YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1926 | 32.50 | b | 42.64 | 42.48 | 49.78 | 63.05 | 72.28 | l | 76.82 | a | 78.13 | 72.69 | a | 58.42 | 43.73 | 34.47 | 54.06 | a | ||||||||
1927 | 40.24 | b | 43.20 | a | 45.10 | 59.33 | 70.26 | 72.95 | a | 78.77 | 75.24 | 69.10 | a | 58.50 | a | 49.45 | 32.90 | a | 57.92 | |||||||
1928 | 36.16 | 38.31 | 49.91 | o | 53.25 | 65.55 | 72.78 | 79.27 | 75.87 | 68.31 | a | 59.11 | 43.15 | 35.65 | a | 57.04 | a | |||||||||
1929 | 36.86 | c | 30.09 | a | 45.44 | 55.40 | 61.92 | 74.85 | 78.95 | 77.65 | 68.97 | 58.47 | 35.63 | 35.95 | 55.01 | |||||||||||
1930 | 26.02 | a | 45.54 | 41.73 | 61.67 | 63.28 | a | 75.15 | 79.34 | 78.66 | 69.19 | a | 55.40 | a | 45.16 | a | 33.68 | a | 56.23 | |||||||
1931 | 34.35 | a | 41.79 | 39.79 | b | 52.86 | a | 61.69 | 78.07 | 80.08 | 75.34 | 75.77 | ----- | z | 45.55 | a | 39.19 | 56.77 | a | |||||||
1932 | 34.29 | b | 43.88 | a | 42.93 | a | 56.66 | a | 67.24 | 72.25 | b | 82.05 | c | 81.32 | 68.93 | ----- | z | ----- | z | ----- | z | 61.06 | c | |||
1933 | ----- | z | 34.44 | c | 50.19 | 54.73 | 70.12 | r | 78.45 | 82.26 | 77.47 | 74.52 | a | 60.87 | a | 47.65 | 41.93 | b | 60.25 | b | ||||||
1934 | 39.21 | 40.66 | 47.16 | 55.70 | 71.29 | 77.45 | a | 83.50 | 81.30 | a | 68.09 | a | 62.74 | b | 49.25 | 38.48 | a | 59.57 | ||||||||
1935 | 39.48 | a | 40.02 | b | 53.71 | b | 57.47 | 62.47 | 76.80 | 82.00 | 80.52 | a | 67.46 | d | 59.68 | c | ----- | z | ----- | z | 61.96 | b | ||||
1936 | ----- | z | ----- | z | 49.16 | 55.27 | 65.85 | 74.57 | 78.19 | 79.00 | a | 67.60 | 54.15 | 43.02 | 38.05 | 60.49 | b | |||||||||
1937 | 29.37 | a | 37.41 | 40.40 | e | 52.50 | c | 65.82 | 71.42 | 78.63 | a | 79.81 | d | 69.88 | a | 58.23 | 44.42 | d | 36.26 | 55.35 | ||||||
1938 | 37.17 | b | 36.56 | b | 48.54 | h | 54.38 | f | 64.40 | f | 72.35 | f | 76.45 | b | 79.28 | b | 68.77 | b | 59.47 | b | 41.81 | a | 37.86 | b | 54.67 | d |
1939 | 38.18 | c | 33.61 | f | 50.70 | h | 55.82 | h | 63.06 | f | 73.88 | m | 78.18 | i | 74.15 | 72.30 | b | 56.95 | c | 42.69 | c | 39.31 | b | 53.93 | f | |
1940 | 24.69 | g | 37.83 | f | 45.93 | a | 54.50 | a | 63.82 | c | 72.11 | b | 80.21 | 75.60 | 72.50 | c | 60.85 | d | 40.14 | e | 38.13 | 60.38 | b | |||
1941 | 36.48 | b | 41.00 | b | 45.97 | a | 52.79 | a | 63.92 | a | 68.52 | 73.89 | 74.24 | 67.85 | c | 58.07 | a | 46.17 | 37.79 | 55.56 | ||||||
1942 | 33.02 | c | 33.79 | 44.25 | a | 55.37 | 64.14 | b | 75.60 | 77.89 | 74.74 | ----- | z | ----- | z | ----- | z | 42.82 | 55.73 | c | ||||||
1943 | 41.65 | a | 48.22 | a | 47.67 | h | 65.05 | 66.62 | a | 77.37 | 80.24 | 81.45 | 71.88 | a | 60.16 | b | 49.20 | 35.74 | 61.60 | a | ||||||
1944 | 39.07 | b | 43.97 | 50.07 | a | 58.16 | e | 65.72 | b | 73.80 | 77.53 | 77.81 | 68.98 | 59.83 | b | 47.42 | 37.10 | a | 58.29 | |||||||
1945 | 37.53 | b | 43.54 | a | 50.66 | b | 53.29 | b | 69.91 | d | 74.57 | b | 80.05 | a | 85.00 | l | ----- | z | 57.02 | 47.88 | a | 36.19 | 55.06 | b | ||
1946 | 36.75 | a | 41.93 | 51.42 | a | 64.81 | a | 63.03 | a | 77.55 | 80.21 | 78.90 | 70.80 | 59.31 | 44.45 | 42.47 | 59.30 | |||||||||
1947 | 37.30 | a | 38.86 | c | 52.18 | n | 55.90 | 66.77 | 74.98 | 80.32 | 78.74 | 73.73 | d | ----- | z | 42.10 | 39.63 | a | 58.83 | b | ||||||
1948 | 35.58 | a | 33.48 | 41.90 | b | 60.67 | a | 66.00 | a | 74.60 | 79.85 | 77.81 | 72.72 | 60.07 | b | 47.02 | j | 39.29 | q | 60.27 | b | |||||
1949 | 29.71 | 40.41 | 49.37 | 54.45 | 62.65 | 70.48 | 77.87 | a | 75.82 | 68.35 | 55.53 | 49.07 | b | ----- | z | 57.61 | a | |||||||||
1950 | 41.45 | a | 45.52 | 47.53 | 58.73 | q | 65.32 | a | 75.20 | 74.95 | 74.21 | 66.64 | b | 64.61 | 46.08 | 40.84 | 58.40 | a | ||||||||
1951 | 35.19 | b | 41.34 | 45.58 | 54.10 | 65.00 | 72.71 | a | 79.69 | 79.08 | 70.32 | 58.08 | 41.24 | a | 38.40 | 56.73 | ||||||||||
1952 | 39.73 | 40.41 | 43.81 | 56.02 | a | 66.55 | 79.78 | 77.39 | 79.82 | 69.43 | 57.16 | 41.97 | a | 38.24 | 57.53 | |||||||||||
1953 | 44.77 | 38.22 | a | 52.34 | 54.43 | b | 63.12 | a | 80.93 | 78.47 | 75.52 | 72.12 | 59.84 | 48.02 | 34.82 | 58.55 | ||||||||||
1954 | 39.64 | b | 48.78 | a | 46.37 | a | 61.70 | 63.11 | 77.15 | 81.18 | 77.85 | 74.25 | 59.68 | 49.53 | 42.37 | a | 60.13 | |||||||||
1955 | 36.31 | 38.07 | a | 45.83 | g | 56.65 | 64.40 | a | 72.02 | 76.74 | 77.15 | 70.87 | 59.90 | 44.76 | a | 41.65 | 58.05 | a | ||||||||
1956 | 39.71 | 37.57 | a | 48.32 | 55.50 | a | 69.76 | 78.68 | 78.84 | 76.98 | 72.95 | 61.23 | a | 43.27 | 38.71 | 58.46 | ||||||||||
1957 | 36.73 | a | 47.63 | a | 47.06 | 53.00 | 62.22 | a | 73.95 | 81.95 | 76.95 | 67.43 | 57.37 | 41.71 | a | 42.27 | 57.36 | |||||||||
1958 | 37.26 | 40.79 | 39.48 | 55.08 | e | 67.00 | 76.70 | 76.61 | 77.84 | 70.17 | 57.05 | 46.65 | 39.37 | 57.00 | ||||||||||||
1959 | 32.71 | 40.38 | 46.37 | 54.92 | 65.77 | 74.88 | 76.45 | 77.76 | 71.02 | 55.28 | a | 44.07 | 39.27 | 56.57 | ||||||||||||
1960 | 32.58 | 33.48 | 46.50 | 58.98 | 64.47 | 73.95 | 73.85 | 76.39 | 69.12 | 57.98 | a | 47.63 | 35.06 | 55.83 | ||||||||||||
1961 | 35.02 | 40.89 | 46.29 | 53.97 | 65.10 | 73.52 | 75.21 | 74.37 | 64.73 | 56.62 | a | 40.55 | a | 34.76 | 55.08 | |||||||||||
1962 | 31.42 | 45.00 | 43.08 | 56.35 | 67.74 | 70.95 | 76.31 | 77.31 | 68.70 | 59.35 | 47.10 | 39.84 | 56.93 | |||||||||||||
1963 | 29.19 | 42.38 | 48.47 | 58.67 | a | 67.00 | 73.07 | 80.18 | 77.03 | a | 71.95 | 64.02 | 48.00 | 33.69 | 57.80 | |||||||||||
1964 | 36.50 | 33.12 | 43.39 | 55.90 | 67.00 | 74.23 | 81.47 | 77.37 | 68.57 | 59.81 | 46.05 | 38.53 | 56.83 | |||||||||||||
1965 | 40.16 | 38.30 | 38.94 | 58.73 | 64.85 | 71.38 | 77.68 | 75.06 | 67.53 | 57.98 | 51.38 | 41.52 | 56.96 | |||||||||||||
1966 | 30.24 | 35.23 | 49.27 | 55.45 | 66.15 | 73.63 | 82.34 | 73.24 | 69.60 | 57.11 | 49.82 | 34.39 | 56.37 | |||||||||||||
1967 | 39.60 | 40.36 | 52.60 | 60.07 | 64.24 | 73.18 | 77.16 | 74.10 | 68.68 | 60.94 | 45.73 | 33.44 | 57.51 | |||||||||||||
1968 | 38.35 | 39.24 | 47.08 | 53.80 | 63.24 | 76.43 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.03 | f | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 36.19 | 40.16 | 46.22 | 56.32 | 65.33 | 74.67 | 78.80 | 77.24 | 70.06 | 58.86 | 45.30 | 37.92 | 57.20 | |||||||||||||
S.D. | 3.96 | 4.32 | 3.80 | 3.29 | 2.34 | 2.68 | 2.36 | 2.16 | 2.40 | 2.25 | 3.34 | 2.87 | 1.39 | |||||||||||||
SKEW | -0.47 | -0.14 | -0.06 | 0.89 | 0.66 | 0.18 | -0.16 | 0.13 | 0.38 | 0.38 | -0.51 | 0.02 | 0.31 | |||||||||||||
MAX | 44.77 | 48.78 | 53.71 | 65.05 | 71.29 | 80.93 | 83.50 | 81.45 | 75.77 | 64.61 | 51.38 | 42.82 | 60.13 | |||||||||||||
MIN | 26.02 | 30.09 | 38.94 | 49.78 | 61.69 | 68.52 | 73.85 | 73.24 | 64.73 | 54.15 | 35.63 | 32.90 | 55.01 | |||||||||||||
YRS | 40 | 40 | 37 | 40 | 40 | 40 | 41 | 41 | 40 | 38 | 38 | 38 | 24 |