YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1894 | ----- | z | ----- | z | ----- | z | ----- | z | 39.32 | 46.34 | a | 48.94 | 49.52 | 45.44 | c | 39.07 | c | 35.07 | 28.52 | 41.53 | d | |||||
1895 | 25.77 | 27.93 | 27.87 | 34.80 | 41.16 | 43.69 | a | 47.07 | a | 44.97 | 41.97 | 34.52 | 29.77 | 30.39 | 35.82 | |||||||||||
1896 | 29.29 | 30.59 | 29.39 | 32.37 | 37.74 | 43.77 | 50.16 | 49.42 | 42.60 | 37.14 | c | ----- | z | ----- | z | 38.25 | b | |||||||||
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 | 28.16 | 33.57 | 33.26 | 36.03 | 42.68 | 43.93 | 46.29 | 44.97 | b | 41.47 | 38.83 | a | ----- | z | ----- | z | 38.92 | b | ||||||||
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.87 | o | 43.81 | 42.26 | 38.03 | 30.45 | 27.65 | j | 21.65 | 35.24 | g | |||||
1904 | ----- | z | 23.04 | b | ----- | z | ----- | z | 38.73 | a | 42.41 | a | 47.23 | 46.19 | ----- | z | ----- | z | ----- | z | ----- | z | 39.52 | g | ||
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 | 46.23 | 47.23 | 49.81 | 39.30 | 35.35 | 25.93 | a | 30.90 | b | 39.25 | e | |||||
1937 | 15.07 | b | 27.82 | 32.35 | 34.40 | 37.81 | 46.10 | 46.06 | ----- | z | 41.60 | 38.90 | b | 37.47 | 31.67 | a | 35.39 | a | ||||||||
1938 | 29.43 | a | 29.37 | a | 31.00 | a | 35.13 | 38.03 | 44.03 | 45.68 | 39.68 | 42.57 | i | 38.16 | 29.90 | a | ----- | z | 36.04 | b | ||||||
1939 | ----- | z | 29.36 | c | 29.00 | c | 35.03 | 39.32 | 41.53 | 45.84 | 42.58 | 40.80 | 38.03 | 29.53 | 32.94 | 36.72 | a | |||||||||
1940 | 28.29 | 33.38 | 33.84 | 37.33 | 39.19 | 41.77 | 45.97 | 41.65 | 46.63 | 41.52 | 31.80 | 30.45 | 37.65 | |||||||||||||
1941 | 29.74 | 30.39 | 32.74 | 35.77 | 42.13 | 44.50 | 46.03 | 48.06 | 42.97 | 38.16 | 33.13 | 31.00 | 37.89 | |||||||||||||
1942 | 24.71 | 30.18 | 30.29 | 35.80 | 41.06 | 42.93 | 48.03 | 46.45 | 38.33 | 35.10 | 34.30 | 31.29 | 36.54 | |||||||||||||
1943 | 28.92 | s | 26.46 | o | 29.94 | 36.97 | a | 37.77 | 43.60 | 45.58 | 44.45 | 43.03 | 40.50 | a | 33.17 | 27.97 | 38.30 | b | ||||||||
1944 | 27.10 | 30.64 | a | 28.37 | a | 34.87 | 37.77 | 44.33 | 43.26 | 41.90 | 40.40 | 38.30 | a | 30.27 | 26.84 | 35.34 | ||||||||||
1945 | 27.97 | 30.75 | 30.65 | 34.03 | 41.35 | 41.33 | 43.06 | 43.10 | 39.40 | 34.97 | 33.20 | 29.13 | 35.75 | |||||||||||||
1946 | 29.94 | 30.46 | 32.19 | 33.27 | 39.16 | 44.47 | 46.77 | 43.97 | 40.07 | 35.29 | 30.72 | a | 30.74 | 36.42 | ||||||||||||
1947 | 23.81 | 28.61 | 31.90 | 36.50 | 41.29 | 45.87 | 48.77 | 46.58 | 42.47 | 42.42 | 34.17 | 30.03 | 37.70 | |||||||||||||
1948 | 26.90 | 26.03 | 30.77 | 34.70 | 40.52 | 48.20 | 45.97 | 48.23 | a | 39.62 | a | 35.55 | 30.23 | 22.71 | 35.79 | |||||||||||
1949 | 10.87 | 25.96 | a | 31.16 | 32.33 | 40.77 | 39.63 | 43.23 | 44.77 | 42.40 | 33.19 | 33.10 | 27.71 | 33.76 | ||||||||||||
1950 | 21.67 | a | 29.60 | c | 30.45 | 32.07 | 34.58 | 44.80 | 44.48 | 43.23 | 39.07 | 39.58 | 32.77 | 35.00 | 35.61 | |||||||||||
1951 | 26.77 | 29.39 | 26.67 | a | 29.97 | 37.73 | a | 39.43 | 45.19 | 41.74 | d | 39.57 | 39.23 | 31.37 | 26.84 | 34.49 | ||||||||||
1952 | 25.19 | 27.03 | 29.90 | 31.88 | e | 39.12 | w | 44.70 | 45.06 | 45.32 | 41.37 | 36.90 | 26.43 | 28.45 | 34.75 | a | ||||||||||
1953 | 34.85 | e | 31.32 | 31.06 | 35.23 | 40.61 | 45.17 | 48.19 | 50.65 | 44.40 | 38.03 | 35.57 | 31.48 | 38.88 | ||||||||||||
1954 | 27.87 | 28.96 | 26.77 | 33.60 | 39.52 | 43.87 | 47.68 | 45.97 | 44.20 | 36.97 | a | 37.28 | a | 28.52 | 36.77 | |||||||||||
1955 | 27.84 | 28.32 | 27.55 | 31.70 | 36.48 | 45.37 | 48.06 | 45.13 | 42.00 | 39.06 | 28.73 | 28.07 | b | 35.69 | ||||||||||||
1956 | 27.68 | 24.96 | b | 28.55 | 33.97 | 41.60 | a | 44.27 | 49.94 | 47.55 | 41.87 | 36.48 | 29.23 | 29.65 | 36.31 | |||||||||||
1957 | 20.23 | 29.25 | 33.45 | 37.00 | a | 44.94 | 47.97 | 46.74 | 45.39 | 43.63 | 37.52 | 28.80 | 30.10 | 37.08 | ||||||||||||
1958 | 30.48 | 36.04 | 29.00 | 34.87 | 43.68 | 50.43 | 51.19 | 49.23 | 43.87 | 37.71 | 33.70 | 34.61 | 39.57 | |||||||||||||
1959 | 31.26 | 29.57 | 31.52 | 34.27 | 38.23 | 45.53 | 47.42 | 44.32 | 44.67 | 40.97 | 31.87 | 30.32 | 37.49 | |||||||||||||
1960 | 26.13 | 29.86 | 30.97 | 36.10 | 39.94 | 45.60 | 49.48 | 47.26 | 43.90 | 39.03 | 32.40 | 28.42 | 37.42 | |||||||||||||
1961 | 30.35 | 34.29 | 33.65 | 34.23 | 42.23 | 48.77 | 48.10 | 51.65 | 41.57 | 38.13 | 29.37 | 30.39 | 38.56 | |||||||||||||
1962 | 26.16 | 29.64 | 30.23 | 36.67 | 40.42 | 42.90 | 47.45 | 49.68 | 45.17 | 38.84 | 34.77 | 30.68 | 37.72 | |||||||||||||
1963 | 23.16 | 34.93 | 31.45 | 35.13 | 40.13 | 46.23 | 47.77 | 48.94 | 48.17 | 40.23 | 35.23 | 30.23 | 38.47 | |||||||||||||
1964 | 31.97 | 28.10 | 30.87 | 33.63 | 38.00 | 46.27 | 49.32 | 47.77 | ----- | z | 38.65 | 31.13 | 29.19 | 36.81 | a | |||||||||||
1965 | 30.03 | 30.92 | c | 29.55 | 36.67 | 38.45 | 44.23 | 49.45 | 50.16 | 41.30 | 40.39 | 36.63 | 27.74 | 37.96 | ||||||||||||
1966 | 28.17 | a | 29.82 | 30.42 | 34.60 | 39.16 | 45.03 | a | 48.87 | 47.59 | b | 45.83 | 37.94 | 36.66 | a | 33.29 | 38.11 | |||||||||
1967 | 32.81 | 30.14 | 32.16 | 33.50 | 39.45 | 48.93 | 49.63 | a | 51.06 | 46.17 | 39.03 | 38.37 | 30.03 | 39.27 | ||||||||||||
1968 | 27.55 | 33.38 | 34.53 | a | 34.70 | 41.43 | a | 47.00 | 49.45 | 50.10 | 45.50 | ----- | z | 34.57 | 27.97 | 38.74 | a | |||||||||
1969 | 25.97 | a | 28.50 | 28.97 | 35.20 | 42.65 | 51.03 | ----- | z | 47.39 | 44.37 | 37.50 | a | 32.23 | 33.03 | a | 36.98 | a | ||||||||
1970 | 30.23 | 30.18 | 30.93 | c | 32.10 | 38.81 | 48.77 | 48.39 | 46.84 | 39.53 | 34.61 | 33.73 | 25.52 | 36.64 | ||||||||||||
1971 | 24.87 | 29.11 | 27.90 | 32.00 | a | 40.10 | 43.34 | a | 50.03 | 51.45 | 40.77 | 34.48 | 32.17 | 28.42 | 36.22 | |||||||||||
1972 | 24.26 | 28.79 | 33.81 | 32.77 | 40.13 | 45.31 | a | 49.55 | 49.45 | 40.30 | ----- | z | ----- | z | ----- | z | 38.26 | c | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.83 | 29.75 | 30.64 | 34.39 | 39.85 | 44.99 | 47.30 | 46.58 | 42.34 | 37.67 | 32.49 | 29.52 | 36.96 | |||||||||||||
S.D. | 4.54 | 2.60 | 2.00 | 1.73 | 2.02 | 2.55 | 2.06 | 3.06 | 2.48 | 2.40 | 2.98 | 2.73 | 1.42 | |||||||||||||
SKEW | -1.51 | 0.12 | -0.05 | -0.38 | 0.08 | 0.19 | -0.33 | -0.24 | 0.29 | -0.65 | -0.09 | -0.63 | -0.17 | |||||||||||||
MAX | 34.85 | 36.04 | 34.53 | 37.33 | 44.94 | 51.03 | 51.19 | 51.65 | 48.17 | 42.42 | 38.37 | 35.00 | 39.57 | |||||||||||||
MIN | 10.87 | 23.04 | 26.67 | 29.97 | 34.58 | 39.43 | 43.06 | 39.68 | 38.03 | 30.45 | 25.93 | 21.65 | 33.76 | |||||||||||||
YRS | 37 | 39 | 39 | 39 | 40 | 42 | 42 | 42 | 40 | 40 | 38 | 38 | 28 |