YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1912 | 29.93 | a | 30.52 | 42.13 | 41.80 | 49.68 | 63.77 | 66.35 | 66.97 | 57.70 | 50.68 | 39.23 | 29.23 | 47.33 | ||||||||||||
1913 | 28.47 | a | 37.21 | 37.94 | 46.37 | 50.35 | 58.60 | 68.87 | 68.39 | 62.27 | 47.06 | 46.07 | 35.81 | 48.95 | ||||||||||||
1914 | 36.10 | 36.07 | 44.32 | 46.87 | 52.10 | 65.67 | 71.29 | 70.26 | 65.57 | 52.68 | 47.53 | 37.77 | 52.19 | |||||||||||||
1915 | 34.48 | 37.43 | 38.45 | 44.40 | 46.48 | 59.47 | 68.68 | 71.06 | 60.60 | 51.45 | 37.47 | 33.45 | 48.62 | |||||||||||||
1916 | 38.71 | 41.07 | 43.90 | 44.50 | 47.81 | 59.30 | 70.03 | 68.90 | 62.70 | 55.22 | v | ----- | z | ----- | z | 52.99 | c | |||||||||
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 | ----- | 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 | 55.78 | u | 51.55 | 40.03 | 39.26 | 43.61 | i | |||
1935 | 38.26 | 42.32 | 39.94 | 45.87 | 50.52 | 62.47 | 70.48 | 69.90 | 63.07 | 47.61 | 36.20 | 35.26 | 50.16 | |||||||||||||
1936 | 30.23 | 37.41 | 41.55 | 46.17 | 55.06 | 64.80 | 72.94 | 69.03 | 61.47 | 49.71 | 43.67 | 32.94 | 50.41 | |||||||||||||
1937 | 25.35 | 33.15 | a | 37.10 | 40.27 | 51.90 | 60.83 | 70.03 | 70.84 | 66.00 | 49.94 | 36.93 | 38.00 | 48.36 | ||||||||||||
1938 | 33.29 | 37.82 | 38.13 | 44.00 | 49.16 | 61.17 | 67.68 | 66.77 | 63.63 | 49.07 | a | 34.38 | a | 35.45 | 48.38 | |||||||||||
1939 | 34.55 | 29.04 | 39.61 | 46.90 | a | 53.55 | 63.60 | 72.13 | 69.38 | b | 66.43 | 51.26 | 50.07 | 38.39 | 51.24 | |||||||||||
1940 | 36.94 | 37.46 | a | 42.32 | 48.03 | 57.61 | 65.23 | 70.52 | 69.84 | 65.90 | 54.03 | 40.40 | 42.81 | 52.59 | ||||||||||||
1941 | 38.16 | 42.50 | 41.26 | 41.97 | 52.19 | 59.40 | 70.10 | 69.06 | 61.80 | 49.77 | 42.07 | 35.65 | 50.33 | |||||||||||||
1942 | 36.00 | 32.57 | 35.65 | 43.60 | 49.48 | 59.67 | 73.52 | 70.35 | 64.23 | 52.13 | 42.33 | 35.65 | 49.60 | |||||||||||||
1943 | 38.00 | 40.79 | 43.06 | 48.70 | 54.45 | 64.87 | 72.71 | 70.97 | 65.47 | 54.00 | 41.90 | 38.10 | 52.75 | |||||||||||||
1944 | 32.55 | 36.00 | 38.74 | 43.87 | 54.13 | 60.43 | 71.19 | 72.06 | 64.40 | 54.65 | 40.47 | 35.32 | 50.32 | |||||||||||||
1945 | 34.39 | 34.68 | 37.68 | 43.53 | 52.65 | 57.67 | 73.29 | 72.19 | 63.43 | 54.10 | 35.33 | 30.94 | 49.16 | |||||||||||||
1946 | 33.52 | 30.25 | 39.71 | 50.57 | 52.71 | 64.30 | 71.68 | 70.68 | 66.27 | 47.58 | 36.20 | 36.68 | 50.01 | |||||||||||||
1947 | 33.45 | 37.14 | 40.13 | 45.50 | 58.48 | 62.73 | 72.42 | 71.13 | 66.07 | 51.16 | 38.70 | 32.74 | 50.80 | |||||||||||||
1948 | 30.94 | 34.79 | 38.39 | 46.67 | 52.45 | 63.33 | 71.97 | 70.68 | 67.17 | 60.39 | 33.80 | 36.03 | 50.55 | |||||||||||||
1949 | 33.13 | a | 33.14 | 38.61 | 47.33 | 51.00 | 64.17 | 71.26 | 66.61 | 68.27 | 50.03 | 43.70 | 34.42 | 50.14 | ||||||||||||
1950 | 31.67 | a | 38.11 | 39.87 | 47.90 | 50.23 | 60.03 | 69.77 | 66.81 | 58.57 | 53.90 | 40.20 | 33.45 | 49.21 | ||||||||||||
1951 | 32.06 | 34.43 | 38.00 | 46.63 | 52.26 | 55.70 | 70.13 | 69.29 | 61.43 | 52.74 | 40.80 | 35.55 | 49.09 | |||||||||||||
1952 | 34.55 | 32.59 | 36.19 | 46.23 | 52.87 | 59.97 | a | 67.97 | 70.94 | 64.60 | 51.35 | 38.47 | 32.55 | 49.02 | ||||||||||||
1953 | 30.77 | 30.25 | 40.39 | 44.30 | 47.13 | 62.10 | 73.16 | 69.90 | 60.77 | 50.35 | 41.23 | 27.74 | 48.18 | |||||||||||||
1954 | 33.97 | 41.00 | 42.03 | a | 49.03 | 55.65 | 62.27 | 72.13 | 69.16 | 65.33 | 53.55 | 39.97 | 33.58 | 51.47 | ||||||||||||
1955 | 30.45 | 28.82 | 38.10 | 40.97 | 50.87 | 59.63 | 68.74 | 69.45 | 60.43 | 52.97 | 36.79 | b | 33.39 | 47.55 | ||||||||||||
1956 | 35.68 | 30.38 | 34.90 | 43.73 | 52.81 | 66.20 | 69.39 | 66.81 | 63.72 | a | 48.19 | 36.54 | b | 31.21 | c | 48.30 | ||||||||||
1957 | 39.45 | 42.96 | 41.65 | 42.21 | b | 50.35 | 65.83 | 73.84 | 70.55 | b | 61.72 | a | 52.94 | 37.34 | a | 35.42 | 51.19 | |||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | 32.29 | 32.21 | 36.10 | 48.77 | 51.58 | 67.00 | 71.83 | a | 69.23 | 61.70 | 50.65 | 41.87 | 36.81 | 50.00 | ||||||||||||
1960 | 30.74 | 29.69 | 38.94 | 42.60 | 49.32 | 62.50 | 69.97 | 70.65 | 63.86 | i | 49.52 | 38.77 | 29.86 | b | 46.60 | a | ||||||||||
1961 | 38.03 | 35.96 | 40.65 | 45.97 | 51.32 | 67.43 | 72.35 | 70.77 | 62.80 | 50.94 | 39.60 | 36.10 | 50.99 | |||||||||||||
1962 | 34.35 | 38.25 | 34.35 | 46.57 | 49.90 | 59.03 | 70.61 | 69.74 | 67.50 | 50.90 | 41.73 | 37.61 | 50.05 | |||||||||||||
1963 | 31.00 | 38.54 | 38.39 | c | 42.40 | 55.10 | 58.28 | a | 72.77 | 69.94 | 67.03 | 54.45 | 41.68 | b | 31.23 | 50.07 | ||||||||||
1964 | 25.40 | a | 26.76 | 35.84 | 43.93 | 50.60 | a | 61.52 | a | 72.45 | b | 69.39 | 62.75 | b | 52.87 | 36.27 | 34.13 | 47.66 | ||||||||
1965 | 35.03 | 33.35 | e | 35.58 | 44.77 | 47.74 | 55.83 | 71.26 | 68.87 | 61.03 | 50.65 | 45.27 | 39.06 | 49.04 | ||||||||||||
1966 | 31.00 | 32.50 | 38.84 | 44.50 | 55.29 | 62.20 | 71.35 | 71.13 | 64.93 | 48.55 | 40.60 | 31.55 | 49.37 | |||||||||||||
1967 | 28.77 | 34.14 | 41.23 | 42.97 | 50.77 | 62.10 | 71.87 | 70.77 | 65.57 | 51.90 | 43.07 | 33.16 | 49.69 | |||||||||||||
1968 | 36.06 | 43.10 | 42.39 | 44.30 | 50.94 | 61.60 | 69.68 | 66.52 | 62.20 | 48.90 | 39.80 | 30.45 | 49.66 | |||||||||||||
1969 | 38.65 | 35.61 | 34.55 | 45.07 | 54.58 | 60.73 | 72.52 | 72.68 | 65.93 | 48.16 | 44.67 | 36.03 | 50.76 | |||||||||||||
1970 | 30.52 | 38.71 | 38.26 | 39.60 | 53.74 | 63.47 | 72.26 | 70.52 | 61.73 | 45.84 | 39.17 | 33.10 | 48.91 | |||||||||||||
1971 | 29.55 | 32.64 | 37.84 | 43.67 | 49.42 | 61.53 | 73.55 | 69.42 | 62.93 | 51.16 | 39.23 | 34.65 | 48.80 | |||||||||||||
1972 | 29.84 | 33.21 | 42.65 | 42.93 | 51.35 | 64.43 | 71.55 | 68.68 | 62.90 | 54.65 | 36.33 | 34.42 | 49.41 | |||||||||||||
1973 | 32.06 | 40.04 | 38.19 | 42.53 | 54.94 | 64.00 | 69.68 | 70.23 | 60.33 | 49.13 | 38.47 | 31.65 | 49.27 | |||||||||||||
1974 | 34.97 | 32.64 | 43.06 | 45.07 | 54.10 | 67.03 | 71.29 | 69.39 | 65.90 | 57.52 | 40.97 | 30.23 | 51.01 | |||||||||||||
1975 | 32.35 | 33.18 | 38.77 | 41.50 | 50.74 | 60.50 | 71.32 | 70.06 | 65.90 | 50.00 | 37.70 | 34.45 | 48.87 | |||||||||||||
1976 | 31.71 | 41.34 | 39.58 | 45.93 | 55.42 | 62.93 | 71.29 | 69.48 | 63.17 | 52.26 | 42.77 | 34.23 | 50.84 | |||||||||||||
1977 | 36.73 | a | 35.68 | 36.87 | 46.63 | 51.61 | 64.43 | 74.00 | 72.74 | 67.20 | 57.65 | 40.47 | 38.42 | 51.87 | ||||||||||||
1978 | 38.23 | a | 39.11 | 45.42 | 43.67 | 52.13 | 62.60 | 71.74 | 69.68 | 66.67 | 56.45 | 44.17 | 35.26 | 52.09 | ||||||||||||
1979 | 35.57 | a | 35.50 | 39.10 | 43.53 | 54.35 | 64.30 | 70.45 | 66.42 | 66.90 | 51.03 | 37.03 | 35.77 | 50.00 | ||||||||||||
1980 | 38.65 | 41.93 | 40.74 | 45.47 | 51.10 | 62.30 | 74.29 | 69.52 | 64.03 | 53.13 | 40.20 | 38.29 | 51.64 | |||||||||||||
1981 | 39.97 | 39.04 | 42.32 | 50.90 | 55.45 | 69.33 | 72.65 | 73.94 | 65.70 | 52.23 | 42.27 | 35.68 | 53.29 | |||||||||||||
1982 | 36.27 | a | 39.57 | 41.52 | 46.57 | 53.00 | 59.47 | 71.65 | 71.52 | 64.83 | 47.13 | 45.17 | 35.93 | a | 51.05 | |||||||||||
1983 | 36.19 | 38.32 | 42.45 | 42.17 | 51.48 | 59.93 | 70.97 | 68.94 | 68.27 | 54.68 | 40.60 | 36.90 | 50.91 | |||||||||||||
1984 | 35.48 | 33.28 | 38.03 | 44.37 | 58.87 | 65.93 | 71.03 | 69.74 | 67.57 | 51.68 | 39.07 | 37.42 | 51.04 | |||||||||||||
1985 | 37.84 | 35.61 | 40.97 | 48.37 | 56.48 | 63.73 | 72.39 | 70.77 | 60.57 | 53.74 | 40.67 | 32.35 | 51.12 | |||||||||||||
1986 | 37.90 | 39.54 | 45.45 | 49.10 | 55.84 | 67.77 | 70.35 | 71.94 | 59.47 | 50.13 | 43.20 | 34.68 | 52.11 | |||||||||||||
1987 | 32.55 | 38.86 | 40.84 | 51.53 | 56.87 | 66.40 | 68.77 | 70.60 | a | 63.87 | 58.45 | 42.43 | 34.87 | 52.17 | ||||||||||||
1988 | 34.23 | 39.45 | 40.19 | 49.43 | 55.32 | 65.80 | 73.74 | 72.52 | 62.33 | 58.48 | 40.67 | 35.00 | 52.26 | |||||||||||||
1989 | 34.58 | 40.32 | 45.48 | 51.77 | 56.10 | 64.97 | 74.13 | a | 71.29 | 66.73 | 54.03 | 41.77 | 34.13 | 52.94 | ||||||||||||
1990 | 33.00 | a | 36.00 | a | 44.97 | 51.17 | 56.48 | 68.93 | 71.97 | 67.71 | 66.90 | 52.55 | 44.17 | 35.61 | 52.45 | |||||||||||
1991 | 36.39 | 42.75 | 39.71 | 43.40 | 52.03 | 59.83 | 72.58 | 72.61 | 65.97 | 55.00 | 41.23 | 41.23 | 51.89 | |||||||||||||
1992 | 38.16 | 42.66 | 43.50 | a | 48.20 | 58.84 | 63.03 | 69.26 | 70.10 | 65.50 | 53.42 | 35.97 | 37.32 | 52.16 | ||||||||||||
1993 | 42.74 | 40.54 | 42.61 | 45.53 | 56.39 | 61.60 | 71.77 | 71.10 | 62.60 | 54.61 | 39.97 | 35.16 | 52.05 | |||||||||||||
1994 | 31.37 | a | 37.11 | a | 44.68 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.72 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.11 | 36.36 | 40.00 | 45.44 | 52.75 | 62.63 | 71.30 | 69.95 | 64.01 | 52.02 | 40.39 | 34.91 | 50.35 | |||||||||||||
S.D. | 3.52 | 4.07 | 2.82 | 2.83 | 2.89 | 3.01 | 1.69 | 1.64 | 2.52 | 2.98 | 3.18 | 2.83 | 1.48 | |||||||||||||
SKEW | -0.16 | -0.21 | 0.07 | 0.35 | 0.14 | 0.01 | -0.50 | -0.28 | -0.34 | 0.46 | 0.37 | 0.00 | -0.02 | |||||||||||||
MAX | 42.74 | 43.10 | 45.48 | 51.77 | 58.87 | 69.33 | 74.29 | 73.94 | 68.27 | 60.39 | 50.07 | 42.81 | 53.29 | |||||||||||||
MIN | 25.35 | 26.76 | 34.35 | 39.60 | 46.48 | 55.70 | 66.35 | 66.42 | 57.70 | 45.84 | 33.80 | 27.74 | 47.33 | |||||||||||||
YRS | 64 | 64 | 64 | 63 | 63 | 63 | 63 | 63 | 62 | 63 | 63 | 63 | 61 |