YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 49.82 | b | 58.52 | 55.55 | 52.00 | 38.37 | a | 33.20 | 25.45 | 44.70 | e | |||||
1928 | 22.29 | 26.90 | 29.15 | d | 31.30 | 45.19 | 46.97 | 57.35 | 55.14 | c | 48.97 | 39.52 | 31.03 | 23.42 | 38.10 | |||||||||||
1929 | 20.97 | 22.71 | 27.10 | 32.10 | 38.52 | 46.07 | 60.23 | 58.23 | 52.27 | 39.03 | 25.40 | 19.42 | g | 38.42 | a | |||||||||||
1930 | 22.13 | h | 26.39 | ----- | z | 37.23 | 32.88 | n | ----- | z | 58.77 | 50.81 | 37.93 | 29.69 | e | 23.60 | 17.88 | e | 35.29 | d | ||||||
1931 | 18.90 | 31.57 | ----- | z | 37.47 | 37.10 | a | 53.80 | 57.43 | h | 55.19 | 44.71 | b | ----- | z | 26.60 | 15.00 | g | 38.17 | d | ||||||
1932 | ----- | z | ----- | z | 28.97 | 32.67 | 38.08 | e | ----- | z | ----- | z | ----- | z | 41.38 | i | 34.65 | 20.67 | 15.81 | 28.47 | f | |||||
1933 | 18.39 | 17.71 | 20.42 | 27.20 | 32.74 | ----- | z | ----- | z | 53.48 | ----- | z | 38.68 | 22.80 | 21.68 | l | 28.93 | d | ||||||||
1934 | ----- | z | 22.43 | 28.23 | 36.37 | 41.00 | ----- | z | 55.78 | v | 59.39 | 42.00 | 31.65 | ----- | z | ----- | z | 37.29 | e | |||||||
1935 | 24.73 | a | 26.86 | 27.16 | 33.07 | 35.50 | g | 44.63 | 47.19 | 54.71 | n | ----- | z | ----- | z | 24.53 | 22.52 | 31.34 | d | |||||||
1936 | 17.06 | 26.14 | 25.97 | 31.93 | ----- | z | ----- | z | ----- | z | 57.07 | p | 48.60 | ----- | z | ----- | z | 21.25 | k | 29.94 | g | |||||
1937 | 5.71 | 23.36 | 27.19 | 28.34 | a | ----- | z | 39.90 | 52.27 | i | ----- | z | 47.73 | 31.80 | a | 20.50 | 25.00 | 27.73 | c | |||||||
1938 | 22.06 | 26.50 | h | 27.54 | c | 27.43 | ----- | z | 41.33 | 58.37 | l | 53.26 | 46.80 | ----- | z | 16.03 | 22.87 | 32.17 | d | |||||||
1939 | 26.00 | b | 17.71 | 29.00 | 35.00 | 36.97 | 47.00 | 56.45 | 55.84 | 52.93 | 35.45 | 33.73 | 26.57 | a | 37.72 | |||||||||||
1940 | 25.90 | 26.55 | 30.35 | 35.47 | 43.23 | a | 50.37 | 56.61 | 56.94 | 53.37 | 40.35 | 29.07 | 31.03 | 39.94 | ||||||||||||
1941 | 31.00 | r | 34.07 | 32.87 | 34.20 | 42.74 | 45.53 | 55.03 | a | 55.48 | 46.77 | h | 38.19 | 30.37 | 27.77 | 39.63 | b | |||||||||
1942 | 23.90 | a | 22.50 | 26.42 | 32.07 | 35.13 | 43.93 | 57.30 | a | 55.58 | 48.47 | 39.74 | 30.70 | 26.52 | 36.85 | |||||||||||
1943 | 23.90 | 28.57 | 30.00 | 35.47 | 39.13 | 43.53 | ----- | z | 57.06 | 49.50 | 38.48 | 26.93 | 26.61 | 36.29 | a | |||||||||||
1944 | 21.52 | 26.31 | 27.39 | 31.27 | 38.52 | 43.63 | 55.06 | 55.84 | 48.73 | 41.77 | 29.87 | 23.94 | 36.99 | |||||||||||||
1945 | 23.39 | 25.86 | 27.74 | 29.80 | 37.74 | 40.87 | 57.65 | ----- | z | 45.77 | 41.74 | 24.50 | b | 20.06 | 34.10 | a | ||||||||||
1946 | 22.77 | 19.61 | 27.65 | 38.90 | 37.71 | 47.83 | 53.68 | 57.32 | 51.40 | 36.38 | w | 27.83 | 25.73 | a | 37.31 | a | ||||||||||
1947 | 19.29 | 23.82 | 27.42 | 31.20 | 41.70 | a | 45.07 | 55.52 | 56.03 | 62.64 | b | 42.55 | 26.53 | 21.55 | 37.78 | |||||||||||
1948 | 19.16 | 23.04 | a | 25.00 | b | 30.60 | 36.35 | 47.17 | 55.32 | 56.23 | a | 47.60 | 38.77 | 20.80 | 23.61 | 35.31 | ||||||||||
1949 | 19.74 | 24.68 | 28.23 | 34.73 | 38.55 | 46.12 | e | 57.79 | b | 51.55 | 50.60 | 36.19 | 27.93 | 22.23 | a | 36.53 | ||||||||||
1950 | 19.90 | 26.89 | 27.20 | a | 33.80 | 36.06 | 44.43 | 56.87 | a | 49.68 | 44.20 | 40.58 | 28.83 | 23.43 | a | 35.99 | ||||||||||
1951 | 22.00 | a | 25.04 | 28.71 | 34.20 | 38.97 | 40.57 | 55.61 | 54.14 | b | 43.97 | 37.16 | 28.40 | 25.42 | 36.18 | |||||||||||
1952 | 27.39 | 23.59 | 26.45 | 36.13 | 41.65 | 46.17 | 54.29 | 56.81 | 48.03 | 35.10 | 26.55 | a | 23.65 | 37.15 | ||||||||||||
1953 | 24.29 | 20.04 | 29.90 | 32.90 | 33.81 | 44.60 | 59.81 | 52.81 | 43.73 | 34.77 | 28.07 | a | 18.13 | a | 35.24 | |||||||||||
1954 | 21.33 | a | 26.32 | 28.26 | 34.50 | 40.52 | 44.17 | a | 56.71 | 54.16 | 49.23 | 36.19 | 27.67 | 18.14 | i | 38.10 | a | |||||||||
1955 | 21.65 | h | 17.46 | d | 20.52 | f | 26.10 | 36.45 | b | 44.31 | a | 53.20 | a | ----- | z | ----- | z | ----- | z | ----- | z | 24.25 | k | 35.50 | g | |
1956 | 21.96 | f | 18.59 | g | 25.30 | d | 31.00 | h | 38.56 | d | 51.62 | f | 53.77 | a | 51.16 | 46.70 | 34.10 | a | 21.97 | 18.63 | a | 36.27 | d | |||
1957 | 27.81 | 33.29 | 30.06 | 30.63 | 36.94 | 47.47 | 57.00 | 55.61 | 42.80 | 40.61 | 26.33 | 24.23 | 37.73 | |||||||||||||
1958 | 21.52 | d | 28.43 | 30.42 | 32.97 | 42.33 | a | 50.73 | 55.03 | 56.65 | 51.67 | 40.32 | 27.28 | a | 23.26 | 38.38 | ||||||||||
1959 | 23.61 | 23.43 | 24.97 | 37.13 | 38.10 | 53.45 | a | 60.06 | 57.68 | 46.23 | 36.08 | f | 30.13 | 28.39 | 38.47 | a | ||||||||||
1960 | 17.97 | 22.62 | 31.48 | b | 33.17 | 37.42 | 48.73 | 58.68 | 59.08 | s | 44.83 | l | 38.52 | 29.77 | 22.48 | 34.08 | b | |||||||||
1961 | 24.48 | 24.25 | 29.34 | b | 32.23 | 37.55 | 50.57 | 58.06 | 57.29 | 47.03 | 35.48 | b | 29.13 | 25.74 | 37.60 | |||||||||||
1962 | 23.10 | 27.68 | 26.95 | i | 34.33 | 35.29 | 43.30 | 54.97 | 54.65 | 52.13 | 38.81 | 30.90 | 24.97 | 38.19 | a | |||||||||||
1963 | 18.84 | 26.46 | 24.94 | 30.70 | 40.23 | 42.57 | 57.10 | 57.20 | a | 50.33 | 40.13 | 34.86 | w | 24.00 | k | 38.85 | b | |||||||||
1964 | 17.10 | 18.07 | 24.23 | a | 31.13 | 37.97 | 45.17 | 58.61 | 56.23 | 50.07 | 39.03 | 25.53 | 24.35 | 35.62 | ||||||||||||
1965 | 27.90 | 22.82 | 27.29 | 34.33 | 37.58 | 43.27 | 57.77 | 53.15 | r | 46.97 | 36.16 | ----- | z | ----- | z | 37.12 | c | |||||||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.90 | 20.23 | 24.56 | j | ||
1968 | 23.61 | 30.55 | 29.29 | 33.20 | 37.35 | 44.07 | 54.32 | 52.04 | d | 44.58 | f | 35.73 | e | 28.08 | d | 15.68 | i | 36.82 | b | |||||||
1969 | 29.14 | i | 23.18 | 25.11 | d | 31.31 | d | 36.54 | g | 38.71 | p | 54.65 | n | 60.53 | l | 48.18 | h | 33.54 | e | 28.46 | f | 25.93 | c | 27.81 | g | |
1970 | 11.33 | s | 25.59 | a | 26.03 | b | 27.23 | 37.80 | a | 44.06 | n | 59.29 | g | 57.71 | n | 47.27 | h | ----- | z | 23.87 | 23.16 | 27.28 | f | |||
1971 | 18.61 | 22.00 | a | 25.10 | 30.60 | 35.94 | 44.48 | c | 57.28 | f | 55.54 | c | 43.83 | 34.17 | a | 24.63 | 20.65 | 32.32 | a | |||||||
1972 | 17.65 | 17.52 | 24.52 | 27.13 | 32.65 | 46.93 | 53.29 | 50.26 | 45.90 | 39.45 | 24.57 | 19.23 | 33.26 | |||||||||||||
1973 | ----- | z | 24.04 | 28.23 | 30.80 | 41.47 | p | 49.71 | b | 54.15 | d | ----- | z | ----- | z | ----- | z | ----- | z | 19.56 | f | 37.38 | g | |||
1974 | 22.71 | 19.54 | 29.58 | ----- | z | ----- | z | ----- | z | ----- | z | 52.50 | e | 47.10 | 39.38 | r | 31.00 | 19.65 | 31.72 | e | ||||||
1975 | 22.10 | b | 24.68 | 29.32 | 30.24 | a | 35.90 | ----- | z | 58.92 | f | ----- | z | 50.80 | 40.23 | 23.97 | ----- | z | 32.16 | d | ||||||
1976 | ----- | z | ----- | z | ----- | z | 31.69 | a | 41.74 | 46.63 | 56.16 | 53.03 | 50.47 | ----- | z | ----- | z | ----- | z | 46.62 | f | |||||
1977 | 22.64 | t | 23.00 | a | 23.92 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.26 | 32.70 | 24.35 | 30.83 | h | |||
1978 | 28.58 | 28.86 | 35.71 | 34.27 | 36.55 | 47.67 | 57.61 | 57.97 | ----- | z | ----- | z | ----- | z | ----- | z | 40.90 | d | ||||||||
1979 | 24.71 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 24.71 | k | |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1985 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.82 | 24.49 | 27.80 | 32.49 | 38.19 | 45.96 | 56.27 | 54.98 | 48.24 | 37.63 | 26.93 | 23.36 | 36.85 | |||||||||||||
S.D. | 4.08 | 3.97 | 2.59 | 2.97 | 2.76 | 3.26 | 2.48 | 2.40 | 4.15 | 3.18 | 3.76 | 3.21 | 1.52 | |||||||||||||
SKEW | -1.38 | 0.19 | 0.20 | -0.14 | 0.35 | 0.45 | -1.20 | -0.52 | 0.62 | -0.49 | -0.56 | -0.19 | -0.34 | |||||||||||||
MAX | 28.58 | 34.07 | 35.71 | 38.90 | 45.19 | 53.80 | 60.23 | 59.39 | 62.64 | 43.26 | 33.73 | 31.03 | 39.94 | |||||||||||||
MIN | 5.71 | 17.46 | 20.42 | 26.10 | 32.65 | 39.90 | 47.19 | 49.68 | 37.93 | 29.69 | 16.03 | 15.81 | 33.26 | |||||||||||||
YRS | 39 | 45 | 43 | 46 | 40 | 39 | 36 | 37 | 38 | 38 | 42 | 37 | 17 |