YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 35.50 | w | 37.83 | a | 46.81 | 57.27 | 59.84 | 55.84 | 52.90 | 47.00 | 28.50 | 22.74 | 45.41 | c | ||||||||
1951 | 19.39 | 24.36 | 28.33 | a | 35.53 | 47.84 | 54.97 | 63.48 | 62.20 | a | 52.33 | 42.39 | 27.86 | b | 24.03 | 40.23 | ||||||||||
1952 | 25.55 | 24.97 | 25.97 | 38.67 | 46.13 | 56.58 | f | 60.03 | 60.23 | 51.43 | 38.48 | 26.27 | 22.42 | 38.19 | a | |||||||||||
1953 | 28.03 | 22.46 | 33.61 | 35.43 | 44.26 | 60.87 | 62.65 | 59.61 | 49.43 | 42.94 | 32.00 | 22.78 | h | 42.84 | a | |||||||||||
1954 | 23.03 | 30.75 | 28.07 | c | 45.53 | 48.77 | 61.30 | 64.19 | 62.61 | 55.90 | 43.48 | 30.33 | 24.13 | 43.18 | ||||||||||||
1955 | 20.90 | 17.32 | 26.10 | 36.70 | 49.00 | c | 54.63 | 63.35 | 61.03 | 58.47 | 43.90 | 27.93 | 22.94 | 40.19 | ||||||||||||
1956 | 21.29 | 17.38 | 28.94 | 34.57 | 53.68 | 64.50 | 66.52 | 64.68 | 60.23 | 47.94 | 25.31 | a | 22.17 | a | 42.27 | |||||||||||
1957 | 19.48 | 32.39 | 29.77 | 35.57 | 49.65 | 59.16 | k | 68.74 | 64.56 | d | 53.53 | 45.39 | 28.10 | 25.72 | b | 41.17 | a | |||||||||
1958 | 23.61 | 26.61 | 27.29 | 37.13 | 51.32 | 58.67 | 60.17 | g | 62.29 | g | 59.03 | 43.16 | 30.63 | 21.35 | 37.88 | b | ||||||||||
1959 | 18.10 | 24.57 | 26.73 | a | 37.73 | 53.37 | a | 63.83 | g | 64.97 | 65.94 | 57.83 | a | 39.97 | 24.79 | a | 27.13 | 40.10 | a | |||||||
1960 | 20.03 | 19.21 | 28.06 | 37.83 | 42.94 | 57.90 | 58.07 | c | 59.87 | 52.47 | 39.16 | 29.97 | 21.68 | 38.93 | ||||||||||||
1961 | 17.35 | 24.25 | 32.55 | 35.63 | 47.74 | 54.63 | 56.94 | 56.77 | 47.93 | 38.16 | 26.93 | 20.50 | a | 38.28 | ||||||||||||
1962 | 15.42 | 25.82 | 24.52 | 36.33 | 44.71 | 51.60 | 58.16 | 57.19 | 51.73 | 41.77 | 30.21 | b | 23.97 | 38.45 | ||||||||||||
1963 | 12.19 | 25.46 | 31.39 | 42.27 | 48.77 | a | 53.62 | a | 60.81 | d | 59.65 | 54.30 | 45.39 | 31.13 | 18.55 | 40.29 | ||||||||||
1964 | 19.55 | 18.14 | 25.65 | 35.48 | a | 48.13 | 55.20 | 60.77 | 58.04 | e | 53.67 | 40.61 | 30.70 | 23.84 | 39.15 | |||||||||||
1965 | 24.68 | 20.46 | 22.61 | 40.23 | 47.10 | 54.50 | 60.84 | 58.35 | 51.80 | 39.97 | 36.67 | 26.84 | 40.34 | |||||||||||||
1966 | 16.61 | 20.07 | 30.19 | 37.77 | 47.03 | 57.23 | 63.59 | b | 58.10 | 53.30 | 38.94 | 33.73 | 20.10 | 39.72 | ||||||||||||
1967 | 22.35 | 23.43 | 34.71 | 42.47 | 44.90 | 55.87 | 60.77 | 56.94 | 52.07 | 40.87 | 31.10 | 20.48 | 40.50 | |||||||||||||
1968 | 24.26 | 23.96 | a | 31.74 | 36.53 | m | 47.00 | 54.27 | 60.13 | 59.52 | 49.83 | 42.16 | 31.40 | 20.53 | a | 40.44 | a | |||||||||
1969 | 28.00 | a | 28.08 | b | 24.00 | a | 41.60 | 49.29 | 55.17 | 64.23 | 63.06 | 55.77 | 40.97 | 31.70 | 26.61 | 42.37 | ||||||||||
1970 | 19.10 | 28.00 | a | 26.90 | 36.83 | 47.03 | 53.93 | 62.03 | 60.06 | 52.83 | 37.81 | 31.00 | 26.90 | 40.20 | ||||||||||||
1971 | 22.45 | b | 23.18 | 28.90 | 36.67 | 45.55 | 57.67 | 60.63 | a | 57.59 | b | 51.50 | 42.32 | 33.10 | a | 27.06 | 40.55 | |||||||||
1972 | 22.10 | 24.76 | 34.06 | 40.74 | c | 48.39 | 57.20 | 60.00 | 58.81 | 54.87 | 43.42 | 27.10 | 21.81 | 41.10 | ||||||||||||
1973 | 21.94 | 25.64 | 30.76 | j | 32.07 | 44.10 | 53.80 | 59.42 | 57.90 | b | 51.03 | 41.52 | 31.89 | c | 23.90 | 40.29 | a | |||||||||
1974 | 21.18 | c | 24.57 | 34.26 | 37.33 | 50.97 | 56.97 | 61.13 | 58.10 | a | 49.13 | 45.23 | 30.83 | 22.68 | 41.03 | |||||||||||
1975 | 23.29 | 24.93 | 28.26 | 35.07 | 41.21 | l | 55.53 | o | 56.40 | f | 56.42 | 48.28 | a | 39.71 | 27.37 | 24.68 | 34.22 | c | ||||||||
1976 | 19.71 | 29.41 | 29.71 | 40.57 | 44.90 | 55.20 | 59.23 | 58.32 | 52.52 | a | 37.23 | 25.80 | 20.71 | 39.44 | ||||||||||||
1977 | 17.29 | 24.39 | 28.77 | 40.50 | 46.55 | 58.03 | 60.06 | 59.77 | a | 53.67 | 42.74 | 30.00 | 26.71 | 40.71 | ||||||||||||
1978 | 17.97 | 21.32 | 31.23 | 38.97 | 46.68 | 56.90 | 61.65 | 57.26 | 52.00 | 41.42 | 34.37 | 19.77 | a | 39.96 | ||||||||||||
1979 | 15.13 | a | 25.36 | 30.32 | 34.06 | m | 46.58 | e | 52.40 | 57.94 | 54.03 | 51.70 | 40.39 | 25.77 | 23.52 | 38.47 | a | |||||||||
1980 | 23.19 | 23.70 | b | 29.74 | 35.07 | 44.84 | 60.17 | 63.48 | 58.45 | 53.07 | a | 38.52 | 29.47 | 26.45 | b | 40.51 | ||||||||||
1981 | 24.74 | 25.75 | 32.35 | 41.23 | ----- | z | 59.36 | s | 58.71 | 58.77 | 51.00 | 40.65 | 35.07 | 25.56 | f | 40.92 | c | |||||||||
1982 | 23.58 | 23.18 | 31.87 | 39.34 | a | 46.61 | 54.60 | 60.65 | 60.94 | 52.52 | e | 40.29 | 30.33 | 24.23 | 40.68 | |||||||||||
1983 | 23.16 | 26.39 | 32.00 | 33.77 | 42.68 | 52.10 | 59.45 | 61.65 | 54.47 | 44.42 | 34.40 | e | 16.00 | 40.04 | ||||||||||||
1984 | 21.03 | 23.57 | a | 28.61 | 34.48 | a | 47.64 | f | 56.53 | 59.71 | 59.97 | 50.00 | 40.19 | 32.00 | 26.74 | 39.35 | a | |||||||||
1985 | 20.39 | 23.30 | a | 32.74 | 38.60 | 48.55 | 55.83 | 59.03 | 59.61 | 49.45 | a | 43.27 | a | 31.60 | 20.61 | 40.25 | ||||||||||
1986 | 26.48 | 27.00 | 34.68 | 40.73 | 48.65 | 58.40 | 61.35 | 60.25 | c | 54.87 | 42.68 | 29.50 | 26.00 | 42.55 | ||||||||||||
1987 | 22.10 | 28.93 | 29.06 | 36.93 | 48.40 | a | 57.57 | 60.87 | 59.94 | 52.53 | 43.00 | 30.67 | 21.03 | 40.92 | ||||||||||||
1988 | 20.16 | 22.48 | 28.00 | 37.83 | 47.10 | 56.63 | 61.13 | 60.52 | 52.03 | 43.06 | 31.37 | 21.80 | f | 41.85 | a | |||||||||||
1989 | 24.23 | 21.93 | 32.77 | 39.73 | 51.00 | 55.37 | 59.90 | 59.44 | d | 53.11 | l | 43.30 | a | 31.31 | d | 18.48 | 39.77 | a | ||||||||
1990 | 20.85 | d | 26.23 | b | 31.74 | 39.83 | g | 46.32 | 61.77 | 60.26 | 59.03 | 56.77 | 41.19 | 32.35 | m | 19.50 | a | 42.37 | b | |||||||
1991 | 20.93 | a | 30.39 | 31.67 | a | 39.30 | 50.30 | d | 58.38 | a | 60.45 | 60.37 | a | 52.72 | a | 42.50 | a | 29.30 | 27.03 | a | 41.95 | |||||
1992 | 25.61 | 30.69 | 33.17 | a | 42.48 | a | 47.68 | 54.54 | b | 60.04 | d | 58.30 | a | 52.83 | 44.39 | 28.07 | 24.45 | b | 41.85 | |||||||
1993 | 23.34 | b | 25.52 | a | 30.56 | d | 39.90 | 47.68 | 57.66 | a | 62.93 | a | 59.74 | d | 51.07 | a | 39.76 | b | 27.33 | 25.71 | 40.93 | |||||
1994 | 22.45 | 24.00 | 33.35 | 38.67 | 50.50 | c | 59.86 | h | 61.32 | 60.70 | d | 54.40 | 42.52 | 32.77 | 29.03 | 40.88 | a | |||||||||
1995 | 27.03 | 30.43 | 33.90 | 37.77 | 47.61 | 56.20 | 60.35 | 62.32 | 55.03 | 43.00 | 33.00 | b | 26.14 | c | 42.73 | |||||||||||
1996 | 22.65 | 28.21 | 28.45 | 40.60 | 54.00 | 59.77 | 63.21 | b | 61.06 | 52.13 | 41.53 | a | 31.90 | 26.45 | 42.50 | |||||||||||
1997 | 23.16 | 26.00 | 33.90 | b | 34.70 | 47.59 | b | 56.80 | 61.45 | 61.10 | j | 57.47 | 43.53 | a | 30.33 | 22.35 | 39.75 | a | ||||||||
1998 | 27.55 | 28.46 | 28.10 | 35.85 | c | 49.37 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.87 | g | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.72 | 24.95 | 29.99 | 38.04 | 47.78 | 56.59 | 61.18 | 59.64 | 53.06 | 41.92 | 30.23 | 23.42 | 40.70 | |||||||||||||
S.D. | 3.42 | 3.47 | 3.02 | 2.75 | 2.56 | 2.68 | 2.28 | 2.32 | 2.73 | 2.34 | 2.67 | 2.94 | 1.25 | |||||||||||||
SKEW | -0.37 | -0.15 | -0.33 | 0.31 | 0.42 | 0.64 | 1.01 | 0.44 | 0.59 | 0.20 | -0.03 | -0.28 | 0.15 | |||||||||||||
MAX | 28.03 | 32.39 | 34.71 | 45.53 | 54.00 | 64.50 | 68.74 | 65.94 | 60.23 | 47.94 | 36.67 | 29.03 | 43.18 | |||||||||||||
MIN | 12.19 | 17.32 | 22.61 | 32.07 | 42.68 | 51.60 | 56.94 | 54.03 | 47.93 | 37.23 | 24.79 | 16.00 | 38.28 | |||||||||||||
YRS | 48 | 48 | 47 | 46 | 46 | 42 | 46 | 46 | 47 | 48 | 47 | 45 | 31 |