YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1904 | ----- | z | ----- | z | 32.41 | h | 37.43 | c | 45.21 | 52.57 | 59.93 | a | 57.63 | 53.42 | 42.91 | h | 34.37 | 23.58 | 45.52 | d | ||||||
1905 | 23.35 | a | 24.36 | 31.19 | b | 33.89 | c | 42.44 | 57.80 | 57.82 | 59.48 | 53.67 | 39.94 | 33.82 | 24.37 | a | 40.18 | |||||||||
1906 | 28.19 | 34.19 | a | 37.92 | e | 42.46 | b | 49.08 | 56.65 | 57.06 | 59.02 | 52.48 | 42.87 | 37.17 | d | 36.58 | 44.47 | |||||||||
1907 | ----- | z | 38.14 | 36.03 | 37.57 | 40.13 | 52.55 | 61.08 | a | 59.21 | 52.22 | a | 43.45 | 31.83 | a | 27.22 | b | 43.59 | a | |||||||
1908 | 27.16 | 29.88 | a | 34.66 | 39.73 | 43.32 | a | 54.57 | a | 59.15 | 58.16 | 54.75 | 39.39 | 32.07 | 28.37 | 41.77 | ||||||||||
1909 | 30.43 | b | 24.30 | 28.71 | 34.21 | a | 42.07 | b | 58.47 | 63.35 | 59.31 | b | 50.47 | 45.78 | a | 37.80 | 22.69 | 41.47 | ||||||||
1910 | 28.84 | 26.23 | 42.21 | 42.55 | a | 48.18 | 58.98 | b | 63.87 | 61.42 | 57.93 | 47.19 | 38.85 | 32.27 | 45.71 | |||||||||||
1911 | 33.72 | b | 26.62 | 33.60 | a | 37.93 | 48.10 | 56.65 | 54.94 | 57.05 | 53.73 | 41.60 | 28.09 | a | 21.23 | 41.10 | ||||||||||
1912 | 25.84 | 22.86 | a | 28.89 | 33.15 | 44.71 | 49.79 | f | 57.02 | d | 56.63 | 45.02 | a | 39.81 | 34.12 | 22.67 | b | 37.34 | a | |||||||
1913 | 17.86 | f | 19.02 | 24.19 | 36.22 | 46.11 | 51.58 | 57.03 | 58.87 | a | 46.83 | 36.31 | 35.65 | 21.85 | 39.42 | a | ||||||||||
1914 | 25.27 | 22.77 | 28.58 | 34.13 | 45.74 | h | 56.08 | 59.00 | a | 59.13 | 56.24 | a | 44.50 | 41.17 | 21.77 | 40.79 | a | |||||||||
1915 | 21.76 | 26.59 | 25.08 | 38.37 | 40.08 | 50.53 | 57.05 | 54.08 | 49.97 | 43.92 | 30.88 | 27.18 | 38.79 | |||||||||||||
1916 | 22.23 | 28.41 | 33.35 | 34.40 | 42.79 | 53.72 | 59.84 | 55.63 | 50.07 | a | 39.98 | 28.28 | 17.18 | 38.82 | ||||||||||||
1917 | 19.48 | 22.82 | 21.94 | 31.80 | 34.94 | 48.62 | 54.87 | a | 50.93 | a | 47.83 | 37.02 | a | 36.82 | 28.45 | 36.29 | ||||||||||
1918 | 18.05 | 26.58 | b | 32.89 | 30.88 | 44.43 | a | 57.65 | 54.58 | 57.53 | 49.07 | 42.97 | 26.73 | b | 21.45 | 38.57 | ||||||||||
1919 | 24.34 | 19.82 | 24.68 | 35.02 | c | 45.00 | 51.92 | 59.00 | a | 59.28 | a | 53.30 | 38.52 | 30.08 | 28.50 | a | 39.12 | |||||||||
1920 | 29.66 | 26.14 | 23.97 | a | 27.73 | 43.84 | 51.77 | 54.25 | a | 49.52 | 48.62 | 40.79 | 29.52 | 23.62 | a | 37.45 | ||||||||||
1921 | 23.19 | 25.09 | 31.42 | 30.75 | 44.39 | 51.72 | 57.76 | 56.18 | 52.88 | 46.50 | 34.23 | 29.92 | 40.34 | |||||||||||||
1922 | 19.60 | 21.89 | 27.95 | 31.38 | 42.34 | 56.52 | c | 56.58 | 59.65 | a | 54.27 | 45.02 | 28.12 | 25.81 | 39.09 | |||||||||||
1923 | 25.97 | 22.00 | 21.89 | 33.78 | 42.31 | 52.55 | 57.71 | 54.66 | 48.28 | 35.85 | 33.20 | 25.97 | a | 37.85 | ||||||||||||
1924 | 22.44 | 28.66 | a | 21.08 | 33.50 | 40.34 | 53.33 | 57.12 | a | 57.03 | 51.13 | 41.93 | a | 34.40 | 25.03 | b | 38.83 | |||||||||
1925 | 22.47 | a | 27.89 | 31.05 | 39.98 | 45.48 | 52.95 | 58.11 | 53.82 | 50.08 | 42.42 | a | 32.50 | 30.13 | 40.57 | |||||||||||
1926 | 18.89 | 25.94 | a | 25.89 | 33.25 | 42.52 | a | 50.91 | a | 55.05 | 57.45 | 51.38 | b | 45.02 | 31.55 | 26.42 | 38.69 | |||||||||
1927 | 30.43 | a | 26.91 | 29.35 | a | 37.58 | 48.03 | 53.92 | 56.79 | 54.52 | a | 50.47 | 44.10 | 35.23 | 21.73 | 40.75 | ||||||||||
1928 | 28.84 | 25.05 | 29.76 | ----- | z | 44.02 | 52.91 | a | 57.76 | 56.74 | 53.67 | 44.53 | 37.12 | a | ----- | z | 43.04 | b | ||||||||
1929 | ----- | z | 17.39 | f | 27.61 | 35.32 | 42.69 | 55.45 | 58.79 | 58.17 | a | 51.62 | 44.45 | 24.62 | 27.88 | a | 42.66 | b | ||||||||
1930 | 18.63 | 31.27 | 26.06 | 42.68 | 40.68 | 58.31 | a | 60.18 | 58.43 | a | 52.27 | 42.76 | 33.68 | 29.29 | c | 41.19 | ||||||||||
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 | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | 20.59 | 32.61 | 36.23 | 48.13 | 54.27 | 61.74 | 57.13 | 52.35 | 42.18 | 35.62 | a | 25.44 | 42.39 | a | ||||||||||
1967 | 24.81 | 23.64 | 32.71 | 35.97 | 42.00 | 50.63 | 57.56 | 55.18 | 50.22 | 44.55 | 32.60 | a | 19.95 | 39.15 | ||||||||||||
1968 | 26.69 | 26.66 | 29.68 | 31.81 | a | 41.74 | 56.58 | 57.79 | 54.95 | 50.07 | 43.66 | 27.74 | a | 22.39 | 39.15 | |||||||||||
1969 | 26.32 | 24.52 | 22.40 | 39.23 | b | 48.13 | 50.41 | a | 61.27 | 60.77 | a | 53.23 | 35.34 | 31.13 | 25.06 | 39.82 | ||||||||||
1970 | 20.73 | a | 26.64 | 22.03 | a | 29.45 | 46.42 | 52.77 | 59.42 | 60.34 | 49.93 | a | 35.53 | 29.58 | 25.48 | 38.19 | ||||||||||
1971 | 23.90 | a | 22.98 | 26.55 | a | 33.48 | a | 42.42 | 56.55 | 58.90 | a | 54.76 | 45.30 | 39.77 | 30.02 | 20.81 | b | 37.95 | ||||||||
1972 | 23.12 | a | 26.88 | 33.74 | 36.10 | a | 43.29 | 55.43 | 57.97 | 56.23 | ----- | z | ----- | z | ----- | z | ----- | z | 41.59 | d | ||||||
1973 | ----- | z | ----- | z | 25.81 | 29.77 | 41.97 | 52.75 | 61.17 | a | 58.97 | ----- | z | 44.20 | a | 33.00 | ----- | z | 43.45 | d | ||||||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | 25.18 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 24.63 | 25.79 | 28.98 | 35.23 | 43.74 | 54.06 | 58.33 | 57.08 | 51.30 | 41.87 | 32.69 | 25.32 | 39.81 | |||||||||||||
S.D. | 4.01 | 3.93 | 5.02 | 3.79 | 2.99 | 2.70 | 2.33 | 2.62 | 2.88 | 3.28 | 3.72 | 3.99 | 2.08 | |||||||||||||
SKEW | 0.23 | 1.00 | 0.42 | 0.24 | -0.31 | 0.13 | 0.39 | -0.88 | -0.14 | -0.57 | 0.03 | 0.53 | 1.14 | |||||||||||||
MAX | 33.72 | 38.14 | 42.21 | 42.68 | 49.08 | 58.98 | 63.87 | 61.42 | 57.93 | 47.19 | 41.17 | 36.58 | 45.71 | |||||||||||||
MIN | 18.05 | 19.02 | 21.08 | 27.73 | 34.94 | 48.62 | 54.25 | 49.52 | 45.02 | 35.34 | 24.62 | 17.18 | 36.29 | |||||||||||||
YRS | 29 | 32 | 34 | 34 | 34 | 34 | 35 | 35 | 33 | 33 | 34 | 32 | 25 |