YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.15 | ----- | z | ----- | z | ----- | z | ----- | z | 60.15 | k | |
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 | 30.63 | 30.63 | k | |
1943 | 26.34 | 28.14 | 34.65 | a | 45.45 | 49.18 | 53.95 | 63.26 | 60.42 | 56.07 | 44.17 | b | 31.68 | 23.38 | a | 43.06 | ||||||||||
1944 | 18.68 | a | 22.46 | a | 28.13 | 34.86 | a | 46.56 | 52.32 | 61.76 | 62.08 | 56.25 | 44.32 | 28.35 | 24.38 | b | 40.01 | |||||||||
1945 | 23.26 | 26.86 | 25.55 | 34.23 | 47.81 | b | 53.38 | b | 62.47 | a | 61.03 | 53.37 | 44.02 | 29.40 | 21.10 | a | 40.21 | |||||||||
1946 | 19.37 | a | 24.54 | 32.61 | 43.17 | a | 46.93 | a | 58.28 | 63.52 | 61.24 | 53.87 | 37.94 | 26.43 | 25.02 | 41.08 | ||||||||||
1947 | 19.80 | c | 28.89 | j | 33.97 | 38.92 | 50.23 | 53.79 | a | 62.18 | a | 58.97 | 56.72 | 45.15 | a | 24.87 | 19.87 | 42.22 | a | |||||||
1948 | 22.71 | 21.50 | 22.50 | a | 38.15 | 48.18 | 55.75 | 64.61 | 63.10 | 52.80 | 41.87 | 26.27 | 20.87 | 39.86 | ||||||||||||
1949 | 11.82 | 14.95 | 27.66 | 40.28 | 45.95 | 54.05 | 61.74 | 60.81 | 57.18 | 41.03 | 39.35 | 21.61 | 39.70 | |||||||||||||
1950 | 18.57 | a | 26.36 | 32.03 | 42.02 | 45.94 | 56.17 | 62.71 | 60.84 | 52.40 | 47.73 | 36.33 | 32.62 | a | 42.81 | |||||||||||
1951 | 23.00 | 26.12 | 30.31 | 40.03 | 47.21 | 54.79 | b | 64.31 | 59.67 | a | 54.80 | 40.75 | a | 28.77 | 19.85 | 40.80 | ||||||||||
1952 | 17.03 | 20.66 | 23.65 | 37.92 | 48.06 | 54.42 | 61.81 | 61.55 | 55.15 | 47.24 | 25.15 | 19.55 | 39.35 | |||||||||||||
1953 | 28.53 | 24.57 | 30.89 | 38.27 | b | 41.26 | 56.23 | 64.32 | 59.02 | 55.48 | 42.15 | 34.45 | 24.37 | 41.63 | ||||||||||||
1954 | 24.27 | a | 31.29 | 28.89 | 44.15 | 50.79 | 56.15 | 64.10 | 59.52 | 53.35 | 44.77 | a | 35.16 | a | 21.45 | 42.82 | ||||||||||
1955 | 16.27 | 16.21 | 27.63 | 35.03 | 44.98 | 52.78 | a | 60.63 | 61.05 | a | 53.83 | 44.53 | 30.18 | 26.23 | 39.11 | |||||||||||
1956 | 27.76 | 19.62 | 32.40 | 38.00 | 47.52 | 58.37 | 61.98 | 58.21 | 56.00 | a | 41.90 | 28.57 | a | 26.18 | 41.38 | |||||||||||
1957 | 20.45 | a | 29.77 | 31.32 | 36.72 | 42.47 | 57.62 | 62.18 | 60.15 | 52.52 | 40.63 | 25.83 | 25.77 | 40.45 | ||||||||||||
1958 | 22.47 | a | 28.14 | 25.11 | 34.83 | 50.32 | a | 58.27 | 62.81 | 64.21 | 53.50 | 43.36 | b | 31.09 | a | 31.60 | a | 42.14 | ||||||||
1959 | 24.52 | a | 23.39 | a | 32.55 | 41.83 | 46.44 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.57 | h | ||
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.14 | c | 25.18 | 16.20 | d | 26.18 | i | |
1972 | 20.41 | c | 25.24 | b | 36.87 | a | 39.38 | a | 45.35 | 55.25 | b | 62.61 | 57.92 | 50.04 | b | 39.73 | 25.60 | f | 16.07 | a | 40.81 | a | ||||
1973 | 14.13 | 20.45 | 24.23 | g | 33.08 | 46.58 | a | 54.30 | 59.95 | 60.93 | d | 49.48 | 41.06 | 29.10 | 23.40 | 39.32 | a | |||||||||
1974 | 16.56 | 18.77 | 34.13 | 35.38 | 49.69 | 59.22 | c | 59.93 | a | 58.00 | a | 52.38 | 41.92 | 28.81 | a | 18.47 | a | 39.44 | ||||||||
1975 | 20.95 | b | 19.43 | a | 25.79 | 29.37 | 41.27 | 51.98 | c | 60.40 | 56.63 | 51.22 | 38.90 | 27.97 | 24.52 | d | 37.37 | |||||||||
1976 | 20.98 | a | 26.38 | 24.15 | 35.50 | 47.29 | 53.22 | 61.48 | b | 56.52 | 50.97 | 38.10 | 31.65 | 22.71 | 39.08 | |||||||||||
1977 | 18.92 | a | 26.30 | 25.31 | 38.73 | 42.50 | b | 57.00 | 61.47 | 60.21 | 52.32 | 42.39 | 32.72 | 28.15 | 40.50 | |||||||||||
1978 | 20.92 | 23.00 | a | 31.53 | 37.53 | 43.48 | 55.43 | 60.97 | 58.05 | a | 49.57 | 44.92 | 28.83 | 16.74 | 39.25 | |||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.74 | 23.66 | 29.46 | 38.04 | 46.50 | 55.33 | 62.23 | 60.01 | 53.45 | 42.32 | 29.83 | 23.23 | 40.50 | |||||||||||||
S.D. | 4.04 | 4.23 | 4.01 | 3.73 | 2.81 | 2.08 | 1.37 | 1.88 | 2.27 | 2.81 | 3.81 | 4.50 | 1.48 | |||||||||||||
SKEW | -0.07 | -0.27 | -0.07 | -0.04 | -0.42 | 0.24 | 0.09 | 0.05 | -0.12 | -0.01 | 0.79 | 0.36 | 0.10 | |||||||||||||
MAX | 28.53 | 31.29 | 36.87 | 45.45 | 50.79 | 59.22 | 64.61 | 64.21 | 57.18 | 47.73 | 39.35 | 32.62 | 43.06 | |||||||||||||
MIN | 11.82 | 14.95 | 22.50 | 29.37 | 41.26 | 51.98 | 59.93 | 56.52 | 49.48 | 37.14 | 24.87 | 16.07 | 37.37 | |||||||||||||
YRS | 24 | 23 | 23 | 24 | 23 | 23 | 23 | 24 | 23 | 24 | 23 | 25 | 20 |