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 | -3.58 | l | -1.96 | c | 19.25 | s | 33.15 | d | 49.76 | b | 56.57 | 56.29 | 63.16 | 50.37 | 36.61 | 15.28 | e | 22.23 | a | 38.15 | b | |||||
1960 | 12.90 | a | 12.03 | 6.03 | 35.63 | 45.10 | a | 51.77 | 55.68 | 58.55 | 51.10 | 37.45 | 26.23 | d | 11.72 | b | 33.68 | |||||||||
1961 | 6.53 | a | 17.04 | 24.41 | b | 30.23 | 40.16 | 55.87 | 58.26 | 57.84 | 49.43 | 37.71 | 25.12 | d | 8.97 | 34.30 | ||||||||||
1962 | 3.77 | 7.43 | 18.74 | 32.27 | d | 51.87 | 57.13 | 56.55 | 55.10 | 43.03 | 41.29 | 27.37 | 10.24 | b | 33.73 | |||||||||||
1963 | -6.23 | -1.00 | 23.71 | 35.33 | 41.74 | 55.17 | 57.35 | 52.71 | 46.20 | 45.19 | 26.93 | -0.04 | c | 31.42 | ||||||||||||
1964 | 11.70 | a | 12.45 | 18.73 | a | 35.27 | 49.13 | a | 53.87 | 60.00 | 52.29 | 44.70 | 32.16 | 26.67 | c | 6.68 | 33.64 | |||||||||
1965 | 2.24 | b | 2.61 | 12.57 | a | 32.57 | 48.84 | 51.60 | 55.61 | 53.97 | 46.70 | ----- | z | ----- | z | 22.26 | 32.90 | b | ||||||||
1966 | -4.19 | 6.43 | 24.55 | 30.72 | a | 37.10 | 53.30 | 58.80 | a | 50.77 | 45.29 | f | 35.81 | 25.79 | a | 11.23 | 30.03 | a | ||||||||
1967 | 7.26 | -3.25 | 21.77 | 34.23 | 36.74 | 54.20 | 54.74 | 50.45 | 43.47 | 37.47 | a | 23.50 | 14.32 | 31.24 | ||||||||||||
1968 | 8.32 | 7.62 | 25.84 | 33.80 | 41.84 | 52.97 | 57.81 | 56.26 | 47.60 | 39.19 | 26.83 | 13.96 | e | 34.34 | ||||||||||||
1969 | 1.16 | 7.50 | 12.42 | 30.82 | h | 44.10 | 46.73 | 56.94 | 56.21 | b | ----- | z | ----- | z | 22.50 | 11.93 | a | 28.83 | c | |||||||
1970 | -4.32 | 4.36 | 15.87 | 33.07 | a | 47.06 | 54.70 | 59.68 | 54.55 | ----- | z | ----- | z | 26.20 | 8.32 | 29.95 | b | |||||||||
1971 | -6.93 | d | 5.17 | e | 16.06 | 30.23 | 38.71 | 57.70 | 52.71 | g | 54.00 | h | 45.29 | i | 46.52 | 26.90 | a | 16.19 | 25.62 | c | ||||||
1972 | 0.87 | 5.14 | 18.07 | a | 29.43 | 45.13 | 48.83 | 57.19 | 58.93 | a | 50.57 | 36.19 | 27.37 | 4.71 | j | 34.34 | a | |||||||||
1973 | 12.47 | a | 14.42 | b | 30.90 | 33.92 | e | 42.65 | 56.33 | ----- | z | 60.87 | ----- | z | ----- | z | ----- | z | 8.17 | h | 35.94 | e | ||||
1974 | 8.52 | 6.46 | 26.80 | f | 32.72 | a | 41.03 | 48.93 | 60.48 | 54.29 | 43.03 | 36.97 | ----- | z | 16.52 | 34.90 | b | |||||||||
1975 | 7.74 | 8.86 | 15.10 | 28.97 | 46.16 | 56.17 | 60.10 | 57.17 | a | 42.27 | 37.61 | 27.80 | 15.35 | 33.61 | ||||||||||||
1976 | 1.00 | b | ----- | z | 23.60 | f | 34.14 | a | 40.97 | 56.53 | ----- | z | ----- | z | 45.33 | 29.86 | i | 15.80 | -1.94 | 27.41 | e | |||||
1977 | -11.73 | i | ----- | z | 28.71 | c | 39.20 | 49.68 | 54.07 | 63.39 | 53.03 | 50.40 | 36.19 | d | ----- | z | ----- | z | 46.83 | d | ||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.78 | v | 52.67 | 36.00 | 23.03 | a | 8.16 | 29.97 | h | |||
1979 | -9.21 | c | -4.46 | 20.77 | a | 32.03 | 41.97 | a | 54.03 | a | 57.42 | 57.06 | 48.27 | 35.06 | 25.27 | 14.39 | 31.05 | |||||||||
1980 | 6.77 | 4.24 | 16.29 | c | 33.78 | c | 42.90 | a | 53.41 | a | 60.79 | b | 58.10 | a | 48.55 | a | 31.58 | 24.63 | 10.52 | 32.63 | ||||||
1981 | 6.58 | 10.93 | 21.17 | b | 35.21 | b | 41.16 | 52.70 | g | 57.58 | ----- | z | 44.50 | 33.61 | 26.00 | 10.65 | 28.74 | b | ||||||||
1982 | -7.71 | x | 22.25 | t | 22.81 | j | 30.03 | a | 49.74 | 45.67 | 58.73 | a | 52.86 | c | 46.53 | 34.48 | 24.10 | 19.06 | 40.14 | c | ||||||
1983 | 12.61 | 17.57 | 25.00 | 30.90 | 41.29 | 53.90 | 60.65 | 60.42 | 47.73 | 36.32 | 28.07 | -2.55 | b | 34.33 | ||||||||||||
1984 | 2.77 | 20.11 | a | 15.00 | 35.93 | 41.00 | a | 56.57 | 57.32 | 58.48 | 45.07 | a | 40.65 | 24.33 | 12.19 | 34.12 | ||||||||||
1985 | -2.64 | c | 6.04 | b | 24.34 | b | 40.07 | b | 47.97 | 50.90 | 56.52 | 54.65 | 51.18 | b | 37.96 | e | 19.57 | -4.80 | a | 31.81 | ||||||
1986 | 1.17 | b | 8.54 | 24.96 | d | 36.37 | c | 47.67 | a | 53.69 | a | 61.67 | a | 51.87 | 49.07 | a | 36.23 | a | 21.23 | d | 15.37 | a | 33.99 | |||
1987 | 10.81 | 17.82 | 24.90 | 34.93 | a | 47.16 | 56.83 | a | 63.77 | 57.32 | 48.83 | a | 30.50 | a | 28.57 | 18.30 | a | 36.65 | ||||||||
1988 | -1.24 | b | 1.97 | 22.74 | 32.14 | b | 44.65 | 52.77 | 59.10 | 60.84 | 48.67 | 28.43 | a | 26.48 | a | 11.03 | 32.30 | |||||||||
1989 | 14.52 | 0.81 | a | 16.65 | 30.50 | 44.06 | 52.97 | 59.26 | 56.46 | c | 43.37 | 34.43 | a | 19.71 | b | 1.32 | 31.17 | |||||||||
1990 | 16.26 | 9.57 | 26.97 | 34.93 | 42.13 | 55.53 | 58.90 | a | 57.84 | 50.17 | 33.35 | 27.87 | 4.32 | 34.82 | ||||||||||||
1991 | -1.65 | 13.36 | 24.10 | 37.30 | 51.03 | 58.10 | 58.13 | 56.58 | 45.57 | 34.87 | 16.37 | 14.26 | 34.00 | |||||||||||||
1992 | 14.61 | 20.21 | 23.30 | a | 33.70 | 42.94 | 50.47 | 54.39 | 50.42 | 45.90 | 33.34 | b | 26.13 | 12.03 | 33.95 | |||||||||||
1993 | 4.55 | 6.29 | 18.16 | 29.53 | 46.10 | 52.83 | 59.13 | 58.68 | 43.40 | 33.55 | 23.63 | 16.50 | a | 32.70 | ||||||||||||
1994 | -6.00 | -1.75 | 22.27 | a | 33.23 | 41.58 | 56.53 | 58.29 | 54.28 | b | 52.40 | 38.42 | 28.86 | a | 16.65 | 32.90 | ||||||||||
1995 | 8.61 | 11.85 | a | 22.90 | 29.87 | 43.32 | 56.73 | 60.10 | 65.32 | 44.52 | a | 37.45 | 18.52 | a | 8.38 | b | 33.96 | |||||||||
1996 | -0.71 | 6.03 | 15.19 | 29.60 | 42.23 | 55.47 | 55.97 | 55.19 | 47.66 | a | 35.32 | 18.55 | a | 10.68 | 30.93 | |||||||||||
1997 | 2.19 | 11.93 | 21.71 | 30.47 | 39.03 | b | 54.60 | 58.23 | 53.94 | 47.93 | a | 36.07 | a | 23.80 | 20.30 | a | 33.35 | |||||||||
1998 | 14.68 | 24.25 | 23.26 | 36.50 | 48.70 | a | 54.87 | 59.32 | 59.13 | 49.70 | 39.10 | 30.43 | b | 17.87 | 38.15 | |||||||||||
1999 | 2.00 | 20.54 | 21.29 | 36.97 | 47.68 | 55.87 | 64.13 | a | 56.10 | 45.07 | 33.00 | 27.76 | a | 14.77 | 35.43 | |||||||||||
2000 | 7.48 | 18.14 | 28.55 | 33.17 | 47.10 | 55.33 | 58.94 | 58.84 | 48.93 | 39.16 | 26.25 | b | -1.00 | 35.07 | ||||||||||||
2001 | 8.48 | 7.32 | 19.94 | 38.34 | a | 46.65 | 54.63 | 59.00 | 60.87 | a | 46.80 | 36.50 | a | 35.43 | 21.77 | a | 36.31 | |||||||||
2002 | 17.10 | 18.54 | 18.13 | 35.87 | 42.23 | 58.24 | a | 63.26 | 57.57 | a | 49.77 | 35.13 | 23.80 | 16.55 | 36.35 | |||||||||||
2003 | 5.61 | 2.36 | 21.13 | 32.66 | a | 43.42 | 51.77 | 58.81 | 58.61 | 48.43 | 34.71 | 25.67 | c | 16.10 | 33.27 | |||||||||||
2004 | 4.71 | 10.34 | 29.03 | 33.00 | 44.00 | 52.88 | d | 58.32 | 53.07 | b | 49.77 | 37.40 | a | 29.43 | 13.13 | 34.59 | ||||||||||
2005 | 6.16 | 18.78 | a | 19.53 | a | 35.40 | 42.72 | b | 60.14 | b | 60.10 | 57.03 | a | 50.70 | 38.35 | 25.90 | 10.52 | 35.45 | ||||||||
2006 | 22.32 | 9.14 | 24.87 | a | 36.97 | 47.23 | 54.77 | 61.87 | 59.13 | a | 46.37 | 34.17 | a | 28.47 | 22.16 | 37.29 | ||||||||||
2007 | 14.07 | a | 3.75 | 25.00 | 34.57 | 48.29 | 56.03 | 58.55 | 60.26 | 51.34 | a | 46.52 | 26.72 | a | 9.26 | 36.20 | ||||||||||
2008 | 6.13 | a | 1.34 | 14.23 | 36.17 | 42.37 | a | 57.10 | 59.77 | 56.16 | 50.59 | a | 36.06 | 26.53 | 1.57 | a | 32.34 | |||||||||
2009 | -5.77 | 11.07 | 20.55 | 32.67 | 47.14 | b | 55.87 | 54.77 | 56.87 | 49.47 | 36.48 | 31.87 | 11.37 | a | 33.53 | |||||||||||
2010 | 6.81 | d | 7.96 | 27.13 | 38.93 | o | 46.55 | 57.40 | 62.74 | 61.26 | 48.17 | ----- | z | ----- | z | ----- | z | 39.75 | d | |||||||
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 5.26 | 8.87 | 21.12 | 33.63 | 44.50 | 54.37 | 58.84 | 56.69 | 47.69 | 36.53 | 25.18 | 11.64 | 33.91 | |||||||||||||
S.D. | 7.16 | 6.95 | 5.05 | 2.71 | 3.61 | 2.88 | 2.35 | 3.30 | 2.75 | 3.57 | 4.02 | 6.76 | 1.78 | |||||||||||||
SKEW | 0.02 | 0.20 | -0.51 | 0.19 | -0.01 | -0.95 | 0.34 | 0.12 | -0.24 | 0.85 | -0.56 | -0.64 | 0.29 | |||||||||||||
MAX | 22.32 | 24.25 | 30.90 | 40.07 | 51.87 | 60.14 | 64.13 | 65.32 | 52.67 | 46.52 | 35.43 | 22.26 | 38.15 | |||||||||||||
MIN | -9.21 | -4.46 | 6.03 | 28.97 | 36.74 | 45.67 | 54.39 | 50.42 | 42.27 | 28.43 | 15.28 | -4.80 | 30.93 | |||||||||||||
YRS | 48 | 48 | 47 | 49 | 51 | 50 | 48 | 48 | 47 | 46 | 47 | 48 | 37 |