YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.80 | 34.90 | 17.33 | -0.84 | 23.55 | h | ||||
1911 | -11.68 | 3.61 | 15.47 | a | 27.57 | 41.23 | 54.03 | 51.97 | 50.13 | 41.73 | 30.32 | 6.82 | b | 9.55 | 26.73 | |||||||||||
1912 | -21.16 | -3.48 | 5.84 | 27.90 | 39.65 | 45.03 | 54.52 | 50.00 | 45.43 | 32.90 | a | 22.20 | 6.40 | a | 25.44 | |||||||||||
1913 | -9.07 | a | -7.93 | 4.10 | 31.67 | 35.90 | 50.37 | 51.45 | 53.86 | b | 44.13 | 30.10 | 25.10 | 15.13 | 27.07 | |||||||||||
1914 | 2.39 | -15.54 | 10.77 | 26.14 | a | 42.35 | 47.83 | 56.42 | 51.00 | 44.13 | 39.23 | 19.03 | -2.29 | 26.79 | ||||||||||||
1915 | -3.42 | 9.46 | 14.68 | 37.50 | 37.52 | 45.63 | 50.45 | 47.48 | 43.27 | 33.31 | b | 22.23 | 8.96 | g | 30.74 | a | ||||||||||
1916 | -11.43 | a | -6.59 | 7.10 | 27.90 | 38.97 | a | 46.77 | 62.58 | 55.07 | a | 42.21 | b | 30.65 | 18.20 | -4.03 | 25.62 | |||||||||
1917 | -8.83 | b | -11.89 | 12.19 | 28.57 | 40.24 | b | 51.60 | e | 60.55 | 54.23 | 50.00 | 26.00 | a | 24.25 | b | -9.00 | 26.49 | ||||||||
1918 | -11.16 | -3.71 | 20.45 | 27.20 | 40.10 | 48.80 | 52.87 | 52.55 | 34.30 | 33.94 | 25.48 | a | 12.68 | 27.79 | ||||||||||||
1919 | 6.19 | 1.96 | 12.29 | 29.83 | 41.06 | 55.93 | 57.29 | 52.29 | 40.97 | 27.16 | 11.47 | -6.81 | 27.47 | |||||||||||||
1920 | -10.00 | -0.59 | 14.16 | 21.30 | 39.61 | 50.37 | 51.39 | 50.10 | 47.33 | 38.57 | a | 17.37 | 10.00 | a | 27.47 | |||||||||||
1921 | 4.10 | 7.54 | 11.35 | 31.63 | 41.16 | 54.00 | 59.48 | 49.71 | 45.67 | 33.00 | 12.60 | 3.68 | 29.49 | |||||||||||||
1922 | -4.77 | -3.81 | a | 14.32 | 29.33 | 47.29 | 50.37 | 51.97 | 52.74 | 44.93 | 34.00 | 26.77 | -1.71 | 28.45 | ||||||||||||
1923 | -3.90 | -8.25 | 1.19 | 26.63 | 40.47 | a | 51.93 | 56.90 | 47.00 | 44.50 | 33.29 | 24.10 | 13.32 | 27.27 | ||||||||||||
1924 | -14.53 | a | 4.69 | 15.42 | 28.20 | 33.77 | 44.93 | 51.32 | 49.29 | 40.87 | 37.19 | 16.90 | a | -8.65 | 24.95 | |||||||||||
1925 | -3.58 | 1.86 | 17.32 | c | 32.00 | 35.13 | 50.83 | 53.39 | 53.61 | 47.27 | 25.87 | a | 16.87 | 1.10 | 27.64 | |||||||||||
1926 | -0.68 | 6.46 | 9.00 | 23.77 | 40.58 | 45.03 | 53.39 | 51.65 | 41.67 | 31.48 | 13.17 | -2.03 | 26.12 | |||||||||||||
1927 | -5.87 | 2.57 | 18.32 | 27.70 | 37.16 | 47.10 | 50.32 | 45.90 | 47.80 | 33.45 | 13.67 | -7.35 | 25.90 | |||||||||||||
1928 | -0.58 | 4.24 | 12.42 | 22.73 | 42.39 | 46.90 | 54.74 | 53.48 | 42.53 | 34.65 | 23.90 | 10.74 | 29.01 | |||||||||||||
1929 | -16.35 | -5.50 | 17.90 | 28.83 | 36.65 | 46.93 | 54.23 | 51.87 | 42.47 | 35.48 | 14.93 | 1.77 | 25.77 | |||||||||||||
1930 | -11.03 | a | 9.54 | 13.39 | 29.77 | 41.45 | 51.60 | 53.97 | 53.10 | 41.93 | 34.13 | 20.40 | 8.71 | 28.91 | ||||||||||||
1931 | 7.90 | 13.86 | 17.45 | 29.43 | 38.94 | 53.20 | 56.65 | 52.19 | 48.67 | 38.58 | 26.70 | 15.84 | 33.28 | |||||||||||||
1932 | 6.23 | 0.28 | 4.90 | 28.07 | 40.61 | 52.93 | 54.16 | 52.77 | 41.13 | 30.97 | 14.37 | -1.71 | 27.06 | |||||||||||||
1933 | 1.97 | -7.96 | 11.38 | e | 27.28 | a | 41.81 | 53.52 | a | 56.39 | 51.10 | 46.40 | 27.58 | 13.37 | -5.97 | 26.40 | ||||||||||
1934 | 3.39 | -4.21 | 5.94 | 27.47 | 43.58 | 49.69 | a | 53.32 | 45.61 | m | 43.23 | 36.48 | 24.63 | -1.84 | 25.61 | a | ||||||||||
1935 | -9.03 | 6.32 | 14.10 | 26.50 | 35.84 | 46.48 | a | 59.74 | 53.65 | 40.07 | 31.94 | 12.33 | 5.43 | a | 26.95 | |||||||||||
1936 | -10.45 | -17.75 | a | 14.06 | 20.73 | 41.42 | 45.13 | 57.00 | 53.13 | 45.03 | 26.39 | 12.57 | 2.74 | 24.17 | ||||||||||||
1937 | -14.13 | -2.43 | 8.42 | 28.37 | 41.19 | 48.30 | 55.13 | 57.55 | 43.50 | 30.03 | 17.17 | -0.77 | 26.03 | |||||||||||||
1938 | -4.26 | 6.18 | 20.03 | 27.00 | 40.13 | 49.13 | 53.97 | 54.81 | 43.30 | 36.58 | 15.63 | 3.42 | 28.83 | |||||||||||||
1939 | 1.55 | -10.64 | 7.58 | 23.87 | 41.16 | 50.43 | 55.19 | 53.52 | 44.17 | 31.55 | 21.17 | 14.68 | 27.85 | |||||||||||||
1940 | -5.03 | 5.62 | 9.77 | a | 26.33 | 37.10 | 45.97 | 53.68 | 52.90 | a | 46.10 | 36.00 | a | 14.47 | 4.13 | 27.25 | ||||||||||
1941 | 0.81 | 0.32 | 11.87 | 35.53 | 44.23 | 50.83 | 56.16 | 52.68 | 46.93 | 33.48 | 20.97 | 9.39 | 30.27 | |||||||||||||
1942 | 2.58 | 1.29 | 18.97 | 32.30 | 36.39 | 48.40 | 51.06 | 52.77 | 40.63 | 32.23 | 17.50 | 1.00 | 27.93 | |||||||||||||
1943 | -8.81 | -0.50 | 3.58 | 26.10 | 37.77 | 50.27 | 57.03 | 53.00 | 40.23 | 33.13 | 16.00 | a | 3.68 | 25.96 | ||||||||||||
1944 | 9.71 | -1.41 | 11.74 | 25.83 | 43.19 | 50.37 | 54.42 | 53.26 | 45.73 | 32.32 | 28.17 | 4.06 | 29.78 | |||||||||||||
1945 | -1.16 | 1.57 | 22.13 | 25.73 | 32.77 | 44.13 | 52.16 | 52.13 | 41.53 | 29.29 | 18.37 | 1.00 | 26.64 | |||||||||||||
1946 | -1.23 | -3.36 | 23.19 | 30.40 | 37.29 | 48.43 | 54.81 | 50.58 | 43.50 | 33.06 | 16.73 | 2.48 | 27.99 | |||||||||||||
1947 | 0.35 | -4.46 | 10.48 | 24.93 | 35.87 | 47.37 | 55.13 | 58.32 | 43.20 | 40.94 | 14.57 | 4.48 | 27.60 | |||||||||||||
1948 | -7.60 | a | -4.79 | 11.58 | 31.60 | 37.81 | 48.70 | 54.84 | 54.61 | 46.30 | 34.13 | 22.27 | 3.42 | 27.74 | ||||||||||||
1949 | 0.65 | -4.71 | 9.97 | 29.93 | 40.45 | 52.43 | 56.42 | 55.94 | 41.37 | 33.48 | 22.28 | a | 1.81 | 28.33 | ||||||||||||
1950 | -12.94 | -1.04 | 5.94 | 20.70 | 36.90 | 47.33 | 52.00 | 46.23 | a | 44.60 | 36.55 | 14.38 | a | -1.03 | 24.14 | |||||||||||
1951 | -4.58 | 4.25 | 8.81 | 27.69 | a | 42.52 | 48.03 | 53.26 | 50.45 | 41.17 | 33.68 | 12.30 | 1.48 | 26.59 | ||||||||||||
1952 | -4.00 | a | 11.14 | 13.23 | a | 30.70 | 39.74 | 52.30 | 55.16 | 52.03 | 45.97 | 27.03 | 22.17 | 14.10 | 29.96 | |||||||||||
1953 | 3.48 | 3.18 | 17.71 | 27.13 | 39.52 | 51.03 | 54.06 | 55.68 | 44.63 | 39.19 | 25.43 | 6.29 | 30.61 | |||||||||||||
1954 | -6.74 | 14.68 | 10.23 | 26.83 | 36.87 | 52.54 | b | 54.45 | 52.00 | 45.43 | 33.61 | 25.70 | 11.87 | 29.79 | ||||||||||||
1955 | 0.13 | -0.25 | d | 4.04 | d | 36.77 | 43.87 | 54.07 | 60.71 | 58.35 | 45.43 | 36.16 | 13.10 | -1.16 | 29.27 | |||||||||||
1956 | 5.10 | 0.00 | 9.39 | 25.33 | 38.77 | 54.47 | 53.77 | 52.71 | 41.07 | 39.55 | 21.77 | 4.90 | 28.90 | |||||||||||||
1957 | -11.06 | 0.68 | 11.77 | 28.47 | 40.19 | 49.87 | 58.55 | 53.48 | 42.70 | 35.61 | 21.97 | 8.16 | 28.37 | |||||||||||||
1958 | 7.26 | 0.18 | 20.16 | 31.40 | 39.45 | 44.60 | 53.29 | 52.13 | 46.63 | 36.77 | 20.97 | -5.77 | 28.92 | |||||||||||||
1959 | -9.35 | -2.04 | 16.35 | 27.80 | 43.39 | 52.67 | 55.94 | 57.45 | 46.13 | 33.29 | 9.57 | 15.06 | 28.85 | |||||||||||||
1960 | 1.10 | 4.34 | 8.68 | 29.20 | 42.48 | 48.90 | 54.81 | 57.39 | 45.77 | 35.71 | 24.23 | 1.06 | 29.47 | |||||||||||||
1961 | -3.87 | 10.39 | 23.13 | 26.50 | 38.16 | 50.93 | 56.39 | 55.81 | 46.13 | 35.97 | 21.47 | 6.97 | 30.66 | |||||||||||||
1962 | -6.84 | -0.64 | 19.87 | 25.83 | 43.68 | 49.76 | a | 53.16 | 52.81 | 43.57 | 34.00 | c | 24.00 | 3.19 | 28.53 | |||||||||||
1963 | -12.04 | c | -8.57 | e | 13.87 | 28.07 | 35.84 | 49.43 | 54.45 | 47.55 | 45.43 | 39.61 | 23.60 | -4.61 | 26.05 | |||||||||||
1964 | 1.68 | -1.97 | 7.06 | 26.63 | 41.39 | 46.14 | a | 52.84 | 47.29 | 40.97 | 31.03 | 20.30 | -5.52 | 25.65 | ||||||||||||
1965 | -12.06 | -12.46 | 1.60 | a | 27.43 | 41.39 | 45.97 | 49.55 | 47.55 | 36.50 | 34.26 | 16.90 | 11.06 | 23.97 | ||||||||||||
1966 | -15.16 | -1.50 | 16.39 | 25.20 | 32.87 | 49.70 | 55.13 | 48.81 | 40.50 | 29.61 | 14.27 | 0.77 | 24.72 | |||||||||||||
1967 | -3.52 | -14.89 | 12.16 | 25.63 | 32.26 | 47.87 | 49.42 | 46.23 | 41.27 | 30.81 | 14.60 | 2.71 | 23.71 | |||||||||||||
1968 | -5.61 | -6.21 | 16.16 | 27.73 | 37.42 | 46.23 | 51.83 | a | 50.13 | 44.77 | 36.23 | 20.73 | 1.16 | 26.71 | ||||||||||||
1969 | -4.19 | 2.46 | 7.65 | 30.28 | a | 39.00 | 42.03 | 51.32 | 52.10 | 44.73 | 30.81 | 18.57 | 8.42 | 26.93 | ||||||||||||
1970 | -9.81 | -4.68 | 5.81 | 28.10 | 38.81 | 50.33 | 55.61 | 50.42 | 44.03 | 35.42 | 17.83 | -1.80 | a | 25.84 | ||||||||||||
1971 | -13.61 | -0.61 | 9.58 | 26.37 | 35.52 | 50.47 | 48.45 | 46.35 | 45.40 | 38.30 | a | 17.33 | 0.81 | 25.36 | ||||||||||||
1972 | -15.52 | -7.24 | 7.13 | a | 24.93 | 42.58 | 47.00 | 51.16 | 50.70 | a | 39.63 | 30.45 | 18.80 | -4.48 | 23.76 | |||||||||||
1973 | -1.06 | 1.82 | 24.77 | 27.24 | a | 39.52 | 50.17 | 54.48 | 56.03 | 41.83 | 38.45 | 20.07 | 3.58 | 29.74 | ||||||||||||
1974 | -7.45 | -3.86 | 9.84 | 27.67 | 35.23 | 45.10 | 57.48 | 50.10 | a | 40.37 | 35.73 | a | 20.67 | 10.57 | a | 26.79 | ||||||||||
1975 | -3.39 | 0.86 | 7.42 | 25.07 | 43.10 | a | 50.60 | 58.23 | 52.29 | 41.17 | 35.26 | 19.10 | -0.13 | a | 27.46 | |||||||||||
1976 | -7.67 | a | 8.62 | 10.47 | a | 30.43 | 37.32 | 51.93 | 52.71 | 52.97 | 40.97 | 25.26 | 9.86 | a | -11.68 | 25.10 | ||||||||||
1977 | -14.55 | 5.85 | a | 23.23 | 31.89 | b | 46.75 | c | 50.03 | 54.39 | ----- | z | 44.47 | 32.79 | b | ----- | z | 0.81 | 27.57 | b | ||||||
1978 | -8.87 | -6.46 | 6.20 | f | 26.92 | e | 39.10 | 45.12 | e | 51.32 | 49.27 | a | 46.31 | a | 29.21 | b | 13.28 | a | -8.52 | b | 25.15 | a | ||||
1979 | -15.16 | -8.93 | 12.70 | a | 22.74 | c | 33.62 | g | 43.21 | b | 52.79 | b | 49.39 | 43.90 | 31.06 | 17.77 | 8.26 | 23.43 | a | |||||||
1980 | -4.35 | -1.32 | a | 4.45 | 28.68 | b | 40.90 | 47.33 | c | 52.68 | 53.29 | ----- | z | 28.17 | h | 19.20 | -1.96 | c | 23.89 | b | ||||||
1981 | -2.53 | a | 7.38 | b | 15.74 | 26.50 | r | ----- | z | ----- | z | 53.62 | g | 52.68 | 39.60 | 30.44 | o | 24.28 | a | 3.07 | b | 20.03 | e | |||
1982 | -23.10 | b | -8.80 | c | 7.65 | 23.13 | 42.21 | b | 42.07 | c | 54.35 | 49.97 | 44.64 | b | 36.86 | b | 15.61 | b | 8.70 | d | 24.44 | |||||
1983 | -1.47 | a | 8.22 | a | 19.06 | 26.07 | 33.10 | b | 48.70 | 58.10 | a | 56.20 | a | 45.52 | a | 32.47 | a | 20.31 | a | -13.17 | b | 27.76 | ||||
1984 | -12.10 | b | 11.18 | a | 8.60 | a | 26.85 | d | 35.91 | h | 47.31 | a | 47.07 | b | 50.32 | 37.40 | 35.59 | b | 13.61 | b | -1.22 | d | 24.05 | a | ||
1985 | -10.70 | d | -8.36 | c | 19.77 | 31.72 | a | 38.00 | 38.53 | 44.87 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.98 | e | ||||
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | 5.52 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 5.52 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -5.28 | -0.62 | 12.37 | 27.79 | 39.42 | 48.83 | 54.19 | 52.03 | 43.45 | 33.48 | 18.59 | 2.56 | 27.31 | |||||||||||||
S.D. | 7.08 | 6.94 | 5.57 | 3.18 | 3.18 | 3.28 | 3.07 | 2.96 | 2.80 | 3.57 | 4.71 | 6.71 | 1.92 | |||||||||||||
SKEW | -0.06 | -0.08 | 0.23 | 0.47 | -0.12 | -0.38 | -0.03 | -0.05 | -0.51 | -0.27 | -0.10 | 0.01 | 0.29 | |||||||||||||
MAX | 9.71 | 14.68 | 24.77 | 37.50 | 47.29 | 55.93 | 62.58 | 58.35 | 50.00 | 40.94 | 28.17 | 15.84 | 33.28 | |||||||||||||
MIN | -23.10 | -17.75 | 1.19 | 20.70 | 32.26 | 38.53 | 44.87 | 45.90 | 34.30 | 25.26 | 6.82 | -13.17 | 23.71 | |||||||||||||
YRS | 76 | 75 | 74 | 74 | 72 | 74 | 74 | 72 | 74 | 73 | 74 | 74 | 66 |