YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1928 | 32.68 | 33.16 | 42.85 | 47.05 | 56.53 | 65.98 | 70.84 | 66.68 | 60.53 | 53.89 | 38.77 | 30.94 | 49.99 | |||||||||||||
1929 | 31.05 | 25.93 | 40.06 | 47.85 | 56.27 | 66.45 | 69.18 | 66.66 | b | 61.43 | a | 50.00 | 34.17 | 33.32 | 48.53 | |||||||||||
1930 | 27.02 | 39.48 | 37.48 | 51.93 | 53.47 | 67.28 | 69.37 | 67.38 | b | 61.03 | 50.87 | 37.32 | 25.39 | 49.00 | ||||||||||||
1931 | 29.77 | 35.11 | 38.16 | 49.16 | a | 55.48 | d | 67.65 | 69.11 | 66.26 | 64.52 | 52.82 | 37.48 | 30.60 | 49.68 | |||||||||||
1932 | 21.08 | 38.62 | a | 38.92 | 49.65 | 56.84 | 63.57 | c | 69.17 | a | 67.80 | a | 59.88 | 48.83 | b | 39.17 | a | 24.31 | b | 48.15 | ||||||
1933 | 26.45 | 28.87 | b | 42.84 | 45.36 | a | 54.40 | b | 65.90 | 70.39 | 68.03 | 65.22 | 52.89 | c | 40.78 | 38.81 | 49.99 | |||||||||
1934 | 30.90 | 39.54 | a | 44.45 | a | 52.20 | 61.81 | 67.04 | b | 73.34 | 71.60 | 62.45 | 54.68 | c | 40.25 | 33.24 | 52.62 | |||||||||
1935 | 35.98 | 34.32 | 41.97 | a | 50.76 | a | 54.27 | a | 66.09 | a | 70.29 | 68.18 | 59.21 | a | 51.95 | 39.43 | a | 31.42 | 50.32 | |||||||
1936 | 29.92 | 36.71 | 42.18 | 50.02 | 58.89 | 67.47 | 69.29 | 69.10 | 59.60 | a | 50.30 | a | 37.91 | b | 32.44 | 50.32 | ||||||||||
1937 | 24.22 | a | 33.80 | 36.41 | b | 48.68 | 57.92 | a | 64.85 | 69.40 | 70.03 | a | 62.82 | 51.85 | 40.25 | f | 32.29 | 50.21 | a | |||||||
1938 | 31.02 | 34.54 | 41.76 | 47.72 | 54.71 | 65.82 | 68.77 | 69.89 | 60.73 | 50.66 | 36.48 | a | 34.63 | 49.73 | ||||||||||||
1939 | 28.23 | 24.36 | 41.45 | 49.82 | 58.20 | a | 66.97 | a | 69.02 | 67.16 | 63.59 | a | 49.11 | 37.17 | a | 35.39 | 49.20 | |||||||||
1940 | 29.63 | a | 37.26 | l | 43.07 | b | 48.22 | 58.52 | 64.93 | 69.65 | 66.40 | 61.98 | 52.97 | 36.62 | 34.66 | b | 51.51 | a | ||||||||
1941 | 32.68 | 37.29 | 38.73 | a | 45.31 | a | 57.90 | a | 61.83 | 68.10 | 66.87 | 60.75 | 50.81 | 40.50 | 34.29 | 49.59 | ||||||||||
1942 | 32.87 | 29.55 | 37.11 | 48.65 | 54.64 | f | 67.62 | f | 69.50 | 67.24 | 60.08 | 50.40 | 43.15 | 35.79 | 47.44 | b | ||||||||||
1943 | 33.71 | 37.11 | 40.90 | 52.22 | 58.50 | 65.45 | a | 69.35 | 70.53 | 60.65 | 49.08 | 37.67 | a | 26.23 | 50.12 | |||||||||||
1944 | 20.06 | 34.05 | a | 38.60 | 45.14 | b | 55.48 | 63.93 | 68.60 | 68.69 | 60.55 | 52.35 | 38.68 | 24.97 | 47.59 | |||||||||||
1945 | 32.23 | 38.84 | 40.50 | a | 46.18 | 58.98 | 65.28 | 70.44 | d | 70.02 | 63.24 | a | 51.95 | 41.73 | 30.79 | 50.85 | ||||||||||
1946 | 28.84 | b | 34.82 | 43.19 | r | 54.20 | 56.68 | 69.52 | 70.74 | 68.79 | 64.67 | a | 50.47 | 37.53 | a | 36.02 | b | 52.03 | a | |||||||
1947 | 29.37 | 36.91 | 40.90 | 47.92 | 59.53 | 66.24 | a | 71.82 | 68.95 | 64.27 | 54.24 | 35.30 | 30.34 | 50.48 | ||||||||||||
1948 | 28.95 | 31.90 | 34.55 | 52.92 | 58.53 | a | 66.02 | 70.60 | 69.35 | 63.32 | 50.35 | 36.07 | 35.68 | 49.85 | ||||||||||||
1949 | 23.48 | 32.30 | 41.48 | 49.17 | a | 57.73 | 65.57 | 69.53 | 67.02 | 63.09 | a | 49.06 | 44.87 | 30.98 | 49.52 | |||||||||||
1950 | 34.50 | 38.55 | 42.57 | a | 51.50 | 57.82 | 67.15 | d | 68.81 | b | 66.40 | b | 59.52 | 58.09 | c | 44.15 | 38.47 | 52.29 | ||||||||
1951 | 31.40 | 35.73 | 40.13 | 47.76 | a | 60.00 | e | 65.68 | 73.95 | 68.87 | 63.45 | 51.37 | 37.00 | 33.32 | 50.72 | |||||||||||
1952 | 35.15 | 33.34 | 37.39 | 48.50 | b | 59.56 | 70.58 | 71.03 | 71.90 | a | 62.57 | 53.63 | 35.37 | 29.39 | 50.70 | |||||||||||
1953 | 39.09 | b | 31.68 | 43.82 | 48.70 | 54.30 | a | 69.77 | 71.94 | 69.45 | 63.28 | 50.94 | 41.67 | 29.90 | 51.21 | |||||||||||
1954 | 34.05 | 41.59 | 40.13 | 54.82 | 59.31 | b | 67.83 | a | 72.68 | 67.98 | 64.54 | b | 52.00 | p | 43.48 | 33.84 | 52.75 | a | ||||||||
1955 | 30.60 | 30.64 | 41.97 | 48.97 | 57.74 | 66.02 | 68.26 | 68.25 | a | 63.14 | a | 53.31 | 39.80 | 35.13 | 50.32 | |||||||||||
1956 | 36.32 | 29.66 | 42.53 | 47.17 | 60.52 | 71.02 | 69.56 | 67.90 | 64.18 | 52.50 | 35.63 | 31.58 | 50.71 | |||||||||||||
1957 | 35.60 | 41.85 | a | 40.63 | 47.03 | 54.27 | 67.47 | 71.63 | 67.61 | 59.75 | 49.89 | 35.22 | 34.79 | 50.48 | ||||||||||||
1958 | 29.29 | 38.11 | 36.02 | 45.52 | 58.66 | 67.63 | 69.61 | 68.98 | 60.90 | a | 49.22 | a | 39.55 | 36.13 | 49.97 | |||||||||||
1959 | 32.26 | 33.93 | 38.66 | 49.20 | 56.42 | 67.24 | a | 69.89 | 68.13 | 61.66 | a | 49.85 | 38.17 | 31.82 | 49.77 | |||||||||||
1960 | 28.29 | 31.10 | 42.84 | 49.45 | 55.81 | 66.90 | 68.50 | 68.82 | 62.52 | 49.34 | 40.37 | 24.95 | 49.07 | |||||||||||||
1961 | 26.15 | 35.75 | 42.29 | 48.38 | 58.63 | 66.40 | 70.23 | 67.23 | 59.25 | 50.71 | 38.30 | 31.47 | 49.56 | |||||||||||||
1962 | 30.19 | 39.21 | 35.60 | 51.23 | 56.92 | 64.50 | 68.94 | 69.69 | 62.77 | 52.61 | 42.55 | 34.16 | 50.70 | |||||||||||||
1963 | 25.74 | 35.05 | 39.82 | 49.95 | 59.53 | 64.73 | 71.87 | 68.65 | 63.98 | 55.24 | 41.08 | 31.40 | 50.59 | |||||||||||||
1964 | ----- | z | 25.43 | 36.82 | 45.03 | 57.76 | 66.02 | 72.60 | 69.94 | 63.20 | 53.60 | 39.80 | 33.85 | 51.28 | a | |||||||||||
1965 | 35.85 | 32.62 | 37.23 | 49.08 | 56.52 | 64.02 | 70.79 | 67.00 | 60.67 | 52.11 | 44.28 | 32.61 | 50.23 | |||||||||||||
1966 | 28.32 | 30.07 | 42.50 | 49.58 | 59.53 | 65.83 | 73.16 | 68.10 | 63.03 | 51.48 | 44.43 | 32.89 | 50.74 | |||||||||||||
1967 | 31.31 | 36.48 | 47.35 | 50.67 | 57.44 | 65.30 | 71.87 | 65.52 | 60.22 | 52.68 | 42.92 | 27.24 | 50.75 | |||||||||||||
1968 | 30.95 | 37.31 | 39.84 | 46.07 | 56.56 | 66.28 | 68.97 | 66.47 | 60.68 | 52.74 | 40.10 | 31.06 | 49.75 | |||||||||||||
1969 | 38.40 | 35.29 | 35.76 | 51.65 | 57.85 | a | 64.93 | 71.89 | 71.31 | 62.67 | 49.82 | a | 39.05 | 34.03 | a | 51.05 | ||||||||||
1970 | 29.92 | 38.39 | a | 37.50 | 45.60 | ----- | z | 64.57 | 71.19 | 69.03 | a | 61.75 | 48.26 | 41.62 | 34.92 | 49.34 | a | |||||||||
1971 | 32.15 | 34.52 | 43.26 | 46.80 | 55.81 | 66.98 | 70.52 | 66.03 | 60.02 | 49.84 | 40.05 | 27.97 | 49.49 | |||||||||||||
1972 | 34.19 | 39.78 | 47.89 | 50.73 | 56.55 | a | 66.62 | 70.45 | 66.55 | 60.90 | 52.45 | a | 33.93 | 31.03 | 50.92 | |||||||||||
1973 | 28.19 | 33.43 | 39.27 | 42.50 | 55.48 | 63.87 | 68.31 | 68.05 | a | 60.43 | 52.24 | 43.08 | 34.24 | 49.09 | ||||||||||||
1974 | 30.76 | 32.11 | a | 46.71 | 47.31 | c | 60.93 | b | 69.17 | 69.77 | c | 66.23 | 60.78 | 52.10 | a | 39.78 | 28.34 | 50.33 | ||||||||
1975 | 29.61 | d | 35.10 | c | 38.20 | a | 45.17 | 53.24 | 65.60 | 67.92 | 68.50 | 59.53 | a | 51.02 | a | 39.02 | 32.97 | 48.82 | ||||||||
1976 | 30.43 | a | 40.45 | 40.94 | 48.38 | 56.17 | b | 66.25 | 68.77 | 67.32 | ----- | z | ----- | z | ----- | z | ----- | z | 52.34 | d | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.60 | 34.67 | 40.46 | 48.71 | 57.32 | 66.30 | 70.20 | 68.21 | 61.85 | 51.59 | 39.39 | 32.08 | 50.07 | |||||||||||||
S.D. | 3.97 | 4.07 | 3.03 | 2.55 | 2.01 | 1.78 | 1.48 | 1.50 | 1.69 | 1.94 | 2.85 | 3.40 | 0.97 | |||||||||||||
SKEW | -0.35 | -0.51 | 0.30 | 0.13 | -0.06 | 0.47 | 0.67 | 0.47 | 0.17 | 0.77 | 0.10 | -0.54 | 0.02 | |||||||||||||
MAX | 39.09 | 41.85 | 47.89 | 54.82 | 61.81 | 71.02 | 73.95 | 71.90 | 65.22 | 58.09 | 44.87 | 38.81 | 52.62 | |||||||||||||
MIN | 20.06 | 24.36 | 34.55 | 42.50 | 53.24 | 61.83 | 67.92 | 65.52 | 59.21 | 48.26 | 33.93 | 24.31 | 47.59 | |||||||||||||
YRS | 48 | 48 | 48 | 49 | 47 | 48 | 49 | 49 | 48 | 47 | 47 | 48 | 41 |