YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 64.42 | s | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | 40.95 | b | ----- | z | 43.61 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.88 | e | 43.45 | a | 31.12 | f | 46.47 | h |
1912 | 38.96 | c | 39.00 | d | 41.72 | f | 49.02 | c | 61.45 | b | 66.00 | 69.02 | a | 68.58 | 60.42 | 51.40 | 42.50 | 30.21 | 52.41 | a | ||||||
1913 | 30.19 | b | 35.61 | 40.74 | 49.28 | a | 60.11 | 64.92 | 67.98 | 68.13 | 60.23 | b | 51.34 | 46.52 | 29.00 | 50.34 | ||||||||||
1914 | 37.98 | 38.93 | 41.95 | a | 51.67 | a | 58.55 | 66.98 | 67.63 | 67.65 | 63.82 | 51.73 | 45.84 | b | 31.30 | c | 52.00 | |||||||||
1915 | 30.55 | 37.09 | 36.68 | a | 48.95 | 55.71 | 66.98 | 70.02 | a | 66.47 | 62.67 | a | 53.13 | 44.10 | 37.12 | a | 50.79 | |||||||||
1916 | 35.61 | 41.39 | a | 49.89 | 50.67 | 57.87 | 69.60 | 69.11 | 67.60 | 67.40 | 54.82 | 40.75 | 33.60 | 53.19 | ||||||||||||
1917 | 33.78 | a | 37.07 | a | 40.23 | 48.30 | 52.45 | 68.40 | 75.17 | a | 69.42 | 62.97 | 53.27 | 46.12 | 43.60 | a | 52.56 | |||||||||
1918 | 30.63 | 40.59 | 48.40 | 51.82 | 60.48 | 73.20 | 72.11 | 68.45 | 61.88 | b | 54.11 | 36.63 | 29.77 | 52.34 | ||||||||||||
1919 | 28.65 | 36.39 | 41.83 | h | 52.64 | p | 57.79 | 61.72 | 68.13 | 69.52 | 63.18 | 52.90 | 40.80 | 38.85 | 51.79 | b | ||||||||||
1920 | 36.13 | 40.81 | 41.83 | a | 45.72 | 57.37 | 65.58 | 68.69 | 68.10 | 63.15 | 51.29 | 41.60 | 34.39 | 51.22 | ||||||||||||
1921 | 37.45 | 38.04 | a | 47.31 | 47.70 | 58.06 | 63.47 | 67.50 | 67.42 | 66.35 | 55.89 | 46.35 | 42.79 | 53.19 | ||||||||||||
1922 | 32.15 | 38.50 | a | 41.10 | 48.92 | 59.71 | b | 67.33 | 69.21 | 70.18 | 69.27 | 54.02 | 39.22 | 39.53 | 52.43 | |||||||||||
1923 | 39.21 | 35.80 | 39.52 | 50.45 | 59.84 | 67.93 | 70.23 | 66.72 | a | 60.67 | 49.32 | 40.20 | 32.48 | 51.03 | ||||||||||||
1924 | 33.45 | 38.69 | 37.95 | 49.90 | 58.21 | 70.75 | 69.32 | 69.69 | 63.05 | 54.39 | 45.82 | 31.31 | 51.88 | |||||||||||||
1925 | 31.24 | 40.94 | b | 45.59 | b | 54.68 | b | 60.62 | b | 66.93 | a | 69.45 | 66.05 | b | 62.32 | 52.34 | 42.07 | 33.31 | 52.13 | |||||||
1926 | 27.26 | 40.73 | 38.95 | 46.05 | 54.98 | 63.35 | 65.92 | 66.63 | 64.02 | 55.29 | 42.53 | 32.52 | 49.85 | |||||||||||||
1927 | 39.55 | 40.18 | 41.63 | 50.87 | 59.95 | 65.82 | 70.15 | 67.34 | 60.72 | 53.10 | 48.83 | 31.56 | 52.47 | |||||||||||||
1928 | 37.03 | 36.90 | 44.48 | 46.88 | ----- | z | 64.07 | a | 66.73 | 65.18 | 58.63 | 53.00 | 39.90 | 30.79 | 49.42 | a | ||||||||||
1929 | 34.10 | 30.98 | 41.60 | 50.52 | 57.81 | 66.63 | 69.77 | 67.58 | 63.62 | 50.58 | 34.95 | b | 34.87 | 50.25 | ||||||||||||
1930 | 28.02 | 41.59 | 37.92 | 51.28 | 54.84 | 67.05 | 68.05 | 66.81 | 60.20 | 53.03 | 38.82 | 29.63 | 49.77 | |||||||||||||
1931 | 30.55 | 35.00 | 40.76 | 50.32 | 57.60 | 70.12 | 71.35 | 67.92 | 68.53 | 57.73 | 42.43 | 31.95 | 52.02 | |||||||||||||
1932 | 29.19 | d | 40.10 | 37.50 | 47.60 | 55.58 | a | 62.83 | 67.19 | 66.98 | 59.15 | 51.61 | 43.58 | 30.27 | 49.30 | |||||||||||
1933 | 35.32 | 29.88 | 43.07 | a | 43.60 | 52.77 | a | 62.40 | 68.55 | a | 64.30 | a | 62.97 | 55.85 | 44.67 | 41.00 | 50.36 | |||||||||
1934 | 33.28 | a | 43.89 | 46.15 | 51.92 | 62.82 | 70.47 | 73.94 | 72.81 | 60.25 | 54.94 | 45.22 | 35.35 | 54.25 | ||||||||||||
1935 | 37.24 | 32.59 | 41.29 | 48.45 | 49.63 | 59.23 | 63.68 | 68.44 | 65.82 | b | 59.21 | b | 46.55 | a | 33.85 | a | 50.50 | |||||||||
1936 | 36.97 | 38.90 | 49.69 | 57.43 | b | 64.37 | 69.43 | 70.61 | 68.73 | 62.67 | 51.90 | 43.14 | a | 37.97 | a | 54.32 | ||||||||||
1937 | 31.10 | b | 36.45 | 37.81 | 49.62 | 59.78 | b | 67.73 | 73.24 | b | 75.56 | 66.23 | 53.95 | 42.08 | 34.89 | 52.37 | ||||||||||
1938 | 35.89 | 40.16 | 45.37 | 52.55 | 60.79 | 70.38 | 65.71 | 67.56 | 60.30 | 52.32 | 39.33 | 37.45 | 52.32 | |||||||||||||
1939 | 32.06 | 29.20 | 44.13 | 50.52 | 58.76 | 67.93 | 68.39 | 66.34 | 62.62 | 51.79 | 38.85 | 38.21 | 50.73 | |||||||||||||
1940 | 33.08 | 34.97 | 45.03 | 50.68 | 59.29 | 65.80 | 69.79 | 66.84 | 62.85 | 54.44 | 39.48 | 38.23 | 51.71 | |||||||||||||
1941 | 39.40 | 40.93 | 39.37 | 45.95 | 58.77 | a | 64.65 | 67.65 | 70.10 | 63.55 | 53.15 | 42.57 | 38.45 | a | 52.04 | |||||||||||
1942 | 37.31 | 35.41 | a | 41.65 | 53.13 | 58.79 | 67.07 | 72.98 | a | 68.37 | 61.37 | 51.53 | 44.12 | 39.68 | 52.62 | |||||||||||
1943 | 35.90 | 41.66 | 44.45 | 56.10 | 63.50 | 67.92 | 70.69 | 71.15 | 61.78 | 54.29 | 42.78 | 28.98 | 53.27 | |||||||||||||
1944 | 29.88 | a | 41.93 | a | 43.44 | 48.12 | 55.34 | 65.42 | 71.53 | 70.27 | 63.57 | g | 53.92 | 42.25 | 35.14 | f | 52.21 | b | ||||||||
1945 | 35.35 | a | 39.96 | 43.63 | 48.88 | a | 60.37 | 66.92 | 66.80 | a | 66.23 | 63.60 | 54.34 | c | 51.33 | a | 33.26 | 52.56 | ||||||||
1946 | 25.42 | 33.59 | a | 42.10 | 53.00 | 55.68 | 68.75 | 69.21 | 68.21 | 64.18 | 53.97 | a | 40.35 | 41.62 | g | 52.22 | a | |||||||||
1947 | 34.21 | 38.55 | 40.85 | a | 49.60 | a | 60.80 | c | 67.08 | 72.11 | 71.58 | 67.25 | 54.58 | 38.07 | a | 31.95 | 52.22 | |||||||||
1948 | 30.52 | 34.93 | a | 36.89 | 54.23 | 60.00 | a | 66.30 | 69.94 | 69.03 | 63.81 | a | 50.95 | a | 36.10 | a | 37.71 | b | 50.87 | |||||||
1949 | 23.98 | 34.52 | 42.29 | 48.62 | b | 58.10 | 66.53 | 69.24 | 65.84 | 62.94 | c | ----- | z | ----- | z | 35.16 | 50.72 | b | ||||||||
1950 | 39.87 | 45.05 | 46.94 | 54.13 | 59.40 | 70.33 | a | 69.66 | 68.77 | 63.32 | 62.55 | ----- | z | ----- | z | 58.00 | b | |||||||||
1951 | 31.79 | 36.40 | w | 43.23 | 47.55 | a | 59.27 | a | 67.03 | 73.61 | 69.68 | 65.12 | d | 54.58 | 40.78 | 36.56 | 53.56 | a | ||||||||
1952 | 38.60 | 37.24 | 38.73 | 48.57 | 58.92 | 70.03 | 70.41 | b | 70.55 | 62.48 | 54.53 | 36.55 | 33.08 | 51.64 | ||||||||||||
1953 | 40.76 | 34.79 | 44.57 | a | 49.11 | b | 54.69 | 69.53 | 70.61 | 68.73 | 64.72 | a | 52.32 | 44.86 | a | 31.50 | 52.18 | |||||||||
1954 | 37.56 | 41.91 | 42.20 | a | 55.50 | 59.16 | 67.42 | 71.11 | 68.05 | 65.27 | 54.73 | 43.78 | a | 34.47 | 53.43 | |||||||||||
1955 | 30.97 | 34.32 | 43.00 | a | 50.53 | a | 57.26 | 64.02 | 66.95 | 66.21 | 63.62 | 54.34 | 42.27 | 37.08 | 50.88 | |||||||||||
1956 | 37.53 | 28.84 | 43.57 | a | 47.48 | 60.18 | 69.13 | 68.56 | 67.06 | 66.03 | 53.62 | a | 38.72 | 34.24 | 51.25 | |||||||||||
1957 | 37.83 | a | 44.30 | 41.69 | 47.31 | a | 54.53 | 67.02 | a | 70.35 | a | 67.37 | a | 59.95 | 49.48 | 34.47 | a | 35.73 | a | 50.84 | ||||||
1958 | 29.45 | b | 38.25 | 35.88 | b | 45.17 | 59.60 | a | 67.70 | 71.00 | 68.16 | 59.67 | 50.67 | a | 42.08 | 37.57 | a | 50.43 | ||||||||
1959 | 35.26 | 35.52 | a | 41.95 | 49.66 | b | 59.71 | 67.55 | 68.19 | 67.32 | 61.86 | a | 51.52 | a | 39.65 | c | 32.81 | d | 50.92 | |||||||
1960 | 29.15 | 30.04 | a | 43.18 | 50.88 | 57.40 | a | 68.54 | e | 67.70 | a | 69.52 | 63.15 | c | 51.10 | f | 42.73 | d | 29.02 | 50.12 | a | |||||
1961 | 31.08 | 37.12 | 42.76 | b | 49.24 | a | 59.91 | b | 65.79 | a | 68.21 | 65.11 | d | 58.75 | d | 53.34 | 36.43 | 32.88 | a | 50.05 | ||||||
1962 | 29.26 | 40.21 | 38.72 | m | 51.28 | 58.78 | a | 64.45 | 65.24 | b | 67.24 | b | 58.40 | e | 49.82 | 37.46 | c | 31.02 | a | 50.29 | a | |||||
1963 | 23.45 | a | 34.19 | d | 36.78 | d | 49.32 | 57.18 | c | 66.14 | a | 71.61 | 66.89 | 62.37 | 54.13 | 40.17 | a | 30.81 | 49.42 | |||||||
1964 | 26.16 | 25.47 | 37.69 | 46.43 | 57.25 | a | 65.65 | 70.84 | 68.82 | 61.91 | a | 53.94 | 38.97 | 33.10 | 48.85 | |||||||||||
1965 | 35.40 | a | 33.50 | 36.10 | 49.85 | 55.45 | a | 62.05 | 68.67 | a | 66.50 | ----- | z | 52.31 | 46.33 | 36.13 | 49.30 | a | ||||||||
1966 | 27.97 | 31.91 | a | 43.81 | 50.00 | a | 58.08 | a | 64.53 | a | 71.11 | ----- | z | ----- | z | 51.37 | 45.43 | 32.50 | c | 47.67 | b | |||||
1967 | 36.90 | 39.96 | 51.11 | ----- | z | 59.13 | l | 63.59 | a | 70.60 | 65.34 | 60.47 | 53.06 | 42.98 | 28.40 | 51.24 | b | |||||||||
1968 | ----- | z | 37.98 | e | 39.08 | 45.09 | h | 54.77 | 67.55 | 66.03 | 64.18 | 59.52 | 51.77 | 38.87 | 31.87 | a | 51.16 | b | ||||||||
1969 | 39.74 | 34.82 | 34.07 | a | 50.85 | 57.02 | 64.45 | 70.08 | 68.81 | 61.23 | 48.03 | 38.18 | 34.68 | 50.16 | ||||||||||||
1970 | 31.52 | 38.09 | 36.85 | 46.67 | 57.95 | 62.71 | a | 68.77 | 67.26 | 61.32 | 47.48 | 42.27 | 36.84 | 49.81 | ||||||||||||
1971 | 34.40 | 34.93 | 43.52 | 48.10 | 55.00 | 65.08 | 68.90 | 64.11 | 58.95 | 49.73 | 40.60 | 32.45 | 49.65 | |||||||||||||
1972 | 35.37 | a | 39.88 | 47.48 | 55.56 | l | 57.47 | a | 66.80 | 69.69 | b | 66.52 | a | 62.21 | a | 53.53 | a | 36.52 | a | 31.72 | a | 51.56 | a | |||
1973 | 31.37 | a | ----- | z | 40.76 | h | 42.52 | h | 54.00 | d | 65.46 | b | 69.06 | 68.66 | 62.30 | 55.10 | b | 47.05 | a | 37.37 | 54.49 | c | ||||
1974 | 35.27 | 36.61 | a | 47.83 | b | 49.04 | b | 62.70 | c | ----- | z | 68.83 | a | 66.23 | 59.50 | 52.56 | ----- | z | ----- | z | 53.17 | c | ||||
1975 | 38.23 | t | 33.27 | 40.94 | 46.79 | d | 53.77 | 63.82 | 66.34 | 67.98 | g | 58.91 | h | 50.50 | 39.37 | g | 35.95 | l | 50.77 | e | ||||||
1976 | 34.25 | m | 40.96 | e | 40.60 | 49.55 | 55.85 | a | 64.83 | 65.90 | b | 64.92 | 58.65 | 44.55 | 35.98 | b | 31.87 | 50.33 | a | |||||||
1977 | 31.88 | a | 33.45 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.66 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.56 | 37.10 | 42.07 | 49.77 | 58.00 | 66.48 | 69.31 | 67.87 | 62.54 | 53.01 | 41.66 | 34.24 | 51.44 | |||||||||||||
S.D. | 4.27 | 3.99 | 3.72 | 2.71 | 2.75 | 2.56 | 2.19 | 2.04 | 2.50 | 2.69 | 3.58 | 3.53 | 1.33 | |||||||||||||
SKEW | -0.29 | -0.49 | 0.22 | 0.53 | -0.37 | -0.12 | 0.13 | 0.91 | 0.51 | 0.24 | 0.15 | 0.54 | 0.14 | |||||||||||||
MAX | 40.95 | 45.05 | 51.11 | 57.43 | 64.37 | 73.20 | 75.17 | 75.56 | 69.27 | 62.55 | 51.33 | 43.60 | 54.32 | |||||||||||||
MIN | 23.45 | 25.47 | 34.07 | 43.60 | 49.63 | 59.23 | 63.68 | 64.11 | 58.40 | 44.55 | 34.47 | 28.40 | 48.85 | |||||||||||||
YRS | 64 | 64 | 62 | 60 | 63 | 64 | 65 | 63 | 61 | 64 | 62 | 60 | 46 |