YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | -4.26 | 9.39 | 15.06 | 36.57 | 38.94 | 44.40 | 50.37 | a | 47.13 | 43.03 | 32.13 | 18.20 | 3.29 | 27.85 | ||||||||||||
1916 | -16.06 | -4.14 | 13.03 | 29.40 | 37.52 | 47.38 | a | 61.77 | 52.97 | 41.34 | a | 27.39 | ----- | z | 14.52 | j | 29.06 | b | ||||||||
1917 | -8.43 | c | ----- | z | 11.93 | a | 27.47 | 33.94 | 42.93 | 52.80 | a | 46.45 | 40.77 | 22.57 | a | 24.93 | -7.23 | i | 29.54 | b | ||||||
1918 | -10.00 | -1.70 | a | 23.03 | 29.30 | 37.16 | 46.20 | 49.97 | 51.19 | 33.37 | 31.55 | 20.57 | 5.87 | 26.38 | ||||||||||||
1919 | 0.93 | c | -3.25 | 6.16 | 30.24 | a | 40.71 | 52.07 | 53.32 | 50.71 | 44.43 | 18.39 | 5.12 | e | -2.87 | 24.66 | ||||||||||
1920 | -11.27 | a | 0.29 | a | 13.06 | 19.43 | 40.61 | 51.10 | 55.10 | 51.94 | 45.00 | 33.13 | ----- | z | ----- | z | 29.84 | b | ||||||||
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.93 | 58.97 | b | 51.61 | 41.27 | 32.13 | 18.57 | -6.06 | 35.34 | e | ||||||
1965 | -11.23 | -2.89 | 5.94 | 32.50 | 41.71 | 50.63 | 56.00 | 52.26 | 37.43 | 34.61 | 15.97 | 10.42 | 26.95 | |||||||||||||
1966 | -16.71 | -5.00 | 23.81 | e | 28.20 | 37.74 | 52.23 | 59.84 | 52.71 | 43.77 | 32.42 | 11.70 | 1.32 | 26.84 | ||||||||||||
1967 | -2.58 | -8.43 | 16.74 | 27.83 | 35.61 | 49.43 | 51.06 | 49.94 | 45.27 | 33.26 | 19.07 | 5.35 | 26.88 | |||||||||||||
1968 | -3.19 | -0.24 | 22.97 | 30.87 | 38.68 | 51.93 | 54.65 | 53.10 | 46.50 | 34.65 | 22.00 | 1.81 | 29.48 | |||||||||||||
1969 | -10.68 | 4.93 | 6.03 | 33.47 | 42.45 | 46.17 | 55.77 | 56.65 | 46.40 | 31.58 | 22.24 | a | 7.16 | 28.51 | ||||||||||||
1970 | -7.87 | 0.29 | 6.61 | 30.50 | 41.29 | 56.60 | 58.21 | l | 54.61 | 45.90 | 34.29 | 19.13 | -1.35 | 25.45 | a | |||||||||||
1971 | -11.90 | 1.36 | 17.13 | 31.80 | 40.00 | 54.60 | 52.26 | 52.65 | 43.80 | 36.74 | 20.30 | 1.77 | 28.38 | |||||||||||||
1972 | -7.87 | -5.38 | 16.13 | 30.53 | 46.71 | 51.40 | 52.97 | 55.94 | 42.93 | 30.45 | 19.17 | -3.68 | 27.44 | |||||||||||||
1973 | 5.10 | 8.50 | 28.13 | 30.00 | 40.26 | 50.40 | 52.61 | 58.23 | 44.50 | 38.35 | 15.47 | 1.48 | 31.09 | |||||||||||||
1974 | -10.06 | -3.75 | 9.19 | 29.73 | 41.19 | 49.60 | 58.71 | 50.94 | 39.30 | 32.27 | a | 20.57 | 11.23 | 27.41 | ||||||||||||
1975 | 2.68 | 1.50 | f | 9.65 | 27.30 | 43.29 | 52.40 | 57.65 | 52.58 | 40.37 | 36.23 | 20.52 | a | 4.81 | 31.59 | a | ||||||||||
1976 | -1.97 | 12.00 | 11.19 | 33.33 | 37.23 | 51.17 | 51.47 | a | 53.32 | 41.43 | 26.06 | 10.93 | -9.26 | l | 29.65 | a | ||||||||||
1977 | -15.58 | 8.19 | a | 20.87 | 34.40 | 52.90 | 52.90 | 56.23 | 48.10 | 46.20 | 32.52 | j | 5.20 | y | -1.00 | 30.32 | b | |||||||||
1978 | -11.34 | b | -5.11 | 14.45 | 30.30 | 43.52 | 49.86 | a | 56.40 | a | 53.16 | 48.07 | a | 33.42 | 9.41 | a | -4.06 | 26.51 | ||||||||
1979 | -15.59 | b | -12.36 | 9.45 | b | 24.79 | a | 37.55 | 50.57 | 56.57 | a | 52.17 | a | 44.47 | 30.94 | 15.50 | 11.71 | 25.48 | ||||||||
1980 | -2.65 | 0.17 | e | 10.03 | 32.20 | 43.13 | 50.69 | a | 54.45 | b | 51.74 | 43.37 | 31.55 | 23.59 | a | 3.39 | 28.47 | |||||||||
1981 | 2.61 | 10.21 | 21.58 | 32.18 | b | 41.23 | 48.58 | d | 56.29 | c | 54.39 | 43.00 | 32.25 | c | 25.47 | -1.50 | c | 30.52 | ||||||||
1982 | -19.77 | -4.54 | 11.57 | a | 26.33 | 44.77 | a | 44.90 | 56.08 | e | 52.19 | 42.83 | 33.83 | b | 13.62 | a | 11.77 | 26.13 | ||||||||
1983 | 5.60 | a | 12.39 | 21.63 | d | 27.97 | a | 36.07 | a | 50.73 | 60.65 | 58.32 | 43.97 | 33.19 | 22.73 | -11.48 | b | 30.15 | ||||||||
1984 | 1.19 | e | ----- | z | 11.77 | 30.86 | a | 39.29 | 52.20 | 55.45 | 55.87 | 39.23 | 34.97 | 16.34 | a | -2.34 | b | 30.44 | a | |||||||
1985 | -5.93 | b | -1.18 | 21.77 | 30.67 | 43.35 | 45.53 | 51.65 | e | 50.58 | 40.31 | a | 30.13 | a | 2.45 | a | -10.07 | c | 24.94 | |||||||
1986 | 3.80 | a | -1.73 | f | 21.29 | 30.87 | 42.71 | 51.81 | c | 55.38 | e | 48.23 | 40.60 | 29.26 | 7.90 | 7.23 | a | 30.83 | a | |||||||
1987 | 5.70 | a | 14.39 | 15.37 | a | 31.07 | 41.73 | a | 49.43 | b | 55.45 | 50.32 | 43.93 | 27.45 | 19.72 | a | 9.55 | 30.34 | ||||||||
1988 | -7.53 | a | -4.29 | a | 17.00 | 23.20 | 46.42 | 58.20 | 58.42 | 57.48 | 46.10 | 30.97 | 18.07 | 3.50 | a | 28.96 | ||||||||||
1989 | -0.36 | c | -8.46 | 11.67 | a | 30.79 | a | 43.84 | 49.76 | a | 59.74 | 56.74 | 46.07 | 29.90 | 13.07 | -4.19 | 27.38 | |||||||||
1990 | 11.34 | b | 5.68 | 22.68 | 29.21 | a | 39.39 | 53.33 | 54.42 | g | 54.97 | 48.10 | 31.35 | 19.23 | -0.23 | 28.64 | a | |||||||||
1991 | -4.39 | 11.43 | 17.87 | 33.50 | 48.48 | 58.17 | 57.48 | 58.03 | 46.03 | 29.71 | 14.57 | 9.84 | 31.73 | |||||||||||||
1992 | 5.97 | 14.52 | 24.39 | 29.67 | 43.77 | 50.13 | 51.60 | a | 50.61 | 42.80 | 29.97 | 19.62 | a | -1.21 | c | 30.15 | ||||||||||
1993 | -2.83 | a | -0.75 | 17.35 | 30.60 | 42.57 | a | 50.07 | 53.70 | d | 55.97 | 40.67 | 30.13 | 15.00 | a | 5.71 | 28.18 | |||||||||
1994 | -14.71 | -8.46 | 22.29 | 29.00 | 45.42 | 54.67 | 54.87 | 53.13 | 49.40 | 39.23 | 24.00 | c | 10.58 | 29.95 | ||||||||||||
1995 | 1.29 | 3.32 | 17.58 | 28.83 | 41.80 | a | 57.57 | 58.32 | 58.06 | 43.70 | 34.03 | 12.69 | a | 2.77 | 30.00 | |||||||||||
1996 | -12.50 | a | 1.36 | a | 8.81 | 27.63 | 41.03 | 54.83 | 56.03 | 55.19 | 46.62 | a | 33.19 | 8.23 | -2.65 | 26.48 | ||||||||||
1997 | -8.17 | a | 2.89 | a | 10.26 | 27.33 | c | 39.23 | 54.50 | 58.42 | 54.65 | 47.03 | 35.54 | e | 16.79 | a | 17.58 | 29.67 | ||||||||
1998 | 2.87 | 18.39 | 16.68 | 36.03 | 46.71 | 51.77 | 57.81 | 57.55 | 47.33 | 37.32 | 21.47 | 6.67 | a | 33.38 | ||||||||||||
1999 | -3.77 | a | 10.57 | 19.45 | b | 32.76 | i | 45.86 | b | 53.77 | 57.10 | k | 55.72 | b | 43.67 | 32.20 | a | 22.90 | 11.94 | 29.23 | b | |||||
2000 | -0.53 | a | 9.37 | b | 24.13 | a | 28.27 | 42.73 | a | 50.40 | 56.13 | h | 56.57 | c | 42.21 | a | 33.30 | a | 17.43 | -8.27 | e | 26.87 | a | |||
2001 | 3.07 | a | -7.22 | a | 14.93 | b | 32.21 | a | 45.27 | a | 53.17 | 61.17 | g | 56.10 | b | 44.67 | 29.67 | a | 26.18 | b | 7.90 | 27.81 | a | |||
2002 | 4.72 | b | 10.75 | 6.10 | 26.50 | 34.57 | a | 54.82 | b | 59.80 | f | 53.70 | a | 47.32 | e | 26.53 | a | 18.27 | 9.37 | a | 26.60 | a | ||||
2003 | -2.32 | -5.85 | a | 10.90 | 30.50 | 42.13 | a | 53.59 | c | 56.50 | e | 57.68 | 43.59 | a | 33.00 | 15.09 | g | 10.53 | a | 30.02 | a | |||||
2004 | -9.33 | a | 0.68 | a | 17.19 | 29.38 | a | 39.00 | 49.58 | f | 55.84 | f | 48.97 | 47.50 | 33.26 | 22.07 | 6.83 | a | 23.55 | b | ||||||
2005 | -7.83 | a | 6.23 | b | 14.70 | a | 33.90 | 42.13 | 56.19 | c | 58.43 | h | 52.50 | k | 46.32 | b | 33.41 | d | 21.54 | d | 8.11 | c | 25.47 | b | ||
2006 | 14.68 | -2.08 | b | 19.00 | g | 35.00 | c | 46.36 | f | 53.68 | b | 59.80 | k | 54.77 | a | 43.50 | 28.92 | e | 16.67 | c | 12.38 | b | 28.61 | c | ||
2007 | -1.14 | b | -5.52 | c | 18.21 | c | 30.14 | b | 44.19 | e | 55.59 | a | 59.21 | g | 52.14 | c | 45.27 | 36.30 | a | 18.38 | d | -1.04 | c | 26.59 | a | |
2008 | -8.60 | f | -7.81 | c | 11.89 | d | 26.54 | d | 38.58 | e | 50.95 | h | 56.80 | k | 54.68 | f | 44.12 | e | 32.33 | d | 20.30 | c | -7.54 | g | 23.71 | e |
2009 | -14.88 | f | -1.11 | a | 7.24 | f | 28.59 | c | 38.58 | g | 49.29 | f | 51.75 | o | 52.36 | c | 49.32 | b | 32.92 | e | 24.80 | e | 2.61 | m | 31.15 | f |
2010 | -3.10 | j | -5.76 | k | 22.75 | k | 35.12 | e | 43.48 | f | 53.75 | f | 58.39 | h | 58.19 | o | 40.50 | t | ----- | z | ----- | z | ----- | z | 35.12 | k |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -4.26 | 1.44 | 15.50 | 30.04 | 41.52 | 51.49 | 55.57 | 53.41 | 43.93 | 31.93 | 17.76 | 3.48 | 28.34 | |||||||||||||
S.D. | 7.74 | 7.48 | 5.75 | 3.17 | 3.70 | 3.47 | 2.93 | 3.04 | 3.06 | 3.67 | 5.32 | 6.61 | 2.09 | |||||||||||||
SKEW | 0.15 | 0.38 | 0.09 | -0.54 | 0.38 | -0.29 | -0.03 | -0.22 | -0.81 | -1.10 | -0.86 | -0.23 | 0.29 | |||||||||||||
MAX | 14.68 | 18.39 | 28.13 | 36.57 | 52.90 | 58.20 | 61.77 | 58.32 | 49.40 | 39.23 | 26.18 | 17.58 | 33.38 | |||||||||||||
MIN | -19.77 | -12.36 | 5.94 | 19.43 | 33.94 | 42.93 | 49.97 | 46.45 | 33.37 | 18.39 | 2.45 | -11.48 | 24.66 | |||||||||||||
YRS | 49 | 47 | 49 | 51 | 49 | 49 | 40 | 50 | 52 | 51 | 48 | 46 | 30 |