YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.82 | s | 37.04 | d | 37.04 | k |
1909 | 32.03 | 46.64 | 57.55 | 60.53 | 68.45 | 81.97 | 87.32 | 91.35 | 80.57 | 64.68 | 46.10 | 34.71 | 62.66 | |||||||||||||
1910 | 33.61 | 36.32 | 60.45 | 67.03 | 74.97 | a | 80.20 | 93.16 | ----- | z | ----- | z | ----- | z | 54.07 | a | 43.43 | a | 60.36 | c | ||||||
1911 | 40.17 | a | 40.50 | 59.55 | 64.77 | 67.97 | 78.04 | b | 91.23 | 89.94 | 82.27 | o | 65.10 | 42.37 | 37.23 | 61.53 | a | |||||||||
1912 | 37.71 | 44.66 | 53.61 | 64.30 | 72.68 | 83.17 | 85.37 | a | 85.68 | 74.53 | 63.10 | 48.00 | a | 41.68 | 62.87 | |||||||||||
1913 | 33.33 | a | 37.11 | 46.84 | 65.10 | 69.83 | b | 78.10 | 86.61 | 92.56 | f | 80.93 | 57.78 | d | 47.80 | e | 35.96 | d | 58.13 | a | ||||||
1914 | 40.85 | d | 43.18 | 58.84 | 65.13 | 76.48 | 76.87 | 96.68 | l | 93.30 | a | 76.87 | 64.00 | k | 50.91 | h | 34.41 | b | 62.88 | c | ||||||
1915 | 35.10 | b | 47.93 | 60.52 | 68.67 | 68.85 | d | ----- | z | ----- | z | 91.61 | c | 74.68 | e | 67.39 | ----- | z | 48.67 | v | 64.34 | d | ||||
1916 | 25.65 | 39.03 | 58.21 | l | 66.43 | 68.10 | 81.65 | g | 95.64 | q | 89.00 | 77.89 | c | 58.74 | h | 46.68 | h | 35.32 | c | 57.35 | e | |||||
1917 | 35.19 | 43.04 | 45.45 | 59.93 | 69.86 | c | 83.83 | x | 91.81 | 91.80 | u | 81.87 | 65.26 | 53.91 | h | 44.42 | e | 59.65 | c | |||||||
1918 | ----- | z | ----- | z | ----- | z | 67.53 | k | 70.19 | e | 91.58 | f | 92.85 | e | 83.19 | e | 81.81 | d | 64.66 | b | 45.23 | 41.16 | l | 72.99 | f | |
1919 | 39.89 | c | 40.92 | c | 51.27 | a | 62.56 | c | 69.11 | c | 79.56 | c | 92.41 | d | 86.60 | a | 73.16 | e | 57.82 | c | 41.25 | b | 27.73 | e | 60.19 | |
1920 | 34.60 | a | 46.91 | g | 52.39 | 59.21 | a | 69.10 | 78.76 | a | 94.29 | 90.71 | 77.60 | 59.31 | e | 47.48 | e | 40.55 | 64.00 | a | ||||||
1921 | 40.84 | 43.81 | a | 56.74 | 63.79 | a | 74.13 | 84.47 | 89.78 | d | 92.33 | a | 69.28 | a | 71.90 | 50.50 | b | 39.83 | a | 64.78 | ||||||
1922 | 36.57 | a | 41.11 | a | 51.32 | c | 61.55 | a | 73.30 | a | 90.21 | a | 94.77 | 93.48 | 86.63 | 70.19 | 45.50 | j | 29.39 | c | 66.23 | a | ||||
1923 | 38.82 | c | 29.54 | d | 51.00 | h | ----- | z | 68.10 | a | 73.19 | c | 94.30 | a | 91.63 | a | 85.63 | 65.93 | a | 52.45 | a | 42.93 | a | 64.25 | b | |
1924 | 36.87 | a | 49.72 | 52.90 | a | 62.77 | 82.37 | a | 84.07 | 93.29 | 90.13 | 82.14 | b | 67.36 | c | 48.91 | g | 31.87 | 66.68 | a | ||||||
1925 | 42.71 | 50.57 | 54.39 | 67.77 | 77.14 | b | 81.73 | 94.83 | b | 92.52 | 80.07 | 63.89 | m | 51.87 | o | 43.61 | c | 68.53 | b | |||||||
1926 | 38.07 | a | 50.50 | 60.00 | d | 74.20 | 73.32 | 83.96 | c | 95.23 | 90.29 | 70.97 | 65.33 | m | 50.62 | f | 41.03 | b | 67.76 | b | ||||||
1927 | 37.45 | 48.23 | b | 53.10 | b | 63.73 | d | 64.45 | 80.80 | 91.06 | 89.06 | 73.07 | 63.45 | k | 50.52 | g | 35.32 | 63.63 | b | |||||||
1928 | 37.48 | 45.70 | b | 57.87 | 62.24 | a | 82.87 | 80.53 | 93.58 | 90.23 | 84.17 | a | 67.59 | b | 49.57 | 42.27 | a | 66.18 | ||||||||
1929 | 33.26 | 38.50 | 57.07 | b | 61.04 | b | 72.58 | 78.10 | a | 92.26 | 98.47 | a | 79.48 | c | 69.67 | a | 48.30 | c | 45.64 | c | 64.53 | |||||
1930 | 29.55 | 49.59 | a | 55.19 | 71.62 | a | 72.03 | 78.93 | 92.57 | a | 94.68 | 80.00 | 61.73 | a | 53.60 | j | 35.93 | a | 65.62 | a | ||||||
1931 | 40.57 | a | 47.43 | 55.14 | b | 66.30 | 79.77 | a | 83.80 | 94.10 | 94.81 | 78.93 | 67.81 | 46.93 | a | 35.77 | 65.95 | |||||||||
1932 | 38.71 | 40.90 | 51.03 | 64.50 | 71.71 | 82.70 | 88.87 | 90.30 | a | 83.07 | a | 63.68 | 49.23 | 37.00 | 63.47 | |||||||||||
1933 | 41.97 | 38.64 | 55.38 | b | 63.57 | 68.10 | 82.20 | 94.18 | i | 93.52 | b | 77.86 | b | 68.94 | 52.29 | f | 47.13 | 63.73 | b | |||||||
1934 | 48.19 | 54.77 | b | 65.19 | 74.97 | 81.61 | 81.90 | a | 93.52 | 93.08 | e | 79.83 | f | 68.58 | 60.35 | m | 43.28 | b | 70.51 | b | ||||||
1935 | 40.55 | 48.96 | 51.97 | a | 61.23 | 75.90 | 81.97 | 91.90 | b | 90.83 | a | 88.67 | 65.00 | d | 44.57 | 40.29 | 65.15 | |||||||||
1936 | 42.12 | e | 32.72 | 53.97 | 69.00 | 80.19 | 82.10 | a | 95.87 | 94.45 | 81.43 | 74.19 | 48.37 | 42.81 | 66.44 | |||||||||||
1937 | 25.83 | a | 43.00 | a | 58.13 | 60.83 | 79.13 | 83.53 | 94.55 | 89.74 | 85.43 | 69.19 | 52.72 | a | 43.13 | 65.44 | ||||||||||
1938 | 42.61 | 46.46 | 53.65 | 62.83 | 72.26 | 83.03 | 93.39 | 89.23 | 90.37 | 66.32 | 46.70 | 40.16 | 65.58 | |||||||||||||
1939 | 43.19 | 46.10 | g | 57.45 | 68.57 | 79.16 | 77.00 | c | 91.90 | 95.13 | 82.57 | 65.45 | 52.13 | 44.90 | 68.86 | a | ||||||||||
1940 | 38.65 | 47.34 | 58.42 | 64.30 | 77.90 | 86.33 | 91.58 | 93.23 | 80.43 | 67.00 | 43.30 | 39.65 | 65.68 | |||||||||||||
1941 | 40.94 | 50.00 | 63.81 | 68.27 | 73.13 | 77.33 | 93.55 | 87.74 | 71.53 | 63.77 | 48.80 | 41.65 | 65.04 | |||||||||||||
1942 | 35.87 | 43.21 | 56.77 | 63.72 | a | 66.42 | 70.20 | 91.74 | 93.74 | 83.03 | 68.68 | 47.83 | 42.55 | 63.65 | ||||||||||||
1943 | 35.48 | 51.43 | 53.58 | 66.70 | 66.67 | a | 75.25 | b | 89.74 | 89.20 | a | 85.73 | 69.16 | 47.97 | 39.42 | 64.19 | ||||||||||
1944 | 43.26 | 45.55 | 51.26 | 65.10 | 74.39 | 78.80 | 91.32 | 89.35 | 83.33 | 72.48 | 49.73 | 37.68 | 65.19 | |||||||||||||
1945 | 42.90 | 48.71 | 54.16 | 60.50 | 74.52 | 77.53 | 93.61 | 94.10 | 78.86 | b | 72.00 | 49.00 | 39.23 | 65.43 | ||||||||||||
1946 | 43.42 | 47.64 | 59.61 | 68.50 | 75.90 | 78.70 | 89.71 | 92.77 | 80.67 | 62.94 | 47.60 | 42.29 | 65.81 | |||||||||||||
1947 | 38.19 | 50.46 | 61.68 | 65.80 | 79.42 | 76.23 | 92.00 | a | 90.03 | 80.93 | a | 67.19 | 46.00 | 42.52 | 65.87 | |||||||||||
1948 | 42.58 | 48.07 | 51.68 | 62.36 | b | 71.00 | 83.70 | 85.27 | a | 84.90 | 82.03 | 67.26 | 47.17 | 35.61 | 63.47 | |||||||||||
1949 | 25.74 | 43.93 | 56.52 | 71.93 | 77.97 | 83.07 | 90.97 | 93.77 | 85.07 | 61.37 | a | 52.50 | 39.74 | 65.21 | ||||||||||||
1950 | 30.13 | 44.25 | 52.10 | 63.27 | 71.65 | 79.50 | 90.94 | 93.03 | 82.47 | 64.19 | 46.90 | 43.87 | 63.52 | |||||||||||||
1951 | 39.52 | 46.29 | 50.68 | 70.93 | 74.90 | 79.40 | 93.97 | 90.48 | 83.70 | 59.97 | 47.27 | 37.48 | 64.55 | |||||||||||||
1952 | 35.48 | 44.86 | 52.48 | 72.93 | 74.45 | 80.30 | 91.10 | 90.10 | 84.07 | 73.61 | 45.20 | 40.26 | 65.40 | |||||||||||||
1953 | 47.18 | i | 48.64 | 56.53 | a | 64.10 | 70.16 | 75.72 | a | 92.13 | 91.06 | 85.52 | a | 69.03 | 51.30 | 42.90 | 67.92 | a | ||||||||
1954 | 40.32 | 53.07 | 53.77 | 64.21 | a | 76.45 | 75.00 | 89.68 | 84.07 | a | 79.45 | a | 65.20 | a | 52.72 | a | 40.55 | 64.54 | ||||||||
1955 | 38.16 | 42.96 | 47.39 | 58.40 | 69.53 | a | 81.77 | 86.81 | 91.81 | 79.59 | a | 65.00 | 40.17 | 36.90 | 61.54 | |||||||||||
1956 | 37.52 | 40.97 | 54.10 | 69.07 | 74.45 | 78.47 | 91.68 | 87.81 | 81.00 | a | 62.35 | 45.73 | 41.55 | 63.72 | ||||||||||||
1957 | 27.52 | 44.79 | 53.77 | 63.57 | 75.13 | 81.10 | 88.87 | 85.84 | 84.90 | 60.68 | 46.50 | 42.06 | 62.89 | |||||||||||||
1958 | 42.45 | 50.36 | 54.48 | 61.63 | 81.81 | 83.20 | 92.06 | 94.48 | 77.90 | 66.90 | 46.97 | 42.84 | 66.26 | |||||||||||||
1959 | 39.94 | 44.75 | 54.13 | 65.57 | 69.84 | 82.00 | 93.58 | 86.65 | 72.37 | 61.55 | 44.37 | 38.94 | 62.81 | |||||||||||||
1960 | 33.58 | 43.07 | 56.26 | 64.70 | 69.90 | 83.97 | 97.68 | 85.45 | 83.30 | 64.06 | 51.31 | d | 38.52 | 64.32 | ||||||||||||
1961 | 39.52 | 48.32 | 55.84 | 60.53 | 72.32 | 89.89 | c | 95.00 | 98.48 | 75.40 | 62.97 | 44.33 | 37.68 | 65.02 | ||||||||||||
1962 | 36.61 | 46.18 | 53.39 | 69.50 | 68.10 | 82.23 | 89.94 | 88.29 | 83.17 | 62.39 | 50.03 | 42.03 | a | 64.32 | ||||||||||||
1963 | 30.81 | 47.71 | 57.00 | 61.60 | 75.87 | 77.93 | 88.10 | 92.19 | 86.76 | a | 70.06 | 50.86 | a | 38.55 | 64.79 | |||||||||||
1964 | 39.87 | 46.21 | 52.19 | 60.50 | d | 70.23 | 77.93 | 90.29 | 84.10 | 75.57 | 64.94 | 46.10 | 37.48 | 62.12 | ||||||||||||
1965 | 38.29 | 47.84 | c | 54.42 | 66.17 | 71.03 | 79.93 | 92.60 | a | 89.42 | 72.20 | 68.42 | 49.73 | 40.42 | 64.21 | |||||||||||
1966 | 40.94 | 44.61 | 55.90 | 65.67 | 79.81 | 79.30 | 91.52 | 91.90 | 85.70 | 63.84 | 48.93 | 41.55 | 65.80 | |||||||||||||
1967 | 43.23 | 48.21 | 51.87 | 60.33 | 74.10 | 84.40 | 95.26 | 99.39 | 89.27 | 63.58 | 47.37 | 36.84 | 66.15 | |||||||||||||
1968 | 38.74 | 53.28 | 59.06 | 61.80 | 72.52 | 81.27 | 94.32 | 84.94 | 76.20 | 60.48 | 46.20 | 36.35 | 63.76 | |||||||||||||
1969 | 32.19 | 42.00 | 56.87 | 67.17 | a | 78.52 | 83.37 | 89.97 | 93.03 | 79.33 | 57.71 | 45.60 | 38.19 | 63.66 | ||||||||||||
1970 | 37.29 | 50.14 | 52.90 | 56.43 | 74.23 | 84.10 | 92.29 | 95.26 | 71.63 | 61.55 | 46.21 | a | 37.77 | 63.32 | ||||||||||||
1971 | 40.03 | 46.68 | 50.90 | 63.43 | 76.74 | 77.00 | 91.45 | 97.52 | 75.43 | 60.71 | 44.03 | 37.68 | 63.47 | |||||||||||||
1972 | 38.48 | 45.07 | 58.19 | 59.10 | 76.90 | 82.17 | 89.87 | 93.19 | 75.77 | 64.90 | a | 46.77 | 32.90 | 63.61 | ||||||||||||
1973 | 36.13 | a | 47.04 | 56.31 | b | 64.13 | 77.71 | 82.27 | 94.81 | 92.16 | 78.80 | 61.71 | 44.10 | 41.10 | 64.69 | |||||||||||
1974 | 35.84 | 49.14 | 55.13 | 62.93 | 68.03 | 86.67 | 89.55 | 90.29 | 84.40 | 68.03 | 48.03 | 40.39 | 64.87 | |||||||||||||
1975 | 38.35 | 41.82 | 52.61 | 57.37 | 71.03 | 76.67 | 93.87 | 84.39 | 81.50 | 60.00 | 45.17 | 39.10 | 61.82 | |||||||||||||
1976 | 38.68 | 46.03 | 51.19 | 64.47 | 76.70 | a | 77.43 | 89.10 | a | 80.48 | 83.90 | 64.90 | 48.43 | 36.00 | 63.11 | |||||||||||
1977 | 33.40 | a | 51.07 | 51.48 | 71.77 | 67.77 | 86.13 | 88.45 | 91.26 | 74.07 | 61.55 | 43.17 | 40.65 | 63.40 | ||||||||||||
1978 | 37.84 | 47.57 | 59.81 | 62.70 | 68.29 | 81.57 | 87.42 | 85.29 | 75.27 | 67.26 | 42.17 | 33.23 | 62.37 | |||||||||||||
1979 | 26.68 | 41.54 | 58.35 | 61.50 | 73.71 | 84.45 | a | 93.55 | 92.55 | 85.80 | 67.71 | 43.33 | 42.16 | 64.28 | ||||||||||||
1980 | 36.16 | 45.41 | 51.39 | 69.10 | 73.57 | a | 76.48 | a | 87.20 | a | 85.62 | b | 79.64 | b | 66.94 | 48.50 | 43.48 | 63.62 | ||||||||
1981 | 41.23 | 48.79 | 59.87 | 65.17 | a | 70.23 | 75.90 | 88.26 | 95.32 | 82.10 | 60.68 | 49.93 | 40.45 | 64.83 | ||||||||||||
1982 | 37.00 | 41.18 | 53.87 | 60.20 | 71.20 | a | 83.54 | b | 86.39 | 90.32 | 77.87 | 62.06 | 42.24 | a | 37.53 | a | 61.95 | |||||||||
1983 | 43.52 | 52.42 | b | 60.42 | 65.23 | 76.10 | 84.93 | 89.13 | a | 94.45 | 79.70 | 69.19 | 51.10 | 29.71 | c | 66.33 | ||||||||||
1984 | 38.55 | 48.39 | a | 56.35 | 63.13 | 72.52 | 80.82 | b | 93.42 | 94.39 | 80.03 | 60.97 | 48.50 | 35.71 | 64.40 | |||||||||||
1985 | 35.87 | 43.25 | 56.03 | 69.73 | 76.81 | 86.87 | 98.68 | 88.45 | 73.63 | 63.42 | 38.27 | 30.37 | a | 63.45 | ||||||||||||
1986 | 40.33 | a | 49.18 | 62.42 | 66.97 | 79.06 | 90.90 | 90.71 | 97.87 | 78.10 | 68.74 | 52.43 | 40.20 | k | 70.61 | a | ||||||||||
1987 | 37.48 | 48.93 | 58.10 | 77.03 | ----- | z | 92.30 | 87.48 | 90.76 | b | ----- | z | ----- | z | ----- | z | ----- | z | 70.30 | e | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.51 | 45.63 | 55.29 | 64.85 | 73.49 | 81.13 | 91.57 | 90.87 | 80.09 | 65.25 | 47.33 | 39.06 | 64.24 | |||||||||||||
S.D. | 4.56 | 4.59 | 3.75 | 4.13 | 4.26 | 4.02 | 2.80 | 3.85 | 4.67 | 3.82 | 3.27 | 3.92 | 1.36 | |||||||||||||
SKEW | -0.79 | -0.86 | 0.09 | 0.64 | 0.22 | 0.27 | -0.16 | -0.24 | -0.20 | 0.13 | -0.28 | -0.66 | -0.52 | |||||||||||||
MAX | 48.19 | 54.77 | 65.19 | 77.03 | 82.87 | 92.30 | 98.68 | 99.39 | 90.37 | 74.19 | 54.07 | 47.13 | 66.44 | |||||||||||||
MIN | 25.65 | 29.54 | 45.45 | 56.43 | 64.45 | 70.20 | 85.27 | 80.48 | 69.28 | 57.71 | 38.27 | 27.73 | 60.19 | |||||||||||||
YRS | 77 | 76 | 76 | 77 | 78 | 75 | 75 | 76 | 75 | 72 | 66 | 76 | 57 |