YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 50.25 | c | 58.90 | 59.94 | 69.17 | 77.48 | 75.17 | b | 70.14 | a | 63.26 | 51.28 | a | 43.00 | 61.86 | b | ||||||
1916 | 30.82 | i | 43.62 | c | 62.10 | 55.96 | d | 65.82 | c | 76.97 | a | 87.97 | b | 78.67 | a | 73.41 | a | 56.43 | a | 47.71 | p | 29.38 | e | 63.03 | b | |
1917 | 35.22 | h | ----- | z | ----- | z | 50.85 | d | 56.67 | d | 75.71 | b | 85.47 | a | 80.17 | b | 76.80 | 62.19 | e | ----- | z | ----- | z | 69.69 | e | |
1918 | ----- | z | ----- | z | ----- | z | 46.26 | c | 66.90 | a | 80.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.46 | i | |
1919 | 43.03 | a | 36.89 | a | 43.83 | a | 55.80 | 69.10 | 79.83 | 84.87 | 83.74 | 73.03 | ----- | z | ----- | z | ----- | z | 63.35 | c | ||||||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.10 | 78.43 | a | 72.90 | 61.97 | a | 42.00 | b | 37.90 | b | 62.38 | f | ||
1921 | 38.47 | a | 40.38 | b | 51.86 | b | 52.23 | 64.64 | c | 77.10 | 85.59 | b | 83.35 | 78.69 | a | ----- | z | ----- | z | ----- | z | 63.59 | c | |||
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 | ----- | 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 | 38.66 | b | 36.93 | b | 44.31 | b | 61.83 | 69.06 | 75.90 | 85.87 | 86.03 | 82.23 | 64.45 | 44.67 | 37.26 | 60.60 | ||||||||||
1949 | 23.35 | 35.18 | 43.03 | 58.13 | 64.39 | 72.03 | 83.97 | 85.74 | 76.17 | 57.81 | 60.40 | 41.39 | 58.47 | |||||||||||||
1950 | 38.90 | 47.54 | 44.90 | 56.97 | 60.29 | 76.60 | 79.61 | 82.87 | 69.00 | 68.03 | a | 46.43 | b | 45.84 | 59.75 | |||||||||||
1951 | 36.40 | a | 42.36 | 43.35 | 53.50 | 64.42 | 68.07 | 83.73 | a | 82.23 | 72.27 | 57.28 | b | 44.97 | 37.32 | 57.16 | ||||||||||
1952 | 39.52 | 42.07 | 37.86 | c | 57.48 | a | 65.58 | 82.40 | 86.13 | 87.03 | a | 77.90 | a | 68.00 | p | 41.97 | 39.03 | a | 59.72 | a | ||||||
1953 | 48.77 | 40.11 | a | 54.26 | 51.70 | 64.16 | 80.67 | 88.68 | 83.84 | 83.17 | 69.48 | 52.57 | 40.48 | 63.16 | ||||||||||||
1954 | 47.10 | a | 57.11 | 41.13 | 63.60 | 64.42 | 79.67 | 90.74 | 85.29 | 80.43 | 63.35 | 56.03 | 43.61 | 64.37 | ||||||||||||
1955 | 34.71 | 33.54 | 42.19 | 57.38 | a | 68.52 | 70.87 | 86.68 | 83.80 | a | 75.63 | 67.17 | b | 41.93 | 41.26 | 58.64 | ||||||||||
1956 | 42.19 | 33.41 | 46.03 | 53.87 | 67.42 | 82.27 | 84.90 | 82.73 | a | 81.87 | 68.00 | 43.50 | 44.68 | 60.91 | ||||||||||||
1957 | 31.94 | 48.11 | a | 46.16 | 46.77 | 60.26 | 74.30 | 85.26 | 83.13 | 73.17 | 60.03 | 42.60 | 47.84 | 58.30 | ||||||||||||
1958 | 44.90 | 47.96 | 36.29 | 51.33 | 72.16 | 78.00 | 80.68 | 88.35 | 78.43 | 66.13 | 50.70 | 40.52 | 61.29 | |||||||||||||
1959 | 39.13 | 36.00 | 43.29 | 52.07 | 64.42 | 83.13 | 87.19 | 89.17 | a | 72.07 | 58.10 | 48.93 | a | 47.84 | 60.11 | |||||||||||
1960 | 37.42 | 32.72 | 46.03 | 61.23 | 68.55 | 80.40 | 87.94 | 86.84 | 78.10 | 64.13 | 48.70 | 39.45 | 60.96 | |||||||||||||
1961 | 42.68 | 45.43 | 42.68 | 52.10 | 64.13 | a | 76.67 | 85.71 | 83.42 | 68.20 | 60.03 | 44.37 | 36.90 | 58.53 | ||||||||||||
1962 | 32.97 | 40.93 | 42.94 | 60.87 | 69.71 | 73.30 | 80.84 | 85.97 | 76.60 | 67.19 | 54.10 | a | 44.77 | 60.85 | ||||||||||||
1963 | 32.45 | b | 46.93 | 45.81 | 58.76 | a | 73.29 | 80.53 | 89.26 | 82.74 | 76.20 | 70.16 | 52.57 | 39.45 | 62.35 | |||||||||||
1964 | 40.03 | 34.62 | 38.35 | 52.63 | 67.35 | 74.33 | 90.19 | 82.77 | a | 74.30 | 66.65 | 47.50 | 40.48 | 59.10 | ||||||||||||
1965 | 43.65 | 38.32 | 33.39 | 58.40 | 66.65 | 71.60 | 84.03 | 81.23 | 63.03 | 66.77 | 55.07 | 45.26 | 58.95 | |||||||||||||
1966 | 38.74 | 39.18 | 53.57 | a | 55.40 | 73.06 | 77.93 | a | 88.90 | 81.42 | 73.10 | 61.97 | 50.80 | 40.81 | 61.24 | |||||||||||
1967 | 42.26 | 43.18 | 53.10 | 58.73 | 57.30 | k | 70.57 | 81.48 | 82.45 | 73.97 | 65.23 | 49.17 | 35.16 | 59.57 | a | |||||||||||
1968 | 41.13 | 43.03 | 51.26 | 52.70 | 60.94 | 78.00 | c | 83.16 | 79.84 | 74.40 | 65.86 | b | 44.33 | 39.06 | 59.48 | |||||||||||
1969 | 42.74 | 42.29 | 39.68 | 61.60 | 69.55 | 68.77 | 86.26 | 86.68 | 77.40 | 57.09 | t | 48.87 | 42.61 | 60.59 | a | |||||||||||
1970 | 39.68 | 48.75 | 40.10 | 50.40 | 68.61 | 74.69 | a | 84.60 | a | 86.29 | 74.10 | a | 55.81 | 46.83 | 41.48 | 59.28 | ||||||||||
1971 | 40.42 | 37.43 | 44.81 | 55.33 | 61.94 | 78.73 | 78.07 | d | 81.97 | 65.90 | a | 59.77 | a | 50.53 | 40.39 | 57.94 | ||||||||||
1972 | 39.26 | 47.69 | 57.39 | 58.57 | 67.03 | 78.43 | 82.65 | 81.45 | 73.77 | 62.45 | 40.30 | 35.03 | 60.33 | |||||||||||||
1973 | 36.90 | 43.32 | 43.16 | 49.53 | 65.94 | 79.33 | 82.55 | 84.81 | 69.57 | 66.81 | 46.77 | 41.26 | 59.16 | |||||||||||||
1974 | 35.39 | ----- | z | 52.61 | 57.30 | 72.35 | 79.50 | 86.97 | 81.68 | 74.31 | a | 65.16 | 50.40 | 41.61 | 63.39 | a | ||||||||||
1975 | 39.29 | 41.75 | 46.67 | a | 53.43 | 64.68 | 74.73 | 85.23 | 85.20 | a | 73.27 | 66.03 | 49.38 | a | ----- | z | 61.79 | a | ||||||||
1976 | 43.69 | e | 47.72 | 47.65 | 59.03 | 68.10 | 79.27 | 87.48 | 82.68 | 76.17 | 62.35 | 48.17 | 45.61 | 62.33 | ||||||||||||
1977 | 37.26 | 47.93 | 49.43 | a | 60.83 | 69.77 | 82.90 | 88.94 | 79.90 | 80.97 | 67.03 | 49.57 | 44.10 | 63.22 | ||||||||||||
1978 | 37.43 | a | 36.36 | 53.23 | 59.13 | 64.55 | 78.37 | 86.50 | a | 82.32 | 79.80 | 67.10 | 46.50 | 34.70 | a | 60.50 | ||||||||||
1979 | 28.29 | 43.04 | 48.29 | 59.90 | 63.81 | 77.27 | 86.48 | 81.58 | 79.60 | 65.97 | 40.20 | 43.81 | 59.85 | |||||||||||||
1980 | 33.39 | 41.83 | 42.42 | 56.50 | 63.42 | 84.67 | 89.26 | 85.06 | 78.23 | 63.52 | 49.77 | 51.48 | 61.63 | |||||||||||||
1981 | 47.52 | 47.39 | 48.87 | 66.80 | 62.73 | a | 79.63 | 84.87 | 80.45 | 74.14 | a | 59.69 | b | 53.20 | 40.52 | 62.15 | ||||||||||
1982 | 36.69 | b | 41.76 | c | 47.14 | b | 57.42 | d | 61.75 | c | 67.30 | 82.29 | c | 83.58 | 73.59 | c | 60.10 | b | 46.76 | a | 41.30 | a | 58.31 | |||
1983 | 46.48 | 47.74 | a | 43.93 | b | 46.63 | 61.18 | c | 68.33 | 82.03 | 85.10 | 77.97 | 63.48 | 45.50 | 28.43 | a | 58.07 | |||||||||
1984 | 36.13 | 40.38 | 44.13 | a | 47.63 | 68.42 | 76.20 | 85.87 | 80.74 | 72.80 | 57.35 | 53.64 | b | 41.94 | 58.77 | |||||||||||
1985 | 33.71 | 35.21 | 52.19 | 59.90 | a | 69.87 | 77.10 | 83.04 | c | 84.52 | 68.87 | 59.03 | 37.59 | a | 35.87 | a | 58.07 | |||||||||
1986 | 47.39 | 43.57 | 56.35 | 56.10 | 64.84 | 80.67 | 85.71 | 84.90 | 71.48 | a | 58.23 | 46.33 | 41.55 | 61.43 | ||||||||||||
1987 | 40.26 | 42.68 | 44.35 | 61.70 | 66.71 | 78.63 | 85.58 | 80.61 | 73.83 | 63.16 | 49.60 | 38.06 | 60.43 | |||||||||||||
1988 | 31.90 | a | 39.48 | 45.52 | 58.23 | 68.13 | 81.87 | 86.23 | 86.10 | 73.67 | 65.16 | 49.60 | 39.94 | 60.48 | ||||||||||||
1989 | 44.45 | 30.26 | a | 50.39 | 58.83 | 69.26 | 72.90 | 88.29 | 82.71 | 72.17 | 62.42 | 51.87 | 37.68 | 60.10 | ||||||||||||
1990 | 41.77 | 41.68 | 42.81 | 56.20 | 61.84 | 79.87 | 78.90 | 81.52 | 78.69 | a | 61.81 | 53.17 | 35.29 | 59.46 | ||||||||||||
1991 | 36.65 | 49.46 | 49.39 | 55.10 | 66.19 | 75.86 | a | 82.71 | 83.19 | 74.50 | 64.80 | a | 42.30 | 44.61 | 60.40 | |||||||||||
1992 | 40.52 | 49.17 | 51.23 | 62.21 | a | 72.13 | 73.67 | 79.39 | 80.55 | 77.70 | 65.94 | 41.72 | a | 35.65 | 60.82 | |||||||||||
1993 | 34.74 | 36.07 | 49.13 | 54.60 | 66.10 | 72.00 | 81.26 | 80.35 | 68.90 | 58.00 | 41.57 | 40.42 | 56.93 | |||||||||||||
1994 | 41.94 | 38.64 | 51.94 | 56.67 | 72.10 | 83.90 | 84.71 | 86.19 | 77.87 | 59.81 | 46.27 | 46.97 | 62.25 | |||||||||||||
1995 | 40.19 | 46.71 | 49.13 | 52.03 | 54.52 | 71.00 | 82.16 | 88.10 | 71.70 | 60.16 | 51.27 | 44.65 | 59.30 | |||||||||||||
1996 | 36.94 | 44.90 | 45.23 | 57.57 | 63.97 | 78.77 | 85.42 | 83.06 | 71.57 | 62.87 | 50.00 | 42.97 | 60.27 | |||||||||||||
1997 | 36.06 | 39.32 | 53.03 | 49.30 | 65.90 | 75.57 | 84.32 | 78.00 | 72.67 | 61.13 | 44.63 | 38.77 | 58.23 | |||||||||||||
1998 | 45.16 | 43.29 | 46.97 | 54.37 | 69.45 | b | 72.29 | b | 86.06 | 86.13 | 81.63 | 59.07 | c | 50.63 | 39.94 | 61.25 | ||||||||||
1999 | 42.37 | a | 48.14 | 54.39 | 51.17 | 62.94 | 74.53 | 85.94 | 82.84 | 70.80 | 64.14 | b | 60.86 | a | 45.19 | 61.94 | ||||||||||
2000 | 42.29 | 47.37 | b | 51.29 | 62.93 | a | 71.30 | a | 79.97 | 90.53 | a | 89.35 | 77.10 | 61.32 | 38.00 | 39.74 | 62.60 | |||||||||
2001 | 40.23 | 38.68 | 48.35 | 57.40 | 66.67 | a | 81.34 | a | 88.03 | 87.89 | c | 79.83 | 64.03 | 57.30 | 43.59 | b | 62.78 | |||||||||
2002 | 43.65 | 45.25 | 45.48 | 61.97 | 68.16 | 87.10 | 93.00 | 86.03 | 76.13 | 54.77 | 46.57 | 44.71 | 62.74 | |||||||||||||
2003 | 49.87 | 40.21 | 51.52 | b | 60.83 | 68.16 | 71.87 | 92.81 | 88.81 | 74.67 | 71.52 | 44.97 | 43.71 | 63.24 | ||||||||||||
2004 | 44.33 | a | 42.68 | a | 56.10 | 61.17 | f | 71.58 | 75.43 | 82.87 | a | 80.90 | b | 75.77 | 62.39 | 47.50 | 43.90 | 62.13 | a | |||||||
2005 | 46.55 | 46.29 | 51.10 | 57.90 | 67.00 | 76.67 | 89.94 | 83.90 | 80.43 | ----- | z | ----- | z | ----- | z | 66.64 | c | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.67 | 42.17 | 47.31 | 56.20 | 66.23 | 76.80 | 85.22 | 83.46 | 74.95 | 62.95 | 48.01 | 40.95 | 60.36 | |||||||||||||
S.D. | 5.08 | 5.18 | 5.47 | 4.51 | 3.90 | 4.39 | 3.39 | 2.91 | 4.07 | 3.78 | 5.03 | 4.22 | 1.75 | |||||||||||||
SKEW | -0.49 | 0.03 | 0.04 | -0.27 | -0.47 | -0.20 | -0.06 | -0.11 | -0.28 | -0.05 | 0.25 | -0.48 | 0.14 | |||||||||||||
MAX | 49.87 | 57.11 | 62.10 | 66.80 | 73.29 | 87.10 | 93.00 | 89.35 | 83.17 | 71.52 | 60.86 | 51.48 | 64.37 | |||||||||||||
MIN | 23.35 | 30.26 | 33.39 | 46.26 | 54.52 | 67.30 | 77.48 | 75.17 | 63.03 | 54.77 | 37.59 | 28.43 | 56.93 | |||||||||||||
YRS | 60 | 60 | 62 | 63 | 63 | 64 | 64 | 64 | 64 | 59 | 59 | 59 | 51 |