YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.90 | ----- | z | ----- | z | ----- | z | 51.24 | a | 34.67 | a | 48.94 | i | |
1924 | 33.29 | g | ----- | 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 | 59.44 | f | 50.77 | 36.97 | a | 24.10 | 18.71 | 32.64 | h | |||
1959 | 12.45 | 20.57 | 22.58 | 31.80 | 43.74 | 53.53 | 56.77 | 58.58 | 46.53 | 34.61 | 21.45 | a | 17.81 | 35.04 | ||||||||||||
1960 | 11.74 | 7.38 | 21.87 | 36.93 | 43.48 | 53.07 | 56.90 | 57.03 | 50.67 | 38.10 | 27.17 | 18.23 | 35.21 | |||||||||||||
1961 | 16.10 | 20.25 | 25.94 | 30.73 | 43.48 | 52.80 | 56.84 | 57.35 | 44.70 | 33.35 | 25.90 | 13.81 | 35.10 | |||||||||||||
1962 | 7.65 | 21.89 | 18.58 | 37.23 | 44.48 | 50.63 | 57.71 | 55.06 | 50.47 | 41.35 | 27.27 | 19.45 | 35.98 | |||||||||||||
1963 | 4.94 | 23.00 | 25.00 | 37.07 | 46.30 | a | 56.23 | 61.35 | 57.84 | 53.17 | 45.00 | 27.80 | 12.97 | 37.56 | ||||||||||||
1964 | 15.65 | 14.90 | 23.10 | 33.40 | 44.94 | 52.67 | 62.00 | 56.32 | 50.87 | 36.00 | 29.45 | a | 20.10 | 36.61 | ||||||||||||
1965 | 20.32 | 16.32 | 16.19 | 37.23 | 45.00 | 51.90 | 58.35 | 54.94 | 46.10 | 36.00 | 30.27 | 21.52 | 36.18 | |||||||||||||
1966 | 5.71 | 13.14 | 26.26 | 31.37 | 44.03 | 53.63 | 61.84 | 56.35 | 49.97 | 35.23 | 27.87 | 13.61 | 34.92 | |||||||||||||
1967 | 19.55 | 20.00 | 26.93 | a | 36.20 | 40.19 | 52.30 | 57.74 | 54.90 | 47.67 | 36.65 | 24.53 | 14.68 | 35.95 | ||||||||||||
1968 | 19.03 | 21.34 | 26.06 | 32.40 | 40.93 | a | 53.97 | 58.16 | 55.35 | 46.87 | 38.94 | 26.69 | a | 15.67 | a | 36.28 | ||||||||||
1969 | 20.40 | a | 21.32 | 16.45 | 39.63 | 46.58 | 49.47 | 59.90 | 59.81 | 50.53 | 32.93 | a | 24.90 | 18.58 | 36.71 | |||||||||||
1970 | 13.90 | 19.21 | 20.87 | 30.40 | 44.97 | 49.77 | 59.61 | 58.71 | 46.47 | 34.10 | 27.80 | 17.81 | 35.30 | |||||||||||||
1971 | 18.77 | 18.11 | 23.26 | 33.97 | 40.45 | 52.93 | 57.30 | a | 54.94 | 44.70 | 34.74 | 27.13 | 20.58 | 35.57 | ||||||||||||
1972 | 15.00 | a | 21.83 | 30.29 | 33.90 | 42.71 | 53.23 | 57.70 | a | 56.61 | 50.76 | a | 39.43 | a | 18.60 | 13.94 | 36.17 | |||||||||
1973 | 17.48 | 22.07 | 27.10 | 27.86 | b | 43.10 | 50.23 | 55.90 | 54.87 | 47.10 | a | ----- | z | 26.83 | 17.74 | 35.48 | a | |||||||||
1974 | 12.13 | 19.07 | 27.97 | a | 31.00 | 44.29 | 49.60 | 56.93 | a | 52.74 | 45.40 | 38.58 | 25.40 | 12.81 | 34.66 | |||||||||||
1975 | 16.57 | a | 16.64 | 22.90 | 31.40 | 40.03 | 51.00 | 56.48 | 56.52 | 43.87 | 32.71 | 16.13 | 18.83 | a | 33.59 | |||||||||||
1976 | 14.97 | 22.55 | 22.45 | 37.13 | 42.74 | 53.03 | a | 58.45 | 55.81 | 47.37 | 32.68 | 20.20 | 18.68 | 35.51 | ||||||||||||
1977 | 10.55 | 16.96 | 23.52 | 33.93 | a | 46.81 | 53.87 | 57.87 | a | 55.45 | 48.40 | 29.68 | 20.50 | 14.84 | 34.36 | |||||||||||
1978 | 6.87 | 12.04 | 24.93 | a | 30.60 | 41.60 | a | 56.23 | 61.04 | f | 55.58 | ----- | z | 30.42 | 18.93 | 5.52 | 28.27 | b | ||||||||
1979 | ----- | z | 13.29 | ----- | z | ----- | z | 37.79 | c | 45.45 | j | ----- | z | ----- | z | 40.67 | ----- | z | 13.92 | f | 8.82 | t | 30.58 | i | ||
1980 | 1.70 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.86 | a | ----- | z | ----- | z | ----- | z | 22.28 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 13.40 | 18.19 | 23.61 | 33.71 | 43.22 | 52.51 | 58.44 | 56.24 | 47.54 | 35.87 | 25.92 | 17.30 | 35.59 | |||||||||||||
S.D. | 5.46 | 4.13 | 3.66 | 3.14 | 2.36 | 1.95 | 1.86 | 1.65 | 3.13 | 3.69 | 6.82 | 5.27 | 0.95 | |||||||||||||
SKEW | -0.56 | -0.97 | -0.47 | 0.13 | -0.49 | 0.13 | 0.73 | 0.29 | -0.25 | 0.55 | 2.20 | 1.14 | -0.04 | |||||||||||||
MAX | 20.40 | 23.00 | 30.29 | 39.63 | 46.81 | 56.23 | 62.00 | 59.81 | 53.17 | 45.00 | 51.24 | 34.67 | 37.56 | |||||||||||||
MIN | 1.70 | 7.38 | 16.19 | 27.86 | 37.79 | 49.47 | 55.90 | 52.74 | 40.67 | 29.68 | 16.13 | 5.52 | 33.59 | |||||||||||||
YRS | 21 | 21 | 20 | 20 | 21 | 20 | 20 | 20 | 22 | 20 | 22 | 22 | 18 |