YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.43 | 51.10 | 43.07 | 33.06 | 48.17 | h | ||||
1900 | 38.00 | 36.00 | 44.97 | 44.53 | 58.52 | 65.60 | 71.94 | 65.48 | h | 57.23 | 50.71 | 41.60 | 30.52 | 49.06 | a | |||||||||||
1901 | 28.19 | 34.32 | 42.48 | 47.67 | 59.48 | 61.33 | 68.52 | 67.97 | 59.17 | ----- | z | ----- | z | ----- | z | 52.13 | c | |||||||||
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 | 36.29 | 36.29 | k | |
1908 | 35.10 | 36.90 | 42.32 | 46.80 | 51.81 | 59.90 | 67.45 | 67.19 | 59.30 | 45.87 | 39.57 | 33.81 | 48.83 | |||||||||||||
1909 | 39.13 | 37.00 | 40.87 | 47.20 | 53.19 | 62.97 | 67.71 | 65.84 | 59.03 | 49.65 | 38.90 | ----- | z | 51.04 | a | |||||||||||
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | 44.84 | 48.73 | 54.68 | 63.30 | 70.32 | 68.90 | 63.90 | 48.58 | 36.53 | ----- | z | 55.53 | c | |||||||||
1912 | 30.35 | 34.97 | 40.70 | h | 43.86 | a | 46.65 | 56.47 | 59.48 | 65.14 | b | 55.29 | b | 48.55 | b | 38.83 | a | 28.68 | 46.21 | a | ||||||
1913 | 27.72 | b | 34.39 | 37.84 | 48.52 | c | 57.37 | a | 64.43 | 68.17 | a | 67.94 | 59.70 | 47.77 | a | 43.17 | a | 32.00 | a | 49.08 | ||||||
1914 | 36.92 | e | 44.19 | a | 44.04 | d | 50.60 | 57.06 | 63.00 | 60.74 | 76.87 | 74.17 | ----- | z | ----- | z | 33.00 | 54.06 | b | |||||||
1915 | 31.39 | 37.21 | 42.74 | 50.57 | 53.39 | 61.77 | 70.60 | p | 69.23 | a | 61.17 | 52.13 | 41.47 | 35.00 | 48.73 | a | ||||||||||
1916 | 35.61 | 39.66 | 46.39 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.63 | 28.60 | f | 40.07 | h | ||||
1917 | 28.16 | 35.36 | 35.68 | 45.45 | a | 53.37 | a | 64.07 | 71.90 | 67.10 | a | ----- | z | ----- | z | ----- | z | ----- | z | 50.14 | d | |||||
1918 | ----- | z | 42.81 | l | 45.16 | 50.17 | 54.10 | 69.17 | 68.74 | 66.87 | 64.28 | e | ----- | z | ----- | z | ----- | z | 59.78 | e | ||||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.36 | c | 33.36 | k |
1920 | 34.68 | 40.59 | 43.06 | 46.03 | 57.71 | 65.13 | 71.61 | 69.10 | ----- | z | ----- | z | ----- | z | ----- | z | 53.49 | d | ||||||||
1921 | ----- | z | ----- | z | ----- | z | ----- | z | 56.23 | 65.50 | 72.19 | 68.06 | 61.90 | 55.68 | 43.30 | 35.68 | 57.32 | d | ||||||||
1922 | 28.93 | a | 35.30 | a | 39.00 | 45.10 | a | 56.20 | a | 66.93 | 72.10 | 68.00 | ----- | z | 59.10 | 36.30 | ----- | z | 50.70 | b | ||||||
1923 | 34.60 | a | 30.93 | 38.81 | 47.37 | ----- | z | ----- | z | 73.29 | 67.32 | ----- | z | ----- | z | ----- | z | 32.32 | 46.38 | e | ||||||
1924 | 26.48 | 36.72 | 36.03 | 45.90 | 57.48 | 64.90 | 68.23 | 67.39 | 58.93 | 46.84 | 37.67 | 27.19 | 47.81 | |||||||||||||
1925 | 25.45 | 36.46 | 37.29 | 45.73 | d | 57.35 | 60.53 | 67.52 | 62.94 | 55.07 | 46.55 | 35.40 | 29.83 | a | 46.68 | |||||||||||
1926 | 27.13 | 36.04 | 40.45 | 48.07 | 52.13 | 61.30 | 65.32 | 64.35 | 57.63 | 48.65 | 41.17 | 29.16 | 47.62 | |||||||||||||
1927 | 31.94 | 34.64 | 31.97 | 43.57 | 49.03 | 58.80 | 64.23 | 61.50 | g | 56.63 | 50.86 | b | 43.70 | 31.71 | 45.19 | a | ||||||||||
1928 | 32.39 | 37.21 | e | 49.92 | r | 46.37 | 58.00 | d | 63.67 | l | 69.73 | e | 67.38 | e | ----- | z | 52.67 | d | 37.08 | e | 29.16 | f | 50.10 | d | ||
1929 | 31.27 | a | 33.58 | i | 42.10 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.69 | b | 33.83 | 33.87 | a | 37.66 | h | |
1930 | 28.96 | e | 36.78 | a | 39.79 | b | 51.37 | c | 49.90 | 65.86 | a | 68.05 | i | 66.00 | k | 59.67 | 46.16 | 37.27 | 26.61 | 44.24 | b | |||||
1931 | 29.45 | 39.25 | 41.55 | 51.07 | 56.42 | 63.76 | e | 71.00 | g | 69.57 | h | 61.40 | e | 52.00 | j | 37.42 | d | 28.39 | 45.41 | c | ||||||
1932 | 26.87 | 35.59 | 40.43 | a | 48.30 | 54.23 | 61.67 | c | 69.90 | a | 67.94 | 61.00 | 48.16 | 39.37 | 26.42 | 48.32 | ||||||||||
1933 | 26.61 | 26.78 | a | 39.13 | a | 44.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.83 | ----- | z | 33.19 | g | |||
1934 | 26.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.35 | k | |
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 | 67.52 | 64.55 | 63.40 | 50.84 | 34.07 | 31.94 | 52.05 | f | ||||||
1957 | 36.23 | 42.96 | 44.39 | 47.43 | 52.74 | 65.00 | 70.13 | 67.90 | 61.37 | 51.16 | 37.27 | 35.10 | 50.97 | |||||||||||||
1958 | 33.32 | 40.89 | 40.32 | 47.07 | 58.42 | 65.63 | 69.26 | 70.35 | 61.67 | 53.90 | 38.67 | 36.10 | 51.30 | |||||||||||||
1959 | 33.23 | 35.96 | 42.90 | 51.53 | 56.42 | 66.17 | 70.32 | 64.90 | ----- | z | 48.44 | m | 34.13 | 30.39 | 48.60 | b | ||||||||||
1960 | 24.10 | 29.72 | 39.03 | 44.27 | 49.81 | 60.93 | 63.77 | 60.57 | q | 54.65 | d | 40.73 | a | 36.50 | t | 18.61 | m | 45.22 | c | |||||||
1961 | 19.23 | e | 27.92 | d | 31.13 | 38.81 | i | 45.89 | c | 56.62 | a | 59.47 | a | 54.54 | c | 44.64 | b | 35.21 | c | 18.95 | h | 12.85 | d | 38.75 | b | |
1962 | 15.68 | 23.75 | d | 24.41 | b | 40.17 | 40.69 | b | 49.14 | a | 54.74 | 55.04 | e | 48.43 | b | 38.39 | c | 29.80 | 20.08 | f | 38.20 | a | ||||
1963 | 13.90 | b | 26.48 | c | 28.20 | k | 40.09 | h | 54.34 | b | 62.93 | b | 72.84 | 69.17 | b | 62.57 | b | 56.03 | b | 41.67 | 29.28 | b | 48.92 | b | ||
1964 | 29.93 | a | 29.59 | b | 35.94 | 45.97 | 53.17 | b | 61.00 | 69.60 | a | 65.03 | b | 58.32 | b | 52.46 | c | 32.60 | t | 31.39 | 48.40 | a | ||||
1965 | 31.13 | a | 33.43 | 35.90 | 43.29 | b | 48.83 | a | 56.38 | a | 65.54 | g | 63.72 | b | 52.97 | ----- | z | ----- | z | 29.66 | b | 43.92 | c | |||
1966 | 24.74 | 26.61 | 38.93 | b | 44.48 | a | 53.74 | 58.75 | b | 64.10 | a | 64.12 | f | 57.00 | b | 43.48 | 34.20 | e | 26.40 | a | 42.95 | a | ||||
1967 | 24.50 | a | 29.67 | d | 37.52 | 36.93 | a | 47.39 | 53.50 | d | 63.33 | a | 60.24 | b | 52.44 | e | 43.26 | 34.93 | c | 18.03 | 41.81 | |||||
1968 | 19.70 | a | 31.59 | 33.52 | 39.79 | b | 57.26 | 65.63 | 69.62 | b | 64.43 | c | 60.21 | b | 49.46 | e | 45.10 | a | 26.79 | c | 46.92 | |||||
1969 | 36.03 | a | 34.00 | 36.63 | a | 47.41 | a | 55.88 | f | 61.17 | a | 69.08 | f | 66.93 | a | 59.70 | 43.63 | d | 32.20 | o | 47.00 | r | 48.19 | d | ||
1970 | 38.61 | h | 41.00 | 41.03 | a | 42.85 | c | 51.92 | e | 61.73 | 64.19 | 67.14 | b | 55.50 | b | 46.07 | b | 39.66 | a | 32.26 | 49.40 | a | ||||
1971 | 28.23 | 34.57 | 38.27 | a | 44.60 | 49.90 | 61.21 | a | 68.32 | 64.87 | a | 55.33 | 43.33 | a | 36.13 | 30.17 | a | 46.24 | ||||||||
1972 | 28.45 | 35.57 | a | 45.87 | 47.43 | 53.39 | 61.83 | 69.07 | a | 63.73 | a | 57.77 | 48.29 | 35.00 | 27.39 | 47.82 | ||||||||||
1973 | 26.06 | 34.00 | a | 36.13 | 42.73 | 54.58 | 60.63 | 65.13 | 64.00 | 55.03 | 46.84 | 37.93 | 30.39 | 46.12 | ||||||||||||
1974 | 29.32 | 30.82 | 42.55 | 43.10 | 54.68 | 64.50 | 64.06 | 63.13 | 58.73 | 48.35 | 33.30 | 25.10 | a | 46.47 | ||||||||||||
1975 | 24.71 | ----- | z | 35.03 | 37.37 | 47.32 | 55.93 | 63.06 | 60.45 | 55.90 | 42.94 | 31.33 | 26.23 | 43.66 | a | |||||||||||
1976 | 23.84 | 32.79 | 33.10 | 39.33 | 50.65 | 55.34 | a | 61.45 | 57.43 | a | 53.43 | 40.62 | b | 32.53 | 21.81 | 41.86 | ||||||||||
1977 | 22.81 | 28.93 | 29.55 | 41.43 | 44.32 | 58.17 | 62.13 | 60.87 | 55.00 | 44.94 | 32.67 | 31.16 | 42.66 | |||||||||||||
1978 | 28.55 | 29.29 | 36.65 | 39.23 | 44.13 | 56.80 | 59.97 | 57.74 | 50.47 | 45.03 | 32.00 | 20.03 | 41.66 | |||||||||||||
1979 | 20.10 | 23.25 | 31.83 | a | 38.70 | 45.74 | 53.47 | 59.84 | 55.39 | 54.97 | 44.48 | 26.27 | 23.00 | 39.75 | ||||||||||||
1980 | 26.90 | 29.52 | 29.39 | 37.60 | 42.28 | b | 52.97 | 59.58 | 57.40 | a | 50.43 | 39.00 | c | 29.71 | b | 26.37 | a | 40.10 | ||||||||
1981 | 36.22 | d | 38.43 | 43.30 | a | 52.53 | 57.61 | 67.43 | 71.19 | 69.31 | b | 63.37 | 49.70 | a | 44.69 | a | 37.10 | 52.57 | ||||||||
1982 | 32.97 | 36.74 | a | 43.23 | 48.67 | 56.13 | 63.40 | 69.29 | 68.55 | b | 62.47 | 47.10 | 40.13 | 34.03 | a | 50.23 | ||||||||||
1983 | 34.13 | 39.78 | a | 43.19 | 44.70 | 55.58 | 64.10 | a | 69.48 | 68.55 | b | 65.77 | 53.80 | a | 43.34 | a | 38.24 | b | 51.72 | |||||||
1984 | 33.13 | 35.10 | 42.94 | 44.14 | a | 62.83 | b | 65.40 | 70.29 | 69.13 | 64.39 | b | 47.55 | 41.04 | b | 34.47 | a | 50.87 | ||||||||
1985 | 31.35 | 33.57 | 43.52 | 52.03 | a | 58.80 | a | 65.70 | 70.77 | a | 69.48 | 56.47 | 49.61 | 40.34 | a | 32.19 | 50.32 | |||||||||
1986 | 37.20 | a | 41.25 | 45.10 | 48.63 | 57.60 | a | 66.03 | a | 68.60 | a | 69.27 | a | 57.62 | a | 48.36 | c | 41.54 | f | 34.74 | d | 52.22 | a | |||
1987 | 34.58 | e | 37.46 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.02 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.30 | 34.44 | 39.14 | 45.51 | 53.15 | 61.65 | 66.94 | 65.39 | 58.39 | 47.77 | 37.37 | 29.99 | 46.99 | |||||||||||||
S.D. | 5.58 | 4.76 | 4.89 | 3.98 | 4.87 | 4.29 | 4.39 | 4.52 | 5.03 | 4.76 | 4.50 | 5.10 | 3.83 | |||||||||||||
SKEW | -0.56 | -0.36 | -0.79 | -0.37 | -0.66 | -0.81 | -0.74 | -0.69 | 0.08 | -0.25 | -0.34 | -1.10 | -0.51 | |||||||||||||
MAX | 39.13 | 44.19 | 46.39 | 52.53 | 62.83 | 69.17 | 73.29 | 76.87 | 74.17 | 59.10 | 45.10 | 38.24 | 52.57 | |||||||||||||
MIN | 13.90 | 23.25 | 24.41 | 36.93 | 40.69 | 49.14 | 54.74 | 54.54 | 44.64 | 35.21 | 26.27 | 12.85 | 39.75 | |||||||||||||
YRS | 54 | 52 | 51 | 51 | 51 | 51 | 49 | 48 | 49 | 47 | 46 | 47 | 24 |