YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 56.97 | 54.42 | 48.24 | 25.10 | 8.97 | b | 38.74 | g | ||||
1951 | 9.46 | c | 11.66 | 19.48 | 36.73 | 55.76 | 58.20 | 64.02 | 59.92 | 51.88 | 45.84 | 20.52 | 14.29 | b | 37.31 | |||||||||||
1952 | 13.52 | j | 18.24 | 20.21 | 41.38 | 51.24 | 62.63 | 66.05 | 61.90 | a | 55.82 | 38.42 | 32.32 | 21.40 | 42.69 | a | ||||||||||
1953 | 15.66 | 11.54 | 25.39 | 35.85 | 52.34 | 61.83 | 63.19 | 64.37 | 55.42 | 50.05 | 34.17 | 18.98 | e | 40.73 | ||||||||||||
1954 | 8.65 | 25.07 | 22.06 | 42.28 | 47.48 | 65.55 | a | 65.76 | 62.71 | 54.37 | 44.63 | 33.80 | 19.00 | 40.95 | ||||||||||||
1955 | 10.34 | 12.71 | b | 22.00 | 48.13 | 57.89 | 62.07 | 71.76 | 68.81 | 55.85 | 47.10 | 24.77 | 12.27 | 41.14 | ||||||||||||
1956 | 13.37 | 12.81 | 21.08 | 37.70 | 52.31 | 65.00 | 63.21 | 64.10 | 53.12 | 51.97 | 30.57 | 19.90 | 40.43 | |||||||||||||
1957 | 5.71 | 16.57 | 25.44 | 42.15 | 53.92 | 63.00 | 69.11 | 64.68 | 53.78 | 45.19 | 30.03 | 18.65 | 40.69 | |||||||||||||
1958 | 17.47 | 12.20 | a | 26.61 | 42.77 | 53.29 | 57.98 | 65.18 | 64.63 | a | 56.72 | 47.29 | 32.38 | 8.94 | 40.46 | |||||||||||
1959 | 5.06 | 11.11 | 25.27 | 41.60 | 58.73 | 64.83 | 66.65 | 68.47 | 57.72 | 41.90 | 21.52 | 25.21 | 40.67 | |||||||||||||
1960 | 15.63 | a | 16.00 | a | 16.34 | 41.90 | 53.48 | a | 60.53 | 65.02 | 66.05 | 57.15 | 46.18 | 33.80 | 15.08 | 40.60 | ||||||||||
1961 | 11.13 | 21.96 | 29.65 | 38.08 | 51.66 | 64.00 | 66.16 | 65.82 | 56.68 | 48.40 | 29.72 | 15.88 | b | 41.60 | ||||||||||||
1962 | 7.42 | 10.55 | 27.37 | 39.42 | 58.03 | 62.53 | 64.35 | 64.24 | 52.90 | 47.47 | 32.15 | 15.52 | 40.16 | |||||||||||||
1963 | 2.19 | 6.96 | 28.18 | 43.92 | 52.08 | 64.98 | 68.76 | 62.97 | 56.73 | 55.18 | 36.45 | 10.02 | 40.70 | |||||||||||||
1964 | 18.05 | 16.93 | 23.85 | 41.90 | 58.53 | 62.58 | 68.50 | 60.60 | 53.98 | 43.53 | 33.18 | 12.03 | 41.14 | |||||||||||||
1965 | 8.18 | 10.12 | 17.92 | 37.83 | 56.84 | 60.93 | 63.85 | 62.21 | 50.03 | 45.39 | 30.07 | 22.47 | 38.82 | |||||||||||||
1966 | 4.02 | 14.86 | 28.16 | 36.15 | 48.19 | 64.68 | 70.24 | 62.16 | 54.43 | 43.90 | 28.72 | a | 16.26 | 39.32 | ||||||||||||
1967 | 14.15 | 6.45 | 25.50 | 40.32 | 47.17 | a | 62.87 | 64.26 | 60.05 | 57.15 | t | 43.56 | 26.83 | 17.61 | 37.16 | a | ||||||||||
1968 | 10.97 | 9.86 | a | 32.58 | 43.65 | 51.08 | 61.90 | a | 66.13 | 64.58 | 56.85 | 48.02 | 30.78 | 15.71 | 41.01 | |||||||||||
1969 | 12.60 | 16.86 | 20.35 | 42.95 | 54.95 | 54.78 | 65.18 | c | 67.79 | b | 55.41 | b | 41.48 | 29.25 | 17.44 | 39.92 | ||||||||||
1970 | 5.59 | b | 11.93 | 21.79 | 42.53 | 52.43 | c | 65.07 | b | 69.78 | b | 65.55 | b | 55.85 | c | 47.97 | 29.45 | a | 16.08 | 40.33 | ||||||
1971 | 4.44 | 13.86 | 22.21 | 39.13 | 50.72 | a | 66.66 | a | 63.89 | 62.55 | 57.97 | 51.77 | 30.40 | 18.03 | 40.13 | |||||||||||
1972 | 5.29 | 9.69 | 21.61 | 34.63 | 56.88 | a | 59.77 | 63.95 | 63.35 | 52.70 | 38.84 | 28.65 | 11.13 | a | 37.21 | |||||||||||
1973 | 11.98 | a | 14.23 | 34.05 | 37.78 | 47.11 | 62.00 | 65.23 | 64.31 | 54.52 | a | 49.71 | 29.47 | 14.55 | 40.41 | |||||||||||
1974 | 8.63 | 7.61 | 23.53 | 38.40 | 47.85 | 57.23 | 66.31 | 61.27 | 48.43 | 42.23 | 31.43 | 19.94 | 37.74 | |||||||||||||
1975 | 12.18 | 13.45 | 19.21 | 32.32 | 55.74 | 60.50 | 66.77 | 63.06 | 49.98 | 46.50 | a | 34.55 | 14.69 | 39.08 | ||||||||||||
1976 | 5.89 | 18.81 | 21.40 | 41.15 | 48.10 | a | 63.48 | 65.48 | 61.84 | 51.73 | 37.97 | 21.05 | 4.39 | 36.77 | ||||||||||||
1977 | -2.10 | 13.45 | 29.58 | 41.91 | a | 60.39 | 58.41 | a | 66.63 | 57.76 | 54.17 | 43.06 | 29.33 | 13.44 | 38.84 | |||||||||||
1978 | 7.03 | 6.59 | 20.44 | 36.25 | 54.32 | 58.90 | 62.55 | 63.00 | 57.15 | 42.66 | 27.70 | 10.34 | 37.24 | |||||||||||||
1979 | -0.26 | 3.95 | 23.45 | 35.72 | 47.05 | 59.10 | 64.50 | 60.87 | 54.90 | 40.63 | a | 27.95 | 19.98 | 36.49 | ||||||||||||
1980 | 10.27 | 8.95 | 19.65 | 40.27 | 56.02 | 59.10 | ----- | z | 63.50 | 52.80 | 39.31 | 30.48 | 12.74 | 35.73 | a | |||||||||||
1981 | 9.35 | 17.57 | 28.13 | 41.97 | 51.21 | 60.83 | 64.90 | 64.34 | 52.73 | 40.00 | 34.20 | 15.47 | 40.06 | |||||||||||||
1982 | -0.82 | f | 9.23 | 22.73 | 34.42 | 57.97 | a | 55.50 | 66.55 | 60.62 | a | 52.88 | 45.27 | 28.72 | 21.97 | b | 41.44 | a | ||||||||
1983 | 15.42 | 22.61 | 27.90 | 35.95 | 47.42 | 61.33 | 69.53 | 67.08 | a | 56.90 | 44.21 | 32.24 | a | 3.89 | 40.37 | |||||||||||
1984 | 7.52 | 24.48 | a | 19.10 | 42.50 | 49.73 | 63.03 | 64.55 | 65.37 | 52.10 | 47.05 | 29.32 | 16.67 | a | 40.12 | |||||||||||
1985 | 8.42 | 11.45 | 30.18 | a | 42.28 | a | 56.00 | 58.35 | 63.69 | 61.15 | 54.22 | ----- | z | ----- | z | ----- | z | 42.86 | c | |||||||
1986 | ----- | z | ----- | z | 28.48 | 45.52 | 56.73 | 60.68 | 66.61 | 59.56 | 55.00 | 43.20 | a | 26.82 | b | 20.20 | d | 46.28 | b | |||||||
1987 | 18.80 | c | 24.26 | a | 30.90 | u | 47.12 | a | 55.87 | 65.77 | b | 68.39 | 64.23 | 56.37 | d | ----- | z | ----- | z | ----- | z | 50.10 | d | |||
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.96 | e | 56.69 | c | 38.70 | f | 31.81 | d | 15.60 | b | 43.01 | h |
1989 | 18.84 | 8.12 | c | 22.42 | a | 38.41 | a | 51.76 | f | 59.04 | c | 65.85 | d | 64.54 | e | 55.17 | 46.30 | d | 24.42 | d | 6.03 | b | 37.19 | a | ||
1990 | 22.00 | 18.31 | a | 29.71 | 42.79 | i | 51.82 | f | 61.02 | b | 63.07 | b | 61.84 | 55.33 | d | 41.31 | 31.31 | a | 14.87 | a | 39.88 | b | ||||
1991 | 8.10 | 17.32 | 25.89 | 41.94 | d | 59.12 | b | 67.02 | 65.65 | a | 65.86 | b | 54.47 | a | 44.85 | 27.36 | e | 20.81 | e | 41.53 | ||||||
1992 | 18.56 | 23.55 | 27.55 | a | 38.73 | b | 55.50 | g | 60.16 | a | 61.20 | c | 60.72 | b | 56.55 | a | 45.15 | d | 30.34 | b | 20.48 | b | 40.27 | a | ||
1993 | 14.74 | 14.71 | b | 29.22 | a | 40.81 | c | 54.07 | b | 59.38 | d | 64.71 | b | 64.29 | 48.98 | 42.55 | c | 25.47 | 17.60 | a | 39.71 | |||||
1994 | 0.73 | 9.87 | b | 28.48 | 40.09 | b | 53.19 | 63.27 | 62.82 | 60.35 | 56.78 | a | 46.85 | a | 32.86 | a | 21.80 | a | 39.76 | |||||||
1995 | 14.55 | a | 15.04 | b | 29.20 | a | 35.28 | a | 51.73 | a | 65.07 | a | 66.61 | c | 67.32 | a | 52.45 | 44.26 | 19.40 | 11.19 | 39.34 | |||||
1996 | 5.77 | a | 11.23 | a | 19.03 | 35.26 | e | 47.26 | f | 61.41 | a | 60.35 | 63.00 | a | 54.41 | b | 43.62 | a | 24.18 | 19.83 | e | 36.19 | a | |||
1997 | 11.36 | f | 17.61 | 23.63 | a | 37.50 | a | 45.88 | b | 61.79 | a | 62.18 | c | 58.71 | c | 55.28 | a | 44.42 | 26.40 | a | 23.24 | 41.51 | a | |||
1998 | 18.05 | 29.59 | a | 27.73 | 44.24 | a | 57.72 | b | 60.04 | b | 64.47 | 64.98 | a | 59.12 | a | 45.02 | 31.59 | g | 19.78 | a | 44.61 | a | ||||
1999 | 8.94 | 21.48 | b | 27.98 | 44.18 | b | 53.32 | 61.86 | a | 68.35 | 61.18 | 53.48 | a | 42.12 | a | 35.02 | b | 19.59 | d | 41.46 | ||||||
2000 | 10.60 | a | 20.69 | b | 35.65 | a | 39.74 | c | 54.62 | a | 60.00 | b | 63.75 | c | 63.42 | 54.19 | a | 47.73 | c | 30.48 | b | 7.73 | i | 43.72 | a | |
2001 | 15.52 | i | 10.78 | a | 24.89 | d | 43.88 | a | 54.63 | a | 61.52 | b | 65.66 | 65.52 | c | 53.78 | a | 42.00 | b | 39.43 | c | 22.50 | d | 44.05 | a | |
2002 | 22.04 | g | 21.18 | f | 20.60 | f | 36.41 | g | 45.64 | i | 62.90 | a | 67.16 | f | 63.05 | c | 54.71 | f | 38.65 | e | 26.96 | b | 20.33 | g | 47.89 | h |
2003 | 10.56 | g | 8.94 | d | 25.94 | d | 38.62 | e | 49.43 | b | 57.56 | d | 63.32 | a | 63.88 | c | 55.31 | a | 42.93 | a | 29.26 | c | 20.05 | c | 41.39 | a |
2004 | 5.78 | a | 18.14 | d | 27.70 | h | 40.39 | b | 49.93 | h | 57.42 | j | 62.26 | n | 58.03 | p | 61.91 | m | ----- | z | ----- | z | ----- | z | 21.44 | i |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 10.11 | 14.51 | 24.96 | 40.07 | 53.20 | 61.51 | 65.49 | 63.32 | 54.53 | 44.74 | 29.46 | 16.25 | 39.78 | |||||||||||||
S.D. | 5.54 | 5.64 | 4.34 | 3.42 | 3.85 | 2.76 | 2.36 | 2.63 | 2.27 | 3.63 | 4.08 | 4.89 | 1.42 | |||||||||||||
SKEW | 0.05 | 0.53 | 0.21 | -0.01 | -0.17 | -0.15 | 0.45 | -0.08 | -0.63 | 0.37 | -0.37 | -0.65 | -0.97 | |||||||||||||
MAX | 22.00 | 29.59 | 35.65 | 48.13 | 60.39 | 67.02 | 71.76 | 68.81 | 59.12 | 55.18 | 39.43 | 25.21 | 41.60 | |||||||||||||
MIN | -2.10 | 3.95 | 16.34 | 32.32 | 45.88 | 54.78 | 60.35 | 56.97 | 48.43 | 37.97 | 19.40 | 3.89 | 36.49 | |||||||||||||
YRS | 46 | 51 | 50 | 51 | 47 | 52 | 50 | 54 | 52 | 51 | 51 | 50 | 35 |