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 | 12.55 | 12.55 | k | |
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 | 23.11 | a | 24.72 | b | ----- | z | 35.53 | p | 36.83 | ----- | z | 43.81 | 34.70 | 30.45 | 25.23 | 19.52 | 29.80 | d | ||||||
1921 | 12.10 | b | 11.07 | 25.73 | a | 25.90 | 29.23 | 38.07 | 47.66 | b | 44.19 | e | 33.20 | 29.94 | 23.31 | a | 22.25 | w | 29.13 | a | ||||||
1922 | 6.46 | g | 10.39 | 10.28 | b | 22.59 | a | 30.13 | a | 36.93 | 44.60 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.82 | f | ||
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 | ----- | 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 | 44.47 | ----- | z | ----- | z | ----- | z | 44.47 | k | |
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 | 25.13 | 22.61 | 23.87 | j | ||
1934 | 21.71 | 27.54 | 30.74 | 33.17 | 37.74 | 38.50 | 49.74 | 50.00 | 38.90 | 32.71 | 26.57 | 23.54 | g | 35.21 | a | |||||||||||
1935 | 15.86 | b | 21.25 | 19.33 | d | 30.00 | a | 33.53 | a | 43.80 | 45.84 | 48.90 | a | 43.04 | b | ----- | z | 22.23 | 20.03 | b | 31.26 | a | ||||
1936 | 22.90 | b | 20.69 | 24.00 | 30.76 | a | 35.93 | b | 43.03 | a | 49.19 | 47.83 | b | 37.67 | 31.39 | 25.21 | a | 20.10 | a | 32.39 | ||||||
1937 | 0.43 | a | 15.39 | 16.26 | 24.24 | a | 35.13 | 42.23 | 48.81 | 48.42 | 43.87 | 33.84 | 26.50 | 23.77 | 29.91 | |||||||||||
1938 | 22.03 | 17.11 | 21.16 | 26.73 | 33.45 | 40.93 | a | 46.87 | 47.23 | a | 43.23 | 30.61 | 22.10 | 21.90 | 31.11 | |||||||||||
1939 | 18.00 | 12.70 | a | 21.19 | 29.77 | 34.45 | 40.93 | 47.90 | 48.83 | a | 41.63 | 30.48 | 26.50 | 25.16 | 31.46 | |||||||||||
1940 | 24.61 | 22.52 | ----- | z | 29.14 | a | 36.97 | 44.67 | 45.74 | 47.30 | a | 40.20 | 32.06 | 24.52 | a | 23.29 | 33.73 | a | ||||||||
1941 | 21.26 | 24.21 | 23.74 | 23.87 | 34.90 | 37.40 | 45.40 | a | 43.97 | 35.40 | 29.00 | 26.30 | 20.29 | 30.48 | ||||||||||||
1942 | 17.84 | 19.74 | a | 20.13 | 26.90 | 30.39 | 39.83 | a | 48.23 | a | 45.52 | b | 36.28 | a | 32.23 | 27.50 | b | 22.03 | a | 30.55 | ||||||
1943 | 19.52 | 16.93 | 24.97 | 29.57 | 34.94 | 36.73 | 44.74 | 46.58 | 42.17 | 32.07 | a | 24.00 | 20.10 | 31.03 | ||||||||||||
1944 | 15.30 | a | 16.41 | 19.58 | 22.20 | 30.26 | 33.70 | 40.55 | 43.19 | 39.43 | 30.68 | 21.83 | 18.63 | a | 27.65 | |||||||||||
1945 | 16.58 | 20.43 | 14.06 | 23.63 | 31.16 | 37.27 | 46.23 | 46.10 | 40.43 | 33.10 | 22.43 | 19.29 | 29.23 | |||||||||||||
1946 | 16.19 | 13.32 | 20.65 | 26.73 | 32.16 | 39.10 | 45.52 | 46.45 | 41.17 | 28.55 | 19.87 | 22.10 | 29.32 | |||||||||||||
1947 | 14.71 | ----- | z | 25.26 | 28.23 | 35.81 | 39.80 | 45.48 | 44.68 | 42.87 | 32.84 | 20.53 | 15.16 | 31.40 | a | |||||||||||
1948 | 18.35 | 12.31 | 14.23 | 24.10 | a | 29.26 | 36.70 | 41.79 | g | 41.00 | 37.07 | 30.00 | 21.10 | 12.55 | 25.15 | a | ||||||||||
1949 | 0.80 | a | 5.04 | a | 13.77 | 24.27 | 29.28 | b | 39.93 | 43.55 | 41.52 | 38.97 | 25.23 | a | 22.65 | g | 9.94 | 24.75 | a | |||||||
1950 | 2.93 | a | 17.21 | 21.71 | 27.00 | 28.71 | 34.03 | 44.65 | 40.00 | 34.63 | 30.77 | 23.80 | 20.29 | 27.15 | ||||||||||||
1951 | 13.87 | 16.00 | 17.68 | 23.83 | 30.13 | 32.57 | 43.03 | 39.26 | 33.27 | 25.65 | 16.40 | 13.84 | 25.46 | |||||||||||||
1952 | 6.19 | 8.90 | 11.13 | 19.93 | 32.68 | 33.42 | f | 41.71 | 43.35 | 37.67 | 30.45 | 16.27 | 17.13 | 24.13 | a | |||||||||||
1953 | 25.50 | g | 23.50 | ----- | z | ----- | z | ----- | z | 44.05 | j | 54.65 | 50.47 | a | 38.95 | h | 29.26 | 22.23 | 14.32 | 32.40 | f | |||||
1954 | 13.94 | 19.18 | 19.65 | 28.83 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 20.40 | h | ||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.16 | 42.67 | f | 32.81 | 23.14 | a | 24.07 | a | 32.79 | h | ||
1956 | 24.73 | a | 14.45 | r | 25.40 | f | 26.79 | b | 34.35 | 43.12 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.62 | i | |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.50 | 48.42 | 46.13 | 38.07 | 31.17 | a | 22.90 | 21.52 | 36.10 | e | ||||||
1958 | 21.58 | 24.00 | 18.40 | a | 25.70 | 38.16 | 40.37 | 45.58 | 49.55 | 43.37 | 35.90 | 24.59 | a | 23.77 | 32.58 | |||||||||||
1959 | 22.93 | a | 20.15 | a | 27.71 | 32.80 | 36.42 | 47.73 | 55.03 | 49.16 | 42.50 | 36.03 | 27.30 | 24.10 | 35.16 | |||||||||||
1960 | 13.81 | 18.83 | 27.03 | 31.17 | 35.52 | 47.28 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.94 | f | |||||
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 15.93 | 17.61 | 20.52 | 26.84 | 33.23 | 39.71 | 46.63 | 45.95 | 39.37 | 31.09 | 23.37 | 19.54 | 30.25 | |||||||||||||
S.D. | 6.98 | 5.39 | 5.26 | 3.38 | 2.96 | 3.96 | 3.40 | 3.29 | 3.47 | 2.53 | 2.94 | 4.16 | 2.46 | |||||||||||||
SKEW | -0.94 | -0.40 | -0.19 | 0.06 | -0.05 | 0.28 | 0.82 | -0.37 | -0.28 | -0.31 | -0.81 | -0.76 | -0.08 | |||||||||||||
MAX | 24.73 | 27.54 | 30.74 | 33.17 | 38.16 | 47.73 | 55.03 | 51.16 | 44.47 | 36.03 | 27.50 | 25.16 | 35.16 | |||||||||||||
MIN | 0.43 | 5.04 | 10.28 | 19.93 | 28.71 | 32.57 | 40.55 | 39.26 | 33.20 | 25.23 | 16.27 | 9.94 | 25.46 | |||||||||||||
YRS | 25 | 26 | 25 | 26 | 25 | 25 | 24 | 26 | 25 | 25 | 26 | 26 | 14 |