YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | 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 | 50.63 | g | 58.34 | 68.65 | 75.47 | 72.55 | 64.13 | 45.27 | 29.90 | a | 26.33 | b | 55.08 | d | ||||||
1920 | 30.56 | 31.22 | 37.44 | 37.22 | 57.85 | a | 67.00 | a | 72.30 | a | 68.31 | 61.15 | 50.16 | 34.62 | 28.29 | 48.01 | ||||||||||
1921 | 29.88 | a | 32.66 | 43.87 | 44.78 | 56.68 | 67.70 | 72.48 | 70.13 | 62.17 | 54.11 | 40.08 | 31.39 | 50.49 | ||||||||||||
1922 | 20.90 | 28.02 | 38.24 | 44.95 | 58.68 | 70.58 | 72.03 | 73.53 | 64.53 | 50.94 | 34.50 | 29.60 | 48.88 | |||||||||||||
1923 | 33.98 | a | 25.16 | 31.43 | b | 47.27 | 55.81 | 65.85 | 73.02 | 68.47 | 59.93 | 44.29 | 39.23 | 26.40 | 47.57 | |||||||||||
1924 | 22.11 | 34.43 | 27.15 | 45.42 | 53.35 | 68.45 | 71.74 | 71.87 | 59.65 | 52.71 | 40.28 | 18.74 | 47.16 | |||||||||||||
1925 | 24.19 | 37.41 | 41.98 | 52.12 | 60.31 | 68.33 | 73.84 | 69.40 | 62.57 | 43.27 | a | 36.37 | 26.82 | 49.72 | ||||||||||||
1926 | 23.10 | 34.34 | 36.97 | 47.50 | 58.73 | 67.12 | 70.65 | 71.90 | 60.13 | 51.93 | a | 40.05 | 23.13 | a | 48.80 | |||||||||||
1927 | 30.13 | a | 33.20 | 34.29 | 47.28 | 60.08 | 65.43 | 71.66 | 66.50 | 59.97 | a | 51.95 | 41.58 | 20.63 | 48.56 | |||||||||||
1928 | 31.55 | a | 31.19 | 39.98 | 44.53 | 58.19 | 60.90 | 70.31 | 68.63 | 60.32 | 48.44 | 36.57 | a | 22.55 | a | 47.76 | ||||||||||
1929 | 24.89 | 19.11 | 37.95 | 44.88 | a | 55.73 | 67.30 | 73.32 | a | 72.90 | a | 57.90 | 50.08 | 24.53 | 30.48 | b | 46.59 | |||||||||
1930 | 11.11 | 37.93 | 35.89 | 54.35 | 54.82 | 68.35 | 73.92 | 70.34 | 61.10 | 47.29 | 37.14 | a | 25.37 | 48.13 | ||||||||||||
1931 | 30.82 | 35.87 | a | 35.15 | a | 47.40 | 55.05 | 70.73 | 75.29 | 71.47 | 66.33 | 52.67 | a | 33.93 | 27.77 | 50.21 | ||||||||||
1932 | 24.15 | a | 35.50 | 30.36 | b | 50.45 | 59.63 | 66.27 | 75.52 | 73.37 | 61.88 | 46.50 | 38.90 | a | 17.85 | 48.36 | ||||||||||
1933 | 30.05 | 25.00 | 40.92 | 44.48 | 56.03 | 72.92 | 75.61 | 69.84 | 65.77 | 54.06 | 41.75 | 39.31 | 51.31 | |||||||||||||
1934 | 35.98 | 33.52 | 42.65 | 50.43 | 64.16 | 69.82 | 77.32 | 73.71 | 59.30 | 55.55 | 41.65 | 32.95 | 53.09 | |||||||||||||
1935 | 33.26 | 34.59 | 41.74 | 46.70 | 50.79 | 67.10 | 73.87 | 72.58 | 61.20 | 49.85 | 34.40 | 31.16 | 49.77 | |||||||||||||
1936 | 29.56 | 21.69 | 39.60 | 49.87 | 61.19 | 71.02 | 77.73 | 73.50 | 63.12 | 48.42 | 38.50 | 30.02 | 50.35 | |||||||||||||
1937 | 11.64 | b | 28.86 | 35.52 | 46.87 | 58.11 | 65.45 | a | 74.68 | 76.23 | 65.92 | 51.45 | 37.17 | 26.81 | 48.22 | |||||||||||
1938 | 27.90 | 33.04 | 42.23 | 48.38 | 55.74 | 68.05 | 72.66 | 74.43 | a | 63.95 | 53.11 | 33.03 | 27.13 | a | 49.97 | |||||||||||
1939 | 29.48 | 21.96 | 38.31 | 47.64 | a | 60.82 | 67.25 | 75.72 | a | 71.13 | 65.40 | 51.26 | 39.38 | 35.24 | 50.30 | |||||||||||
1940 | 17.08 | 32.81 | 41.02 | 47.07 | a | 58.56 | 69.98 | 75.53 | 71.03 | 63.68 | b | 54.00 | 33.84 | a | 31.02 | a | 49.64 | |||||||||
1941 | 28.89 | 32.71 | 36.32 | 45.87 | 60.08 | a | 64.93 | 72.32 | 70.68 | 59.92 | 48.38 | a | 39.67 | 29.84 | 49.13 | |||||||||||
1942 | 20.82 | a | 18.00 | a | 34.27 | a | 50.93 | a | 55.77 | a | 64.17 | 72.18 | 69.90 | 60.33 | a | 49.82 | 39.90 | 33.15 | 47.44 | |||||||
1943 | 30.63 | 37.29 | 33.20 | a | 52.70 | 53.11 | 66.10 | 73.95 | 74.08 | 60.82 | 51.19 | 38.87 | 30.68 | 50.22 | ||||||||||||
1944 | 27.98 | 30.45 | 33.44 | 42.55 | 58.31 | 66.12 | 70.77 | 72.65 | 61.92 | 52.56 | 37.75 | b | 25.61 | 48.34 | ||||||||||||
1945 | 28.14 | c | 31.36 | 40.29 | 40.58 | 56.97 | 61.23 | 72.37 | 70.19 | 59.40 | 51.44 | 38.32 | b | 28.89 | 48.27 | |||||||||||
1946 | 30.63 | 34.98 | a | 45.77 | e | 55.09 | c | 53.53 | a | 67.18 | 74.17 | a | 70.84 | 61.67 | a | 47.74 | b | ----- | z | ----- | z | 54.16 | b | |||
1947 | 33.00 | h | 27.79 | 33.66 | 46.78 | 54.65 | a | 62.95 | b | 73.85 | 74.12 | a | ----- | z | ----- | z | 32.42 | q | 31.50 | b | 50.66 | d | ||||
1948 | 24.72 | b | 24.00 | b | 32.40 | f | 52.31 | c | 56.46 | d | 68.79 | b | ----- | z | ----- | z | 65.81 | q | 51.26 | 37.18 | 29.26 | 43.00 | d | |||
1949 | 15.74 | ----- | z | 39.68 | 50.78 | 58.11 | 65.67 | 72.63 | 71.77 | 62.90 | o | 48.84 | l | 46.75 | 30.35 | 50.17 | c | |||||||||
1950 | 26.98 | a | 37.05 | 38.97 | 48.37 | 53.62 | e | 66.71 | a | 69.55 | 68.92 | g | 60.67 | 54.25 | k | 37.47 | 34.18 | 47.36 | b | |||||||
1951 | 24.87 | 31.43 | 35.37 | 45.05 | 58.00 | k | 60.91 | b | 72.18 | 69.88 | f | 61.53 | a | 48.53 | 35.88 | b | 27.17 | g | 46.19 | c | ||||||
1952 | 30.71 | e | 31.15 | p | 34.12 | a | 47.34 | h | 58.00 | c | 72.78 | c | 73.68 | a | 72.78 | b | 66.36 | b | 53.69 | d | 31.75 | b | 30.43 | b | 52.43 | b |
1953 | 38.40 | f | 34.89 | e | 43.90 | f | 44.62 | 55.14 | b | 71.56 | e | 75.76 | 71.63 | d | 66.63 | c | 53.00 | e | 42.83 | c | 31.29 | b | 54.73 | b | ||
1954 | 34.48 | 44.05 | 35.67 | b | 55.37 | 57.79 | b | 70.60 | a | 79.02 | 73.81 | b | 65.72 | c | 51.58 | 41.53 | 33.95 | a | 53.63 | |||||||
1955 | 23.53 | b | 26.19 | d | 38.77 | 51.64 | a | 59.44 | e | 64.56 | c | 76.07 | c | 73.10 | 63.18 | b | 52.36 | b | 33.31 | c | 32.05 | b | 49.52 | |||
1956 | 32.15 | a | 25.16 | 39.77 | 47.64 | a | 61.05 | a | 73.10 | 73.71 | b | 69.15 | 63.17 | 52.00 | 36.05 | a | 33.95 | u | 52.09 | a | ||||||
1957 | ----- | z | 42.57 | u | ----- | z | ----- | z | ----- | z | 67.27 | 73.93 | a | 71.92 | 60.52 | 51.27 | a | 37.10 | 37.97 | 57.14 | e | |||||
1958 | 30.02 | 37.02 | 34.02 | a | 46.27 | 62.79 | 69.07 | 71.11 | 72.50 | 64.57 | 53.25 | a | 40.75 | 32.37 | 51.14 | |||||||||||
1959 | 27.63 | 27.27 | 37.44 | 50.12 | m | 57.06 | 70.80 | b | 72.37 | 72.32 | a | 60.78 | 47.58 | 37.70 | 34.40 | 49.58 | a | |||||||||
1960 | 25.79 | 25.52 | 38.19 | 52.45 | i | 58.11 | 69.17 | 72.98 | 72.61 | 63.78 | 51.76 | 38.45 | a | 25.48 | a | 49.26 | a | |||||||||
1961 | 29.15 | 35.81 | a | 39.71 | 47.75 | 58.35 | 66.85 | 71.58 | a | 71.37 | 57.08 | 50.60 | 35.28 | 26.18 | 49.14 | |||||||||||
1962 | 15.11 | 31.66 | 35.57 | a | 50.93 | 59.15 | 65.78 | a | 70.69 | 70.63 | 61.98 | 52.95 | 40.93 | 31.95 | 48.94 | |||||||||||
1963 | 17.23 | 37.50 | 36.89 | 49.92 | 60.55 | 68.50 | 74.60 | 69.35 | 65.58 | 56.26 | 39.52 | 26.81 | 50.22 | |||||||||||||
1964 | 30.40 | 27.64 | 34.31 | 46.80 | 59.70 | c | 66.26 | c | 75.26 | 68.80 | a | 61.26 | a | 51.52 | 38.05 | 30.82 | 49.23 | |||||||||
1965 | 32.52 | a | 26.11 | 28.40 | 50.68 | 57.15 | 64.50 | 71.47 | a | 68.84 | 54.88 | a | 53.48 | 42.02 | 30.44 | 48.37 | ||||||||||
1966 | 24.98 | 25.55 | 40.90 | 45.19 | a | 58.12 | b | 64.83 | 74.89 | 67.89 | 61.15 | 47.39 | 35.58 | 25.16 | 47.64 | |||||||||||
1967 | 28.94 | 33.07 | 41.98 | 48.12 | a | 52.18 | 60.77 | 70.23 | a | 67.11 | 59.97 | 50.87 | a | 35.78 | 21.21 | 47.52 | ||||||||||
1968 | 26.15 | a | 32.09 | b | 40.18 | c | 42.40 | 54.23 | a | 67.50 | b | 71.93 | a | 68.05 | 58.88 | 49.84 | 33.43 | 26.06 | 47.56 | |||||||
1969 | 30.61 | 32.61 | 31.56 | 50.98 | a | 57.90 | 61.47 | a | 73.40 | 72.85 | 62.97 | 38.66 | 36.91 | a | 29.40 | 48.28 | ||||||||||
1970 | 27.75 | a | 35.66 | 32.06 | 42.82 | 58.27 | a | 64.63 | 71.91 | b | 72.19 | b | 59.36 | a | 44.79 | b | 38.34 | a | 28.18 | 48.00 | ||||||
1971 | 27.18 | a | 29.29 | b | 36.21 | 45.55 | 53.39 | 67.86 | a | 70.12 | b | 70.68 | a | 56.36 | a | 49.02 | 37.05 | a | 29.11 | 47.65 | ||||||
1972 | 26.53 | 34.52 | a | 43.85 | 48.65 | 56.08 | 68.42 | 69.89 | 69.85 | 60.57 | 49.79 | 29.37 | 19.06 | 48.05 | ||||||||||||
1973 | 22.42 | 30.09 | 37.26 | 41.80 | 54.48 | ----- | z | 71.06 | 73.05 | 59.50 | 52.56 | 35.22 | 28.02 | 45.95 | a | |||||||||||
1974 | 18.35 | 34.75 | 42.35 | 46.27 | 61.21 | 67.53 | 73.73 | 67.66 | 58.30 | 53.07 | a | 37.62 | 29.48 | 49.19 | ||||||||||||
1975 | 33.55 | 32.32 | 40.54 | c | 44.16 | b | 55.54 | d | 64.07 | a | 71.87 | a | 69.53 | 58.10 | 50.98 | a | 31.78 | a | 31.90 | 48.69 | ||||||
1976 | 28.03 | 40.67 | 37.10 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.27 | i | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.57 | 31.33 | 37.42 | 47.46 | 57.36 | 67.09 | 73.21 | 71.18 | 61.61 | 50.49 | 37.19 | 28.78 | 49.05 | |||||||||||||
S.D. | 5.67 | 5.34 | 3.99 | 3.67 | 2.74 | 2.99 | 2.07 | 2.12 | 2.70 | 3.22 | 3.75 | 4.46 | 1.47 | |||||||||||||
SKEW | -0.95 | -0.39 | -0.33 | -0.07 | -0.05 | -0.20 | 0.48 | -0.14 | 0.01 | -1.22 | -0.63 | -0.38 | 1.10 | |||||||||||||
MAX | 35.98 | 44.05 | 45.77 | 55.37 | 64.16 | 73.10 | 79.02 | 76.23 | 66.63 | 56.26 | 46.75 | 39.31 | 53.63 | |||||||||||||
MIN | 11.11 | 18.00 | 27.15 | 37.22 | 50.79 | 60.77 | 69.55 | 66.50 | 54.88 | 38.66 | 24.53 | 17.85 | 46.59 | |||||||||||||
YRS | 54 | 54 | 54 | 52 | 55 | 56 | 56 | 54 | 54 | 54 | 55 | 54 | 43 |