YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.68 | n | 34.40 | 18.71 | 26.55 | j | ||
1920 | 25.90 | 34.50 | 40.98 | 44.84 | e | 55.68 | c | 62.88 | 73.74 | 70.19 | 59.45 | 46.32 | 35.88 | 31.13 | 48.46 | |||||||||||
1921 | 29.13 | 30.86 | 43.84 | 47.22 | 57.70 | a | 67.28 | a | 72.03 | 70.08 | 53.70 | 47.11 | 40.37 | 27.80 | a | 48.93 | ||||||||||
1922 | 12.00 | 27.24 | a | 36.42 | 45.17 | 54.24 | 67.23 | 72.50 | h | 70.52 | 61.08 | 49.68 | 33.35 | 25.95 | a | 43.90 | a | |||||||||
1923 | 31.73 | 26.71 | 38.77 | 47.53 | 55.50 | 60.71 | a | 71.16 | 67.98 | 60.38 | 46.53 | 36.62 | 27.57 | q | 49.42 | a | ||||||||||
1924 | ----- | z | ----- | z | ----- | z | 50.12 | d | 61.18 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.78 | u | 19.46 | c | 43.59 | i | |
1925 | 25.94 | 36.83 | v | 42.07 | d | 49.30 | j | 58.48 | a | 58.45 | t | 74.07 | a | 67.07 | c | 61.05 | t | ----- | z | 35.85 | g | 32.43 | c | 50.01 | f | |
1926 | 25.74 | b | 38.41 | 43.10 | g | 53.80 | 57.30 | a | 67.20 | 73.10 | 71.00 | j | 53.73 | 49.73 | 40.83 | 25.90 | a | 48.57 | b | |||||||
1927 | 25.94 | 37.34 | 39.81 | 46.41 | c | 54.27 | a | 65.32 | 70.30 | d | 67.84 | 57.10 | 47.97 | ----- | z | 24.31 | o | 51.23 | b | |||||||
1928 | 26.27 | k | 30.25 | o | 43.84 | 46.28 | e | 62.20 | a | 64.85 | g | 72.95 | 67.13 | 59.56 | c | 48.69 | 36.65 | 17.34 | c | 50.52 | c | |||||
1929 | 17.18 | a | 20.83 | a | 41.60 | b | 45.72 | 55.53 | a | 62.90 | 72.60 | 73.84 | 56.98 | 47.74 | 31.88 | a | 32.44 | 46.60 | ||||||||
1930 | 11.40 | 36.69 | a | 43.81 | 53.13 | 55.92 | a | 62.63 | 73.81 | 71.94 | 58.47 | n | 45.97 | 31.73 | 21.33 | a | 46.21 | a | ||||||||
1931 | 24.95 | a | 32.96 | 42.39 | 48.87 | 60.70 | a | 66.03 | 74.45 | 71.50 | 59.42 | 48.77 | 32.80 | 22.94 | 48.81 | |||||||||||
1932 | 21.53 | 23.83 | 41.13 | 49.13 | 57.00 | 66.87 | 71.06 | 67.05 | 58.57 | 47.98 | 37.00 | 20.73 | 46.82 | |||||||||||||
1933 | 25.15 | 16.96 | 38.81 | 47.57 | 52.58 | 68.30 | 74.02 | 67.13 | 57.41 | a | 51.35 | 36.50 | 36.71 | 47.71 | ||||||||||||
1934 | 35.66 | 39.34 | 47.31 | 55.62 | 62.66 | 64.40 | 73.37 | a | 72.82 | a | 58.58 | 51.53 | 41.55 | 30.82 | 52.80 | |||||||||||
1935 | 27.58 | 32.23 | 38.65 | 48.50 | 57.08 | 65.45 | 70.89 | 68.18 | 59.65 | 47.40 | 29.97 | 22.85 | 47.37 | |||||||||||||
1936 | 26.56 | 24.81 | 38.62 | a | 51.93 | 60.58 | 65.20 | 72.94 | 69.60 | 57.05 | 50.23 | 29.72 | a | 27.66 | 47.91 | |||||||||||
1937 | 7.74 | 26.00 | 41.71 | 47.07 | 59.06 | 62.78 | 73.98 | 68.06 | 59.97 | 51.10 | 40.77 | 34.35 | 47.72 | |||||||||||||
1938 | 32.40 | 37.36 | 40.71 | 49.97 | 56.39 | 64.48 | 71.79 | 66.85 | 62.58 | 49.27 | 30.98 | 29.23 | a | 49.34 | ||||||||||||
1939 | 29.42 | 29.89 | 42.53 | 50.88 | 59.23 | 60.03 | 72.27 | 69.69 | 59.33 | 48.82 | 33.62 | 34.05 | 49.15 | |||||||||||||
1940 | 29.90 | 36.52 | 44.35 | 49.43 | 58.47 | 68.14 | a | 71.90 | 70.16 | 60.58 | 50.66 | 34.60 | 30.39 | 50.43 | ||||||||||||
1941 | 29.76 | 36.34 | 44.06 | 49.03 | a | 57.98 | 62.55 | 73.16 | 68.23 | 55.25 | 48.50 | 37.83 | 33.60 | 49.69 | ||||||||||||
1942 | 21.20 | a | 30.50 | 38.16 | 49.70 | 53.44 | 60.63 | 72.74 | 69.71 | 60.32 | 50.70 | a | 37.27 | 32.92 | 48.11 | |||||||||||
1943 | 27.24 | 33.16 | 39.84 | 52.80 | 52.90 | 59.93 | 69.98 | 67.94 | 62.37 | 50.27 | 36.75 | 30.62 | a | 48.65 | ||||||||||||
1944 | 19.44 | 34.21 | 39.18 | 49.17 | 57.10 | 60.20 | 69.77 | 67.68 | ----- | z | ----- | z | ----- | z | ----- | z | 49.59 | d | ||||||||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.54 | c | 60.09 | c | 47.43 | b | 40.39 | b | 26.78 | b | 48.45 | g |
1955 | 24.50 | b | 28.07 | a | 36.45 | a | 45.08 | d | 54.71 | b | 67.09 | c | 70.00 | c | 71.17 | b | 60.41 | a | 49.58 | f | 31.93 | b | 31.92 | 47.39 | a | |
1956 | 27.14 | c | 24.62 | a | 41.35 | d | 49.78 | a | 60.36 | c | 63.76 | a | 72.50 | c | 68.70 | a | 60.48 | d | 48.44 | d | 33.74 | a | 29.76 | b | 48.39 | |
1957 | 16.93 | d | 31.17 | b | 43.37 | 49.64 | b | 58.43 | c | 65.89 | b | 70.83 | a | 68.59 | b | 61.10 | a | 47.60 | a | 34.52 | 33.34 | 48.45 | ||||
1958 | 30.55 | 39.32 | 38.39 | 46.78 | 61.65 | 64.87 | 70.61 | 72.03 | 57.85 | 48.10 | j | 36.48 | 34.97 | 50.32 | a | |||||||||||
1959 | 32.02 | a | 35.71 | 38.05 | c | 48.03 | a | 49.16 | b | 66.25 | h | 73.00 | i | 66.77 | 56.06 | d | 48.02 | b | 33.81 | a | 24.83 | a | 43.25 | b | ||
1960 | 20.61 | d | 31.52 | a | 43.63 | d | ----- | z | 51.25 | c | 65.21 | f | 75.04 | c | ----- | z | 58.25 | t | 46.82 | c | 36.71 | d | 30.00 | a | 41.95 | d |
1961 | 24.56 | 38.24 | c | 43.45 | a | 48.04 | b | 53.64 | c | 74.84 | n | 71.62 | k | 73.12 | a | 56.75 | b | 48.45 | b | 35.57 | b | 30.08 | 45.19 | b | ||
1962 | 20.90 | a | 30.20 | a | 39.98 | 52.70 | 56.65 | 66.10 | 70.42 | a | 69.32 | 61.97 | 49.66 | 39.70 | 34.05 | 49.30 | ||||||||||
1963 | 24.13 | 41.59 | 42.27 | 45.28 | 59.37 | a | 63.86 | a | 69.42 | a | 70.03 | 64.72 | 55.55 | c | 38.65 | f | 27.21 | 51.22 | a | |||||||
1964 | 25.35 | 27.17 | 38.84 | 47.03 | 54.95 | 62.67 | 71.90 | 67.15 | 57.80 | 49.73 | a | 38.43 | i | 32.94 | 48.68 | a | ||||||||||
1965 | 31.02 | 36.70 | 38.74 | 51.32 | 55.06 | 64.50 | 70.40 | 67.80 | a | 56.80 | 52.08 | g | 40.86 | b | 28.89 | 49.28 | a | |||||||||
1966 | 33.65 | 34.21 | 42.08 | 50.05 | a | 59.90 | 63.35 | 71.89 | 70.08 | 65.13 | 47.31 | 41.53 | 32.84 | 51.00 | ||||||||||||
1967 | 34.89 | 38.36 | 41.13 | 43.66 | a | 57.21 | 65.18 | 75.23 | 74.08 | 65.52 | 48.13 | 39.87 | 25.06 | g | 53.02 | a | ||||||||||
1968 | 28.81 | 39.64 | 44.66 | 46.43 | 56.47 | 66.65 | 73.62 | a | 66.63 | 60.42 | 47.28 | a | 39.38 | 32.45 | 50.20 | |||||||||||
1969 | 27.84 | 31.05 | 40.34 | 50.52 | 61.08 | 65.65 | 72.10 | 70.56 | 62.12 | 45.81 | 37.17 | 32.95 | 49.77 | |||||||||||||
1970 | 34.02 | 38.84 | 40.89 | ----- | z | ----- | z | ----- | z | ----- | z | 70.55 | 54.80 | 44.42 | 38.70 | 28.48 | a | 43.84 | d | |||||||
1971 | 31.32 | 35.29 | 36.47 | a | 47.23 | 58.50 | 62.23 | b | 72.77 | 74.87 | 55.14 | a | 46.94 | 35.80 | 28.03 | l | 50.60 | a | ||||||||
1972 | ----- | z | ----- | z | ----- | z | 45.87 | 59.60 | 66.85 | 70.71 | 70.12 | j | 56.47 | 49.73 | 38.05 | 21.31 | 51.07 | d | ||||||||
1973 | 26.63 | 35.46 | 42.45 | 48.12 | 58.63 | a | 65.25 | f | 72.43 | c | 70.62 | g | 57.95 | i | 47.82 | a | 37.30 | 34.31 | 44.79 | c | ||||||
1974 | 25.87 | 34.61 | 40.58 | 46.78 | c | 55.30 | c | 69.80 | e | 70.63 | e | 68.19 | b | 60.38 | a | 47.57 | h | 37.66 | b | 28.96 | g | 50.98 | b | |||
1975 | 24.30 | f | 33.31 | d | 39.11 | c | 41.76 | g | 55.74 | j | 62.20 | g | 76.12 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.21 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.81 | 32.66 | 40.95 | 48.62 | 57.16 | 64.58 | 72.16 | 69.47 | 59.18 | 48.60 | 36.35 | 28.94 | 48.89 | |||||||||||||
S.D. | 6.25 | 5.57 | 2.47 | 2.67 | 3.01 | 2.51 | 1.53 | 2.21 | 2.89 | 2.00 | 3.25 | 5.01 | 1.42 | |||||||||||||
SKEW | -0.96 | -0.75 | 0.16 | 0.51 | -0.34 | -0.18 | 0.08 | 0.73 | 0.14 | 0.92 | -0.23 | -0.73 | 0.80 | |||||||||||||
MAX | 35.66 | 41.59 | 47.31 | 55.62 | 62.66 | 69.80 | 75.23 | 74.87 | 65.52 | 55.55 | 41.55 | 36.71 | 52.80 | |||||||||||||
MIN | 7.74 | 16.96 | 36.42 | 43.66 | 49.16 | 59.93 | 69.42 | 66.63 | 53.70 | 44.42 | 29.72 | 17.34 | 46.60 | |||||||||||||
YRS | 42 | 42 | 43 | 42 | 44 | 37 | 40 | 41 | 40 | 39 | 41 | 41 | 22 |