YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.08 | s | 62.58 | 56.43 | 44.00 | 34.63 | 17.74 | 43.08 | g | |||||
1928 | 21.74 | 26.97 | 33.94 | 37.03 | 50.68 | 56.17 | 65.32 | 61.94 | 52.93 | 46.10 | 31.87 | 25.87 | 42.55 | |||||||||||||
1929 | 20.16 | 15.54 | 30.94 | 42.27 | 49.13 | a | 59.63 | 64.87 | 65.72 | f | 56.00 | 45.77 | 25.60 | 21.94 | 39.26 | a | ||||||||||
1930 | 10.90 | a | 29.75 | 26.03 | 44.93 | 50.81 | 62.00 | 66.10 | 64.65 | 57.17 | 44.61 | 31.72 | a | 21.03 | 42.47 | |||||||||||
1931 | 22.90 | 31.77 | b | 27.73 | e | 40.83 | 48.45 | 62.50 | 65.48 | 60.80 | a | 60.90 | 44.58 | 32.50 | 27.45 | 43.83 | ||||||||||
1932 | 20.32 | 29.34 | 23.77 | 39.10 | 49.29 | 57.47 | 64.71 | 63.58 | 53.33 | 41.35 | 27.97 | 16.55 | 40.57 | |||||||||||||
1933 | 26.26 | 19.00 | 31.39 | 37.20 | 52.13 | 64.43 | 67.71 | 64.87 | 62.17 | 45.39 | 34.83 | 28.58 | 44.50 | |||||||||||||
1934 | 24.10 | 27.21 | 30.81 | 44.77 | 53.71 | 63.33 | 69.65 | 69.52 | 53.40 | 48.16 | 35.43 | 24.35 | 45.37 | |||||||||||||
1935 | 26.03 | 27.96 | 40.33 | a | 42.50 | 48.21 | b | 61.30 | 68.26 | 68.10 | 54.50 | 45.58 | 31.00 | 24.87 | 44.89 | |||||||||||
1936 | 21.48 | 14.72 | 34.03 | 39.60 | 56.23 | 61.47 | 66.77 | 67.94 | 59.00 | 41.84 | ----- | z | 28.26 | 44.67 | a | |||||||||||
1937 | 14.23 | 24.96 | 30.55 | ----- | z | 54.94 | 60.80 | 67.81 | 69.68 | 60.53 | 45.23 | 32.43 | 24.16 | 44.12 | a | |||||||||||
1938 | 24.83 | b | 26.41 | a | 38.84 | 40.27 | 51.13 | 60.60 | 66.39 | 68.06 | 56.83 | 46.45 | 26.10 | 23.68 | 44.13 | |||||||||||
1939 | 25.58 | 17.04 | 30.45 | 40.20 | 51.77 | 61.43 | 65.65 | 62.26 | 57.87 | 42.61 | 28.87 | 22.48 | 42.18 | |||||||||||||
1940 | 9.26 | 26.66 | 30.52 | 38.90 | 50.77 | 59.50 | 67.00 | 62.94 | 58.50 | 46.00 | 28.93 | 27.00 | 42.16 | |||||||||||||
1941 | 24.52 | 26.89 | 28.42 | 40.80 | 52.58 | 57.37 | 62.84 | 62.03 | 55.37 | ----- | z | 29.47 | 25.58 | 42.35 | a | |||||||||||
1942 | 15.87 | 18.86 | 27.10 | 42.30 | 46.45 | 59.47 | 62.06 | 61.10 | 51.87 | 43.32 | 30.77 | 23.19 | 40.20 | |||||||||||||
1943 | 19.84 | 23.46 | 22.32 | 41.60 | 46.19 | 60.73 | 65.29 | 66.16 | 53.53 | 39.00 | 26.77 | 16.48 | 40.12 | |||||||||||||
1944 | 16.39 | 25.76 | 26.71 | 35.87 | 50.00 | 60.90 | 62.74 | 63.13 | 52.60 | 42.00 | 31.63 | 22.19 | 40.83 | |||||||||||||
1945 | 22.03 | a | 25.93 | 30.58 | 35.60 | 47.71 | 55.13 | 63.81 | 63.23 | 53.27 | 42.97 | 27.87 | 16.26 | 40.36 | ||||||||||||
1946 | 18.94 | 23.82 | 32.03 | 44.13 | 47.10 | ----- | z | 66.35 | 64.42 | 56.87 | 44.94 | 31.00 | 26.65 | 41.48 | a | |||||||||||
1947 | 19.23 | 19.57 | 26.84 | 38.21 | a | 48.42 | 55.93 | 62.90 | 64.74 | 54.97 | 50.33 | g | 25.73 | 22.55 | 39.92 | a | ||||||||||
1948 | 16.23 | a | 20.73 | c | 23.13 | a | 41.86 | a | 49.77 | 59.20 | 64.16 | 62.19 | 54.03 | a | 39.29 | 26.60 | 22.97 | 40.02 | ||||||||
1949 | 12.00 | 23.32 | 29.35 | 38.87 | 50.06 | 59.43 | 64.61 | 60.26 | 52.03 | 42.23 | 31.67 | 20.10 | 40.33 | |||||||||||||
1950 | 15.06 | 22.86 | 25.55 | 39.00 | 49.32 | 60.10 | 61.26 | 60.55 | 55.57 | 47.03 | 25.00 | 19.13 | 40.04 | |||||||||||||
1951 | 18.77 | 23.43 | 27.45 | 37.50 | 51.55 | 57.17 | 66.97 | 64.58 | 52.20 | 42.29 | 25.67 | 20.61 | 40.68 | |||||||||||||
1952 | 25.65 | 26.79 | a | 29.35 | 39.57 | 51.00 | 67.30 | 65.00 | 66.87 | 54.07 | 37.90 | 26.67 | 18.45 | 42.38 | ||||||||||||
1953 | 25.90 | 22.82 | 35.45 | 36.80 | 48.32 | 64.83 | 64.32 | 61.61 | 51.80 | 42.97 | 29.40 | 19.06 | 41.94 | |||||||||||||
1954 | 16.06 | 25.68 | 25.48 | 44.70 | 49.32 | 62.00 | 68.61 | 65.84 | 60.17 | 45.52 | 32.47 | 23.29 | 43.26 | |||||||||||||
1955 | 20.94 | 18.50 | 28.00 | 42.67 | 54.39 | 58.23 | 66.32 | 64.03 | 57.20 | 42.74 | 25.10 | 21.03 | 41.60 | |||||||||||||
1956 | 20.16 | 20.45 | 29.87 | 37.27 | 55.23 | 64.63 | 65.42 | 62.65 | 56.73 | 46.84 | 26.77 | 23.65 | 42.47 | |||||||||||||
1957 | 18.52 | 29.68 | 32.48 | 39.93 | 48.90 | 57.43 | 66.03 | 64.55 | 51.70 | 44.42 | 29.70 | 23.84 | 42.27 | |||||||||||||
1958 | 20.23 | 25.18 | 26.42 | 38.77 | 53.74 | 61.57 | 64.55 | 63.97 | 59.43 | 44.45 | 30.80 | 21.16 | 42.52 | |||||||||||||
1959 | 17.83 | a | 24.25 | 28.23 | 38.27 | 54.10 | 63.97 | 63.13 | 66.19 | 55.80 | 40.03 | 24.40 | 27.55 | 41.98 | ||||||||||||
1960 | 20.58 | 22.10 | 27.23 | 43.67 | 48.81 | 61.43 | 63.10 | 63.71 | 56.30 | 44.42 | 30.80 | 23.87 | 42.17 | |||||||||||||
1961 | 17.26 | 25.11 | a | 29.12 | o | 36.93 | c | 46.00 | s | ----- | z | 62.07 | q | ----- | z | ----- | z | ----- | z | 27.92 | r | 20.72 | b | 25.00 | h | |
1962 | 14.85 | e | 26.77 | f | 27.81 | d | 43.79 | k | 55.29 | n | 58.82 | s | ----- | z | ----- | z | 56.86 | h | 45.16 | 32.83 | 26.55 | 29.44 | g | |||
1963 | 9.84 | 26.11 | 36.71 | 45.62 | a | 55.61 | 62.10 | 68.29 | 66.16 | 59.37 | 50.00 | 33.27 | 18.61 | 44.31 | ||||||||||||
1964 | 21.23 | 20.72 | 27.45 | 43.03 | 54.13 | 60.73 | 67.45 | 65.26 | 58.07 | 41.97 | a | 33.50 | 22.48 | 43.00 | ||||||||||||
1965 | 24.73 | a | 21.11 | 23.61 | 42.57 | 52.73 | a | 60.30 | 65.16 | 62.70 | a | 55.32 | b | 42.68 | 37.07 | a | 29.16 | 43.10 | ||||||||
1966 | 15.39 | 20.82 | 31.74 | 39.17 | 49.10 | 64.00 | t | 69.94 | 62.65 | 55.77 | 40.55 | 33.10 | a | 19.77 | 39.82 | a | ||||||||||
1967 | 22.03 | 23.21 | 34.77 | 46.67 | 47.67 | a | 61.40 | 64.65 | 61.13 | 55.47 | 44.00 | 29.52 | a | 22.10 | a | 42.72 | ||||||||||
1968 | 23.26 | 22.66 | 34.00 | 40.69 | a | 48.61 | 61.10 | 63.84 | 63.65 | 55.07 | 45.13 | 31.33 | 19.48 | 42.40 | ||||||||||||
1969 | 25.52 | 25.81 | a | 24.61 | 42.86 | b | 53.52 | 58.07 | 67.26 | 64.78 | d | 58.47 | 41.97 | 28.37 | 24.83 | a | 43.00 | |||||||||
1970 | 17.10 | 26.11 | 26.94 | 39.07 | 51.66 | b | 58.90 | 66.10 | 64.81 | 55.34 | a | 40.57 | a | 30.23 | 25.55 | 41.86 | ||||||||||
1971 | 20.65 | 23.36 | 30.61 | 40.63 | 48.32 | 61.77 | 64.84 | 61.16 | 56.13 | 44.74 | 34.53 | 27.52 | 42.86 | |||||||||||||
1972 | 20.10 | 24.52 | 35.71 | 43.60 | 51.13 | 59.93 | 63.19 | 62.68 | 57.10 | 45.19 | 26.67 | 20.26 | 42.51 | |||||||||||||
1973 | 21.03 | 26.46 | 35.68 | 38.10 | 49.16 | 59.90 | 64.06 | 62.58 | 55.13 | 45.26 | 34.40 | 23.45 | 42.94 | |||||||||||||
1974 | 18.35 | 26.36 | 35.55 | 43.70 | 54.13 | 59.20 | 65.19 | 61.94 | 50.10 | 46.74 | 32.67 | 22.71 | 43.05 | |||||||||||||
1975 | 22.35 | 21.79 | 31.13 | 40.50 | 49.71 | 59.47 | 63.26 | 63.87 | 52.10 | 42.52 | 31.00 | 25.71 | 41.95 | |||||||||||||
1976 | 19.65 | 31.14 | 31.23 | 44.13 | 47.35 | 58.77 | 62.29 | 60.94 | 54.97 | 37.10 | 25.70 | 21.74 | 41.25 | |||||||||||||
1977 | 14.16 | 27.39 | 31.10 | 45.73 | 54.94 | 63.40 | 66.23 | 64.42 | 58.90 | 44.68 | 30.67 | 24.87 | 43.87 | |||||||||||||
1978 | 16.10 | 18.43 | 33.03 | 45.93 | 51.48 | 62.87 | 66.65 | 64.61 | 57.80 | 45.10 | 35.60 | 19.77 | 43.11 | |||||||||||||
1979 | 12.97 | 23.54 | 35.77 | 42.34 | a | 50.10 | 58.77 | 65.16 | 61.55 | 55.40 | 44.42 | 29.20 | 25.39 | 42.05 | ||||||||||||
1980 | 23.90 | 26.07 | 30.94 | 39.77 | 50.00 | 63.57 | 69.10 | 66.03 | 57.83 | 41.29 | 31.83 | 27.16 | 43.96 | |||||||||||||
1981 | 24.58 | 26.07 | 35.35 | 47.40 | 51.29 | 63.20 | 66.71 | 63.55 | 55.90 | 45.97 | 36.43 | 26.13 | 45.22 | |||||||||||||
1982 | 21.48 | 21.29 | 32.16 | 40.87 | 52.77 | 58.50 | 66.06 | 66.39 | 59.03 | 44.32 | 31.97 | 26.00 | 43.40 | |||||||||||||
1983 | 25.00 | 27.11 | 33.81 | 36.63 | 47.03 | 58.07 | 66.71 | 68.13 | 59.67 | 47.86 | b | 35.40 | 13.45 | 43.24 | ||||||||||||
1984 | 20.03 | 27.07 | 30.10 | 37.50 | ----- | z | 62.63 | 65.26 | 64.71 | 54.77 | 44.47 | a | 33.43 | 26.97 | 42.45 | a | ||||||||||
1985 | 19.10 | 22.93 | 35.84 | 44.07 | 54.48 | 61.70 | 65.90 | 65.48 | 57.97 | 46.03 | 31.00 | 22.52 | 43.92 | |||||||||||||
1986 | 28.26 | 28.18 | 39.16 | 46.23 | 53.55 | 63.50 | 68.84 | 64.77 | 60.03 | 45.71 | 31.27 | 27.13 | 46.39 | |||||||||||||
1987 | 24.52 | 31.86 | 31.61 | 41.00 | 55.03 | 61.13 | 65.55 | 65.55 | 56.83 | 44.74 | 34.47 | 24.74 | 44.75 | |||||||||||||
1988 | 20.45 | 24.48 | 31.10 | 40.60 | 52.29 | 63.00 | 65.68 | 66.16 | 55.63 | 44.48 | 33.87 | 25.97 | 43.64 | |||||||||||||
1989 | 25.45 | 19.54 | 33.55 | 45.10 | 54.97 | 58.83 | a | 64.10 | 65.23 | 53.10 | 44.97 | 32.63 | 18.74 | 43.02 | ||||||||||||
1990 | 25.68 | 27.43 | 34.77 | 42.27 | 50.71 | 65.07 | 65.00 | 64.32 | 60.43 | 44.32 | 36.13 | 19.16 | 44.61 | |||||||||||||
1991 | 21.23 | 30.75 | 36.06 | 43.83 | 56.03 | 63.33 | 66.13 | 64.84 | 57.63 | 45.00 | 31.45 | a | 29.29 | 45.46 | ||||||||||||
1992 | 28.52 | 32.66 | 37.16 | 45.07 | 52.35 | 59.33 | 65.29 | 61.77 | 57.90 | 45.35 | 29.13 | 24.73 | a | 44.94 | ||||||||||||
1993 | 21.38 | b | 24.61 | 32.97 | 41.37 | 52.84 | 62.07 | 68.19 | 65.06 | 55.20 | 42.87 | 29.30 | 27.35 | 43.60 | ||||||||||||
1994 | 22.59 | b | 22.07 | 36.32 | 41.42 | d | 53.58 | 65.20 | 64.48 | 64.48 | 56.87 | 46.68 | c | 34.87 | 29.61 | 44.85 | ||||||||||
1995 | 27.52 | 30.19 | a | 34.90 | 39.43 | 47.84 | 58.30 | 64.61 | 67.13 | 57.97 | 43.77 | 33.57 | 25.94 | 44.26 | ||||||||||||
1996 | 20.47 | a | 27.28 | 28.10 | 42.53 | 57.03 | 62.47 | 66.65 | 64.29 | 55.77 | 45.32 | 32.30 | 24.67 | a | 43.91 | |||||||||||
1997 | 23.26 | 26.50 | 34.23 | 37.54 | b | 50.84 | 60.73 | 66.87 | 64.61 | 59.97 | 46.39 | 31.10 | 25.20 | a | 43.94 | |||||||||||
1998 | 27.87 | 31.86 | 30.97 | 40.00 | 56.39 | 62.77 | 68.77 | 65.65 | 63.17 | 50.27 | a | 37.93 | 26.52 | 46.85 | ||||||||||||
1999 | 26.94 | 31.36 | 34.06 | 42.20 | 52.23 | 60.57 | 68.29 | 67.45 | 56.83 | 45.03 | 37.97 | 28.74 | 45.97 | |||||||||||||
2000 | 26.87 | 31.44 | k | 37.55 | 44.67 | 55.03 | 61.70 | 68.68 | 70.26 | 60.40 | 51.03 | 29.83 | 22.52 | 48.05 | a | |||||||||||
2001 | 25.87 | 26.44 | a | 34.50 | a | 48.14 | a | 53.61 | 63.53 | 71.32 | 67.45 | 58.23 | 47.19 | 41.10 | 28.58 | 47.17 | ||||||||||
2002 | 25.87 | a | 27.73 | b | 29.33 | a | 46.47 | 52.77 | 65.07 | 67.61 | 66.55 | 58.43 | 31.00 | y | 32.00 | x | 26.03 | 46.59 | b | |||||||
2003 | 26.97 | a | 26.07 | 35.48 | 45.90 | 53.65 | 59.53 | 67.97 | 66.97 | b | 55.24 | a | 50.64 | q | 37.90 | t | ----- | z | 48.64 | c | ||||||
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.96 | 24.89 | 31.32 | 41.44 | 51.45 | 60.94 | 65.84 | 64.46 | 56.41 | 44.32 | 31.19 | 23.54 | 43.06 | |||||||||||||
S.D. | 4.56 | 3.94 | 4.09 | 3.07 | 2.74 | 2.45 | 2.01 | 2.28 | 2.71 | 2.58 | 3.51 | 3.55 | 1.69 | |||||||||||||
SKEW | -0.51 | -0.28 | -0.10 | 0.12 | 0.06 | 0.01 | 0.19 | 0.32 | 0.03 | -0.26 | 0.14 | -0.47 | 0.18 | |||||||||||||
MAX | 28.52 | 32.66 | 40.33 | 48.14 | 57.03 | 67.30 | 71.32 | 70.26 | 63.17 | 51.03 | 41.10 | 29.61 | 47.17 | |||||||||||||
MIN | 9.26 | 14.72 | 22.32 | 35.60 | 46.19 | 55.13 | 61.26 | 60.26 | 50.10 | 37.10 | 24.40 | 13.45 | 40.02 | |||||||||||||
YRS | 76 | 74 | 75 | 74 | 73 | 72 | 74 | 74 | 75 | 72 | 73 | 76 | 63 |