YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 19.47 | m | 4.84 | 4.84 | k | |
1959 | 0.10 | b | 4.96 | 21.77 | 33.53 | 49.30 | a | 59.38 | a | 60.74 | 63.05 | i | 51.47 | 35.61 | 17.00 | 19.45 | 32.12 | a | ||||||||
1960 | 4.68 | 5.41 | 7.45 | 34.77 | 46.52 | 53.63 | 60.23 | a | 62.00 | a | 51.30 | 36.58 | 25.20 | 7.29 | 32.92 | |||||||||||
1961 | 1.58 | 11.89 | 24.26 | 27.87 | 40.84 | 53.61 | b | 57.55 | 58.55 | 48.43 | 37.45 | 22.07 | c | 4.81 | 32.41 | |||||||||||
1962 | -2.87 | a | 3.21 | 16.52 | 29.83 | 50.23 | 54.63 | 57.10 | 56.61 | 45.57 | 40.24 | n | 30.48 | g | 12.45 | 32.33 | b | |||||||||
1963 | -2.97 | 4.14 | 25.13 | 38.03 | 45.23 | 58.13 | 61.32 | 57.74 | 52.41 | a | 47.00 | 29.73 | 1.65 | 34.80 | ||||||||||||
1964 | 10.84 | ----- | z | ----- | z | 35.27 | 49.26 | 56.40 | 63.45 | 56.48 | 49.87 | 38.13 | 26.53 | 3.23 | 38.95 | b | ||||||||||
1965 | -2.87 | 0.82 | 7.84 | 33.40 | 48.61 | 55.60 | 59.61 | 57.45 | 44.83 | 40.39 | 24.97 | 20.39 | 32.59 | |||||||||||||
1966 | -6.97 | 3.32 | 26.03 | b | 32.28 | a | 41.10 | 55.97 | 63.23 | 56.58 | 43.42 | r | 37.06 | 20.50 | 10.00 | g | 32.91 | b | ||||||||
1967 | ----- | z | ----- | z | ----- | z | 33.77 | 40.48 | 54.77 | 57.58 | 54.81 | 47.20 | 35.68 | 22.97 | 13.29 | 40.06 | c | |||||||||
1968 | 3.23 | 2.07 | 25.52 | 36.23 | 42.10 | 55.30 | 59.06 | 58.75 | c | 49.87 | 40.90 | 26.13 | 8.45 | 33.97 | ||||||||||||
1969 | -1.84 | 8.29 | 12.84 | 36.77 | 47.68 | 49.57 | 59.94 | 59.39 | 49.93 | 35.58 | 23.97 | 12.16 | 32.86 | |||||||||||||
1970 | -5.35 | 2.00 | 12.77 | 31.73 | 43.94 | 57.87 | 60.84 | 58.58 | 49.40 | 38.58 | 23.47 | 7.16 | 31.75 | |||||||||||||
1971 | -4.35 | 6.89 | 17.55 | 33.37 | 41.45 | 59.23 | 56.81 | 56.42 | 51.17 | 43.26 | 25.37 | 8.97 | 33.01 | |||||||||||||
1972 | -3.00 | -9.57 | v | ----- | z | ----- | z | 50.16 | 54.40 | 59.16 | 60.23 | 48.67 | 35.68 | 26.70 | 2.87 | 37.21 | c | |||||||||
1973 | 7.81 | 12.39 | 31.42 | 34.57 | 44.61 | 57.80 | 61.35 | 62.77 | 50.47 | 44.77 | 26.23 | 9.65 | 36.99 | |||||||||||||
1974 | 2.13 | 5.07 | 20.10 | 35.93 | 44.00 | 54.03 | 64.29 | 56.42 | 44.03 | 38.52 | 26.93 | 15.81 | 33.94 | |||||||||||||
1975 | 4.29 | 5.79 | 12.32 | 30.10 | 48.90 | 57.50 | 63.39 | 59.29 | 46.23 | 39.48 | 26.17 | 10.68 | 33.68 | |||||||||||||
1976 | -1.48 | 16.10 | 19.90 | 38.10 | 44.35 | 57.73 | 60.87 | 59.39 | 47.43 | 31.74 | 17.30 | -0.19 | 32.60 | |||||||||||||
1977 | -10.13 | 12.07 | 27.00 | 40.70 | 54.19 | 56.83 | 62.55 | 55.32 | 51.07 | 37.68 | 23.10 | 6.55 | 34.74 | |||||||||||||
1978 | -5.16 | -0.82 | 17.87 | 33.80 | 48.71 | 55.50 | 60.32 | 59.13 | 54.63 | 38.84 | 21.67 | 2.77 | 32.27 | |||||||||||||
1979 | -9.23 | -2.96 | 19.00 | 31.37 | 42.13 | 54.73 | 60.81 | 57.94 | 51.10 | 37.00 | 23.03 | 17.19 | 31.84 | |||||||||||||
1980 | 4.42 | 4.38 | 14.61 | 35.97 | 48.48 | 55.50 | 61.55 | 59.52 | 48.69 | a | 35.19 | 26.70 | 10.81 | 33.82 | ||||||||||||
1981 | 6.35 | 13.04 | 25.81 | 38.10 | 45.42 | 56.00 | 61.35 | 59.77 | 48.80 | 37.65 | 28.17 | 8.81 | 35.77 | |||||||||||||
1982 | -10.32 | 5.07 | 19.39 | 31.83 | 50.48 | 50.90 | 62.68 | 58.61 | 50.33 | 40.26 | 20.30 | 17.00 | 33.04 | |||||||||||||
1983 | 8.45 | 18.50 | 24.87 | 31.60 | 42.29 | 55.93 | 64.87 | 64.06 | 52.00 | 40.00 | 28.43 | -6.42 | 35.38 | |||||||||||||
1984 | 1.00 | 19.03 | 13.80 | a | 35.30 | 44.55 | 58.33 | 60.42 | 61.81 | 45.57 | 41.77 | a | 24.43 | 7.58 | 34.47 | |||||||||||
1985 | -0.93 | a | 5.18 | 26.19 | 38.77 | 50.32 | 52.47 | 59.94 | 55.94 | 50.17 | 36.16 | 15.57 | -2.94 | 32.24 | ||||||||||||
1986 | 8.16 | 6.14 | 23.90 | 38.13 | 47.81 | 57.33 | 63.68 | 55.77 | 50.53 | 38.32 | 19.23 | 14.77 | a | 35.32 | ||||||||||||
1987 | 12.39 | 21.54 | 26.10 | u | 44.31 | q | 51.03 | 58.90 | 64.03 | 57.90 | 50.27 | 34.29 | 28.90 | 16.73 | a | 39.60 | b | |||||||||
1988 | -0.94 | 2.28 | 22.68 | 33.67 | 51.16 | 60.07 | 63.26 | 61.42 | 49.90 | 32.68 | 23.10 | 9.84 | 34.09 | |||||||||||||
1989 | 8.71 | -3.57 | 16.10 | 32.63 | 44.55 | 54.57 | 62.84 | 57.97 | 48.50 | 37.35 | 18.43 | 0.77 | 31.57 | |||||||||||||
1990 | 14.77 | 10.41 | a | 23.87 | 33.67 | 43.03 | 57.43 | 59.55 | 59.19 | 52.24 | a | 34.73 | a | 25.63 | 4.97 | 34.96 | ||||||||||
1991 | 1.77 | a | 10.61 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.84 | 47.33 | 34.32 | 16.33 | 7.16 | 25.34 | e | |||||
1992 | 10.29 | 17.14 | a | 21.42 | 31.13 | 46.59 | b | 52.53 | 53.72 | b | 53.06 | 44.31 | a | 33.61 | 24.40 | 11.23 | 33.29 | |||||||||
1993 | -2.58 | 6.19 | a | 15.29 | 31.40 | 46.00 | 54.21 | a | 59.61 | 58.58 | 41.59 | a | 32.84 | 21.03 | 11.19 | 31.28 | ||||||||||
1994 | ----- | z | -3.44 | a | 21.77 | a | 30.93 | a | 47.17 | a | 57.55 | a | 58.84 | 55.66 | b | 52.82 | b | 41.61 | 27.23 | 10.37 | d | 36.41 | a | |||
1995 | 6.13 | 3.82 | 21.58 | 30.36 | b | 45.04 | c | 59.90 | 60.07 | a | 61.83 | a | 45.67 | 36.73 | a | 17.41 | a | 8.35 | 33.07 | |||||||
1996 | -5.53 | a | 3.00 | a | 11.29 | 28.27 | 44.26 | 57.37 | 58.42 | 57.41 | b | 49.15 | c | 35.68 | 16.70 | 2.14 | b | 29.85 | ||||||||
1997 | -4.35 | 6.39 | 17.29 | c | 30.03 | 39.30 | a | 58.31 | a | 60.97 | a | 57.17 | a | 50.61 | b | 36.94 | 19.97 | 19.97 | 32.71 | |||||||
1998 | 8.13 | 23.20 | c | 20.84 | 37.43 | 50.87 | 54.83 | 61.58 | 60.03 | b | 50.24 | a | 40.52 | 27.45 | a | 13.35 | 37.37 | |||||||||
1999 | 0.24 | b | 16.32 | 22.54 | e | 36.38 | a | 48.97 | a | 55.39 | b | 63.23 | 58.47 | a | 47.20 | 35.07 | a | 29.17 | 14.36 | c | 35.61 | |||||
2000 | 1.27 | a | 14.28 | 27.35 | 32.45 | a | 48.58 | 53.28 | a | 61.10 | b | 60.97 | a | 45.38 | a | 40.03 | 23.64 | b | -2.70 | a | 33.80 | |||||
2001 | 7.21 | c | -4.46 | 14.37 | d | 34.57 | 47.73 | e | 57.59 | c | 60.46 | c | 60.62 | b | 49.14 | a | 36.76 | b | 33.64 | b | 17.71 | 34.61 | ||||
2002 | 11.24 | f | 15.00 | a | ----- | z | ----- | z | ----- | z | 58.48 | a | 65.81 | 59.86 | c | 50.93 | a | 33.00 | g | 23.10 | a | 15.50 | a | 41.24 | e | |
2003 | 3.07 | b | ----- | z | ----- | z | ----- | z | ----- | z | 56.93 | c | 61.86 | b | 64.00 | d | 49.92 | d | 40.39 | 22.87 | 15.30 | d | 39.29 | d | ||
2004 | 1.52 | 12.82 | a | 25.55 | 36.20 | 44.44 | d | 54.60 | 61.03 | 54.25 | k | 55.08 | f | 40.69 | e | 28.40 | 12.04 | c | 31.73 | b | ||||||
2005 | 5.68 | 16.14 | 20.74 | 42.23 | h | 46.16 | 61.77 | 65.07 | c | 60.50 | a | 54.62 | d | 41.97 | 25.65 | d | 6.09 | h | 39.83 | b | ||||||
2006 | 20.00 | 6.25 | 24.52 | 41.59 | a | 50.19 | 58.33 | 66.35 | 62.07 | a | 47.37 | k | 34.19 | 25.50 | 15.75 | k | 38.90 | b | ||||||||
2007 | 5.70 | h | 0.74 | a | 19.14 | x | 33.63 | 49.59 | b | 57.71 | w | 61.39 | 58.87 | 48.47 | 41.68 | 24.10 | 4.87 | 35.93 | c | |||||||
2008 | -0.32 | 1.28 | 14.58 | 30.87 | 43.03 | 56.23 | 61.13 | 58.03 | 50.90 | 37.73 | a | 25.70 | 0.67 | a | 31.65 | |||||||||||
2009 | -6.80 | a | 7.04 | 18.97 | 34.67 | 44.42 | 54.79 | a | 57.32 | 56.65 | 53.57 | 34.52 | 31.23 | 8.45 | 32.90 | |||||||||||
2010 | 2.74 | 5.68 | 26.10 | 39.90 | 46.42 | 56.27 | 62.55 | b | 61.16 | 48.30 | 39.90 | 24.53 | 8.00 | 35.13 | ||||||||||||
2011 | -0.03 | 5.43 | 15.13 | 35.17 | 46.52 | 55.90 | 65.97 | 60.48 | 50.48 | a | 43.29 | 26.43 | 17.61 | 35.20 | ||||||||||||
2012 | 12.48 | 17.86 | 36.48 | 38.73 | 49.48 | 57.57 | 64.94 | 56.17 | b | 45.17 | 33.97 | 23.47 | 10.45 | 37.23 | ||||||||||||
2013 | 3.61 | 5.71 | 13.65 | 21.00 | v | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 7.66 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.86 | 7.64 | 20.13 | 34.27 | 46.42 | 56.19 | 61.24 | 58.79 | 49.17 | 37.90 | 24.07 | 9.18 | 33.71 | |||||||||||||
S.D. | 6.56 | 6.76 | 6.01 | 3.24 | 3.35 | 2.35 | 2.56 | 2.35 | 2.77 | 3.26 | 3.95 | 6.29 | 1.70 | |||||||||||||
SKEW | 0.36 | 0.39 | 0.09 | 0.21 | -0.10 | -0.32 | -0.25 | 0.10 | -0.44 | 0.45 | -0.27 | -0.27 | 0.24 | |||||||||||||
MAX | 20.00 | 23.20 | 36.48 | 41.59 | 54.19 | 61.77 | 66.35 | 64.06 | 54.63 | 47.00 | 33.64 | 20.39 | 37.37 | |||||||||||||
MIN | -10.32 | -4.46 | 7.45 | 27.87 | 39.30 | 49.57 | 53.72 | 53.06 | 41.59 | 31.74 | 15.57 | -6.42 | 29.85 | |||||||||||||
YRS | 51 | 51 | 47 | 48 | 51 | 52 | 53 | 52 | 51 | 52 | 53 | 52 | 39 |