Table 1 Table showing wet season (JJAS) monthly maximum weekly Murrumbidgee River heights at Hay (southern MDB) that exceed/equal flood level (6.7 m), and seasonal count, in the 125 years 1874–2018. Note the absence of flood height exceedance values since 1991.

From: From the 1990s climate change has decreased cool season catchment precipitation reducing river heights in Australia’s southern Murray-Darling Basin

Year

Jun

Jul

Aug

Sept

JJAS count

1874

 

7.92

7.92

7.92

3

1875

7.25

7.32

  

2

1876

   

8.0

1

1887

 

7.86

 

7.22

2

1889

 

7.32

 

7.31

2

1890

     

1891

 

8.78

7.62

6.9

2

1893

 

6.86

8.3

 

2

1894

 

6.71

8.38

8.3

3

1905

  

6.74

 

1

1906

   

7.62

1

1909

   

7.08

1

1916

   

7.43

1

1917

  

7.85

8.1

2

1918

  

6.89

8.1

2

1922

  

8.33

  

1923

 

6.94

7.69

6.7

3

1925

8.15

7.77

 

7.77

3

1926

  

6.81

 

1

1931

8.33

8.83

6.7

 

3

1932

   

7.08

1

1934

   

7.74

1

1936

  

7.39

 

1

1939

   

8.2

1

1949

  

7.56

 

1

1950

  

7.55

 

1

1951

   

6.85

1

1952

8.22

8.56

7.62

 

3

1955

   

8.15

1

1956

8.31

8.99

8.78

7.84

4

1960

  

7.35

6.82

2

1964

  

6.93

7.19

2

1974

 

7.24

7.35

8.99

3

1984

  

7.2

7.26

2

1989

 

6.72

6.8

 

2

1990

 

6.96

7

7.27

3

1991

 

7.73

  

1