YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.65 | 66.77 | 69.37 | 59.38 | b | 55.10 | 45.09 | b | 43.71 | 57.15 | e | |||||
1930 | 33.21 | b | 40.95 | 39.63 | 51.40 | 45.40 | 55.28 | 62.61 | 58.79 | 54.78 | 49.69 | 43.00 | b | 38.98 | 47.81 | |||||||||||
1931 | 37.31 | 40.48 | 49.35 | 52.82 | 56.58 | 59.00 | 73.87 | 69.91 | b | 61.36 | b | 55.66 | 39.67 | 35.26 | 52.61 | |||||||||||
1932 | 32.26 | 36.41 | 47.85 | 46.90 | 51.79 | 58.43 | 65.84 | 67.34 | 68.53 | 54.19 | 53.03 | 36.18 | 51.56 | |||||||||||||
1933 | 35.69 | 37.84 | 46.13 | 46.75 | b | 46.62 | a | 60.23 | 69.06 | 67.79 | 64.93 | 62.66 | 50.45 | 44.68 | 52.74 | |||||||||||
1934 | 43.92 | 44.09 | 51.94 | 54.95 | 59.24 | 57.43 | 68.81 | 68.52 | 66.30 | 54.84 | 50.53 | 42.74 | 55.28 | |||||||||||||
1935 | 36.85 | 45.02 | 40.92 | 49.03 | 51.71 | 65.47 | 66.65 | 68.55 | 63.93 | 52.92 | 46.57 | 44.90 | 52.71 | |||||||||||||
1936 | 44.37 | 38.38 | 48.21 | b | 50.68 | 57.63 | 64.62 | 69.68 | 71.48 | 65.52 | a | 54.66 | 49.67 | 38.65 | 54.46 | |||||||||||
1937 | 29.11 | 38.68 | 41.85 | 49.82 | 57.34 | 61.80 | 71.07 | a | 73.39 | 68.72 | 58.69 | 52.68 | 46.34 | 54.12 | ||||||||||||
1938 | 43.47 | 36.89 | 38.84 | 47.25 | 52.18 | 60.42 | 68.82 | 70.77 | 67.22 | 52.52 | 48.00 | 45.82 | 52.68 | |||||||||||||
1939 | 41.39 | 36.96 | b | 45.42 | 51.68 | 55.03 | 60.53 | 68.00 | 70.03 | 62.48 | 53.79 | 53.53 | 50.03 | 54.07 | ||||||||||||
1940 | 44.90 | 43.24 | 47.77 | 48.42 | 55.13 | 68.80 | 69.26 | 71.66 | 61.33 | a | 54.47 | 46.98 | 45.11 | 54.76 | ||||||||||||
1941 | 42.45 | 41.00 | 44.19 | 43.70 | 51.65 | 56.70 | 66.97 | 65.97 | 60.03 | 48.79 | 46.78 | 38.42 | 50.55 | |||||||||||||
1942 | 40.95 | 37.23 | 44.28 | a | 43.79 | b | 52.11 | 63.28 | a | 68.95 | a | 66.29 | 59.85 | 53.92 | 48.85 | ----- | z | 52.68 | a | |||||||
1943 | 40.61 | 41.88 | 46.88 | a | 50.02 | 57.02 | 56.87 | 68.22 | a | 68.32 | 68.35 | 54.98 | 48.25 | 37.60 | 53.25 | |||||||||||
1944 | 37.21 | 33.19 | 38.65 | 43.60 | a | 52.39 | 52.84 | a | 65.57 | b | 69.23 | 66.32 | 55.95 | 40.45 | 41.06 | 49.70 | ||||||||||
1945 | 39.77 | 39.87 | b | 37.30 | c | 49.02 | b | 51.65 | a | 60.97 | 70.97 | a | 68.60 | 64.78 | a | 55.00 | a | 44.47 | a | 40.14 | b | 51.88 | ||||
1946 | 38.95 | 39.27 | b | 42.94 | f | 51.78 | a | 52.91 | b | 60.80 | 67.97 | 70.31 | 65.40 | 49.74 | b | 40.59 | c | 44.05 | a | 52.89 | a | |||||
1947 | 41.06 | 45.77 | 46.71 | 49.36 | a | 58.33 | b | 60.41 | a | 72.06 | 67.79 | b | 68.33 | 55.16 | b | 43.18 | 42.15 | 54.19 | ||||||||
1948 | 44.60 | b | 38.48 | 40.26 | 44.10 | 52.17 | a | 57.47 | 65.42 | 66.66 | 64.70 | 52.87 | 45.80 | 37.39 | 50.83 | |||||||||||
1949 | 30.45 | 36.95 | 40.58 | 50.63 | 51.37 | 62.87 | 67.50 | 65.50 | 64.46 | f | 51.61 | 50.10 | 37.98 | 49.60 | a | |||||||||||
1950 | 34.27 | 44.80 | 44.58 | a | 52.20 | 55.85 | a | 61.37 | 68.77 | 67.84 | 58.72 | 59.13 | 51.30 | 49.82 | 54.05 | |||||||||||
1951 | 42.24 | 41.96 | 44.85 | 47.32 | 53.94 | 61.67 | 70.76 | 68.39 | 69.78 | 54.19 | 45.47 | 36.08 | 53.05 | |||||||||||||
1952 | 32.79 | 39.59 | 35.13 | 45.58 | 60.39 | 58.13 | 70.52 | 71.26 | 66.13 | 63.90 | 41.50 | 37.65 | 51.88 | |||||||||||||
1953 | 44.35 | a | 40.62 | 41.92 | a | 46.43 | a | 46.65 | 58.43 | 71.87 | 67.97 | 67.78 | 55.74 | 46.53 | 40.82 | a | 52.43 | |||||||||
1954 | 37.79 | b | 45.50 | 38.02 | 50.60 | 58.61 | 59.86 | a | 71.45 | a | 64.66 | 64.98 | 57.73 | 49.08 | 39.32 | 53.13 | ||||||||||
1955 | 31.05 | 34.68 | 42.32 | a | 43.67 | 49.97 | a | 59.23 | 65.68 | 69.94 | 66.05 | 58.27 | 45.17 | 41.68 | a | 50.64 | ||||||||||
1956 | 43.12 | a | 34.86 | 45.18 | 43.73 | 52.05 | 63.00 | 67.97 | 66.92 | 68.60 | 51.56 | 46.58 | 41.82 | 52.12 | ||||||||||||
1957 | 33.92 | 45.77 | 43.19 | 45.83 | 48.32 | a | 64.60 | t | 69.13 | 67.15 | 63.45 | 49.08 | a | 41.81 | a | 42.56 | 50.02 | a | ||||||||
1958 | 40.15 | 41.52 | b | 34.89 | 46.25 | 56.03 | 60.88 | 67.62 | a | 71.60 | 65.45 | 60.10 | a | 46.73 | b | 48.69 | 53.33 | |||||||||
1959 | 43.82 | 35.21 | 46.85 | 53.00 | a | 49.84 | 64.43 | 73.15 | 68.03 | a | 61.58 | 59.05 | 48.37 | 40.56 | 53.66 | |||||||||||
1960 | 33.35 | 36.62 | 47.92 | 49.70 | 54.03 | a | 68.48 | b | 71.37 | 69.94 | 67.80 | 55.77 | 43.28 | 38.39 | 53.06 | |||||||||||
1961 | 42.87 | 42.57 | 41.87 | 49.12 | 49.42 | g | 67.00 | 72.27 | 68.73 | 60.33 | j | 53.81 | 42.71 | b | 37.37 | 51.83 | b | |||||||||
1962 | 37.74 | 35.39 | 35.03 | b | 53.50 | 48.94 | 61.68 | 68.39 | 71.00 | ----- | z | 56.50 | a | 48.58 | 43.37 | 50.92 | a | |||||||||
1963 | 36.85 | 47.04 | 39.13 | 39.97 | 54.08 | 55.40 | 69.52 | 67.52 | 65.78 | 55.75 | c | 44.07 | 41.48 | 51.38 | ||||||||||||
1964 | 36.69 | 38.55 | ----- | z | 45.30 | e | 51.71 | b | 59.53 | 69.69 | 67.69 | 63.40 | 60.98 | 40.38 | a | 39.55 | 52.13 | a | ||||||||
1965 | 39.58 | 41.24 | a | 39.83 | a | 42.62 | 51.12 | a | 55.90 | 67.27 | 68.68 | 56.45 | 61.06 | 45.98 | a | 36.84 | 50.55 | |||||||||
1966 | 36.69 | b | 34.94 | b | 45.56 | 52.05 | 55.95 | 62.17 | 68.21 | 70.47 | 63.90 | 55.16 | 45.53 | a | 40.13 | 52.56 | ||||||||||
1967 | 39.92 | 41.20 | 41.12 | a | 32.76 | a | 51.53 | 57.13 | 71.73 | 72.44 | 63.35 | 59.50 | 50.04 | b | 32.69 | 51.12 | ||||||||||
1968 | 37.40 | a | 44.76 | 43.19 | 46.83 | a | 53.92 | 63.69 | a | 67.97 | 64.03 | 64.90 | 56.65 | 45.75 | 38.12 | b | 52.27 | |||||||||
1969 | 41.08 | 33.69 | a | 39.69 | 47.48 | a | 56.87 | 59.45 | 68.40 | 73.18 | 67.22 | 51.85 | 45.45 | 43.37 | 52.31 | |||||||||||
1970 | 39.56 | 42.52 | 41.19 | 43.19 | a | 56.29 | b | 64.07 | 72.92 | 72.45 | 64.52 | g | 53.70 | a | 48.73 | d | 36.22 | a | 51.89 | a | ||||||
1971 | 40.57 | c | 40.15 | a | 44.68 | 44.57 | 47.95 | 60.22 | 70.27 | 71.00 | 67.02 | a | 51.21 | 44.95 | 33.50 | b | 51.34 | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.68 | 39.90 | 42.82 | 47.56 | 53.23 | 60.63 | 69.05 | 68.77 | 64.48 | 55.30 | 46.41 | 40.74 | 52.41 | |||||||||||||
S.D. | 4.25 | 3.69 | 4.11 | 4.21 | 3.63 | 3.47 | 2.36 | 2.70 | 3.50 | 3.54 | 3.53 | 4.11 | 1.56 | |||||||||||||
SKEW | -0.44 | 0.08 | -0.06 | -0.93 | -0.13 | 0.29 | -0.16 | -1.05 | -0.87 | 0.35 | 0.01 | 0.38 | -0.62 | |||||||||||||
MAX | 44.90 | 47.04 | 51.94 | 54.95 | 60.39 | 68.80 | 73.87 | 73.39 | 69.78 | 63.90 | 53.53 | 50.03 | 55.28 | |||||||||||||
MIN | 29.11 | 33.19 | 34.89 | 32.76 | 45.40 | 52.84 | 62.61 | 58.79 | 54.78 | 48.79 | 39.67 | 32.69 | 47.81 | |||||||||||||
YRS | 42 | 42 | 40 | 42 | 41 | 42 | 43 | 43 | 39 | 43 | 43 | 42 | 34 |