Annual Rainfall - Lake Henshaw

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 22.32 27.42 81
1966 27.51 27.42 100
1967 33.80 27.42 123
1968 17.58 27.42  64
1969 44.70 27.42 163
1970 15.05 27.42 55
1971 19.65 27.42  72
1972 15.51 27.42  57
1973 33.84 27.42  123
1974 13.43 27.42 49
1975 24.01 27.42  88
1976 27.42 27.42 100
1977 19.38 27.42  71
1978 48.76 27.42  178
1979 40.61 27.42 148
1980 55.25 27.42 201
1981 19.81 27.42 72
1982 35.35 27.42 129
1983 50.20 27.42  183
1984 20.38 27.42 74
 1985 22.19 27.42 81
 1986 32.09 27.42 117
 1987 18.56 27.42 68
 1988 26.00 27.42 95
 1989 15.43 27.42  56
 1990 16.19 27.42  59
 1991 31.18 26.18 119
 1992 27.32 26.02 105
 1993 55.55 26.02 213
 1994 22.95 26.02 88
 1995 44.17 26.02 170
 1996 14.99 26.02 58
 1997 23.28 26.02 89
 1998 46.43 26.02 178
 1999 15.83 26.02 61
 2000 16.87 26.02 65
 2001 17.51 27.91 63
 2002 7.81 27.91 28
 2003 27.50 27.91 99
 2004 13.71 27.91 49
 2005 46.91 27.91 168
 2006 21.18 27.91 76
 2007 10.13 27.91 36
 2008 29.42 27.91 105
 2009 20.46 27.91 73
 2010 32.42 27.91 116
 2011 36.24 26.69 136
2012 20.49 26.69 77
2013 14.24 26.69 53
2014 12.47 26.69 47
2015 18.03 26.69 68

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