YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1919 | 31.42 | 24.79 | 30.19 | r | 44.36 | b | 53.95 | c | 65.87 | 74.12 | g | 70.26 | 62.32 | 41.74 | 29.48 | b | 23.33 | a | 44.75 | b | ||||||
1920 | 30.63 | 28.86 | 34.67 | b | 34.90 | 53.60 | 62.48 | 69.03 | a | 65.48 | a | 60.08 | 48.36 | b | 33.07 | 27.81 | 45.75 | |||||||||
1921 | 27.47 | 28.75 | 38.50 | b | 41.90 | 50.93 | a | 64.87 | 71.02 | 69.11 | 60.65 | 51.63 | 37.28 | 28.48 | a | 47.55 | ||||||||||
1922 | 18.77 | 25.46 | c | 35.40 | 40.55 | 52.88 | a | 65.61 | b | 67.88 | a | 72.44 | g | 64.38 | a | 49.35 | 28.98 | d | 27.03 | 43.30 | a | |||||
1923 | 31.48 | 23.71 | b | 30.82 | 42.33 | 52.58 | 62.38 | b | 70.74 | 67.42 | a | 59.61 | b | 41.40 | 38.46 | c | 26.44 | 45.61 | ||||||||
1924 | 22.89 | 31.65 | c | 25.00 | c | 42.60 | e | 48.35 | a | 62.85 | 69.05 | 69.07 | a | 57.71 | a | 50.17 | b | 35.88 | f | 18.02 | h | 47.93 | b | |||
1925 | 24.98 | 34.96 | a | 38.95 | u | 49.04 | g | 55.06 | 63.97 | a | 71.10 | e | 68.15 | 62.38 | d | 39.16 | b | 34.46 | b | 26.19 | b | 48.04 | b | |||
1926 | 22.69 | 33.15 | b | 34.82 | a | 44.79 | a | 55.55 | a | 62.90 | i | 68.74 | 69.43 | a | 57.12 | a | 50.28 | a | 38.25 | 26.39 | 45.57 | a | ||||
1927 | 29.52 | c | 30.13 | a | 33.22 | b | 43.48 | a | 55.76 | b | 61.05 | 67.62 | c | 65.07 | b | 60.02 | a | 49.97 | 40.37 | d | 22.18 | 46.53 | ||||
1928 | 32.16 | 30.66 | 38.34 | 42.87 | 56.36 | b | 57.03 | a | 69.10 | 67.48 | 58.72 | a | 47.60 | a | 34.09 | a | 21.27 | 46.31 | ||||||||
1929 | 17.97 | a | 15.28 | a | 29.89 | h | 38.27 | b | 47.23 | e | 63.16 | e | 72.30 | d | 72.16 | 55.28 | 49.93 | d | 24.48 | 29.64 | i | 45.61 | b | |||
1930 | 9.58 | 34.55 | 32.34 | 52.12 | a | 50.78 | a | 64.47 | a | 72.47 | 69.66 | 59.65 | 45.98 | b | 36.34 | b | 28.97 | 46.41 | ||||||||
1931 | 31.55 | c | 33.81 | b | 32.61 | 44.74 | a | 52.24 | 69.68 | 74.06 | 69.98 | 65.45 | 49.77 | 32.85 | 31.60 | 49.03 | ||||||||||
1932 | 21.92 | 34.16 | 28.87 | 47.62 | 57.02 | 64.12 | 73.53 | 72.37 | 61.28 | 44.82 | 39.83 | 17.76 | 46.94 | |||||||||||||
1933 | 29.55 | 23.86 | 39.35 | 42.85 | 52.18 | 70.47 | 74.74 | 69.39 | 63.97 | 51.74 | 40.03 | 36.63 | 49.56 | |||||||||||||
1934 | 33.98 | 33.25 | 38.61 | 48.13 | 62.77 | 67.35 | 75.94 | 72.08 | 56.87 | 53.60 | 39.48 | 29.77 | 50.99 | |||||||||||||
1935 | 32.79 | 34.12 | 38.73 | 41.03 | 48.06 | 62.68 | 74.31 | 72.56 | 61.67 | 49.06 | 33.95 | 28.60 | 48.13 | |||||||||||||
1936 | 24.63 | 17.62 | 37.27 | 46.22 | 58.63 | 69.47 | 76.84 | 72.42 | 62.82 | 47.15 | 38.32 | 31.00 | 48.53 | |||||||||||||
1937 | 11.61 | 27.29 | 34.37 | 45.12 | 56.90 | 63.98 | 72.47 | 74.39 | 63.97 | 50.87 | 35.33 | 25.82 | 46.84 | |||||||||||||
1938 | 27.10 | 31.41 | 40.37 | 46.28 | 53.63 | 65.15 | 70.18 | 72.52 | 62.62 | 51.16 | 32.85 | 27.19 | 48.37 | |||||||||||||
1939 | 29.08 | 21.59 | 37.27 | 45.92 | 59.11 | 63.07 | 74.11 | 68.56 | 63.18 | 49.71 | 38.52 | 35.10 | 48.77 | |||||||||||||
1940 | 18.53 | 30.22 | 39.92 | 44.70 | 56.65 | 67.45 | 73.10 | 69.40 | 63.68 | 52.65 | 31.38 | 30.95 | a | 48.22 | ||||||||||||
1941 | 29.84 | 31.75 | 33.35 | 44.62 | 58.50 | 61.67 | 70.47 | 69.94 | 58.25 | 46.97 | 38.00 | 29.32 | 47.72 | |||||||||||||
1942 | 22.02 | 22.86 | 34.34 | 48.65 | 52.45 | 62.60 | 71.19 | 68.29 | 59.30 | 49.06 | 37.65 | 30.26 | 46.56 | |||||||||||||
1943 | 29.55 | 36.46 | 31.53 | 51.55 | 51.11 | 62.07 | 72.79 | 72.35 | 59.67 | 46.82 | 37.40 | 30.19 | 48.46 | |||||||||||||
1944 | 27.82 | 29.55 | 30.31 | 41.73 | 55.89 | 63.25 | 69.21 | 70.31 | 60.12 | 50.94 | 36.58 | 25.92 | 46.80 | |||||||||||||
1945 | 27.89 | 30.82 | 36.97 | 39.43 | 53.66 | 58.95 | 70.48 | 70.08 | 58.10 | 51.44 | 37.78 | 25.27 | 46.74 | |||||||||||||
1946 | 29.24 | 32.21 | 40.98 | 52.05 | 50.16 | 64.80 | 72.29 | 69.44 | 60.90 | 45.98 | 34.22 | 34.19 | 48.87 | |||||||||||||
1947 | 28.61 | 26.71 | 33.26 | 44.37 | 54.73 | 60.10 | 72.08 | 72.81 | 63.22 | 53.77 | 29.32 | 31.44 | 47.53 | |||||||||||||
1948 | 26.21 | 26.62 | 30.35 | 49.07 | 57.13 | 64.83 | 70.58 | 70.68 | 64.77 | 48.21 | 32.60 | a | 24.24 | 47.11 | ||||||||||||
1949 | 13.22 | b | 26.96 | b | 35.75 | a | 50.70 | h | 56.30 | d | 63.92 | 72.66 | 69.73 | 59.50 | 47.13 | 44.52 | 27.92 | 47.05 | a | |||||||
1950 | 23.71 | 34.02 | 33.21 | 43.38 | 49.32 | 63.15 | 67.39 | 66.85 | 57.80 | 53.32 | 35.72 | 33.15 | 46.75 | |||||||||||||
1951 | 23.74 | 30.84 | 30.97 | 39.80 | 54.52 | 57.55 | a | 71.23 | 67.71 | 57.12 | 46.74 | 34.75 | 24.98 | 45.00 | ||||||||||||
1952 | 27.19 | 31.02 | 29.90 | 45.80 | 54.48 | 70.05 | 70.19 | 70.81 | 62.37 | 49.03 | 29.30 | 26.65 | 47.23 | |||||||||||||
1953 | 36.13 | 28.64 | 38.71 | 39.05 | 51.05 | 66.73 | 72.74 | 69.73 | 62.77 | 50.77 | 39.00 | 28.63 | 48.66 | |||||||||||||
1954 | 31.92 | 39.70 | 30.48 | 49.77 | 53.00 | 65.45 | 75.03 | 70.52 | 63.07 | 47.55 | 39.97 | a | 31.11 | 49.80 | ||||||||||||
1955 | 21.71 | 22.62 | 31.29 | 46.48 | 55.60 | 60.42 | 73.21 | 71.29 | 60.38 | 50.77 | 30.93 | 29.92 | 46.22 | |||||||||||||
1956 | 28.79 | 25.84 | 35.34 | 41.43 | 56.98 | 69.32 | 70.16 | 67.29 | 62.13 | 51.44 | 34.25 | 33.34 | 48.03 | |||||||||||||
1957 | 21.20 | a | 35.43 | 34.10 | 40.47 | 51.35 | 62.67 | a | 72.15 | 70.21 | 57.28 | 49.00 | 33.38 | 36.29 | 46.96 | |||||||||||
1958 | 30.45 | 32.29 | 28.26 | 41.70 | 59.89 | 64.75 | 67.15 | 71.11 | 61.23 | 50.87 | 37.38 | a | 30.50 | 47.96 | ||||||||||||
1959 | 27.23 | 25.93 | 32.37 | 42.40 | 53.71 | 68.60 | 71.19 | 72.45 | 57.72 | 45.02 | 33.72 | 33.39 | 46.98 | |||||||||||||
1960 | 25.35 | 22.97 | 34.87 | 47.83 | 54.90 | 64.82 | 71.24 | 69.47 | 62.20 | 49.94 | 37.15 | 28.52 | 47.44 | |||||||||||||
1961 | 30.47 | 34.27 | 35.21 | 41.63 | 53.68 | 66.00 | 71.18 | 71.40 | 53.77 | 46.82 | 32.35 | 26.06 | 46.90 | |||||||||||||
1962 | 19.27 | 29.86 | 32.37 | 48.24 | a | 56.95 | 63.58 | 69.98 | 68.89 | 60.00 | 51.10 | 40.58 | 31.50 | 47.69 | ||||||||||||
1963 | 18.43 | a | 34.50 | a | 35.87 | 46.03 | 58.10 | 67.62 | 74.95 | 70.52 | 64.97 | 55.87 | 39.87 | 26.33 | a | 49.42 | ||||||||||
1964 | 28.50 | 23.64 | 28.84 | 43.27 | 57.03 | 62.28 | a | 74.97 | 68.44 | 58.97 | a | 48.79 | 36.68 | 28.69 | 46.67 | |||||||||||
1965 | 31.87 | a | 26.80 | 23.65 | a | 46.83 | 53.32 | a | 62.18 | 70.37 | 67.48 | 52.47 | 53.05 | 41.57 | 31.12 | a | 46.73 | |||||||||
1966 | 24.39 | 26.68 | 39.45 | 41.90 | 57.35 | 63.60 | 75.42 | 68.87 | 62.23 | 48.48 | 39.19 | a | 29.08 | 48.05 | ||||||||||||
1967 | 31.28 | a | 34.59 | 41.70 | a | 46.23 | 51.48 | 61.43 | 69.68 | 67.68 | 60.28 | a | 50.67 | a | 34.12 | 23.45 | 47.72 | |||||||||
1968 | 28.26 | 32.00 | 38.03 | 41.02 | 51.05 | 65.60 | ----- | z | 66.39 | 58.37 | 49.52 | 34.23 | 26.35 | 44.62 | a | |||||||||||
1969 | 27.74 | 31.09 | 29.45 | 48.17 | a | 56.63 | 59.23 | b | 72.21 | 71.78 | b | 62.83 | 37.97 | 37.58 | 31.58 | 47.19 | ||||||||||
1970 | 27.84 | 34.82 | 31.19 | 39.60 | 57.92 | a | 63.52 | 72.42 | 72.97 | 57.91 | a | 43.13 | 36.45 | 27.10 | 47.07 | |||||||||||
1971 | 29.76 | b | 28.57 | 33.89 | 44.87 | 52.60 | 66.80 | 68.94 | 72.27 | 53.76 | e | 47.42 | 36.92 | 27.84 | 46.97 | |||||||||||
1972 | ----- | z | 34.33 | 43.33 | b | 44.75 | 53.15 | 65.85 | 66.87 | 66.82 | a | 58.67 | 46.92 | 30.78 | 20.23 | 48.33 | a | |||||||||
1973 | 24.42 | a | 31.79 | 34.68 | 41.21 | a | 53.02 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.02 | g | ||
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 | 65.89 | 63.63 | 49.97 | 26.77 | b | 31.82 | 47.62 | g | ||||
1980 | 20.87 | a | 26.34 | 30.73 | 42.66 | a | 51.08 | 65.90 | 73.26 | 68.42 | 60.83 | 46.21 | 35.38 | b | 35.24 | 46.41 | ||||||||||
1981 | 31.31 | 30.05 | 36.66 | b | 49.93 | 51.47 | 65.53 | a | 70.06 | 67.95 | 61.85 | 46.10 | 40.52 | 30.61 | 48.50 | |||||||||||
1982 | 24.87 | l | 28.02 | h | 35.48 | h | 41.63 | d | 52.46 | g | 60.57 | g | 70.04 | c | 70.83 | h | 58.52 | i | 45.07 | h | 31.07 | 28.39 | 42.78 | h | ||
1983 | 33.44 | 33.90 | b | 34.27 | a | 38.35 | 49.76 | b | 61.24 | a | 70.71 | b | 73.97 | 59.93 | b | 48.76 | 32.77 | b | 14.69 | b | 45.98 | |||||
1984 | 23.75 | a | 31.17 | b | 34.03 | 37.90 | 56.18 | 62.28 | c | 71.08 | a | 70.79 | 53.33 | f | 41.21 | b | 35.62 | 25.05 | c | 44.46 | a | |||||
1985 | 20.65 | d | 21.64 | j | 37.58 | a | 48.15 | 57.34 | 63.37 | 71.21 | 69.02 | d | 53.97 | a | 45.78 | a | 23.02 | a | 23.81 | 46.72 | a | |||||
1986 | 33.12 | a | 29.04 | a | 42.48 | a | 45.64 | b | 53.87 | 67.95 | a | 71.60 | a | 69.35 | a | 57.34 | b | 46.24 | 35.75 | b | 27.62 | a | 48.33 | |||
1987 | 28.40 | a | 31.35 | a | 33.82 | 49.16 | b | 57.62 | e | 66.53 | 71.74 | 65.75 | a | 57.87 | 46.89 | 35.98 | a | 25.95 | a | 47.59 | ||||||
1988 | 19.92 | a | 29.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 24.60 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.22 | 29.62 | 34.48 | 44.22 | 54.27 | 64.22 | 71.47 | 69.72 | 60.18 | 48.42 | 35.30 | 28.20 | 47.51 | |||||||||||||
S.D. | 5.57 | 4.64 | 4.13 | 3.74 | 3.14 | 2.95 | 2.25 | 2.17 | 2.97 | 3.47 | 4.13 | 4.20 | 1.17 | |||||||||||||
SKEW | -0.86 | -0.70 | -0.11 | 0.07 | 0.03 | -0.02 | 0.14 | -0.05 | -0.48 | -0.80 | -0.66 | -0.56 | 0.52 | |||||||||||||
MAX | 36.13 | 39.70 | 43.33 | 52.12 | 62.77 | 70.47 | 76.84 | 74.39 | 65.45 | 55.87 | 44.52 | 36.63 | 50.99 | |||||||||||||
MIN | 9.58 | 15.28 | 23.65 | 34.90 | 47.23 | 57.03 | 66.87 | 65.07 | 52.47 | 37.97 | 23.02 | 14.69 | 45.00 | |||||||||||||
YRS | 62 | 62 | 59 | 61 | 62 | 60 | 60 | 61 | 61 | 62 | 62 | 61 | 50 |