YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1922 | ----- | z | ----- | z | 45.71 | q | 47.13 | 55.71 | c | 59.93 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.26 | i | |
1923 | 40.89 | v | ----- | z | ----- | z | 51.96 | e | 61.90 | a | 62.43 | 78.27 | a | 75.52 | 67.33 | 51.13 | 46.60 | ----- | z | 61.89 | d | |||||
1924 | 34.97 | 38.07 | 39.42 | ----- | z | 59.00 | ----- | z | 75.10 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.86 | h | ||||
1925 | ----- | z | ----- | z | 44.58 | l | 48.30 | 58.32 | 65.17 | 76.20 | a | 74.39 | 61.34 | a | 53.55 | 37.33 | 35.06 | 56.63 | c | |||||||
1926 | 28.77 | 36.36 | 44.14 | b | 51.93 | 55.60 | a | 62.60 | 71.55 | b | 72.27 | a | 67.57 | 53.30 | a | 39.52 | a | 37.16 | 51.73 | |||||||
1927 | 36.52 | 42.59 | a | 42.45 | b | 47.53 | 54.48 | 63.07 | 74.52 | 74.13 | 66.27 | 50.26 | 45.40 | 34.23 | 52.62 | |||||||||||
1928 | 32.17 | a | 36.97 | 44.48 | 47.47 | 59.06 | 65.22 | c | 73.47 | a | 74.86 | c | 66.76 | a | 51.87 | 41.83 | a | 33.86 | b | 52.33 | ||||||
1929 | 32.00 | g | 35.68 | c | 43.03 | b | 47.08 | d | 56.00 | b | 64.38 | a | 78.00 | 78.07 | b | 67.39 | b | 54.50 | a | 35.10 | a | 32.90 | 53.83 | a | ||
1930 | 37.90 | a | 42.74 | a | 46.35 | 54.17 | a | 54.03 | a | 65.93 | c | 76.31 | b | 73.31 | b | 62.75 | b | 47.16 | 43.21 | a | 27.19 | 52.59 | ||||
1931 | 31.29 | 44.85 | a | 42.80 | a | 51.90 | 57.60 | a | 66.97 | 80.70 | a | 75.86 | b | 66.89 | c | 52.90 | b | 41.63 | c | 34.30 | a | 53.97 | ||||
1932 | 31.77 | a | 41.04 | b | 45.46 | c | 47.70 | c | 56.14 | c | 63.21 | a | 76.24 | b | 75.77 | a | 66.10 | a | 52.56 | d | 39.32 | b | ----- | z | 54.12 | a |
1933 | 33.76 | b | 32.61 | 42.73 | a | 45.66 | a | 51.83 | b | 64.64 | b | 79.32 | i | 73.48 | f | 71.47 | 56.04 | d | 38.88 | e | 32.52 | d | 47.01 | b | ||
1934 | 31.64 | c | 41.27 | b | 47.69 | b | 53.64 | b | 60.50 | c | 61.07 | b | 78.13 | h | 79.00 | j | 66.38 | a | 54.16 | 41.50 | d | 38.32 | c | 49.62 | b | |
1935 | 36.89 | d | 45.04 | b | 43.48 | d | 49.81 | d | 53.85 | d | 64.61 | g | 74.63 | a | 76.70 | k | 69.85 | d | 51.57 | c | 34.08 | f | 35.00 | f | 53.14 | d |
1936 | 32.37 | d | 38.96 | c | 44.17 | h | 50.58 | f | 58.77 | e | 69.17 | a | 77.82 | c | 78.47 | a | 67.18 | b | 53.19 | e | 40.54 | b | 34.85 | d | 55.13 | b |
1937 | 27.65 | 37.67 | a | 41.93 | b | 49.07 | 56.87 | a | 65.52 | c | 78.19 | e | 79.28 | b | 73.80 | 53.52 | d | 40.52 | g | 40.55 | b | 54.91 | a | |||
1938 | 35.78 | d | 41.42 | b | 46.07 | d | 49.93 | 57.73 | e | 65.45 | a | 75.97 | 75.77 | 69.74 | c | 51.77 | e | 32.39 | b | 37.21 | c | 53.27 | ||||
1939 | 36.58 | 34.81 | b | 43.25 | c | 50.78 | g | 59.61 | c | 66.14 | b | 77.19 | d | 79.43 | c | 71.59 | c | 50.19 | d | 45.38 | a | 36.37 | a | 54.59 | a | |
1940 | 38.20 | a | 41.15 | c | 46.24 | b | 52.80 | e | 60.04 | c | 68.60 | 71.89 | d | 76.97 | a | 68.07 | a | 55.70 | a | 36.66 | a | 40.57 | a | 54.74 | ||
1941 | 39.87 | a | 45.11 | a | 46.03 | a | 48.83 | a | 58.24 | b | 61.21 | b | 73.83 | a | 70.92 | e | 55.89 | c | 49.89 | c | 38.68 | b | 36.52 | b | 52.09 | |
1942 | 34.36 | c | 34.42 | b | 39.79 | b | 49.61 | b | 54.83 | h | 62.75 | f | 76.63 | a | 78.80 | k | 61.60 | e | 54.41 | b | 38.30 | c | 33.68 | l | 48.64 | d |
1943 | 35.52 | f | 38.77 | b | 46.29 | c | 50.81 | d | 56.69 | b | 62.21 | a | 71.75 | c | 75.72 | b | 69.14 | b | 53.87 | a | 34.62 | a | 36.90 | 54.25 | a | |
1944 | 31.50 | a | 38.36 | a | 43.36 | c | 47.62 | d | 54.96 | c | 59.70 | 65.39 | m | 76.37 | d | 76.96 | f | 64.68 | 46.00 | d | 33.55 | 49.61 | b | |||
1945 | 34.43 | c | 36.89 | i | 41.64 | c | 46.94 | m | 56.71 | x | 59.04 | f | 76.63 | d | 82.10 | a | 71.73 | s | 58.08 | g | 38.20 | j | 29.25 | c | 52.81 | g |
1946 | 33.57 | h | 31.29 | 41.52 | d | 50.57 | b | 55.96 | h | 63.38 | d | 75.59 | d | 78.43 | h | 68.63 | 49.71 | 36.82 | b | 35.30 | d | 50.31 | c | |||
1947 | 28.90 | 38.71 | 43.90 | 50.07 | 60.90 | 65.40 | 75.66 | b | 73.61 | 69.89 | b | 53.37 | d | 37.83 | 31.33 | a | 52.47 | |||||||||
1948 | 30.00 | b | 35.04 | b | 39.10 | 50.63 | 54.00 | 61.90 | 73.32 | 76.17 | a | 67.50 | d | 56.97 | 34.70 | 32.77 | 51.01 | |||||||||
1949 | 30.45 | b | 32.92 | b | 40.45 | b | 50.37 | 55.42 | 66.75 | b | 73.83 | m | 71.94 | m | ----- | z | ----- | z | ----- | z | ----- | z | 46.06 | f | ||
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.03 | a | 35.47 | a | 38.25 | j |
1952 | 32.97 | 36.28 | 43.44 | d | 54.64 | b | 62.81 | 65.37 | 76.19 | 79.10 | 70.47 | 55.84 | 38.97 | 35.65 | 54.31 | |||||||||||
1953 | 38.23 | 36.14 | 44.00 | 50.60 | 53.39 | 65.43 | 80.70 | a | 75.39 | 64.10 | 52.52 | 42.47 | 29.90 | 52.74 | ||||||||||||
1954 | 33.16 | 42.39 | 43.57 | a | 52.87 | 60.03 | 66.53 | 80.60 | a | 73.61 | 68.71 | b | 54.81 | 42.33 | 34.38 | b | 54.42 | |||||||||
1955 | 35.97 | 35.21 | 42.87 | 48.10 | 57.26 | 64.37 | 72.77 | 77.71 | 67.07 | 56.58 | 40.46 | b | 36.13 | 52.88 | ||||||||||||
1956 | 37.25 | c | 32.31 | 40.10 | b | 49.37 | 57.87 | 68.13 | 76.11 | c | 69.00 | h | 69.67 | 53.68 | c | 35.47 | 31.71 | 50.15 | a | |||||||
1957 | 40.58 | 45.32 | 47.13 | a | 50.37 | 55.29 | 68.07 | c | 78.52 | d | 76.44 | f | 66.37 | 56.58 | 41.57 | 35.97 | 53.25 | a | ||||||||
1958 | 34.68 | 43.86 | 45.31 | b | 51.03 | 63.26 | 69.04 | b | 72.93 | a | 78.46 | e | 69.67 | 58.66 | b | 40.70 | 33.97 | 55.13 | ||||||||
1959 | 35.10 | 37.57 | 43.74 | 53.86 | b | 57.52 | 69.18 | b | 79.83 | b | 76.67 | a | 63.92 | f | 53.77 | 42.66 | a | 37.97 | 53.44 | a | ||||||
1960 | 33.39 | 38.07 | 48.19 | d | 51.54 | b | 57.45 | 70.50 | 76.24 | b | 74.97 | 68.30 | 55.06 | 40.97 | 31.55 | 53.85 | ||||||||||
1961 | 35.45 | 39.75 | 44.21 | b | 50.77 | 56.69 | b | 70.30 | 77.52 | b | 74.87 | a | 63.70 | 48.87 | 40.08 | e | 36.10 | 53.19 | ||||||||
1962 | 35.87 | 41.26 | a | 40.03 | a | 52.66 | a | 54.41 | d | 63.11 | c | 72.18 | c | 74.65 | e | 70.50 | 52.29 | 43.90 | 37.45 | 53.19 | ||||||
1963 | 30.52 | 43.61 | 42.36 | c | 47.66 | a | 59.58 | 62.92 | f | 76.03 | 75.73 | a | 70.23 | d | 58.28 | b | 44.03 | 30.45 | b | 52.59 | a | |||||
1964 | 28.29 | c | 33.43 | a | 40.45 | 49.25 | b | 55.68 | c | 64.23 | d | 77.03 | 76.03 | b | 65.73 | 59.68 | 38.83 | a | 36.35 | 52.08 | ||||||
1965 | 37.68 | 39.04 | 42.44 | f | 51.53 | 55.66 | b | 59.43 | b | 73.97 | 75.16 | 63.23 | 52.39 | 47.70 | 39.35 | 54.10 | a | |||||||||
1966 | 33.32 | 36.26 | a | 43.87 | 52.07 | b | 60.47 | a | 65.43 | 77.78 | h | 78.64 | c | 68.63 | 52.77 | 43.77 | 36.26 | 51.95 | a | |||||||
1967 | 32.38 | b | 36.38 | b | 45.81 | 46.30 | 56.16 | 63.13 | 79.00 | b | 77.52 | 69.13 | 55.04 | c | 46.00 | b | 34.65 | 53.46 | ||||||||
1968 | 34.23 | 44.14 | 45.13 | 50.64 | e | 57.23 | a | 65.34 | a | 75.65 | 71.41 | b | 64.46 | b | 52.07 | c | 44.22 | g | 30.26 | 53.69 | a | |||||
1969 | 41.26 | 36.77 | b | 43.25 | c | 52.15 | d | 58.78 | d | 63.25 | j | 77.19 | 79.93 | c | 69.26 | c | 51.61 | c | 46.96 | b | 38.10 | 54.11 | a | |||
1970 | 34.16 | 41.70 | e | 43.93 | b | 45.20 | 56.56 | d | 65.63 | 78.52 | d | 78.58 | e | 65.97 | a | 51.92 | f | 41.15 | c | 34.90 | 53.30 | a | ||||
1971 | 32.10 | 38.25 | 43.52 | 48.62 | d | 54.35 | 64.28 | e | 76.26 | 77.29 | 72.09 | h | 54.00 | c | 40.67 | c | 34.96 | e | 51.30 | a | ||||||
1972 | 29.81 | 37.86 | 48.50 | c | 50.20 | 56.15 | d | 68.07 | 76.26 | d | 73.69 | e | 64.32 | e | 59.21 | b | 40.61 | b | 34.93 | b | 53.30 | |||||
1973 | 34.06 | 40.77 | b | 43.00 | 48.32 | e | 56.27 | e | 66.63 | 74.07 | d | 73.39 | 59.38 | i | 50.52 | 41.47 | 34.48 | 51.18 | a | |||||||
1974 | 37.55 | 36.29 | 46.59 | b | 49.60 | 57.68 | 69.20 | 74.94 | 70.94 | 71.13 | 58.42 | 42.77 | 33.13 | 54.02 | ||||||||||||
1975 | 33.23 | 35.54 | 41.61 | 44.47 | 53.42 | 61.63 | 76.68 | 72.61 | 68.57 | 51.39 | 39.63 | 35.48 | 51.19 | |||||||||||||
1976 | 33.74 | 42.34 | 41.94 | 47.42 | d | 58.77 | 64.90 | 75.32 | 70.48 | 67.53 | 54.55 | 43.20 | 34.13 | 52.86 | ||||||||||||
1977 | 36.81 | 36.75 | 40.10 | 49.07 | 54.29 | 67.00 | 76.48 | 76.23 | 68.20 | 58.58 | 43.70 | 41.84 | 54.09 | |||||||||||||
1978 | 41.55 | 43.18 | 48.97 | 50.33 | 57.39 | 69.20 | 76.74 | 73.65 | 67.83 | 60.13 | 45.57 | 34.74 | 55.77 | |||||||||||||
1979 | 37.10 | a | 38.46 | 44.90 | a | 49.17 | 58.45 | 66.54 | b | 73.16 | 71.06 | 71.67 | 56.84 | 40.60 | 37.69 | e | 53.80 | |||||||||
1980 | 42.10 | 44.97 | 45.79 | b | 50.07 | 55.52 | 65.73 | 78.37 | d | 76.58 | 64.78 | l | ----- | z | ----- | z | 39.28 | f | 57.39 | d | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.48 | 38.86 | 43.73 | 49.86 | 57.14 | 65.22 | 76.07 | 75.60 | 67.45 | 54.12 | 40.99 | 34.97 | 53.23 | |||||||||||||
S.D. | 3.49 | 3.74 | 2.42 | 2.29 | 2.47 | 2.76 | 2.31 | 2.63 | 3.18 | 3.28 | 3.47 | 2.93 | 1.15 | |||||||||||||
SKEW | 0.19 | 0.06 | 0.09 | -0.10 | 0.35 | -0.13 | -0.04 | 0.02 | -1.09 | 0.67 | -0.24 | -0.18 | 0.11 | |||||||||||||
MAX | 42.10 | 45.32 | 48.97 | 54.64 | 63.26 | 70.50 | 80.70 | 82.10 | 73.80 | 64.68 | 47.70 | 41.84 | 55.77 | |||||||||||||
MIN | 27.65 | 31.29 | 39.10 | 44.47 | 51.83 | 59.43 | 71.55 | 70.48 | 55.89 | 47.16 | 32.39 | 27.19 | 51.01 | |||||||||||||
YRS | 51 | 53 | 52 | 53 | 54 | 51 | 50 | 47 | 48 | 51 | 50 | 50 | 27 |