YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.16 | h | 14.95 | c | 14.95 | k |
1899 | 20.67 | j | ----- | z | 29.19 | 43.10 | a | 48.18 | 54.27 | 62.95 | a | 58.45 | 56.55 | a | 37.21 | 28.64 | a | 14.50 | k | 46.50 | c | |||||
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.83 | g | 46.48 | 35.75 | 26.85 | 36.36 | i | |||
1902 | 25.65 | e | 32.88 | ----- | z | ----- | z | 53.74 | d | 65.12 | b | 67.08 | k | 65.55 | 55.92 | 47.87 | 35.53 | ----- | z | 47.78 | d | |||||
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 21.06 | f | 14.85 | b | 32.34 | b | 37.50 | a | 46.55 | b | 64.50 | a | 70.20 | a | 64.80 | d | 57.40 | 48.76 | 36.03 | 31.69 | 45.87 | a | ||||
1934 | 24.66 | 31.41 | 39.73 | 46.78 | 57.35 | 59.81 | c | 68.73 | 67.48 | 54.10 | 47.32 | a | 33.22 | 21.81 | 46.03 | |||||||||||
1935 | 25.02 | b | 27.54 | 30.90 | a | 39.93 | 46.60 | a | 61.59 | b | 69.24 | 66.96 | c | 58.26 | c | 43.26 | d | 28.80 | b | 22.42 | 43.38 | |||||
1936 | 19.42 | e | 24.67 | c | 30.91 | b | 41.90 | 55.87 | d | 64.43 | a | 70.80 | a | 67.85 | 55.52 | b | 43.40 | a | 30.62 | a | 23.88 | a | 44.11 | |||
1937 | 6.33 | a | 18.96 | 29.39 | 38.27 | 53.37 | 58.45 | 68.24 | 66.77 | 58.63 | 46.40 | 32.32 | b | 23.23 | 41.70 | |||||||||||
1938 | 22.16 | 23.54 | 29.71 | 41.85 | 49.48 | b | 62.22 | 64.94 | 64.50 | 58.84 | b | 46.11 | 25.47 | 25.85 | 42.89 | |||||||||||
1939 | 21.68 | 15.30 | 33.53 | 44.88 | 53.68 | 57.42 | 67.68 | 64.68 | 56.85 | 45.69 | 33.45 | 29.53 | 43.70 | |||||||||||||
1940 | 17.47 | 23.60 | 36.66 | 43.05 | 54.55 | 63.90 | 69.13 | 67.29 | 57.70 | 46.18 | 25.68 | 24.71 | 44.16 | |||||||||||||
1941 | 15.06 | 26.55 | 31.76 | 39.68 | 53.76 | 58.70 | 66.81 | 64.97 | 51.72 | ----- | z | 33.40 | 22.19 | 42.24 | a | |||||||||||
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 | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.58 | 60.65 | 45.53 | b | 27.65 | 18.61 | 44.01 | g | ||||
1949 | 6.33 | d | 19.73 | 34.90 | 47.97 | a | 53.84 | b | 60.50 | 68.66 | 67.45 | 58.65 | 41.10 | 41.73 | 23.52 | 43.70 | ||||||||||
1950 | 19.56 | 24.77 | 32.52 | b | 42.45 | b | 47.65 | 59.12 | 66.31 | 65.32 | 56.30 | 50.31 | 36.75 | b | 31.81 | 44.40 | ||||||||||
1951 | 23.24 | f | 30.46 | 30.76 | 42.17 | 52.35 | 56.20 | 68.47 | 65.52 | 57.20 | 43.53 | a | 28.63 | 21.24 | 45.14 | a | ||||||||||
1952 | 19.02 | 21.29 | 26.18 | 44.52 | 53.02 | 62.28 | 68.61 | 67.69 | 60.62 | 49.71 | 25.50 | 22.50 | 43.41 | |||||||||||||
1953 | 32.79 | 28.37 | b | 35.73 | 39.02 | 46.87 | 62.45 | 71.85 | 67.45 | 60.05 | 46.53 | 36.82 | 26.50 | 46.20 | ||||||||||||
1954 | 27.90 | 33.89 | 30.32 | 47.28 | 54.77 | 61.08 | 71.66 | 66.93 | a | 59.45 | 47.16 | 38.90 | 18.92 | 46.52 | ||||||||||||
1955 | 19.11 | 21.93 | 28.69 | 40.73 | 53.32 | 60.05 | a | 69.56 | 69.60 | a | 57.37 | 47.16 | 30.00 | 28.73 | a | 43.86 | ||||||||||
1956 | 25.71 | 18.86 | 34.32 | a | 43.17 | c | 54.77 | a | 65.03 | a | 69.31 | 64.77 | 59.23 | b | 46.88 | a | 31.22 | 27.83 | a | 45.09 | ||||||
1957 | 15.97 | 33.23 | b | 36.05 | 41.48 | b | 50.44 | 60.71 | a | 68.47 | a | 67.25 | a | 55.41 | a | 46.42 | 27.48 | b | 26.27 | a | 44.10 | |||||
1958 | 16.98 | 30.50 | 30.56 | 39.62 | b | 57.16 | 63.91 | a | 66.87 | 69.95 | b | 59.25 | 47.00 | a | 35.90 | a | 32.55 | 45.86 | ||||||||
1959 | 23.83 | a | 25.39 | 33.77 | a | 43.83 | 49.33 | a | 64.82 | 69.40 | 66.19 | b | 55.05 | 46.16 | b | 35.43 | a | 26.95 | a | 45.01 | ||||||
1960 | 19.00 | a | 18.52 | 34.37 | a | 46.07 | 52.97 | 64.23 | 71.56 | 66.47 | a | 59.05 | 45.71 | 31.28 | 19.42 | 44.05 | ||||||||||
1961 | 23.39 | 29.32 | 34.31 | 41.85 | 53.00 | 66.10 | 69.52 | 68.11 | 50.72 | 42.65 | 27.39 | b | 20.98 | a | 43.94 | |||||||||||
1962 | 16.66 | 29.48 | a | 26.10 | 46.45 | 52.77 | 60.38 | a | 66.80 | a | 65.88 | a | 58.25 | 47.87 | a | 35.98 | 27.45 | 44.51 | ||||||||
1963 | 18.66 | 32.78 | a | 33.34 | 40.07 | 55.40 | a | 61.07 | 69.79 | 67.10 | 60.43 | 51.13 | 35.02 | 25.62 | c | 45.87 | ||||||||||
1964 | 20.88 | b | 20.46 | a | 25.75 | a | 40.38 | 52.00 | a | 58.65 | 71.73 | 64.87 | a | 56.70 | 47.08 | 30.42 | 23.79 | e | 42.73 | |||||||
1965 | 24.84 | 27.62 | 26.02 | 43.72 | 49.55 | 58.60 | 68.06 | 64.79 | 49.60 | a | 49.37 | 37.31 | a | 24.00 | 43.62 | |||||||||||
1966 | 20.23 | 22.02 | a | 34.33 | b | 41.57 | a | 54.58 | a | 60.30 | 71.50 | 65.66 | 58.69 | a | 43.33 | b | 36.62 | b | 24.50 | 44.44 | ||||||
1967 | 28.05 | 28.96 | 35.53 | 40.20 | 49.10 | 57.93 | 69.24 | 67.82 | 58.78 | 47.84 | 32.57 | 17.27 | 44.44 | |||||||||||||
1968 | 20.79 | 27.86 | 35.73 | 38.24 | a | 48.85 | 61.16 | a | 68.60 | 62.05 | a | 54.87 | 46.95 | 30.62 | a | 21.31 | 43.09 | |||||||||
1969 | 27.93 | a | 21.09 | a | 25.63 | 44.54 | b | 57.50 | 57.08 | 69.11 | 70.39 | 60.33 | 38.10 | 33.48 | a | 25.69 | 44.24 | |||||||||
1970 | 26.23 | a | 31.27 | 31.17 | a | 37.75 | 53.00 | 60.81 | a | 69.32 | 70.21 | 52.90 | 39.89 | 33.57 | 21.13 | 43.94 | ||||||||||
1971 | 27.81 | b | 27.29 | 31.53 | 41.60 | 50.29 | 61.18 | 67.02 | 69.56 | 52.68 | 41.81 | 25.62 | 17.03 | 42.79 | ||||||||||||
1972 | 19.87 | 25.98 | 39.44 | 43.03 | 52.60 | 63.05 | 66.44 | 65.69 | 54.45 | 44.24 | 28.13 | 16.21 | 43.26 | |||||||||||||
1973 | 10.61 | 15.84 | 29.48 | a | 36.83 | 51.31 | 60.80 | 65.94 | 67.18 | 53.57 | 46.97 | a | 30.15 | 26.63 | 41.28 | |||||||||||
1974 | 17.93 | a | 24.30 | 36.85 | 41.79 | a | 52.65 | 64.68 | 69.37 | 64.32 | 54.50 | 46.39 | 33.07 | 22.83 | a | 44.06 | ||||||||||
1975 | 21.92 | 26.30 | 32.70 | a | 36.23 | 47.77 | a | 56.58 | 70.10 | 64.79 | 54.98 | 44.69 | b | 30.32 | 27.10 | 42.79 | ||||||||||
1976 | 24.16 | 26.66 | a | 30.95 | a | 42.17 | 53.74 | b | 58.05 | 69.79 | e | 64.58 | 57.97 | 44.48 | b | 35.27 | 27.85 | 44.64 | ||||||||
1977 | 24.50 | 31.64 | 30.40 | 46.43 | a | 51.34 | 67.92 | 68.52 | 64.95 | 56.98 | 46.90 | a | 33.27 | 29.23 | a | 46.01 | ||||||||||
1978 | 25.45 | a | 28.25 | 37.90 | 43.16 | a | 49.08 | 61.18 | 69.66 | f | 65.05 | c | 55.62 | a | 48.14 | c | 27.87 | 15.42 | 41.56 | a | ||||||
1979 | 9.23 | 24.62 | 34.05 | 42.53 | 46.03 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.61 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.84 | 25.56 | 32.28 | 42.04 | 52.05 | 61.13 | 68.73 | 66.30 | 56.71 | 45.71 | 32.16 | 23.95 | 44.11 | |||||||||||||
S.D. | 5.90 | 5.12 | 3.63 | 2.91 | 2.98 | 3.00 | 1.92 | 2.20 | 2.73 | 2.98 | 3.98 | 4.42 | 1.22 | |||||||||||||
SKEW | -0.70 | -0.36 | -0.04 | 0.06 | -0.19 | 0.02 | -0.66 | -0.77 | -0.65 | -0.95 | 0.08 | -0.17 | 0.02 | |||||||||||||
MAX | 32.79 | 33.89 | 39.73 | 47.97 | 57.50 | 67.92 | 71.85 | 70.39 | 60.65 | 51.13 | 41.73 | 32.55 | 46.52 | |||||||||||||
MIN | 6.33 | 14.85 | 25.63 | 36.23 | 46.55 | 54.27 | 62.95 | 58.45 | 49.60 | 37.21 | 25.47 | 14.95 | 41.28 | |||||||||||||
YRS | 39 | 41 | 41 | 41 | 41 | 41 | 39 | 42 | 42 | 42 | 43 | 42 | 35 |