Annual Rainfall - Lake Cuyamaca

 

Based on Water Year (October-September)
A water year is defined as the calendar year that begins October 1 and ends September 30.

Water Year
(Oct-Sep)		 Actual
Rainfall (inches)		 Normal
Rainfall (inches)		 % of
Normal
1965 27.86 35.40 79
1966 37.48 35.40  106
1967 47.04 35.40  133
1968 28.49 35.40  80
1969 46.85 35.40 132
1970 20.48 35.40  58
1971 30.23 35.40 85
1972 20.98 35.40  59
1973 52.10 35.40  147
1974 23.58 35.40  67
1975 34.79 35.40  98
1976 34.48 35.40  97
1977 25.14 35.40  71
1978 54.80 35.40  155
1979 42.26 35.40 119
1980 72.39 35.40 204
1981 21.80 35.40 62
1982 40.10 35.40 113
1983 74.42 35.40   210
1984 28.44 35.40  80
 1985 33.00 35.40  93
 1986 40.63 35.40 115
 1987 21.67 35.40 61
 1988 31.06 35.40 88
 1989 22.45 35.40 63
 1990 20.17 35.40 57
 1991 34.65 34.58 100
 1992 34.21 34.57 99
 1993 60.46 34.57 175
 1994 32.28 34.57 93
 1995 56.82 34.57 164
 1996 19.87 34.57 57
 1997 27.39 34.57 79
 1998 55.00 34.57 159
 1999 25.52 34.57 74
 2000 19.40 33.03 59
 2001 15.89 35.83 44
 2002 9.46 35.83 26
 2003 34.46 35.83 96
 2004 19.10 35.83  53
 2005 55.38 35.83 155
 2006 23.42 35.83 65
 2007 14..89 35.83 42
 2008 27.42 35.83 77
 2009 19.78 35.83 55
 2010  37.82  35.83 106 
 2011 42.55 33.41 127
2012 24.29 33.41 73
2013 18.16 33.41 54
2014 16.75 33.41 50
2015 21.20 33.41 63
2016 21.67 33.41 65
2017 35.32 33.41 106
2018 12.07 33.41 36

*Normal rainfall is the average of a previous period of multiple years.