YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | 26.65 | n | 25.00 | 28.32 | 31.93 | 37.35 | 46.63 | 55.33 | d | ----- | z | 55.89 | u | 37.23 | a | 32.13 | 26.83 | b | 35.64 | c | ||||||
1915 | 29.62 | e | 36.26 | a | ----- | z | ----- | z | ----- | z | 43.23 | d | 52.84 | 51.90 | 43.38 | a | 33.84 | 27.10 | 20.81 | 37.66 | c | |||||
1916 | 23.97 | 28.54 | a | 31.68 | 33.73 | 34.48 | 41.38 | a | 54.80 | a | 53.97 | a | 45.04 | c | 33.93 | b | 21.67 | 17.84 | 35.08 | |||||||
1917 | 19.07 | a | 21.42 | b | 20.68 | 29.41 | a | 33.71 | 39.44 | n | 56.04 | c | 49.50 | a | 48.07 | 34.34 | b | 26.43 | 21.93 | a | 32.78 | a | ||||
1918 | 18.43 | a | 25.82 | 28.27 | a | 30.77 | 32.61 | 49.60 | j | 54.65 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.76 | f | ||||
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 | 50.35 | 37.40 | 34.13 | 40.63 | i | |||
1936 | 32.35 | 33.38 | 39.65 | 47.87 | 54.45 | 62.30 | 65.23 | 63.52 | 57.97 | 49.74 | 38.63 | 33.19 | 48.19 | |||||||||||||
1937 | 23.03 | 32.36 | 36.81 | 43.97 | 53.71 | 59.63 | 63.77 | 65.87 | 60.90 | 52.81 | 41.66 | a | 35.06 | 47.46 | ||||||||||||
1938 | 32.45 | 34.54 | 35.87 | 41.37 | 50.03 | 60.70 | 61.42 | 62.87 | 60.70 | 50.42 | 33.07 | 34.61 | 46.50 | |||||||||||||
1939 | 30.00 | 23.11 | 37.16 | 44.27 | 51.90 | 58.80 | 63.81 | 61.58 | 57.29 | f | 46.42 | 41.50 | 36.10 | a | 44.97 | a | ||||||||||
1940 | 31.35 | 34.21 | 40.87 | 44.47 | 55.06 | 62.40 | 66.45 | 63.58 | 59.73 | 50.19 | 36.63 | 36.07 | a | 48.42 | ||||||||||||
1941 | 32.90 | 36.11 | 36.03 | 37.47 | 49.77 | 55.77 | 62.19 | 61.45 | 55.77 | 43.94 | 38.87 | 31.45 | 45.14 | |||||||||||||
1942 | 32.68 | 29.21 | 32.94 | 39.87 | 46.55 | 57.57 | 64.42 | 61.87 | 60.07 | 48.77 | 42.00 | 35.16 | 45.93 | |||||||||||||
1943 | 32.70 | a | 35.86 | 39.35 | 47.90 | 53.05 | j | 57.64 | h | 64.19 | 63.42 | 60.23 | 46.71 | 39.50 | 32.58 | 46.24 | b | |||||||||
1944 | 29.00 | 31.07 | 33.48 | 39.21 | a | 49.26 | 54.00 | 63.13 | 64.42 | 57.80 | 52.90 | 35.67 | 33.29 | 45.27 | ||||||||||||
1945 | 31.19 | 33.21 | 32.71 | 39.40 | 48.87 | 54.40 | 62.71 | 63.65 | 58.67 | 50.84 | 37.80 | 30.65 | 45.34 | |||||||||||||
1946 | 28.87 | 31.82 | 37.19 | 47.87 | 49.03 | 62.47 | 64.00 | 62.52 | 59.76 | a | 44.81 | 35.70 | 37.32 | 46.78 | ||||||||||||
1947 | 27.81 | 38.29 | 39.74 | 42.70 | 53.19 | 56.13 | 64.61 | 62.55 | 62.10 | 50.23 | 33.97 | 28.94 | 46.69 | |||||||||||||
1948 | 31.81 | 31.00 | 32.19 | 44.60 | 52.68 | 59.40 | 64.74 | 65.00 | 62.00 | 51.48 | 34.10 | 32.68 | f | 48.09 | a | |||||||||||
1949 | 23.61 | 30.04 | 34.55 | 45.87 | 50.16 | 58.63 | 63.97 | 63.45 | 62.53 | 45.65 | 45.07 | 29.97 | 46.12 | |||||||||||||
1950 | 31.42 | 38.57 | 38.20 | a | 47.23 | 49.61 | 59.70 | 63.71 | g | 64.03 | 56.40 | 57.45 | 43.53 | 38.87 | 47.73 | a | ||||||||||
1951 | 31.55 | 33.32 | 36.29 | 41.27 | 49.16 | 56.50 | 64.59 | b | 62.03 | 60.07 | 50.48 | 37.37 | 31.71 | 46.19 | ||||||||||||
1952 | 31.42 | 30.90 | 29.97 | 42.17 | 52.26 | 57.47 | 62.13 | 63.97 | 61.40 | 56.52 | 34.63 | 31.03 | 46.15 | |||||||||||||
1953 | 34.71 | 31.39 | 36.74 | 40.90 | 43.10 | 59.21 | a | 63.55 | 60.00 | 61.07 | 50.48 | 42.07 | 28.32 | 45.96 | ||||||||||||
1954 | 33.74 | 37.82 | 35.55 | 48.40 | 50.57 | a | 57.17 | 63.65 | 60.58 | 60.03 | a | 52.39 | 43.33 | 34.39 | 48.13 | |||||||||||
1955 | 28.19 | 27.61 | 35.45 | 39.29 | b | 47.84 | 56.43 | 60.81 | 61.84 | 60.27 | 55.32 | c | 37.96 | d | 37.42 | 45.70 | ||||||||||
1956 | 38.06 | 28.72 | 39.13 | 41.83 | 52.23 | 63.03 | 62.90 | 61.87 | 63.63 | 49.90 | 36.27 | 32.42 | 47.50 | |||||||||||||
1957 | 34.97 | 41.68 | 37.97 | 41.33 | 46.71 | 60.07 | 64.81 | 61.47 | a | 59.83 | 48.42 | 35.10 | 35.61 | 47.33 | ||||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | 35.16 | 31.79 | 37.61 | 47.63 | 48.42 | 63.87 | 64.57 | a | 59.68 | 57.70 | 48.32 | 37.47 | 34.06 | 47.19 | ||||||||||||
1960 | 26.57 | a | 27.48 | 40.47 | a | 45.26 | c | 49.48 | b | 62.90 | 63.68 | 61.06 | 59.87 | 46.45 | 39.27 | 30.13 | 46.05 | |||||||||
1961 | 32.32 | 32.86 | 35.10 | 42.18 | b | 49.75 | c | 62.10 | 61.87 | 61.42 | 55.21 | a | 47.27 | a | 37.47 | 32.44 | d | 45.83 | ||||||||
1962 | 29.60 | a | 35.18 | 31.87 | 47.93 | 47.48 | 57.03 | 63.23 | 65.84 | 59.87 | 50.03 | 43.31 | a | 35.55 | 47.24 | |||||||||||
1963 | 27.84 | 37.93 | 36.39 | 41.34 | a | 53.39 | 55.00 | 65.00 | a | 59.81 | 58.83 | 51.65 | 38.73 | 30.97 | 46.41 | |||||||||||
1964 | 25.94 | 26.00 | 31.16 | 39.10 | 47.84 | 54.70 | ----- | z | 58.16 | 56.70 | 53.45 | 34.33 | 32.26 | d | 41.79 | a | ||||||||||
1965 | 32.74 | 29.64 | 35.08 | e | 43.20 | 47.71 | 55.03 | 64.55 | 62.90 | 54.93 | 51.06 | 44.10 | 32.89 | c | 46.15 | |||||||||||
1966 | 28.97 | 29.00 | 39.58 | 45.87 | 52.61 | 58.30 | 63.84 | 63.06 | 60.60 | 48.03 | 41.10 | 30.29 | 46.77 | |||||||||||||
1967 | 29.58 | 34.29 | 37.35 | 35.32 | b | 47.90 | 53.87 | 61.55 | 62.06 | 59.23 | 51.67 | a | 42.43 | 26.58 | 45.15 | |||||||||||
1968 | 31.03 | 39.34 | 37.58 | 41.43 | 50.16 | 59.73 | 61.26 | 58.32 | 58.50 | 48.74 | 39.03 | 28.68 | 46.15 | |||||||||||||
1969 | 36.87 | 32.71 | 33.42 | 43.07 | 52.58 | 55.90 | 63.68 | 64.73 | a | 61.50 | 46.45 | 38.80 | 35.61 | 47.11 | ||||||||||||
1970 | 30.97 | 38.07 | 35.23 | 37.60 | 52.19 | 59.77 | 65.32 | 66.84 | 59.00 | 46.81 | 43.00 | 36.32 | 47.59 | |||||||||||||
1971 | 34.58 | 34.89 | 41.45 | 43.47 | 48.61 | 61.23 | 67.26 | 62.16 | 59.77 | 45.55 | 39.73 | 31.39 | 47.51 | |||||||||||||
1972 | 33.90 | 39.00 | a | 48.32 | 47.20 | 53.52 | 61.87 | 68.48 | 65.06 | 60.70 | 50.74 | 35.93 | 32.94 | 49.81 | ||||||||||||
1973 | 31.13 | 35.57 | 33.19 | 41.80 | 52.77 | 62.03 | 65.72 | b | 65.13 | a | 60.20 | 52.30 | a | 40.80 | 35.03 | 47.97 | ||||||||||
1974 | 32.16 | 32.96 | 41.33 | a | 44.40 | 52.35 | 65.33 | 63.30 | a | 62.19 | 57.79 | a | 50.17 | a | 39.57 | 30.13 | a | 47.64 | ||||||||
1975 | 31.52 | 32.32 | 34.00 | 36.27 | 48.03 | 57.73 | 62.81 | 64.39 | 59.93 | 47.58 | 34.40 | 29.87 | 44.90 | |||||||||||||
1976 | 28.71 | 33.66 | 31.61 | 37.37 | 47.39 | 56.37 | 59.06 | 59.13 | 53.28 | a | 42.97 | 34.90 | 30.48 | 42.91 | ||||||||||||
1977 | 28.61 | 34.64 | 31.45 | 41.67 | 42.35 | 58.20 | 61.26 | 60.52 | 56.20 | 49.45 | 37.67 | 35.32 | 44.78 | |||||||||||||
1978 | 32.20 | a | 34.57 | 41.32 | 41.67 | 46.10 | 55.47 | 59.13 | 59.80 | a | 54.93 | 50.26 | 37.07 | 26.84 | 44.95 | |||||||||||
1979 | 25.77 | 31.04 | 34.00 | 40.30 | 45.47 | a | 56.70 | 61.60 | a | 57.63 | d | 60.83 | a | ----- | z | ----- | z | ----- | z | 45.93 | c | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.24 | 32.59 | 35.62 | 41.68 | 48.49 | 57.69 | 62.56 | 61.67 | 58.29 | 48.39 | 37.62 | 31.82 | 46.21 | |||||||||||||
S.D. | 4.05 | 4.37 | 4.46 | 4.59 | 5.20 | 4.78 | 3.32 | 3.41 | 4.13 | 5.15 | 4.64 | 4.29 | 2.25 | |||||||||||||
SKEW | -0.94 | -0.36 | -0.38 | -0.72 | -1.63 | -1.54 | -1.29 | -1.62 | -2.10 | -1.35 | -1.15 | -1.20 | -3.21 | |||||||||||||
MAX | 38.06 | 41.68 | 48.32 | 48.40 | 55.06 | 65.33 | 68.48 | 66.84 | 63.63 | 57.45 | 45.07 | 38.87 | 49.81 | |||||||||||||
MIN | 18.43 | 21.42 | 20.68 | 29.41 | 32.61 | 41.38 | 52.84 | 49.50 | 43.38 | 33.84 | 21.67 | 17.84 | 35.08 | |||||||||||||
YRS | 47 | 48 | 47 | 47 | 46 | 45 | 46 | 46 | 45 | 47 | 47 | 46 | 38 |