YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.26 | 63.67 | 50.87 | 28.88 | 25.44 | 48.42 | g | |||||
1939 | 17.37 | 11.75 | 34.90 | 50.35 | 60.17 | b | 67.32 | b | 75.90 | 73.40 | 62.44 | d | 49.76 | 38.38 | 29.74 | 47.63 | ||||||||||
1940 | 17.68 | 23.74 | 42.29 | 50.78 | 62.32 | 71.98 | 76.74 | 73.80 | a | 62.97 | 50.85 | 30.63 | 22.06 | 48.82 | ||||||||||||
1941 | 14.64 | b | 24.20 | 38.55 | a | 43.18 | 59.59 | b | 64.68 | 72.84 | 70.57 | a | 57.75 | 46.36 | i | 36.47 | 23.50 | a | 46.00 | a | ||||||
1942 | 16.94 | 20.50 | 34.15 | 49.32 | 54.84 | 64.10 | 72.97 | 72.71 | 62.57 | 50.98 | 35.72 | 28.35 | 46.93 | |||||||||||||
1943 | 26.73 | 31.54 | 37.85 | 56.70 | 63.50 | c | 68.92 | d | 77.00 | a | 73.50 | 63.35 | 49.24 | 32.09 | b | 22.45 | b | 50.24 | ||||||||
1944 | 9.75 | e | 19.85 | b | 33.41 | b | 44.07 | b | 57.14 | c | 65.50 | v | 72.94 | 70.34 | 61.75 | 50.42 | a | 34.66 | a | 24.90 | 43.57 | a | ||||
1945 | 26.68 | a | 30.39 | a | 35.12 | a | 44.13 | 60.90 | 63.07 | 75.87 | 74.44 | 64.65 | c | 55.77 | 38.83 | g | 24.53 | 50.50 | a | |||||||
1946 | 24.39 | 31.04 | 39.71 | 54.74 | a | 59.10 | 69.86 | b | 77.47 | 74.33 | b | 65.02 | 48.63 | d | 33.81 | a | 32.08 | 50.85 | ||||||||
1947 | 19.02 | a | 34.15 | b | 42.58 | 49.59 | b | 64.17 | a | 63.71 | a | 75.92 | 73.56 | 66.13 | 55.48 | c | 31.45 | 18.11 | d | 49.49 | ||||||
1948 | 16.52 | 19.24 | 29.24 | b | 53.43 | a | 62.50 | d | 69.00 | 76.42 | a | 73.92 | 68.45 | 52.16 | 33.25 | 25.98 | a | 48.34 | ||||||||
1949 | 5.69 | 13.87 | a | 35.60 | 55.67 | 60.02 | 68.30 | 76.03 | 74.28 | a | 67.17 | 48.61 | 42.83 | 21.44 | 47.46 | |||||||||||
1950 | 13.81 | 20.54 | 38.65 | 51.77 | 56.02 | 67.37 | 72.76 | 72.32 | a | 63.28 | 56.48 | 37.82 | 30.13 | 48.41 | ||||||||||||
1951 | 21.79 | 29.93 | 38.95 | ----- | z | 58.50 | 65.83 | 75.85 | 72.35 | a | 65.20 | 51.42 | 32.35 | 22.15 | 48.57 | a | ||||||||||
1952 | 12.88 | a | 16.57 | 28.24 | 48.20 | 59.42 | 68.62 | 73.15 | 70.34 | 65.42 | 57.69 | m | 31.75 | 23.77 | 45.30 | a | ||||||||||
1953 | 25.50 | 28.29 | 42.08 | 46.62 | 54.31 | 70.12 | 78.00 | 70.73 | 67.20 | 52.77 | 40.93 | 26.23 | 50.23 | |||||||||||||
1954 | 27.17 | a | 38.73 | 38.61 | 53.22 | 62.03 | 66.88 | 76.90 | 72.71 | 65.80 | 53.29 | 41.37 | 17.56 | 51.19 | ||||||||||||
1955 | 14.82 | 13.23 | 32.37 | 46.38 | 58.10 | 66.60 | 76.18 | t | 73.53 | 66.37 | 53.90 | 32.53 | 32.98 | 44.62 | a | |||||||||||
1956 | 32.27 | 25.03 | 37.84 | 49.38 | 61.74 | 69.00 | 73.19 | 70.18 | 64.92 | 50.23 | 34.93 | 21.34 | 49.17 | |||||||||||||
1957 | 18.31 | 27.22 | a | 43.53 | 49.50 | 55.98 | 64.90 | 71.76 | 68.52 | 59.93 | 51.15 | 35.55 | 34.39 | 48.39 | ||||||||||||
1958 | 25.18 | 32.59 | 35.53 | 44.47 | 60.58 | 67.53 | 71.77 | 73.73 | 64.47 | 53.90 | 38.97 | 36.69 | 50.45 | |||||||||||||
1959 | 27.79 | 29.36 | 38.48 | 51.65 | 57.60 | 69.90 | 75.24 | 72.87 | 61.45 | 49.48 | 39.42 | 30.60 | p | 52.11 | a | |||||||||||
1960 | 16.60 | 20.79 | 38.67 | a | 50.07 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.53 | h | ||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 70.77 | q | 75.60 | a | 67.20 | c | 63.54 | f | 49.30 | d | 40.38 | e | 14.94 | e | 49.48 | g |
1967 | 15.48 | f | 25.61 | f | 40.70 | d | 48.52 | g | 56.04 | f | 61.63 | d | 74.26 | h | 73.59 | d | 62.72 | e | 53.58 | f | 39.54 | f | 15.74 | f | 59.66 | h |
1968 | 11.90 | e | 25.67 | e | 40.42 | g | 43.13 | d | 54.90 | g | 68.66 | e | 74.06 | e | 67.04 | f | ----- | z | ----- | z | ----- | z | 22.00 | h | 44.68 | g |
1969 | 25.14 | i | 25.02 | h | 26.93 | j | 51.45 | i | 63.40 | e | 63.52 | h | 74.82 | l | 75.50 | g | 64.37 | g | 43.30 | f | 35.98 | i | 27.94 | g | 63.40 | k |
1970 | 20.35 | g | 34.62 | d | 35.92 | e | 42.46 | e | 58.46 | g | 64.80 | g | 72.67 | h | 74.42 | e | 58.83 | f | 44.44 | g | 36.02 | h | 24.08 | e | 42.30 | g |
1971 | 22.12 | j | 31.55 | g | 36.09 | h | 47.97 | l | 55.21 | g | 67.26 | g | 75.72 | f | 75.24 | h | 57.84 | k | 51.92 | r | 25.59 | g | 16.26 | j | ----- | z |
1972 | 24.17 | e | 32.43 | h | 46.37 | h | 47.56 | m | 56.83 | k | 67.68 | s | 74.21 | x | 71.07 | p | 60.00 | v | ----- | z | ----- | z | ----- | z | 24.17 | k |
1973 | 4.95 | k | 14.03 | j | 34.27 | k | 43.60 | j | 56.66 | i | 65.95 | i | 72.22 | m | 70.43 | j | 56.57 | o | 48.56 | o | 29.07 | o | 18.28 | m | ----- | z |
1974 | 10.47 | k | 19.47 | j | 41.50 | i | 47.41 | m | 62.25 | k | 71.17 | 73.50 | c | 71.94 | 64.00 | 52.75 | c | 37.72 | 23.05 | a | 56.30 | e | ||||
1975 | 20.97 | a | 26.73 | b | 38.00 | 43.38 | 54.60 | b | 64.15 | 75.34 | b | 70.88 | a | 63.90 | 51.26 | b | 34.86 | a | 21.81 | 47.16 | ||||||
1976 | 18.92 | a | 31.07 | a | 34.81 | 50.58 | 60.23 | 66.61 | b | 77.35 | a | 72.15 | 64.62 | a | 48.98 | 38.33 | 26.39 | 49.17 | ||||||||
1977 | 25.05 | 33.75 | 35.81 | 52.25 | 57.03 | 74.15 | 74.56 | 73.29 | b | 64.64 | a | 52.52 | b | 37.10 | a | 30.24 | 50.87 | |||||||||
1978 | 22.50 | 24.52 | a | 41.03 | a | 49.28 | 55.69 | 69.19 | a | 75.42 | 70.97 | 62.52 | 53.02 | f | 29.69 | a | 10.03 | a | 46.44 | a | ||||||
1979 | 6.90 | b | 17.83 | a | 33.77 | a | 48.52 | 57.74 | 67.73 | 74.11 | 70.97 | 67.03 | 52.30 | d | 30.03 | 23.03 | a | 45.83 | ||||||||
1980 | 23.52 | d | 25.64 | 36.38 | a | 47.55 | 56.15 | 69.60 | 76.23 | 71.66 | 63.37 | 50.29 | 37.21 | a | 33.95 | 49.29 | ||||||||||
1981 | 31.32 | 33.82 | c | 40.53 | 53.43 | a | 57.73 | a | 70.70 | 75.74 | 73.42 | a | 66.52 | 48.32 | a | 37.89 | b | 28.63 | 51.50 | |||||||
1982 | 21.05 | a | 26.88 | b | 38.58 | 43.25 | 56.28 | a | 65.88 | b | 75.00 | a | 74.05 | 61.70 | b | 45.71 | c | 33.67 | c | 25.50 | c | 47.30 | ||||
1983 | 21.77 | a | 27.94 | c | 39.00 | a | 44.64 | a | 53.71 | 64.54 | g | 75.27 | g | 76.86 | b | 67.37 | c | 53.44 | e | 36.52 | b | 18.52 | h | 46.81 | c | |
1984 | 6.86 | c | 13.34 | g | 32.95 | a | 45.36 | a | 60.23 | 65.67 | 75.39 | 73.44 | 64.20 | 45.77 | 34.23 | 20.13 | a | 47.66 | a | |||||||
1985 | 10.40 | 12.39 | 32.35 | 52.75 | 61.60 | b | 70.64 | b | 76.30 | a | 74.31 | 59.15 | 51.88 | n | 37.17 | a | 17.86 | b | 45.90 | a | ||||||
1986 | 19.57 | a | 34.50 | 44.50 | 47.08 | 56.03 | a | 71.33 | l | 72.32 | c | 74.34 | 59.88 | a | 47.81 | 37.82 | b | 28.24 | 47.46 | a | ||||||
1987 | 20.89 | i | 32.02 | e | 35.55 | b | 51.12 | 58.90 | b | 72.07 | a | 74.02 | b | 71.07 | a | 63.90 | o | 51.77 | i | 36.13 | 23.17 | b | 50.45 | c | ||
1988 | 10.85 | 20.93 | 33.69 | 47.74 | c | 57.86 | b | 70.82 | 76.16 | 72.77 | 60.40 | a | 57.00 | p | 36.53 | 21.10 | e | 46.26 | a | |||||||
1989 | 13.75 | a | 17.29 | b | 40.03 | 53.19 | a | 58.25 | a | 64.92 | 76.50 | 70.09 | b | 60.86 | a | 50.23 | a | 37.25 | 24.79 | 47.26 | ||||||
1990 | 23.90 | 22.70 | 39.38 | a | 51.41 | a | 54.32 | 67.43 | 72.08 | a | 70.56 | 63.46 | e | 51.48 | 32.57 | a | 12.05 | a | 46.78 | |||||||
1991 | 10.29 | 24.68 | 35.32 | 43.34 | a | 55.05 | 65.05 | 69.59 | o | 70.11 | l | 60.92 | 49.18 | f | 30.23 | 21.17 | m | 40.61 | d | |||||||
1992 | 10.08 | m | 27.07 | 41.10 | 51.73 | 59.53 | a | 64.19 | c | 67.78 | h | 68.95 | 60.67 | a | 50.55 | 28.85 | 14.27 | e | 46.69 | b | ||||||
1993 | 14.11 | 16.54 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 14.11 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.76 | 25.43 | 37.28 | 48.91 | 58.57 | 67.64 | 74.96 | 72.38 | 63.61 | 51.03 | 35.32 | 24.18 | 48.82 | |||||||||||||
S.D. | 6.78 | 6.81 | 3.67 | 3.89 | 2.82 | 2.83 | 1.74 | 1.91 | 2.49 | 2.50 | 3.56 | 5.96 | 1.61 | |||||||||||||
SKEW | -0.06 | -0.27 | -0.28 | -0.05 | 0.14 | 0.03 | -0.33 | -0.50 | -0.21 | 0.08 | -0.06 | -0.16 | 0.03 | |||||||||||||
MAX | 32.27 | 38.73 | 44.50 | 56.70 | 64.17 | 74.15 | 78.00 | 76.86 | 68.45 | 56.48 | 42.83 | 36.69 | 51.50 | |||||||||||||
MIN | 5.69 | 11.75 | 28.24 | 42.46 | 53.71 | 61.63 | 71.76 | 67.20 | 57.75 | 45.71 | 28.85 | 10.03 | 45.83 | |||||||||||||
YRS | 41 | 41 | 42 | 41 | 40 | 39 | 38 | 43 | 41 | 35 | 41 | 40 | 23 |