YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.40 | 55.79 | b | 48.72 | a | 35.70 | a | 51.65 | h | |
1913 | 30.23 | a | 32.58 | b | 38.94 | 54.72 | a | 60.45 | 68.03 | 75.52 | 77.93 | a | 68.60 | 50.55 | 42.10 | a | 33.13 | 52.73 | ||||||||
1914 | 36.19 | 34.78 | a | 46.48 | 54.43 | 66.50 | a | 67.27 | 82.87 | 82.13 | 68.27 | 59.52 | b | 49.21 | a | 30.68 | 56.53 | |||||||||
1915 | 34.00 | 42.57 | 52.23 | 59.20 | 57.74 | 68.07 | c | 76.55 | 87.00 | 73.03 | 63.39 | 40.37 | 40.71 | 57.90 | ||||||||||||
1916 | 37.17 | a | ----- | z | 47.52 | 54.67 | 58.55 | 70.47 | 76.23 | 81.48 | 74.83 | 61.90 | 45.23 | 33.52 | 58.32 | a | ||||||||||
1917 | 35.61 | 42.04 | 39.84 | 48.17 | 61.94 | 77.10 | 89.38 | b | 87.79 | b | 80.97 | 71.34 | b | 60.50 | d | 52.42 | 62.26 | |||||||||
1918 | 57.12 | f | ----- | z | 60.00 | a | 68.00 | c | 82.00 | o | 86.47 | 88.57 | a | 82.81 | 82.00 | 67.33 | a | 50.93 | b | 41.94 | 69.78 | c | ||||
1919 | 42.94 | 40.82 | f | 48.47 | a | 61.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.50 | g | 40.52 | a | 27.29 | 44.07 | g | |||
1920 | 37.50 | a | 41.14 | a | 42.84 | 50.63 | 59.32 | 67.77 | 81.65 | 79.26 | 67.67 | 52.58 | 42.77 | 34.19 | d | 54.78 | ||||||||||
1921 | 34.65 | 38.18 | 47.55 | 50.87 | 64.35 | 75.69 | a | 83.27 | a | 81.45 | 63.52 | a | 62.42 | 47.18 | b | 33.70 | a | 56.90 | ||||||||
1922 | 26.33 | a | 32.00 | 41.26 | 48.43 | 62.45 | 79.41 | c | 85.16 | 80.70 | a | 75.48 | a | 60.83 | a | 41.07 | 30.68 | 55.32 | ||||||||
1923 | 35.32 | 36.07 | a | 44.68 | 54.47 | 61.26 | 65.62 | a | 82.81 | 81.55 | 72.03 | 56.23 | 52.70 | 36.55 | 56.61 | |||||||||||
1924 | 32.94 | 44.10 | 42.65 | 54.47 | 72.94 | 74.80 | 84.20 | a | 78.70 | a | 70.60 | 57.77 | 41.52 | a | 27.45 | b | 56.84 | |||||||||
1925 | 33.84 | 41.96 | 47.55 | 58.18 | b | 66.10 | 72.72 | a | 87.47 | p | 79.68 | 69.57 | 58.28 | b | ----- | z | ----- | z | 58.65 | c | ||||||
1926 | ----- | z | 44.07 | 50.43 | a | 62.13 | 63.16 | 75.00 | 84.47 | a | 77.58 | 62.85 | d | 59.71 | c | 48.74 | c | 30.70 | d | 59.90 | a | |||||
1927 | 32.04 | h | 35.19 | a | ----- | z | 44.62 | v | 52.27 | t | ----- | z | ----- | z | 73.04 | e | ----- | z | 60.77 | 45.93 | 32.52 | d | 49.49 | g | ||
1928 | 34.23 | a | 40.76 | 48.24 | n | 45.00 | u | 68.62 | r | 70.92 | e | 81.00 | k | 79.88 | e | ----- | z | 59.14 | c | 44.14 | a | 33.03 | 51.73 | e | ||
1929 | 26.97 | a | 32.60 | c | 47.15 | e | 51.09 | g | 64.86 | c | 67.94 | m | 82.38 | b | 85.14 | i | 65.90 | 62.07 | a | 46.10 | 41.13 | 52.13 | c | |||
1930 | 21.63 | a | 41.07 | 47.03 | a | 59.59 | a | 59.26 | 68.57 | 81.61 | 82.45 | 69.13 | 52.74 | 43.40 | 30.74 | 54.77 | ||||||||||
1931 | 34.52 | 39.89 | 44.16 | 55.14 | a | 67.19 | 70.33 | 83.45 | 83.29 | 68.90 | a | 58.32 | 38.00 | 31.90 | 56.26 | |||||||||||
1932 | 29.40 | a | 32.83 | 41.16 | 53.70 | 60.31 | b | 71.80 | 77.81 | 78.68 | 72.80 | 57.48 | 46.07 | 29.53 | a | 54.30 | ||||||||||
1933 | 31.61 | 28.39 | 42.55 | 53.27 | 56.32 | 70.87 | 81.42 | 79.41 | b | 65.90 | 63.00 | 48.87 | 40.45 | 55.17 | ||||||||||||
1934 | 41.13 | 48.64 | 54.65 | 62.33 | 68.55 | 70.45 | a | 81.71 | 83.26 | 65.07 | 54.75 | s | 50.97 | 37.10 | 60.35 | a | ||||||||||
1935 | 35.65 | 41.89 | 43.60 | a | 51.83 | 66.61 | 74.10 | a | 78.93 | b | 77.63 | a | 75.32 | b | 58.52 | b | 39.87 | 35.63 | a | 56.63 | ||||||
1936 | 34.13 | 25.71 | a | 42.28 | b | 58.31 | a | 69.45 | 71.23 | 81.55 | 82.03 | a | 69.97 | a | 64.55 | 50.13 | 36.15 | d | 57.12 | |||||||
1937 | 19.14 | b | 33.89 | 47.13 | a | 50.47 | 66.00 | a | 69.38 | a | 81.80 | a | 77.83 | a | 76.76 | e | 61.89 | d | 48.36 | h | 37.76 | f | 58.43 | b | ||
1938 | 35.56 | d | 38.36 | 43.47 | a | 52.87 | 62.15 | d | 71.93 | 83.00 | 76.74 | 75.59 | a | ----- | z | 37.00 | n | 36.29 | 57.59 | b | ||||||
1939 | 35.97 | 32.43 | 46.87 | 58.21 | a | 66.74 | 65.77 | 82.45 | 84.61 | 73.93 | a | 56.32 | 51.79 | a | 41.10 | 58.02 | ||||||||||
1940 | 34.90 | 39.68 | a | 48.71 | 53.79 | b | 67.92 | e | 75.87 | 81.39 | 81.97 | 68.47 | 57.57 | c | 36.40 | 41.18 | t | 58.79 | a | |||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.81 | d | 81.23 | 76.39 | 60.50 | ----- | z | ----- | z | ----- | z | 71.23 | h | |||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.50 | r | 78.81 | 76.29 | 76.26 | g | 58.94 | 47.74 | k | ----- | z | 71.34 | i | |||
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | 38.41 | a | 41.29 | 48.80 | 61.81 | 65.82 | b | 83.10 | 82.52 | 65.36 | b | ----- | z | ----- | z | 33.18 | n | 60.89 | d | |||||
1946 | 33.65 | 37.07 | 44.54 | c | 55.79 | a | 64.03 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.02 | g | ||
1947 | ----- | z | 41.21 | 50.00 | 54.37 | 68.39 | 65.93 | 80.77 | 78.00 | 70.64 | e | 56.74 | 39.17 | 35.37 | a | 58.24 | a | |||||||||
1948 | 34.13 | 35.17 | 39.65 | 49.48 | a | 57.40 | a | 69.17 | 72.55 | 74.39 | 70.43 | 58.52 | 39.03 | 27.29 | 52.27 | |||||||||||
1949 | 19.50 | a | 33.04 | 42.87 | 59.30 | 65.23 | 70.57 | 79.35 | 78.52 | 72.10 | 50.74 | 51.72 | a | 33.19 | 54.68 | |||||||||||
1950 | 19.17 | a | 35.67 | a | 38.71 | 47.73 | 57.74 | 63.87 | 76.32 | 79.17 | a | 69.83 | 56.16 | 41.17 | 39.60 | f | 53.23 | a | ||||||||
1951 | ----- | z | 34.46 | ----- | z | ----- | z | ----- | z | 64.80 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.63 | j | ||
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.71 | w | 79.31 | b | 79.77 | 73.96 | d | 68.74 | d | 41.89 | c | 35.45 | b | 63.19 | f | |
1953 | 41.00 | f | 39.05 | g | 44.93 | a | 54.96 | f | 57.23 | 62.87 | 79.41 | b | 75.78 | d | 75.88 | f | 62.55 | 47.04 | b | 36.94 | 58.34 | d | ||||
1954 | 35.29 | 43.89 | 43.24 | f | 53.07 | b | 63.42 | 62.40 | 78.00 | b | 71.85 | d | 72.55 | s | 53.50 | i | 49.13 | 36.47 | a | 54.84 | c | |||||
1955 | 31.32 | 33.93 | 36.28 | b | 46.15 | d | 56.43 | c | 69.79 | a | 74.39 | 80.67 | m | 67.86 | b | 57.43 | a | 35.48 | a | 34.07 | a | 49.38 | a | |||
1956 | 34.69 | e | 29.31 | m | 42.81 | d | 57.23 | 62.54 | c | 67.00 | 78.87 | 74.00 | n | 71.10 | a | 53.87 | 41.73 | 38.38 | b | 54.82 | b | |||||
1957 | 24.74 | 37.93 | 45.32 | 54.34 | a | 61.68 | 68.80 | 76.20 | a | 73.83 | b | 75.73 | d | 53.10 | a | 40.93 | 35.92 | g | 55.69 | a | ||||||
1958 | 34.77 | 42.96 | a | 43.00 | 50.20 | 68.10 | b | 69.07 | 78.00 | 82.97 | 67.52 | a | 61.57 | a | 41.32 | b | 40.00 | a | 56.62 | |||||||
1959 | 35.90 | 36.78 | a | 45.09 | h | ----- | z | 58.08 | g | 68.46 | b | 80.65 | e | ----- | z | ----- | z | ----- | z | 44.17 | 37.77 | 50.62 | f | |||
1960 | 30.65 | 36.38 | 46.42 | 54.50 | 59.77 | 74.53 | 88.87 | a | 74.87 | 73.00 | c | 57.81 | 42.90 | 36.74 | 56.37 | |||||||||||
1961 | 37.90 | 41.48 | a | 44.48 | 52.07 | 60.74 | 78.53 | 84.84 | 86.48 | 64.97 | 55.55 | 41.30 | 32.32 | 56.72 | ||||||||||||
1962 | 29.83 | a | 37.39 | 42.10 | 58.67 | 56.23 | 70.23 | 79.84 | 78.03 | a | 74.03 | 57.19 | 44.50 | 38.55 | 55.55 | |||||||||||
1963 | 29.61 | 48.00 | 46.60 | a | 52.33 | 64.39 | 68.60 | 76.81 | 81.16 | 78.38 | a | 62.67 | a | 44.10 | 35.32 | 57.33 | ||||||||||
1964 | 33.68 | 39.86 | 42.84 | 50.73 | 61.90 | 68.47 | 80.58 | 74.57 | a | 65.97 | 62.81 | 42.37 | 33.87 | 54.80 | ||||||||||||
1965 | 35.52 | 40.19 | a | 43.42 | 56.43 | ----- | z | ----- | z | 79.57 | q | 77.03 | 62.97 | 65.58 | 47.45 | a | 35.73 | a | 51.59 | c | ||||||
1966 | 34.94 | 37.75 | 45.00 | 53.87 | 65.97 | a | 65.80 | 77.74 | 79.81 | 73.43 | 57.00 | 44.07 | 37.03 | 56.03 | ||||||||||||
1967 | 36.61 | 41.64 | 42.42 | 46.47 | 58.81 | 69.67 | 82.81 | 87.06 | 78.83 | 56.68 | 48.23 | 32.39 | 56.80 | |||||||||||||
1968 | 33.19 | 41.93 | 50.55 | 50.13 | 60.00 | 68.37 | 82.58 | 73.87 | 67.30 | 55.19 | 40.83 | 31.68 | 54.64 | |||||||||||||
1969 | 28.71 | 34.64 | 44.71 | 53.80 | 63.48 | 71.73 | 78.16 | 80.70 | d | 70.97 | 52.03 | 47.13 | 38.29 | 55.36 | ||||||||||||
1970 | 33.35 | 44.18 | 42.65 | 46.17 | 61.23 | 73.60 | 80.84 | 82.42 | 62.93 | 55.61 | 43.07 | 32.94 | 54.91 | |||||||||||||
1971 | 36.16 | 40.89 | 40.03 | 51.40 | 62.97 | 61.93 | a | 79.26 | 86.45 | 63.93 | 53.84 | 41.03 | 32.87 | 54.23 | ||||||||||||
1972 | 31.26 | 37.69 | 47.81 | 48.70 | 62.33 | a | 70.13 | 78.29 | 81.90 | 64.00 | 57.19 | 42.77 | 28.77 | 54.24 | ||||||||||||
1973 | 32.94 | 42.39 | 45.97 | 53.13 | 65.39 | 71.57 | 83.29 | 81.29 | 68.47 | 57.74 | 37.93 | 37.48 | 56.47 | |||||||||||||
1974 | 29.26 | 39.68 | 43.61 | 51.70 | 57.58 | 75.43 | 78.45 | 80.23 | 75.40 | 63.19 | 44.50 | 37.90 | 56.41 | |||||||||||||
1975 | 34.13 | 35.79 | 41.06 | 44.97 | 58.06 | 65.40 | 81.65 | 77.39 | 72.13 | 52.52 | 41.97 | 39.58 | 53.72 | |||||||||||||
1976 | 37.16 | 38.14 | 41.19 | 51.50 | 64.10 | 64.37 | 79.20 | a | 73.06 | 75.00 | 60.58 | 48.83 | 39.35 | 56.04 | ||||||||||||
1977 | 31.74 | 46.57 | 42.29 | 59.77 | 56.26 | 74.60 | 76.65 | 82.48 | 63.93 | 56.52 | 40.57 | 35.94 | 55.61 | |||||||||||||
1978 | 36.23 | 41.25 | 51.19 | 50.73 | 56.87 | 70.80 | 77.45 | 74.94 | 65.10 | 61.03 | 36.83 | 30.03 | 54.37 | |||||||||||||
1979 | 23.00 | 34.86 | 46.68 | 50.33 | 62.03 | 70.80 | 80.45 | 79.35 | 75.17 | 60.00 | 41.00 | 39.45 | 55.26 | |||||||||||||
1980 | 29.77 | 39.00 | 41.77 | 57.53 | 58.16 | 62.80 | 76.23 | 73.61 | 69.53 | 60.23 | 44.10 | 39.77 | a | 54.38 | ||||||||||||
1981 | 40.33 | a | 40.04 | 48.58 | 52.57 | 57.94 | 62.93 | 76.19 | 83.06 | 72.13 | 53.23 | 47.30 | ----- | z | 57.66 | a | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 32.64 | 38.49 | 44.91 | 53.67 | 62.25 | 69.92 | 80.42 | 79.64 | 70.27 | 58.69 | 44.31 | 35.35 | 55.77 | |||||||||||||
S.D. | 5.10 | 4.52 | 4.11 | 4.55 | 3.96 | 4.62 | 3.41 | 3.81 | 4.86 | 4.32 | 4.66 | 4.40 | 1.69 | |||||||||||||
SKEW | -1.02 | -0.24 | 0.95 | 0.55 | 0.34 | 0.78 | 0.38 | 0.04 | 0.21 | 0.46 | 0.71 | 0.77 | 1.14 | |||||||||||||
MAX | 42.94 | 48.64 | 60.00 | 68.00 | 72.94 | 86.47 | 89.38 | 87.79 | 82.00 | 71.34 | 60.50 | 52.42 | 62.26 | |||||||||||||
MIN | 19.14 | 25.71 | 36.28 | 44.97 | 56.23 | 61.93 | 72.55 | 71.85 | 60.50 | 50.55 | 35.48 | 27.29 | 52.27 | |||||||||||||
YRS | 57 | 59 | 59 | 58 | 57 | 60 | 60 | 60 | 59 | 59 | 60 | 57 | 39 |