YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.23 | q | 59.77 | 40.57 | 22.14 | b | 40.83 | i | ||
1904 | 20.69 | e | 18.75 | a | 36.14 | b | 50.43 | b | 67.61 | 75.34 | a | 79.70 | a | 76.68 | 71.13 | 58.71 | 47.63 | 27.58 | 52.53 | |||||||
1905 | 18.62 | b | 23.93 | a | 40.74 | 54.03 | 64.87 | a | 74.73 | 78.58 | 78.71 | 74.20 | 58.23 | 43.23 | 33.00 | 53.57 | ||||||||||
1906 | 30.69 | b | 28.11 | 31.03 | 57.97 | 66.87 | 74.43 | 80.10 | 81.00 | 77.03 | 57.90 | a | 41.45 | a | 31.16 | 54.81 | ||||||||||
1907 | 25.00 | a | 31.85 | b | 45.10 | a | 45.08 | e | 59.80 | a | 73.73 | 79.65 | 76.61 | 69.22 | c | 56.87 | 42.07 | 31.84 | 53.07 | |||||||
1908 | 30.10 | 28.21 | 41.74 | 55.83 | 66.87 | 74.13 | 80.97 | 79.81 | 78.37 | 60.00 | a | 46.21 | a | 30.42 | 56.05 | |||||||||||
1909 | 27.86 | b | 30.21 | 36.19 | 48.17 | 64.35 | 75.27 | 80.58 | 82.16 | 69.80 | 56.10 | a | 51.03 | a | 21.36 | f | 56.52 | a | ||||||||
1910 | 25.76 | b | 23.85 | a | 52.43 | a | 60.33 | 63.83 | a | 80.57 | 87.39 | 81.63 | a | 70.47 | 63.27 | a | 34.87 | 26.42 | 55.90 | |||||||
1911 | 27.64 | f | 31.65 | b | 46.00 | g | 54.29 | b | 73.68 | 81.17 | 83.66 | b | 79.23 | 71.17 | g | 54.97 | a | 36.68 | b | 35.08 | e | 58.93 | c | |||
1912 | 6.39 | 20.29 | a | 30.90 | 58.23 | 68.23 | a | 75.20 | 80.84 | 75.73 | a | 70.93 | a | 61.00 | c | 45.62 | a | 35.06 | 52.37 | |||||||
1913 | 27.97 | 23.79 | 37.62 | b | 57.13 | 65.35 | 76.10 | j | 80.23 | a | 79.61 | 70.90 | 56.69 | b | 47.86 | a | 38.16 | 53.21 | a | |||||||
1914 | 32.03 | b | 20.50 | 37.10 | b | 56.07 | b | 69.67 | a | 75.47 | 83.58 | 80.37 | a | 71.34 | a | 64.16 | 44.87 | 22.23 | a | 54.78 | ||||||
1915 | 24.03 | a | 33.63 | a | 37.94 | 65.90 | 60.87 | 71.83 | 76.83 | a | 73.65 | 72.03 | 60.71 | 46.31 | a | 29.77 | 54.46 | |||||||||
1916 | 30.30 | a | 21.86 | 37.74 | 54.80 | 66.37 | a | 70.90 | 90.55 | 82.67 | a | 69.33 | 57.90 | a | 41.32 | b | 25.79 | b | 54.13 | |||||||
1917 | 22.43 | c | 18.57 | 37.17 | a | 50.43 | 61.87 | 69.55 | a | 84.21 | l | 77.94 | 69.67 | 46.77 | a | 44.73 | 21.97 | 47.37 | a | |||||||
1918 | 11.55 | b | 26.50 | 45.39 | 51.43 | b | 71.07 | a | 76.00 | a | 81.37 | a | 84.55 | 67.03 | 63.35 | 45.47 | 36.29 | 55.00 | ||||||||
1919 | 30.23 | 31.56 | a | 41.53 | a | 53.97 | 64.55 | 80.90 | a | 86.46 | g | 79.43 | a | 74.17 | 58.74 | 38.87 | 19.60 | a | 52.14 | a | ||||||
1920 | 17.94 | 25.41 | 41.65 | 48.93 | b | 65.68 | 79.39 | b | 78.06 | 78.41 | b | 74.93 | 67.40 | a | 40.69 | a | 32.79 | b | 54.27 | |||||||
1921 | 30.81 | 34.44 | a | 44.97 | 59.63 | 69.29 | 82.33 | 91.71 | 80.43 | a | 74.93 | 57.90 | 37.40 | 30.35 | 57.85 | |||||||||||
1922 | 24.00 | b | 27.93 | 39.55 | 54.07 | b | 73.03 | 79.17 | 79.00 | 82.70 | a | 76.03 | a | 63.39 | 46.04 | b | 26.90 | a | 55.98 | |||||||
1923 | 24.81 | 20.23 | b | 33.29 | 52.72 | a | 68.00 | b | 81.66 | a | 85.00 | 79.20 | a | 72.40 | 58.16 | 46.53 | 39.21 | b | 55.10 | |||||||
1924 | 19.58 | 28.59 | 34.65 | 53.93 | 59.53 | a | 73.72 | a | 78.87 | a | 77.87 | 67.10 | a | 68.13 | 43.93 | 22.37 | a | 52.36 | ||||||||
1925 | 26.35 | 33.14 | 43.16 | 63.47 | 65.81 | 79.14 | b | 81.10 | 82.14 | c | 75.46 | b | 46.33 | a | 42.41 | c | 23.52 | b | 55.17 | |||||||
1926 | 27.39 | 30.41 | a | 31.84 | 51.79 | a | 69.81 | 73.31 | a | 81.80 | a | 80.52 | 69.59 | a | 55.68 | 37.70 | 25.90 | 52.98 | ||||||||
1927 | 23.33 | a | 34.86 | 45.84 | 53.47 | 64.39 | 74.00 | 80.90 | 80.58 | 76.40 | 63.20 | a | 42.38 | a | 26.63 | d | 55.50 | |||||||||
1928 | 28.32 | 32.48 | b | 42.43 | a | 50.23 | 71.23 | 72.21 | a | 81.58 | 81.03 | 70.10 | 61.70 | a | 43.43 | 32.68 | 55.62 | |||||||||
1929 | 17.52 | 20.93 | 43.87 | 57.14 | a | 65.20 | a | 74.50 | 82.48 | 79.52 | 70.93 | 57.50 | a | 39.97 | 29.52 | 53.26 | ||||||||||
1930 | 20.43 | a | 37.54 | 40.90 | 58.07 | a | 68.71 | 77.76 | a | 85.03 | a | 85.06 | 75.73 | 56.07 | b | 49.50 | 31.00 | 57.15 | ||||||||
1931 | 32.03 | 37.75 | 39.63 | a | 60.79 | a | 65.94 | 81.90 | a | 89.27 | a | 84.13 | 79.50 | 62.73 | a | 51.60 | 37.69 | b | 60.25 | |||||||
1932 | 32.33 | a | 35.28 | 32.60 | a | 53.53 | 70.13 | a | 81.14 | a | 84.94 | 82.45 | 74.77 | 56.97 | a | 39.97 | a | 29.53 | a | 56.14 | ||||||
1933 | 36.81 | 29.30 | a | 37.69 | b | 52.23 | 66.16 | 84.77 | 83.19 | 80.19 | 77.47 | 57.29 | 40.53 | 30.00 | 56.30 | |||||||||||
1934 | 33.74 | 27.21 | 38.36 | c | 54.07 | b | 79.55 | 85.73 | 86.68 | 79.52 | 70.21 | a | 63.23 | 47.50 | 26.67 | a | 57.70 | |||||||||
1935 | 25.14 | c | 29.00 | a | 42.30 | a | 52.43 | 61.41 | b | 72.30 | c | 85.48 | b | 80.03 | 73.62 | a | 61.19 | 41.27 | d | 27.13 | 54.28 | |||||
1936 | 18.10 | a | 14.62 | 41.39 | 50.13 | 75.19 | 77.23 | 91.57 | a | 86.42 | 73.93 | b | 56.65 | 40.69 | a | 35.13 | a | 55.09 | ||||||||
1937 | 27.77 | a | 26.54 | 36.77 | 51.72 | a | 68.90 | 75.57 | 85.07 | a | 88.00 | 74.83 | 55.74 | ----- | z | 29.10 | j | 59.09 | b | |||||||
1938 | 24.39 | 31.93 | 47.58 | 56.03 | 65.61 | 74.13 | 79.65 | 81.33 | a | 68.77 | 63.48 | f | 44.13 | 30.03 | 54.87 | a | ||||||||||
1939 | 30.65 | 28.93 | 39.58 | 50.87 | 71.10 | 77.59 | a | 83.90 | b | 81.35 | 78.72 | a | 59.67 | a | 46.33 | 37.10 | 57.15 | |||||||||
1940 | 18.00 | 29.79 | a | 31.87 | 52.73 | 63.00 | a | 74.37 | 81.87 | 76.53 | a | 72.23 | 60.97 | 40.70 | 30.61 | 52.72 | ||||||||||
1941 | 29.00 | 27.44 | a | 34.29 | 62.10 | 72.68 | 78.20 | 84.06 | 82.68 | 74.97 | a | 59.58 | 46.31 | a | 35.87 | 57.27 | ||||||||||
1942 | 25.55 | 27.29 | 41.65 | 63.20 | 65.90 | 75.83 | 80.71 | 77.58 | 68.23 | 61.29 | 43.87 | 24.68 | 54.65 | |||||||||||||
1943 | 24.47 | a | 31.25 | 35.74 | 54.43 | 66.13 | 78.43 | 82.19 | 80.71 | 66.97 | 59.77 | 39.57 | 33.97 | 54.47 | ||||||||||||
1944 | 35.68 | 31.18 | a | 34.81 | 51.53 | 71.65 | 79.20 | 81.16 | 81.29 | 72.17 | a | 61.71 | 49.07 | a | 25.61 | 56.25 | ||||||||||
1945 | 22.23 | 29.43 | 54.06 | 57.43 | 63.35 | 69.63 | 78.94 | 79.65 | 70.10 | 57.71 | 43.73 | 23.35 | 54.13 | |||||||||||||
1946 | 30.81 | 31.25 | 50.84 | 61.57 | 66.29 | 75.83 | 82.45 | 78.61 | 73.17 | 66.42 | 47.40 | 35.61 | 58.35 | |||||||||||||
1947 | 30.90 | 25.54 | 36.48 | 54.20 | 61.94 | 73.24 | a | 80.16 | 87.06 | 74.77 | 71.35 | 36.63 | 30.52 | 55.23 | ||||||||||||
1948 | 23.90 | a | 27.10 | 40.23 | 60.87 | 65.68 | 76.60 | 83.48 | b | 83.97 | a | ----- | z | 59.86 | c | 46.90 | 32.65 | 54.66 | a | |||||||
1949 | 29.52 | 29.00 | 39.65 | 57.10 | 70.23 | 81.33 | 82.77 | 81.42 | 68.31 | a | 64.50 | a | 45.23 | 34.39 | 56.95 | |||||||||||
1950 | 31.29 | 28.36 | 34.16 | 47.80 | 67.77 | 76.43 | 78.26 | 74.35 | 69.34 | a | 66.10 | b | 39.97 | 22.48 | 53.03 | |||||||||||
1951 | 22.90 | b | 27.64 | 33.97 | 50.60 | 71.39 | 72.10 | a | 79.42 | 75.03 | 68.14 | a | 60.97 | 36.00 | a | ----- | z | 54.38 | a | |||||||
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.81 | o | ----- | z |
1953 | 30.26 | d | 32.36 | 40.84 | 50.73 | 69.50 | a | 81.07 | a | 83.72 | b | 82.42 | 74.73 | 68.67 | a | 50.93 | 33.87 | 58.26 | ||||||||
1954 | 28.55 | 40.07 | 38.90 | 61.77 | 63.87 | 80.93 | 81.81 | 79.19 | 72.57 | 59.48 | 46.50 | 30.55 | 57.02 | |||||||||||||
1955 | 26.06 | 29.25 | 39.74 | 64.20 | 72.45 | b | 76.10 | 88.26 | 86.67 | a | 76.53 | 62.81 | 40.03 | 27.00 | a | 57.43 | ||||||||||
1956 | 30.16 | 31.10 | 35.97 | 55.50 | 67.97 | 81.57 | 78.74 | 79.61 | 70.53 | 67.55 | 43.33 | 33.03 | 56.26 | |||||||||||||
1957 | 20.58 | 33.75 | 42.52 | 56.67 | 65.58 | 78.17 | 83.81 | 82.13 | 71.73 | 58.45 | 42.20 | 35.39 | 55.91 | |||||||||||||
1958 | 27.61 | 23.68 | 40.55 | 58.50 | 72.74 | 74.13 | 81.00 | 84.10 | 74.17 | 64.23 | 46.17 | 24.77 | 55.97 | |||||||||||||
1959 | 19.68 | 25.50 | 35.97 | 55.46 | f | 74.81 | 80.40 | 81.90 | 83.55 | 73.97 | 53.71 | 35.41 | a | 36.74 | 54.69 | a | ||||||||||
1960 | 29.03 | 28.03 | 31.13 | a | 59.70 | 64.84 | 74.90 | 81.13 | 81.23 | a | 73.50 | 59.83 | a | 46.80 | 29.71 | 54.99 | ||||||||||
1961 | 27.13 | a | 36.96 | a | 44.32 | i | 51.20 | 67.10 | 79.30 | 82.35 | 81.65 | 74.69 | a | 61.19 | 43.67 | 28.35 | 57.60 | a | ||||||||
1962 | 18.77 | i | 25.44 | a | 37.39 | 57.36 | b | 72.58 | 77.70 | 78.11 | d | 82.26 | 69.17 | 62.06 | 45.19 | i | 30.32 | c | 59.24 | b | ||||||
1963 | 13.90 | a | 23.93 | 43.45 | 61.24 | a | 66.97 | 81.90 | 85.82 | i | 79.11 | c | 73.97 | 71.71 | 49.93 | 20.94 | 53.37 | a | ||||||||
1964 | 32.81 | 34.14 | 39.65 | 56.75 | b | 74.61 | 80.23 | 84.10 | b | 79.30 | d | 70.23 | 59.37 | a | 49.60 | 27.67 | a | 57.37 | ||||||||
1965 | 24.74 | 28.15 | b | 31.77 | 52.43 | 74.48 | b | 77.17 | 81.29 | 78.03 | 69.80 | 61.39 | ----- | z | 33.33 | m | 57.93 | b | ||||||||
1966 | 19.17 | a | 29.68 | 44.68 | 52.97 | 65.13 | 79.90 | 86.77 | a | 79.87 | 72.43 | 61.23 | 46.27 | 29.74 | 55.65 | |||||||||||
1967 | 30.68 | 25.21 | 41.06 | 56.67 | 65.26 | 78.87 | 81.58 | 78.29 | 72.53 | 58.45 | 40.20 | 32.65 | 55.12 | |||||||||||||
1968 | 27.94 | 28.03 | 51.52 | 60.03 | 66.45 | 78.43 | 82.29 | 81.81 | 72.27 | 61.65 | 43.40 | 30.87 | 57.06 | |||||||||||||
1969 | 22.71 | 30.43 | 37.03 | 58.79 | a | 71.03 | 70.70 | 81.71 | 84.71 | 73.00 | 56.97 | 42.67 | 29.35 | 54.93 | ||||||||||||
1970 | 17.52 | 29.71 | 38.61 | 58.67 | 71.03 | 79.63 | 86.94 | 84.42 | 72.60 | 61.42 | ----- | z | ----- | z | 60.05 | b | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.59 | 28.49 | 39.46 | 55.48 | 67.77 | 77.06 | 82.54 | 80.73 | 72.47 | 60.37 | 43.54 | 29.86 | 55.45 | |||||||||||||
S.D. | 5.85 | 4.93 | 5.21 | 4.44 | 4.08 | 3.66 | 3.30 | 2.96 | 2.99 | 4.53 | 4.05 | 4.77 | 1.73 | |||||||||||||
SKEW | -0.75 | -0.28 | 0.64 | 0.17 | 0.34 | 0.02 | 0.94 | 0.10 | 0.20 | -0.20 | -0.12 | -0.15 | 0.21 | |||||||||||||
MAX | 36.81 | 40.07 | 54.06 | 65.90 | 79.55 | 85.73 | 91.71 | 88.00 | 79.50 | 71.71 | 51.60 | 39.21 | 60.25 | |||||||||||||
MIN | 6.39 | 14.62 | 30.90 | 45.08 | 59.53 | 69.55 | 76.83 | 73.65 | 66.97 | 46.33 | 34.87 | 19.60 | 52.36 | |||||||||||||
YRS | 64 | 66 | 64 | 65 | 66 | 65 | 63 | 66 | 64 | 66 | 63 | 62 | 51 |