YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.56 | 31.56 | k | |
1947 | 26.79 | c | 36.44 | d | 35.68 | a | 39.00 | 49.40 | e | 47.65 | c | 56.08 | f | 55.75 | e | 53.45 | 41.87 | 32.42 | 29.95 | b | 40.76 | a | ||||
1948 | 27.08 | g | 25.13 | f | 28.18 | a | 33.32 | b | 44.36 | c | ----- | z | 55.89 | d | 54.42 | a | 49.55 | a | 42.11 | 29.91 | a | 20.22 | a | 39.77 | c | |
1949 | 17.56 | 25.32 | 29.75 | a | 38.76 | c | 43.27 | g | 48.76 | k | ----- | z | ----- | z | 50.02 | d | 37.50 | 39.14 | a | 22.71 | 32.60 | d | ||||
1950 | 14.44 | 26.54 | a | 27.42 | a | 33.47 | 40.48 | a | 46.85 | t | 59.33 | v | ----- | z | ----- | z | 40.04 | e | 35.21 | b | 35.00 | 31.57 | d | |||
1951 | 23.63 | a | 30.22 | a | 35.45 | a | 41.43 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.50 | r | 33.55 | 26.37 | a | 31.78 | f | ||
1952 | 25.31 | 29.71 | a | 29.42 | 40.76 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.30 | h | ||
1953 | 34.12 | c | 32.85 | b | 29.58 | a | 35.69 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.18 | i |
1954 | 26.38 | b | 39.45 | f | 34.18 | n | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.17 | x | 42.47 | 38.60 | a | 28.92 | g | 35.82 | i | |
1955 | 29.98 | h | 26.17 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 26.17 | k |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | 34.09 | b | 45.12 | a | 49.24 | i | 52.28 | a | 57.08 | 55.66 | a | 42.63 | 33.69 | d | 33.39 | 44.24 | d | |||
1964 | 27.39 | 30.69 | 29.85 | 34.17 | 39.33 | b | 47.06 | n | 56.83 | a | 53.98 | a | 49.13 | 44.58 | 30.58 | 25.77 | 38.39 | a | ||||||||
1965 | 30.27 | a | 31.89 | 33.62 | a | 38.23 | 40.90 | 48.19 | n | 59.18 | a | 56.48 | a | 47.93 | a | 46.80 | a | 34.63 | c | 27.81 | b | 40.70 | a | |||
1966 | 28.30 | a | 28.27 | b | 32.98 | a | 38.78 | 44.40 | 48.59 | c | 54.81 | b | 58.98 | f | 52.55 | a | 43.60 | 36.12 | e | 30.74 | 39.92 | a | ||||
1967 | 29.75 | a | 32.52 | 29.23 | a | 31.00 | 42.18 | c | 48.77 | o | 59.93 | b | 63.79 | 57.13 | 42.73 | a | 34.62 | a | 27.10 | 40.91 | a | |||||
1968 | 27.75 | a | 32.64 | a | 34.47 | 34.45 | a | 43.32 | 49.74 | m | 61.62 | c | 54.58 | 51.47 | 40.60 | a | 32.70 | b | 25.33 | b | 39.90 | a | ||||
1969 | 22.47 | 26.12 | 32.81 | 35.73 | 46.34 | 54.50 | l | 57.37 | a | 56.05 | b | 51.20 | 38.39 | 36.52 | b | 30.55 | a | 39.41 | a | |||||||
1970 | 28.44 | 31.95 | 31.92 | 31.33 | 43.50 | 53.57 | 60.12 | a | 59.37 | d | 46.46 | b | 39.72 | a | 31.83 | 25.78 | b | 40.33 | ||||||||
1971 | 27.45 | 28.70 | 28.00 | 34.78 | 42.76 | b | ----- | z | 61.48 | c | 60.91 | d | 45.97 | a | 38.73 | 32.08 | 24.69 | 38.69 | a | |||||||
1972 | 24.13 | a | 30.84 | 35.10 | a | 32.36 | a | 44.31 | b | 49.62 | 60.19 | b | 59.39 | c | 47.17 | a | 40.69 | b | 33.64 | a | 23.23 | 40.06 | ||||
1973 | 24.91 | b | 31.02 | 30.48 | 37.37 | 47.93 | d | 49.37 | g | 59.13 | a | 55.48 | c | 51.00 | 40.43 | a | 29.53 | 31.06 | 39.85 | a | ||||||
1974 | 22.39 | 28.93 | 32.06 | 35.93 | 39.19 | b | 50.20 | j | 55.66 | 58.82 | a | 55.88 | 44.02 | a | 34.18 | b | 29.24 | 39.66 | a | |||||||
1975 | 29.10 | 27.21 | 28.81 | 30.93 | a | 41.29 | 47.89 | c | 59.23 | e | 53.13 | 55.53 | a | 40.07 | a | 30.36 | a | 31.44 | 39.58 | |||||||
1976 | 30.70 | a | 28.17 | 29.10 | 34.75 | 43.10 | a | 45.69 | a | 57.60 | a | 54.47 | a | 53.79 | b | 44.98 | f | 39.12 | 33.65 | 40.92 | a | |||||
1977 | 29.84 | 34.23 | 29.34 | 39.48 | g | 38.41 | c | 54.71 | d | 56.61 | c | 61.15 | 46.84 | a | 41.24 | h | 29.71 | d | 29.19 | 41.00 | b | |||||
1978 | 29.50 | 31.32 | 36.32 | 35.18 | 40.69 | 51.83 | d | 57.13 | d | 55.16 | b | 46.45 | a | 45.11 | 27.74 | e | 21.81 | 39.85 | ||||||||
1979 | 18.60 | 27.52 | a | 35.03 | 35.52 | 44.43 | a | 51.48 | c | 58.77 | c | 54.77 | e | 55.03 | 45.03 | a | 31.85 | 31.88 | b | 40.83 | ||||||
1980 | 25.03 | a | 31.59 | 30.32 | 38.15 | 40.40 | g | 46.90 | d | 59.02 | a | 54.72 | b | 52.24 | a | 45.26 | b | 37.27 | h | 35.27 | 41.85 | b | ||||
1981 | 31.29 | 30.86 | 33.73 | a | 36.37 | 41.54 | d | 48.79 | d | 57.70 | i | 61.73 | c | 50.81 | d | 41.76 | b | 35.63 | c | 28.68 | 40.11 | a | ||||
1982 | 25.26 | 26.02 | a | 29.86 | c | 32.75 | 41.24 | 49.97 | 55.97 | a | 56.66 | c | 47.48 | f | 39.07 | c | 29.10 | a | 26.93 | c | 37.53 | a | ||||
1983 | 30.16 | b | 31.00 | 33.91 | b | 34.91 | a | 44.48 | 47.33 | g | 51.74 | d | 58.09 | d | 48.52 | d | 43.45 | b | 32.72 | g | 21.50 | 39.78 | b | |||
1984 | 29.61 | 31.16 | 34.13 | a | 33.54 | g | 39.90 | a | 46.09 | a | 59.65 | d | 58.75 | a | 47.00 | f | 35.96 | d | 29.34 | b | 24.28 | d | 38.89 | b | ||
1985 | 25.77 | 25.91 | a | 30.26 | 38.70 | 41.73 | 52.39 | b | 62.93 | b | 54.79 | c | 44.69 | a | ----- | z | ----- | z | ----- | z | 41.91 | c | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.43 | 29.86 | 31.61 | 35.64 | 42.81 | 49.65 | 57.96 | 57.06 | 50.77 | 41.70 | 33.15 | 28.04 | 40.13 | |||||||||||||
S.D. | 4.34 | 2.78 | 2.67 | 2.88 | 2.70 | 2.80 | 2.79 | 2.85 | 3.59 | 2.70 | 3.18 | 4.18 | 0.48 | |||||||||||||
SKEW | -0.95 | 0.13 | 0.22 | 0.20 | 0.55 | 0.30 | -0.50 | 0.72 | 0.10 | -0.13 | 0.31 | -0.08 | 0.41 | |||||||||||||
MAX | 34.12 | 36.44 | 36.32 | 41.43 | 49.40 | 54.71 | 62.93 | 63.79 | 57.13 | 46.80 | 39.14 | 35.27 | 40.83 | |||||||||||||
MIN | 14.44 | 25.32 | 27.42 | 30.93 | 38.41 | 45.69 | 51.74 | 53.13 | 44.69 | 35.96 | 27.74 | 20.22 | 39.58 | |||||||||||||
YRS | 29 | 29 | 29 | 27 | 25 | 14 | 23 | 24 | 24 | 25 | 26 | 28 | 5 |