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 | 54.35 | 47.45 | a | 42.32 | 31.00 | b | 26.57 | c | 40.34 | g | ||
1916 | ----- | z | 28.72 | b | ----- | z | ----- | z | 41.38 | a | 51.42 | 56.55 | a | 54.58 | 48.93 | 40.43 | d | 30.83 | a | 19.33 | d | 41.35 | c | |||
1917 | 20.23 | 24.57 | 21.52 | 31.90 | 38.52 | b | 50.21 | a | 58.90 | a | 53.97 | 50.37 | 41.68 | 36.38 | 29.87 | 38.18 | ||||||||||
1918 | 20.00 | a | 25.74 | a | 32.21 | 33.13 | 42.45 | a | 56.57 | 56.20 | a | 54.95 | a | 49.59 | a | 42.70 | c | 28.40 | 23.16 | 38.76 | ||||||
1919 | 23.26 | ----- | z | 27.32 | a | 37.71 | b | 45.84 | 51.93 | 58.32 | 57.11 | 52.10 | a | 36.19 | 30.97 | a | 26.16 | 40.63 | a | |||||||
1920 | 28.13 | 25.86 | 24.60 | a | 27.36 | b | 43.00 | a | 49.83 | 57.07 | a | 54.08 | f | 48.04 | f | 38.97 | a | 31.17 | a | 21.94 | 34.79 | b | ||||
1921 | 23.81 | 24.36 | ----- | z | ----- | z | 44.22 | m | ----- | z | 56.03 | b | ----- | z | ----- | z | ----- | z | 36.56 | m | ----- | z | 34.73 | i | ||
1922 | ----- | z | ----- | z | 24.96 | f | 30.44 | e | 42.13 | a | 51.66 | a | ----- | z | ----- | z | 51.97 | ----- | z | ----- | z | ----- | z | 44.05 | h | |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | 25.07 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.07 | k | |
1925 | ----- | z | 27.75 | 32.68 | c | 39.07 | c | 47.63 | d | 40.81 | v | 58.72 | d | 54.25 | c | 49.32 | e | 39.10 | b | 30.17 | a | 26.27 | a | 40.50 | b | |
1926 | 21.28 | b | 28.19 | g | 28.08 | a | 37.77 | 42.50 | a | 51.00 | 54.85 | 56.60 | a | 49.58 | 43.43 | a | 32.48 | b | 23.12 | c | 40.06 | a | ||||
1927 | 26.66 | 24.27 | d | ----- | z | 35.34 | a | 43.74 | 50.40 | ----- | z | 52.77 | a | ----- | z | 41.32 | 33.46 | d | 17.65 | e | 36.18 | c | ||||
1928 | 23.89 | c | 23.00 | 28.93 | b | 31.79 | b | 44.68 | 48.90 | a | 55.91 | b | 53.94 | 50.43 | a | 43.12 | f | 29.59 | b | 21.78 | b | 37.53 | a | |||
1929 | 17.95 | a | 15.94 | b | 24.60 | 29.36 | a | 41.50 | 50.30 | 56.87 | 55.35 | 47.00 | 40.05 | a | 27.97 | a | 26.63 | 36.13 | ||||||||
1930 | 15.85 | d | 27.20 | a | 25.74 | 39.18 | 40.13 | 51.72 | 56.84 | 55.35 | 48.34 | a | 39.60 | 31.44 | c | 23.71 | 37.93 | |||||||||
1931 | 24.85 | a | 27.14 | 26.63 | 37.00 | 41.61 | 53.10 | a | 59.45 | 56.65 | 51.20 | 43.87 | a | 28.36 | b | 23.19 | 39.42 | |||||||||
1932 | 15.77 | 26.82 | a | 25.52 | 35.28 | a | 42.84 | 49.97 | 57.03 | 56.45 | 49.80 | 40.87 | 34.00 | 18.14 | b | 37.71 | ||||||||||
1933 | 20.71 | 15.71 | 28.13 | a | 30.20 | 38.56 | 52.76 | a | 58.82 | 56.45 | 52.87 | 43.68 | 35.28 | 30.48 | 38.64 | |||||||||||
1934 | 25.90 | 30.00 | a | 35.10 | 35.57 | 42.77 | 45.52 | a | 56.13 | 55.52 | 45.60 | 40.97 | 32.03 | 25.45 | 39.21 | |||||||||||
1935 | 26.39 | 27.57 | 25.98 | e | 34.07 | 40.52 | 51.87 | 57.44 | 56.66 | 50.18 | 39.85 | a | 30.77 | 25.60 | 38.91 | |||||||||||
1936 | 20.60 | 21.02 | 28.73 | 35.83 | 45.39 | 53.87 | 58.29 | 56.93 | a | 48.73 | 40.19 | 34.17 | a | 22.66 | 38.87 | |||||||||||
1937 | 12.12 | c | 19.91 | 26.13 | 33.63 | 45.31 | 50.67 | 56.87 | 57.52 | 51.63 | 42.81 | 33.02 | 26.35 | 38.00 | ||||||||||||
1938 | 23.03 | b | 23.58 | b | 27.35 | 34.70 | 41.45 | 51.48 | 54.65 | 57.90 | 51.40 | 41.39 | 27.23 | 26.10 | 38.36 | |||||||||||
1939 | 22.70 | a | 17.61 | 31.47 | a | 38.90 | 45.13 | 50.87 | 58.77 | a | 56.73 | 51.37 | 40.00 | a | 34.50 | 29.32 | 39.78 | |||||||||
1940 | 23.08 | 24.28 | 31.00 | 36.53 | 45.39 | 52.80 | 58.19 | 55.76 | 49.62 | a | 41.45 | a | 28.72 | 27.18 | 39.50 | |||||||||||
1941 | 24.58 | 28.04 | 29.60 | 33.07 | b | 44.13 | 47.17 | 54.42 | 52.97 | 44.63 | 37.26 | 31.47 | a | 24.10 | 37.62 | |||||||||||
1942 | 22.95 | 18.12 | 22.81 | 36.55 | 38.87 | 47.67 | 55.03 | 53.90 | 46.37 | c | 38.82 | 31.18 | 24.08 | 36.36 | ||||||||||||
1943 | 21.68 | 25.11 | 24.45 | a | 38.93 | 39.81 | 48.27 | d | 55.18 | 53.87 | 47.02 | 37.40 | a | 30.28 | 22.77 | 37.06 | ||||||||||
1944 | 19.98 | 19.67 | 21.44 | 29.33 | 40.03 | a | 45.81 | a | 52.65 | 51.38 | a | 46.20 | 38.39 | 25.60 | 21.56 | 34.34 | ||||||||||
1945 | 19.92 | 22.27 | b | ----- | z | 27.67 | 38.83 | a | 42.17 | a | 52.90 | a | 52.68 | 43.68 | 36.94 | 24.33 | 16.58 | a | 34.36 | a | ||||||
1946 | 15.56 | 20.02 | a | 26.11 | 35.80 | 35.22 | a | 46.02 | 52.00 | 50.90 | a | 44.60 | 31.78 | b | 23.75 | 22.40 | 33.68 | |||||||||
1947 | 14.73 | 21.00 | 22.82 | a | 28.90 | 41.70 | a | 43.95 | 54.71 | 53.53 | 50.00 | a | 41.18 | a | 27.55 | a | 25.00 | 35.42 | ||||||||
1948 | 29.11 | d | 29.96 | b | 31.86 | b | 43.57 | b | 51.10 | b | 55.07 | a | 62.62 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.33 | e |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.60 | 23.80 | 27.34 | 34.43 | 42.41 | 50.10 | 56.60 | 54.97 | 48.93 | 40.09 | 30.56 | 24.04 | 37.69 | |||||||||||||
S.D. | 4.18 | 4.03 | 3.57 | 3.97 | 3.17 | 3.26 | 2.27 | 1.84 | 2.50 | 2.61 | 3.11 | 3.42 | 1.71 | |||||||||||||
SKEW | -0.38 | -0.42 | 0.27 | -0.01 | 0.36 | -0.51 | 0.16 | -0.40 | -0.49 | -1.10 | -0.34 | -0.28 | -0.98 | |||||||||||||
MAX | 29.11 | 30.00 | 35.10 | 43.57 | 51.10 | 56.57 | 62.62 | 57.90 | 52.87 | 43.87 | 36.38 | 30.48 | 39.78 | |||||||||||||
MIN | 12.13 | 15.71 | 21.44 | 27.36 | 35.22 | 42.17 | 52.00 | 50.90 | 43.68 | 31.78 | 23.75 | 16.58 | 33.68 | |||||||||||||
YRS | 28 | 29 | 26 | 29 | 30 | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 20 |