YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1940 | 26.42 | 31.70 | a | 41.53 | 49.68 | b | 59.24 | 66.04 | b | 69.70 | a | 67.38 | a | 63.10 | 49.45 | b | 30.10 | a | 28.82 | a | 48.60 | |||||
1941 | 30.02 | 33.38 | 45.24 | h | 52.65 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.68 | i | |||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | 53.00 | r | 57.57 | 66.60 | e | 65.98 | b | 58.55 | 48.13 | 38.48 | 30.82 | 52.30 | e | |||||
1954 | 25.35 | 34.62 | 36.42 | 43.79 | a | 54.57 | a | 58.10 | a | 65.27 | a | 63.02 | a | 57.62 | d | 44.16 | 40.53 | 29.24 | 46.06 | |||||||
1955 | 28.60 | b | 26.80 | a | 30.75 | a | 42.50 | 50.90 | a | 62.60 | 65.34 | 65.98 | 57.37 | 46.58 | 31.62 | b | 25.95 | a | 44.58 | |||||||
1956 | 27.64 | f | 21.73 | a | 34.53 | 48.97 | 57.80 | a | 58.65 | 69.05 | 66.08 | 58.35 | 44.92 | 30.00 | a | 28.15 | 47.11 | a | ||||||||
1957 | 13.81 | 22.91 | a | 36.63 | 47.88 | 60.06 | 61.67 | 65.18 | 63.82 | 61.70 | 46.15 | a | 33.87 | 33.05 | a | 45.56 | ||||||||||
1958 | 32.50 | a | 37.66 | 39.95 | 46.80 | 62.77 | 66.53 | 70.97 | 71.81 | ----- | z | ----- | z | ----- | z | ----- | z | 53.62 | d | |||||||
1959 | ----- | z | 26.94 | a | 38.47 | 48.40 | a | 52.39 | 61.60 | 66.81 | 62.58 | 55.75 | 44.71 | 30.69 | a | 27.10 | 46.86 | a | ||||||||
1960 | 20.77 | a | 29.41 | 37.63 | 46.12 | 51.76 | 61.22 | 70.92 | a | 63.84 | 57.65 | 47.71 | 34.63 | 26.97 | 45.72 | |||||||||||
1961 | 29.26 | 36.39 | a | 39.90 | 45.65 | 55.35 | 66.23 | 69.63 | 70.69 | 54.97 | 43.97 | b | 30.05 | 25.52 | 47.30 | |||||||||||
1962 | 20.08 | 30.82 | 34.65 | 49.26 | a | 51.27 | a | 59.05 | 64.77 | a | 64.28 | a | 59.87 | 46.84 | b | 38.67 | a | 33.11 | 46.06 | |||||||
1963 | 22.35 | a | 34.07 | a | 40.57 | c | 46.12 | 54.58 | a | 61.92 | 65.62 | a | 68.23 | a | 63.13 | c | 49.52 | a | 36.68 | 27.06 | 47.49 | |||||
1964 | 28.10 | a | 27.76 | 34.84 | 45.27 | b | 53.44 | 61.30 | 67.69 | 62.52 | 55.00 | 46.44 | 35.22 | 24.37 | a | 45.16 | ||||||||||
1965 | 28.39 | 30.43 | a | 33.23 | 48.30 | 52.56 | 61.13 | 67.29 | c | ----- | z | 54.30 | 48.45 | 38.18 | 30.48 | b | 44.79 | a | ||||||||
1966 | 26.39 | 31.98 | 38.05 | 46.83 | 55.95 | 58.05 | a | 65.95 | b | 66.18 | 62.90 | a | 46.29 | b | 37.00 | a | 32.44 | 47.33 | ||||||||
1967 | 31.62 | a | 35.32 | 37.40 | 43.62 | 53.38 | a | 64.29 | b | 66.98 | f | 70.56 | 64.30 | c | 47.47 | 35.43 | 24.79 | 46.20 | a | |||||||
1968 | 25.81 | 33.78 | 41.37 | 44.83 | 53.53 | 60.97 | 68.92 | 63.74 | 57.85 | 43.95 | 35.28 | 25.82 | a | 46.32 | ||||||||||||
1969 | 16.31 | 26.73 | 37.29 | b | 47.60 | 57.02 | 64.79 | a | 64.87 | 65.16 | 58.35 | 43.50 | 35.15 | 29.89 | 45.56 | |||||||||||
1970 | 25.48 | 32.09 | a | 37.21 | b | 43.00 | 55.02 | 65.20 | 69.66 | 67.50 | a | 53.87 | 44.05 | 34.22 | a | 25.10 | 46.03 | |||||||||
1971 | 26.81 | b | 30.20 | a | 32.79 | 45.34 | a | 56.39 | 58.72 | a | 66.47 | 69.52 | 54.45 | 44.15 | 35.35 | 23.73 | 45.33 | |||||||||
1972 | 21.73 | a | 29.52 | 40.94 | 42.97 | 56.12 | b | 61.18 | 64.65 | 67.89 | 54.05 | 45.34 | 36.58 | 25.05 | 45.50 | |||||||||||
1973 | 24.32 | 31.73 | 39.94 | ----- | z | 55.48 | 60.92 | 68.76 | b | 67.00 | 58.78 | 45.77 | 32.82 | b | 31.78 | b | 47.03 | a | ||||||||
1974 | 24.81 | 33.75 | 38.90 | 47.80 | 51.16 | 64.92 | 66.52 | 67.10 | 59.23 | h | ----- | z | ----- | z | ----- | z | 49.37 | d | ||||||||
1975 | ----- | z | ----- | z | 34.42 | a | 42.78 | ----- | z | 63.64 | p | ----- | z | 64.74 | f | 59.61 | g | ----- | z | ----- | z | ----- | z | 38.60 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.19 | 30.86 | 37.28 | 46.35 | 55.03 | 61.85 | 67.30 | 66.40 | 58.19 | 46.07 | 34.79 | 28.06 | 46.17 | |||||||||||||
S.D. | 4.72 | 4.04 | 2.97 | 2.61 | 3.06 | 2.80 | 2.07 | 2.68 | 3.29 | 1.87 | 3.05 | 3.02 | 1.07 | |||||||||||||
SKEW | -0.74 | -0.54 | -0.39 | 0.34 | 0.74 | 0.19 | 0.36 | 0.34 | 0.40 | 0.36 | -0.12 | 0.32 | 0.79 | |||||||||||||
MAX | 32.50 | 37.66 | 41.53 | 52.65 | 62.77 | 66.53 | 70.97 | 71.81 | 64.30 | 49.52 | 40.53 | 33.11 | 48.60 | |||||||||||||
MIN | 13.81 | 21.73 | 30.75 | 42.50 | 50.90 | 57.57 | 64.65 | 62.52 | 53.87 | 43.50 | 30.00 | 23.73 | 44.58 | |||||||||||||
YRS | 21 | 23 | 23 | 23 | 22 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 15 |