YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1910 | ----- | z | ----- | z | ----- | z | 52.58 | f | 59.98 | 63.17 | 70.97 | 64.44 | 59.90 | 45.40 | j | 35.68 | 30.18 | f | 59.02 | f | ||||||
1911 | 20.93 | a | 25.68 | 38.87 | 47.63 | 53.56 | 64.32 | 69.29 | 66.11 | 56.52 | 45.45 | 28.82 | 27.69 | e | 45.41 | |||||||||||
1912 | 20.52 | 31.62 | 34.92 | 47.12 | 55.66 | 65.18 | 63.95 | c | 63.27 | a | 53.57 | 41.90 | 34.73 | 27.40 | 44.99 | |||||||||||
1913 | 19.29 | 19.83 | b | 33.16 | 47.17 | 54.21 | 62.21 | b | 65.93 | i | 67.82 | f | 56.52 | 42.47 | 34.53 | 28.89 | 39.83 | b | ||||||||
1914 | 30.15 | 28.34 | 39.79 | 49.72 | 56.06 | 60.39 | b | 69.26 | 69.50 | b | 55.10 | 47.65 | a | 37.62 | a | 18.68 | 46.85 | |||||||||
1915 | 20.87 | 33.57 | 42.47 | 52.43 | 55.90 | 61.50 | a | 65.39 | 72.13 | 55.97 | 47.03 | 31.63 | 26.47 | a | 47.11 | |||||||||||
1916 | 9.52 | 28.16 | 37.00 | 47.30 | 51.62 | a | 60.05 | 64.03 | 66.80 | a | 57.73 | b | 43.58 | 29.02 | 16.69 | 42.62 | ||||||||||
1917 | 18.95 | 26.07 | 29.74 | 42.43 | 54.23 | a | 58.46 | c | 69.35 | 69.37 | 59.13 | 46.81 | 38.50 | 26.50 | 44.96 | |||||||||||
1918 | 26.40 | 24.29 | 36.68 | 48.50 | a | 52.56 | 65.15 | 70.28 | a | 63.74 | 63.32 | 47.34 | c | 34.42 | 27.67 | a | 46.70 | |||||||||
1919 | 26.00 | 29.00 | a | 36.24 | 48.29 | a | 55.53 | a | 59.38 | 69.97 | a | 69.42 | 58.38 | 43.12 | a | 29.53 | a | 19.48 | a | 45.36 | ||||||
1920 | 21.21 | 28.90 | 36.84 | 43.17 | a | 52.15 | 59.34 | a | 72.23 | c | 68.03 | 57.13 | 43.94 | 34.95 | a | 30.60 | 45.71 | |||||||||
1921 | 26.67 | b | 30.00 | 37.42 | 44.67 | 57.62 | a | 63.43 | a | 68.18 | 68.48 | 52.55 | 48.06 | 33.77 | 22.13 | 46.08 | ||||||||||
1922 | 18.05 | 18.09 | 33.35 | 45.34 | a | 53.85 | 67.65 | 71.35 | 69.90 | a | 59.88 | 48.58 | 32.35 | 18.44 | 44.74 | |||||||||||
1923 | 26.42 | 21.00 | 36.37 | 48.31 | a | 54.66 | 61.83 | 70.40 | a | 68.19 | 60.78 | 47.65 | 33.98 | 28.22 | a | 46.48 | ||||||||||
1924 | 17.08 | 35.38 | 38.61 | 46.23 | 60.68 | 62.22 | 71.23 | 67.88 | e | 59.87 | 46.24 | 33.17 | 16.41 | c | 46.25 | |||||||||||
1925 | 22.52 | a | 34.80 | 39.11 | 51.05 | b | 58.28 | a | 64.38 | a | 72.19 | 66.27 | 59.77 | 44.11 | 33.67 | 34.00 | s | 49.65 | a | |||||||
1926 | 25.58 | a | 33.73 | b | 41.38 | a | 50.72 | 53.77 | 63.37 | 72.47 | 66.11 | 52.08 | 46.48 | 36.12 | a | 26.66 | b | 47.37 | ||||||||
1927 | 23.95 | a | 28.71 | 36.73 | 45.15 | 50.60 | a | 62.70 | 68.47 | 68.00 | 56.58 | 45.77 | 33.57 | 16.15 | a | 44.70 | ||||||||||
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 | 3.69 | 28.57 | 38.63 | 50.40 | 54.32 | 60.45 | a | 69.83 | a | 71.07 | a | 61.96 | b | 43.90 | a | 32.19 | a | 27.74 | 45.23 | |||||||
1931 | 30.31 | 28.45 | 39.08 | a | 47.63 | 58.68 | 61.05 | b | 70.21 | b | 68.73 | 55.60 | 44.89 | 30.62 | 25.15 | 46.70 | ||||||||||
1932 | 20.72 | a | 23.02 | 33.56 | ----- | z | 56.05 | 66.35 | 67.08 | 69.25 | a | 59.93 | a | 46.71 | 35.93 | 24.07 | d | 45.70 | a | |||||||
1933 | 26.15 | a | 19.02 | a | 35.24 | 46.88 | 53.45 | 63.10 | 70.15 | 70.68 | 54.43 | 46.63 | 37.36 | a | 31.26 | 46.20 | ||||||||||
1934 | 29.80 | d | 32.31 | b | 41.56 | 55.30 | 58.45 | 65.12 | 70.34 | b | 70.95 | 55.00 | 44.93 | b | 40.45 | 28.22 | a | 49.37 | ||||||||
1935 | 24.23 | 30.02 | 33.95 | 44.10 | 55.58 | 60.77 | f | 69.48 | 67.84 | 61.73 | 44.56 | 31.55 | a | 30.21 | 44.84 | a | ||||||||||
1936 | 25.92 | 11.00 | a | 34.82 | 49.67 | 60.85 | 64.65 | 70.82 | 69.52 | 58.82 | 52.37 | a | 31.56 | d | 28.55 | 46.55 | ||||||||||
1937 | 6.18 | 24.50 | 39.37 | 46.33 | 57.63 | 65.07 | 72.84 | 66.06 | 61.83 | 50.03 | 37.28 | c | 29.10 | 46.35 | ||||||||||||
1938 | 27.44 | 30.18 | 37.73 | 48.92 | 57.39 | 68.55 | 75.05 | c | 67.26 | 66.71 | a | 49.10 | 31.55 | 25.03 | a | 48.74 | ||||||||||
1939 | 28.89 | 23.93 | 37.10 | a | 51.55 | 58.68 | c | 59.14 | a | 70.34 | 70.63 | 60.33 | 46.19 | b | 36.22 | a | 32.98 | 48.00 | ||||||||
1940 | 25.73 | 31.33 | 42.00 | 49.55 | 58.71 | 66.60 | a | 70.50 | 67.53 | 63.85 | 49.31 | 30.37 | 28.18 | 48.64 | ||||||||||||
1941 | 29.38 | a | 32.23 | 43.40 | a | 51.35 | 57.44 | 62.63 | 72.12 | a | 66.29 | 53.68 | 45.63 | 37.40 | 30.45 | 48.50 | ||||||||||
1942 | 22.16 | 31.04 | 38.90 | 49.98 | 54.35 | 59.15 | 68.89 | 69.79 | 61.17 | 47.84 | 31.70 | 27.77 | 46.90 | |||||||||||||
1943 | 15.76 | 30.95 | 32.35 | 49.20 | 52.21 | 58.25 | 68.13 | 66.07 | a | 60.40 | 48.52 | 35.90 | a | 23.55 | 45.11 | |||||||||||
1944 | 21.81 | 28.10 | 35.10 | 49.13 | 56.17 | a | 61.98 | 69.89 | 66.11 | 62.22 | 50.19 | 36.13 | 23.35 | 46.68 | ||||||||||||
1945 | 25.87 | 30.20 | a | 37.24 | b | 44.27 | 57.18 | 61.93 | 71.29 | 70.76 | 57.90 | 47.65 | 32.90 | a | 26.29 | 46.96 | ||||||||||
1946 | 25.19 | 29.34 | 39.15 | 47.81 | a | 57.84 | 59.57 | 67.77 | a | 64.15 | g | 52.23 | f | 41.02 | h | 27.71 | f | 23.16 | 43.73 | d | ||||||
1947 | 17.59 | c | 27.15 | b | 38.54 | d | 45.94 | f | ----- | z | 58.35 | 65.09 | d | 62.71 | 57.19 | a | 46.82 | 32.68 | 28.32 | 43.45 | b | |||||
1948 | 21.95 | 24.78 | ----- | z | ----- | z | ----- | z | 67.78 | a | 65.39 | 63.77 | 58.00 | 43.06 | 33.02 | 17.47 | b | 43.91 | c | |||||||
1949 | 7.68 | 21.50 | 35.82 | 49.33 | 59.60 | a | 61.60 | 67.22 | a | 66.55 | a | 60.09 | a | 43.73 | 38.00 | 24.24 | 44.61 | |||||||||
1950 | 4.97 | a | 26.89 | 33.15 | 43.98 | 53.94 | 63.35 | 70.63 | 69.82 | 61.55 | 45.55 | 33.90 | 32.61 | 45.03 | ||||||||||||
1951 | 23.27 | 28.00 | 33.29 | 48.58 | 57.03 | 61.12 | 69.87 | 67.95 | 59.05 | 46.29 | 33.10 | 19.97 | 45.63 | |||||||||||||
1952 | 23.05 | 31.66 | 39.85 | 51.47 | 57.85 | 61.50 | 68.87 | 69.02 | a | 62.90 | 51.63 | 30.95 | 31.26 | 48.33 | ||||||||||||
1953 | 33.44 | 33.66 | 40.63 | 45.38 | a | 55.82 | 60.48 | 69.17 | a | 68.04 | c | 59.40 | a | 47.42 | 37.92 | 29.39 | 48.39 | |||||||||
1954 | 22.98 | 34.10 | b | 36.66 | 44.42 | d | 56.55 | 59.02 | 65.73 | 64.56 | 58.05 | 43.94 | 40.62 | 29.32 | 46.33 | |||||||||||
1955 | 27.65 | 26.36 | 29.26 | 42.00 | 51.73 | 62.85 | 65.61 | 66.97 | 58.63 | 47.18 | 27.62 | 21.52 | 43.95 | |||||||||||||
1956 | 26.53 | 22.77 | a | 34.23 | 49.32 | 58.82 | 59.85 | 69.64 | b | 69.05 | 60.02 | 46.15 | 30.45 | 27.15 | 46.16 | |||||||||||
1957 | 11.90 | 24.59 | 37.60 | 48.18 | 62.13 | 62.60 | 65.71 | 63.24 | 62.42 | 45.63 | 34.00 | 30.19 | 45.68 | |||||||||||||
1958 | 30.79 | 36.14 | n | 39.92 | g | 46.93 | 62.08 | 66.48 | 71.53 | 71.68 | 57.75 | 45.92 | 30.85 | 28.77 | 51.28 | b | ||||||||||
1959 | 24.97 | 27.18 | 36.85 | 47.73 | 52.50 | 61.25 | 68.40 | 63.68 | 56.40 | 45.10 | 29.20 | 25.48 | 44.90 | |||||||||||||
1960 | 19.15 | 29.07 | 36.50 | 45.65 | 51.06 | 61.30 | 71.23 | 63.53 | 57.95 | 46.69 | 32.98 | 24.92 | 45.00 | |||||||||||||
1961 | 27.23 | 34.45 | 39.23 | 44.95 | 54.77 | a | 65.53 | 68.11 | 68.47 | 54.16 | a | 42.39 | 28.45 | a | 23.77 | 45.96 | ||||||||||
1962 | 17.31 | 29.41 | 34.65 | 48.02 | 52.79 | 60.23 | 65.55 | 63.28 | a | 58.00 | a | 45.56 | 37.10 | 30.50 | 45.20 | |||||||||||
1963 | 20.15 | 31.41 | 39.05 | 45.22 | 54.42 | 62.02 | 64.58 | 66.61 | 62.18 | 48.10 | a | 34.08 | 25.27 | 46.09 | ||||||||||||
1964 | 27.26 | 28.00 | 33.58 | 44.00 | 52.40 | 60.65 | 66.05 | 60.92 | 53.83 | 44.13 | 32.98 | 20.58 | 43.70 | |||||||||||||
1965 | 26.97 | 27.68 | 30.62 | a | 45.50 | 50.66 | 61.82 | 69.02 | 68.19 | 53.37 | 48.26 | 36.25 | 28.69 | 45.58 | ||||||||||||
1966 | 26.79 | 31.75 | 37.32 | 46.16 | a | 55.52 | 59.65 | 67.10 | a | 66.95 | 62.27 | 45.48 | 36.32 | 32.15 | 47.29 | |||||||||||
1967 | 29.61 | 32.54 | 36.27 | a | 42.92 | 54.92 | 65.07 | 69.72 | a | 71.89 | 64.50 | 45.84 | 35.18 | 24.77 | a | 47.77 | ||||||||||
1968 | 25.55 | 31.84 | 41.16 | 44.00 | a | 53.63 | 59.52 | 68.34 | 63.47 | 56.98 | 42.67 | a | 33.68 | 21.56 | 45.20 | |||||||||||
1969 | 14.53 | a | 26.55 | 37.29 | 47.47 | 56.53 | 65.57 | 65.53 | 65.76 | 57.10 | 43.34 | 35.26 | a | 29.16 | 45.34 | |||||||||||
1970 | 23.94 | 32.77 | 37.79 | 43.08 | 56.53 | 65.47 | 69.39 | 67.55 | 54.03 | 43.21 | 31.48 | a | 23.70 | c | 45.74 | |||||||||||
1971 | 24.16 | 30.78 | a | 32.63 | a | 45.47 | 56.47 | 58.47 | 66.82 | 71.19 | 53.38 | 43.63 | 34.90 | 20.03 | 44.83 | |||||||||||
1972 | 18.31 | 28.45 | 38.63 | 43.28 | 57.37 | 61.55 | 64.37 | 69.62 | a | 53.73 | 44.60 | 36.22 | ----- | z | 46.92 | a | ||||||||||
1973 | 22.10 | 31.61 | 39.53 | 46.57 | a | 55.65 | 61.57 | a | 69.79 | 68.29 | 59.45 | 45.44 | 32.09 | b | 31.53 | 46.97 | ||||||||||
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 | 7.85 | 26.84 | 39.03 | 44.82 | 55.50 | 63.18 | 69.62 | a | 69.27 | a | 60.30 | 49.03 | 29.13 | 31.20 | a | 45.48 | ||||||||||
1980 | 17.44 | 30.62 | 37.00 | a | 50.28 | a | 58.00 | 59.97 | 66.53 | 63.11 | 56.53 | 46.84 | 35.47 | a | 28.61 | 45.87 | ||||||||||
1981 | 31.47 | 31.89 | 42.39 | 45.92 | 55.92 | 57.97 | a | 65.34 | 69.65 | 58.22 | 43.47 | 36.37 | 26.06 | 47.05 | ||||||||||||
1982 | 23.05 | 26.61 | a | 38.10 | 43.82 | 55.07 | a | 65.86 | a | 65.87 | a | 66.02 | 58.33 | 45.00 | 28.67 | d | 24.97 | 45.11 | ||||||||
1983 | 29.89 | 33.82 | 42.13 | 47.48 | 57.06 | 60.74 | a | 63.39 | 67.89 | 54.75 | 44.69 | 38.97 | 15.12 | a | 46.33 | |||||||||||
1984 | 23.66 | 31.00 | a | 40.94 | 46.18 | 51.56 | 60.12 | 69.03 | 67.87 | 53.23 | 41.47 | 32.43 | a | 17.10 | 44.55 | |||||||||||
1985 | 21.23 | 23.80 | 35.97 | a | 46.97 | 57.21 | 63.78 | a | 73.78 | a | 65.17 | a | 52.93 | 43.05 | 21.16 | a | 19.53 | 43.71 | ||||||||
1986 | 28.71 | 29.36 | 41.71 | 46.55 | a | 53.25 | e | 65.12 | e | 64.43 | d | 72.89 | c | 54.54 | d | 45.63 | h | ----- | z | ----- | z | 50.73 | c | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.41 | 28.39 | 37.24 | 47.11 | 55.74 | 62.31 | 68.70 | 67.51 | 58.14 | 45.91 | 33.63 | 25.58 | 46.05 | |||||||||||||
S.D. | 6.56 | 4.46 | 3.13 | 2.72 | 2.70 | 2.61 | 2.62 | 2.66 | 3.30 | 2.31 | 3.36 | 4.62 | 1.36 | |||||||||||||
SKEW | -1.07 | -1.20 | -0.34 | 0.38 | 0.18 | 0.38 | -0.13 | -0.28 | 0.13 | 0.43 | -0.61 | -0.57 | 0.25 | |||||||||||||
MAX | 33.44 | 35.38 | 43.40 | 55.30 | 62.13 | 68.55 | 75.05 | 72.89 | 66.71 | 52.37 | 40.62 | 32.98 | 49.37 | |||||||||||||
MIN | 3.69 | 11.00 | 29.26 | 42.00 | 50.60 | 57.97 | 63.39 | 60.92 | 52.08 | 41.47 | 21.16 | 15.12 | 42.62 | |||||||||||||
YRS | 69 | 68 | 67 | 66 | 68 | 69 | 69 | 68 | 69 | 67 | 68 | 66 | 59 |