YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.29 | a | 73.55 | 73.07 | a | 64.72 | 50.79 | 36.08 | 27.02 | i | 61.08 | f | ||||
1916 | 29.85 | g | 39.89 | a | 48.42 | 53.95 | 59.24 | d | 71.38 | f | 74.31 | 71.65 | 65.62 | 52.33 | g | 39.28 | ----- | z | 56.54 | d | ||||||
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.68 | 78.83 | j | 74.05 | 64.29 | i | 57.77 | e | 44.78 | 38.50 | t | 61.07 | h | |||
1918 | ----- | z | 43.92 | c | 48.87 | 53.73 | h | 55.86 | x | ----- | z | 73.06 | e | 73.16 | o | ----- | z | ----- | z | ----- | z | ----- | z | 55.28 | i | |
1919 | 15.44 | 31.59 | q | 39.26 | d | ----- | z | 65.36 | x | 71.90 | e | ----- | z | ----- | z | ----- | z | 52.33 | h | 31.81 | d | 14.17 | y | 39.60 | h | |
1920 | ----- | z | 39.80 | f | 41.02 | j | 53.36 | s | ----- | z | 70.50 | q | ----- | z | 67.46 | r | 63.58 | 51.15 | 39.35 | 28.89 | 45.74 | h | ||||
1921 | 32.57 | j | 37.14 | 46.65 | 48.96 | b | 59.88 | c | 70.33 | o | 75.00 | 69.94 | 66.27 | 56.60 | 43.17 | 36.80 | a | 54.04 | b | |||||||
1922 | 28.61 | h | 32.94 | c | 39.97 | 46.15 | 59.35 | 71.50 | 75.02 | j | 73.48 | 67.35 | 53.61 | 37.85 | g | 35.91 | b | 53.36 | c | |||||||
1923 | 35.42 | 32.66 | 37.21 | 48.35 | 60.08 | 65.37 | 76.94 | 69.92 | 61.83 | 51.48 | j | 40.72 | 30.05 | 50.78 | a | |||||||||||
1924 | 25.78 | b | 41.40 | i | 38.76 | 50.88 | 62.90 | 74.33 | d | 76.90 | a | 75.63 | 65.62 | 52.34 | 42.15 | 24.32 | 53.60 | a | ||||||||
1925 | 19.23 | 38.57 | 45.15 | d | 53.43 | 65.00 | 68.92 | 76.61 | 69.23 | 63.70 | 53.44 | 38.53 | 32.53 | 52.03 | ||||||||||||
1926 | 31.17 | e | 39.41 | 44.50 | 53.07 | 61.48 | 71.97 | 77.69 | m | 76.96 | d | 67.79 | b | 56.76 | 45.40 | 30.98 | e | 52.68 | a | |||||||
1927 | 34.91 | h | 40.06 | a | 43.02 | i | 52.68 | 62.23 | 70.13 | 75.79 | 71.82 | 65.17 | 54.82 | 45.85 | 28.69 | 56.72 | b | |||||||||
1928 | 32.87 | 36.07 | 46.02 | 50.70 | 62.47 | 70.98 | 76.57 | j | 73.26 | 68.42 | 55.29 | 39.72 | 27.48 | 51.21 | a | |||||||||||
1929 | 28.05 | 29.79 | 41.27 | c | 46.35 | 59.55 | b | 71.21 | f | 74.30 | a | 72.48 | 64.83 | 54.02 | 38.68 | 35.00 | 49.48 | a | ||||||||
1930 | 25.13 | 39.02 | 42.97 | 57.16 | b | 58.10 | 71.88 | 76.12 | c | 73.52 | 64.06 | d | 50.00 | k | 39.21 | b | 29.42 | f | 54.72 | b | ||||||
1931 | 29.18 | 38.31 | b | 44.00 | b | 54.57 | 60.37 | d | 73.75 | f | 80.13 | 76.33 | a | 69.20 | 56.19 | 36.58 | 20.81 | 51.42 | a | |||||||
1932 | 22.05 | b | 38.05 | 44.90 | 53.71 | a | 61.77 | 68.79 | a | 77.50 | 74.92 | 66.45 | 53.61 | 42.72 | 23.79 | 52.36 | ||||||||||
1933 | 18.61 | l | 23.21 | 48.00 | k | 48.37 | 56.70 | a | 74.08 | 78.60 | 76.10 | 70.72 | 59.26 | 44.02 | 35.24 | 56.63 | b | |||||||||
1934 | 35.50 | 42.34 | 52.03 | 57.52 | 66.39 | 69.23 | 79.68 | 76.05 | 66.60 | 57.35 | 42.40 | 33.94 | 56.59 | |||||||||||||
1935 | 33.65 | a | 38.23 | 43.08 | 53.67 | 59.16 | 71.70 | e | 71.16 | 70.20 | a | 63.17 | c | 52.57 | d | 38.27 | 31.06 | 52.16 | ||||||||
1936 | 31.52 | 38.22 | 43.75 | a | 51.92 | 62.61 | 74.15 | 75.29 | 74.47 | 63.71 | a | 53.60 | 38.37 | 31.58 | 53.26 | |||||||||||
1937 | 16.27 | 30.14 | 41.27 | 50.69 | a | 62.61 | ----- | z | 70.44 | 69.85 | 63.68 | 54.00 | 43.58 | 35.19 | 48.89 | a | ||||||||||
1938 | 33.44 | 36.32 | 41.08 | 51.18 | 58.65 | 70.37 | 73.74 | 74.08 | 65.20 | 53.05 | 36.52 | 33.60 | 52.27 | |||||||||||||
1939 | 29.66 | f | 23.61 | e | 36.12 | w | 51.10 | t | ----- | z | 71.98 | c | 78.20 | d | 77.18 | l | 66.64 | e | 53.90 | j | 44.75 | p | 41.35 | d | 56.36 | g |
1940 | 28.21 | b | 38.95 | 47.90 | 54.52 | a | 66.71 | 74.47 | 77.06 | v | 80.05 | 72.24 | m | ----- | z | ----- | z | ----- | z | 55.83 | e | |||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.50 | k | 34.00 | c | 34.00 | k |
1942 | 29.47 | 30.62 | b | 39.50 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.48 | g | 45.32 | 37.29 | b | 36.44 | g | ||
1943 | 33.70 | d | 40.21 | 45.79 | 58.32 | 63.15 | 69.90 | 77.87 | 74.05 | a | 68.88 | a | 59.47 | l | 40.98 | 30.84 | 54.88 | a | ||||||||
1944 | 26.63 | 34.88 | a | 41.91 | c | 47.52 | 58.84 | 67.30 | c | 74.89 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.18 | f | |||
1945 | ----- | z | 42.50 | k | 41.03 | 48.03 | 62.85 | 62.94 | n | 76.79 | 74.44 | 66.35 | 54.57 | a | 40.02 | 29.20 | a | 54.81 | c | |||||||
1946 | 30.29 | 37.43 | a | ----- | z | 62.17 | r | 59.02 | a | 72.18 | 76.15 | 75.71 | 67.05 | 52.11 | v | 37.98 | 36.39 | 54.69 | c | |||||||
1947 | 29.83 | j | 39.73 | 45.32 | 52.28 | a | 66.27 | a | 67.13 | 77.83 | a | 74.00 | 69.07 | 56.16 | 37.27 | 30.69 | 55.98 | a | ||||||||
1948 | 29.11 | 32.44 | b | 37.52 | 54.97 | 62.50 | 67.57 | 74.97 | 72.55 | 68.40 | 53.32 | 35.23 | 34.74 | 51.94 | ||||||||||||
1949 | 23.85 | 25.39 | 43.84 | 54.95 | 59.00 | 68.08 | 75.88 | a | 73.81 | 68.07 | 52.42 | 46.50 | 31.66 | 51.95 | ||||||||||||
1950 | 31.26 | 39.36 | 44.16 | 54.52 | 59.35 | 71.29 | a | 75.18 | 73.77 | 65.57 | 61.52 | 44.83 | 38.24 | 54.92 | ||||||||||||
1951 | 30.97 | 36.07 | 42.15 | 51.12 | 61.00 | 68.42 | 78.75 | a | 73.73 | 68.58 | 53.16 | 37.07 | 28.39 | 52.45 | ||||||||||||
1952 | 29.19 | 34.29 | 37.95 | 51.27 | 62.27 | 70.27 | 74.26 | 74.69 | 66.95 | 57.23 | 34.85 | 30.18 | 51.95 | |||||||||||||
1953 | 37.90 | 34.96 | 44.08 | 50.18 | 55.23 | 72.40 | a | ----- | z | 72.53 | 67.83 | c | 53.45 | 43.07 | 29.76 | 51.04 | a | |||||||||
1954 | 33.23 | 42.96 | 41.37 | 57.08 | 64.65 | 71.42 | e | 78.55 | 73.84 | 68.03 | 56.16 | 45.37 | 31.25 | a | 55.33 | |||||||||||
1955 | 30.23 | 29.00 | 41.87 | 49.48 | b | 59.20 | p | 66.19 | q | 76.18 | 74.82 | 67.63 | 56.08 | f | 40.20 | 36.52 | 49.55 | c | ||||||||
1956 | 37.45 | 33.12 | 43.10 | 50.74 | g | 63.34 | 75.38 | i | 76.63 | 72.68 | 70.43 | 55.18 | 34.75 | 30.48 | 51.72 | b | ||||||||||
1957 | 33.06 | 39.54 | 46.11 | 50.14 | a | 56.58 | 66.92 | k | 73.62 | g | 73.36 | c | 65.81 | a | 53.20 | a | 36.30 | 33.52 | a | 48.76 | b | |||||
1958 | 31.62 | j | 39.78 | a | 39.02 | 49.72 | 65.71 | 74.71 | b | 77.55 | 78.00 | 67.45 | 55.15 | 41.88 | 40.74 | 57.25 | a | |||||||||
1959 | 33.82 | 36.79 | 45.31 | 56.28 | 63.71 | 74.52 | 79.92 | 73.82 | 68.07 | 53.56 | g | 42.13 | k | 34.25 | o | 59.14 | c | |||||||||
1960 | 27.59 | n | 33.31 | 46.45 | 53.17 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.73 | k | 42.36 | a | 25.75 | a | 36.97 | h | ||
1961 | 26.56 | 39.62 | b | 42.74 | 52.30 | 61.29 | 73.02 | 77.68 | 71.73 | 63.82 | 51.89 | 40.45 | t | 21.79 | 52.95 | a | ||||||||||
1962 | 26.02 | c | 37.41 | 38.65 | 55.80 | 58.52 | a | 69.03 | 74.19 | 73.68 | 66.97 | 54.65 | 44.04 | f | 33.63 | 53.50 | a | |||||||||
1963 | 22.63 | 39.04 | 40.94 | 48.98 | i | 65.24 | 75.90 | t | 77.81 | j | 71.86 | m | 68.75 | t | 59.20 | h | 41.64 | i | 29.55 | j | 41.96 | h | ||||
1964 | 27.31 | g | 29.25 | i | 35.75 | g | 42.76 | e | 58.62 | n | 66.14 | i | 77.35 | n | 72.38 | k | 64.17 | i | 57.52 | j | 36.03 | l | 30.50 | o | 42.76 | k |
1965 | 32.44 | w | 32.28 | j | 36.89 | l | ----- | z | ----- | z | 65.75 | 74.29 | 73.03 | a | 63.42 | 58.26 | 45.67 | 32.60 | 59.00 | e | ||||||
1966 | 27.23 | 28.39 | 49.79 | b | 49.12 | 63.17 | a | 69.63 | 75.94 | 74.85 | 65.47 | 54.31 | 44.65 | 35.86 | i | 54.78 | a | |||||||||
1967 | 30.00 | h | 37.73 | 44.37 | a | 47.14 | a | 58.34 | 63.95 | 77.16 | 74.52 | 64.77 | 56.03 | b | 44.67 | 23.76 | b | 53.86 | a | |||||||
1968 | ----- | z | 38.47 | 40.63 | 45.17 | a | 56.05 | 73.16 | a | 77.37 | 72.68 | 65.77 | 55.13 | 41.95 | 24.56 | 53.72 | a | |||||||||
1969 | 32.37 | 34.30 | 37.98 | b | 53.93 | 63.40 | 68.67 | r | ----- | z | 74.26 | n | 66.77 | 47.90 | a | 41.33 | r | 36.24 | 46.61 | d | ||||||
1970 | 31.53 | 39.18 | 43.06 | d | 50.77 | 63.02 | 61.45 | 69.91 | d | ----- | z | ----- | z | 41.42 | y | 43.85 | 31.84 | 48.29 | c | |||||||
1971 | 30.92 | 34.98 | 42.30 | a | 49.25 | 57.76 | b | 68.98 | b | 76.61 | 72.65 | d | ----- | z | 47.90 | a | 40.82 | 29.28 | b | 50.13 | a | |||||
1972 | 33.20 | a | 37.98 | c | 50.84 | 51.40 | 55.58 | 62.28 | g | 67.16 | f | 63.17 | m | 57.42 | k | 43.57 | c | 29.95 | 20.26 | l | 43.22 | e | ||||
1973 | 12.56 | o | ----- | z | 32.26 | j | 38.97 | m | 48.53 | n | ----- | z | 60.94 | w | 63.38 | k | 52.71 | r | ----- | z | 35.22 | l | 23.03 | m | ----- | z |
1974 | 19.47 | o | ----- | z | 33.96 | q | 40.86 | i | 52.27 | p | 62.06 | m | 63.73 | p | 61.20 | k | 62.76 | k | 56.27 | i | 47.39 | l | 27.98 | j | ----- | z |
1975 | 25.39 | m | 30.82 | i | ----- | z | ----- | z | ----- | z | ----- | z | 75.67 | h | 72.57 | j | 59.95 | j | 53.98 | j | 34.15 | m | ----- | z | ----- | z |
1976 | 27.05 | j | 32.11 | j | 39.28 | h | 43.45 | h | 51.84 | o | ----- | z | ----- | z | ----- | z | 59.80 | h | 56.00 | v | 23.00 | x | 23.08 | f | ----- | z |
1977 | ----- | z | 31.03 | l | 40.46 | g | 54.52 | j | 57.84 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.17 | s | ----- | z |
1978 | 33.20 | f | 32.21 | d | 43.32 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.21 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.32 | 35.92 | 43.23 | 51.58 | 61.11 | 70.20 | 76.02 | 73.69 | 66.34 | 54.18 | 40.49 | 31.57 | 53.10 | |||||||||||||
S.D. | 5.22 | 4.67 | 3.53 | 3.50 | 2.99 | 3.03 | 2.36 | 2.12 | 2.04 | 3.18 | 3.94 | 4.72 | 1.60 | |||||||||||||
SKEW | -0.89 | -0.96 | 0.40 | -0.19 | -0.03 | -0.65 | -0.64 | 0.28 | -0.01 | -0.83 | -0.52 | -0.27 | 1.20 | |||||||||||||
MAX | 37.90 | 43.92 | 52.03 | 58.32 | 66.71 | 74.71 | 80.13 | 80.05 | 70.72 | 61.52 | 46.50 | 41.35 | 56.59 | |||||||||||||
MIN | 15.44 | 23.21 | 37.21 | 42.76 | 55.23 | 61.45 | 69.91 | 69.23 | 61.83 | 43.57 | 29.95 | 20.81 | 51.94 | |||||||||||||
YRS | 39 | 50 | 48 | 45 | 46 | 40 | 41 | 45 | 45 | 40 | 46 | 45 | 12 |