YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.73 | 51.55 | 48.80 | 43.10 | 34.67 | 31.08 | 42.99 | f | ||||||
1944 | 29.31 | 29.14 | a | 32.52 | 34.22 | a | 38.31 | 43.37 | 46.10 | 49.60 | 47.47 | 44.23 | 38.07 | 32.82 | 38.76 | |||||||||||
1945 | 31.47 | 31.61 | a | 29.39 | c | 36.92 | 38.40 | 41.83 | 47.06 | 49.40 | 47.65 | 41.34 | 38.58 | 35.05 | a | 39.06 | ||||||||||
1946 | 30.42 | 28.96 | 30.94 | 34.59 | c | 37.05 | a | 41.78 | a | 45.31 | 50.32 | a | 48.88 | 41.85 | 36.12 | 35.05 | 38.44 | |||||||||
1947 | 30.39 | 29.75 | 32.02 | b | 34.98 | d | 37.21 | 39.82 | 44.07 | a | 46.05 | 44.68 | b | 41.20 | a | 36.80 | 32.27 | 37.44 | ||||||||
1948 | 31.16 | 32.52 | 33.21 | 37.22 | 38.71 | 41.72 | 47.31 | 50.18 | 48.00 | 40.32 | 35.88 | 33.00 | 39.10 | |||||||||||||
1949 | 30.31 | 31.12 | 31.32 | 34.33 | 38.44 | 41.87 | 45.79 | 48.56 | 47.03 | 41.55 | 35.27 | 31.97 | 38.13 | |||||||||||||
1950 | 35.81 | 33.66 | 32.24 | 34.60 | 37.73 | 42.77 | 46.71 | 50.19 | 46.90 | 41.90 | 37.32 | 34.94 | 39.56 | |||||||||||||
1951 | 32.60 | 32.61 | 32.68 | 34.18 | 38.55 | b | 42.78 | 45.52 | 50.10 | 48.68 | 43.27 | 37.55 | 33.81 | 39.36 | ||||||||||||
1952 | 32.48 | 30.29 | 31.60 | 34.68 | 39.24 | 41.32 | 46.60 | 49.92 | 48.18 | 43.58 | 33.64 | b | 30.81 | 38.53 | ||||||||||||
1953 | 30.60 | 28.07 | 31.40 | 34.70 | 36.71 | 40.97 | 46.84 | 48.60 | 47.45 | 41.35 | 35.78 | 30.56 | 37.75 | |||||||||||||
1954 | 31.08 | 31.41 | 32.00 | 35.73 | 37.58 | 40.82 | 45.16 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.25 | e | |||||||
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.03 | 42.68 | 34.76 | e | 32.34 | 39.45 | h | |||
1959 | 34.02 | a | 30.07 | a | 32.90 | a | 35.86 | b | 38.54 | d | 41.26 | a | 46.97 | a | 51.41 | c | 48.70 | 42.47 | 35.12 | 30.10 | 38.95 | |||||
1960 | 31.26 | 29.43 | 34.24 | 34.78 | 38.11 | 42.52 | 47.27 | 50.44 | 48.70 | 40.98 | 33.00 | 30.50 | 38.44 | |||||||||||||
1961 | 31.00 | 31.55 | 30.24 | 35.88 | 38.10 | 41.08 | 44.56 | 48.03 | 47.93 | 42.11 | 34.52 | 32.74 | 38.15 | |||||||||||||
1962 | 33.10 | 31.98 | 33.03 | 37.02 | 39.37 | 43.18 | 48.56 | 48.45 | 47.13 | 41.31 | 34.30 | 34.53 | 39.33 | |||||||||||||
1963 | 34.53 | 33.29 | 33.84 | 35.32 | 39.47 | 42.43 | 46.42 | 47.26 | 47.67 | 42.26 | 37.57 | 32.79 | 39.40 | |||||||||||||
1964 | 29.66 | 27.48 | 32.31 | 33.72 | 37.71 | 42.42 | 44.13 | 47.18 | 44.72 | 40.26 | 34.32 | 34.52 | 37.37 | |||||||||||||
1965 | 30.84 | 32.70 | 32.73 | 35.85 | 38.85 | 42.25 | 46.23 | 48.77 | 46.07 | 41.42 | 35.80 | 33.23 | 38.73 | |||||||||||||
1966 | 31.21 | 29.73 | 31.42 | 33.78 | 37.63 | 41.03 | 44.66 | 48.08 | 47.70 | 40.61 | 37.37 | 33.19 | 38.04 | |||||||||||||
1967 | 30.87 | 29.59 | 33.08 | 34.52 | 39.34 | 42.33 | 46.58 | 50.21 | 46.07 | 41.06 | 35.20 | 32.56 | 38.45 | |||||||||||||
1968 | 33.40 | 29.81 | 32.19 | 33.52 | 38.21 | 42.10 | 46.15 | 48.21 | 46.73 | 40.26 | 33.58 | 33.32 | 38.12 | |||||||||||||
1969 | 31.84 | 29.77 | 31.74 | 34.22 | 37.90 | 42.20 | 47.77 | 50.71 | 49.08 | 41.08 | 35.53 | 29.53 | 38.45 | |||||||||||||
1970 | 31.69 | 29.95 | 30.66 | 34.85 | 38.31 | 42.13 | 45.06 | 48.42 | 48.08 | 42.26 | 37.23 | 32.02 | 38.39 | |||||||||||||
1971 | 30.87 | 28.41 | 30.31 | 34.22 | 36.58 | 41.72 | a | 44.32 | 46.58 | 46.10 | 40.84 | 36.52 | 32.29 | 37.40 | ||||||||||||
1972 | 30.82 | 33.29 | 32.48 | 36.08 | 38.37 | 43.35 | 46.60 | 49.55 | 47.38 | 41.18 | 32.82 | 33.34 | 38.77 | |||||||||||||
1973 | 29.26 | 29.43 | 32.47 | 33.35 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.13 | h | |||
1974 | ----- | z | ----- | z | ----- | z | ----- | z | 39.10 | 44.25 | 47.61 | 49.16 | 48.97 | 42.76 | 36.52 | 29.02 | 42.17 | d | ||||||||
1975 | 29.18 | 27.64 | 28.19 | 34.08 | 36.89 | 41.32 | 46.10 | 48.89 | 48.63 | 42.02 | 36.67 | 33.05 | 37.72 | |||||||||||||
1976 | 33.24 | 30.41 | 30.02 | 32.97 | 38.00 | 41.33 | 45.39 | 47.44 | 46.10 | 41.03 | 35.30 | 30.53 | a | 37.65 | ||||||||||||
1977 | 31.05 | 27.27 | 27.56 | 33.75 | 38.47 | 43.75 | 48.31 | 52.76 | 50.58 | 41.65 | ----- | z | ----- | z | 39.51 | b | ||||||||||
1978 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 49.84 | 47.80 | 42.53 | 38.28 | 32.97 | a | 42.28 | g | ||||
1979 | 30.47 | a | 33.04 | a | 32.79 | 35.08 | 38.61 | 42.30 | 46.21 | 49.31 | 46.88 | 40.35 | 34.00 | 32.15 | 38.43 | |||||||||||
1980 | 30.77 | 27.69 | 32.05 | 33.50 | 38.92 | 39.37 | 46.89 | 49.26 | 48.38 | a | 39.52 | 34.62 | 33.21 | 37.85 | ||||||||||||
1981 | 25.98 | 30.07 | a | 29.85 | a | 35.38 | a | 39.08 | 41.98 | 49.37 | 52.79 | 49.58 | 44.66 | 37.09 | a | 33.44 | 39.11 | |||||||||
1982 | 30.98 | b | 34.71 | 34.02 | a | 36.50 | 40.06 | 42.28 | 46.45 | 48.23 | a | 46.38 | a | 42.23 | 36.79 | b | 30.37 | 39.08 | ||||||||
1983 | 30.29 | c | 31.04 | 33.13 | 35.13 | 38.13 | 42.05 | a | 46.81 | 49.82 | 47.33 | 43.88 | a | 35.05 | 34.85 | a | 38.96 | |||||||||
1984 | 29.85 | a | 30.07 | a | 32.62 | a | 35.78 | 39.71 | 42.32 | 47.55 | a | 49.97 | 49.03 | a | 44.38 | b | 36.85 | 32.02 | a | 39.18 | ||||||
1985 | 31.48 | 31.48 | 29.26 | b | 34.47 | 36.87 | 41.73 | 45.40 | 47.82 | 47.77 | 44.97 | b | 38.97 | 32.98 | 38.60 | |||||||||||
1986 | 30.89 | 32.05 | 33.68 | 36.80 | 39.15 | 43.32 | 48.52 | 52.76 | 50.98 | 44.89 | 38.15 | 32.82 | a | 40.33 | ||||||||||||
1987 | 29.23 | 30.45 | 34.27 | 35.17 | 38.83 | a | 42.31 | a | 45.60 | 47.23 | 47.10 | 42.56 | 35.83 | 31.33 | b | 38.33 | ||||||||||
1988 | 28.66 | b | 28.76 | 29.82 | 33.47 | a | 38.10 | a | 42.43 | 46.68 | 49.63 | 50.48 | 44.10 | 35.65 | 32.15 | 38.33 | ||||||||||
1989 | 30.26 | 32.64 | 33.92 | 36.87 | 39.60 | 42.80 | 48.50 | ----- | z | 48.42 | 44.45 | a | 37.63 | 35.50 | 39.14 | a | ||||||||||
1990 | 30.94 | 29.56 | a | 33.73 | 37.43 | 40.30 | a | 43.48 | 48.92 | 50.69 | 47.28 | a | 43.67 | a | 40.43 | b | 37.20 | a | 40.30 | |||||||
1991 | 33.34 | 32.50 | b | 34.13 | 37.00 | 39.87 | 45.40 | 47.84 | 49.40 | 49.03 | 45.02 | 38.78 | 31.64 | c | 40.33 | |||||||||||
1992 | 29.52 | a | 32.43 | b | 31.44 | ----- | z | ----- | z | 44.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | 35.71 | d | 33.03 | a | 34.35 | f | |
1993 | ----- | z | 34.71 | ----- | z | 34.45 | 39.53 | 44.78 | 48.71 | 51.55 | 48.48 | 43.08 | 36.37 | 29.24 | b | 41.09 | b | |||||||||
1994 | 31.77 | 33.91 | 30.90 | a | 35.45 | a | 38.21 | 42.58 | 46.08 | ----- | z | 47.53 | 43.14 | b | 37.95 | 30.71 | 38.02 | a | ||||||||
1995 | 28.43 | a | 31.34 | 34.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.38 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 31.03 | 30.81 | 31.97 | 35.05 | 38.45 | 42.29 | 46.61 | 49.40 | 47.84 | 42.29 | 36.17 | 32.53 | 38.64 | |||||||||||||
S.D. | 1.72 | 1.95 | 1.65 | 1.18 | 0.91 | 1.15 | 1.36 | 1.59 | 1.33 | 1.45 | 1.69 | 1.74 | 0.77 | |||||||||||||
SKEW | 0.18 | 0.11 | -0.66 | 0.37 | -0.14 | 0.21 | 0.08 | 0.22 | -0.04 | 0.29 | 0.13 | 0.15 | 0.45 | |||||||||||||
MAX | 35.81 | 34.71 | 34.35 | 37.43 | 40.30 | 45.40 | 49.37 | 52.79 | 50.98 | 45.02 | 40.43 | 37.20 | 40.33 | |||||||||||||
MIN | 25.98 | 27.27 | 27.56 | 32.97 | 36.58 | 39.37 | 44.07 | 46.05 | 44.68 | 39.52 | 32.82 | 29.02 | 37.37 | |||||||||||||
YRS | 45 | 46 | 45 | 44 | 44 | 45 | 45 | 43 | 46 | 46 | 46 | 46 | 38 |