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 | 23.07 | b | 14.35 | 18.71 | j | |
1914 | -3.27 | a | -21.48 | a | 3.94 | 19.00 | 40.70 | a | 51.62 | a | 58.40 | f | 51.39 | 44.72 | a | 34.26 | 15.57 | b | -5.87 | 20.96 | a | |||||
1915 | -8.32 | 4.25 | 7.55 | 35.83 | 38.36 | q | 44.33 | 49.00 | 49.06 | 44.73 | 32.74 | 21.40 | ----- | z | 28.06 | b | ||||||||||
1916 | ----- | z | ----- | z | -0.29 | 27.79 | a | 38.19 | 45.27 | 64.53 | a | 53.13 | 41.50 | 28.55 | 18.07 | b | ----- | z | 35.19 | c | ||||||
1917 | ----- | z | ----- | z | 5.77 | 19.60 | 35.74 | 40.30 | 51.26 | 52.42 | 43.30 | 27.52 | 21.93 | b | -10.06 | 28.78 | b | |||||||||
1918 | -14.52 | -5.64 | 13.03 | 23.10 | 38.03 | 48.50 | 53.29 | 48.30 | a | 30.60 | 31.84 | 24.67 | 5.69 | b | 24.74 | |||||||||||
1919 | -0.42 | -5.07 | 4.29 | 26.50 | 38.74 | 54.53 | 55.23 | 52.81 | 43.77 | 26.81 | 12.67 | -19.16 | 24.22 | |||||||||||||
1920 | -18.57 | a | -3.97 | 11.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -3.80 | i | ||
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 | 59.33 | v | 56.45 | 45.17 | 32.94 | 7.30 | 9.34 | b | 30.24 | g | ||||
1960 | -3.16 | -4.28 | 1.19 | 27.53 | 41.13 | 47.53 | 54.06 | 54.97 | 45.03 | 33.68 | 22.13 | -3.23 | 26.38 | |||||||||||||
1961 | -9.55 | 3.25 | 17.19 | 24.97 | 36.13 | 49.73 | 54.58 | 53.71 | 44.37 | 33.94 | 19.60 | 2.42 | 27.53 | |||||||||||||
1962 | -12.16 | -8.00 | 15.00 | 24.27 | 42.26 | 48.43 | 52.13 | 52.06 | 42.67 | 35.74 | 23.77 | -0.65 | 26.29 | |||||||||||||
1963 | -13.39 | -12.54 | 8.35 | 27.43 | 35.71 | 51.33 | 55.87 | 51.19 | 46.37 | 43.13 | 25.70 | -5.52 | 26.14 | |||||||||||||
1964 | 1.32 | -3.55 | 2.03 | 25.30 | 43.42 | 48.93 | 57.45 | 51.16 | 42.30 | 33.29 | 20.37 | -6.77 | 26.27 | |||||||||||||
1965 | -12.06 | -14.00 | -0.03 | 27.13 | 41.13 | 48.40 | 53.16 | 51.26 | 39.27 | 35.60 | a | 18.70 | 11.35 | 24.99 | ||||||||||||
1966 | -16.10 | -2.89 | 14.13 | 24.33 | 34.52 | 51.40 | 58.35 | 53.19 | 44.67 | 32.84 | 15.80 | -1.03 | 25.77 | |||||||||||||
1967 | -6.84 | -17.82 | 10.81 | 25.77 | 34.68 | 51.00 | 53.87 | 50.74 | 44.97 | 33.58 | 17.37 | 4.65 | 25.23 | |||||||||||||
1968 | -5.94 | -7.48 | 17.19 | 28.73 | 39.13 | 49.50 | 54.00 | 52.23 | 47.70 | 38.03 | 22.53 | 1.55 | 28.10 | |||||||||||||
1969 | -3.45 | -2.04 | 5.19 | 28.20 | 40.00 | 43.73 | 55.45 | 56.84 | 47.33 | 31.03 | 17.83 | 8.39 | 27.38 | |||||||||||||
1970 | -10.87 | -6.46 | 4.32 | 27.03 | a | 38.45 | 52.03 | 57.68 | 54.13 | 46.40 | 35.94 | 20.60 | 1.19 | 26.70 | ||||||||||||
1971 | -14.84 | -2.00 | 6.90 | 27.07 | 36.48 | 52.37 | 52.16 | 50.94 | 47.73 | 39.77 | 20.23 | 1.71 | 26.54 | |||||||||||||
1972 | -15.90 | -8.41 | 5.33 | a | 23.48 | a | 44.29 | 50.07 | 54.13 | 54.27 | a | 41.60 | 32.13 | 19.52 | a | -4.13 | 24.70 | |||||||||
1973 | -0.26 | 0.29 | 23.10 | 27.80 | 40.32 | 51.73 | 56.13 | 57.35 | 45.48 | a | 40.16 | 20.60 | 0.70 | a | 30.28 | |||||||||||
1974 | -7.65 | -7.57 | 7.68 | 27.00 | 37.32 | 49.80 | 58.84 | 52.68 | 39.60 | 34.39 | 21.47 | 11.97 | 27.13 | |||||||||||||
1975 | -2.03 | -0.96 | a | 5.52 | 21.67 | 43.03 | 53.20 | 59.71 | 53.39 | 42.50 | 37.26 | 21.43 | -1.50 | a | 27.77 | |||||||||||
1976 | -8.26 | 6.34 | 7.90 | 30.60 | 39.13 | a | 53.37 | 55.77 | 54.63 | a | 42.37 | 28.53 | a | 13.60 | -11.35 | 26.05 | ||||||||||
1977 | -14.74 | 2.04 | 19.71 | 30.80 | 48.39 | 51.60 | 56.94 | 49.90 | 46.70 | 35.23 | 19.00 | 1.26 | 28.90 | |||||||||||||
1978 | -9.77 | -9.68 | 7.06 | 26.17 | 41.67 | a | 49.80 | 55.74 | 55.45 | 48.57 | 36.30 | a | 16.17 | -5.97 | 25.96 | |||||||||||
1979 | -15.77 | -10.21 | 11.74 | 23.97 | 37.35 | 48.57 | 56.20 | a | 52.45 | 46.50 | 33.16 | 18.10 | a | 8.23 | 25.86 | |||||||||||
1980 | -4.94 | -2.38 | 3.97 | a | 28.30 | 43.97 | 49.63 | 56.29 | 56.06 | 44.38 | a | 31.19 | 19.87 | -1.63 | a | 27.06 | ||||||||||
1981 | -4.45 | 4.79 | 16.03 | a | 29.87 | 39.77 | 51.50 | 56.74 | 57.29 | 44.72 | a | 33.23 | 27.31 | a | 5.97 | 30.23 | ||||||||||
1982 | -19.31 | b | -2.68 | 9.17 | a | 21.77 | ----- | z | 45.80 | 55.81 | 49.90 | 44.53 | 36.61 | 14.90 | a | 8.94 | 24.13 | a | ||||||||
1983 | -0.80 | a | 8.44 | a | 17.45 | 24.40 | 35.52 | 48.40 | 61.39 | 58.32 | 47.43 | 34.43 | a | 23.63 | -11.97 | a | 28.89 | |||||||||
1984 | -8.58 | 12.69 | 5.13 | 29.50 | 38.19 | 52.60 | 55.87 | 58.13 | 42.63 | 39.19 | 20.13 | 1.59 | b | 28.92 | ||||||||||||
1985 | -8.30 | a | -4.93 | a | 18.03 | 31.20 | 43.74 | 45.70 | 54.26 | 52.13 | a | 44.87 | 33.13 | a | 10.31 | a | -5.84 | 26.19 | ||||||||
1986 | 0.54 | c | -0.81 | b | 15.61 | 32.20 | 43.42 | 49.34 | a | 57.00 | 50.63 | a | 44.29 | b | 32.97 | b | 13.89 | b | 6.24 | b | 28.78 | |||||
1987 | 6.46 | e | 12.93 | 18.61 | 29.53 | 42.45 | 50.33 | 55.61 | 52.84 | 46.47 | 30.58 | ----- | z | ----- | z | 34.58 | b | |||||||||
1988 | -11.43 | a | -10.39 | a | 11.60 | a | 24.54 | b | 43.03 | 53.17 | 56.32 | 55.23 | 46.00 | 29.13 | a | 20.89 | b | -1.45 | 26.39 | |||||||
1989 | -2.07 | b | -12.68 | 4.39 | 23.73 | 37.14 | c | 48.10 | 56.90 | 52.00 | 42.80 | 31.80 | a | 12.00 | -11.58 | 23.54 | ||||||||||
1990 | 1.87 | -7.00 | 13.26 | 26.47 | 36.29 | 50.07 | a | 55.58 | 56.39 | 46.60 | 31.45 | 21.62 | a | -1.87 | 27.56 | |||||||||||
1991 | -8.97 | 4.18 | 13.90 | 31.10 | 46.13 | a | 54.77 | 55.06 | 56.03 | 44.53 | 30.68 | 14.17 | a | 3.77 | a | 28.78 | ||||||||||
1992 | 3.71 | 9.21 | 12.97 | 26.37 | 41.61 | c | 48.23 | 49.48 | 50.29 | 43.59 | a | 31.70 | a | 20.34 | a | 4.31 | b | 28.48 | ||||||||
1993 | -5.00 | a | -1.39 | 13.29 | 25.20 | 40.27 | a | 48.37 | 55.47 | a | 55.90 | 40.69 | a | 29.06 | 13.83 | a | 5.47 | a | 26.76 | |||||||
1994 | -18.50 | a | -5.96 | 16.48 | 25.93 | 42.00 | 53.34 | a | 55.40 | a | 51.62 | e | 44.58 | k | 36.07 | q | 19.28 | l | 8.62 | o | 27.54 | d | ||||
1995 | -1.85 | k | -10.29 | k | 11.16 | l | 21.12 | m | 35.85 | k | 56.44 | l | ----- | z | ----- | z | 36.19 | n | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -7.66 | -3.35 | 10.13 | 26.61 | 39.99 | 49.67 | 55.57 | 53.31 | 44.13 | 33.50 | 18.83 | 0.24 | 26.90 | |||||||||||||
S.D. | 6.61 | 7.65 | 5.92 | 3.37 | 3.31 | 3.03 | 2.83 | 2.57 | 3.08 | 3.52 | 4.29 | 7.41 | 1.64 | |||||||||||||
SKEW | 0.07 | 0.10 | 0.13 | 0.13 | 0.30 | -0.80 | 0.41 | 0.22 | -2.12 | 0.48 | -0.54 | -0.37 | 0.18 | |||||||||||||
MAX | 6.46 | 12.93 | 23.10 | 35.83 | 48.39 | 54.77 | 64.53 | 58.32 | 48.57 | 43.13 | 27.31 | 14.35 | 30.28 | |||||||||||||
MIN | -19.31 | -21.48 | -0.29 | 19.00 | 34.52 | 40.30 | 49.00 | 48.30 | 30.60 | 26.81 | 7.30 | -19.16 | 23.54 | |||||||||||||
YRS | 40 | 40 | 42 | 41 | 39 | 41 | 40 | 42 | 41 | 41 | 41 | 39 | 34 |