YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | 42.82 | k | 53.97 | 61.45 | a | 69.81 | 79.20 | 80.90 | 82.66 | b | 76.33 | 61.77 | 57.20 | 37.32 | 66.06 | b | ||||||||
1915 | 35.32 | 41.43 | 48.84 | 59.70 | 65.55 | 78.27 | 83.10 | 82.19 | 74.03 | 67.29 | 50.87 | 40.19 | 60.56 | |||||||||||||
1916 | 38.03 | 42.90 | 54.10 | 61.57 | 69.97 | 81.93 | 82.63 | a | 78.58 | 74.67 | 61.32 | 51.87 | 37.90 | 61.29 | ||||||||||||
1917 | 34.42 | 39.57 | 44.10 | a | 56.57 | 60.61 | 80.27 | 86.84 | 82.55 | 77.10 | 68.55 | 58.43 | 50.61 | 61.63 | ||||||||||||
1918 | 37.30 | a | 44.29 | 53.81 | 60.17 | 70.27 | a | 85.87 | 83.65 | 83.19 | 75.63 | 65.94 | 46.83 | 35.60 | a | 61.88 | ||||||||||
1919 | 35.61 | 37.89 | 46.81 | 62.24 | a | 72.06 | 81.37 | 82.71 | 84.00 | 75.62 | a | 57.74 | 51.38 | a | 42.58 | 60.83 | ||||||||||
1920 | 41.65 | 44.93 | 49.58 | 53.50 | 69.45 | 77.90 | a | 85.55 | 80.97 | 74.40 | 60.84 | 49.77 | 38.71 | 60.60 | ||||||||||||
1921 | 41.35 | 47.00 | 55.87 | 58.97 | 69.26 | 79.30 | 83.00 | 79.45 | 77.33 | 68.13 | 55.77 | 45.45 | 63.41 | |||||||||||||
1922 | 36.87 | 40.29 | 47.58 | 57.70 | 71.26 | 83.67 | 87.29 | 85.43 | a | 79.93 | 66.32 | 46.33 | 42.44 | d | 62.09 | |||||||||||
1923 | 44.48 | 42.75 | 46.71 | 57.80 | 71.58 | 80.20 | 86.06 | 79.52 | 70.97 | 59.81 | 50.93 | 39.39 | 60.85 | |||||||||||||
1924 | 36.48 | 47.28 | 44.39 | 59.20 | 72.00 | 84.43 | 84.90 | 84.03 | 76.93 | 65.48 | 55.97 | 35.58 | 62.22 | |||||||||||||
1925 | 35.06 | 45.54 | 53.87 | a | 65.07 | 74.23 | a | 77.10 | 85.55 | 77.43 | a | 74.20 | 62.77 | 50.13 | 45.23 | 62.18 | ||||||||||
1926 | 39.00 | e | 46.88 | c | 52.65 | 59.79 | a | 67.90 | 82.23 | 83.81 | 85.13 | 75.20 | 68.23 | 52.53 | 38.74 | 62.67 | ||||||||||
1927 | 45.00 | 44.29 | 50.29 | 58.84 | e | 74.18 | n | 77.75 | f | 84.56 | o | 78.84 | 71.27 | d | 66.42 | 54.30 | 37.72 | b | 56.33 | c | ||||||
1928 | 42.77 | 44.10 | 54.90 | a | 59.04 | f | 75.29 | 82.23 | d | 87.39 | 81.84 | 81.23 | 69.09 | h | 54.83 | 42.32 | 64.69 | b | ||||||||
1929 | 37.13 | 42.54 | 57.42 | 63.69 | a | 73.29 | 84.30 | 85.97 | 81.61 | 73.23 | 65.97 | 50.55 | a | 49.00 | 63.72 | |||||||||||
1930 | 36.55 | 47.61 | 51.71 | 67.33 | 69.32 | 83.57 | 84.55 | 84.23 | 77.87 | 65.90 | 50.43 | 41.48 | 63.38 | |||||||||||||
1931 | 43.71 | 47.11 | 53.35 | 62.71 | b | 71.61 | 83.40 | 88.74 | 85.00 | 77.00 | 67.47 | a | 46.90 | 30.81 | 63.15 | |||||||||||
1932 | 29.77 | 47.00 | a | 51.77 | 65.21 | f | 71.66 | b | 78.90 | 85.00 | f | 83.57 | h | 77.77 | 64.94 | 58.27 | 33.52 | 57.07 | c | |||||||
1933 | 35.45 | 34.89 | 55.10 | a | 60.17 | 67.26 | 82.97 | 87.77 | 84.35 | 80.77 | 69.61 | 57.93 | 47.84 | 63.68 | ||||||||||||
1934 | 48.29 | 53.54 | 63.26 | 67.70 | 78.97 | 82.23 | 90.00 | 87.13 | 77.53 | 71.84 | 53.17 | a | 46.10 | 68.31 | ||||||||||||
1935 | 43.23 | 46.79 | 50.23 | 60.40 | 64.71 | 84.10 | 86.94 | 84.94 | 79.28 | a | 65.90 | 51.53 | 43.68 | 63.48 | ||||||||||||
1936 | 41.10 | 41.36 | a | 54.74 | h | 64.60 | 76.68 | 85.87 | 87.71 | 84.32 | 75.50 | 64.19 | 55.73 | 43.81 | 65.53 | a | ||||||||||
1937 | 29.71 | 38.46 | b | 49.16 | 65.84 | e | 75.00 | 80.70 | 85.06 | 87.26 | 80.23 | 68.61 | 56.40 | 43.74 | 63.35 | |||||||||||
1938 | 42.00 | 43.75 | 51.61 | 63.97 | 69.65 | 81.30 | 85.65 | 85.45 | 75.97 | 67.68 | 48.07 | 45.29 | 63.36 | |||||||||||||
1939 | 40.16 | 34.54 | 53.35 | 66.40 | 74.68 | 82.83 | 88.52 | 86.29 | 77.90 | 67.97 | a | 57.60 | 50.32 | 65.05 | ||||||||||||
1940 | 37.68 | 43.21 | 58.16 | 64.67 | 75.90 | 84.97 | 88.00 | 84.23 | 76.80 | 68.13 | a | 49.27 | 41.34 | b | 64.36 | |||||||||||
1941 | 37.29 | 45.79 | 51.45 | 54.53 | 70.90 | 77.23 | 85.60 | a | 83.77 | 73.77 | 61.77 | 53.63 | 42.87 | 61.55 | ||||||||||||
1942 | 39.19 | 40.00 | 50.42 | 63.67 | 72.55 | 82.83 | 89.35 | 86.48 | 80.60 | 67.27 | a | 56.77 | 43.94 | 64.42 | ||||||||||||
1943 | 40.55 | 44.54 | 53.97 | 70.93 | 72.90 | 81.10 | 87.77 | 84.68 | 79.47 | 66.84 | 54.77 | 40.13 | 64.80 | |||||||||||||
1944 | 37.40 | a | 43.31 | 50.45 | 58.90 | 72.16 | 80.83 | 86.03 | 86.94 | 80.43 | 69.58 | 51.62 | a | 44.34 | b | 63.50 | ||||||||||
1945 | 38.45 | 45.54 | 49.74 | 60.60 | 74.13 | a | 80.32 | k | 86.20 | a | 87.23 | 80.27 | 66.73 | a | 52.57 | 36.68 | 61.65 | a | ||||||||
1946 | 36.97 | 44.89 | 57.61 | 68.80 | 70.68 | 85.83 | 86.16 | 83.10 | 78.17 | 61.94 | 48.80 | 46.77 | 64.14 | |||||||||||||
1947 | 34.19 | 48.04 | 55.23 | 63.40 | 75.16 | 79.43 | 90.35 | 82.16 | 78.94 | n | 68.13 | 44.61 | b | 39.65 | 61.85 | a | ||||||||||
1948 | 39.90 | 42.28 | ----- | z | 65.59 | a | 71.88 | n | 82.27 | 87.97 | 86.63 | a | 82.10 | 68.19 | 47.07 | 42.71 | 64.47 | b | ||||||||
1949 | 34.16 | 38.96 | 51.94 | 65.47 | 71.23 | 79.90 | 87.74 | 87.45 | 81.27 | 65.42 | 62.40 | 44.03 | 64.16 | |||||||||||||
1950 | 43.85 | e | 55.24 | c | 55.13 | 69.24 | a | 73.52 | 86.87 | 86.23 | 87.13 | 77.20 | 76.45 | b | 60.29 | i | 51.29 | 69.28 | a | |||||||
1951 | 43.46 | e | 45.89 | 54.32 | 61.37 | 73.58 | 80.57 | 89.42 | 83.48 | 80.07 | 66.00 | a | 50.23 | 36.00 | b | 63.70 | ||||||||||
1952 | 38.71 | 41.19 | c | 46.17 | g | 63.33 | 72.63 | d | 84.12 | d | 86.48 | 85.26 | 81.50 | ----- | z | 45.69 | d | 40.48 | b | 63.94 | b | |||||
1953 | 44.95 | k | 46.25 | 53.11 | d | 58.04 | d | 67.78 | d | 83.81 | c | 87.00 | 84.13 | 81.93 | 69.04 | g | 54.67 | 38.19 | e | 65.49 | b | |||||
1954 | 43.16 | 54.96 | d | 51.59 | d | 71.53 | 74.87 | 84.28 | a | 88.61 | 86.29 | 80.07 | a | 70.97 | b | 59.70 | 42.50 | a | 67.38 | |||||||
1955 | 37.74 | 39.21 | 52.11 | d | 59.05 | j | 70.45 | b | 81.23 | 87.35 | 86.13 | 82.17 | 73.09 | i | 53.97 | 43.13 | a | 63.35 | b | |||||||
1956 | 46.34 | b | 40.97 | 57.31 | e | 64.29 | f | 76.14 | c | 86.93 | a | 87.08 | g | 79.95 | i | 82.37 | k | 67.59 | b | 49.24 | e | 45.18 | c | 58.71 | d | |
1957 | 39.97 | a | 48.57 | 52.90 | 58.33 | 65.00 | 81.00 | 83.81 | 80.68 | 77.56 | e | 63.03 | a | 43.73 | 42.34 | b | 61.41 | |||||||||
1958 | 42.00 | 46.79 | 45.84 | 58.77 | 74.88 | e | 85.93 | 87.96 | e | 86.71 | 74.80 | o | 67.61 | 53.50 | 49.81 | 63.62 | a | |||||||||
1959 | 44.44 | d | 43.21 | 54.39 | 64.14 | a | 72.65 | 86.50 | 89.39 | 83.10 | 77.20 | 64.78 | d | 53.17 | 44.26 | 64.77 | ||||||||||
1960 | 34.48 | 37.21 | 53.26 | 64.57 | 71.00 | a | 83.30 | 89.35 | 88.13 | 80.67 | 63.58 | 53.53 | 37.94 | 63.08 | ||||||||||||
1961 | 40.94 | 46.00 | 50.19 | 61.27 | 73.55 | 85.93 | 87.48 | 83.57 | a | 71.18 | h | 62.12 | o | 47.87 | 36.81 | 61.36 | b | |||||||||
1962 | 37.81 | 44.21 | 48.55 | 67.27 | 72.65 | 82.97 | 86.94 | 87.03 | 77.53 | 67.71 | 54.90 | 46.13 | 64.47 | |||||||||||||
1963 | 31.81 | 46.68 | 52.10 | 62.57 | 76.29 | 82.13 | 88.71 | 82.03 | 79.37 | 71.16 | 54.30 | 41.87 | 64.08 | |||||||||||||
1964 | 40.06 | 40.76 | 47.29 | 58.37 | 72.03 | 81.50 | 88.58 | 81.94 | 75.57 | 71.68 | 49.97 | 37.93 | a | 62.14 | ||||||||||||
1965 | 39.55 | 42.89 | 47.23 | 58.97 | a | 68.19 | 77.20 | 85.10 | 83.87 | 71.97 | 71.16 | 54.53 | 41.58 | 61.85 | ||||||||||||
1966 | 35.55 | 37.79 | 55.26 | 64.37 | 75.59 | d | 82.85 | c | 90.03 | 85.89 | c | 80.56 | n | 68.18 | c | 59.06 | m | 46.73 | t | 66.17 | c | |||||
1967 | 39.35 | n | 48.47 | i | 60.78 | h | 63.87 | o | 75.07 | q | 77.15 | d | 87.43 | c | 80.96 | d | 76.12 | n | 72.15 | k | 59.47 | o | 41.43 | q | 81.85 | i |
1968 | 42.07 | p | 46.37 | j | 53.40 | k | 57.72 | l | 73.75 | s | 85.50 | h | 87.09 | h | 81.00 | q | 78.18 | m | 68.43 | j | 52.25 | r | 42.69 | r | ----- | z |
1969 | 41.00 | q | 42.36 | f | 47.13 | 65.57 | 73.29 | c | 78.62 | a | 86.75 | c | 87.26 | 76.79 | a | 59.33 | a | 52.40 | 45.19 | d | 67.23 | b | ||||
1970 | 41.26 | 51.96 | 47.74 | h | 55.23 | 73.13 | 78.55 | a | 84.77 | 85.71 | 72.13 | 58.39 | 52.50 | 42.86 | c | 63.32 | a | |||||||||
1971 | 38.03 | b | 43.61 | 52.74 | 61.10 | 69.26 | 82.87 | 88.23 | 84.45 | 75.50 | 61.23 | 49.27 | 35.19 | 61.79 | ||||||||||||
1972 | 40.16 | 48.76 | 61.48 | 64.03 | 74.58 | 82.40 | 88.97 | 85.19 | 77.37 | 62.45 | 42.10 | 35.23 | 63.56 | |||||||||||||
1973 | 32.39 | 42.39 | 46.00 | 55.97 | 69.68 | 80.47 | 87.29 | 86.26 | 75.23 | 68.87 | 53.23 | 42.06 | 61.65 | |||||||||||||
1974 | 32.81 | 38.82 | 56.45 | 60.93 | 76.84 | 86.43 | 86.37 | a | 83.74 | 78.53 | 66.52 | 50.27 | 38.77 | 63.04 | ||||||||||||
1975 | 33.77 | 39.64 | 46.87 | 56.47 | 67.58 | 80.10 | 86.68 | 84.42 | 76.13 | 67.97 | 51.97 | 38.94 | 60.88 | |||||||||||||
1976 | 38.29 | 47.69 | 52.03 | 63.17 | 72.26 | 83.13 | ----- | z | 82.65 | 74.57 | 62.90 | 52.80 | 44.03 | 61.23 | a | |||||||||||
1977 | 32.61 | 46.93 | 49.48 | 64.07 | 69.77 | 86.57 | 86.48 | 85.23 | 78.10 | 68.68 | 52.80 | 44.61 | 63.78 | |||||||||||||
1978 | 37.39 | 41.32 | 53.19 | 63.13 | 65.68 | 83.30 | 90.48 | 85.39 | 76.67 | 69.39 | 50.43 | 32.35 | 62.39 | |||||||||||||
1979 | 29.55 | 37.86 | 47.35 | 61.17 | ----- | z | 81.27 | 86.61 | 81.84 | 82.53 | ----- | z | ----- | z | 43.94 | 61.35 | c | |||||||||
1980 | 36.48 | 42.97 | 46.58 | e | 59.97 | 67.87 | 85.77 | 86.94 | 80.90 | 74.52 | a | 58.94 | 47.62 | d | 46.96 | c | 61.29 | |||||||||
1981 | 49.74 | 51.71 | 49.48 | 67.97 | 70.81 | 86.53 | 87.39 | 84.94 | 78.60 | 64.16 | 54.45 | a | 46.06 | 65.99 | ||||||||||||
1982 | 36.55 | b | 39.18 | 46.33 | a | 59.43 | 69.48 | 77.83 | 83.90 | 82.42 | 63.17 | 55.94 | 46.37 | 39.45 | 58.34 | |||||||||||
1983 | 42.97 | 48.00 | 52.13 | 55.83 | 68.90 | 80.03 | 88.19 | 89.52 | 82.77 | 68.06 | 50.53 | 40.29 | 63.94 | |||||||||||||
1984 | 39.74 | 45.45 | 53.16 | 46.90 | 76.84 | 83.31 | a | 91.94 | 83.58 | 79.23 | 53.87 | 51.47 | 43.90 | 62.45 | ||||||||||||
1985 | 43.19 | 44.96 | 52.65 | 65.47 | 72.97 | 87.40 | 90.61 | 89.55 | 73.80 | 65.94 | 48.53 | 42.65 | 64.81 | |||||||||||||
1986 | 50.68 | 52.77 | f | 60.03 | 62.07 | 72.23 | 85.80 | 85.67 | m | 88.00 | 73.38 | a | 63.10 | 52.29 | b | 45.23 | 65.28 | b | ||||||||
1987 | 41.00 | d | 47.42 | b | 51.84 | 67.90 | 72.73 | a | 87.84 | e | ----- | z | ----- | z | ----- | z | 71.23 | 53.38 | a | 43.06 | 59.60 | c | ||||
1988 | 37.84 | 47.66 | 54.52 | 65.47 | 74.11 | c | 88.77 | 91.55 | 85.48 | 79.27 | 74.29 | 51.73 | 43.81 | 66.21 | ||||||||||||
1989 | ----- | z | 52.53 | m | 61.35 | 69.90 | 77.10 | 85.90 | 91.58 | 86.10 | 82.90 | 67.03 | a | 57.20 | 47.90 | 72.70 | b | |||||||||
1990 | 41.48 | 47.56 | a | 54.69 | b | 61.77 | 68.35 | 84.83 | 81.94 | 80.61 | 76.30 | 62.90 | 48.93 | 32.07 | b | 61.79 | ||||||||||
1991 | 31.94 | 44.59 | a | 47.23 | 58.86 | b | 69.81 | 77.13 | 84.58 | 82.68 | 73.50 | 65.65 | 43.80 | 36.84 | 59.72 | |||||||||||
1992 | 33.84 | 43.93 | 52.77 | 65.57 | 69.73 | e | 77.70 | 81.90 | 81.61 | 75.57 | 66.42 | 45.89 | u | ----- | z | 64.90 | b | |||||||||
1993 | 35.81 | 38.39 | 52.43 | a | 60.37 | 69.71 | 78.50 | 84.60 | u | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 55.87 | f | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.70 | 44.08 | 52.05 | 62.06 | 71.62 | 82.39 | 86.84 | 84.17 | 77.18 | 65.88 | 51.89 | 41.80 | 63.00 | |||||||||||||
S.D. | 4.46 | 4.27 | 4.01 | 4.35 | 3.32 | 3.01 | 2.40 | 2.55 | 3.38 | 4.11 | 3.97 | 4.47 | 1.84 | |||||||||||||
SKEW | 0.26 | 0.21 | 0.34 | -0.36 | -0.46 | -0.02 | -0.21 | -0.32 | -0.92 | -0.44 | -0.06 | -0.22 | 0.34 | |||||||||||||
MAX | 50.68 | 55.24 | 63.26 | 71.53 | 78.97 | 88.77 | 91.94 | 89.55 | 82.90 | 76.45 | 62.40 | 51.29 | 68.31 | |||||||||||||
MIN | 29.55 | 34.54 | 44.10 | 46.90 | 60.61 | 77.10 | 80.90 | 77.43 | 63.17 | 53.87 | 42.10 | 30.81 | 58.34 | |||||||||||||
YRS | 74 | 74 | 74 | 74 | 75 | 77 | 72 | 75 | 71 | 71 | 73 | 75 | 53 |