YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.32 | s | 24.80 | a | 24.80 | k |
1948 | 29.73 | 26.60 | d | 25.88 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.16 | j | |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.26 | 60.58 | 56.18 | 52.48 | ----- | z | ----- | z | 57.63 | h | ||||
1951 | 35.38 | n | 25.36 | 33.52 | h | 37.31 | i | 44.70 | k | 52.55 | h | 61.11 | 55.85 | e | ----- | z | 42.27 | e | 37.00 | x | 27.40 | j | 46.15 | h | ||
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 | 64.48 | d | 61.03 | 51.27 | 37.54 | d | 31.75 | i | 53.58 | h | ||
1956 | 33.65 | 23.97 | 36.74 | 39.64 | a | 51.66 | 64.38 | 65.35 | 62.31 | 62.33 | 47.92 | a | 32.78 | 31.16 | 45.99 | |||||||||||
1957 | 25.76 | b | 36.33 | a | 32.81 | 41.73 | 49.00 | 59.84 | a | ----- | z | 66.12 | k | 60.18 | b | 43.97 | 32.40 | 34.44 | 41.65 | b | ||||||
1958 | 25.97 | 32.07 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.02 | j | |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.84 | 59.65 | 44.40 | a | 37.10 | a | 27.50 | 46.90 | g | |||
1961 | 30.32 | 31.91 | a | 33.30 | a | ----- | z | 49.84 | 65.03 | 67.47 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.31 | f | ||||
1962 | ----- | z | ----- | z | 30.09 | i | ----- | z | ----- | z | ----- | z | 64.65 | u | 65.58 | 59.80 | 48.63 | 40.04 | f | 31.43 | a | 51.36 | h | |||
1963 | 24.21 | b | 35.02 | b | 31.66 | b | 37.00 | h | ----- | z | 57.29 | d | 66.76 | 62.56 | 59.13 | c | 51.63 | e | 37.08 | e | 29.77 | g | 47.26 | c | ||
1964 | 16.62 | e | 12.94 | d | 25.46 | c | 36.79 | k | 47.71 | g | 57.53 | 66.62 | b | 63.97 | l | 56.16 | h | ----- | z | 32.83 | o | 28.63 | p | 35.83 | g | |
1965 | 30.78 | a | 30.12 | 27.50 | 37.14 | a | 42.59 | o | 52.46 | f | 63.07 | b | 61.77 | 53.30 | e | ----- | z | ----- | z | 30.25 | a | 41.74 | d | |||
1966 | 24.32 | 22.46 | 35.24 | 39.67 | a | 52.19 | w | 61.50 | r | 64.32 | a | 65.32 | i | ----- | z | ----- | z | ----- | z | 26.62 | f | 37.20 | g | |||
1967 | 28.97 | 32.29 | ----- | z | ----- | z | ----- | z | 54.79 | a | 65.29 | 63.08 | 54.48 | 48.34 | c | 39.07 | 23.95 | 45.58 | c | |||||||
1968 | 28.87 | a | 33.48 | 33.52 | 35.92 | ----- | z | ----- | z | 63.74 | 58.34 | 55.28 | 47.82 | 33.75 | 23.76 | l | 43.41 | c | ||||||||
1969 | 30.66 | b | 27.40 | c | 28.48 | f | 41.58 | f | 50.57 | a | 55.47 | 64.26 | 65.42 | a | 57.10 | a | 40.79 | b | 35.65 | 31.52 | 45.88 | b | ||||
1970 | 27.69 | 33.88 | 32.50 | 35.78 | 50.76 | ----- | z | 64.48 | 63.81 | 53.93 | b | 43.52 | b | 37.23 | 29.60 | 43.02 | a | |||||||||
1971 | 30.32 | a | 31.04 | 35.26 | 43.05 | ----- | z | 60.52 | g | 67.23 | a | 62.24 | 54.15 | 40.37 | e | 33.73 | 23.53 | a | 42.09 | b | ||||||
1972 | 29.61 | 33.12 | a | 42.26 | 41.07 | 50.65 | 57.47 | 67.32 | 61.40 | 54.50 | 43.10 | b | 31.78 | 26.25 | a | 44.88 | ||||||||||
1973 | 25.02 | a | ----- | z | 30.24 | 34.75 | 50.93 | c | ----- | z | 65.90 | 65.33 | k | 57.08 | 48.22 | a | 35.55 | ----- | z | 43.46 | d | |||||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.41 | b | 62.52 | ----- | z | 46.68 | ----- | z | ----- | z | 57.87 | i | ||
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.31 | 63.39 | 57.30 | 44.52 | g | 36.03 | a | 29.74 | 50.35 | g | ||||
1976 | 28.43 | c | 33.14 | ----- | z | 39.65 | ----- | z | 58.33 | 64.26 | 63.37 | 54.08 | j | ----- | z | ----- | z | ----- | z | 47.86 | f | |||||
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 | 34.90 | a | 34.90 | k |
1982 | 27.55 | 29.17 | a | 32.38 | a | 39.28 | a | 50.66 | b | 59.18 | 64.57 | a | 63.77 | a | 56.67 | 42.75 | a | 33.71 | a | 28.41 | b | 44.01 | ||||
1983 | 31.15 | 31.11 | a | 33.52 | 34.95 | 49.10 | b | 59.34 | b | 65.72 | a | 62.85 | 59.65 | 46.60 | a | 35.26 | a | 30.41 | b | 44.97 | ||||||
1984 | 27.95 | b | 28.24 | d | 35.12 | c | 38.38 | b | 56.53 | 59.69 | a | 64.98 | 63.35 | 60.26 | e | 39.75 | a | 34.00 | b | 28.32 | c | 44.72 | ||||
1985 | 27.18 | c | 27.42 | c | 31.84 | b | 44.61 | c | 53.21 | 63.82 | 66.74 | 65.66 | 52.96 | c | 45.37 | e | 30.78 | g | 31.35 | a | 46.38 | a | ||||
1986 | 34.87 | a | 31.48 | e | 38.67 | g | 43.27 | h | 52.03 | a | 63.52 | 65.20 | a | 66.39 | c | 54.61 | g | 44.22 | f | 36.38 | e | 30.00 | 47.48 | d | ||
1987 | 26.55 | c | 28.58 | b | 32.52 | d | 45.75 | 50.14 | b | 63.82 | e | 63.60 | 63.46 | h | 58.41 | h | 46.88 | n | ----- | z | ----- | z | 44.42 | e | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.09 | 29.44 | 33.05 | 39.42 | 51.16 | 59.97 | 64.96 | 62.93 | 57.25 | 45.79 | 35.24 | 29.31 | 44.91 | |||||||||||||
S.D. | 3.69 | 5.04 | 3.65 | 3.40 | 1.98 | 3.35 | 1.69 | 2.46 | 2.85 | 3.77 | 2.05 | 3.20 | 0.71 | |||||||||||||
SKEW | -1.02 | -1.55 | 0.30 | 0.30 | 1.60 | 0.18 | -0.57 | -1.13 | 0.07 | 0.12 | -0.00 | -0.23 | 0.39 | |||||||||||||
MAX | 34.87 | 36.33 | 42.26 | 45.75 | 56.53 | 65.03 | 67.47 | 66.39 | 62.33 | 52.48 | 39.07 | 34.90 | 45.99 | |||||||||||||
MIN | 16.62 | 12.94 | 25.46 | 34.75 | 49.00 | 54.79 | 61.11 | 55.85 | 52.96 | 39.75 | 31.78 | 23.53 | 44.01 | |||||||||||||
YRS | 23 | 23 | 17 | 15 | 13 | 15 | 24 | 22 | 20 | 20 | 17 | 18 | 5 |