YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.88 | r | 62.25 | 45.50 | g | 26.50 | d | 29.90 | 39.55 | i | ||
1960 | 19.53 | b | 20.00 | a | 22.98 | a | 49.05 | 58.37 | 64.23 | 69.90 | b | 71.83 | a | 63.08 | 49.81 | 37.85 | 19.02 | c | 45.47 | |||||||
1961 | 18.12 | g | 25.50 | b | 34.65 | 41.27 | 56.50 | 67.53 | a | 69.05 | b | 70.37 | 60.79 | a | 51.58 | 34.82 | 18.05 | 48.19 | a | |||||||
1962 | 12.70 | h | 17.07 | 28.52 | 44.98 | a | 63.68 | 64.92 | 67.66 | 68.06 | 57.42 | 52.50 | a | 36.52 | 20.31 | d | 47.42 | a | ||||||||
1963 | 5.29 | 13.41 | 33.88 | a | 48.50 | 55.60 | 68.33 | 71.11 | 66.35 | ----- | z | 57.83 | d | 39.05 | 11.13 | 42.77 | a | |||||||||
1964 | 20.91 | d | 23.86 | 28.24 | 47.55 | 62.00 | 67.08 | 74.26 | 67.24 | 59.17 | 46.32 | 32.68 | e | 15.98 | 45.44 | |||||||||||
1965 | 11.73 | 14.96 | 23.23 | 43.75 | 62.42 | 65.70 | 69.89 | 67.11 | 56.71 | a | 51.32 | 35.68 | 30.47 | 44.41 | ||||||||||||
1966 | 6.52 | 17.79 | 36.61 | 43.58 | 54.37 | 68.78 | 73.47 | a | 67.77 | 60.17 | 49.60 | 35.18 | 21.53 | 44.61 | ||||||||||||
1967 | 17.73 | a | 11.75 | 32.37 | 48.25 | 53.39 | 67.28 | 68.08 | a | 65.55 | 58.90 | 48.31 | ----- | z | 22.05 | a | 44.88 | a | ||||||||
1968 | 15.19 | ----- | z | 39.19 | 48.88 | 53.32 | 66.17 | 68.95 | 69.95 | 60.50 | 51.88 | b | 34.38 | 19.69 | 48.01 | a | ||||||||||
1969 | 9.98 | 17.88 | 22.89 | 48.75 | ----- | z | 60.17 | a | 71.61 | 71.82 | a | 61.00 | 47.21 | 34.92 | 22.90 | 42.65 | a | |||||||||
1970 | 5.50 | 14.86 | 26.00 | 47.92 | 59.70 | a | 71.79 | i | ----- | z | 68.24 | 60.33 | a | 48.97 | 33.08 | 18.23 | 38.28 | b | ||||||||
1971 | 4.78 | b | 16.31 | a | 27.78 | a | ----- | z | 52.63 | 72.33 | 68.58 | 69.61 | 63.68 | 57.66 | 35.77 | 22.82 | i | 46.91 | b | |||||||
1972 | 9.79 | 13.82 | a | 27.48 | a | 40.23 | 60.53 | 65.07 | 67.77 | 71.82 | n | 59.24 | a | 45.98 | a | 33.17 | 15.07 | h | 42.31 | b | ||||||
1973 | 17.94 | 23.32 | c | 39.89 | 44.46 | c | 54.55 | 68.88 | 72.76 | 71.96 | c | 57.64 | a | 55.31 | 35.03 | a | 17.11 | c | 46.57 | |||||||
1974 | 13.96 | e | 17.68 | c | 33.30 | a | 46.86 | h | 55.17 | b | 62.70 | 74.95 | 66.14 | i | 54.40 | 48.02 | f | 33.97 | a | 25.66 | 41.31 | c | ||||
1975 | 17.39 | 19.34 | 24.09 | b | 40.98 | 61.11 | 66.45 | 73.85 | 69.90 | g | 56.33 | 51.98 | c | 37.52 | 23.50 | 42.96 | a | |||||||||
1976 | 12.31 | 27.41 | 33.16 | c | 48.32 | 53.79 | 67.26 | e | 71.42 | ----- | z | 57.36 | e | 43.33 | h | 24.33 | d | 10.10 | b | 40.55 | b | |||||
1977 | -0.57 | a | 20.80 | ----- | z | 54.53 | 65.67 | a | 67.18 | 74.44 | e | ----- | z | 60.45 | b | 45.65 | a | 32.22 | a | 17.00 | b | 43.74 | b | |||
1978 | 3.81 | 7.09 | 30.05 | 45.60 | 58.77 | 65.76 | c | 69.60 | 70.40 | 64.60 | 46.55 | b | 30.31 | c | 15.72 | a | 42.36 | |||||||||
1979 | 0.08 | a | 9.46 | 31.15 | 43.71 | a | 55.43 | a | 66.41 | a | 70.73 | 68.16 | 62.08 | f | 46.02 | c | 33.64 | a | 27.61 | 41.13 | a | |||||
1980 | 17.23 | 16.46 | c | 26.62 | c | 48.95 | 62.82 | a | 67.62 | 75.60 | 68.05 | b | 59.43 | 44.36 | c | 35.17 | 21.21 | 45.29 | ||||||||
1981 | 19.57 | d | 24.12 | 35.47 | 50.11 | c | 54.76 | 67.03 | 70.35 | 68.39 | 57.81 | a | 45.15 | 37.70 | 19.24 | 45.81 | ||||||||||
1982 | 3.96 | d | 18.61 | a | 30.62 | b | 42.83 | 63.73 | 62.68 | 74.15 | 68.95 | 58.33 | 49.45 | 33.93 | 27.47 | b | 44.56 | |||||||||
1983 | 21.47 | b | 26.57 | 34.27 | 41.77 | 53.63 | a | 69.33 | 75.98 | a | 73.65 | a | 61.33 | 49.33 | a | 34.98 | d | 7.20 | c | 45.79 | ||||||
1984 | 14.48 | c | 29.70 | a | 26.00 | 46.05 | 55.42 | 67.67 | a | 68.45 | 75.29 | 59.20 | 50.81 | b | 29.42 | 20.70 | d | 45.27 | ||||||||
1985 | 8.45 | b | 18.18 | c | 37.98 | b | 51.98 | 61.37 | a | 62.66 | a | 68.15 | 63.83 | a | 56.72 | a | 48.95 | b | 28.41 | b | 6.63 | e | 42.78 | |||
1986 | 17.67 | a | 18.79 | 37.10 | a | 50.00 | 58.80 | a | 68.95 | 72.94 | 62.18 | 57.60 | 47.07 | a | 27.48 | 21.45 | c | 45.00 | ||||||||
1987 | 22.05 | b | 30.17 | a | 38.60 | 52.32 | b | 61.88 | b | 67.91 | a | 72.72 | b | 68.75 | a | 60.45 | 41.60 | 36.69 | a | 25.93 | a | 48.26 | ||||
1988 | 12.24 | f | 16.44 | c | 35.59 | b | 45.17 | d | 62.87 | a | 71.12 | a | 73.29 | 72.16 | 61.78 | a | 43.47 | b | 35.97 | a | 23.22 | a | 49.19 | a | ||
1989 | 25.47 | 13.77 | 29.94 | 45.97 | 56.00 | a | 65.68 | 72.89 | 69.08 | a | 58.93 | b | 50.58 | a | 30.82 | b | 11.23 | a | 44.20 | |||||||
1990 | 27.39 | 24.41 | 37.77 | 48.28 | 55.03 | 67.33 | 70.50 | 68.81 | 62.90 | 48.13 | 40.02 | 17.03 | 47.30 | |||||||||||||
1991 | 11.23 | 24.30 | 35.42 | a | 49.67 | a | 61.94 | 71.75 | 70.56 | 68.68 | 59.12 | 48.67 | a | 26.83 | a | 21.70 | a | 45.82 | ||||||||
1992 | 24.67 | a | 29.79 | 33.26 | 44.33 | a | 58.02 | 64.12 | 65.18 | 64.68 | 59.03 | 45.97 | b | 32.85 | 24.45 | 45.53 | ||||||||||
1993 | 16.03 | a | 18.61 | 30.90 | 43.17 | a | 59.00 | 64.20 | 68.79 | 71.31 | b | 55.69 | a | 46.65 | a | 32.05 | a | ----- | z | 46.04 | a | |||||
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.72 | 44.79 | 34.63 | 26.93 | a | 42.52 | h | |||
2003 | 16.79 | 18.50 | a | 33.29 | 47.87 | 57.02 | 66.17 | 70.77 | 72.55 | b | 62.03 | a | 49.83 | a | 34.65 | 26.77 | 46.35 | |||||||||
2004 | 14.32 | 23.84 | 36.50 | b | 48.30 | b | 57.76 | 65.20 | b | 69.60 | a | 65.10 | b | 65.30 | 50.90 | 38.16 | a | 23.72 | a | 46.56 | ||||||
2005 | 18.03 | b | 28.61 | a | 32.16 | 51.84 | a | 56.00 | 72.26 | a | 73.71 | 69.47 | a | 65.22 | 52.47 | 37.12 | 18.76 | 47.97 | ||||||||
2006 | 31.66 | 22.25 | 33.97 | 52.90 | 59.03 | a | 67.48 | 75.35 | 70.81 | 58.42 | 46.37 | 38.07 | 29.95 | 48.86 | ||||||||||||
2007 | 22.17 | a | 12.59 | a | 38.98 | 47.05 | 63.55 | 69.76 | a | 71.82 | 70.89 | 64.26 | a | 55.57 | a | 35.40 | 18.27 | 47.53 | ||||||||
2008 | 14.15 | 15.05 | 29.98 | 46.88 | 55.87 | a | 67.43 | a | 71.37 | 68.07 | a | 62.92 | 49.74 | 35.37 | 14.66 | 44.29 | ||||||||||
2009 | 7.69 | 23.41 | 34.94 | 47.42 | 58.21 | 66.52 | 66.53 | 67.61 | 63.52 | a | 44.82 | 42.52 | 19.50 | a | 45.22 | |||||||||||
2010 | 14.11 | 20.48 | 40.68 | 54.31 | a | 59.94 | 68.17 | 73.97 | 74.12 | a | 60.93 | 51.89 | 36.77 | 16.37 | 47.64 | |||||||||||
2011 | 13.56 | 20.43 | 32.44 | 47.21 | a | 57.83 | a | 68.53 | 76.06 | 70.76 | 60.13 | 51.53 | 40.07 | a | 28.26 | 47.23 | ||||||||||
2012 | 24.47 | 28.74 | 51.23 | 49.90 | 63.06 | 70.93 | 79.61 | 69.58 | 60.82 | 47.28 | a | 37.83 | 25.48 | a | 50.75 | |||||||||||
2013 | 19.98 | 21.04 | 26.61 | 41.67 | 58.97 | a | 67.42 | 72.05 | a | 70.45 | 65.65 | 49.10 | 33.87 | 14.87 | 45.14 | |||||||||||
2014 | 9.34 | 8.36 | 27.90 | 45.40 | 59.10 | 70.15 | 68.50 | 71.13 | 62.48 | a | 48.82 | ----- | z | ----- | z | 47.12 | b | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.60 | 19.68 | 32.53 | 47.08 | 58.41 | 67.12 | 71.49 | 69.24 | 60.39 | 49.06 | 34.42 | 20.39 | 45.93 | |||||||||||||
S.D. | 7.40 | 5.82 | 5.60 | 3.56 | 3.44 | 2.60 | 2.96 | 2.74 | 2.73 | 3.53 | 3.76 | 5.89 | 1.78 | |||||||||||||
SKEW | -0.04 | -0.03 | 0.56 | 0.06 | 0.17 | -0.18 | 0.27 | -0.26 | 0.07 | 0.48 | -0.63 | -0.36 | 0.48 | |||||||||||||
MAX | 31.66 | 30.17 | 51.23 | 54.53 | 65.67 | 72.33 | 79.61 | 75.29 | 65.65 | 57.83 | 42.52 | 30.47 | 50.75 | |||||||||||||
MIN | -0.57 | 7.09 | 22.89 | 40.23 | 52.63 | 60.17 | 65.18 | 62.18 | 54.40 | 41.60 | 24.33 | 6.63 | 42.36 | |||||||||||||
YRS | 43 | 45 | 45 | 44 | 45 | 45 | 45 | 41 | 46 | 45 | 46 | 44 | 29 |