YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 60.58 | k | 58.93 | 67.05 | l | 64.50 | 58.60 | a | 41.21 | 27.10 | 22.10 | 45.41 | f | |||||
1937 | 11.00 | 17.20 | a | 22.21 | 37.93 | 53.19 | b | 61.50 | 67.93 | a | 70.10 | 56.22 | 40.98 | 30.17 | 16.11 | 40.38 | ||||||||||
1938 | 12.42 | 19.12 | 31.15 | 41.15 | 52.56 | 60.55 | 66.35 | a | 67.16 | 55.45 | 51.50 | b | 34.69 | a | 21.80 | c | 42.83 | |||||||||
1939 | 17.50 | 11.11 | 24.02 | a | 38.78 | 56.90 | 63.50 | 67.03 | 64.53 | 57.83 | 44.10 | 33.48 | 26.60 | 42.12 | ||||||||||||
1940 | 10.95 | 19.33 | 20.81 | 36.67 | 50.15 | 61.13 | 65.89 | 63.55 | a | 58.65 | 46.79 | 31.00 | a | 21.77 | 40.56 | |||||||||||
1941 | 16.60 | 17.46 | 21.85 | 47.36 | a | 57.77 | 64.25 | 67.34 | 63.52 | 59.25 | 45.82 | 34.52 | 26.29 | 43.50 | ||||||||||||
1942 | 17.62 | a | 17.35 | a | 30.98 | a | 47.95 | 52.52 | 62.22 | 65.50 | 64.27 | 55.30 | 46.65 | 31.87 | 16.60 | 42.40 | ||||||||||
1943 | 11.77 | 17.29 | 20.90 | 37.90 | 52.52 | 65.40 | 69.02 | 65.79 | 53.07 | 46.94 | 29.70 | 21.45 | 40.98 | |||||||||||||
1944 | 25.03 | 20.19 | 23.61 | 37.63 | 57.37 | 63.97 | 65.95 | 65.34 | 57.30 | 46.90 | 36.20 | 17.84 | 43.11 | |||||||||||||
1945 | 10.08 | 16.82 | 36.21 | 43.83 | 50.95 | 58.88 | 64.10 | 65.23 | 56.00 | 44.23 | 32.81 | a | 16.27 | a | 41.28 | |||||||||||
1946 | 17.24 | 15.80 | 38.95 | 45.07 | 52.56 | 62.08 | 66.68 | 62.44 | 55.95 | 50.08 | 33.78 | 21.66 | b | 43.52 | ||||||||||||
1947 | 17.84 | 17.46 | c | 26.52 | 38.60 | 48.62 | a | 58.46 | b | 65.18 | 69.83 | a | 55.69 | a | 53.73 | e | 27.40 | a | 17.67 | b | 41.42 | |||||
1948 | 4.98 | a | 12.29 | 22.37 | 41.04 | c | 50.29 | 59.23 | 65.58 | a | 64.56 | 58.37 | 43.50 | 34.42 | 18.60 | 39.60 | ||||||||||
1949 | 17.81 | 13.89 | a | 24.61 | 43.40 | 52.34 | 65.03 | 66.29 | 65.06 | 51.72 | 46.71 | 29.93 | 18.48 | 41.27 | ||||||||||||
1950 | 9.40 | 12.36 | 20.31 | 29.83 | 49.48 | 59.97 | 61.92 | 56.94 | 53.97 | 47.55 | 25.22 | 12.53 | 36.62 | |||||||||||||
1951 | 8.90 | b | 14.05 | 23.88 | c | 38.57 | 55.24 | 57.50 | 64.13 | 59.56 | 51.72 | 43.15 | 23.07 | 16.42 | 38.01 | |||||||||||
1952 | 13.48 | 17.64 | 22.26 | 42.67 | 50.65 | 61.00 | b | 66.25 | a | 61.37 | 54.62 | a | 37.77 | a | 31.33 | 23.94 | 40.25 | |||||||||
1953 | 17.26 | 15.54 | 27.32 | 36.17 | 51.60 | 61.50 | 64.60 | 64.94 | 55.20 | 48.73 | 35.05 | 21.10 | 41.58 | |||||||||||||
1954 | 10.23 | 23.27 | 21.39 | 38.85 | 45.82 | 62.77 | 63.32 | 60.66 | 51.65 | 43.55 | 32.73 | 17.48 | 39.31 | |||||||||||||
1955 | 11.10 | 12.25 | 20.47 | 44.87 | 54.58 | e | 61.07 | 69.06 | 65.87 | 53.77 | 46.21 | 25.82 | 12.94 | 39.83 | ||||||||||||
1956 | 15.50 | 15.57 | 19.97 | a | 36.02 | 49.71 | 62.22 | 60.92 | 62.56 | 51.45 | 48.89 | 29.58 | 18.61 | 39.25 | ||||||||||||
1957 | 5.32 | 15.21 | 24.55 | 40.55 | 49.97 | 59.98 | 66.18 | 61.66 | 52.33 | 43.71 | 29.18 | 18.16 | 38.90 | |||||||||||||
1958 | 16.84 | 11.89 | 27.58 | 40.85 | 49.31 | 54.90 | 64.13 | 62.76 | 54.80 | 46.19 | 31.58 | 6.73 | 38.96 | |||||||||||||
1959 | 3.50 | 8.02 | 22.98 | a | 38.97 | 54.85 | 62.87 | 65.16 | 67.19 | 56.35 | 40.45 | 20.90 | 23.36 | b | 38.72 | |||||||||||
1960 | 12.97 | 14.95 | 13.69 | 38.92 | 51.56 | 58.59 | a | 63.34 | 64.87 | 55.27 | 43.97 | 32.70 | 14.11 | 38.74 | ||||||||||||
1961 | 9.81 | 19.79 | 26.53 | 36.90 | 47.42 | 59.63 | 64.45 | 63.84 | 55.57 | 45.61 | 29.93 | 14.06 | 39.46 | |||||||||||||
1962 | 8.06 | 7.34 | 26.42 | 38.30 | 55.50 | 59.85 | 62.10 | 62.52 | 51.37 | 45.71 | 30.93 | 16.18 | 38.69 | |||||||||||||
1963 | 2.26 | 5.00 | 24.42 | 40.72 | 48.65 | 62.73 | 66.15 | 61.21 | 53.13 | 51.63 | 34.45 | 11.08 | 38.45 | |||||||||||||
1964 | 17.31 | 13.10 | 20.77 | 38.78 | 55.10 | 59.80 | 66.26 | 58.53 | 51.87 | 41.48 | 32.03 | a | 11.77 | 38.90 | ||||||||||||
1965 | 7.19 | 6.84 | 18.19 | 35.62 | 53.92 | a | 57.68 | 61.02 | 61.39 | 50.67 | 43.94 | 30.38 | 22.68 | 37.46 | ||||||||||||
1966 | 6.02 | 16.71 | 28.45 | 36.53 | 46.32 | 63.23 | 68.61 | 61.58 | 54.15 | 41.73 | 28.67 | 17.34 | 39.11 | |||||||||||||
1967 | 12.68 | 5.59 | 23.26 | 38.27 | 45.45 | 60.58 | 62.69 | 58.73 | 53.50 | 41.52 | 26.12 | 17.18 | 37.13 | |||||||||||||
1968 | 10.53 | 11.12 | 30.00 | 41.12 | 48.61 | 59.97 | 63.42 | 62.82 | 56.78 | 46.52 | 31.13 | 16.19 | 39.85 | |||||||||||||
1969 | 13.68 | 14.66 | 20.08 | 40.75 | 51.55 | 54.03 | 64.24 | 66.40 | 54.58 | 40.32 | 29.10 | 18.77 | 39.01 | |||||||||||||
1970 | 5.90 | 9.46 | a | 21.31 | 40.33 | 49.82 | 61.87 | 67.23 | 63.27 | 54.80 | 44.87 | 30.03 | 15.74 | 38.72 | ||||||||||||
1971 | 2.32 | 11.21 | 20.03 | 36.80 | 48.00 | 63.83 | 61.35 | 61.15 | 57.23 | 51.02 | 30.80 | 18.29 | 38.50 | |||||||||||||
1972 | 3.03 | 7.59 | 18.92 | 33.27 | 55.69 | 59.32 | 63.87 | 62.95 | 52.22 | 39.97 | 29.15 | 12.65 | 36.55 | |||||||||||||
1973 | 14.98 | 14.41 | 34.18 | 39.22 | 48.44 | 61.72 | 65.52 | 65.61 | 54.62 | 48.76 | 30.48 | 14.92 | 41.07 | |||||||||||||
1974 | 10.61 | 9.16 | 24.32 | 40.02 | 48.65 | a | 57.60 | 66.61 | 62.90 | 49.40 | 42.73 | 31.13 | 22.11 | 38.77 | ||||||||||||
1975 | 11.76 | 15.55 | 20.15 | 33.48 | 56.95 | 62.55 | 68.13 | 64.08 | 51.28 | 45.85 | 34.23 | 15.97 | 40.00 | |||||||||||||
1976 | 6.82 | 20.67 | 23.77 | 42.15 | 49.85 | 64.03 | 66.13 | 63.66 | 52.70 | 38.97 | 22.42 | 5.18 | 38.03 | |||||||||||||
1977 | 1.15 | 14.89 | 30.60 | 43.87 | 60.56 | 59.50 | 68.90 | 60.13 | 55.12 | 43.00 | 29.93 | 15.84 | 40.29 | |||||||||||||
1978 | 9.03 | 8.55 | 21.89 | 36.35 | 54.66 | 60.58 | 64.21 | 64.74 | 57.75 | 44.77 | 30.08 | 13.56 | 38.85 | |||||||||||||
1979 | 3.81 | 4.96 | a | 23.97 | a | 35.33 | 48.29 | 60.13 | 65.90 | 61.88 | c | 55.65 | 41.65 | 28.37 | 22.63 | 37.71 | ||||||||||
1980 | 11.52 | 10.07 | 21.79 | ----- | z | 56.02 | 58.73 | b | 66.34 | 64.62 | a | 54.03 | 39.60 | 30.98 | 14.94 | 38.97 | a | |||||||||
1981 | 8.19 | 18.11 | 29.26 | 41.30 | 50.66 | 61.24 | a | 66.08 | e | 63.40 | p | 53.70 | 41.26 | 35.65 | 17.90 | 38.49 | a | |||||||||
1982 | 1.32 | a | 8.52 | a | 22.66 | 35.52 | 57.78 | a | 55.78 | 67.05 | 61.37 | 53.45 | 45.35 | 29.18 | 23.48 | 38.46 | ||||||||||
1983 | 15.23 | 21.50 | 27.77 | 37.08 | 47.23 | 61.57 | 71.53 | 68.94 | 57.47 | 43.65 | 32.30 | 6.50 | 40.90 | |||||||||||||
1984 | 4.08 | 23.62 | 18.69 | 42.65 | 48.76 | 63.90 | 65.11 | 67.21 | 52.62 | 47.45 | 29.57 | 17.23 | 40.07 | |||||||||||||
1985 | 8.03 | b | 10.04 | 28.53 | 41.88 | 54.87 | 58.08 | 64.24 | 61.94 | 54.37 | 43.02 | 24.70 | 6.61 | 38.03 | ||||||||||||
1986 | 10.55 | 10.73 | 24.23 | ----- | z | 55.77 | 59.32 | 67.63 | 60.44 | 54.78 | 42.35 | 25.42 | 20.02 | 39.20 | a | |||||||||||
1987 | 15.89 | 20.46 | 29.08 | 44.05 | 54.85 | 65.65 | 68.71 | 63.98 | 55.88 | 38.42 | 31.87 | 22.79 | 42.64 | |||||||||||||
1988 | 7.32 | 7.74 | 23.13 | a | 40.05 | 55.89 | 64.90 | 69.05 | 67.11 | 54.68 | 38.19 | 32.25 | 15.13 | 39.62 | ||||||||||||
1989 | 15.53 | 6.20 | a | 17.38 | a | 37.87 | k | 52.68 | n | 61.50 | n | 68.09 | o | 65.44 | m | 55.82 | m | 44.21 | n | 23.69 | l | 5.47 | o | 13.04 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 10.75 | 13.77 | 24.31 | 39.48 | 52.03 | 60.86 | 65.66 | 63.60 | 54.60 | 44.50 | 30.29 | 17.27 | 39.78 | |||||||||||||
S.D. | 5.27 | 4.90 | 4.80 | 3.56 | 3.58 | 2.59 | 2.26 | 2.75 | 2.27 | 3.65 | 3.36 | 4.83 | 1.75 | |||||||||||||
SKEW | 0.12 | -0.01 | 0.80 | 0.05 | 0.19 | -0.32 | -0.03 | 0.12 | -0.01 | 0.31 | -0.70 | -0.48 | 0.42 | |||||||||||||
MAX | 25.03 | 23.62 | 38.95 | 47.95 | 60.56 | 65.65 | 71.53 | 70.10 | 59.25 | 53.73 | 36.20 | 26.60 | 43.52 | |||||||||||||
MIN | 1.15 | 4.96 | 13.69 | 29.83 | 45.45 | 54.03 | 60.92 | 56.94 | 49.40 | 37.77 | 20.90 | 5.18 | 36.55 | |||||||||||||
YRS | 53 | 53 | 53 | 50 | 52 | 53 | 52 | 52 | 53 | 53 | 53 | 53 | 49 |