YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | 40.88 | n | 40.71 | 47.31 | 52.75 | 60.50 | 67.83 | 70.92 | l | ----- | z | 69.83 | u | 54.95 | a | 49.12 | a | 37.02 | b | 51.27 | d | |||||
1915 | 39.37 | e | 43.59 | a | ----- | z | ----- | z | ----- | z | 64.54 | d | 69.26 | 68.87 | 61.41 | a | 55.76 | 45.50 | a | 36.29 | 53.84 | c | ||||
1916 | 35.92 | a | 45.30 | a | 48.95 | 51.53 | 55.26 | 63.90 | a | 69.86 | b | 68.72 | a | 63.22 | c | 51.88 | c | 42.40 | 34.19 | 52.59 | ||||||
1917 | 33.37 | a | 37.31 | b | 39.63 | 47.43 | a | 51.26 | 61.88 | n | 69.70 | c | 64.68 | a | 63.66 | a | 55.50 | b | 46.38 | a | 42.67 | a | 50.14 | a | ||
1918 | 34.52 | a | 39.84 | 44.75 | a | 48.13 | 51.34 | 67.65 | j | 69.82 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.07 | f | ||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.58 | 49.22 | 44.76 | 52.52 | i | |||
1936 | 44.68 | 43.98 | 52.00 | 61.08 | 68.55 | 78.07 | 79.65 | 77.85 | 70.78 | 62.61 | 50.73 | 43.85 | 61.15 | |||||||||||||
1937 | 32.32 | 44.14 | 48.74 | 57.77 | 67.48 | 73.73 | 78.68 | 80.34 | 74.63 | 66.31 | 54.98 | b | 44.92 | 60.34 | ||||||||||||
1938 | 45.21 | c | 44.77 | b | 48.58 | 57.46 | d | 65.25 | c | 76.03 | 77.69 | 77.63 | 75.30 | 64.58 | 48.25 | 47.02 | 60.65 | |||||||||
1939 | 41.52 | 35.67 | a | 51.31 | 59.42 | 66.89 | 74.95 | 79.29 | 76.05 | 70.52 | f | 61.60 | 53.12 | 49.48 | a | 59.03 | a | |||||||||
1940 | 43.84 | 45.83 | 54.10 | 58.38 | 69.87 | 78.17 | 81.61 | 77.19 | 72.10 | 63.03 | 49.03 | 46.85 | a | 61.67 | ||||||||||||
1941 | 43.47 | 46.79 | 48.74 | 50.23 | 63.52 | 70.05 | 76.11 | 75.37 | 69.75 | 56.74 | 52.58 | 42.94 | 58.02 | |||||||||||||
1942 | 44.56 | 41.93 | 47.56 | 54.58 | 62.69 | 74.18 | 79.92 | 76.47 | 74.18 | 62.37 | 55.92 | 47.26 | 60.14 | |||||||||||||
1943 | 44.26 | b | 49.38 | 51.97 | 62.66 | a | 68.62 | j | 73.48 | i | 79.90 | 75.74 | 74.37 | 60.69 | 53.42 | 43.65 | 59.60 | b | ||||||||
1944 | 42.56 | 41.66 | 46.28 | a | 52.86 | a | 63.55 | 69.25 | 77.56 | 78.71 | 71.52 | 65.40 | 47.18 | 45.57 | a | 58.51 | ||||||||||
1945 | 42.95 | 46.68 | c | 44.61 | d | 54.13 | 63.63 | 70.42 | 77.81 | 77.61 | 73.17 | 63.77 | 52.47 | a | 42.71 | 59.16 | ||||||||||
1946 | 40.29 | 45.45 | 51.05 | 62.45 | 64.45 | 79.00 | 79.26 | 75.92 | 72.22 | a | 57.29 | 47.45 | 49.13 | 60.33 | ||||||||||||
1947 | 40.29 | 51.30 | 53.21 | 57.57 | 68.13 | 72.48 | 80.98 | 75.92 | 76.42 | 64.10 | 46.10 | 41.21 | 60.64 | |||||||||||||
1948 | 45.65 | 42.66 | 44.55 | 59.45 | 66.81 | 73.93 | 78.55 | 78.15 | 74.93 | a | 62.79 | 46.48 | 43.04 | f | 61.27 | a | ||||||||||
1949 | 32.43 | a | 41.38 | 48.08 | 58.88 | 64.11 | 72.38 | 76.42 | 77.10 | 74.63 | 57.87 | 57.67 | 41.34 | 58.52 | ||||||||||||
1950 | 41.84 | 49.77 | 50.93 | a | 60.63 | 63.84 | 74.25 | 76.50 | g | 77.87 | 69.50 | 70.19 | 56.13 | 50.97 | 60.54 | a | ||||||||||
1951 | 42.42 | 44.55 | 48.48 | 54.38 | 62.76 | 71.38 | 79.31 | b | 74.48 | 73.22 | 61.89 | 48.35 | 41.47 | 58.56 | ||||||||||||
1952 | 42.08 | 43.02 | 41.44 | 54.75 | 66.02 | 72.02 | 76.40 | 76.89 | 74.78 | 69.73 | 45.72 | 41.50 | 58.69 | |||||||||||||
1953 | 47.47 | 44.54 | 49.60 | 54.52 | 57.42 | 74.38 | a | 76.69 | 74.35 | 75.42 | 63.02 | 53.95 | 41.06 | 59.37 | ||||||||||||
1954 | 45.39 | 51.46 | 47.26 | 61.67 | 65.47 | a | 72.05 | 77.27 | 72.95 | 72.95 | a | 65.63 | 56.13 | 45.95 | 61.18 | |||||||||||
1955 | 38.15 | 40.02 | 50.13 | 55.20 | c | 63.67 | a | 71.98 | 74.74 | 73.27 | 73.45 | 67.85 | d | 49.50 | e | 47.97 | 58.83 | |||||||||
1956 | 47.68 | 39.79 | 53.23 | 54.83 | 66.60 | 77.25 | 76.63 | 75.76 | 77.67 | 63.02 | a | 49.48 | 44.55 | 60.54 | ||||||||||||
1957 | 42.73 | 52.30 | 49.08 | 53.80 | 59.68 | 74.35 | 78.29 | 73.82 | a | 73.52 | a | 58.18 | 45.88 | 47.13 | 59.06 | |||||||||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | 46.35 | 43.21 | 51.34 | 61.05 | 63.42 | 78.27 | 79.47 | a | 72.66 | 71.10 | 61.81 | 50.23 | 44.45 | c | 60.28 | |||||||||||
1960 | 37.75 | a | 39.24 | 54.29 | c | 59.07 | c | 63.68 | c | 77.93 | 78.73 | 75.80 | a | 74.02 | 59.24 | 51.85 | 42.32 | 59.49 | ||||||||
1961 | 44.73 | 46.79 | 48.35 | 57.70 | b | 64.68 | c | 77.30 | 77.66 | 75.13 | 68.59 | a | 60.92 | a | 48.78 | 42.76 | d | 59.45 | ||||||||
1962 | 41.33 | b | 46.27 | 44.56 | 61.60 | 62.63 | a | 72.43 | 77.68 | 80.42 | 73.07 | 62.79 | 55.55 | b | 46.40 | 60.39 | ||||||||||
1963 | 40.55 | 50.30 | 48.97 | 54.52 | b | 67.53 | 70.27 | 79.77 | a | 72.39 | 71.90 | 64.85 | 49.98 | a | 45.11 | 59.68 | ||||||||||
1964 | 39.95 | 40.19 | 44.53 | 52.95 | 63.10 | 70.93 | ----- | z | 73.05 | a | 69.28 | 66.11 | 46.45 | 41.94 | e | 55.32 | a | |||||||||
1965 | 44.18 | a | 43.19 | a | 46.56 | e | 54.83 | 61.47 | a | 69.13 | 77.76 | 77.48 | 69.83 | 65.95 | 54.72 | 43.36 | c | 59.04 | ||||||||
1966 | 40.23 | 40.52 | 52.26 | 59.75 | 67.55 | 73.80 | 78.94 | 76.74 | 71.70 | 61.05 | 53.98 | 42.13 | 59.89 | |||||||||||||
1967 | 42.84 | 47.86 | 51.19 | 50.29 | b | 63.44 | 70.12 | a | 76.24 | 76.02 | 71.70 | 65.57 | a | 54.33 | 37.48 | 58.92 | ||||||||||
1968 | 42.32 | 50.21 | 50.07 | a | 54.00 | 63.95 | 74.72 | 75.39 | 71.50 | 72.02 | 62.77 | 50.40 | 40.34 | 58.97 | ||||||||||||
1969 | 46.29 | 43.64 | 46.44 | 57.53 | 66.23 | 71.07 | 77.76 | 78.97 | a | 74.52 | 58.83 | a | 50.48 | 45.94 | 59.81 | |||||||||||
1970 | 42.89 | 49.78 | a | 47.23 | 52.07 | 66.73 | 74.75 | 80.13 | 79.23 | 70.89 | b | 58.97 | 54.43 | a | 46.26 | 60.28 | ||||||||||
1971 | 46.52 | 46.86 | 54.87 | a | 56.83 | 62.48 | 75.43 | 81.26 | 74.37 | 72.85 | 57.08 | 50.45 | 40.65 | 59.97 | ||||||||||||
1972 | 45.66 | 51.16 | a | 61.53 | 60.93 | 67.32 | 75.29 | a | 82.02 | 77.73 | 73.08 | 60.02 | a | 46.40 | 42.31 | 61.95 | ||||||||||
1973 | 40.37 | 44.13 | a | 42.74 | b | 53.70 | c | 65.57 | b | 75.02 | a | 78.50 | b | 78.33 | a | 73.66 | a | 65.60 | a | 52.21 | a | 46.95 | 59.73 | |||
1974 | 41.94 | 45.68 | 52.72 | a | 57.53 | 67.15 | 80.33 | 76.30 | a | 75.39 | 69.91 | b | 60.26 | b | 50.32 | 40.47 | a | 59.83 | ||||||||
1975 | 42.66 | 43.23 | 45.32 | 48.60 | 61.71 | 71.97 | 75.27 | a | 77.73 | 71.77 | 60.27 | 47.67 | 40.48 | 57.22 | ||||||||||||
1976 | 40.42 | 43.69 | 43.15 | 50.38 | 60.55 | 70.85 | 71.42 | 73.02 | 64.50 | a | 54.23 | 47.33 | 42.34 | 55.16 | ||||||||||||
1977 | 38.92 | 47.43 | 44.27 | a | 55.50 | 56.87 | 72.87 | 75.10 | 73.61 | 68.87 | 61.21 | 49.67 | 45.03 | 57.44 | ||||||||||||
1978 | 41.60 | a | 44.18 | 51.97 | 55.60 | 60.24 | 70.27 | 73.50 | 73.38 | b | 68.00 | 62.11 | 45.93 | 37.11 | 56.99 | |||||||||||
1979 | 34.02 | 42.77 | 45.58 | 53.98 | a | 59.43 | b | 70.71 | b | 76.08 | a | 70.90 | f | 74.14 | a | ----- | z | ----- | z | ----- | z | 57.09 | d | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.63 | 44.67 | 48.71 | 55.85 | 63.36 | 73.11 | 77.12 | 75.44 | 71.74 | 61.70 | 50.30 | 43.38 | 59.28 | |||||||||||||
S.D. | 3.87 | 3.87 | 4.04 | 3.93 | 4.08 | 3.53 | 3.16 | 3.10 | 3.45 | 3.98 | 3.58 | 3.58 | 1.74 | |||||||||||||
SKEW | -0.82 | 0.07 | 0.36 | -0.16 | -1.20 | -0.29 | -1.04 | -1.16 | -1.20 | -0.23 | 0.15 | -0.33 | -1.75 | |||||||||||||
MAX | 47.68 | 52.30 | 61.53 | 62.66 | 69.87 | 80.33 | 82.02 | 80.42 | 77.67 | 70.19 | 57.67 | 50.97 | 61.95 | |||||||||||||
MIN | 32.32 | 35.67 | 39.63 | 47.43 | 51.26 | 63.90 | 69.26 | 64.68 | 61.41 | 51.88 | 42.40 | 34.19 | 52.59 | |||||||||||||
YRS | 47 | 48 | 47 | 47 | 46 | 45 | 45 | 45 | 45 | 47 | 47 | 46 | 38 |