YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1911 | ----- | z | ----- | z | ----- | z | 44.59 | h | 48.84 | 60.07 | b | 67.76 | 62.88 | b | 53.26 | a | 45.62 | a | 39.77 | b | 32.17 | a | 51.29 | d | ||
1912 | 31.92 | a | 36.46 | a | 34.66 | c | 43.09 | a | 52.83 | p | 58.90 | 62.63 | 60.63 | 52.93 | 42.98 | c | 45.04 | e | 37.72 | d | 46.09 | a | ||||
1913 | 36.86 | f | 37.42 | b | 44.38 | g | 55.64 | l | ----- | z | ----- | z | ----- | z | 60.21 | g | 51.23 | j | 43.40 | 39.84 | a | 27.76 | b | 37.11 | h | |
1914 | 36.72 | a | 34.04 | c | 41.53 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 39.93 | 26.57 | b | 35.76 | g | ||
1915 | 29.71 | 37.96 | e | ----- | z | 48.29 | b | 49.42 | 56.68 | 62.82 | 68.71 | 54.10 | 49.47 | 36.90 | 33.45 | 47.96 | a | |||||||||
1916 | 16.84 | 35.72 | 41.05 | 45.12 | 46.23 | 55.15 | 59.03 | 63.11 | 54.35 | 43.68 | 32.58 | 28.34 | 43.43 | |||||||||||||
1917 | 28.92 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.92 | k | |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.57 | a | 58.48 | 46.61 | 38.92 | 32.06 | 48.53 | g | ||||
1931 | 37.37 | 37.52 | 43.32 | 49.29 | a | 57.85 | 59.55 | 68.29 | 66.23 | 57.76 | m | 50.06 | 36.80 | 33.15 | 49.04 | a | ||||||||||
1932 | 34.02 | a | 36.22 | 43.40 | 47.70 | 52.94 | 61.93 | 63.30 | a | 63.25 | a | 59.02 | 51.34 | 44.67 | 27.84 | 48.80 | ||||||||||
1933 | 33.85 | 33.41 | a | 41.00 | 46.52 | 47.87 | 60.97 | 67.71 | 66.19 | 55.77 | 54.77 | 43.42 | 42.19 | 49.47 | ||||||||||||
1934 | 41.23 | 42.02 | 49.92 | 54.85 | 58.24 | 59.50 | a | 66.06 | 67.87 | 58.03 | 52.35 | 43.27 | 34.87 | 52.35 | ||||||||||||
1935 | 33.27 | 38.00 | 37.26 | b | 44.48 | 51.92 | 59.88 | 65.26 | 64.66 | 61.67 | 48.34 | 36.12 | 31.63 | 47.71 | ||||||||||||
1936 | 34.65 | 28.14 | 40.74 | 50.57 | 56.45 | 61.65 | 66.45 | a | 66.02 | 57.88 | 52.63 | 38.65 | 36.82 | 49.22 | ||||||||||||
1937 | 18.69 | 35.12 | 43.03 | 45.45 | 54.03 | 60.20 | 67.47 | 63.18 | 59.02 | 52.29 | 42.02 | 37.98 | 48.21 | |||||||||||||
1938 | 34.68 | 33.79 | 39.89 | 47.63 | 53.16 | 61.90 | 69.24 | 62.44 | 61.55 | 48.10 | 34.48 | 33.89 | 48.39 | |||||||||||||
1939 | 35.84 | 32.46 | 43.61 | 49.90 | 55.82 | a | 56.57 | c | 69.30 | f | 65.60 | b | 59.13 | 49.97 | 42.27 | 39.93 | a | 48.28 | a | |||||||
1940 | ----- | z | 38.88 | 44.87 | 47.32 | 55.30 | a | 61.73 | 65.29 | 64.58 | 57.90 | 50.83 | a | 36.38 | 34.19 | 50.66 | a | |||||||||
1941 | 34.44 | 38.96 | 43.00 | 47.53 | 52.65 | 57.22 | a | 66.89 | 63.47 | 53.76 | a | 46.80 | a | 42.91 | a | 34.05 | 48.47 | |||||||||
1942 | 23.15 | 35.29 | 40.56 | 47.77 | 50.76 | 56.22 | 66.76 | 65.76 | 58.95 | b | 51.57 | a | 39.31 | a | 37.63 | 47.81 | ||||||||||
1943 | 27.88 | a | 38.09 | 39.44 | 48.35 | 49.32 | 55.00 | 65.53 | a | 62.02 | c | 62.85 | 49.87 | 39.50 | 32.17 | a | 47.50 | |||||||||
1944 | 31.65 | a | 34.67 | 40.16 | 45.08 | 53.33 | b | 57.17 | 66.48 | 63.52 | 61.38 | 54.50 | f | 38.00 | 30.71 | 47.47 | a | |||||||||
1945 | 34.73 | 36.95 | 38.37 | 44.15 | 52.81 | 57.15 | 66.26 | 65.27 | 56.78 | 51.23 | 40.70 | 35.81 | 48.35 | |||||||||||||
1946 | 36.65 | 37.96 | 41.34 | 46.85 | 53.88 | a | 56.85 | 64.84 | 64.84 | 55.85 | 43.87 | 37.07 | 37.13 | 48.09 | ||||||||||||
1947 | 31.58 | 40.57 | 44.15 | 47.70 | 57.27 | 56.83 | 64.18 | 61.47 | 59.42 | 50.98 | 39.77 | 37.34 | 49.27 | |||||||||||||
1948 | 34.15 | 34.07 | b | 37.43 | b | 42.96 | b | 49.60 | 60.75 | 61.90 | 61.39 | 55.08 | 47.89 | 38.42 | 28.32 | a | 46.00 | |||||||||
1949 | 19.29 | 34.34 | 38.90 | 49.17 | 55.76 | 58.10 | 63.21 | 61.77 | 57.95 | 45.47 | 45.10 | 34.11 | 46.93 | |||||||||||||
1950 | 22.44 | 38.17 | a | 39.44 | 43.88 | 51.00 | 58.48 | 64.48 | 65.05 | 58.20 | 49.89 | 43.37 | 41.24 | 47.97 | ||||||||||||
1951 | 31.52 | 37.55 | 37.52 | 46.72 | 51.82 | ----- | z | ----- | z | ----- | z | 59.14 | a | 47.21 | 39.27 | 29.81 | 42.28 | c | ||||||||
1952 | 29.74 | 36.67 | 38.16 | 48.41 | a | 52.61 | 56.35 | 66.10 | b | 63.77 | a | 59.45 | 52.21 | 32.42 | 31.89 | 47.32 | ||||||||||
1953 | 41.31 | 37.18 | 40.42 | 43.88 | 48.85 | 52.85 | 64.27 | 62.31 | 59.62 | 48.71 | 43.83 | 36.82 | 48.34 | |||||||||||||
1954 | 33.07 | a | 40.29 | 36.55 | 46.48 | 53.63 | 54.98 | 63.48 | 58.53 | 54.40 | 45.63 | 43.57 | 33.53 | a | 47.01 | |||||||||||
1955 | 31.85 | 33.09 | 35.68 | 40.67 | 48.85 | 58.75 | 62.00 | 62.21 | 56.53 | 49.53 | a | 36.37 | 32.56 | 45.68 | ||||||||||||
1956 | 34.40 | 31.03 | 40.00 | 46.12 | 53.86 | b | 54.93 | a | 66.63 | 62.86 | b | 56.73 | 46.53 | 36.53 | 36.90 | a | 47.21 | |||||||||
1957 | 19.82 | 36.21 | 41.02 | 45.98 | 54.16 | 60.70 | 62.79 | 59.87 | 58.97 | 45.23 | a | 37.18 | 38.61 | 46.71 | ||||||||||||
1958 | 35.73 | 43.71 | 37.66 | 44.48 | 58.03 | 60.72 | 67.65 | 67.73 | 57.00 | a | 50.63 | 40.85 | 40.53 | 50.39 | ||||||||||||
1959 | 36.16 | 34.61 | 41.56 | 46.47 | 48.39 | 60.18 | 67.47 | 62.18 | a | 55.00 | b | 50.02 | 40.13 | 33.63 | 47.98 | |||||||||||
1960 | 28.15 | 34.28 | 41.90 | 46.70 | 49.85 | 61.08 | 68.92 | 62.35 | 58.32 | 50.19 | 38.83 | a | 34.24 | 47.90 | ||||||||||||
1961 | 35.87 | p | 41.61 | 41.52 | 45.82 | 51.53 | 65.10 | 67.79 | 69.13 | 54.19 | a | 48.42 | a | ----- | z | 33.15 | e | 51.83 | b | |||||||
1962 | 30.95 | 36.29 | 38.89 | 49.43 | 48.37 | 56.10 | 61.95 | a | 61.58 | 58.68 | b | 47.98 | 42.20 | 37.37 | 47.48 | |||||||||||
1963 | 27.61 | c | 43.41 | 40.42 | 42.42 | 51.72 | a | 56.42 | 59.65 | d | 61.74 | 59.77 | j | 50.80 | i | 40.85 | m | 33.71 | e | 46.34 | c | |||||
1964 | 34.55 | a | 36.38 | a | 36.65 | a | 41.81 | d | 48.47 | b | 57.62 | 63.87 | 61.16 | c | 54.48 | b | 48.84 | b | 36.29 | b | 31.57 | a | 45.97 | |||
1965 | 34.57 | a | 39.20 | 38.79 | 46.52 | 49.32 | 57.73 | 65.14 | c | 63.23 | a | 53.52 | b | 53.71 | e | 42.25 | 34.71 | 48.22 | ||||||||
1966 | 36.31 | 36.42 | c | 41.69 | b | 46.42 | 53.71 | 57.80 | 62.26 | 63.42 | 59.34 | a | 50.66 | c | 41.93 | a | 36.58 | f | 50.00 | a | ||||||
1967 | 37.27 | e | 40.48 | c | 39.05 | b | 40.07 | b | 51.30 | a | 59.78 | a | 65.98 | c | 68.05 | a | 61.67 | 50.73 | c | 39.74 | a | 30.43 | d | 48.71 | ||
1968 | 33.53 | a | 39.65 | b | 42.67 | a | 43.52 | a | 52.23 | c | 59.57 | b | 65.83 | b | 62.28 | a | 57.66 | e | 48.33 | d | 40.37 | d | 31.35 | d | 48.08 | |
1969 | 27.11 | c | 32.26 | c | 40.39 | 44.46 | c | 55.73 | 61.95 | 63.83 | b | 62.92 | 58.65 | d | 44.24 | 40.63 | 33.73 | 47.16 | ||||||||
1970 | 33.39 | 37.70 | 38.98 | a | 40.37 | 52.45 | 62.32 | h | 67.02 | 66.03 | 52.57 | a | 46.16 | 39.13 | 32.45 | 46.02 | a | |||||||||
1971 | 34.68 | 36.48 | 37.16 | 43.32 | 52.44 | 55.92 | 67.53 | 68.89 | d | 53.90 | 44.48 | 39.10 | 32.40 | 47.19 | ||||||||||||
1972 | 31.53 | 37.22 | 43.19 | 40.78 | 53.40 | 60.00 | 66.84 | 66.29 | 53.55 | 45.68 | 39.98 | 25.74 | 47.02 | |||||||||||||
1973 | 29.55 | 37.05 | 38.63 | 44.84 | a | 54.32 | 59.82 | 66.28 | a | 64.76 | b | 57.85 | 48.19 | 37.83 | 38.90 | 48.17 | ||||||||||
1974 | 26.98 | 37.46 | 38.75 | e | 43.85 | 48.98 | 63.68 | 65.09 | c | 66.40 | b | 60.50 | 48.93 | a | 40.52 | c | 35.13 | a | 48.02 | |||||||
1975 | 35.40 | 34.05 | 36.80 | d | 39.67 | 50.32 | 57.17 | a | 68.31 | 62.10 | b | 57.32 | e | 49.02 | a | 37.88 | 36.58 | a | 47.05 | |||||||
1976 | 35.90 | 35.98 | 38.60 | 42.67 | a | 52.27 | 55.08 | 65.98 | f | 61.65 | a | 59.90 | a | 49.62 | a | 42.91 | a | 35.94 | 46.41 | a | ||||||
1977 | 28.97 | 38.11 | 37.69 | b | 48.07 | a | 47.15 | 63.18 | 64.60 | f | ----- | z | 55.50 | 48.50 | 37.75 | 36.67 | b | 44.16 | b | |||||||
1978 | 34.95 | 39.14 | 44.77 | 44.37 | 48.71 | 59.70 | 66.74 | f | 63.47 | a | 55.07 | 49.70 | c | 33.41 | b | 28.20 | c | 45.59 | a | |||||||
1979 | 17.26 | d | 34.54 | 41.68 | c | 44.36 | b | 53.63 | a | 60.02 | 65.50 | l | 64.40 | f | 61.14 | b | 51.98 | c | 36.05 | b | 37.23 | a | 43.79 | b | ||
1980 | 29.21 | 39.37 | j | 39.86 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 29.21 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.42 | 36.75 | 40.27 | 45.62 | 52.13 | 58.74 | 65.29 | 63.95 | 57.38 | 48.70 | 39.48 | 34.05 | 47.83 | |||||||||||||
S.D. | 5.68 | 2.95 | 2.77 | 2.96 | 2.96 | 2.59 | 2.36 | 2.44 | 2.66 | 2.79 | 3.06 | 3.75 | 1.43 | |||||||||||||
SKEW | -1.00 | -0.07 | 0.70 | 0.23 | 0.18 | 0.10 | -0.61 | 0.34 | -0.05 | -0.22 | -0.21 | -0.11 | 0.10 | |||||||||||||
MAX | 41.31 | 43.71 | 49.92 | 54.85 | 58.24 | 65.10 | 69.24 | 69.13 | 62.85 | 54.77 | 45.10 | 42.19 | 52.35 | |||||||||||||
MIN | 16.84 | 28.14 | 34.66 | 39.67 | 46.23 | 52.85 | 59.03 | 58.53 | 52.57 | 42.98 | 32.42 | 25.74 | 43.43 | |||||||||||||
YRS | 53 | 54 | 52 | 52 | 52 | 51 | 47 | 51 | 52 | 53 | 54 | 55 | 37 |