YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1899 | -25.58 | -7.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.93 | 24.16 | f | 2.33 | c | -14.17 | b | 1.85 | g | |||
1900 | -25.65 | -7.11 | 3.88 | g | 28.10 | j | 60.03 | a | 71.39 | b | 78.19 | 63.50 | a | 52.58 | d | 23.93 | a | -3.03 | a | -17.16 | l | 34.87 | c | |||
1901 | ----- | z | 1.83 | v | 13.23 | 30.47 | 44.57 | a | 71.67 | ----- | z | ----- | z | 43.00 | o | 27.48 | 5.03 | a | -9.68 | c | 26.11 | e | ||||
1902 | ----- | z | ----- | z | ----- | z | 41.14 | w | 67.36 | t | ----- | z | ----- | z | 72.67 | p | 50.27 | o | 34.33 | v | ----- | z | ----- | z | ----- | z |
1903 | ----- | z | ----- | z | ----- | z | 42.44 | u | 50.57 | x | 81.78 | u | ----- | z | ----- | z | ----- | z | 21.61 | h | -5.44 | e | 0.81 | j | -5.44 | k |
1904 | -16.78 | v | ----- | z | ----- | z | ----- | z | 60.58 | l | 70.00 | e | 74.36 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.18 | j |
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 | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | -28.81 | e | -11.28 | c | 14.45 | 32.55 | a | 55.23 | 69.90 | 73.72 | b | 63.27 | a | 58.40 | t | 24.88 | f | ----- | z | ----- | z | 33.63 | d | |||
1910 | -24.74 | h | -14.70 | a | 8.77 | 32.00 | a | 57.32 | c | 73.30 | g | 72.09 | h | 62.23 | i | ----- | z | ----- | z | ----- | z | ----- | z | 20.85 | h | |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | 58.83 | g | 79.00 | f | 79.30 | a | 65.18 | i | 51.48 | e | 31.30 | h | 1.33 | u | -15.62 | o | 65.39 | j |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.00 | c | ----- | z | ----- | z | 22.00 | k |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.79 | p | 29.34 | b | 1.89 | b | 1.93 | c | 11.06 | i |
1915 | -11.03 | a | -2.96 | 16.28 | b | 42.37 | 63.62 | b | 76.37 | 81.17 | m | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.77 | f | |||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | -13.60 | p | 18.71 | k | ----- | z | ----- | z | ----- | z | 69.03 | 70.19 | 70.06 | 51.10 | a | 25.10 | a | -7.10 | ----- | z | 46.40 | f | ||||
1918 | -13.93 | a | -4.46 | 8.19 | 30.47 | 51.40 | a | 64.87 | 73.90 | 66.06 | 56.23 | 25.42 | -3.60 | -11.61 | 28.58 | |||||||||||
1919 | -11.17 | a | -0.96 | 7.23 | 38.07 | 55.35 | 62.03 | 73.26 | 68.19 | 53.80 | 29.83 | a | -3.93 | -7.21 | c | 30.37 | ||||||||||
1920 | -13.19 | 12.29 | a | 10.70 | a | 31.67 | 52.39 | 73.37 | 74.17 | a | 67.45 | 51.59 | a | 27.48 | 9.38 | i | -13.80 | a | 34.01 | a | ||||||
1921 | -27.87 | -9.93 | a | 17.00 | a | 36.57 | 54.10 | a | ----- | z | ----- | z | ----- | z | 45.45 | j | 26.61 | -1.73 | 3.55 | 12.29 | d | |||||
1922 | -5.32 | -1.19 | a | 9.61 | 39.11 | b | 49.74 | 65.73 | 62.00 | ----- | z | 43.71 | m | 28.68 | 6.00 | a | -14.83 | a | 23.95 | b | ||||||
1923 | -21.68 | 4.56 | a | 11.77 | 33.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.65 | 7.50 | -23.61 | 7.17 | e | |||||
1924 | -8.97 | -9.86 | a | 26.52 | 22.37 | 54.00 | 69.13 | 69.45 | 64.71 | 47.33 | 21.16 | ----- | z | -15.10 | 30.98 | a | ||||||||||
1925 | -31.77 | -18.79 | 8.97 | 37.60 | 59.61 | 71.37 | 70.29 | 68.26 | 52.80 | 32.26 | 7.53 | -5.45 | 29.39 | |||||||||||||
1926 | 4.29 | -2.68 | 24.13 | 40.47 | 57.74 | 73.07 | 71.42 | 67.48 | 54.63 | 31.68 | 6.27 | -18.74 | 34.15 | |||||||||||||
1927 | -11.52 | -0.29 | 6.52 | 26.17 | 55.71 | 73.77 | 76.16 | 64.32 | 45.03 | 24.81 | -13.37 | -13.90 | 27.78 | |||||||||||||
1928 | -7.00 | 1.93 | 4.23 | 35.87 | 56.23 | 69.80 | 73.32 | 64.68 | 48.13 | 23.74 | 11.73 | -2.29 | 31.70 | |||||||||||||
1929 | -4.42 | 4.61 | 6.23 | 34.63 | 57.06 | 69.83 | 69.39 | 62.97 | 55.67 | 30.29 | 10.73 | -7.55 | 32.45 | |||||||||||||
1930 | -7.68 | -19.32 | 8.81 | 29.63 | 60.45 | 72.17 | 72.74 | 63.48 | 50.17 | 26.74 | -1.00 | -1.55 | 29.55 | |||||||||||||
1931 | -3.86 | b | 5.89 | a | 9.71 | 30.30 | 47.03 | 67.23 | 67.74 | 63.61 | 50.00 | 26.10 | 8.17 | a | -8.33 | a | 30.30 | |||||||||
1932 | -19.55 | -19.10 | 14.55 | 37.17 | 58.40 | a | 67.20 | 73.10 | 61.81 | 50.13 | 28.10 | -7.17 | -17.58 | 27.25 | ||||||||||||
1933 | -28.58 | -7.71 | 13.35 | 37.63 | 56.52 | 65.27 | 70.32 | 66.52 | 48.33 | 23.87 | 3.17 | -26.77 | a | 26.83 | ||||||||||||
1934 | -25.58 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.25 | s | 0.11 | b | -22.03 | -10.96 | j | |
1936 | -8.23 | -17.79 | 14.00 | 36.47 | 54.87 | 67.10 | a | 69.16 | 68.52 | 50.90 | a | 27.94 | 3.27 | -21.33 | a | 28.74 | ||||||||||
1937 | 13.57 | a | -9.48 | a | 14.93 | a | 30.16 | e | 53.56 | o | 74.93 | 73.55 | 63.71 | 58.30 | 30.58 | 9.97 | a | -5.87 | 32.21 | a | ||||||
1938 | -19.42 | -12.31 | b | 17.71 | 37.47 | 58.68 | 70.83 | 73.58 | 65.23 | 57.37 | 38.68 | 9.13 | -0.48 | 33.04 | ||||||||||||
1939 | -8.87 | -7.00 | 11.55 | 41.50 | 56.39 | 73.00 | 74.94 | 65.42 | 50.47 | 27.29 | -0.50 | 6.35 | 32.54 | |||||||||||||
1940 | 2.42 | 0.28 | 17.97 | 50.77 | 60.81 | 72.27 | 75.97 | 71.61 | 55.33 | 30.68 | 6.79 | a | -1.90 | a | 36.92 | |||||||||||
1941 | -9.50 | a | 7.64 | 16.03 | 36.60 | 57.97 | 75.27 | 70.06 | 69.23 | 52.87 | 24.94 | 4.97 | -11.23 | 32.90 | ||||||||||||
1942 | 1.87 | 7.29 | 14.29 | 36.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 15.01 | h | ||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.44 | m | 65.19 | 50.40 | 31.71 | 14.73 | -1.75 | k | 40.51 | h | ||||
1944 | -3.77 | 2.62 | 13.29 | 37.87 | 57.55 | 73.13 | 73.35 | 62.68 | 48.33 | 32.94 | 5.87 | -3.90 | 33.33 | |||||||||||||
1945 | -1.94 | 3.86 | 12.52 | 32.57 | 51.48 | 66.80 | 71.00 | 62.68 | 47.47 | 31.81 | -6.93 | -7.13 | 30.35 | |||||||||||||
1946 | -6.97 | -1.21 | 10.81 | 32.70 | 56.32 | 73.63 | 77.39 | 65.48 | 45.90 | a | 31.48 | -5.96 | f | -30.19 | e | 32.30 | a | |||||||||
1947 | -23.93 | a | -1.73 | b | 22.55 | 33.73 | 57.42 | 67.90 | 74.94 | 61.48 | 49.17 | a | 26.90 | a | 8.00 | a | 0.87 | a | 31.44 | |||||||
1948 | -5.61 | -2.97 | 11.19 | 31.67 | 54.10 | 68.97 | 69.65 | 61.16 | 46.57 | 24.55 | -5.30 | -23.87 | 27.51 | |||||||||||||
1949 | -11.90 | -9.86 | 24.19 | 30.13 | 48.97 | 62.90 | 73.77 | 70.20 | a | 57.60 | 32.90 | 13.37 | -13.84 | 31.54 | ||||||||||||
1950 | -0.68 | -19.82 | 24.00 | 35.27 | 57.74 | 70.83 | 74.74 | 68.52 | 50.20 | 26.16 | -0.10 | -1.23 | 32.14 | |||||||||||||
1951 | -27.00 | -14.68 | 3.68 | 33.87 | 58.65 | 64.93 | 72.55 | 69.29 | 50.20 | 25.55 | 15.04 | f | ----- | z | 33.70 | b | ||||||||||
1952 | -22.90 | -3.55 | 12.74 | 35.07 | 48.48 | 70.93 | 72.68 | 64.52 | 45.83 | 30.94 | 16.87 | -3.77 | 30.65 | |||||||||||||
1953 | -28.74 | 2.79 | 14.71 | 42.33 | 58.61 | 73.17 | 74.58 | 66.87 | 50.07 | 26.35 | 0.20 | -10.10 | 30.90 | |||||||||||||
1954 | -17.71 | -11.43 | 19.55 | 30.37 | 58.77 | 69.40 | 72.19 | 68.58 | 50.47 | 30.06 | 12.41 | a | -23.13 | 29.96 | ||||||||||||
1955 | -8.00 | -13.82 | 11.68 | 27.83 | 53.94 | 67.23 | 77.00 | 62.90 | 50.40 | 28.23 | -12.67 | -11.23 | 27.79 | |||||||||||||
1956 | -21.23 | -10.62 | 13.13 | 36.80 | 55.13 | 68.67 | 72.81 | 61.77 | 48.43 | 18.03 | -0.23 | -30.97 | 25.98 | |||||||||||||
1957 | -1.00 | -3.18 | 17.81 | 36.90 | 53.19 | 71.87 | 71.23 | 72.10 | 52.63 | 32.16 | 8.17 | -13.94 | 33.16 | |||||||||||||
1958 | -7.48 | -4.07 | 18.13 | 35.17 | 57.87 | 75.13 | 73.81 | 71.10 | 51.80 | 19.42 | 3.13 | -6.23 | 32.31 | |||||||||||||
1959 | -27.35 | 5.39 | 2.03 | 32.13 | 51.68 | 73.63 | 64.71 | 64.90 | 48.83 | 26.32 | 3.57 | -7.39 | 28.21 | |||||||||||||
1960 | -7.90 | 3.86 | 9.68 | 27.23 | 59.06 | 69.27 | 72.39 | 66.42 | 46.57 | 26.00 | -8.93 | 2.29 | 30.49 | |||||||||||||
1961 | 1.39 | -6.68 | 3.58 | 25.10 | 57.77 | 69.87 | 70.03 | 61.55 | 51.40 | 21.14 | c | -7.33 | -27.03 | 26.73 | ||||||||||||
1962 | -1.48 | 5.71 | 10.65 | 32.07 | 49.81 | 68.00 | 71.90 | 67.61 | 47.53 | ----- | z | 3.00 | -2.77 | 32.00 | a | |||||||||||
1963 | -8.77 | -0.25 | 12.97 | 34.47 | 58.06 | 64.53 | 68.26 | 64.23 | 52.42 | f | 26.32 | -5.13 | ----- | z | 31.47 | b | ||||||||||
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -28.00 | a | -28.00 | k |
1966 | -28.61 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -28.61 | k | |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.54 | d | 70.11 | l | 63.90 | j | 50.72 | a | 27.50 | e | 8.36 | e | ----- | z | 39.03 | h |
1968 | -12.28 | f | -6.67 | k | 19.73 | i | 33.67 | l | 56.33 | s | 73.11 | k | 75.20 | k | 73.08 | s | 47.62 | q | 24.53 | p | 8.16 | k | -8.70 | h | ----- | z |
1969 | -18.09 | t | -5.88 | d | 20.29 | 40.13 | 58.84 | 77.80 | 73.84 | ----- | z | 44.12 | v | ----- | z | -2.29 | b | ----- | z | 37.53 | e | |||||
1970 | ----- | z | ----- | z | ----- | z | 38.08 | r | 52.50 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | 10.80 | k | 27.20 | 52.97 | 70.68 | b | 73.48 | h | 63.00 | e | 48.18 | b | 24.62 | b | 1.55 | a | 0.81 | o | 41.17 | e | ||
1972 | -9.00 | k | -3.87 | n | 21.29 | x | 27.42 | k | 57.06 | m | 69.77 | q | 77.92 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1980 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1981 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1983 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.17 | r | 26.34 | b | -6.23 | -12.03 | b | 2.69 | i | |
1985 | 8.87 | a | -8.50 | 23.16 | 29.57 | 56.61 | c | 72.21 | b | 74.67 | a | 67.32 | 50.48 | a | 22.13 | -2.34 | a | 4.19 | 33.20 | |||||||
1986 | -4.32 | 2.32 | 10.71 | 29.43 | 55.73 | a | 75.40 | 75.23 | 63.40 | a | 53.30 | 25.55 | -6.79 | a | 2.70 | a | 31.89 | |||||||||
1987 | -2.55 | -5.39 | 16.29 | 35.97 | 59.35 | 73.85 | d | 73.65 | 67.26 | 50.50 | b | 31.16 | 6.66 | a | -5.57 | a | 33.43 | |||||||||
1988 | -8.66 | b | 1.03 | 19.17 | a | 38.72 | a | 59.64 | c | 76.86 | a | 76.90 | b | 68.59 | b | 51.97 | 20.22 | d | -2.54 | b | 3.32 | 33.77 | ||||
1989 | -26.79 | b | 5.07 | a | 12.23 | 44.61 | b | 58.50 | a | 71.41 | a | 78.07 | b | 72.39 | 56.00 | e | 26.03 | b | -10.75 | b | 3.07 | b | 32.49 | |||
1990 | -18.53 | a | -24.61 | 22.61 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | -6.84 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -11.95 | -4.64 | 13.70 | 34.38 | 55.80 | 70.47 | 72.78 | 65.94 | 50.98 | 27.38 | 1.56 | -9.98 | 30.80 | |||||||||||||
S.D. | 11.03 | 8.29 | 5.72 | 5.18 | 3.82 | 3.56 | 3.26 | 3.03 | 3.18 | 4.18 | 7.20 | 10.01 | 2.50 | |||||||||||||
SKEW | -0.08 | -0.33 | 0.24 | 0.38 | -0.84 | -0.22 | -0.75 | 0.36 | 0.40 | 0.32 | -0.03 | -0.40 | -0.05 | |||||||||||||
MAX | 13.57 | 12.29 | 26.52 | 50.77 | 63.62 | 77.80 | 79.30 | 72.39 | 58.30 | 38.68 | 16.87 | 6.35 | 36.92 | |||||||||||||
MIN | -31.77 | -24.61 | 2.03 | 22.37 | 44.57 | 62.03 | 62.00 | 61.16 | 45.03 | 18.03 | -13.37 | -30.97 | 25.98 | |||||||||||||
YRS | 54 | 55 | 54 | 54 | 52 | 54 | 51 | 49 | 50 | 55 | 55 | 51 | 37 |