YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 83.71 | n | 80.03 | 67.81 | 48.82 | b | 39.39 | 59.01 | h | |||
1919 | 36.71 | 41.79 | 51.13 | 64.97 | 74.37 | a | 80.00 | s | 82.39 | 86.53 | a | 75.17 | 56.45 | ----- | z | 39.94 | 60.94 | b | ||||||||
1920 | 44.13 | 49.93 | b | 56.87 | h | 59.12 | m | 75.31 | b | 82.20 | j | 88.45 | 83.81 | 78.19 | d | 55.50 | k | 53.37 | 41.74 | 64.37 | d | |||||
1921 | 40.50 | s | 45.39 | 56.84 | 61.68 | e | 72.27 | a | 82.82 | b | 85.70 | a | 81.94 | 81.27 | d | ----- | z | ----- | z | ----- | z | 70.99 | d | |||
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 82.50 | b | 69.61 | 48.03 | 46.68 | 61.71 | h | |||
1923 | 49.52 | 45.64 | 50.48 | 62.17 | 75.81 | 84.10 | 87.06 | 79.61 | 72.80 | 60.68 | 47.83 | 38.59 | b | 62.86 | ||||||||||||
1924 | 36.90 | k | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | 69.57 | w | 76.25 | g | 83.27 | 88.68 | 85.00 | a | 82.34 | a | 67.61 | 50.30 | 47.10 | a | 72.04 | e | ||||
1949 | 35.60 | a | 43.36 | 54.97 | 64.77 | 72.13 | 82.07 | a | 85.00 | 86.13 | 82.13 | 65.10 | 63.34 | a | 44.23 | 64.90 | ||||||||||
1950 | 44.87 | 51.36 | 57.77 | 69.80 | 74.65 | 86.55 | a | 86.35 | 87.39 | 78.10 | a | 78.15 | d | 61.03 | 54.93 | a | 69.25 | |||||||||
1951 | 45.42 | 51.05 | f | 52.68 | l | 60.80 | y | 73.27 | a | 82.34 | a | 90.90 | 85.27 | a | 81.93 | 66.77 | 52.63 | 41.20 | a | 68.86 | c | |||||
1952 | 43.55 | 46.11 | a | 45.87 | a | 63.67 | 74.13 | 82.80 | 86.39 | 85.68 | 82.50 | 76.52 | 49.10 | 42.10 | 64.87 | |||||||||||
1953 | 49.68 | 49.64 | 58.33 | a | 64.00 | 69.20 | a | 87.03 | 89.10 | 86.39 | 85.52 | a | 71.20 | a | 57.10 | 42.20 | a | 67.45 | ||||||||
1954 | 48.21 | c | 58.85 | a | 52.29 | 70.37 | 75.74 | 84.73 | 88.29 | 84.35 | 80.33 | c | 72.03 | 62.25 | b | 45.71 | 68.60 | |||||||||
1955 | 40.55 | 41.36 | 55.39 | c | 63.43 | 70.46 | e | 82.59 | a | 87.10 | 85.48 | 83.23 | 73.94 | 56.40 | e | 49.28 | b | 65.77 | ||||||||
1956 | 50.87 | 43.03 | ----- | z | ----- | z | 79.61 | 90.63 | 87.63 | d | 84.79 | b | 86.20 | 70.70 | a | 52.13 | 47.13 | 69.27 | b | |||||||
1957 | 43.87 | 54.30 | a | 55.23 | a | 60.43 | 68.23 | 84.70 | 87.06 | 82.97 | a | 81.50 | 65.43 | c | 46.73 | d | 50.61 | 65.09 | ||||||||
1958 | ----- | z | ----- | z | ----- | z | 62.77 | 79.90 | 89.10 | a | 89.42 | 90.67 | y | 78.32 | b | 69.87 | 56.83 | a | 54.65 | 72.61 | d | |||||
1959 | 50.26 | 46.84 | c | ----- | z | ----- | z | ----- | z | ----- | z | 90.48 | 83.19 | 79.33 | 66.97 | 55.27 | 45.77 | 64.76 | d | |||||||
1960 | 38.10 | a | 40.86 | 58.39 | 66.77 | 73.16 | 86.03 | 90.06 | 88.77 | 82.33 | 64.19 | 56.62 | a | 40.42 | 65.48 | |||||||||||
1961 | 46.23 | 49.46 | 52.77 | 66.27 | 77.00 | 89.43 | 89.65 | 84.39 | 76.57 | 66.77 | 50.17 | a | 39.50 | a | 65.68 | |||||||||||
1962 | 38.81 | 48.91 | e | 49.59 | b | 70.20 | 75.65 | 84.67 | 88.52 | 89.61 | 81.00 | e | 67.33 | a | 58.31 | a | 49.73 | a | 66.86 | |||||||
1963 | 38.42 | 50.07 | a | 55.48 | 65.63 | 78.77 | 85.28 | a | 91.36 | c | 81.00 | 80.11 | b | 71.84 | 56.27 | 47.52 | 66.81 | |||||||||
1964 | 43.17 | a | 43.03 | 49.41 | b | 60.04 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.35 | 44.99 | h | ||
1965 | 47.03 | 48.31 | b | 51.75 | g | 65.34 | a | 70.96 | c | 81.43 | b | 86.20 | a | 85.47 | a | 74.25 | b | 72.00 | c | 56.41 | c | 44.93 | a | 66.58 | a | |
1966 | 40.30 | d | 43.88 | d | 57.86 | b | 67.43 | 79.13 | a | 85.17 | 91.17 | a | 86.50 | a | 78.27 | 68.55 | 59.62 | a | 41.61 | c | 66.62 | |||||
1967 | 42.26 | 53.86 | 61.97 | 66.93 | 74.14 | b | 82.89 | c | 88.34 | b | 82.71 | c | 78.32 | b | 67.25 | s | 59.00 | a | 38.34 | b | 66.25 | a | ||||
1968 | 40.32 | 51.43 | f | 55.92 | f | 61.15 | c | 74.24 | f | ----- | z | 87.48 | j | ----- | z | 78.13 | ----- | z | 50.86 | a | 41.00 | a | 54.29 | g | ||
1969 | 46.35 | 45.61 | 51.10 | 68.07 | 76.87 | 83.63 | 88.84 | 87.94 | 80.17 | 57.56 | v | 52.80 | 48.39 | 66.34 | a | |||||||||||
1970 | 46.40 | a | 54.07 | 51.42 | 58.33 | 74.77 | 82.20 | 87.19 | 86.58 | 77.20 | 61.65 | 57.97 | 46.97 | 65.40 | ||||||||||||
1971 | 47.29 | 49.00 | 58.61 | 64.73 | 71.03 | 84.50 | 85.78 | v | 82.96 | e | 77.10 | 62.87 | a | 54.00 | a | 39.29 | 62.85 | a | ||||||||
1972 | 48.00 | 55.17 | 65.71 | 67.90 | 75.71 | 81.87 | 89.48 | 85.48 | 78.70 | 65.17 | a | 49.28 | a | 42.63 | a | 67.09 | ||||||||||
1973 | 37.73 | e | 44.15 | a | 47.55 | 57.93 | c | 74.48 | b | 82.20 | 85.13 | a | 85.32 | 78.13 | 70.32 | 57.00 | 50.53 | a | 64.21 | |||||||
1974 | 41.58 | 48.00 | a | 59.52 | 64.10 | 78.06 | 88.13 | 84.77 | 84.03 | 76.40 | 65.65 | 54.57 | 42.68 | 65.62 | ||||||||||||
1975 | 43.77 | 45.18 | 51.90 | 61.30 | 73.00 | 85.47 | 86.97 | 86.26 | 76.43 | 72.10 | 56.73 | 48.07 | b | 65.60 | ||||||||||||
1976 | 47.16 | 55.86 | 57.03 | a | 66.13 | 73.06 | 84.20 | 86.74 | 85.87 | 79.77 | 66.39 | 57.30 | 48.83 | a | 67.36 | |||||||||||
1977 | 39.90 | 51.04 | 55.06 | 69.03 | ----- | z | 85.30 | 85.87 | 84.16 | 79.03 | 70.33 | a | 56.44 | c | 51.55 | 66.16 | a | |||||||||
1978 | 45.36 | c | 46.82 | 58.74 | 66.20 | 72.46 | e | 85.76 | a | 90.39 | 84.45 | 77.40 | 72.94 | 54.13 | 44.94 | 66.63 | ||||||||||
1979 | 39.03 | 49.43 | 51.97 | 65.73 | 67.11 | c | 84.17 | 93.06 | 84.74 | 85.80 | 75.90 | 48.30 | 51.39 | 66.39 | ||||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.65 | 48.13 | 54.73 | 64.91 | 74.21 | 84.68 | 87.99 | 84.99 | 79.64 | 68.53 | 54.48 | 45.24 | 66.12 | |||||||||||||
S.D. | 4.24 | 4.57 | 4.51 | 3.24 | 3.21 | 2.34 | 2.27 | 2.09 | 3.07 | 4.72 | 4.34 | 4.54 | 1.45 | |||||||||||||
SKEW | -0.12 | 0.41 | 0.20 | -0.30 | -0.18 | 0.84 | -0.07 | -0.26 | 0.17 | -0.23 | -0.03 | 0.30 | 0.07 | |||||||||||||
MAX | 50.87 | 58.85 | 65.71 | 70.37 | 79.90 | 90.63 | 93.06 | 89.61 | 86.20 | 78.15 | 63.34 | 54.93 | 69.25 | |||||||||||||
MIN | 35.60 | 40.86 | 45.87 | 57.93 | 67.11 | 81.43 | 82.39 | 79.61 | 72.80 | 56.45 | 46.73 | 38.34 | 62.86 | |||||||||||||
YRS | 33 | 32 | 28 | 30 | 31 | 31 | 33 | 33 | 37 | 32 | 35 | 37 | 21 |