YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | 24.62 | 32.76 | 42.33 | 50.90 | 62.93 | 67.84 | 64.76 | ----- | z | ----- | z | ----- | z | ----- | z | 49.45 | e | |||||||
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 | 51.95 | 64.93 | 71.56 | 68.10 | a | 62.15 | 52.95 | 40.77 | 32.23 | a | 55.58 | d | ||||||
1911 | 30.24 | 27.05 | 41.26 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.36 | f | 32.85 | i | |||
1912 | 24.54 | g | 27.76 | f | 24.60 | a | 44.00 | b | 53.48 | a | 60.48 | 66.90 | 66.60 | a | 52.52 | c | 46.20 | d | 38.03 | a | 26.76 | b | 47.96 | b | ||
1913 | 21.61 | d | 16.31 | a | 32.92 | 45.93 | a | 54.58 | a | 63.05 | 68.21 | b | 70.23 | c | 55.62 | 42.55 | 38.64 | b | 19.11 | 44.06 | ||||||
1914 | 28.23 | 23.14 | 35.44 | e | 42.18 | b | 52.81 | b | 64.22 | a | 69.29 | b | 68.03 | b | 60.69 | a | 49.00 | a | 40.02 | a | 19.20 | a | 46.02 | |||
1915 | 24.27 | c | 31.96 | c | 28.57 | a | 47.46 | b | 49.72 | a | 57.05 | b | 65.14 | c | 63.21 | b | 57.86 | a | 48.91 | d | 37.06 | c | 28.63 | e | 44.99 | |
1916 | 16.84 | b | 31.37 | f | 40.40 | 42.00 | e | 51.57 | a | 60.68 | 70.57 | c | 65.60 | b | 56.85 | c | 43.06 | 31.95 | a | 19.86 | b | 45.40 | a | |||
1917 | 22.98 | 28.54 | 29.12 | c | 41.32 | b | 45.63 | h | 60.36 | b | 69.48 | b | 62.63 | e | 60.23 | d | 45.97 | a | 41.91 | b | 28.59 | b | 44.65 | a | ||
1918 | 17.43 | d | 27.80 | a | 40.62 | c | 37.27 | b | 53.11 | d | 68.16 | b | 66.34 | b | 67.65 | a | 54.60 | e | 51.11 | d | 31.87 | g | 27.09 | c | 46.47 | a |
1919 | 29.98 | f | 25.35 | a | 35.32 | a | 45.22 | a | 53.32 | c | 63.66 | a | 70.50 | 68.28 | a | 60.88 | 41.02 | b | ----- | z | 21.83 | b | 48.54 | b | ||
1920 | 30.89 | d | 28.92 | c | 33.33 | a | 33.54 | f | 51.79 | 61.37 | 67.82 | 64.81 | b | 60.23 | f | 48.19 | 32.68 | 27.95 | 44.78 | b | ||||||
1921 | 27.73 | i | 30.19 | a | 39.58 | e | 43.17 | c | 54.88 | e | 63.77 | d | 68.33 | d | 67.94 | m | 62.33 | l | 48.00 | v | 36.65 | f | 31.17 | p | 49.99 | f |
1922 | 15.89 | m | 21.29 | g | 40.90 | u | 46.22 | u | 54.43 | b | 65.29 | d | 68.42 | g | 70.98 | g | 62.22 | e | 49.36 | c | 31.63 | g | 28.10 | j | 57.82 | h |
1923 | 32.08 | a | 24.30 | 30.48 | a | 42.87 | d | 53.28 | f | 61.63 | d | 69.30 | d | 66.66 | b | 58.50 | b | 43.32 | a | 38.43 | c | 27.06 | d | 44.97 | a | |
1924 | 23.29 | 32.93 | b | 24.50 | c | 44.55 | b | 47.41 | n | 63.21 | f | 68.05 | c | 68.70 | c | 56.87 | c | 49.48 | a | 38.30 | b | 20.48 | a | 42.72 | b | |
1925 | 19.14 | m | 33.30 | e | 38.30 | c | 48.36 | a | 56.57 | c | 65.30 | b | 70.09 | b | 65.31 | e | 60.69 | a | 40.82 | c | 34.15 | c | 26.67 | e | 49.05 | a |
1926 | 24.63 | 34.90 | d | 33.20 | c | 44.85 | c | 55.31 | b | 63.54 | c | 68.28 | a | 67.63 | a | 56.19 | c | 48.85 | a | ----- | z | 23.90 | b | 47.39 | a | |
1927 | 29.63 | a | 32.07 | a | 33.03 | a | 43.98 | 55.73 | a | 61.52 | a | 68.19 | 64.58 | 60.33 | 52.62 | a | 41.59 | a | 21.97 | a | 47.10 | |||||
1928 | 31.55 | 30.45 | 37.55 | 43.48 | b | 55.78 | a | 56.62 | 69.31 | 70.16 | 65.27 | b | ----- | z | 36.95 | a | 26.10 | 47.56 | a | |||||||
1929 | 22.28 | b | 18.52 | a | 36.70 | a | 44.32 | 53.37 | 64.28 | ----- | z | 70.53 | 55.36 | a | 49.50 | 25.22 | a | 32.46 | c | 42.96 | a | |||||
1930 | 11.37 | 35.98 | 32.89 | 51.98 | 50.52 | 64.68 | 72.26 | 69.18 | 60.20 | 47.89 | 42.03 | k | 27.08 | l | 49.69 | b | ||||||||||
1931 | 32.10 | 34.12 | 33.92 | 45.45 | 53.11 | 69.13 | 73.39 | 70.48 | 65.98 | 51.61 | 34.25 | 31.32 | 49.57 | |||||||||||||
1932 | 23.37 | 33.11 | a | 27.75 | a | 46.88 | 55.95 | 64.05 | 74.19 | 70.68 | 60.50 | 43.95 | b | 38.00 | 18.06 | 46.37 | ||||||||||
1933 | 28.29 | 20.87 | a | 37.06 | 41.42 | 51.44 | 70.23 | 73.89 | 68.26 | 63.78 | 53.03 | 41.03 | a | 35.71 | 48.75 | |||||||||||
1934 | 35.06 | 33.00 | 39.90 | 47.52 | 62.66 | 67.07 | 75.37 | 71.35 | ----- | z | 56.16 | 42.26 | a | 32.98 | 51.21 | a | ||||||||||
1935 | 34.00 | 33.80 | 39.11 | l | 42.80 | 48.81 | 63.77 | 74.50 | 72.03 | 61.60 | a | 48.98 | a | 34.13 | 30.00 | 49.49 | a | |||||||||
1936 | 26.42 | 19.09 | a | 36.90 | 42.59 | b | ----- | z | 69.60 | 76.15 | h | 72.61 | 61.77 | 47.44 | 37.29 | a | 31.90 | 44.56 | b | |||||||
1937 | 12.00 | ----- | z | 32.32 | n | 45.07 | 56.21 | 63.18 | 72.56 | 74.65 | 65.09 | b | ----- | z | 30.27 | s | 27.05 | 51.98 | d | |||||||
1938 | 29.63 | a | 31.48 | 39.92 | a | 46.15 | 52.66 | 65.23 | 71.48 | 73.02 | 62.69 | a | 53.62 | a | 34.23 | 28.15 | 49.02 | |||||||||
1939 | 30.89 | 21.54 | b | 37.10 | 46.95 | 59.37 | a | 64.80 | 75.53 | a | 69.60 | 65.76 | a | 52.31 | b | 41.03 | 36.65 | 50.13 | ||||||||
1940 | 18.73 | 30.48 | a | 41.23 | a | 46.72 | a | 57.37 | 68.92 | 73.98 | 70.00 | 64.13 | 55.70 | f | 33.79 | p | 31.76 | 50.33 | b | |||||||
1941 | 31.68 | a | 32.96 | 32.77 | 43.85 | 58.27 | 62.38 | 70.89 | 69.26 | 58.48 | 47.52 | 40.36 | a | 31.34 | 48.31 | |||||||||||
1942 | 24.89 | 21.85 | a | 35.43 | a | 49.27 | 51.71 | 61.47 | 71.08 | 69.18 | 59.62 | 50.33 | b | 39.23 | 31.16 | c | 47.10 | |||||||||
1943 | 29.02 | a | 37.11 | a | 32.33 | b | 52.09 | a | 51.72 | a | 62.60 | 72.29 | 72.90 | 60.35 | 51.13 | a | 39.72 | 32.15 | 49.45 | |||||||
1944 | 27.60 | 30.31 | 31.42 | 40.33 | 55.15 | a | 63.25 | 68.13 | 70.61 | 61.17 | 51.60 | 37.20 | 27.27 | a | 47.00 | |||||||||||
1945 | 29.39 | 29.84 | 37.27 | a | 37.62 | 52.79 | 56.63 | 68.40 | 68.68 | 56.75 | 50.10 | 38.88 | 27.10 | 46.12 | ||||||||||||
1946 | 29.74 | 31.09 | 40.13 | 51.22 | 49.83 | a | 65.18 | 71.84 | 68.76 | 60.43 | 45.92 | 32.24 | a | 34.31 | b | 48.39 | ||||||||||
1947 | 28.67 | b | 26.66 | c | 33.19 | 44.37 | 53.33 | a | 59.55 | 69.84 | 71.78 | a | 64.97 | 52.87 | 30.47 | a | 32.00 | b | 47.31 | |||||||
1948 | 26.98 | b | 24.53 | 30.40 | 48.07 | 55.66 | 63.12 | 69.63 | 69.02 | 64.68 | 49.79 | 35.95 | 30.21 | 47.34 | ||||||||||||
1949 | 6.31 | w | 26.50 | 36.37 | a | 47.71 | a | 55.18 | 63.43 | 70.98 | 70.14 | i | 60.11 | g | 48.87 | e | 47.33 | 28.65 | 47.22 | c | ||||||
1950 | 23.66 | 34.61 | 34.74 | 44.27 | 50.79 | 64.97 | 66.98 | 66.39 | 57.50 | 54.34 | 36.35 | 35.30 | d | 47.49 | ||||||||||||
1951 | 23.79 | 29.15 | a | 31.76 | 40.43 | 54.21 | 56.97 | 69.19 | 66.20 | a | 56.08 | 45.73 | 33.30 | 24.48 | 44.27 | |||||||||||
1952 | 26.52 | 30.28 | 28.47 | 44.52 | 53.55 | 68.55 | 69.45 | 68.61 | 62.92 | 51.02 | 29.70 | 27.88 | b | 46.79 | ||||||||||||
1953 | 36.02 | 28.25 | 39.50 | 39.37 | 50.44 | 64.87 | 70.21 | 67.48 | 62.78 | 52.28 | a | 40.20 | c | 29.21 | j | 50.13 | a | |||||||||
1954 | 27.43 | h | 39.98 | 31.62 | c | 49.70 | 52.90 | 65.57 | a | 74.58 | 69.23 | 63.37 | 47.45 | a | 41.14 | b | 32.44 | 51.63 | a | |||||||
1955 | 22.39 | 22.43 | a | 30.60 | f | 47.58 | 56.56 | 60.80 | 73.12 | b | 70.69 | b | 60.79 | d | 52.66 | 27.69 | i | 30.71 | 49.77 | b | ||||||
1956 | 30.63 | 25.20 | a | 37.02 | 43.50 | 56.57 | b | 68.97 | 69.80 | c | 66.47 | 63.85 | 52.94 | d | 35.43 | a | 32.00 | f | 50.03 | a | ||||||
1957 | ----- | z | 36.46 | a | 35.38 | a | 39.97 | 50.90 | 64.26 | i | 71.56 | 69.56 | 59.33 | 48.96 | c | 34.24 | a | 36.94 | 48.33 | b | ||||||
1958 | 32.27 | 34.00 | f | 29.93 | h | 42.82 | 59.60 | 66.15 | 66.77 | 72.11 | 62.23 | 53.30 | a | 37.95 | 32.06 | 52.53 | b | |||||||||
1959 | 29.02 | b | 26.07 | a | 34.66 | 42.32 | 54.21 | 68.00 | 70.06 | 72.26 | 59.42 | 45.98 | 34.95 | 34.42 | 47.61 | |||||||||||
1960 | 26.31 | 23.74 | 34.22 | a | 48.03 | 55.34 | 66.08 | 71.79 | 70.76 | 64.08 | ----- | z | ----- | z | ----- | z | 51.15 | c | ||||||||
1961 | 32.15 | 34.09 | 35.03 | a | 42.88 | b | 53.15 | 65.03 | 70.32 | c | 71.02 | a | 54.23 | 48.84 | 35.02 | 27.44 | e | 47.43 | ||||||||
1962 | 19.58 | 29.45 | 32.92 | 48.78 | 58.55 | 62.47 | 68.19 | 70.13 | 61.48 | a | 55.56 | g | 41.77 | 35.00 | 48.03 | a | ||||||||||
1963 | 18.85 | a | 37.95 | 37.48 | 47.97 | 59.65 | 68.32 | 75.13 | 70.06 | 65.97 | 58.06 | 42.03 | 28.11 | 50.80 | ||||||||||||
1964 | 31.16 | 27.69 | 31.53 | 45.28 | 57.77 | 63.98 | 76.31 | 70.08 | 61.75 | 52.65 | 38.07 | 30.73 | 48.92 | |||||||||||||
1965 | 34.05 | 28.68 | 26.37 | 49.59 | a | 55.21 | 62.58 | 70.82 | 68.34 | 53.10 | 54.94 | 43.87 | 34.56 | 48.51 | ||||||||||||
1966 | 25.31 | 28.04 | 42.29 | 43.07 | a | 59.47 | 64.45 | 76.29 | 68.85 | 62.77 | 50.45 | 38.66 | a | 29.53 | 49.10 | |||||||||||
1967 | 32.19 | 34.48 | 42.37 | a | 47.26 | a | 53.02 | 61.02 | 69.06 | 68.00 | 60.72 | 51.82 | 37.20 | 23.87 | a | 48.42 | ||||||||||
1968 | 29.67 | a | 33.53 | 40.42 | 42.18 | 51.42 | 65.30 | 70.11 | 67.23 | 62.47 | 53.35 | 35.57 | 30.28 | f | 50.11 | a | ||||||||||
1969 | 30.96 | c | 33.00 | 30.79 | 51.02 | 59.45 | 60.22 | 72.69 | 74.89 | 65.18 | 40.16 | 39.07 | 31.81 | 49.10 | ||||||||||||
1970 | 29.40 | 36.95 | ----- | z | ----- | z | 58.50 | e | 64.83 | 72.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.39 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.92 | 29.37 | 34.73 | 44.94 | 54.43 | 63.83 | 70.69 | 69.02 | 60.63 | 49.45 | 37.42 | 28.90 | 47.70 | |||||||||||||
S.D. | 5.56 | 5.26 | 4.42 | 3.42 | 3.03 | 3.18 | 2.65 | 2.61 | 3.43 | 3.94 | 3.99 | 4.73 | 1.66 | |||||||||||||
SKEW | -0.88 | -0.37 | -0.28 | 0.07 | 0.45 | -0.23 | 0.32 | -0.17 | -0.48 | -0.48 | -0.44 | -0.53 | -0.43 | |||||||||||||
MAX | 36.02 | 39.98 | 42.37 | 52.09 | 62.66 | 70.23 | 76.31 | 74.89 | 65.98 | 58.06 | 47.33 | 36.94 | 50.80 | |||||||||||||
MIN | 11.37 | 16.31 | 24.50 | 37.27 | 48.81 | 56.62 | 65.14 | 62.63 | 52.52 | 40.16 | 25.22 | 18.06 | 44.06 | |||||||||||||
YRS | 52 | 56 | 55 | 57 | 57 | 59 | 58 | 57 | 55 | 53 | 49 | 52 | 28 |