YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.83 | 77.33 | a | 67.79 | a | 56.30 | a | 71.06 | h | |
1901 | 56.93 | b | 47.46 | b | 59.90 | 69.00 | 77.52 | 91.47 | 98.26 | 94.19 | 85.63 | 74.52 | 64.03 | 50.61 | 72.46 | |||||||||||
1902 | 51.00 | a | 54.07 | a | 60.35 | 71.07 | 84.68 | 89.75 | b | 93.48 | 98.13 | 85.89 | b | 75.48 | 59.83 | 45.67 | a | 72.45 | ||||||||
1903 | 52.45 | 37.79 | 58.16 | 69.77 | 76.76 | b | 77.37 | 98.29 | 94.00 | 84.23 | 76.10 | 60.73 | 54.60 | a | 70.02 | |||||||||||
1904 | 47.57 | c | 59.43 | a | 63.97 | 67.39 | b | 77.19 | 84.80 | 88.35 | 86.55 | 84.45 | a | 71.00 | c | 62.97 | 48.07 | a | 70.14 | |||||||
1905 | 38.55 | 35.36 | 60.97 | b | 65.41 | a | 73.68 | 87.90 | 95.84 | 96.97 | 83.53 | 70.34 | b | 62.20 | ----- | z | 70.07 | a | ||||||||
1906 | 51.45 | 56.86 | 48.10 | a | 61.57 | b | 78.39 | 83.86 | b | 86.10 | 90.10 | 82.37 | 73.09 | i | 53.80 | 53.79 | c | 67.85 | a | |||||||
1907 | 50.00 | a | 56.44 | c | 71.42 | e | 67.21 | a | 71.65 | 82.70 | 91.32 | f | 90.38 | e | 86.81 | c | 71.50 | e | 55.59 | c | 51.63 | d | 68.67 | a | ||
1908 | 52.55 | k | 54.14 | 66.10 | 71.53 | 78.10 | a | 89.03 | 88.83 | a | 93.10 | a | 89.73 | 72.93 | c | 61.33 | 46.32 | 73.74 | a | |||||||
1909 | 52.94 | 55.18 | 56.58 | 67.40 | 75.03 | b | 88.37 | 94.29 | 95.03 | a | 81.90 | 70.06 | 61.27 | 36.61 | 69.56 | |||||||||||
1910 | 48.63 | a | 49.37 | a | 72.71 | 71.59 | a | 75.33 | a | 92.23 | 94.85 | d | 91.81 | 83.83 | 77.32 | 64.07 | 50.97 | 72.73 | ||||||||
1911 | 58.17 | a | 51.62 | d | 63.23 | 68.97 | 80.59 | b | 93.30 | 91.55 | 88.84 | f | 88.03 | 68.57 | a | 55.28 | a | 38.60 | a | 68.90 | a | |||||
1912 | 33.52 | 44.04 | a | 41.03 | b | 64.57 | 77.29 | 80.87 | 89.71 | 87.55 | ----- | z | 73.13 | 63.21 | a | 48.93 | a | 63.99 | a | |||||||
1913 | 46.74 | 36.15 | a | 54.23 | 68.13 | 81.00 | 82.93 | 93.06 | 94.77 | 77.70 | 69.97 | a | 58.66 | a | 32.55 | 66.32 | ||||||||||
1914 | 46.19 | 47.18 | 57.17 | a | 65.66 | a | 73.13 | 87.73 | ----- | z | 90.68 | 87.00 | 72.50 | a | 64.83 | 39.38 | b | 66.50 | a | |||||||
1915 | 39.45 | 45.70 | a | 43.36 | c | 66.93 | 68.77 | a | 77.57 | 83.84 | 83.48 | 83.50 | 75.74 | 66.82 | b | 52.16 | 65.61 | |||||||||
1916 | 38.00 | 56.38 | 66.52 | 63.50 | 78.42 | 88.00 | 95.77 | 88.94 | 82.76 | a | 71.06 | 57.33 | 40.35 | 68.92 | ||||||||||||
1917 | 37.03 | a | 47.18 | 54.21 | b | 55.70 | 64.42 | 83.83 | 94.32 | 88.26 | 81.63 | 71.26 | 57.00 | a | 48.52 | 65.28 | ||||||||||
1918 | 36.72 | b | 49.74 | a | 56.52 | 55.07 | a | 74.45 | 89.90 | 88.03 | 95.41 | b | 80.03 | 67.26 | 52.17 | a | 44.60 | a | 65.83 | |||||||
1919 | 35.90 | 37.89 | a | 58.07 | a | 61.40 | 72.77 | 79.37 | 87.55 | 92.50 | a | 82.50 | 66.03 | 54.86 | a | 41.43 | a | 64.19 | ||||||||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | 58.35 | 61.70 | 72.77 | 82.20 | 89.48 | 90.13 | 85.17 | 76.16 | 64.13 | 49.87 | 73.00 | b | ||||||||||
1922 | 42.58 | 52.63 | a | 58.13 | a | 64.90 | 75.48 | 87.63 | 93.19 | 94.84 | 90.00 | 77.23 | 63.37 | 53.53 | a | 71.13 | ||||||||||
1923 | 63.65 | 42.92 | b | 55.68 | 71.03 | a | 78.35 | 89.67 | 95.39 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.96 | e | |||||
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 96.53 | a | 83.21 | a | 74.14 | c | 64.13 | 35.26 | 70.65 | g | ||
1925 | 45.29 | 57.00 | a | 68.48 | b | 75.68 | b | 82.81 | ----- | z | 95.07 | b | 89.19 | 81.55 | a | 57.53 | a | 45.17 | a | ----- | z | 69.78 | b | |||
1926 | ----- | z | 56.93 | ----- | z | ----- | z | ----- | z | 87.17 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.05 | j | ||
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.87 | ----- | z | ----- | z | 75.87 | k | |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.85 | c | 91.04 | c | 91.67 | g | 83.33 | 68.45 | 54.71 | b | 46.32 | 70.28 | f | |||
1929 | 41.58 | 39.89 | 57.90 | 69.27 | 75.65 | 87.43 | 93.32 | 90.45 | 79.60 | 66.18 | c | 51.79 | a | 56.71 | 67.48 | |||||||||||
1930 | 29.26 | 61.89 | 59.00 | a | 73.87 | 77.30 | a | 88.57 | 90.57 | a | 91.13 | 83.15 | j | ----- | z | 61.95 | h | 34.74 | 67.37 | c | ||||||
1931 | 47.81 | 56.86 | ----- | z | 60.70 | c | 73.67 | a | 91.87 | 94.42 | 89.03 | 90.13 | 76.10 | a | 56.57 | 49.71 | 71.53 | a | ||||||||
1932 | 39.52 | ----- | z | 49.23 | 68.10 | 80.52 | 79.90 | 95.61 | 91.74 | 80.83 | 71.63 | a | 59.00 | 40.26 | 68.76 | a | ||||||||||
1933 | 67.10 | ----- | z | 64.52 | 68.80 | 77.68 | 94.00 | 96.71 | 88.87 | 89.53 | 76.29 | 63.70 | 59.19 | 76.94 | a | |||||||||||
1934 | 59.61 | 56.25 | 63.84 | 73.07 | 87.26 | 93.30 | 100.48 | 94.16 | 84.00 | 76.42 | 61.60 | 55.23 | a | 75.44 | ||||||||||||
1935 | 57.68 | 55.89 | 64.19 | 72.60 | 69.80 | a | 90.40 | 96.87 | a | 92.03 | 83.63 | 73.06 | 56.20 | 47.97 | 71.69 | |||||||||||
1936 | 45.65 | 44.66 | 65.52 | 72.20 | 74.13 | 89.83 | 94.97 | 92.35 | h | 81.23 | 67.29 | 59.83 | 52.13 | 67.95 | a | |||||||||||
1937 | 39.19 | 50.61 | 52.00 | 68.47 | 79.23 | 84.93 | 95.29 | 96.81 | 84.67 | 70.90 | 56.59 | a | 45.10 | a | 68.65 | |||||||||||
1938 | 48.26 | 49.54 | 63.52 | 66.90 | 75.03 | 85.90 | 92.19 | 92.84 | 83.50 | 74.35 | 53.77 | 48.10 | 69.49 | |||||||||||||
1939 | 47.23 | 44.11 | 56.58 | 68.03 | 73.47 | a | 85.04 | e | 93.64 | c | 90.68 | 86.50 | 74.58 | 58.27 | 53.94 | 69.34 | ||||||||||
1940 | 31.52 | 49.45 | 58.61 | 66.13 | 77.52 | 85.83 | 94.58 | 87.84 | 83.80 | 77.26 | 54.27 | 51.13 | 68.16 | |||||||||||||
1941 | 46.87 | 50.68 | 55.03 | 65.63 | 77.90 | 82.13 | 88.59 | i | 89.76 | j | 80.95 | h | 68.81 | 63.80 | 51.55 | 62.49 | c | |||||||||
1942 | 48.23 | a | 44.54 | 55.65 | 69.07 | 80.32 | 84.45 | a | 94.10 | a | 92.13 | a | 83.10 | 68.19 | 57.67 | i | 47.35 | 69.74 | a | |||||||
1943 | 47.29 | 55.46 | 57.97 | a | 73.40 | 72.71 | 90.20 | 93.23 | 93.52 | 83.70 | 72.52 | 57.67 | 44.06 | 70.14 | ||||||||||||
1944 | 45.68 | 49.97 | 57.39 | 58.67 | 76.61 | 86.60 | 88.27 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.17 | e | ||||||
1945 | ----- | z | ----- | z | ----- | z | 66.03 | 83.94 | 86.62 | a | 93.43 | a | ----- | z | 71.78 | c | 78.61 | ----- | z | ----- | z | 80.07 | f | |||
1946 | 46.42 | 49.43 | 63.27 | a | 77.93 | 70.06 | ----- | z | ----- | z | 89.00 | 80.60 | 72.84 | 42.14 | a | 49.97 | a | 64.17 | b | |||||||
1947 | 48.52 | 47.82 | 54.29 | 68.21 | a | 74.10 | a | ----- | z | ----- | z | ----- | z | 87.79 | a | ----- | z | ----- | z | ----- | z | 63.45 | f | |||
1948 | ----- | z | 39.24 | 47.06 | 75.40 | 78.03 | 85.10 | 92.84 | 88.90 | a | 86.00 | 74.13 | 53.60 | 51.90 | 70.20 | a | ||||||||||
1949 | 38.35 | ----- | z | 58.77 | ----- | z | 76.83 | m | 83.83 | 90.29 | 88.06 | 83.21 | a | 70.32 | 67.33 | 51.61 | 70.20 | c | ||||||||
1950 | 51.61 | 58.46 | 60.71 | j | 67.80 | 78.26 | 88.30 | 85.26 | 85.06 | 75.53 | 78.61 | 57.27 | 52.23 | 70.76 | a | |||||||||||
1951 | 44.00 | 53.46 | 57.81 | 63.43 | 75.06 | 77.83 | 90.84 | 91.00 | 82.03 | 70.00 | 54.86 | a | 48.20 | a | 67.38 | |||||||||||
1952 | 53.03 | 52.34 | 53.61 | 66.20 | 76.87 | 96.63 | 94.19 | 92.32 | 84.00 | 72.32 | 61.50 | p | 47.07 | a | 71.69 | a | ||||||||||
1953 | 58.39 | 53.61 | 62.97 | 65.17 | 74.03 | 94.50 | 92.35 | 89.77 | 87.77 | 72.45 | 57.13 | 42.97 | 70.93 | |||||||||||||
1954 | 48.50 | a | 62.07 | 54.19 | 74.77 | 73.90 | b | 91.87 | 95.07 | a | 89.68 | 87.50 | 69.81 | 61.07 | 53.23 | a | 71.80 | |||||||||
1955 | 46.39 | 47.96 | 59.71 | 70.47 | 75.19 | e | 82.03 | 94.00 | 91.19 | 83.77 | 76.26 | 56.93 | 50.52 | 69.54 | ||||||||||||
1956 | 48.94 | 43.86 | a | 72.00 | w | 66.53 | 82.61 | 93.55 | a | 91.65 | 90.94 | 86.80 | 75.87 | 54.52 | a | 53.77 | 71.73 | a | ||||||||
1957 | 44.23 | a | 56.54 | 54.71 | 60.47 | 70.03 | 84.43 | 94.63 | a | 90.71 | 81.40 | 67.03 | 51.10 | 57.71 | 67.75 | |||||||||||
1958 | 47.84 | 48.00 | a | 39.32 | 61.34 | a | 77.00 | 86.97 | 88.77 | 92.26 | 83.87 | 72.68 | 59.52 | a | 49.03 | 67.22 | ||||||||||
1959 | 43.42 | 45.75 | 57.97 | 65.83 | 75.77 | a | 89.24 | a | 91.13 | a | 92.45 | 81.40 | 65.74 | 58.53 | 50.00 | a | 68.10 | |||||||||
1960 | 40.77 | 35.18 | a | 51.61 | 71.37 | 76.74 | 87.40 | 90.06 | 92.06 | 82.77 | 70.58 | 59.17 | a | 42.77 | 66.71 | |||||||||||
1961 | 49.26 | 49.46 | 54.87 | a | 66.17 | 78.52 | 86.30 | 89.16 | 88.50 | a | 78.93 | a | 72.32 | 49.03 | a | 42.16 | 67.06 | |||||||||
1962 | 39.84 | 52.75 | 56.58 | 67.30 | 82.45 | 83.63 | 88.94 | 94.58 | 81.83 | 75.26 | 58.93 | 51.65 | 69.48 | |||||||||||||
1963 | 41.47 | a | 54.86 | 61.10 | 74.27 | 81.42 | 90.20 | 97.10 | 91.68 | 86.03 | 80.58 | 63.17 | 37.74 | 71.63 | ||||||||||||
1964 | 51.97 | 39.68 | a | 56.68 | 65.50 | 79.84 | 87.97 | 98.29 | 93.19 | ----- | z | 74.61 | 58.43 | 37.06 | n | 70.62 | b | |||||||||
1965 | 54.79 | b | 50.75 | 46.71 | 74.90 | 79.68 | 82.53 | 91.94 | 93.19 | 79.33 | 77.26 | 65.60 | 56.00 | 71.06 | ||||||||||||
1966 | 39.13 | 44.85 | a | 61.90 | 62.90 | 84.68 | 90.20 | 96.48 | h | 87.42 | e | 80.33 | ----- | z | 47.37 | 45.90 | 64.47 | b | ||||||||
1967 | 55.26 | h | 53.64 | 67.33 | a | 73.20 | 76.76 | b | 81.35 | g | 91.10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.41 | g | |||
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | 67.36 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | 84.92 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.53 | o | 71.40 | a | 57.73 | 48.61 | 59.25 | i | ||
1972 | 50.61 | 57.15 | c | 69.08 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.95 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 46.60 | 49.80 | 58.03 | 67.63 | 76.76 | 86.75 | 92.66 | 91.38 | 83.53 | 72.56 | 58.31 | 48.04 | 69.20 | |||||||||||||
S.D. | 7.63 | 6.73 | 6.82 | 4.82 | 4.16 | 4.51 | 3.45 | 3.00 | 3.42 | 4.03 | 5.35 | 6.11 | 2.52 | |||||||||||||
SKEW | 0.21 | -0.43 | -0.43 | -0.30 | -0.08 | -0.19 | -0.28 | -0.07 | -0.54 | -0.82 | -0.63 | -0.62 | 0.16 | |||||||||||||
MAX | 67.10 | 62.07 | 72.71 | 77.93 | 87.26 | 96.63 | 100.48 | 98.13 | 90.13 | 80.58 | 67.79 | 59.19 | 75.44 | |||||||||||||
MIN | 29.26 | 35.18 | 39.32 | 55.07 | 64.42 | 77.37 | 83.84 | 83.48 | 71.78 | 57.53 | 42.14 | 32.55 | 64.19 | |||||||||||||
YRS | 58 | 59 | 59 | 61 | 61 | 60 | 57 | 55 | 58 | 60 | 58 | 58 | 33 |