YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | ----- | z | 47.41 | n | 54.77 | 62.53 | a | 70.91 | a | 76.48 | 74.32 | 64.33 | 52.37 | 43.93 | a | 37.85 | 59.72 | c | ||||||
1940 | 32.69 | 36.40 | 45.74 | 52.22 | 62.95 | 72.62 | a | 76.55 | 74.27 | 64.00 | a | ----- | z | 35.43 | i | 32.53 | 55.00 | b | ||||||||
1941 | 31.11 | 37.79 | 41.81 | 43.63 | 58.44 | 63.84 | a | 72.37 | a | 70.21 | 60.40 | 47.65 | 39.52 | a | 33.42 | g | 51.52 | a | ||||||||
1942 | 31.02 | b | 31.33 | a | 40.90 | a | 51.13 | 57.82 | 69.92 | 74.45 | 72.77 | 65.85 | 56.00 | 44.20 | 37.61 | 52.75 | ||||||||||
1943 | 35.31 | 39.77 | 45.31 | 55.68 | 61.45 | 67.48 | 76.76 | 73.26 | 68.87 | 55.36 | b | 42.18 | 31.78 | b | 54.43 | |||||||||||
1944 | 30.02 | 33.48 | 39.71 | 46.73 | 58.05 | 64.22 | 73.92 | a | 75.06 | 68.90 | 57.55 | 39.35 | 34.84 | 51.82 | ||||||||||||
1945 | 33.61 | 38.54 | a | 39.40 | 48.98 | a | 60.24 | 67.68 | 68.30 | c | 64.02 | f | ----- | z | 53.29 | l | 40.87 | 32.58 | a | 47.80 | c | |||||
1946 | 34.26 | 41.11 | 50.13 | a | 58.88 | 64.18 | 74.47 | 77.60 | 75.32 | 68.12 | 49.73 | 38.72 | 36.82 | 55.78 | ||||||||||||
1947 | 30.61 | 41.61 | 46.53 | 51.78 | 65.02 | 68.14 | b | 76.20 | a | 72.25 | e | 72.62 | r | 55.46 | e | 37.03 | 32.25 | a | 52.44 | a | ||||||
1948 | 33.39 | 33.24 | 35.65 | a | 51.72 | 61.00 | c | 68.43 | 75.50 | b | 72.56 | 68.43 | 56.05 | 38.02 | 31.40 | 52.12 | ||||||||||
1949 | 21.13 | 25.95 | 41.42 | 53.93 | 58.26 | 58.69 | v | 72.09 | o | 74.88 | r | 68.77 | 52.66 | 50.37 | 30.44 | 44.77 | c | |||||||||
1950 | 29.29 | 40.41 | 43.82 | a | 54.48 | 58.66 | 69.50 | 74.63 | 71.08 | m | 57.94 | f | ----- | z | ----- | z | 39.84 | 51.33 | d | |||||||
1951 | 30.05 | 37.25 | 40.45 | 50.88 | 59.47 | b | 74.47 | k | 78.73 | 72.37 | 68.27 | 53.84 | 38.68 | 30.97 | 51.00 | a | ||||||||||
1952 | 30.34 | 36.03 | 37.50 | 51.55 | 62.05 | 68.50 | 76.23 | 75.35 | 67.92 | 65.68 | q | 35.09 | c | 30.18 | 51.89 | a | ||||||||||
1953 | 38.23 | 36.41 | 43.06 | 49.92 | 53.79 | 69.45 | a | 76.28 | a | 71.39 | 68.40 | 53.84 | 42.32 | b | 32.23 | 52.94 | ||||||||||
1954 | 32.98 | 42.96 | a | 40.18 | 56.28 | 63.37 | 68.67 | a | 76.32 | 71.13 | 64.17 | a | 54.85 | 44.30 | 29.22 | a | 53.70 | |||||||||
1955 | 27.23 | a | 28.09 | 43.02 | 48.15 | 58.02 | 67.63 | 73.44 | 76.83 | s | 61.81 | q | 58.02 | 44.23 | 41.26 | b | 48.91 | b | ||||||||
1956 | 39.92 | 32.78 | 45.40 | 48.93 | 60.97 | 65.55 | 67.48 | a | 64.18 | 64.70 | 53.16 | 38.17 | 31.74 | 51.08 | ||||||||||||
1957 | 30.76 | 41.16 | 42.13 | a | 46.59 | a | 52.65 | ----- | z | 74.56 | 73.36 | b | 64.17 | g | 51.31 | 35.85 | 32.89 | 48.13 | b | |||||||
1958 | 33.06 | 40.82 | 37.81 | ----- | z | 64.50 | 72.47 | 76.06 | 76.50 | b | 64.32 | 55.29 | 40.32 | 40.24 | 54.67 | a | ||||||||||
1959 | 33.48 | 34.95 | 44.45 | 53.17 | 57.53 | a | 73.37 | 77.90 | j | 72.26 | 65.93 | a | 50.89 | 40.57 | 34.00 | 50.96 | a | |||||||||
1960 | 26.73 | 33.29 | a | 47.83 | a | 52.20 | 59.78 | a | 72.98 | 75.55 | 75.85 | 65.55 | 48.16 | 42.45 | 23.83 | a | 52.02 | |||||||||
1961 | 27.18 | 38.27 | 42.34 | 50.52 | 58.58 | a | 71.17 | a | 76.85 | 73.89 | 62.58 | 53.84 | 39.28 | 23.05 | 51.46 | |||||||||||
1962 | 27.83 | a | 33.34 | 38.92 | 56.27 | 58.95 | 70.27 | 76.29 | 77.42 | 68.93 | 55.32 | 45.77 | 34.10 | 53.62 | ||||||||||||
1963 | 22.42 | 42.71 | 39.65 | 51.58 | 63.43 | a | 66.78 | 78.53 | 71.44 | 68.25 | 59.23 | ----- | z | 32.98 | 54.27 | a | ||||||||||
1964 | ----- | z | 31.93 | ----- | z | ----- | z | 59.16 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.10 | ----- | z | 43.06 | i | |||
1965 | 35.32 | ----- | z | ----- | z | ----- | z | ----- | z | 63.15 | 73.85 | 73.84 | 61.33 | 58.02 | 44.93 | 33.23 | 55.46 | d | ||||||||
1966 | 27.55 | 28.98 | 44.85 | 53.50 | 63.65 | 70.95 | 75.42 | 74.97 | 66.45 | 54.42 | ----- | z | 31.56 | 53.85 | a | |||||||||||
1967 | 29.77 | 38.04 | 46.94 | 47.17 | 58.90 | 65.60 | 74.89 | 72.90 | 63.37 | 58.77 | ----- | z | 22.73 | 52.64 | a | |||||||||||
1968 | 21.69 | 39.71 | 44.25 | a | 46.78 | 60.26 | ----- | z | 75.84 | 67.71 | 64.75 | 55.08 | 40.05 | 26.35 | 49.32 | a | ||||||||||
1969 | 35.00 | 33.95 | 38.37 | a | 51.63 | 63.10 | 67.93 | 76.27 | 76.13 | 66.33 | 48.00 | 40.15 | 35.65 | 52.71 | ||||||||||||
1970 | 32.84 | 40.55 | 39.85 | 45.40 | 61.39 | 70.03 | 75.97 | 75.65 | 64.70 | 50.11 | 42.87 | 32.19 | 52.63 | |||||||||||||
1971 | 33.84 | 36.36 | 44.77 | 50.95 | 55.71 | 70.80 | 78.73 | 73.29 | 63.60 | 49.39 | 38.73 | 27.35 | 51.96 | |||||||||||||
1972 | 35.05 | 40.29 | 52.32 | 54.25 | 61.61 | 69.93 | a | ----- | z | ----- | z | 60.13 | 48.63 | 36.92 | 27.60 | a | 48.67 | b | ||||||||
1973 | ----- | z | 32.96 | 36.94 | 47.37 | 61.53 | 70.17 | ----- | z | 74.62 | a | 66.03 | a | 56.63 | 43.98 | 35.40 | 52.56 | b | ||||||||
1974 | 26.76 | 34.20 | 47.98 | 50.15 | 66.52 | 76.67 | 74.50 | 73.92 | 66.50 | 54.63 | 40.59 | a | 30.05 | a | 53.54 | |||||||||||
1975 | 30.02 | 33.11 | 40.61 | 44.55 | 53.79 | 68.82 | 75.27 | a | 73.13 | 66.62 | 53.18 | 40.33 | 31.13 | 50.88 | ||||||||||||
1976 | 29.89 | 39.07 | b | 39.89 | 46.52 | 57.35 | 64.30 | t | 72.55 | 70.66 | 62.70 | 51.16 | 40.65 | 29.92 | 49.12 | a | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 30.87 | 36.30 | 42.57 | 50.81 | 60.13 | 69.32 | 75.22 | 73.19 | 65.60 | 53.59 | 40.86 | 32.16 | 52.71 | |||||||||||||
S.D. | 4.22 | 4.25 | 3.86 | 3.64 | 3.20 | 3.05 | 2.44 | 2.62 | 2.54 | 3.26 | 3.21 | 4.40 | 1.28 | |||||||||||||
SKEW | -0.40 | -0.43 | 0.46 | 0.01 | -0.33 | 0.07 | -1.52 | -1.37 | -0.43 | -0.23 | 0.67 | -0.12 | 0.71 | |||||||||||||
MAX | 39.92 | 42.96 | 52.32 | 58.88 | 66.52 | 76.67 | 78.73 | 77.42 | 68.93 | 59.23 | 50.37 | 41.26 | 55.78 | |||||||||||||
MIN | 21.13 | 25.95 | 35.65 | 43.63 | 52.65 | 63.15 | 67.48 | 64.18 | 60.13 | 47.65 | 35.09 | 22.73 | 50.88 | |||||||||||||
YRS | 35 | 36 | 35 | 35 | 37 | 32 | 33 | 32 | 32 | 33 | 33 | 36 | 16 |