YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | 30.23 | 26.27 | 39.90 | 48.72 | 56.16 | 56.31 | a | 72.53 | a | 71.68 | c | 61.07 | 48.40 | 38.45 | a | 34.27 | 48.67 | |||||||||
1940 | 28.87 | 32.76 | 41.90 | 46.48 | 58.02 | 66.05 | 69.50 | a | 71.50 | 58.28 | 49.37 | 31.97 | 31.65 | 48.86 | ||||||||||||
1941 | 28.50 | 31.82 | 41.92 | 44.75 | 52.19 | 57.43 | 69.81 | 64.24 | 51.60 | a | 45.18 | 38.57 | 30.55 | 46.38 | ||||||||||||
1942 | 19.80 | a | 25.23 | 34.50 | 45.85 | 47.84 | 56.43 | 69.84 | 65.20 | h | 58.50 | 49.19 | 34.20 | 28.19 | 42.69 | a | ||||||||||
1943 | 21.95 | 30.66 | 35.88 | a | 48.40 | 48.84 | b | 54.17 | 66.45 | a | 64.58 | 62.88 | 47.03 | a | 36.05 | 30.44 | 45.61 | |||||||||
1944 | 21.39 | 28.98 | 35.29 | 43.03 | 51.84 | 55.73 | 66.11 | 64.05 | 57.53 | 51.77 | 32.45 | 25.56 | 44.48 | |||||||||||||
1945 | 26.68 | 32.84 | 34.31 | 42.23 | 52.55 | 56.80 | 69.55 | 66.84 | 55.22 | 50.69 | 34.50 | 27.11 | 45.78 | |||||||||||||
1946 | 25.19 | 28.46 | 38.50 | b | 47.50 | 52.74 | 57.84 | a | 67.93 | b | 68.58 | 54.28 | a | 40.80 | a | 35.13 | 33.63 | a | 45.88 | |||||||
1947 | 24.98 | 36.91 | 41.75 | a | 46.29 | a | 58.13 | 55.15 | 68.03 | 64.43 | a | 58.22 | 48.10 | a | 34.63 | 28.53 | 47.10 | |||||||||
1948 | 31.90 | 29.79 | 34.32 | 40.97 | 50.24 | 61.58 | 64.90 | 63.10 | 55.65 | 47.40 | 33.83 | 20.21 | 44.49 | |||||||||||||
1949 | 9.98 | 27.95 | 37.98 | 48.20 | 56.37 | 59.95 | 67.89 | 66.48 | 59.55 | 42.15 | 42.98 | 26.79 | 45.52 | |||||||||||||
1950 | 19.71 | 28.82 | 33.94 | 42.95 | 50.68 | 57.98 | 68.15 | 68.63 | 59.65 | 49.58 | 38.63 | 34.06 | 46.07 | |||||||||||||
1951 | 23.61 | 31.93 | 33.16 | 48.68 | 53.32 | 60.37 | 69.84 | 67.29 | 60.55 | 44.82 | 33.60 | 24.18 | 45.95 | |||||||||||||
1952 | 21.00 | 25.07 | 31.42 | 48.23 | 53.79 | 58.28 | 68.23 | 67.69 | 61.60 | 54.03 | 32.67 | 26.26 | 45.69 | |||||||||||||
1953 | 35.48 | 34.50 | 37.61 | 43.10 | 47.16 | 54.70 | 69.94 | 65.81 | 62.52 | 48.63 | 40.20 | 30.79 | 47.54 | |||||||||||||
1954 | 31.10 | 36.64 | 35.32 | 46.33 | 55.69 | 55.77 | 68.87 | 62.76 | 56.30 | 46.85 | 41.13 | 26.58 | 46.95 | |||||||||||||
1955 | 21.10 | 25.36 | 33.56 | 38.43 | 49.98 | 61.80 | 64.97 | 69.98 | 58.35 | 49.45 | 32.63 | 29.03 | 44.55 | |||||||||||||
1956 | 25.95 | 23.48 | 36.68 | 46.85 | 54.84 | 57.70 | 69.98 | 65.52 | 58.68 | 45.65 | 36.20 | 29.56 | 45.92 | |||||||||||||
1957 | 18.19 | 30.50 | 38.45 | 45.15 | 53.81 | 61.17 | 66.56 | 65.00 | 61.22 | 45.53 | 34.18 | 31.26 | 45.92 | |||||||||||||
1958 | 28.03 | 36.80 | 35.44 | 43.17 | 60.18 | 61.30 | 68.82 | 70.97 | 57.07 | 51.69 | 37.82 | 35.02 | 48.86 | |||||||||||||
1959 | 32.74 | 32.73 | 37.69 | 47.62 | 47.95 | 62.38 | 71.26 | 65.95 | 54.82 | 48.44 | 37.13 | 26.66 | 47.11 | |||||||||||||
1960 | 22.65 | 27.62 | 39.16 | 44.00 | 49.00 | 62.82 | 73.19 | 63.50 | 60.27 | 47.26 | 34.53 | 28.32 | 46.03 | |||||||||||||
1961 | 30.11 | 36.04 | 37.71 | 44.15 | 50.42 | 66.27 | 70.53 | 70.89 | 53.12 | 45.90 | 33.55 | 26.15 | 47.07 | |||||||||||||
1962 | 20.98 | 29.25 | 34.69 | 47.62 | 48.87 | 59.97 | 66.24 | 63.81 | 60.43 | 48.11 | 37.87 | 32.73 | 45.88 | |||||||||||||
1963 | 25.29 | 40.30 | 37.16 | 39.93 | 54.42 | 56.95 | 63.40 | 66.39 | 62.80 | 50.31 | 36.43 | 27.63 | 46.75 | |||||||||||||
1964 | 25.60 | 27.00 | 34.11 | 41.23 | 49.37 | 56.93 | 67.08 | 62.95 | 55.57 | 49.82 | 33.63 | 29.06 | 44.36 | |||||||||||||
1965 | 28.55 | 34.57 | 37.24 | 45.63 | 49.61 | 60.43 | 67.08 | 63.76 | 53.33 | 51.06 | 37.55 | 26.19 | 46.25 | |||||||||||||
1966 | 27.13 | 29.34 | 38.39 | 45.72 | 55.53 | 57.88 | 66.45 | 67.02 | 60.38 | 47.05 | 38.72 | 28.71 | 46.86 | |||||||||||||
1967 | 31.05 | 34.88 | 35.02 | 37.88 | 52.68 | 61.05 | 71.94 | 72.27 | 62.77 | 46.19 | 38.12 | 25.44 | 47.44 | |||||||||||||
1968 | 26.95 | 38.90 | 40.16 | 40.58 | 51.69 | 61.08 | 72.35 | 62.19 | 57.43 | 45.40 | 35.88 | 28.32 | 46.75 | |||||||||||||
1969 | 25.90 | 26.21 | 34.10 | 44.30 | 56.74 | 61.02 | 68.48 | 66.95 | 59.87 | 42.23 | 36.98 | 31.10 | 46.16 | |||||||||||||
1970 | 29.73 | 36.88 | 37.27 | 37.80 | 52.31 | 63.00 | 69.90 | 69.47 | 52.85 | 43.92 | 36.78 | 22.85 | 46.06 | |||||||||||||
1971 | 29.94 | 33.09 | 33.39 | 42.63 | 52.13 | 56.80 | 68.60 | 70.81 | 52.02 | 43.85 | 34.80 | 23.92 | 45.16 | |||||||||||||
1972 | 23.35 | 30.64 | 41.56 | 40.45 | 54.63 | 62.22 | 67.24 | 68.03 | 52.10 | 48.24 | 35.15 | 20.69 | 45.36 | |||||||||||||
1973 | 25.60 | 34.21 | 36.90 | 43.93 | 55.08 | 60.53 | 70.76 | 66.15 | 57.67 | 46.45 | 34.58 | 32.35 | 47.02 | |||||||||||||
1974 | 26.60 | 32.88 | 36.82 | 42.77 | 50.19 | 65.77 | 67.44 | 66.94 | 61.45 | 48.13 | 36.47 | 28.39 | 46.99 | |||||||||||||
1975 | 25.06 | 30.21 | 33.82 | 38.07 | 50.48 | 58.53 | 70.92 | 63.53 | 61.78 | 45.37 | 33.60 | 30.77 | 45.18 | |||||||||||||
1976 | 27.60 | 30.33 | 34.13 | 41.83 | 53.90 | 56.52 | 68.68 | 61.18 | 60.43 | 48.21 | 40.85 | 29.84 | 46.12 | |||||||||||||
1977 | 19.15 | 35.32 | 34.74 | 48.37 | 47.06 | 65.98 | 67.19 | 68.87 | 56.30 | 48.63 | 34.68 | 31.81 | 46.51 | |||||||||||||
1978 | 30.05 | 31.79 | 43.58 | 42.88 | 49.13 | 58.83 | 68.31 | 64.56 | 54.60 | 50.56 | 32.77 | 21.73 | 45.73 | |||||||||||||
1979 | 15.76 | 31.20 | 39.13 | 44.13 | 53.58 | 61.32 | 69.23 | 66.81 | 62.27 | 51.00 | 31.95 | 29.82 | 46.35 | |||||||||||||
1980 | 25.15 | 35.02 | 35.13 | 45.20 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.12 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.44 | 31.50 | 36.76 | 44.10 | 52.42 | 59.58 | 68.64 | 66.53 | 58.07 | 47.62 | 35.90 | 28.44 | 46.28 | |||||||||||||
S.D. | 4.96 | 4.03 | 2.85 | 3.16 | 3.21 | 3.20 | 2.15 | 2.90 | 3.36 | 2.82 | 2.67 | 3.60 | 1.08 | |||||||||||||
SKEW | -0.68 | 0.06 | 0.53 | -0.35 | 0.30 | 0.42 | -0.05 | 0.29 | -0.35 | -0.26 | 0.62 | -0.37 | 0.52 | |||||||||||||
MAX | 35.48 | 40.30 | 43.58 | 48.72 | 60.18 | 66.27 | 73.19 | 72.27 | 62.88 | 54.03 | 42.98 | 35.02 | 48.86 | |||||||||||||
MIN | 9.98 | 23.48 | 31.42 | 37.80 | 47.06 | 54.17 | 63.40 | 61.18 | 51.60 | 40.80 | 31.95 | 20.21 | 44.36 | |||||||||||||
YRS | 42 | 42 | 42 | 42 | 41 | 41 | 41 | 40 | 41 | 41 | 41 | 41 | 40 |