Seasonal Statistics for North Shore: SEPTEMBER to MAY 1968 - 2020 Count of Days Per Season of Surf by Size Category Note: 1) Year denotes year of start of season, eg, 1968=1968-1969 2) Height in Hawaii scale, H1/10th, upper end of range 3) Goddard-Caldwell database (Caldwell, JCR, 2005) (3-4 Hs) (5-7 Hs) (8-12 Hs) ( 13-19 Hs) (20+ Hs) year # days % # days % # days % # days % # days % ----- ------ --- ------ --- ------ --- ------ --- ------ --- 1968 86 32 97 36 55 20 12 4 6 2 1969 74 27 73 27 54 20 20 7 10 4 1970 97 36 84 31 36 13 5 2 5 2 1971 91 33 69 25 54 20 14 5 2 1 1972 80 29 86 32 53 19 20 7 6 2 1973 98 36 76 28 53 19 16 6 4 1 1974 94 34 73 27 54 20 19 7 2 1 1975 98 36 68 25 54 20 17 6 2 1 1976 84 31 66 24 58 21 20 7 6 2 1977 83 30 77 28 52 19 25 9 9 3 1978 104 38 81 30 60 22 17 6 0 0 1979 85 31 87 32 73 27 17 6 5 2 1980 68 25 76 28 75 27 25 9 2 1 1981 91 33 92 34 45 16 14 5 0 0 1982 91 33 66 24 51 19 37 14 10 4 1983 89 32 82 30 55 20 19 7 3 1 1984 110 40 79 29 38 14 11 4 6 2 1985 80 29 70 26 34 12 21 8 13 5 1986 84 31 68 25 61 22 20 7 12 4 1987 63 23 77 28 62 23 14 5 4 1 1988 93 34 84 31 29 11 9 3 2 1 1989 67 25 81 30 62 23 13 5 2 1 1990 72 26 77 28 55 20 11 4 1 0 1991 68 25 78 28 68 25 23 8 2 1 1992 72 26 79 29 72 26 10 4 2 1 1993 98 36 77 28 48 18 14 5 1 0 1994 95 35 62 23 52 19 15 5 0 0 1995 72 26 70 26 64 23 17 6 7 3 1996 88 32 72 26 46 17 19 7 5 2 1997 72 26 68 25 60 22 18 7 10 4 1998 92 34 68 25 41 15 18 7 5 2 1999 72 26 79 29 47 17 16 6 1 0 2000 80 29 55 20 61 22 18 7 4 1 2001 78 29 79 29 43 16 16 6 4 1 2002 60 22 66 24 54 20 26 10 11 4 2003 78 28 73 27 56 20 19 7 2 1 2004 91 33 59 22 56 21 11 4 8 3 2005 90 33 60 22 46 17 15 5 3 1 2006 95 35 72 26 39 14 14 5 3 1 2007 90 33 77 28 33 12 10 4 2 1 2008 102 37 68 25 32 12 14 5 2 1 2009 78 29 70 26 57 21 24 9 6 2 2010 81 30 62 23 49 18 10 4 3 1 2011 93 34 56 20 38 14 12 4 3 1 2012 96 35 57 21 41 15 22 8 1 0 2013 90 33 65 24 52 19 14 5 7 3 2014 89 33 53 19 71 26 15 5 2 1 2015 90 33 51 19 48 18 24 9 12 4 2016 107 39 60 22 46 17 14 5 4 1 2017 97 36 62 23 53 19 11 4 3 1 2018 85 31 68 25 46 17 14 5 5 2 2019 101 37 61 22 45 16 6 2 4 1 2020 104 38 53 19 39 14 14 5 2 1 MEAN 87 32 71 26 51 19 16 6 4 2 SD 12 10 11 6 3