YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1939 | ----- | z | 17.14 | 25.87 | 30.43 | 34.52 | 36.90 | a | 44.94 | 46.84 | 41.47 | 35.26 | 30.60 | 26.10 | b | 33.64 | a | |||||||||
1940 | 19.36 | c | 23.78 | b | 28.61 | c | 30.90 | a | 36.68 | 41.57 | 45.23 | 46.19 | 44.43 | 36.68 | ----- | z | ----- | z | 35.34 | b | ||||||
1941 | 23.53 | p | 23.61 | 29.10 | 30.93 | 34.55 | 39.70 | 48.39 | 45.39 | 37.97 | a | 33.03 | 27.77 | 19.90 | 33.67 | a | ||||||||||
1942 | 13.61 | 18.64 | 22.15 | d | 30.24 | a | 32.97 | a | 38.62 | a | 46.48 | 45.79 | c | 40.50 | 33.67 | a | 21.73 | 21.29 | 30.47 | |||||||
1943 | 10.33 | a | 21.61 | j | 19.35 | 29.87 | 30.39 | 34.69 | d | 42.77 | 41.71 | 39.87 | 43.70 | u | 27.71 | f | 19.23 | 29.80 | c | |||||||
1944 | 17.00 | 18.24 | 20.86 | b | 28.77 | ----- | z | 40.28 | e | 43.71 | 41.58 | 41.96 | g | 37.19 | o | 24.72 | a | 17.10 | 28.03 | c | ||||||
1945 | 20.19 | 21.85 | b | 20.70 | a | 25.03 | 34.00 | w | 37.33 | f | 42.18 | c | 44.96 | g | 37.27 | 40.30 | u | ----- | z | ----- | z | 27.87 | f | |||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | 18.60 | r | 26.04 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 23.30 | h | 26.04 | k |
1948 | ----- | z | 14.62 | 17.11 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 15.86 | j | |
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 | 24.07 | 25.67 | a | 24.87 | j | |
1951 | 16.35 | 19.14 | 19.52 | 29.93 | 33.24 | f | 41.75 | r | 43.25 | o | 42.18 | i | 41.89 | b | 33.06 | 23.85 | c | 17.23 | 25.12 | d | ||||||
1952 | 13.94 | 20.00 | 22.55 | 28.73 | 32.61 | h | 36.83 | 44.17 | a | 44.50 | e | 42.85 | d | 40.28 | b | 25.18 | b | 22.16 | 31.02 | a | ||||||
1953 | 27.90 | 23.85 | a | 24.14 | b | 27.67 | f | 32.82 | i | 35.70 | j | 42.72 | b | 45.43 | c | 41.21 | a | 36.28 | b | 28.21 | b | 25.97 | b | 32.86 | c | |
1954 | 15.97 | a | 23.73 | b | 20.14 | b | 25.77 | d | 33.27 | e | 34.80 | t | 38.76 | f | 43.19 | d | 40.71 | f | 33.04 | e | 32.20 | e | 21.57 | c | 27.65 | c |
1955 | 21.31 | e | 17.86 | f | 17.81 | d | 24.37 | c | 30.55 | i | 37.56 | e | 40.75 | g | 43.40 | p | 38.05 | j | 33.13 | h | 12.56 | l | ----- | z | 25.26 | h |
1956 | 17.97 | 14.57 | a | 21.42 | 30.52 | g | ----- | z | ----- | z | ----- | z | ----- | z | 42.00 | f | 32.62 | g | 23.93 | b | 22.58 | 20.09 | g | |||
1957 | 9.19 | 19.19 | a | 24.77 | 30.87 | 38.48 | 41.23 | 43.77 | 43.10 | 45.00 | 32.45 | 26.73 | 24.74 | 31.63 | ||||||||||||
1958 | 22.65 | 27.50 | 22.81 | 28.90 | 38.97 | 46.63 | 51.52 | 48.50 | a | 39.73 | 36.77 | 22.07 | 23.83 | a | 34.16 | |||||||||||
1959 | 17.77 | a | 20.26 | a | 22.97 | 28.93 | 33.00 | 40.47 | 46.55 | b | 44.13 | a | 37.62 | n | 34.39 | 23.97 | 20.94 | 30.31 | a | |||||||
1960 | 17.32 | 20.31 | 23.03 | 29.10 | 32.61 | 39.37 | 47.10 | 44.94 | 40.37 | 35.74 | 25.53 | 19.10 | 31.21 | |||||||||||||
1961 | 21.58 | 24.82 | 24.13 | 28.00 | 34.35 | 43.03 | 47.52 | 49.61 | 38.13 | 31.65 | 20.93 | 19.87 | 31.97 | |||||||||||||
1962 | 18.48 | 21.46 | 20.52 | 29.77 | 32.31 | b | 38.48 | a | 44.46 | c | 44.50 | c | 40.04 | d | 34.89 | c | 27.00 | a | 24.39 | 31.36 | ||||||
1963 | 14.90 | a | 29.26 | a | 24.13 | 27.62 | a | 33.87 | 41.13 | 42.81 | 46.42 | 43.38 | a | 35.61 | 26.10 | 20.69 | b | 32.16 | ||||||||
1964 | 21.74 | 21.03 | 22.71 | 24.50 | 31.10 | a | 38.00 | 43.77 | 42.21 | b | 37.03 | a | 33.68 | 24.04 | b | 14.00 | a | 29.48 | ||||||||
1965 | 21.93 | b | 22.19 | a | 22.87 | 30.20 | 33.13 | 39.52 | a | 48.00 | a | 46.14 | c | 39.07 | 36.45 | 30.17 | 19.68 | 32.44 | ||||||||
1966 | 20.67 | a | 22.78 | a | 24.03 | a | 30.31 | a | 32.64 | c | 38.63 | 44.07 | a | 45.58 | 43.13 | 32.58 | 27.33 | 25.70 | a | 32.29 | ||||||
1967 | 24.52 | 23.18 | 20.55 | 25.55 | a | 33.45 | 41.83 | 46.29 | 48.77 | 44.41 | a | 33.23 | 26.93 | 20.90 | 32.47 | |||||||||||
1968 | 19.29 | 25.57 | a | 26.87 | 26.03 | 34.19 | 39.83 | 46.80 | a | 44.32 | ----- | z | ----- | z | 24.80 | o | 12.78 | d | 30.63 | c | ||||||
1969 | 7.39 | 18.44 | a | 24.93 | a | 28.03 | 35.97 | b | 51.87 | 50.93 | a | 55.86 | b | 46.07 | ----- | z | 24.00 | n | 21.29 | 34.08 | b | |||||
1970 | 17.33 | a | 25.68 | 24.90 | 28.37 | 33.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 18.73 | o | 17.40 | a | 24.47 | f | ||||
1971 | 18.72 | b | 22.96 | 18.10 | 23.89 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.87 | 15.81 | 20.29 | g | ||||
1972 | 14.87 | a | 19.00 | 24.45 | 22.21 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.50 | l | 15.23 | 19.15 | g | |||
1973 | 16.32 | 23.36 | 25.03 | 28.10 | a | 33.94 | 38.73 | 44.04 | c | 43.00 | f | 40.83 | 32.07 | c | 19.33 | c | 23.70 | a | 29.59 | a | ||||||
1974 | 14.19 | 22.11 | a | 22.35 | 28.20 | 30.16 | 37.74 | c | 42.03 | 45.81 | d | 43.89 | b | 35.19 | 26.83 | 22.87 | a | 30.95 | ||||||||
1975 | 17.81 | 16.86 | 19.43 | a | 23.33 | 31.29 | 36.39 | b | 46.63 | a | 42.15 | e | 41.77 | 32.21 | b | 23.10 | 20.20 | a | 29.26 | |||||||
1976 | 21.70 | a | 20.24 | 19.69 | b | 26.50 | d | 31.83 | a | 34.28 | a | 41.77 | a | 44.81 | 44.07 | 34.71 | 28.72 | a | 25.73 | a | 31.17 | |||||
1977 | 17.80 | a | 24.56 | a | 23.27 | a | 30.17 | a | 31.61 | 41.90 | 43.07 | b | 50.93 | b | 37.86 | b | 32.08 | g | 21.11 | b | 19.97 | a | 31.11 | a | ||
1978 | 21.33 | a | 23.11 | 27.42 | 27.14 | i | 33.14 | i | 42.35 | d | 46.26 | d | 45.27 | i | 39.50 | d | 35.27 | a | 21.32 | b | 13.26 | d | 29.98 | c | ||
1979 | 9.65 | 19.30 | a | 26.26 | 28.83 | a | 34.83 | h | 39.62 | d | 45.63 | a | 46.93 | d | 43.68 | e | 37.76 | f | 22.77 | h | 24.23 | a | 31.57 | c | ||
1980 | 13.13 | 20.48 | 24.19 | 30.70 | 35.39 | 38.31 | d | 45.48 | b | 44.40 | k | 39.95 | i | 34.41 | b | 27.32 | k | 25.08 | e | 29.69 | c | |||||
1981 | 26.32 | 23.18 | 27.52 | 27.97 | a | 32.05 | k | 37.30 | 44.33 | d | 49.38 | e | 41.43 | b | 33.36 | c | 29.96 | e | 21.19 | 32.90 | a | |||||
1982 | 19.40 | a | 19.46 | b | 22.63 | a | 24.27 | 32.85 | e | 41.90 | a | 44.85 | d | 47.00 | n | 41.08 | e | 32.55 | i | 20.31 | n | 21.75 | k | 30.80 | d | |
1983 | 25.33 | a | 25.28 | c | 28.94 | 29.89 | b | 36.00 | d | 41.08 | f | 44.18 | n | 47.19 | e | 36.55 | j | 33.34 | b | 27.42 | k | 11.72 | b | 29.71 | d | |
1984 | 22.83 | a | 24.74 | b | 28.40 | a | 27.20 | 31.57 | c | 36.50 | h | 46.59 | i | 44.70 | d | 37.56 | e | 28.58 | e | 24.52 | c | 14.68 | c | 28.48 | b | |
1985 | 16.17 | a | 17.26 | a | 22.71 | 29.68 | e | 34.32 | 39.17 | f | 49.20 | p | 44.00 | g | 37.20 | 31.31 | b | 11.46 | f | 17.04 | d | 25.71 | d | |||
1986 | ----- | z | 20.65 | b | 29.15 | d | 26.33 | i | 32.77 | e | 41.70 | c | 41.48 | j | 46.55 | t | 38.00 | a | 37.57 | c | 26.72 | e | 18.22 | d | 30.60 | d |
1987 | 19.19 | 23.81 | b | 26.45 | 30.69 | a | 36.04 | e | 40.48 | e | 46.26 | d | 44.90 | a | 43.72 | l | 38.00 | b | 30.62 | f | 17.47 | a | 32.33 | b | ||
1988 | 18.71 | 23.41 | b | 25.33 | a | 29.38 | a | 33.04 | d | 38.52 | a | 45.81 | j | 44.43 | j | 37.00 | n | 40.38 | b | 26.17 | f | 21.93 | a | 28.84 | d | |
1989 | 21.63 | a | 13.23 | b | 22.13 | 31.43 | 34.77 | e | 40.84 | e | 44.22 | d | 46.00 | c | 41.80 | e | 32.57 | c | 26.38 | n | 23.78 | h | 32.86 | b | ||
1990 | 23.21 | c | 18.64 | c | 26.55 | 33.14 | b | 33.96 | h | 39.81 | d | 49.14 | q | 49.84 | f | 44.89 | k | 31.88 | g | 25.71 | p | 13.76 | b | 25.85 | f | |
1991 | 19.40 | a | 29.35 | b | 23.10 | a | 28.48 | e | 33.92 | e | 38.78 | c | 47.59 | i | 49.15 | d | 43.00 | k | 33.30 | d | 27.42 | k | 24.82 | c | 31.14 | c |
1992 | 22.94 | 27.11 | b | 30.70 | h | 32.73 | d | 38.65 | e | 47.00 | i | 48.00 | h | 47.29 | n | 39.71 | f | 34.57 | h | 26.94 | m | 19.03 | a | 28.09 | g | |
1993 | 14.03 | b | 19.23 | b | 25.57 | a | 29.76 | a | 40.68 | f | 40.48 | c | 42.69 | r | 47.48 | d | 41.70 | j | 39.70 | h | 25.72 | l | 21.36 | i | 29.43 | f |
1994 | 28.55 | 19.54 | b | 28.52 | b | 32.33 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.53 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.58 | 21.55 | 23.69 | 28.53 | 33.83 | 39.88 | 45.26 | 46.00 | 40.98 | 34.44 | 25.50 | 20.22 | 31.50 | |||||||||||||
S.D. | 4.64 | 3.55 | 3.10 | 2.44 | 2.16 | 3.08 | 2.32 | 2.89 | 2.55 | 2.47 | 3.10 | 3.96 | 1.27 | |||||||||||||
SKEW | -0.20 | -0.03 | -0.06 | -0.68 | 0.70 | 1.55 | 0.82 | 1.13 | 0.10 | 0.44 | 0.10 | -0.35 | 0.02 | |||||||||||||
MAX | 28.55 | 29.35 | 29.15 | 33.14 | 38.97 | 51.87 | 51.52 | 55.86 | 46.07 | 40.38 | 32.20 | 26.10 | 34.16 | |||||||||||||
MIN | 7.39 | 13.23 | 17.11 | 22.21 | 30.16 | 34.28 | 41.77 | 41.58 | 37.03 | 28.58 | 19.33 | 11.72 | 29.26 | |||||||||||||
YRS | 48 | 50 | 52 | 45 | 36 | 38 | 34 | 34 | 33 | 34 | 31 | 45 | 14 |