YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | ----- | z | ----- | z | 43.67 | u | ----- | z | ----- | z | ----- | z | 64.37 | ----- | z | ----- | z | ----- | z | ----- | z | 64.37 | k | |
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 30.97 | 42.62 | 49.95 | 57.00 | 62.89 | 66.35 | 57.16 | a | 42.32 | 37.32 | 29.30 | a | 47.59 | b | ||||||||
1914 | 32.50 | 30.09 | 39.81 | 43.57 | 53.67 | a | 54.90 | 69.48 | 68.48 | 54.48 | 48.52 | 41.25 | 24.47 | 46.77 | ||||||||||||
1915 | 28.55 | a | 35.14 | 40.53 | 47.62 | 48.25 | a | 55.03 | 62.74 | 72.47 | 55.13 | 49.58 | 33.13 | 27.88 | a | 46.34 | ||||||||||
1916 | 15.94 | 34.04 | b | 38.11 | 42.27 | 44.48 | 55.43 | a | 62.44 | 65.21 | 56.97 | 44.32 | 31.62 | 24.34 | 42.93 | |||||||||||
1917 | 23.52 | a | 27.77 | b | 25.71 | 36.78 | 46.81 | 54.98 | 70.42 | 69.94 | 61.12 | 49.00 | c | 43.82 | 35.42 | 45.44 | ||||||||||
1918 | 29.74 | 28.66 | 37.74 | 43.38 | 47.29 | 65.67 | 67.84 | 61.18 | 61.87 | 48.87 | 34.82 | 28.21 | 46.27 | |||||||||||||
1919 | 32.68 | a | 28.36 | 36.08 | a | 44.87 | 50.85 | a | 58.42 | 70.37 | 68.90 | 57.48 | 40.29 | 32.97 | 23.69 | 45.41 | ||||||||||
1920 | 31.00 | a | 32.64 | 33.19 | 37.87 | 46.56 | 54.03 | 70.13 | 67.57 | a | 57.10 | 43.53 | 35.03 | 30.37 | a | 44.92 | ||||||||||
1921 | 28.77 | 31.57 | 37.63 | 38.88 | 50.52 | 59.57 | 66.33 | a | 68.08 | 50.65 | 51.89 | 38.32 | 29.79 | 46.00 | ||||||||||||
1922 | 22.29 | 25.39 | 31.18 | 38.14 | a | 48.19 | 62.57 | 70.10 | 68.06 | 62.50 | d | 51.95 | 34.35 | 25.98 | 45.06 | |||||||||||
1923 | 29.92 | 28.02 | 34.45 | 43.37 | d | 48.52 | 54.00 | 66.45 | 65.92 | 60.15 | 45.47 | 40.71 | b | 25.44 | 45.20 | |||||||||||
1924 | 25.13 | 35.71 | 33.32 | 42.58 | 56.82 | 59.08 | 66.52 | 64.68 | 59.07 | 46.50 | a | 33.30 | 22.16 | 45.41 | ||||||||||||
1925 | 29.31 | 34.70 | 36.85 | 46.63 | 53.18 | 58.53 | 71.39 | 64.85 | 55.70 | b | 43.47 | 36.98 | 33.52 | 47.09 | ||||||||||||
1926 | 25.98 | 36.20 | 39.98 | 51.43 | a | 50.98 | 59.86 | a | 68.98 | a | 65.06 | 48.62 | 46.42 | 38.65 | 28.44 | 46.72 | ||||||||||
1927 | 26.90 | a | 31.79 | 35.63 | a | 42.33 | a | 46.36 | q | 58.12 | a | 64.77 | 63.47 | 51.90 | 47.55 | 37.77 | b | 20.63 | 43.71 | a | ||||||
1928 | 28.48 | a | 32.46 | a | 39.47 | a | 42.60 | a | 58.33 | a | 57.38 | a | 68.63 | 63.72 | a | 58.07 | a | 45.98 | a | 36.15 | 27.32 | 46.55 | ||||
1929 | 18.00 | 20.82 | 36.87 | 37.78 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.23 | i | |||
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.08 | 30.22 | 26.61 | 34.30 | i | |||
1932 | 24.67 | a | 27.07 | a | 35.65 | 44.23 | 50.73 | 58.83 | 62.84 | 62.29 | b | 55.37 | 45.27 | a | 39.38 | 22.86 | b | 44.10 | ||||||||
1933 | 26.32 | 21.91 | a | 36.68 | 42.19 | a | 46.84 | 59.37 | 65.05 | 65.21 | b | 52.37 | 49.81 | 38.92 | 36.29 | 45.08 | ||||||||||
1934 | 35.85 | 39.06 | a | 44.50 | 50.22 | a | 55.90 | 58.38 | 66.32 | 66.60 | 52.98 | d | 48.24 | 41.72 | a | 29.37 | 49.10 | |||||||||
1935 | 27.52 | 33.25 | 32.81 | b | 40.91 | c | 49.27 | 57.80 | 64.42 | 63.05 | 59.75 | 44.84 | 32.32 | 29.56 | 44.62 | |||||||||||
1936 | 28.15 | 17.00 | 34.24 | 47.07 | a | 56.34 | 60.48 | 68.61 | 66.38 | b | 55.40 | 49.63 | 33.78 | 31.19 | 45.69 | |||||||||||
1937 | 9.27 | a | 27.02 | 39.42 | 41.40 | a | 52.31 | 57.35 | 67.15 | a | 62.69 | 59.22 | 50.21 | 39.13 | 33.26 | 44.87 | ||||||||||
1938 | 30.68 | 32.29 | b | 36.58 | 44.30 | 50.27 | 59.89 | b | 67.17 | a | 62.71 | 62.58 | 47.87 | 31.90 | a | 31.22 | a | 46.45 | ||||||||
1939 | 32.79 | 25.48 | 38.44 | 46.57 | 53.94 | 54.02 | 65.79 | 66.29 | 57.87 | 47.56 | 40.12 | 35.65 | 47.04 | |||||||||||||
1940 | 27.95 | 35.67 | 41.26 | 45.95 | 55.12 | a | 60.97 | a | 66.76 | 65.37 | 59.68 | 49.53 | 31.60 | a | 32.74 | 47.72 | ||||||||||
1941 | 32.71 | 36.88 | 41.66 | 45.78 | 51.77 | 56.80 | 66.89 | 62.84 | 50.25 | h | 44.74 | 38.17 | a | 30.21 | 46.22 | a | ||||||||||
1942 | 23.47 | 28.04 | 35.82 | 46.62 | 48.56 | 53.00 | a | ----- | z | 64.46 | f | ----- | z | ----- | z | ----- | z | ----- | z | 39.25 | f | |||||
1943 | ----- | z | ----- | z | 32.65 | 45.30 | 46.66 | 51.80 | 63.15 | 62.10 | a | 57.47 | 48.42 | 35.95 | 28.26 | 47.17 | b | |||||||||
1944 | 27.88 | a | 29.79 | 31.90 | 42.65 | 51.84 | 55.70 | 64.81 | b | 63.47 | 59.37 | 53.24 | 34.48 | a | 28.63 | a | 45.31 | |||||||||
1945 | 28.92 | 33.00 | 35.06 | 41.17 | a | 51.34 | 54.50 | 66.40 | a | 66.84 | 54.82 | 49.66 | 34.72 | 28.35 | 45.40 | |||||||||||
1946 | 29.55 | 29.95 | 38.27 | 45.67 | 49.79 | 53.53 | 62.15 | a | 64.60 | 54.00 | a | 40.16 | 33.32 | 31.02 | 44.33 | |||||||||||
1947 | 23.77 | a | 33.12 | 39.55 | 43.28 | 54.81 | 53.65 | 64.79 | 63.19 | 57.02 | 47.76 | b | 34.60 | i | 31.26 | f | 48.09 | b | ||||||||
1948 | 27.71 | 28.54 | a | 32.03 | 40.86 | b | 49.79 | 60.03 | a | 60.87 | 61.19 | 55.12 | 46.32 | 32.45 | 19.84 | 42.90 | ||||||||||
1949 | 8.73 | a | ----- | z | 36.61 | 47.33 | 54.39 | 56.35 | f | 63.24 | 65.71 | 58.48 | a | 41.40 | j | 42.53 | 28.37 | 45.05 | c | |||||||
1950 | 15.23 | 30.89 | 34.40 | 40.68 | 47.61 | 55.02 | 61.52 | 63.03 | 54.78 | ----- | z | ----- | z | 37.96 | q | 44.80 | c | |||||||||
1951 | 25.03 | 30.62 | 31.45 | 46.27 | 50.87 | 55.20 | 66.48 | 64.71 | 57.65 | 44.06 | 34.02 | 24.06 | 44.20 | |||||||||||||
1952 | 23.82 | 29.41 | 31.66 | 47.28 | 51.18 | a | 55.83 | 63.79 | 63.94 | 59.33 | 51.65 | 31.50 | 30.18 | 44.96 | ||||||||||||
1953 | 37.26 | 32.00 | 36.37 | 41.71 | a | 46.56 | 51.75 | 64.68 | 64.50 | 60.02 | 48.98 | 38.98 | 31.27 | 46.17 | ||||||||||||
1954 | 27.60 | 36.54 | 33.15 | 42.25 | 50.31 | 51.97 | 62.84 | 58.65 | 53.72 | 44.02 | 39.37 | 27.84 | 44.02 | |||||||||||||
1955 | 24.65 | 25.04 | 26.60 | a | 38.37 | 46.82 | c | 57.73 | 61.53 | 65.47 | 55.95 | 46.74 | 29.62 | b | 26.29 | 42.07 | ||||||||||
1956 | 28.35 | a | 23.73 | a | 37.34 | i | 45.57 | 53.24 | 55.50 | 66.34 | 62.32 | 56.77 | 44.39 | 33.26 | a | 31.08 | a | 45.50 | a | |||||||
1957 | 16.18 | 30.05 | 37.13 | 43.55 | 54.08 | 57.78 | 63.17 | a | 62.13 | 59.03 | 44.21 | 32.97 | 32.74 | 44.42 | ||||||||||||
1958 | 31.33 | b | 37.45 | 34.26 | 41.42 | 57.19 | 59.74 | a | 65.42 | 67.31 | 54.25 | 47.31 | 34.80 | 35.79 | b | 47.19 | ||||||||||
1959 | 30.23 | a | 30.35 | a | 36.35 | 44.04 | b | 46.78 | a | 57.62 | 65.10 | a | 61.93 | a | 52.81 | a | 45.21 | 33.98 | 30.23 | 44.55 | ||||||
1960 | 23.10 | 28.22 | 37.11 | 43.50 | 47.84 | 58.88 | b | 71.45 | 60.82 | 57.95 | 47.13 | 35.00 | 28.03 | 44.92 | ||||||||||||
1961 | 31.90 | b | 36.39 | 36.58 | 42.18 | 49.52 | 62.82 | 68.00 | 70.53 | 51.90 | 42.95 | 31.85 | 27.33 | a | 46.00 | |||||||||||
1962 | 22.50 | c | 30.41 | a | 33.63 | 45.87 | 47.92 | a | 56.75 | 63.74 | 62.90 | a | 58.98 | 46.44 | 37.80 | 32.53 | 44.96 | |||||||||
1963 | 18.82 | 39.46 | 37.97 | 42.23 | 52.50 | b | 56.88 | 62.28 | a | 65.73 | 62.77 | 49.92 | 37.70 | 30.03 | b | 46.36 | ||||||||||
1964 | 28.37 | 29.38 | 32.85 | 40.63 | 49.35 | 56.80 | 65.66 | 60.92 | 52.58 | 47.44 | ----- | z | ----- | z | 46.40 | b | ||||||||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1972 | ----- | z | ----- | z | ----- | z | ----- | z | 53.06 | 58.88 | 65.05 | 69.08 | 53.18 | 47.21 | 36.28 | a | 22.97 | 50.71 | d | |||||||
1973 | 25.76 | 33.30 | 37.94 | 42.82 | 52.85 | ----- | z | 69.24 | 69.13 | 57.82 | 47.00 | 32.83 | 34.08 | 45.71 | a | |||||||||||
1974 | 23.78 | a | 34.82 | 36.55 | 42.84 | a | 48.10 | b | 62.23 | 66.21 | 66.94 | 60.90 | 51.69 | 37.97 | a | 32.42 | 47.04 | |||||||||
1975 | 27.79 | 28.52 | 34.39 | 37.80 | 47.87 | 57.03 | 70.23 | 63.10 | 59.72 | 45.84 | 34.05 | 32.20 | a | 44.88 | ||||||||||||
1976 | 29.82 | 30.76 | ----- | z | 43.28 | ----- | z | ----- | z | ----- | z | ----- | z | 60.42 | d | ----- | z | ----- | z | ----- | z | 41.07 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.27 | 30.76 | 35.75 | 43.37 | 50.73 | 57.24 | 65.93 | 64.94 | 56.92 | 47.00 | 35.78 | 28.99 | 45.47 | |||||||||||||
S.D. | 5.83 | 4.60 | 3.54 | 3.04 | 3.25 | 2.97 | 2.80 | 2.80 | 3.28 | 2.90 | 3.39 | 3.94 | 1.36 | |||||||||||||
SKEW | -1.09 | -0.52 | -0.38 | 0.14 | 0.40 | 0.32 | 0.22 | 0.38 | -0.28 | -0.14 | 0.37 | -0.29 | -0.02 | |||||||||||||
MAX | 37.26 | 39.46 | 44.50 | 51.43 | 58.33 | 65.67 | 71.45 | 72.47 | 62.77 | 53.24 | 43.82 | 36.29 | 49.10 | |||||||||||||
MIN | 8.73 | 17.00 | 25.71 | 36.78 | 44.48 | 51.75 | 60.87 | 58.65 | 48.62 | 40.16 | 29.63 | 19.84 | 42.07 | |||||||||||||
YRS | 52 | 51 | 52 | 53 | 52 | 51 | 52 | 53 | 52 | 51 | 50 | 50 | 41 |