at the 2011 national Census was 4722.

MEASURE

1996

2001

2006

2011

Total population

4075

4033

4443

4722

Total males

2130

2257

2376

2600

Total females

1945

1776

2067

2122

Under 5 years

381

302

358

381

65 years and over

297

396

419

445

Indigenous

80

109

132

158

Collinsville had a population of 1846 in 2011 and Glenden had a population of 1310.


Information: Ken Granger

Climate information:  Jo Grant

Edited by:  Hayley Freemantle