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 | ----- | z | ----- | z | ----- | z |
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 | 31.90 | j | 36.50 | 41.65 | 54.96 | c | 61.06 | 68.57 | b | 78.48 | 81.17 | b | 69.33 | 53.62 | b | 43.63 | 34.74 | 56.70 | a | |||||||
1914 | 36.58 | 37.50 | 48.90 | 55.60 | 67.00 | a | 68.33 | 80.81 | 81.90 | 64.17 | 57.93 | b | 41.90 | 30.48 | 55.93 | |||||||||||
1915 | 31.97 | 40.64 | 51.03 | 61.13 | 60.74 | 68.93 | 76.16 | 86.87 | 67.48 | a | 57.35 | 41.87 | 35.33 | a | 56.63 | |||||||||||
1916 | 16.65 | 30.86 | 43.26 | 53.73 | 55.74 | 64.67 | 66.35 | 70.30 | a | 66.34 | a | 60.71 | 39.97 | 33.10 | 50.14 | |||||||||||
1917 | 35.42 | 38.21 | 38.39 | 47.70 | 57.68 | 64.45 | a | 75.52 | 79.68 | 68.38 | d | 60.61 | 48.59 | a | 42.55 | 54.76 | ||||||||||
1918 | 39.55 | 36.32 | 44.97 | 57.43 | 58.23 | 71.83 | a | 75.87 | a | 72.79 | b | 74.86 | i | 58.23 | a | 43.77 | 36.81 | 54.16 | a | |||||||
1919 | 33.67 | m | 39.54 | 44.87 | 56.97 | 61.77 | 67.80 | 76.16 | 82.33 | v | 71.07 | 55.40 | a | 41.89 | b | 35.95 | j | 57.27 | c | |||||||
1920 | 35.65 | 43.76 | 45.37 | a | 49.57 | 60.37 | a | 68.52 | a | 80.87 | a | 80.83 | a | 66.43 | 53.97 | a | 45.07 | 36.84 | 55.60 | |||||||
1921 | 36.26 | 41.18 | 47.71 | 52.66 | a | 65.29 | c | 71.63 | 77.61 | c | 79.61 | 64.77 | 62.52 | 43.72 | a | 35.82 | c | 56.56 | ||||||||
1922 | 33.23 | a | 36.00 | 41.68 | 51.50 | 61.48 | b | 71.04 | b | ----- | z | 81.25 | c | 74.52 | a | 62.58 | 39.90 | a | 33.00 | a | 53.29 | a | ||||
1923 | 38.00 | a | 36.07 | 46.00 | 56.10 | 60.71 | 67.80 | 79.57 | a | 81.45 | 74.93 | 58.97 | 48.63 | 39.45 | b | 57.31 | ||||||||||
1924 | 32.39 | 44.00 | 46.93 | a | 55.33 | 69.68 | 71.33 | c | 69.67 | y | 77.03 | ----- | z | 56.23 | 41.13 | 34.19 | 52.82 | b | ||||||||
1925 | 38.58 | 43.50 | 47.42 | 57.30 | 65.87 | 71.87 | 83.84 | 79.52 | 71.07 | 63.48 | b | 44.68 | b | 40.87 | 59.00 | |||||||||||
1926 | 35.61 | 44.29 | 55.61 | 64.77 | 62.77 | 75.83 | 82.87 | 79.94 | 65.43 | 57.35 | 47.60 | 38.48 | 59.21 | |||||||||||||
1927 | 33.26 | 40.50 | 44.65 | 53.17 | 58.48 | 72.00 | 79.48 | 82.55 | 66.43 | 55.35 | 45.40 | j | 34.27 | a | 56.38 | a | ||||||||||
1928 | 33.26 | 42.21 | 47.16 | 53.50 | 70.00 | 68.07 | 80.68 | 79.03 | 75.37 | 58.17 | a | 45.10 | 34.87 | 57.28 | ||||||||||||
1929 | 30.77 | 33.68 | 47.10 | 50.83 | 63.65 | 67.13 | 77.58 | 83.26 | 72.50 | 64.48 | 51.33 | 42.23 | 57.05 | |||||||||||||
1930 | 25.97 | 43.00 | 50.29 | 60.52 | a | 61.13 | 68.66 | a | 79.13 | 83.32 | 72.70 | 57.00 | 43.48 | a | 34.00 | 56.60 | ||||||||||
1931 | 37.17 | a | 40.07 | 46.00 | 57.93 | 68.61 | 69.83 | 82.10 | 82.32 | 68.63 | 60.20 | a | 41.37 | 32.90 | 57.26 | |||||||||||
1932 | 34.41 | b | 38.14 | 43.53 | a | 55.73 | 62.17 | b | 74.48 | c | 72.47 | a | 76.03 | 72.69 | a | 59.33 | d | 46.82 | b | 35.08 | f | 57.80 | a | |||
1933 | 35.27 | e | 33.67 | a | 43.20 | a | 55.93 | 57.77 | a | 68.40 | 78.52 | b | 80.55 | 62.96 | c | 60.57 | a | 49.70 | c | 39.69 | e | 55.52 | ||||
1934 | 41.00 | a | 47.36 | 54.81 | 64.13 | 66.57 | a | 70.89 | b | 75.77 | a | 80.30 | a | 66.62 | a | 57.40 | a | 44.93 | a | 37.04 | c | 58.90 | ||||
1935 | 35.50 | e | 41.04 | 41.14 | b | 52.90 | 62.21 | b | 67.07 | 76.38 | b | 76.03 | a | 74.64 | b | 59.07 | b | 41.00 | b | 33.43 | a | 55.03 | ||||
1936 | 37.59 | d | 25.85 | b | 42.57 | a | 56.63 | 65.97 | a | 70.60 | 75.97 | 77.45 | 71.60 | 65.03 | 44.45 | a | 39.45 | b | 56.10 | |||||||
1937 | 24.14 | b | 35.21 | 46.67 | a | 48.31 | a | 61.87 | 70.33 | 77.40 | a | 72.07 | a | 72.34 | a | 63.30 | a | 44.79 | b | 37.23 | a | 54.47 | ||||
1938 | 35.30 | d | 35.73 | b | 43.53 | a | 55.93 | 62.42 | 73.44 | c | 81.16 | 75.07 | c | 78.53 | 59.38 | b | 41.28 | a | 40.00 | d | 56.81 | |||||
1939 | 39.77 | 36.63 | a | 46.71 | 58.40 | 63.40 | a | 64.46 | b | 78.10 | a | 81.77 | 72.00 | 57.90 | a | 48.97 | 40.93 | c | 57.42 | |||||||
1940 | 34.73 | a | 40.41 | 51.39 | 54.20 | 66.77 | 73.10 | 76.42 | 78.26 | 74.17 | 58.39 | 38.63 | 37.52 | 57.00 | ||||||||||||
1941 | 34.58 | 42.89 | 56.94 | 59.83 | a | 61.10 | 67.63 | 82.65 | 77.84 | 62.63 | 55.90 | 47.97 | 37.60 | a | 57.30 | |||||||||||
1942 | 29.16 | 39.21 | 46.90 | 57.80 | 59.23 | a | 63.77 | 80.68 | 82.35 | 76.70 | 62.55 | 38.03 | 37.42 | 56.15 | ||||||||||||
1943 | 27.19 | 38.54 | 42.87 | 55.07 | 56.52 | 65.17 | 77.52 | 74.65 | 77.23 | 59.48 | 42.97 | 36.65 | 54.49 | |||||||||||||
1944 | 34.61 | 39.24 | 44.42 | 54.73 | 62.32 | 66.80 | 76.87 | 74.61 | 74.03 | 66.03 | 41.03 | 31.68 | 55.53 | |||||||||||||
1945 | 37.40 | a | 39.75 | 43.00 | 47.57 | 63.94 | 64.57 | 78.71 | 80.94 | 67.63 | 62.71 | 40.03 | 32.87 | 54.93 | ||||||||||||
1946 | 37.35 | 38.68 | 45.42 | 55.00 | 65.23 | 65.73 | 74.94 | 79.35 | 68.13 | 53.67 | a | 42.07 | 39.76 | b | 55.44 | |||||||||||
1947 | 35.47 | a | 42.79 | 51.97 | 56.73 | 69.06 | 65.33 | 75.06 | 73.90 | 71.73 | 54.97 | 43.97 | 39.07 | a | 56.67 | |||||||||||
1948 | 35.13 | a | 37.50 | a | 43.30 | a | 49.55 | a | 57.61 | 71.70 | 72.55 | 73.29 | 69.67 | 57.90 | 42.77 | 30.45 | 53.45 | |||||||||
1949 | 24.74 | 33.64 | 43.77 | 57.00 | 66.03 | 66.67 | 72.39 | 75.94 | 72.83 | 55.03 | 52.00 | 38.29 | 54.86 | |||||||||||||
1950 | 19.97 | 34.00 | 39.42 | 47.90 | 58.29 | 67.03 | 76.03 | 78.32 | 76.07 | 52.58 | 42.50 | 38.81 | 52.58 | |||||||||||||
1951 | 33.71 | 38.75 | 41.10 | 59.70 | 61.23 | 70.37 | 78.29 | 75.52 | 73.73 | 54.97 | 43.00 | 35.10 | 55.45 | |||||||||||||
1952 | 27.77 | 38.21 | 43.77 | 57.43 | 63.58 | 64.30 | 78.00 | 76.45 | 75.93 | 69.52 | 42.50 | 34.00 | 55.96 | |||||||||||||
1953 | 40.80 | a | 42.25 | 46.19 | 49.81 | d | 58.06 | 60.27 | 74.81 | 76.36 | c | 69.75 | f | 60.68 | 46.07 | 41.65 | 54.27 | a | ||||||||
1954 | 32.42 | 37.65 | b | 43.48 | 48.57 | 61.81 | 60.73 | 72.47 | a | 67.97 | 67.23 | 56.06 | 49.10 | 36.29 | 52.82 | |||||||||||
1955 | 35.29 | 37.79 | 36.65 | 45.67 | 55.45 | 65.63 | 68.94 | 75.48 | 70.17 | 54.97 | 34.77 | 32.52 | 51.11 | |||||||||||||
1956 | 31.84 | 31.00 | 40.03 | 55.67 | 65.35 | 62.10 | 78.90 | 76.74 | 70.53 | 53.71 | 41.40 | 38.97 | 53.85 | |||||||||||||
1957 | 26.67 | a | 39.52 | a | 44.06 | 54.93 | 66.10 | 68.97 | 71.97 | 72.94 | 75.93 | 53.06 | 44.47 | 38.65 | 54.77 | |||||||||||
1958 | 37.65 | 42.79 | 44.87 | 52.07 | 72.10 | 73.53 | 84.26 | 81.55 | 67.07 | 59.16 | 41.53 | 38.39 | 57.91 | |||||||||||||
1959 | 35.55 | 38.29 | d | 43.06 | 53.43 | 56.71 | 65.97 | 77.94 | 72.52 | 62.83 | 56.55 | 44.43 | 37.39 | 53.72 | ||||||||||||
1960 | 32.35 | 38.17 | 44.81 | 52.90 | 57.45 | 67.50 | 81.35 | 71.60 | a | 70.90 | 58.65 | 42.17 | 34.94 | 54.40 | ||||||||||||
1961 | 36.84 | 41.12 | d | 45.71 | 49.00 | 59.19 | 75.70 | 79.39 | 84.81 | 65.43 | 54.06 | 39.20 | 34.33 | a | 55.40 | |||||||||||
1962 | 36.19 | 40.93 | 43.45 | 55.87 | 53.06 | 66.77 | 73.94 | 72.39 | 72.30 | 56.74 | 44.20 | 38.84 | 54.56 | |||||||||||||
1963 | 35.90 | 46.50 | 46.00 | 49.10 | 61.90 | 64.50 | 71.16 | 76.80 | a | 75.73 | 57.81 | 42.30 | 32.90 | 55.05 | ||||||||||||
1964 | 36.65 | 42.14 | 42.29 | 48.57 | 58.77 | 65.17 | 74.84 | 70.35 | 65.13 | 57.61 | 40.27 | 31.06 | 52.74 | |||||||||||||
1965 | 36.00 | 40.96 | 47.16 | 55.27 | 57.61 | 67.77 | 79.16 | 76.35 | 68.13 | 59.71 | 45.30 | 36.19 | 55.80 | |||||||||||||
1966 | 34.87 | 40.14 | 45.00 | 55.43 | 63.65 | 64.80 | 73.32 | 76.26 | 73.50 | 57.84 | 45.40 | 39.39 | 55.80 | |||||||||||||
1967 | 39.03 | 43.04 | 43.55 | 48.80 | 60.87 | 73.40 | 78.19 | 85.10 | 77.83 | 54.94 | 45.20 | 36.35 | 57.19 | |||||||||||||
1968 | 35.71 | 45.55 | 48.81 | 49.43 | 61.32 | 66.60 | 80.29 | 71.68 | 68.23 | 51.94 | 41.37 | 31.00 | 54.33 | |||||||||||||
1969 | 25.61 | 35.32 | 47.06 | 52.23 | 66.94 | 74.67 | 74.19 | 73.90 | 68.20 | 54.13 | 45.20 | 34.52 | 54.33 | |||||||||||||
1970 | 31.45 | 41.58 | b | 44.55 | 46.73 | 61.52 | 73.93 | 76.35 | 79.68 | 63.77 | 55.45 | 41.00 | a | 32.70 | a | 54.06 | ||||||||||
1971 | 36.97 | 40.86 | 37.94 | 50.40 | 62.55 | 62.00 | b | 78.71 | 82.10 | 64.70 | 54.13 | 42.52 | a | ----- | z | 55.71 | a | |||||||||
1972 | 34.86 | b | 38.07 | b | 44.10 | 48.43 | b | 64.61 | 65.67 | 75.61 | 78.58 | 62.03 | 59.32 | c | ----- | z | 29.65 | e | 54.63 | a | ||||||
1973 | 30.87 | 40.54 | 45.16 | 53.10 | a | 63.52 | ----- | z | 77.94 | 75.10 | 68.37 | 53.58 | 35.90 | 37.03 | 52.83 | a | ||||||||||
1974 | 34.12 | f | 40.18 | 43.68 | 48.77 | 54.65 | 68.97 | 72.26 | 76.90 | a | 74.77 | 61.26 | 42.90 | 38.26 | 56.60 | a | ||||||||||
1975 | 34.94 | 34.11 | 41.10 | 47.63 | 58.35 | 63.63 | 78.84 | 68.37 | a | 72.67 | c | ----- | z | 40.37 | 38.90 | 52.63 | a | |||||||||
1976 | 37.16 | 38.34 | 42.13 | 50.57 | 61.32 | 62.23 | 72.00 | 69.23 | 71.90 | 58.26 | 45.27 | d | 37.70 | a | 53.84 | |||||||||||
1977 | 31.77 | 40.89 | 42.13 | 56.87 | 55.29 | 70.37 | 73.06 | 82.61 | c | ----- | z | ----- | z | ----- | z | ----- | z | 56.62 | d | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.75 | 39.12 | 45.05 | 53.70 | 61.87 | 68.14 | 76.97 | 77.48 | 70.31 | 58.09 | 43.44 | 36.30 | 55.47 | |||||||||||||
S.D. | 4.77 | 3.84 | 3.83 | 4.27 | 4.06 | 3.74 | 3.57 | 4.34 | 4.32 | 3.59 | 3.38 | 3.15 | 1.85 | |||||||||||||
SKEW | -1.41 | -0.66 | 0.83 | 0.24 | 0.21 | 0.11 | -0.38 | -0.19 | -0.09 | 0.70 | 0.23 | -0.16 | -0.41 | |||||||||||||
MAX | 41.00 | 47.36 | 56.94 | 64.77 | 72.10 | 75.83 | 84.26 | 86.87 | 78.53 | 69.52 | 52.00 | 42.55 | 59.21 | |||||||||||||
MIN | 16.65 | 25.85 | 36.65 | 45.67 | 53.06 | 60.27 | 66.35 | 67.97 | 62.03 | 51.94 | 34.77 | 29.65 | 50.14 | |||||||||||||
YRS | 62 | 65 | 65 | 65 | 65 | 64 | 63 | 64 | 61 | 63 | 62 | 61 | 51 |