YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.31 | 42.87 | 31.66 | 43.28 | i | |||
1915 | 30.68 | a | 38.05 | 43.83 | a | 54.13 | 58.19 | 68.03 | j | 75.29 | 74.27 | 69.54 | b | 53.62 | r | 41.52 | a | 33.47 | 51.90 | b | ||||||
1916 | 32.50 | b | 43.00 | a | 49.52 | 54.85 | 59.61 | 68.27 | 75.59 | i | 72.23 | g | 65.02 | 52.65 | h | 35.15 | j | 30.73 | a | 50.44 | d | |||||
1917 | 27.85 | 35.56 | a | 37.58 | 48.38 | 56.73 | 70.25 | 78.81 | 74.34 | 66.38 | 54.73 | 42.85 | 35.34 | 52.40 | ||||||||||||
1918 | 28.54 | f | 36.63 | a | 47.55 | 52.58 | 57.66 | b | 76.76 | a | 76.08 | 73.35 | 66.30 | 57.52 | 38.58 | 26.43 | a | 55.40 | a | |||||||
1919 | 12.92 | 34.30 | 43.71 | b | 56.27 | f | 64.40 | a | 71.15 | 77.18 | f | 75.93 | c | 67.04 | c | 52.66 | i | 42.04 | b | 34.21 | 49.52 | c | ||||
1920 | 34.32 | c | 41.71 | a | 43.86 | b | 50.28 | 61.07 | c | 67.63 | 75.52 | a | ----- | z | 65.30 | 52.37 | d | 41.62 | a | 32.60 | a | 51.48 | a | |||
1921 | 36.23 | c | 39.87 | b | 50.47 | b | ----- | z | 60.37 | 75.00 | 78.38 | c | 74.98 | h | 67.31 | a | 58.34 | 43.98 | a | 37.38 | c | 54.73 | b | |||
1922 | 31.60 | 38.62 | d | 44.44 | e | 50.93 | a | 62.19 | 71.63 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.90 | f | |||
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 | 40.57 | a | 29.88 | a | 35.23 | j |
1925 | 28.16 | 40.88 | 47.29 | b | 55.57 | a | 65.57 | a | 71.53 | l | 75.81 | d | 68.40 | 61.75 | 54.31 | ----- | z | ----- | z | 55.30 | c | |||||
1926 | ----- | z | ----- | z | 45.71 | e | 56.76 | i | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.71 | k |
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 | 70.11 | k | 80.16 | 77.92 | 67.20 | b | 58.55 | 44.68 | 34.19 | 60.45 | f | |||||
1935 | 35.60 | 41.91 | 47.10 | b | 55.54 | b | 58.58 | 72.24 | a | 77.35 | 76.61 | c | 68.35 | 61.40 | b | 41.32 | 33.58 | 55.80 | ||||||||
1936 | 35.37 | a | 40.98 | a | 45.98 | a | 55.84 | a | 63.15 | a | 73.12 | 76.60 | 76.27 | a | 65.77 | 55.32 | 40.40 | 33.07 | b | 55.16 | ||||||
1937 | 11.15 | d | 36.71 | b | 44.10 | 51.57 | 63.37 | a | 69.57 | 76.89 | h | 75.00 | a | 69.68 | 56.02 | 43.19 | a | 37.50 | a | 50.71 | a | |||||
1938 | 34.23 | 37.74 | a | 43.39 | 52.48 | c | 56.68 | a | 68.37 | c | 73.97 | 78.75 | c | 69.22 | 54.35 | 33.82 | 35.23 | 53.19 | ||||||||
1939 | 34.29 | 30.55 | 44.90 | 54.59 | a | 62.05 | a | 70.73 | 78.42 | 74.60 | 68.05 | ----- | z | 43.73 | 35.66 | b | 54.32 | a | ||||||||
1940 | 36.15 | a | 41.02 | b | 46.74 | d | 55.61 | c | 64.70 | f | 74.10 | d | 78.25 | a | 75.64 | c | 68.43 | 57.55 | c | ----- | z | 36.29 | c | 56.98 | b | |
1941 | 36.93 | b | 43.56 | b | 45.20 | d | 49.19 | a | 61.47 | b | 67.52 | c | 74.28 | b | 72.84 | 64.17 | c | 52.93 | b | 41.33 | c | 36.00 | 53.78 | |||
1942 | 30.87 | a | 34.16 | c | 41.84 | c | 53.48 | f | 59.77 | 69.00 | e | 78.35 | 72.80 | i | ----- | z | 60.71 | b | 52.25 | b | ----- | z | 53.37 | d | ||
1943 | 41.43 | i | 45.65 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.46 | q | 42.91 | a | 37.09 | c | 41.89 | i |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.26 | g | 78.54 | d | 77.37 | d | 69.83 | 56.70 | a | 43.05 | 27.84 | i | 65.10 | g | ||
1946 | 35.16 | f | 37.96 | d | 45.67 | e | 56.41 | a | 60.53 | 73.17 | 78.47 | ----- | z | ----- | z | 53.46 | f | 41.88 | 35.24 | b | 53.67 | d | ||||
1947 | 28.37 | 38.87 | b | 46.02 | 52.52 | 64.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | 57.82 | a | 39.39 | b | 33.48 | a | 45.06 | d | |||
1948 | 33.67 | a | 37.88 | 41.90 | 57.31 | a | 61.68 | 68.52 | a | 75.37 | 73.69 | 66.98 | i | 53.58 | 37.02 | 35.61 | 52.38 | a | ||||||||
1949 | 22.95 | 30.79 | 44.29 | 54.47 | 59.61 | 69.23 | 76.98 | b | 72.80 | a | 69.80 | 52.34 | 43.77 | 29.47 | 52.21 | |||||||||||
1950 | 33.26 | 40.61 | 45.55 | 55.33 | 58.48 | d | 70.52 | i | 76.15 | 72.10 | 64.58 | 61.35 | 43.52 | 37.34 | 53.48 | a | ||||||||||
1951 | 33.98 | 37.32 | 42.89 | 52.45 | 60.74 | 67.10 | 79.21 | c | 75.72 | d | 67.74 | c | 54.67 | b | 39.17 | a | 33.60 | 53.72 | ||||||||
1952 | 36.12 | a | 36.18 | a | 40.08 | 52.97 | 61.76 | 69.35 | 75.22 | a | 75.90 | e | 67.45 | a | 57.05 | 35.92 | 31.87 | 53.32 | ||||||||
1953 | 38.05 | 35.13 | a | 45.61 | 51.71 | a | 55.70 | a | 70.54 | b | 76.90 | e | 72.92 | a | 67.88 | 54.02 | 42.47 | 28.16 | 53.26 | |||||||
1954 | 33.47 | 40.05 | 40.88 | a | 56.72 | a | 64.10 | 69.71 | a | 78.73 | c | 73.65 | a | 68.78 | 57.08 | 43.79 | a | 30.89 | 54.82 | |||||||
1955 | 29.38 | a | 31.31 | a | 42.15 | 48.88 | b | 59.38 | b | 66.65 | d | 74.27 | 75.60 | a | 67.57 | a | 57.61 | 41.36 | a | 38.64 | b | 52.73 | ||||
1956 | 39.42 | 31.96 | d | 44.00 | b | 50.52 | a | 62.52 | c | 73.23 | b | 75.78 | d | 71.79 | 69.73 | 54.72 | b | 31.72 | e | 29.60 | 52.92 | |||||
1957 | 37.26 | b | 45.00 | 46.47 | 51.50 | a | 56.77 | a | 71.34 | a | 75.73 | c | 74.45 | 65.81 | c | 54.36 | f | 38.48 | b | 35.16 | 54.36 | a | ||||
1958 | 32.71 | 41.80 | a | 41.90 | 51.03 | 64.85 | a | 72.88 | a | 77.47 | 77.87 | 68.03 | 56.80 | a | 41.22 | a | 36.18 | 55.23 | ||||||||
1959 | 33.56 | 37.14 | 43.22 | b | 55.69 | c | 60.75 | a | 73.05 | 79.17 | a | 74.29 | c | 67.83 | a | 54.63 | d | 40.47 | 34.00 | 54.48 | ||||||
1960 | 25.60 | 35.64 | 49.29 | 54.30 | 61.18 | 74.52 | 78.88 | a | 76.63 | a | 70.14 | a | 54.52 | 42.86 | a | 24.84 | b | 54.03 | ||||||||
1961 | 27.92 | 39.62 | 44.48 | a | 52.46 | b | 60.68 | 73.73 | b | 77.82 | 75.25 | a | 64.92 | 53.42 | 41.53 | 23.39 | 52.94 | |||||||||
1962 | 23.27 | 35.71 | 40.26 | 56.86 | a | 58.83 | a | 68.45 | 75.82 | 75.25 | a | 68.40 | a | 56.10 | 46.50 | 33.89 | 53.28 | |||||||||
1963 | 27.35 | 41.68 | 44.45 | a | 51.19 | a | 63.81 | 67.55 | b | 79.20 | a | 74.70 | a | 70.07 | b | 59.29 | 42.81 | a | 28.42 | 54.21 | ||||||
1964 | 29.53 | 31.57 | 40.44 | 50.29 | a | 60.47 | a | 67.88 | 78.69 | 74.42 | 67.03 | 57.13 | a | 38.13 | 33.37 | 52.41 | ||||||||||
1965 | 36.18 | 37.14 | 41.66 | b | 51.17 | 58.02 | b | 65.05 | 75.23 | a | 73.67 | a | 63.70 | 55.15 | 45.42 | 35.42 | 53.15 | |||||||||
1966 | 24.74 | 33.83 | a | 45.34 | 54.60 | 63.66 | c | 69.82 | b | 78.11 | c | 76.13 | 68.80 | 54.29 | 44.15 | 31.73 | a | 53.77 | ||||||||
1967 | 28.68 | a | 38.61 | 48.02 | a | 49.13 | 59.53 | 68.03 | 77.61 | 74.58 | a | 68.13 | 55.60 | 44.48 | 22.26 | 52.89 | ||||||||||
1968 | 13.50 | 40.19 | 46.13 | 50.72 | 59.53 | a | 69.93 | b | 75.03 | 70.65 | 65.68 | 54.82 | a | 41.30 | 26.50 | 51.16 | ||||||||||
1969 | 38.47 | 36.25 | 39.23 | 52.40 | 61.58 | 68.43 | i | 78.52 | c | 78.68 | 69.15 | 52.98 | a | 40.13 | d | 37.21 | 53.15 | a | ||||||||
1970 | 33.79 | 41.57 | a | 43.15 | 46.82 | 62.23 | 69.78 | 78.15 | 78.05 | 65.33 | a | 51.82 | 44.53 | a | 33.10 | 54.03 | ||||||||||
1971 | 32.37 | 36.81 | b | 44.05 | a | 51.62 | 56.88 | a | 69.45 | 78.97 | a | 76.50 | 66.07 | 52.26 | 39.43 | 30.11 | 52.88 | |||||||||
1972 | 35.16 | 38.64 | 50.42 | 53.65 | 61.05 | 70.02 | 77.04 | c | 74.52 | 66.95 | 56.03 | 39.78 | 32.15 | a | 54.62 | |||||||||||
1973 | 30.68 | 38.52 | 40.86 | b | 49.10 | 61.23 | 68.57 | a | 74.92 | 73.68 | a | 64.37 | 53.66 | 44.47 | 34.81 | 52.90 | ||||||||||
1974 | 32.31 | 34.41 | 48.52 | 49.19 | a | 63.08 | 74.03 | 76.06 | 73.29 | 67.53 | a | 55.48 | 41.13 | 29.16 | 53.68 | |||||||||||
1975 | 24.71 | b | 36.41 | 40.29 | e | 45.19 | f | 57.91 | d | 67.66 | a | 76.79 | 73.50 | 66.63 | 53.50 | 38.25 | b | 31.98 | 51.60 | a | ||||||
1976 | 31.34 | 41.28 | 41.03 | a | 50.36 | a | 61.81 | 68.12 | 76.81 | b | 72.75 | c | 65.60 | 51.81 | 39.47 | a | 28.52 | a | 52.41 | |||||||
1977 | 27.42 | 35.77 | 39.40 | a | 52.62 | a | 57.33 | a | 71.52 | 77.43 | a | 76.06 | 69.67 | 57.00 | 43.27 | 39.65 | a | 53.93 | ||||||||
1978 | 36.40 | 39.48 | f | 49.02 | 55.19 | n | 59.32 | 70.70 | 77.10 | 74.69 | 66.88 | 57.68 | 44.57 | 27.63 | 56.40 | b | ||||||||||
1979 | 30.76 | 36.85 | a | 43.56 | 52.73 | 59.78 | b | 68.92 | 76.02 | 71.40 | 69.43 | 57.00 | 37.42 | 31.50 | 52.95 | |||||||||||
1980 | 38.69 | 41.78 | 43.95 | 52.35 | 57.90 | 69.30 | 78.12 | b | ----- | z | 66.93 | 52.11 | 42.19 | a | 37.85 | 52.84 | a | |||||||||
1981 | 36.37 | 38.88 | 43.82 | a | 56.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.82 | h | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.10 | 38.00 | 44.28 | 52.64 | 60.54 | 70.28 | 77.09 | 74.71 | 67.26 | 55.61 | 41.56 | 32.70 | 53.49 | |||||||||||||
S.D. | 6.24 | 3.52 | 2.97 | 2.58 | 2.40 | 2.52 | 1.55 | 2.11 | 1.91 | 2.42 | 3.23 | 3.91 | 1.00 | |||||||||||||
SKEW | -1.49 | -0.15 | 0.08 | -0.04 | 0.03 | 0.48 | -0.18 | -0.36 | -0.52 | 0.49 | -0.18 | -0.65 | 0.25 | |||||||||||||
MAX | 39.42 | 45.65 | 50.47 | 57.31 | 65.57 | 76.76 | 80.16 | 78.75 | 70.14 | 61.40 | 52.25 | 39.65 | 55.80 | |||||||||||||
MIN | 11.15 | 30.55 | 37.58 | 46.82 | 55.70 | 65.05 | 73.97 | 68.40 | 61.75 | 51.81 | 31.72 | 22.26 | 51.16 | |||||||||||||
YRS | 51 | 53 | 54 | 48 | 51 | 47 | 49 | 46 | 49 | 48 | 53 | 53 | 31 |