YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | 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 | 32.00 | i | 40.81 | 49.53 | 55.19 | 64.90 | a | 66.87 | 67.43 | b | 60.58 | 50.40 | 42.91 | b | 25.47 | b | 52.41 | b | ||||||
1933 | 30.08 | 22.26 | a | 39.97 | 47.50 | 50.69 | 61.37 | 68.50 | 68.29 | 55.08 | 50.98 | 39.64 | b | 39.56 | o | 48.58 | a | |||||||||
1934 | ----- | z | 40.82 | 45.13 | 54.32 | 59.79 | 62.45 | 69.08 | a | 68.84 | 55.48 | 53.06 | 42.40 | 32.73 | 53.10 | a | ||||||||||
1935 | 30.56 | 35.80 | ----- | z | ----- | z | ----- | z | 60.74 | a | 68.12 | a | 66.22 | d | 63.88 | 50.73 | r | 31.90 | 32.90 | b | 48.77 | d | ||||
1936 | 34.85 | 15.43 | 40.29 | ----- | z | 63.45 | 62.83 | 69.97 | 69.03 | ----- | z | ----- | z | ----- | z | ----- | z | 50.84 | e | |||||||
1937 | 10.72 | a | 29.26 | a | 44.22 | a | ----- | z | ----- | z | 61.32 | 73.39 | 65.53 | 62.77 | 53.71 | 43.87 | 33.19 | 47.80 | b | |||||||
1938 | 32.05 | 33.82 | 39.37 | ----- | z | 54.11 | 65.63 | 72.55 | 65.73 | 65.67 | ----- | z | 36.79 | a | 30.11 | 49.58 | b | |||||||||
1939 | 33.39 | 28.95 | 41.85 | ----- | z | 58.05 | u | 59.60 | 69.84 | 69.45 | 60.33 | 46.55 | 39.58 | 36.42 | 48.60 | b | ||||||||||
1940 | 30.02 | 35.98 | 43.77 | 49.30 | 58.50 | a | 65.50 | 69.52 | 67.00 | d | 63.60 | a | 51.42 | a | 31.78 | a | 33.35 | g | 51.49 | a | ||||||
1941 | 30.56 | 38.77 | 45.69 | 51.62 | 55.50 | c | 61.97 | 73.44 | 68.05 | 53.87 | 46.10 | a | 39.57 | a | 33.05 | 49.85 | ||||||||||
1942 | 23.48 | 32.43 | 40.00 | 49.67 | 53.50 | 59.65 | 69.95 | 69.73 | 61.00 | 50.61 | 35.43 | 30.35 | 47.98 | |||||||||||||
1943 | 22.08 | a | 32.50 | 36.82 | 50.37 | d | 51.21 | 58.69 | a | 69.15 | 65.76 | 62.52 | a | 50.71 | 37.79 | a | 29.24 | 47.24 | ||||||||
1944 | 30.08 | a | 31.47 | 37.69 | 48.74 | c | 56.58 | a | 62.97 | a | 70.05 | 66.18 | a | 62.60 | a | 55.21 | 35.87 | 27.63 | a | 48.76 | ||||||
1945 | 33.69 | 36.21 | 38.62 | f | 44.80 | c | 56.73 | g | 61.46 | e | 70.90 | e | 69.81 | g | 56.46 | f | 51.45 | 36.67 | c | 30.53 | b | 45.72 | d | |||
1946 | 30.40 | a | 34.77 | 41.19 | 48.38 | e | 60.76 | l | 60.78 | e | 69.14 | b | 70.00 | a | 60.04 | d | 44.08 | 35.03 | a | 33.04 | c | 47.90 | a | |||
1947 | 24.24 | d | 36.93 | a | 43.77 | 48.24 | a | 60.52 | b | 60.78 | a | 69.84 | b | 66.60 | b | 60.73 | 50.56 | 36.96 | c | 33.33 | a | 49.38 | ||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.68 | 66.35 | 66.10 | 58.17 | 47.98 | 36.18 | 22.18 | 51.95 | e | |||||||
1949 | 9.26 | 27.04 | 41.13 | 49.65 | 59.35 | 62.18 | 66.35 | n | 67.53 | 61.17 | 43.42 | 42.43 | 31.44 | g | 46.32 | b | ||||||||||
1950 | 8.93 | a | 28.27 | 37.02 | 44.62 | 52.89 | 61.45 | a | 69.61 | 69.11 | 61.38 | 47.55 | 37.12 | 35.05 | a | 46.08 | ||||||||||
1951 | 28.18 | 34.20 | a | 37.58 | 48.36 | b | 55.66 | 62.18 | 70.76 | 66.97 | 60.87 | 46.19 | 36.17 | 23.67 | a | 47.57 | ||||||||||
1952 | 22.13 | 31.86 | 37.77 | 50.62 | 56.47 | 62.93 | 70.13 | 67.45 | 62.93 | 54.27 | 32.90 | 31.11 | 48.38 | |||||||||||||
1953 | 38.03 | 35.80 | 40.73 | 46.05 | 52.74 | 56.02 | ----- | z | ----- | z | ----- | z | 50.50 | 40.83 | 32.68 | 43.71 | c | |||||||||
1954 | 24.95 | b | 33.73 | 36.27 | a | 43.92 | 54.97 | a | 55.92 | ----- | z | 64.29 | ----- | z | ----- | z | ----- | z | 32.19 | 43.28 | d | |||||
1955 | 27.89 | 29.88 | 32.47 | a | 42.28 | 50.80 | a | 63.75 | 66.75 | a | 67.08 | 58.55 | 48.02 | 28.33 | 27.76 | 45.30 | ||||||||||
1956 | 29.98 | 22.73 | a | 38.31 | 50.52 | 58.81 | 60.62 | 70.95 | 67.52 | 58.57 | 46.12 | a | 33.80 | 31.13 | 47.42 | |||||||||||
1957 | 16.02 | 28.86 | 39.33 | a | 47.88 | 59.66 | 62.58 | 66.87 | 63.90 | 60.60 | ----- | z | 32.84 | n | 35.58 | a | 48.13 | b | ||||||||
1958 | 33.35 | 43.30 | m | 39.60 | 46.00 | f | 62.29 | 67.13 | 72.82 | 71.53 | 58.82 | 50.73 | 37.50 | b | 33.61 | 52.74 | b | |||||||||
1959 | 31.19 | 33.38 | 40.55 | a | 48.50 | 51.74 | 62.07 | 69.58 | 61.35 | g | 56.88 | 47.42 | 33.75 | 31.82 | 46.08 | a | ||||||||||
1960 | 23.15 | 33.14 | 39.90 | 47.17 | 51.65 | 62.20 | 72.93 | a | 64.94 | d | 59.78 | c | 49.68 | 37.24 | a | 28.47 | 47.52 | |||||||||
1961 | 30.34 | 38.64 | 41.63 | 47.30 | 56.66 | 68.13 | 71.84 | 73.50 | 55.81 | a | 45.89 | 33.17 | 28.03 | a | 49.25 | |||||||||||
1962 | 26.06 | 35.11 | 38.40 | 49.72 | 52.10 | a | 60.88 | a | 68.23 | a | 65.85 | 61.67 | 49.29 | 39.38 | b | 34.89 | 48.46 | |||||||||
1963 | 22.33 | a | 39.30 | 42.40 | 46.92 | 55.94 | 62.72 | ----- | z | 68.95 | 66.10 | 51.72 | a | 39.62 | a | 28.87 | 47.72 | a | ||||||||
1964 | 31.28 | b | 33.48 | ----- | z | 45.32 | 52.42 | a | 61.57 | 68.52 | a | 64.10 | a | 55.00 | 48.21 | 35.18 | 27.44 | 47.50 | a | |||||||
1965 | 30.92 | ----- | z | 38.71 | 50.42 | 52.84 | 62.67 | c | 69.11 | 67.94 | 54.15 | 51.87 | 41.18 | 30.92 | a | 50.07 | a | |||||||||
1966 | 29.92 | 35.84 | 40.98 | 47.15 | 56.37 | 59.07 | 66.42 | 67.47 | 62.60 | 47.29 | 39.50 | 34.02 | 48.89 | |||||||||||||
1967 | 33.85 | 37.11 | 38.53 | 43.68 | 52.52 | a | 64.28 | 69.29 | 71.66 | 64.98 | 47.87 | 36.80 | 28.39 | 49.08 | ||||||||||||
1968 | 28.85 | 38.24 | 44.02 | 44.60 | 55.23 | 61.90 | 70.90 | 64.73 | 58.92 | 47.71 | 36.95 | 27.35 | 48.28 | |||||||||||||
1969 | 15.47 | a | 28.12 | 38.63 | 48.17 | 57.81 | 65.69 | a | 66.63 | 64.37 | 59.33 | 44.10 | 37.30 | 30.30 | a | 46.33 | ||||||||||
1970 | 27.35 | 37.14 | 39.44 | 42.85 | 54.76 | 66.82 | 69.45 | 68.39 | c | 53.27 | 45.61 | 36.18 | 28.84 | 47.51 | ||||||||||||
1971 | 31.24 | 34.43 | 35.47 | 45.47 | 56.48 | 57.73 | 69.71 | 70.52 | a | 53.17 | 43.65 | 35.18 | 25.18 | 46.52 | ||||||||||||
1972 | 24.85 | 30.67 | 41.76 | 43.38 | 55.61 | 62.03 | 66.82 | 68.94 | 53.36 | a | 47.61 | 38.27 | ----- | z | 48.48 | a | ||||||||||
1973 | 26.53 | 35.12 | 41.56 | 46.30 | 56.31 | 61.63 | 68.53 | a | 65.61 | 58.23 | 45.35 | 33.45 | ----- | z | 48.97 | a | ||||||||||
1974 | 23.35 | 36.41 | 39.50 | 47.00 | 51.73 | 64.88 | 68.05 | c | ----- | z | 60.00 | 49.03 | p | ----- | z | 32.73 | 47.07 | c | ||||||||
1975 | 23.05 | b | ----- | z | ----- | z | 45.17 | x | 52.76 | 59.08 | 71.50 | 64.24 | 60.77 | 47.06 | 34.84 | b | 30.31 | e | 49.29 | c | ||||||
1976 | 29.68 | 32.24 | b | 35.37 | a | 45.48 | a | 54.16 | 57.27 | 66.74 | 63.56 | 61.05 | 45.97 | a | 35.37 | 27.98 | 46.24 | |||||||||
1977 | 21.21 | 34.45 | 36.63 | 48.73 | 49.87 | 64.78 | 65.81 | 70.37 | 54.02 | 44.60 | 35.16 | a | 30.03 | 46.30 | ||||||||||||
1978 | 29.58 | 36.00 | 42.87 | 45.95 | 51.97 | 63.03 | a | 67.92 | 65.13 | 55.82 | 46.58 | 30.10 | 20.63 | 46.30 | ||||||||||||
1979 | 10.56 | 29.41 | 41.08 | 44.93 | 55.85 | 61.82 | 69.00 | 67.55 | 60.10 | 49.23 | 31.28 | 32.79 | 46.13 | |||||||||||||
1980 | 20.35 | 33.16 | 36.63 | 49.95 | 54.18 | 57.07 | 65.27 | 62.00 | 57.53 | 47.45 | 36.22 | a | 33.06 | 46.07 | ||||||||||||
1981 | 34.18 | 34.59 | 42.62 | b | 45.28 | 53.34 | 56.57 | 65.42 | 71.05 | 60.12 | a | 45.00 | ----- | z | ----- | z | 50.82 | b | ||||||||
1982 | ----- | z | 36.42 | j | 46.09 | h | 46.88 | q | 62.77 | k | 69.38 | j | 67.28 | a | 75.11 | ----- | z | ----- | z | ----- | z | ----- | z | 71.20 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.39 | 32.97 | 39.94 | 47.40 | 55.11 | 61.92 | 69.14 | 67.47 | 59.39 | 48.38 | 36.61 | 30.35 | 47.53 | |||||||||||||
S.D. | 6.99 | 4.81 | 2.79 | 2.62 | 3.18 | 2.86 | 2.11 | 2.68 | 3.43 | 2.97 | 3.40 | 3.51 | 1.29 | |||||||||||||
SKEW | -1.02 | -1.38 | -0.16 | 0.14 | 0.63 | -0.10 | 0.19 | 0.54 | -0.21 | 0.35 | -0.03 | -0.73 | 0.10 | |||||||||||||
MAX | 38.03 | 40.82 | 45.69 | 54.32 | 63.45 | 68.13 | 73.44 | 75.11 | 66.10 | 55.21 | 43.87 | 36.42 | 49.85 | |||||||||||||
MIN | 8.93 | 15.43 | 32.47 | 42.28 | 49.87 | 55.92 | 65.27 | 62.00 | 53.17 | 43.42 | 28.33 | 20.63 | 45.30 | |||||||||||||
YRS | 47 | 45 | 45 | 42 | 44 | 50 | 47 | 47 | 46 | 44 | 45 | 43 | 24 |