YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | ----- | z | ----- | z | 35.22 | u | ----- | z | ----- | z | ----- | z | 44.74 | ----- | z | ----- | z | ----- | z | ----- | z | 44.74 | 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 | 24.74 | 33.63 | 41.71 | 48.57 | 52.94 | 55.61 | 45.66 | a | 34.68 | 31.90 | 23.57 | a | 39.30 | b | ||||||||
1914 | 27.10 | 23.50 | 31.90 | 35.13 | 44.00 | 46.40 | 58.65 | 58.03 | 44.60 | 41.23 | 34.43 | 18.61 | 38.63 | |||||||||||||
1915 | 21.83 | a | 29.25 | 32.68 | 38.27 | 40.19 | 46.87 | 54.06 | 61.19 | 45.30 | 40.90 | 27.57 | 22.50 | a | 38.38 | |||||||||||
1916 | 8.58 | 27.48 | b | 30.71 | 33.10 | 36.16 | 46.00 | 52.65 | 54.97 | 47.23 | 35.42 | 24.90 | 19.68 | 34.74 | ||||||||||||
1917 | 18.10 | a | 22.00 | a | 19.87 | 29.90 | 38.81 | 44.87 | 59.42 | 59.29 | 50.50 | 40.14 | c | 36.87 | 30.77 | 37.54 | ||||||||||
1918 | 24.55 | 22.43 | 30.35 | 34.37 | 38.13 | 54.67 | 56.77 | 51.74 | 52.13 | 40.84 | 28.73 | 22.58 | 38.11 | |||||||||||||
1919 | 26.50 | a | 23.64 | 29.61 | 35.90 | 40.26 | 47.60 | 58.42 | 57.74 | 46.77 | 32.90 | 26.57 | 16.32 | 36.85 | ||||||||||||
1920 | 24.27 | a | 25.03 | 27.00 | 30.13 | 38.19 | 45.10 | 58.90 | 56.55 | 47.67 | 36.13 | 29.77 | 25.33 | a | 37.01 | |||||||||||
1921 | 23.19 | 25.18 | 29.87 | 31.30 | 41.74 | 50.33 | 55.77 | a | 56.77 | 41.57 | 42.26 | 31.33 | 23.42 | 37.73 | ||||||||||||
1922 | 16.29 | 18.86 | 24.65 | 29.97 | a | 38.68 | 50.23 | 59.13 | 57.00 | 51.15 | d | 42.71 | 27.53 | 20.65 | 36.40 | |||||||||||
1923 | 25.10 | 20.68 | 26.55 | 33.69 | d | 39.55 | 44.17 | 54.29 | 53.39 | 47.20 | 35.68 | 31.77 | 15.42 | 35.62 | ||||||||||||
1924 | 18.29 | 27.62 | 24.84 | 31.97 | 43.58 | 46.27 | 52.61 | 51.10 | 43.93 | 36.47 | a | 26.77 | 15.84 | 34.94 | ||||||||||||
1925 | 24.03 | 28.21 | 27.84 | 35.13 | 41.10 | 47.10 | 57.03 | 50.84 | 43.29 | b | 32.77 | 29.20 | 28.16 | 37.06 | ||||||||||||
1926 | 19.16 | 29.32 | 29.68 | 37.76 | a | 38.77 | 45.79 | a | 52.58 | 49.35 | 36.07 | 35.00 | 31.00 | 22.26 | 35.56 | |||||||||||
1927 | 20.06 | 25.75 | 25.97 | 30.57 | 37.29 | q | 45.47 | 49.61 | 48.58 | 41.00 | 36.42 | 31.55 | a | 11.10 | 33.28 | a | ||||||||||
1928 | 21.17 | a | 26.04 | a | 30.37 | a | 33.72 | a | 45.30 | a | 45.55 | a | 54.87 | 48.16 | 42.59 | a | 34.63 | a | 27.57 | 19.68 | 35.80 | |||||
1929 | 8.81 | 11.36 | 27.87 | 28.04 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 16.01 | 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 | 31.35 | 20.37 | 17.48 | 23.07 | i | |||
1932 | 17.37 | a | 17.46 | a | 27.58 | 32.63 | 38.68 | 43.30 | 47.00 | 46.60 | a | 36.30 | 32.70 | a | 30.93 | 14.83 | b | 32.12 | ||||||||
1933 | 18.23 | 12.37 | a | 27.45 | 30.00 | 34.68 | 44.93 | 45.94 | 47.21 | b | 36.27 | 35.68 | 28.30 | 29.48 | 32.54 | |||||||||||
1934 | 28.81 | 28.85 | a | 32.61 | 35.66 | a | 39.52 | 43.30 | 46.26 | 46.52 | 36.58 | d | 35.48 | 33.10 | a | 21.97 | 35.72 | |||||||||
1935 | 18.13 | 24.89 | 23.48 | b | 28.41 | c | 34.58 | 43.20 | 47.10 | 44.19 | 40.87 | 31.81 | 24.13 | 21.58 | 31.86 | |||||||||||
1936 | 21.26 | 6.52 | 25.68 | 34.52 | a | 41.19 | 46.70 | 50.90 | 46.59 | b | 38.03 | 33.16 | 20.13 | 23.48 | 32.35 | |||||||||||
1937 | -1.43 | a | 17.75 | 28.39 | 31.03 | a | 36.81 | 42.70 | 50.57 | a | 45.42 | 42.03 | 36.74 | 30.53 | 27.26 | 32.32 | ||||||||||
1938 | 24.03 | 22.35 | b | 28.35 | 33.00 | 37.55 | 45.11 | b | 50.20 | a | 44.45 | 45.20 | 36.84 | 23.31 | a | 23.23 | a | 34.47 | ||||||||
1939 | 26.42 | 16.75 | 27.52 | 32.37 | 39.06 | 40.97 | 48.13 | 45.26 | 40.60 | 34.97 | 27.73 | 26.58 | 33.86 | |||||||||||||
1940 | 18.87 | 28.07 | 30.84 | 34.83 | 40.50 | a | 44.38 | a | 49.58 | 45.45 | 47.07 | 38.71 | 22.86 | a | 23.84 | 35.42 | ||||||||||
1941 | 24.39 | 26.50 | 28.94 | 32.80 | 39.68 | 45.27 | 50.48 | 48.19 | 39.23 | h | 33.77 | 28.07 | a | 23.16 | 34.66 | a | ||||||||||
1942 | 14.68 | 20.39 | 25.77 | 33.07 | 37.77 | 40.83 | a | ----- | z | 44.38 | e | ----- | z | ----- | z | ----- | z | ----- | z | 30.99 | e | |||||
1943 | ----- | z | ----- | z | 21.45 | 33.20 | 35.39 | 40.23 | 47.03 | 44.35 | 38.57 | 34.42 | 25.23 | 19.45 | 33.93 | b | ||||||||||
1944 | 18.03 | a | 19.72 | 22.26 | 32.13 | 39.26 | 42.87 | 48.97 | a | 47.55 | 45.30 | 40.13 | 27.60 | 21.58 | 33.78 | |||||||||||
1945 | 22.16 | 26.25 | 26.94 | 31.60 | 39.87 | 42.90 | 49.37 | a | 49.55 | 41.20 | 36.68 | 26.27 | 21.03 | 34.48 | ||||||||||||
1946 | 22.10 | 21.18 | 29.39 | 32.60 | 38.03 | 42.60 | 48.71 | 46.16 | 39.62 | a | 29.39 | 25.03 | 23.32 | 33.18 | ||||||||||||
1947 | 15.80 | a | 24.07 | 28.55 | 31.57 | 41.10 | 42.20 | 48.32 | 46.13 | 41.93 | 37.63 | a | 28.33 | i | 24.48 | f | 35.73 | b | ||||||||
1948 | 19.97 | 20.71 | a | 23.00 | 31.07 | a | 39.13 | 48.70 | 46.87 | 46.35 | 39.37 | 32.55 | 24.97 | 10.52 | 31.93 | |||||||||||
1949 | -2.87 | a | ----- | z | 27.29 | 33.73 | 42.00 | 42.75 | f | 46.32 | 48.03 | 41.55 | a | 29.57 | j | 32.20 | 21.00 | 32.14 | c | |||||||
1950 | 6.19 | 21.68 | 26.29 | 30.23 | 34.55 | 43.83 | 46.10 | 46.10 | 39.20 | ----- | z | 32.38 | v | 30.19 | 32.44 | b | ||||||||||
1951 | 17.81 | 22.04 | 21.94 | 31.80 | 38.32 | 42.47 | 49.90 | 49.23 | 42.07 | 33.94 | 25.37 | 16.26 | 32.59 | |||||||||||||
1952 | 15.16 | 21.03 | 22.26 | 31.73 | 39.67 | a | 43.43 | 47.58 | 46.58 | 42.30 | 34.58 | 20.63 | 21.97 | 32.24 | ||||||||||||
1953 | 31.03 | 23.25 | 25.90 | 30.07 | 33.65 | 39.27 | 47.90 | 47.84 | 42.13 | 34.52 | 28.90 | 24.68 | 34.09 | |||||||||||||
1954 | 18.74 | 27.50 | 22.87 | 30.77 | 35.71 | 39.87 | 46.94 | 43.55 | 38.43 | 29.87 | 29.30 | 18.29 | 31.82 | |||||||||||||
1955 | 16.52 | 15.79 | 16.67 | a | 29.33 | 35.97 | b | 44.67 | 47.77 | 47.45 | 40.97 | 35.23 | 22.07 | a | 18.39 | 30.90 | ||||||||||
1956 | 20.53 | a | 14.68 | a | 22.63 | a | 33.97 | 42.55 | 43.97 | 51.42 | 47.58 | 41.17 | 33.94 | 24.31 | a | 23.93 | a | 33.39 | ||||||||
1957 | 6.87 | 20.43 | 28.68 | 34.07 | 44.55 | 45.10 | 47.77 | a | 46.77 | 42.27 | 34.52 | 23.87 | 25.71 | 33.38 | ||||||||||||
1958 | 24.10 | b | 28.96 | 24.16 | 31.70 | 42.52 | 47.38 | a | 49.81 | 48.87 | 38.63 | 32.77 | 25.93 | 29.23 | a | 35.34 | ||||||||||
1959 | 22.80 | a | 22.89 | 28.26 | 32.55 | a | 35.47 | a | 45.03 | 48.03 | a | 46.47 | a | 41.93 | a | 34.61 | 23.27 | 21.48 | 33.57 | |||||||
1960 | 14.23 | 19.72 | 26.39 | 32.43 | 35.52 | 44.67 | 54.68 | 47.74 | 42.13 | 35.00 | 26.87 | 20.10 | 33.29 | |||||||||||||
1961 | 24.24 | b | 30.07 | 27.29 | 32.57 | 38.35 | 48.13 | 51.84 | 53.58 | 38.70 | 31.29 | 22.73 | 20.80 | a | 34.97 | |||||||||||
1962 | 14.39 | c | 22.74 | a | 24.03 | 32.77 | 37.52 | 42.17 | 48.35 | 48.17 | a | 43.40 | 36.19 | 30.33 | 25.71 | 33.81 | ||||||||||
1963 | 9.61 | 30.04 | 28.42 | 32.00 | 40.53 | a | 46.13 | 47.19 | 49.00 | 47.80 | 37.39 | 29.33 | 23.55 | b | 35.08 | |||||||||||
1964 | 21.48 | 20.03 | 23.97 | 29.93 | 37.74 | 45.50 | 50.81 | 46.06 | 38.43 | 33.68 | ----- | z | ----- | z | 34.76 | 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 | 40.29 | 47.53 | 50.94 | 53.45 | 40.47 | 34.74 | 28.83 | 15.45 | 38.96 | d | ||||||||
1973 | 17.71 | 25.04 | 29.26 | 32.20 | 39.03 | ----- | z | 52.39 | 52.74 | 45.50 | 36.26 | 26.13 | 27.81 | 34.91 | a | |||||||||||
1974 | 16.73 | a | 27.86 | 27.61 | 33.79 | a | 37.48 | b | 48.17 | 51.87 | 51.74 | 43.50 | 37.16 | 29.38 | a | 25.10 | 35.87 | |||||||||
1975 | 21.13 | 19.86 | 25.16 | 29.87 | 38.32 | 45.10 | 56.16 | 47.94 | 42.77 | 36.45 | 25.43 | 25.32 | 34.46 | |||||||||||||
1976 | 22.87 | 23.03 | ----- | z | 31.57 | ----- | z | ----- | z | ----- | z | ----- | z | 48.03 | a | ----- | z | ----- | z | ----- | z | 31.38 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.75 | 22.68 | 26.64 | 32.49 | 39.01 | 45.05 | 51.09 | 49.41 | 42.63 | 35.54 | 27.42 | 21.95 | 34.60 | |||||||||||||
S.D. | 6.81 | 5.04 | 3.28 | 2.04 | 2.66 | 2.85 | 3.90 | 4.40 | 3.84 | 2.97 | 3.67 | 4.56 | 2.01 | |||||||||||||
SKEW | -1.19 | -0.85 | -0.54 | 0.56 | 0.18 | 0.59 | 0.67 | 0.96 | 0.44 | 0.50 | 0.10 | -0.33 | 0.25 | |||||||||||||
MAX | 31.03 | 30.07 | 32.68 | 38.27 | 45.30 | 54.67 | 59.42 | 61.19 | 52.13 | 42.71 | 36.87 | 30.77 | 38.63 | |||||||||||||
MIN | -2.87 | 6.52 | 16.67 | 28.41 | 33.65 | 39.27 | 45.94 | 43.55 | 36.07 | 29.39 | 20.13 | 10.52 | 30.90 | |||||||||||||
YRS | 52 | 51 | 53 | 53 | 52 | 51 | 52 | 54 | 52 | 51 | 50 | 51 | 42 |