YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1895 | ----- | z | ----- | z | ----- | z | ----- | z | 51.42 | s | 53.47 | 60.97 | 61.16 | 53.63 | 40.52 | 29.53 | 21.40 | a | 45.81 | e | ||||||
1896 | 19.16 | 18.31 | 24.10 | 29.57 | 39.84 | 50.43 | 53.94 | 52.39 | 45.70 | 34.52 | 21.03 | 13.30 | h | 35.36 | a | |||||||||||
1897 | 22.06 | 27.29 | 30.29 | 39.47 | 51.48 | 54.33 | 61.52 | 60.39 | 56.10 | 41.74 | 29.13 | 21.41 | i | 43.07 | a | |||||||||||
1898 | 20.03 | 28.18 | 29.13 | 42.97 | 45.65 | 57.17 | 64.48 | 64.29 | 52.33 | 40.87 | 29.93 | a | 18.53 | a | 41.13 | |||||||||||
1899 | 19.74 | 23.32 | 30.87 | a | 39.83 | 43.35 | 54.07 | 63.16 | 58.94 | 53.73 | 40.13 | 30.80 | 23.77 | 40.14 | ||||||||||||
1900 | 25.00 | 24.89 | a | 33.39 | 37.50 | 48.10 | 55.53 | 60.11 | m | 56.10 | 53.90 | a | 40.84 | 30.55 | a | 18.45 | k | 40.58 | b | |||||||
1901 | 21.90 | 28.23 | b | 27.91 | i | 35.96 | d | 48.32 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.60 | h | ||
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 | ----- | 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 | ----- | 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 | 50.62 | a | 36.68 | 18.87 | 18.94 | 31.28 | h | |||
1939 | 20.10 | 14.14 | 26.26 | 34.77 | 40.77 | 45.07 | 54.43 | a | 54.18 | c | 48.74 | c | 31.32 | c | 23.33 | f | 20.00 | c | 35.43 | a | ||||||
1940 | 19.37 | a | 23.62 | 28.19 | 33.10 | 43.35 | 51.47 | 57.71 | 55.55 | 49.67 | 37.87 | a | 24.47 | 22.63 | a | 37.25 | ||||||||||
1941 | 23.00 | 26.96 | 29.26 | 34.00 | 44.71 | 48.33 | 54.73 | a | 55.52 | 48.83 | 39.87 | 25.12 | f | 19.44 | f | 40.52 | b | |||||||||
1942 | 16.63 | d | 13.25 | d | 24.90 | a | 39.04 | d | 41.15 | e | 49.15 | c | 58.38 | b | 54.54 | c | 44.81 | d | 34.93 | d | 26.14 | h | 23.94 | 36.43 | a | |
1943 | 20.90 | a | 23.29 | 27.43 | a | 36.50 | 44.10 | 50.59 | c | 59.50 | a | 60.83 | b | 48.59 | c | 34.07 | d | 22.93 | a | 18.87 | a | 37.30 | ||||
1944 | 12.74 | h | 23.52 | 25.42 | 33.77 | 41.87 | 47.40 | 57.26 | 55.84 | 47.57 | 40.39 | 28.27 | 19.48 | 38.25 | a | |||||||||||
1945 | 21.27 | a | 23.21 | 25.52 | 32.57 | 40.74 | 43.70 | 58.13 | 59.52 | 46.00 | 38.65 | 22.60 | 14.13 | 35.50 | ||||||||||||
1946 | 15.39 | 16.79 | 27.90 | 39.80 | 40.77 | 50.73 | 59.16 | 57.58 | 50.57 | 36.32 | 25.00 | 20.58 | 36.72 | |||||||||||||
1947 | 15.29 | 20.93 | 26.58 | 34.37 | 45.45 | 48.03 | 56.48 | 57.97 | 48.67 | 38.00 | 22.10 | 18.16 | 36.00 | |||||||||||||
1948 | 16.55 | 22.93 | a | 23.87 | 35.90 | 43.19 | 49.87 | 56.23 | 56.00 | 47.00 | 36.65 | 20.53 | 19.19 | 35.66 | ||||||||||||
1949 | 20.03 | b | 19.29 | 28.06 | 36.43 | 42.39 | 49.47 | 60.16 | 54.23 | 51.03 | 36.45 | 24.27 | 15.23 | 36.42 | ||||||||||||
1950 | 16.55 | 23.39 | 25.68 | 34.77 | 39.93 | b | 49.80 | 58.33 | d | 53.00 | c | 45.72 | a | 39.13 | a | 23.42 | d | 18.13 | 35.65 | |||||||
1951 | 16.43 | c | 17.61 | e | 27.14 | c | 33.14 | a | 42.71 | c | 45.27 | d | 59.30 | d | 57.39 | c | 42.48 | e | 35.37 | a | 21.83 | 18.83 | a | 34.79 | ||
1952 | 20.35 | 19.82 | a | 25.82 | c | 35.66 | a | 44.13 | a | 53.79 | a | 58.13 | 59.64 | f | 46.45 | a | 32.15 | e | 20.38 | d | 15.76 | b | 33.86 | a | ||
1953 | 22.00 | 17.73 | b | 27.81 | d | 33.30 | 37.61 | 50.40 | e | 59.84 | 53.84 | 42.63 | ----- | z | 27.36 | e | 16.65 | 35.38 | a | |||||||
1954 | 20.13 | 23.39 | 28.68 | 39.67 | 46.42 | 50.37 | 61.06 | 56.26 | 50.53 | 39.42 | 25.53 | 17.90 | 38.28 | |||||||||||||
1955 | 17.58 | 16.18 | 28.00 | 34.03 | 44.10 | 49.17 | 58.48 | 59.84 | 48.10 | 37.39 | 25.20 | 20.19 | 36.52 | |||||||||||||
1956 | 23.61 | 17.93 | 25.68 | 32.67 | 42.03 | 53.90 | 56.87 | 53.71 | 47.10 | 38.13 | 18.23 | 14.23 | 35.34 | |||||||||||||
1957 | 25.32 | 30.93 | 31.45 | 35.10 | 43.23 | 51.57 | 60.13 | 59.00 | 44.70 | 39.90 | 27.20 | 20.13 | 39.05 | |||||||||||||
1958 | 19.45 | 26.07 | 28.74 | 34.83 | 46.71 | 55.03 | 57.13 | 58.61 | 52.47 | 39.61 | 26.30 | 19.48 | 38.70 | |||||||||||||
1959 | 16.55 | 21.96 | 25.42 | 37.43 | 42.16 | 55.57 | 58.06 | 59.65 | 44.87 | 36.39 | 24.37 | 22.77 | 37.10 | |||||||||||||
1960 | 17.55 | 21.38 | 30.68 | 36.37 | 41.58 | 51.80 | 57.74 | 56.45 | 49.90 | 36.90 | 26.53 | 20.32 | 37.27 | |||||||||||||
1961 | 13.29 | 23.64 | 30.52 | 33.80 | 42.74 | 53.73 | 58.00 | 58.97 | 46.27 | 33.84 | 26.87 | 19.45 | 36.76 | |||||||||||||
1962 | 18.32 | 25.04 | 21.45 | 37.00 | 40.87 | 50.20 | 58.90 | 54.19 | 52.53 | 38.94 | 30.80 | 22.45 | 37.56 | |||||||||||||
1963 | 13.90 | 24.18 | 27.55 | 36.57 | 45.03 | 49.00 | 60.16 | 59.23 | 52.50 | 40.52 | 27.33 | 15.66 | b | 37.64 | ||||||||||||
1964 | 13.03 | 14.69 | 24.90 | 34.50 | 45.03 | 49.63 | 61.65 | 57.06 | 53.03 | 36.42 | 27.43 | 22.52 | 36.66 | |||||||||||||
1965 | 24.06 | 22.96 | 27.48 | 36.87 | 42.87 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 20.03 | 29.05 | f | ||||||
1966 | 14.29 | 19.39 | 26.10 | 36.53 | 46.48 | 52.87 | 61.87 | 57.74 | 49.63 | 35.65 | 28.20 | 18.13 | 37.24 | |||||||||||||
1967 | 14.00 | 23.71 | 32.61 | 35.87 | 42.26 | 51.40 | 62.16 | 57.13 | 49.27 | 35.71 | 27.27 | 20.87 | 37.69 | |||||||||||||
1968 | 19.55 | 27.59 | 29.06 | 34.57 | 41.74 | 49.97 | 58.63 | a | 56.87 | 45.57 | 35.97 | 28.20 | 15.13 | 36.90 | ||||||||||||
1969 | 24.45 | 21.25 | 24.19 | 36.53 | 43.71 | 48.89 | c | 60.81 | 58.94 | 50.77 | 38.39 | 25.87 | 22.71 | 38.04 | ||||||||||||
1970 | 16.06 | 24.36 | 27.48 | 29.90 | 41.94 | 50.93 | 58.94 | 58.87 | 47.17 | 34.10 | 25.77 | 17.32 | 36.07 | |||||||||||||
1971 | 13.19 | 20.14 | 25.06 | 31.80 | 38.65 | 49.20 | 58.58 | 55.52 | 45.57 | 36.39 | 26.90 | 18.65 | 34.97 | |||||||||||||
1972 | 17.65 | 22.00 | 30.45 | 32.73 | 40.71 | 51.70 | 58.39 | 56.45 | 49.37 | 43.65 | 28.23 | 18.81 | 37.51 | |||||||||||||
1973 | 20.32 | 24.79 | 29.97 | 29.27 | 41.10 | 48.89 | c | 56.26 | 54.52 | 44.33 | 33.45 | 23.53 | 17.00 | 35.29 | ||||||||||||
1974 | 19.52 | 17.18 | 31.06 | 33.70 | 42.94 | 53.57 | 59.87 | 55.23 | 48.57 | 42.84 | 28.17 | 17.87 | 37.54 | |||||||||||||
1975 | 16.87 | 24.36 | 29.06 | 31.30 | 40.39 | 48.03 | 58.06 | 55.26 | 48.40 | 34.29 | 24.03 | 20.35 | 35.87 | |||||||||||||
1976 | 15.06 | 25.76 | 28.13 | 34.83 | 45.80 | a | 51.13 | 59.06 | 55.58 | 50.63 | 34.87 | 19.57 | 15.23 | 36.31 | ||||||||||||
1977 | 15.13 | 22.39 | 25.06 | 38.37 | 43.29 | 53.77 | 60.90 | b | 60.87 | a | 50.97 | 38.50 | a | 29.37 | 24.94 | 38.63 | ||||||||||
1978 | 26.45 | 26.61 | 32.68 | 38.00 | 42.68 | 53.23 | 60.52 | 56.06 | 50.23 | 39.58 | 33.93 | b | 17.97 | 39.83 | ||||||||||||
1979 | 21.16 | 23.54 | 29.90 | 35.37 | 44.90 | 50.37 | 57.39 | 56.00 | b | 49.37 | 36.19 | 24.57 | 19.52 | 37.36 | ||||||||||||
1980 | 26.45 | 27.29 | a | 28.63 | a | 34.21 | a | 42.04 | d | 54.00 | 64.84 | 60.32 | 52.93 | 36.00 | a | 26.00 | c | 23.80 | a | 39.71 | ||||||
1981 | 20.86 | b | 22.81 | a | 30.21 | b | 39.30 | c | 48.00 | a | 57.11 | c | 63.00 | c | 60.66 | b | 53.14 | a | 41.25 | c | ----- | z | 22.81 | 41.74 | a | |
1982 | 22.23 | ----- | z | ----- | z | 38.90 | j | 46.40 | u | 53.74 | k | 59.60 | f | 59.88 | e | ----- | z | ----- | z | ----- | z | ----- | z | 41.06 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.14 | 22.41 | 27.87 | 35.38 | 43.25 | 51.11 | 59.13 | 57.25 | 49.03 | 37.52 | 25.74 | 19.36 | 37.20 | |||||||||||||
S.D. | 3.61 | 3.94 | 2.59 | 2.82 | 2.67 | 2.95 | 2.38 | 2.55 | 3.16 | 2.79 | 3.48 | 2.71 | 1.49 | |||||||||||||
SKEW | 0.16 | -0.38 | -0.01 | 0.12 | 0.65 | -0.12 | 0.21 | 0.32 | -0.04 | 0.02 | -0.19 | 0.03 | 0.65 | |||||||||||||
MAX | 26.45 | 30.93 | 33.39 | 42.97 | 51.48 | 57.17 | 64.84 | 64.29 | 56.10 | 43.65 | 33.93 | 24.94 | 41.13 | |||||||||||||
MIN | 13.03 | 13.25 | 21.45 | 29.27 | 37.61 | 43.70 | 53.94 | 52.39 | 42.48 | 31.32 | 18.23 | 14.13 | 34.79 | |||||||||||||
YRS | 49 | 49 | 48 | 49 | 49 | 48 | 47 | 48 | 49 | 48 | 45 | 46 | 37 |