YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1903 | ----- | z | ----- | z | ----- | z | 51.29 | d | 59.75 | a | 72.27 | 73.69 | 74.58 | a | ----- | z | ----- | z | 35.62 | a | 29.29 | 56.64 | e | |||
1904 | 29.07 | a | 29.45 | 36.32 | a | 54.25 | 59.37 | a | 67.32 | 75.35 | 76.97 | a | 67.50 | 54.63 | a | 44.88 | b | 32.89 | d | 52.33 | ||||||
1905 | 30.48 | b | 31.67 | a | 46.93 | a | 53.95 | 58.74 | h | 65.50 | c | 77.44 | 73.63 | a | 64.58 | 44.94 | ----- | z | 27.52 | h | 54.35 | c | ||||
1906 | 26.57 | a | 35.21 | b | 39.81 | e | 56.04 | f | 60.29 | l | 63.07 | b | 83.07 | a | 74.41 | c | 66.26 | m | 54.23 | k | 37.35 | c | 29.30 | c | 48.60 | d |
1907 | 16.63 | a | 32.46 | a | 40.68 | 50.84 | b | 63.32 | a | 64.27 | b | 75.24 | b | 68.72 | a | 61.40 | 59.25 | q | 44.79 | a | ----- | z | 51.83 | b | ||
1908 | ----- | z | ----- | z | ----- | z | ----- | z | 57.76 | 68.42 | 78.06 | 75.82 | a | 65.93 | ----- | z | 44.12 | a | 28.56 | 59.81 | e | |||||
1909 | 17.53 | b | 35.63 | a | 45.66 | 49.98 | 58.58 | a | 68.16 | h | 72.38 | a | 71.21 | l | 66.24 | k | ----- | z | ----- | z | 24.57 | h | 46.63 | f | ||
1910 | 27.52 | a | 32.27 | b | 45.73 | 55.00 | c | 66.20 | c | 67.52 | e | 74.90 | g | 75.52 | a | 63.40 | e | 59.25 | c | 42.52 | a | 34.30 | f | 53.49 | b | |
1911 | 27.21 | g | 28.78 | e | 42.15 | e | 50.62 | a | 56.95 | i | 67.57 | i | 81.05 | k | 72.79 | q | 59.91 | m | 53.68 | f | 36.71 | k | 31.25 | k | 40.52 | i |
1912 | 23.59 | h | 38.02 | b | 40.58 | k | 51.57 | i | 62.89 | m | 64.07 | p | 69.31 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.02 | k |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.50 | u | 78.42 | 73.35 | a | 61.32 | 51.06 | 40.18 | 32.48 | 56.14 | f | |||||
1921 | 30.40 | 33.20 | a | 43.76 | 49.83 | a | 62.09 | b | 69.37 | 74.92 | 74.73 | a | 57.62 | 55.40 | a | 37.95 | a | 29.47 | a | 51.56 | ||||||
1922 | 16.89 | 25.46 | 38.97 | 49.36 | a | 59.31 | 75.40 | a | 79.29 | 75.81 | 67.75 | 56.85 | a | 36.98 | a | 20.86 | c | 50.24 | ||||||||
1923 | 33.19 | 26.11 | 43.15 | 52.90 | 60.58 | 66.13 | 77.21 | 77.11 | 68.75 | 54.68 | 40.90 | 31.02 | 52.64 | |||||||||||||
1924 | 22.81 | 41.55 | 44.21 | 52.45 | 68.56 | 70.30 | 76.50 | 74.29 | 66.61 | b | 52.98 | 37.42 | d | 24.02 | b | 52.64 | ||||||||||
1925 | 29.39 | 39.88 | b | 46.00 | a | 55.92 | 63.79 | b | 70.75 | 80.52 | 73.71 | 64.12 | ----- | z | 36.82 | 35.86 | b | 54.25 | a | |||||||
1926 | 30.48 | c | 40.24 | a | 49.13 | 58.53 | a | 59.23 | 70.92 | 79.44 | 74.27 | 58.62 | 53.63 | 41.59 | c | 28.96 | e | 53.75 | ||||||||
1927 | 25.77 | c | 34.81 | a | 42.53 | 49.52 | 57.30 | a | 69.88 | 77.11 | 74.79 | 60.98 | b | 51.08 | 38.44 | c | 24.33 | a | 50.55 | |||||||
1928 | 26.43 | a | 34.10 | c | 44.50 | 48.45 | 65.94 | 68.83 | 78.87 | 73.21 | 66.38 | 52.61 | 38.47 | a | 28.29 | 52.17 | ||||||||||
1929 | 16.52 | 19.96 | 44.15 | 48.32 | 62.02 | 66.50 | 74.95 | 77.61 | 64.26 | a | 55.87 | a | 36.00 | a | 32.11 | 49.86 | ||||||||||
1930 | 14.69 | 36.80 | 46.18 | a | 57.05 | 60.80 | c | 66.02 | 77.27 | a | 77.03 | 65.35 | 49.63 | 36.33 | 29.40 | 51.38 | ||||||||||
1931 | 31.94 | 34.77 | 44.06 | 53.28 | 65.35 | 67.63 | 77.42 | 75.52 | 62.82 | 52.27 | 35.60 | 25.27 | 52.16 | |||||||||||||
1932 | 22.38 | a | 28.10 | 42.66 | 53.98 | 59.63 | 72.55 | 71.48 | 72.81 | 67.43 | 52.85 | a | 41.57 | 26.72 | a | 51.01 | ||||||||||
1933 | 29.18 | 22.12 | 42.40 | 52.19 | a | 55.03 | 68.48 | 74.94 | 75.60 | 60.98 | 55.19 | 41.35 | 35.39 | 51.07 | ||||||||||||
1934 | 35.83 | a | 42.73 | 50.47 | 61.63 | 65.42 | 71.43 | a | 74.87 | 77.19 | 61.43 | 54.97 | 43.37 | 33.05 | 56.03 | |||||||||||
1935 | 26.84 | b | 36.46 | 40.55 | 49.38 | 61.95 | 67.72 | a | 74.98 | 73.21 | 69.03 | 50.21 | 34.03 | a | 30.15 | 51.21 | ||||||||||
1936 | 31.40 | 18.40 | 41.92 | 56.57 | a | 66.82 | 69.90 | a | 76.00 | 75.81 | 64.42 | 58.08 | 35.21 | b | 32.13 | 52.22 | ||||||||||
1937 | 11.48 | 25.59 | 45.08 | 49.97 | 61.85 | 66.52 | 76.94 | 70.90 | 68.74 | a | 58.27 | 41.88 | 34.00 | 50.94 | ||||||||||||
1938 | 32.34 | 34.34 | 43.76 | 54.65 | 63.10 | 72.65 | 80.79 | 73.97 | 73.03 | a | 56.42 | 38.74 | a | 32.63 | a | 54.70 | ||||||||||
1939 | 34.81 | 30.96 | 45.15 | 56.43 | 64.31 | 67.20 | 78.17 | a | 79.11 | 67.50 | 54.32 | 42.43 | 37.97 | b | 54.86 | |||||||||||
1940 | 32.08 | 37.22 | 48.00 | 54.77 | 66.08 | 73.73 | 76.55 | 76.92 | 69.82 | 57.04 | c | 34.05 | 34.42 | a | 55.06 | |||||||||||
1941 | 33.05 | 40.05 | 50.35 | 56.22 | a | 60.19 | 67.25 | 81.13 | 73.26 | 60.38 | 52.21 | 42.87 | 34.55 | a | 54.29 | |||||||||||
1942 | 24.10 | 35.52 | 44.48 | 55.17 | 58.65 | 66.58 | 77.82 | 79.22 | a | 70.38 | 55.90 | 36.31 | a | 29.90 | 52.84 | |||||||||||
1943 | 21.19 | 34.96 | 41.19 | 55.35 | 57.55 | 65.30 | 76.77 | 72.79 | 70.38 | 53.37 | 40.12 | 31.53 | 51.71 | |||||||||||||
1944 | 28.21 | 34.48 | 41.50 | 53.52 | a | 62.79 | 68.47 | a | 77.68 | 73.94 | 69.14 | a | 61.27 | a | 38.58 | d | 27.82 | 53.12 | ||||||||
1945 | 32.29 | 38.18 | 41.68 | 49.87 | 62.15 | 67.63 | 78.05 | 77.16 | 64.80 | 57.15 | 37.59 | a | 31.34 | 53.16 | ||||||||||||
1946 | 31.68 | 36.00 | 44.95 | 53.47 | 64.32 | a | 66.12 | a | 75.71 | 75.97 | 64.30 | 50.25 | a | 35.25 | b | 32.55 | 52.55 | |||||||||
1947 | 27.27 | 38.70 | 49.11 | 55.28 | 70.18 | l | 67.61 | c | 75.03 | 72.95 | c | 66.04 | c | 53.09 | d | 41.18 | 32.18 | 52.59 | a | |||||||
1948 | 30.85 | 31.10 | 41.81 | 47.50 | a | 57.83 | b | 70.20 | 71.98 | a | 71.21 | 64.28 | 51.57 | j | 38.43 | 21.74 | 49.72 | a | ||||||||
1949 | 11.68 | 27.32 | 44.35 | 55.47 | 66.37 | 68.63 | 74.15 | 74.53 | 68.18 | 50.15 | 45.78 | 32.45 | 51.59 | |||||||||||||
1950 | 10.19 | 31.31 | a | 40.29 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.27 | i | ||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.10 | 67.97 | 51.76 | 38.07 | 25.24 | 51.63 | g | |||||
1952 | 22.18 | 33.07 | 42.42 | 55.08 | 62.77 | 68.17 | 76.97 | 74.45 | 69.38 | 59.98 | 35.53 | 33.39 | 52.78 | |||||||||||||
1953 | 38.56 | 39.78 | a | 45.75 | a | 50.97 | 58.70 | a | 64.23 | 76.13 | 73.52 | 67.50 | 55.84 | 43.82 | b | 36.52 | 54.28 | |||||||||
1954 | 26.89 | 36.29 | 41.03 | 49.22 | 63.21 | 64.87 | 73.89 | 70.79 | 64.75 | 51.35 | 44.93 | 31.97 | a | 51.60 | ||||||||||||
1955 | 28.57 | a | 31.32 | 37.40 | 46.25 | 56.05 | 70.27 | 72.76 | 74.97 | 65.58 | 52.03 | 29.17 | 26.10 | 49.21 | ||||||||||||
1956 | 29.92 | 23.52 | a | 40.31 | 56.97 | 66.02 | 65.83 | 78.94 | 75.15 | 66.20 | 51.39 | 35.64 | a | 32.16 | 51.84 | |||||||||||
1957 | 17.22 | a | 30.21 | 43.16 | 54.73 | 66.00 | 70.05 | 72.84 | 70.34 | 67.95 | 51.13 | a | 39.41 | a | 36.40 | 51.62 | ||||||||||
1958 | 35.69 | 44.02 | 43.15 | 51.35 | 69.29 | 73.17 | 80.03 | 79.00 | 64.73 | 54.55 | 38.40 | 32.76 | 55.51 | |||||||||||||
1959 | 31.13 | a | 33.22 | a | 44.55 | 54.07 | 57.53 | 68.30 | 78.42 | 71.66 | 61.68 | 51.21 | 35.87 | 32.98 | 51.72 | |||||||||||
1960 | 24.39 | 36.36 | 43.68 | 51.97 | 57.48 | 69.25 | 80.68 | 70.69 | 66.98 | e | 52.43 | c | 39.40 | 29.26 | 51.88 | |||||||||||
1961 | 33.42 | 40.57 | ----- | z | ----- | z | 59.60 | 74.00 | a | 78.77 | 80.02 | ----- | z | ----- | z | ----- | z | 29.81 | 56.60 | e | ||||||
1962 | 27.60 | a | 35.75 | 41.05 | a | 55.45 | k | 55.56 | 65.90 | 72.69 | 66.85 | 65.92 | 51.58 | 40.70 | 35.31 | 50.81 | a | |||||||||
1963 | 24.27 | 37.88 | 46.02 | 49.55 | 61.13 | 68.57 | 71.26 | 74.03 | 68.82 | 54.15 | 41.03 | 29.55 | 52.19 | |||||||||||||
1964 | 31.79 | 36.33 | 42.68 | 50.08 | 59.52 | 67.19 | a | 74.29 | 68.37 | 61.38 | 52.58 | 36.78 | 25.03 | 50.50 | ||||||||||||
1965 | 30.00 | 36.41 | 42.65 | 54.57 | 59.53 | 68.85 | 74.89 | 73.35 | 60.10 | 54.56 | 41.75 | 31.24 | 52.33 | |||||||||||||
1966 | 28.40 | 36.32 | 43.26 | 53.53 | 63.15 | 64.85 | 71.18 | 72.87 | 67.65 | 50.68 | 41.97 | 35.53 | 52.45 | |||||||||||||
1967 | 36.02 | 41.39 | 43.06 | 47.60 | 58.94 | 71.23 | 76.13 | 78.81 | 70.40 | 52.11 | 40.48 | 29.27 | 53.79 | |||||||||||||
1968 | 31.08 | 39.93 | 47.71 | 51.25 | 62.02 | 68.68 | 76.97 | 69.26 | 64.47 | 48.47 | 39.67 | 28.05 | 52.30 | |||||||||||||
1969 | 17.03 | 29.50 | 43.77 | 50.68 | 62.02 | 71.52 | 71.90 | 69.63 | 63.88 | 48.63 | a | 39.21 | a | 32.48 | b | 50.02 | ||||||||||
1970 | 27.21 | 38.75 | 43.21 | 46.73 | 59.24 | 71.22 | 73.82 | 72.34 | 58.19 | a | 49.03 | 36.98 | 25.50 | a | 50.19 | |||||||||||
1971 | 30.28 | b | 36.55 | 36.60 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.41 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.87 | 33.99 | 43.61 | 52.60 | 61.54 | 68.62 | 76.30 | 74.19 | 65.39 | 53.38 | 39.16 | 30.58 | 52.27 | |||||||||||||
S.D. | 6.72 | 5.59 | 2.90 | 3.24 | 3.41 | 2.72 | 2.75 | 2.84 | 3.46 | 3.20 | 3.34 | 3.80 | 1.56 | |||||||||||||
SKEW | -0.82 | -0.77 | 0.19 | 0.19 | 0.25 | 0.32 | 0.06 | -0.27 | -0.29 | 0.18 | -0.17 | -0.47 | 0.46 | |||||||||||||
MAX | 38.56 | 44.02 | 50.47 | 61.63 | 69.29 | 75.40 | 83.07 | 80.02 | 73.03 | 61.27 | 45.78 | 37.97 | 56.03 | |||||||||||||
MIN | 10.19 | 18.40 | 36.32 | 46.25 | 55.03 | 63.07 | 71.18 | 66.85 | 57.62 | 44.94 | 29.17 | 20.86 | 49.21 | |||||||||||||
YRS | 56 | 58 | 55 | 53 | 53 | 55 | 56 | 57 | 54 | 50 | 55 | 54 | 44 |