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Department of Water and Environmental Regulation HYANN V88 Output 20/06/2025
Site 616011 Swan River - Walyunga
Variable 151.00 Stream Discharge Volume in Megalitres
Year Annual Days Rank
Total Missing
(Megalitres)
-----------------------------------------------
1970 189500 134 29
1971 137300 11 38
1972 150700 4 34
1973 326100 61 16
1974 1270000 1
1975 311400 18
1976 144000 36
1977 77300 51
1978 304400 20
1979 95180 48
1980 121700 42
1981 711400 9 3
1982 200700 3 28
1983 959300 2
1984 313200 34 17
1985 121500 43
1986 356100 14
1987 210000 27
1988 329500 15
1989 228100 24
1990 424000 11
1991 371100 13
1992 623600 5
1993 226700 25
1994 182300 31
1995 593400 7
1996 682200 4
1997 174000 33
1998 188400 30
1999 563800 8
2000 548500 9
2001 86130 49
2002 80980 50
2003 267100 22
2004 111000 45
2005 292000 21
2006 107400 46
2007 140100 37
2008 181900 32
2009 246100 23
2010 23790 55
2011 135000 39
2012 35050 54
2013 150100 35
2014 118000 44
2015 45270 52
2016 222100 26
2017 452600 10
2018 310600 19
2019 102800 47
2020 39540 53
2021 605600 6
2022 423900 12
2023 125400 40
2024 125000 41
2025 0.0 196 56
Total 15560000 452
Minimum 0.0
Maximum 1270000
Mean 277900
Median 195100