YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | 50.27 | k | 60.97 | 62.22 | m | 77.79 | f | 78.41 | b | 75.39 | 71.93 | 56.34 | 52.25 | 38.24 | 61.93 | e | ||||||
1950 | 36.66 | 46.62 | 50.85 | a | 60.41 | a | 63.71 | b | 70.37 | 78.97 | 76.32 | 68.82 | 65.21 | 54.80 | 49.23 | 60.16 | ||||||||||
1951 | 43.66 | 44.23 | 50.05 | a | 58.00 | d | 66.69 | 73.18 | 81.76 | 78.69 | 75.12 | 60.77 | 49.10 | 42.03 | 60.27 | |||||||||||
1952 | 39.29 | 44.40 | 42.92 | y | ----- | z | 68.65 | a | 69.40 | a | 79.75 | a | 80.94 | 71.69 | i | 65.11 | 45.83 | 42.63 | a | 59.56 | c | |||||
1953 | 47.87 | 43.00 | 50.02 | e | 55.97 | a | 57.92 | 71.60 | 83.79 | 78.68 | 73.98 | b | 59.82 | a | 52.70 | 42.03 | a | 59.78 | ||||||||
1954 | 44.45 | a | 50.46 | 48.68 | 62.98 | a | 69.56 | 72.02 | 82.18 | 75.92 | 73.03 | 63.68 | 51.78 | a | 40.89 | 61.30 | ||||||||||
1955 | 38.53 | 40.84 | 50.06 | 55.18 | 63.94 | 72.77 | 78.29 | 81.06 | 73.17 | 62.73 | 49.82 | b | 47.45 | 59.49 | ||||||||||||
1956 | 47.48 | 42.48 | 52.15 | 56.77 | b | 65.27 | 75.55 | 79.50 | 75.73 | 74.87 | 59.31 | 47.05 | a | 43.39 | 59.96 | |||||||||||
1957 | 41.29 | 51.29 | 51.58 | 57.23 | 62.19 | 75.75 | ----- | z | 75.63 | 67.08 | 54.84 | 43.70 | ----- | z | 58.06 | b | ||||||||||
1958 | ----- | z | 49.32 | f | 45.92 | a | 55.83 | 69.76 | 74.60 | 79.81 | 82.39 | 70.98 | a | ----- | z | ----- | z | ----- | z | 68.47 | e | |||||
1959 | ----- | z | 46.35 | b | 55.59 | c | 64.43 | 65.19 | 78.58 | 85.81 | 79.08 | 70.75 | 64.87 | 52.33 | 45.00 | 64.36 | a | |||||||||
1960 | 40.16 | 46.16 | 56.74 | 62.00 | 67.48 | 80.78 | 83.89 | 81.44 | 77.35 | 63.48 | 50.70 | 43.98 | 62.85 | |||||||||||||
1961 | 44.44 | 48.91 | 53.27 | a | 62.18 | 65.11 | 80.00 | 85.60 | 80.40 | 70.62 | a | 60.85 | 49.83 | 43.94 | 62.10 | |||||||||||
1962 | 45.68 | 48.16 | 48.24 | 65.34 | a | 63.73 | 75.57 | 80.21 | 81.87 | 74.85 | 63.90 | 54.17 | 46.18 | 62.32 | ||||||||||||
1963 | 42.56 | 55.02 | 49.89 | c | 55.33 | a | 68.45 | 71.62 | a | 81.60 | 79.56 | 74.63 | 63.82 | 51.75 | 44.52 | 61.56 | ||||||||||
1964 | 41.92 | 44.76 | ----- | z | ----- | z | 66.55 | b | 73.60 | a | 82.15 | a | 80.37 | ----- | z | ----- | z | ----- | z | 46.31 | 62.24 | e | ||||
1965 | 46.79 | 47.57 | 51.35 | 57.37 | 64.05 | ----- | z | 80.68 | 80.16 | 68.91 | a | 65.21 | 52.87 | 42.47 | 59.77 | a | ||||||||||
1966 | ----- | z | 43.30 | 54.81 | 61.98 | a | ----- | z | 75.57 | 80.65 | a | ----- | z | 72.95 | 61.50 | 52.93 | 46.30 | i | 62.96 | d | ||||||
1967 | 46.21 | 48.16 | 53.84 | 50.17 | 66.58 | 71.27 | 83.86 | b | 83.89 | d | 74.17 | a | 66.38 | c | 54.64 | b | 40.02 | a | 61.60 | |||||||
1968 | ----- | z | 52.43 | b | 52.55 | a | 57.37 | 64.61 | h | 75.88 | d | 81.10 | a | 77.24 | b | 73.30 | b | 61.20 | a | 51.98 | b | 42.17 | a | 62.52 | b | |
1969 | 46.00 | b | 46.00 | f | 49.12 | a | 57.64 | h | 66.37 | h | 71.10 | 80.37 | 82.48 | j | 72.53 | l | 53.85 | h | ----- | z | 45.67 | d | 58.45 | g | ||
1970 | 44.21 | ----- | z | 51.34 | b | 53.42 | 67.52 | b | 75.03 | 84.55 | u | 81.33 | m | 70.57 | 60.16 | 52.45 | 42.73 | 57.49 | c | |||||||
1971 | 44.12 | a | 47.43 | 52.92 | 56.48 | 62.48 | 73.30 | 81.84 | 81.87 | 73.05 | a | 56.66 | 48.64 | a | 38.58 | a | 59.78 | |||||||||
1972 | 40.90 | 49.86 | a | 60.05 | 60.14 | a | 67.15 | 74.93 | a | 83.21 | 76.18 | a | 67.62 | a | 56.70 | a | 47.02 | b | 39.93 | b | 60.31 | |||||
1973 | 39.27 | 46.93 | 49.13 | a | 57.63 | c | ----- | z | 77.02 | 81.53 | 77.89 | 68.93 | ----- | z | ----- | z | ----- | z | 62.29 | d | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 43.08 | 47.06 | 51.73 | 58.51 | 65.60 | 74.33 | 81.52 | 79.12 | 72.12 | 61.55 | 50.78 | 43.21 | 60.88 | |||||||||||||
S.D. | 3.21 | 3.52 | 3.16 | 3.75 | 2.87 | 2.97 | 2.09 | 2.54 | 2.72 | 3.35 | 2.98 | 2.85 | 1.12 | |||||||||||||
SKEW | -0.29 | 0.34 | 0.74 | -0.05 | -0.77 | 0.46 | 0.43 | -0.02 | -0.21 | -0.49 | -0.76 | 0.15 | 0.38 | |||||||||||||
MAX | 47.87 | 55.02 | 60.05 | 65.34 | 69.76 | 80.78 | 85.81 | 83.89 | 77.35 | 66.38 | 54.80 | 49.23 | 62.85 | |||||||||||||
MIN | 36.66 | 40.84 | 45.92 | 50.17 | 57.92 | 69.40 | 78.29 | 75.39 | 67.08 | 54.84 | 43.70 | 38.24 | 59.49 | |||||||||||||
YRS | 20 | 21 | 22 | 22 | 20 | 23 | 23 | 22 | 22 | 21 | 21 | 21 | 13 |