YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 33.26 | 33.79 | 35.26 | 39.47 | 43.77 | 47.67 | 53.61 | 48.65 | 52.10 | 46.03 | 34.90 | 33.77 | 41.86 | |||||||||||||
1939 | 33.90 | 30.57 | 35.71 | 39.87 | 44.26 | 45.83 | 52.19 | 53.55 | 50.83 | 44.65 | 38.20 | 38.23 | 42.32 | |||||||||||||
1940 | 33.42 | 37.41 | 38.68 | 40.33 | 45.29 | 48.37 | 51.45 | 51.71 | 51.27 | 46.61 | 34.47 | 35.94 | 42.91 | |||||||||||||
1941 | 34.84 | 37.07 | 40.74 | 39.83 | ----- | z | ----- | z | 53.55 | 52.39 | 47.77 | 43.26 | 38.77 | 34.23 | 42.24 | b | ||||||||||
1942 | 28.65 | 33.68 | 33.58 | 38.50 | 42.77 | 45.43 | 53.16 | 52.29 | 49.93 | 45.35 | 36.20 | 35.74 | 41.27 | |||||||||||||
1943 | 26.32 | 34.61 | 34.26 | 39.63 | 41.17 | a | 46.13 | 49.81 | 49.65 | 50.03 | 45.06 | 38.20 | 33.13 | 40.67 | ||||||||||||
1944 | 31.32 | 33.28 | 32.90 | 37.83 | 42.13 | 46.23 | 49.23 | 50.77 | 51.03 | 47.45 | 36.40 | 32.00 | 40.88 | |||||||||||||
1945 | 34.32 | 34.36 | 32.68 | 35.90 | 44.48 | 45.80 | 50.32 | 50.19 | 46.07 | 42.81 | 35.90 | 33.39 | 40.52 | |||||||||||||
1946 | 30.65 | 32.82 | 33.65 | 37.10 | 43.68 | 46.40 | 51.48 | 49.42 | 46.33 | 39.19 | 34.17 | 33.97 | 39.90 | |||||||||||||
1947 | 26.94 | 35.18 | 38.39 | 41.17 | 45.13 | 46.57 | 49.13 | 48.35 | 48.87 | 43.73 | a | 35.80 | 33.90 | 41.10 | ||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.57 | a | 47.73 | 42.19 | 34.07 | 28.35 | 40.58 | g | ||||
1949 | 20.10 | 29.64 | 36.48 | 39.70 | 45.55 | 46.43 | 48.71 | 50.81 | 49.70 | 37.20 | a | 41.60 | 31.52 | 39.79 | ||||||||||||
1950 | 19.74 | 30.00 | 33.71 | 36.70 | 39.65 | 47.93 | 48.94 | 51.55 | 46.87 | 41.23 | a | 36.93 | 37.74 | 39.25 | ||||||||||||
1951 | 29.71 | 32.93 | 29.32 | 39.70 | 41.26 | 46.23 | 48.65 | 47.58 | 48.20 | 42.77 | 36.34 | a | 28.58 | 39.27 | ||||||||||||
1952 | 27.52 | 31.03 | 31.90 | 37.57 | 41.45 | 45.90 | 52.06 | 51.32 | 51.53 | 48.94 | 33.53 | 33.16 | 40.49 | |||||||||||||
1953 | 37.87 | 33.82 | 34.39 | 37.33 | 42.00 | 44.73 | 49.19 | 52.19 | 49.70 | 44.42 | 40.43 | 35.90 | 41.83 | |||||||||||||
1954 | 30.16 | 34.04 | 32.87 | 36.70 | 44.16 | 46.00 | 48.52 | 50.39 | 49.07 | 43.19 | 42.28 | a | 34.03 | 40.95 | ||||||||||||
1955 | 31.65 | 32.43 | 31.33 | a | 35.07 | 40.61 | 48.27 | 50.03 | 49.83 | a | 49.17 | 44.65 | 33.67 | 32.87 | a | 39.96 | ||||||||||
1956 | 33.68 | 28.17 | 34.03 | 39.97 | 46.42 | 46.77 | 52.71 | 51.68 | 48.87 | 41.81 | 35.50 | 32.26 | 40.99 | |||||||||||||
1957 | 25.60 | a | 34.00 | 37.58 | 40.67 | 46.74 | 49.13 | 49.87 | 50.10 | 52.67 | 44.19 | 36.07 | 35.65 | 41.86 | ||||||||||||
1958 | 36.68 | 41.39 | 35.97 | 40.00 | 48.52 | 52.63 | 54.52 | 52.90 | 49.83 | 46.58 | 37.20 | 39.06 | 44.61 | |||||||||||||
1959 | 34.45 | 33.46 | 35.52 | 39.23 | 42.55 | 48.30 | 52.35 | 49.52 | 47.33 | 44.42 | 35.50 | 33.00 | 41.30 | |||||||||||||
1960 | 28.94 | 33.61 | a | 35.68 | 39.57 | 42.74 | 47.67 | 50.97 | 49.94 | 48.97 | 44.13 | 37.07 | 32.42 | 40.97 | ||||||||||||
1961 | 36.45 | 37.63 | a | 36.35 | 38.97 | 43.61 | 49.77 | 51.71 | 53.65 | 45.34 | a | 41.32 | 33.07 | 32.65 | 41.71 | |||||||||||
1962 | 29.32 | 34.50 | 33.74 | 39.03 | 39.87 | 45.30 | 48.94 | 50.52 | 49.87 | 43.61 | 37.76 | a | 35.35 | 40.65 | ||||||||||||
1963 | 25.84 | 39.71 | 34.90 | 36.73 | 42.61 | 45.53 | 48.71 | 51.84 | 53.37 | 45.68 | 39.30 | 34.90 | 41.59 | |||||||||||||
1964 | 34.52 | 33.52 | 34.19 | 36.80 | 40.81 | 47.20 | 51.10 | 51.16 | 48.33 | 46.10 | 35.70 | 31.35 | 40.90 | |||||||||||||
1965 | 33.42 | 34.78 | a | 37.45 | 40.43 | 39.90 | 45.57 | 51.16 | 54.03 | 47.97 | 46.71 | 41.33 | 31.71 | 42.04 | ||||||||||||
1966 | 33.61 | 34.11 | 35.39 | 40.13 | 41.74 | 46.77 | 50.16 | 50.42 | 50.83 | 42.61 | 40.83 | 37.71 | 42.03 | |||||||||||||
1967 | 36.42 | 34.93 | 34.03 | 36.13 | 42.97 | 50.80 | 51.35 | 55.39 | 51.57 | 44.42 | 40.07 | 33.13 | 42.60 | |||||||||||||
1968 | 32.42 | 39.72 | 38.77 | 36.53 | 42.77 | 46.83 | 50.39 | 50.77 | 48.57 | 41.39 | 37.53 | 29.81 | 41.29 | |||||||||||||
1969 | 25.19 | 31.64 | 35.32 | 37.97 | 45.19 | 52.37 | 48.16 | 48.29 | 48.73 | 40.90 | 38.07 | 34.61 | 40.54 | |||||||||||||
1970 | 33.19 | 36.68 | 36.26 | 35.43 | 40.77 | 48.20 | 49.39 | 49.19 | 46.77 | 40.74 | 38.47 | 32.35 | 40.62 | |||||||||||||
1971 | 31.55 | 33.64 | 32.55 | 36.77 | 42.10 | 45.30 | 51.23 | 52.71 | 47.67 | 40.06 | 35.87 | 30.90 | 40.03 | |||||||||||||
1972 | 29.30 | a | 33.14 | 37.42 | 34.43 | 45.32 | 47.53 | 52.52 | 52.77 | 46.83 | 42.68 | 38.47 | 27.97 | 40.70 | ||||||||||||
1973 | 30.48 | 35.79 | 35.45 | 38.40 | 43.45 | 46.60 | 52.00 | 47.77 | 49.97 | 42.45 | 35.10 | 37.00 | 41.21 | |||||||||||||
1974 | 28.97 | 33.14 | 35.68 | 38.52 | a | 40.84 | 47.17 | 51.61 | 51.55 | 53.93 | 43.65 | 38.67 | 35.52 | 41.60 | ||||||||||||
1975 | 33.29 | 32.14 | 33.90 | 34.57 | 41.03 | 45.33 | 50.97 | 49.16 | 51.50 | 42.42 | 35.40 | 35.06 | 40.40 | |||||||||||||
1976 | 32.65 | 31.90 | 32.74 | 36.57 | 41.58 | 43.73 | 48.10 | 51.13 | 49.97 | 43.06 | 39.27 | 31.84 | 40.21 | |||||||||||||
1977 | 30.26 | 35.86 | 33.68 | 38.67 | 40.19 | 45.53 | 48.50 | a | 54.97 | 48.17 | 42.48 | 34.73 | 35.26 | 40.69 | ||||||||||||
1978 | 34.52 | 36.68 | 38.03 | 38.17 | 41.03 | 49.90 | 51.32 | 52.13 | 48.43 | 44.10 | 30.53 | 27.19 | 41.00 | |||||||||||||
1979 | 23.77 | 33.25 | 38.48 | 39.67 | 43.26 | 46.20 | 51.13 | 51.58 | 52.52 | a | 46.26 | 35.63 | 35.90 | a | 41.47 | |||||||||||
1980 | 28.19 | 34.24 | 34.58 | 38.87 | 41.32 | 45.23 | 49.06 | 47.00 | 47.63 | 42.90 | 38.55 | a | 35.27 | a | 40.24 | |||||||||||
1981 | 36.83 | a | 33.68 | 36.90 | 38.40 | 41.71 | 46.17 | 49.65 | 53.84 | 47.57 | 41.97 | a | 38.63 | 34.71 | 41.67 | |||||||||||
1982 | 28.68 | 32.07 | 33.90 | 34.37 | 40.90 | 48.87 | 49.87 | 51.13 | 49.41 | a | 44.00 | 34.93 | 32.45 | 40.05 | ||||||||||||
1983 | 36.39 | 38.68 | 39.97 | a | 39.90 | 44.52 | 47.60 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 41.17 | f | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.00 | 34.19 | 35.21 | 38.16 | 42.77 | 47.09 | 50.62 | 51.03 | 49.31 | 43.54 | 36.91 | 33.59 | 41.07 | |||||||||||||
S.D. | 4.25 | 2.67 | 2.35 | 1.82 | 2.05 | 1.89 | 1.63 | 1.91 | 1.99 | 2.26 | 2.48 | 2.68 | 1.00 | |||||||||||||
SKEW | -0.70 | 0.50 | 0.18 | -0.48 | 0.66 | 1.15 | 0.34 | 0.10 | 0.31 | -0.18 | 0.06 | -0.35 | 0.94 | |||||||||||||
MAX | 37.87 | 41.39 | 40.74 | 41.17 | 48.52 | 52.63 | 54.52 | 55.39 | 53.93 | 48.94 | 42.28 | 39.06 | 44.61 | |||||||||||||
MIN | 19.74 | 28.17 | 29.32 | 34.37 | 39.65 | 43.73 | 48.10 | 47.00 | 45.34 | 37.20 | 30.53 | 27.19 | 39.25 | |||||||||||||
YRS | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 43 |