Pygmy Possum Project

This Drought

Monthly rainfall for St Ives (Richmond Avenue), Ku-ring-gai Wildflower Garden (KWFG): Red bold indicates years with less than 5 consecutive months of sufficient rainfall, months with insufficient rainfall of less than 50% of the mean rainfall for the month, and highly deficient annual totals below 1000 mm.

Year

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Total

2014

25.4

78.8

179.6

76.2

19.6

55.8

14.6

263.3

68.0

66.2

18.8

174.6

1040.9

2015

172.4

45.6

55.2

363.2

104.4

75.4

39.0

36.0

83.2

27.6

87.8

100.8

1190.6

2016

357.2

23.2

111.4

38.4

12.8

339.8

99.0

132.2

58.1

38.8

29.4

70.2

1252.4

2017

33.2

189.2

391.0

47.2

22.0

179.4

2.6

28.6

0.8

51.4

42.0

56.4

1043.8

2018

35.6

118.8

128.6

20.0

25.6

112.6

5.4

5.2

48.8

271.2

133.8

87.8

993.4

2019

69.6

82.2

259.8

33.8

32.6

118.8

42.6

 

 

 

 

 

 

Mean

106.8

140.4

151.4

108.2

89.1

137.2

63.8

80.6

45.2

86.2

97.6

88.8

1195.3

The totals above where extracted from the BOM annual rainfall statistics for KWFG as collected by KMC staff. Note that none of the past years of the Pygmy Possum Project (2014 to 2018) has had sufficient rainfall with 2018 being overall highly deficient in rainfall. Only the most recent September 2018 to March 2019 period had sufficient rainfall, i.e. 7 months of sufficient rain. However, April and May 2019 have again been deficient despite a near coastal location where rainfall is more reliable than further inland. As you move west rainfall deficiency worsens leading to the rapid drop in dam levels that lead to current water restrictions.

Please read the following which explains how climate change is exacerbating the current drought:

Is Climate Change Supercharging Drought in Australia ?

So, climate change is causing the weather system that we rely on for rainfall in the cooler months to move much further south where it doesn't contribute as much to Sydney region rainfall.

 

 
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