YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.98 | a | 59.85 | 54.40 | 36.73 | 30.39 | 50.47 | g | ||||
1919 | 29.23 | a | 30.23 | 39.00 | c | 48.70 | c | ----- | z | 63.65 | 71.29 | 71.85 | a | ----- | z | ----- | z | ----- | z | ----- | z | 50.57 | e | |||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | 48.42 | 59.02 | 68.97 | 75.03 | 70.76 | 66.34 | b | 58.12 | a | 39.92 | 37.80 | a | 58.26 | c | ||||||
1941 | 34.23 | a | 38.16 | 37.29 | 45.02 | 58.10 | a | 63.70 | 68.43 | c | 68.90 | b | 61.50 | a | 50.32 | a | 40.79 | k | ----- | z | 52.56 | b | ||||
1942 | ----- | z | 28.57 | 35.52 | 48.23 | d | 57.43 | b | 64.19 | a | 69.77 | 66.97 | 59.17 | a | 49.93 | b | 46.13 | 36.98 | 51.17 | a | ||||||
1943 | 35.02 | a | 40.19 | d | 39.73 | 55.23 | b | 55.50 | a | 68.80 | c | 73.56 | 72.72 | a | 64.43 | 55.72 | f | 44.18 | 34.94 | 53.12 | a | |||||
1944 | 34.02 | 35.33 | 38.27 | a | 42.78 | 57.10 | a | 66.20 | 71.23 | 72.05 | 65.15 | 54.45 | 40.89 | b | 33.58 | 50.92 | ||||||||||
1945 | 31.25 | s | ----- | z | ----- | z | 44.45 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.45 | k | |
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 | 61.81 | o | 63.63 | 74.74 | 72.56 | 64.68 | 53.66 | 40.75 | 35.61 | 57.95 | e | |||||||
1952 | 38.13 | 34.95 | 36.31 | 48.00 | 58.21 | 73.55 | a | 72.58 | 72.60 | 65.62 | 54.42 | 34.92 | 32.79 | 51.84 | ||||||||||||
1953 | 38.44 | 33.93 | 44.05 | 46.53 | 54.27 | a | 75.07 | 74.39 | 70.77 | 68.27 | 55.60 | a | 45.43 | 32.68 | a | 53.29 | ||||||||||
1954 | 37.87 | 44.21 | 39.97 | b | 56.70 | b | 56.81 | 71.08 | 75.53 | 72.55 | 69.57 | 56.35 | 46.14 | a | 36.89 | d | 55.31 | |||||||||
1955 | 33.48 | 33.09 | 42.63 | 51.77 | f | 57.59 | b | 63.15 | 71.55 | b | 70.57 | p | 66.69 | c | 56.79 | b | 39.36 | b | 40.39 | 50.47 | b | |||||
1956 | 38.45 | a | 30.36 | 40.78 | b | 47.43 | 62.05 | 71.67 | 71.26 | 68.13 | l | 68.17 | 57.43 | h | 34.83 | o | 37.15 | 51.92 | c | |||||||
1957 | 32.97 | a | 43.41 | a | ----- | z | 44.22 | 53.58 | a | 64.53 | 72.18 | a | 71.23 | a | ----- | z | ----- | z | ----- | z | 40.60 | a | 52.84 | d | ||
1958 | 33.00 | a | 38.45 | 32.57 | a | 44.67 | 61.44 | 72.44 | v | 71.53 | b | 73.32 | a | 65.65 | 54.56 | 44.15 | 38.60 | b | 50.72 | a | ||||||
1959 | 31.10 | 35.15 | a | 38.28 | a | 48.32 | 58.58 | 68.84 | a | 70.69 | b | 72.16 | 62.14 | i | 50.73 | a | 40.09 | a | 35.21 | 49.92 | a | |||||
1960 | 28.42 | 23.09 | 37.58 | a | 51.91 | a | 56.97 | 68.60 | 71.77 | 73.03 | b | 65.72 | 53.26 | 43.67 | 31.25 | e | 50.44 | |||||||||
1961 | 31.17 | a | 33.54 | 38.74 | 47.67 | 58.66 | 67.30 | 70.70 | d | 70.00 | 60.46 | b | 53.57 | b | 37.26 | a | 30.53 | a | 49.97 | |||||||
1962 | 25.85 | 39.82 | 38.15 | a | 51.57 | 65.29 | n | 66.43 | 72.06 | 75.53 | 64.71 | d | 58.03 | a | 45.00 | a | 37.76 | 52.27 | a | |||||||
1963 | 24.76 | 37.14 | 41.95 | 54.75 | 64.32 | 71.15 | 77.95 | 72.08 | 67.20 | ----- | z | 46.05 | 32.81 | 53.65 | a | |||||||||||
1964 | ----- | z | 24.62 | 33.93 | a | ----- | z | ----- | z | 68.12 | 77.32 | ----- | z | 64.07 | 56.15 | 41.22 | 35.32 | 50.09 | d | |||||||
1965 | 36.15 | 32.27 | 30.29 | 51.55 | a | 58.72 | a | 65.03 | 72.29 | 69.27 | 60.48 | a | 55.87 | 48.28 | 39.05 | 51.60 | ||||||||||
1966 | 29.02 | 29.96 | 44.11 | 49.26 | a | 60.31 | 69.09 | a | 76.65 | 69.50 | a | 64.12 | b | 52.55 | 45.52 | c | 33.79 | 51.99 | ||||||||
1967 | 36.44 | 35.70 | 47.57 | b | 54.05 | b | 56.56 | 66.18 | 72.18 | 67.11 | 61.28 | 55.97 | 42.60 | 28.15 | a | 51.98 | ||||||||||
1968 | 34.89 | 35.95 | 41.17 | b | 46.45 | 54.45 | 70.84 | b | 71.83 | b | ----- | z | ----- | z | ----- | z | ----- | z | 35.28 | a | 48.86 | d | ||||
1969 | 40.40 | 36.79 | 31.74 | 53.40 | a | 60.87 | 63.68 | 73.50 | 73.16 | 65.42 | 46.95 | 40.62 | 34.77 | 51.78 | ||||||||||||
1970 | 32.23 | 40.09 | 35.87 | 46.88 | 61.40 | 67.44 | d | 72.50 | 72.93 | a | 63.02 | 47.30 | a | 42.22 | a | 38.66 | 51.71 | |||||||||
1971 | 36.95 | c | 32.89 | 42.21 | 48.80 | c | 56.30 | a | 72.02 | a | ----- | z | ----- | z | ----- | z | 51.04 | d | 40.93 | b | 33.05 | b | 46.02 | c | ||
1972 | 35.12 | a | 38.98 | 46.87 | 51.33 | 57.32 | 69.93 | 72.45 | c | 70.25 | a | 65.55 | b | 53.90 | 33.17 | a | ----- | z | 54.08 | a | ||||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.16 | b | 45.53 | 34.29 | b | 45.33 | i | |
1974 | 29.92 | a | ----- | z | ----- | z | 50.48 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.20 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.49 | 34.88 | 38.98 | 49.14 | 58.15 | 67.88 | 72.78 | 71.35 | 64.46 | 53.75 | 42.03 | 35.12 | 51.89 | |||||||||||||
S.D. | 4.07 | 5.13 | 4.38 | 3.65 | 2.61 | 3.33 | 2.26 | 2.01 | 2.79 | 3.04 | 3.81 | 3.14 | 1.43 | |||||||||||||
SKEW | -0.40 | -0.39 | -0.01 | 0.32 | 0.39 | 0.27 | 0.65 | -0.48 | -0.31 | -0.74 | -0.56 | -0.18 | 1.12 | |||||||||||||
MAX | 40.40 | 44.21 | 47.57 | 56.70 | 64.32 | 75.07 | 77.95 | 75.53 | 69.57 | 58.12 | 48.28 | 40.60 | 55.31 | |||||||||||||
MIN | 24.76 | 23.09 | 30.29 | 42.78 | 53.58 | 63.15 | 68.43 | 66.97 | 59.17 | 46.95 | 33.17 | 28.15 | 49.97 | |||||||||||||
YRS | 25 | 26 | 25 | 27 | 24 | 27 | 27 | 24 | 24 | 24 | 25 | 27 | 11 |