YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.58 | 49.53 | 36.87 | 16.37 | 13.42 | 34.75 | g | |||||
1939 | 5.06 | -1.82 | 21.81 | 35.57 | 44.59 | b | 50.86 | a | 59.13 | 57.23 | 49.53 | 35.03 | 23.87 | 16.90 | 33.15 | |||||||||||
1940 | 7.61 | 12.41 | 29.94 | 38.53 | 47.00 | 54.70 | 59.97 | 57.30 | a | 49.73 | 37.84 | 20.87 | 12.55 | 35.70 | ||||||||||||
1941 | 3.55 | b | 13.75 | 26.90 | 30.50 | 44.03 | a | 49.87 | 55.90 | 55.77 | 43.13 | 32.29 | 23.30 | 10.37 | a | 32.45 | ||||||||||
1942 | 5.03 | 7.68 | 21.32 | 35.40 | 39.16 | 43.80 | 53.42 | 55.61 | 44.73 | 36.81 | 22.93 | 16.26 | 31.85 | |||||||||||||
1943 | 14.29 | 17.68 | 23.13 | 38.63 | 48.43 | a | 53.26 | c | 58.47 | a | 56.39 | 43.10 | 30.55 | 14.14 | b | 10.00 | b | 34.01 | ||||||||
1944 | -2.50 | e | 10.64 | a | 23.86 | b | 34.18 | b | 44.21 | c | 53.00 | v | 54.48 | 49.26 | 39.87 | 31.87 | 18.24 | a | 6.48 | 28.24 | a | |||||
1945 | 8.74 | 13.75 | 18.32 | 28.07 | 43.06 | 45.13 | 58.81 | 58.94 | 44.68 | b | 37.52 | 22.67 | 9.26 | 32.41 | ||||||||||||
1946 | 8.26 | 16.32 | 24.26 | 36.40 | 41.19 | 48.73 | 58.87 | 57.17 | a | 46.57 | 36.52 | 26.13 | 22.23 | 35.22 | ||||||||||||
1947 | 7.43 | a | 22.74 | a | 29.55 | 33.31 | a | 46.57 | a | 47.93 | 56.87 | 56.23 | 46.80 | 41.42 | 21.03 | 8.82 | c | 34.89 | ||||||||
1948 | 5.42 | 8.21 | 19.10 | a | 35.76 | a | 45.59 | d | 50.77 | 57.27 | a | 56.94 | 50.70 | 35.94 | 20.13 | 15.45 | 33.44 | |||||||||
1949 | -5.87 | 1.46 | 25.74 | 38.67 | 44.45 | 51.87 | 58.29 | 56.57 | a | 49.67 | 35.16 | 28.20 | 9.94 | 32.85 | ||||||||||||
1950 | 0.23 | 8.61 | 25.35 | 34.90 | 39.42 | 47.10 | 56.81 | 54.67 | a | 48.23 | 39.84 | 26.17 | 21.35 | 33.56 | ||||||||||||
1951 | 8.74 | 15.75 | 23.48 | ----- | z | 41.58 | 47.67 | 56.97 | 55.27 | a | 45.77 | 36.06 | 20.63 | 12.35 | 33.12 | a | ||||||||||
1952 | 0.32 | 4.86 | 18.03 | 33.37 | 42.39 | 49.83 | 54.68 | 54.55 | 48.37 | 37.65 | 19.83 | 13.23 | 31.43 | |||||||||||||
1953 | 13.87 | 17.46 | 27.97 | 33.10 | 38.87 | 51.73 | 60.74 | 51.71 | 47.53 | 36.58 | 28.80 | 15.39 | 35.31 | |||||||||||||
1954 | 16.73 | a | 24.96 | 24.81 | 35.03 | 45.90 | 49.13 | 58.26 | 55.48 | 48.57 | 36.52 | 27.57 | 6.29 | 35.77 | ||||||||||||
1955 | 3.16 | 1.04 | 20.13 | 32.40 | 40.74 | 47.70 | 58.18 | t | 56.06 | 47.47 | 37.39 | 20.43 | 22.74 | 29.93 | a | |||||||||||
1956 | 23.13 | 14.69 | 25.58 | 35.83 | 45.90 | 49.23 | 54.00 | 49.84 | 43.63 | 36.55 | 25.47 | 11.48 | 34.61 | |||||||||||||
1957 | 9.45 | 16.78 | a | 33.19 | 38.93 | 44.48 | 48.50 | 52.65 | 49.03 | 43.43 | 36.52 | 23.70 | 19.90 | 34.71 | ||||||||||||
1958 | 8.06 | 19.04 | 25.32 | 34.63 | 43.87 | 46.70 | 50.10 | 54.19 | 45.87 | 34.77 | 24.27 | 24.74 | 34.30 | |||||||||||||
1959 | 15.74 | 17.36 | 24.87 | 36.87 | 42.74 | 51.67 | 57.32 | 55.42 | 44.73 | 36.81 | 23.53 | 14.93 | p | 37.01 | a | |||||||||||
1960 | 4.97 | 7.66 | 27.71 | 36.33 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.17 | 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 | 52.31 | q | 57.70 | a | 43.29 | c | 45.25 | f | 33.63 | d | 26.92 | e | 4.12 | e | 33.13 | g |
1967 | 3.52 | f | 12.64 | f | 26.56 | d | 34.13 | g | 40.28 | f | 46.96 | d | 57.29 | g | 55.67 | d | 45.52 | e | 36.16 | f | 25.46 | f | 4.52 | f | 43.68 | h |
1968 | -0.73 | e | 14.21 | e | 25.79 | g | 29.69 | d | 39.27 | e | 51.48 | e | 55.35 | e | 51.04 | e | ----- | z | ----- | z | ----- | z | 6.50 | g | 34.33 | e |
1969 | 10.82 | i | 14.10 | g | 13.95 | i | 34.72 | e | 46.42 | e | 49.13 | g | 57.87 | h | 58.00 | e | 47.08 | f | 30.48 | f | 22.42 | f | 15.62 | g | 46.38 | i |
1970 | 8.88 | e | 21.17 | d | 22.00 | e | 28.28 | e | 41.42 | g | 49.31 | d | 55.67 | g | 56.81 | e | 40.76 | e | 29.00 | e | 23.43 | g | 12.92 | e | 29.90 | c |
1971 | 11.64 | f | 18.36 | f | 21.20 | f | 30.33 | i | 36.54 | e | 49.08 | f | 55.64 | f | 57.48 | h | 40.20 | j | 35.57 | q | 13.92 | f | 5.62 | j | 36.54 | k |
1972 | 10.85 | e | 17.78 | f | 30.25 | g | 31.50 | j | 38.40 | k | 50.70 | g | 56.27 | t | 53.33 | p | 40.75 | v | ----- | z | ----- | z | ----- | z | 10.85 | k |
1973 | -6.86 | j | 2.89 | j | 23.33 | j | 27.91 | g | 38.88 | g | 46.55 | h | 53.55 | k | 50.59 | i | 36.88 | m | 30.94 | n | 16.24 | m | 3.45 | k | ----- | z |
1974 | -2.45 | i | 5.21 | i | 27.64 | i | 31.73 | h | 43.83 | h | 52.47 | 56.21 | c | 53.23 | 45.57 | 39.45 | b | 25.00 | 10.77 | a | 40.38 | e | ||||
1975 | 8.68 | 15.42 | b | 26.16 | 29.63 | 39.65 | 47.97 | 58.48 | 53.35 | 47.00 | 34.13 | a | 21.47 | 10.77 | 32.73 | |||||||||||
1976 | 7.73 | a | 19.21 | a | 21.06 | 35.53 | 44.71 | 48.75 | b | 59.93 | a | 54.81 | 48.33 | 32.10 | 23.60 | 13.55 | 34.11 | |||||||||
1977 | 13.03 | 19.96 | 21.23 | 36.23 | 42.06 | 56.40 | 58.61 | 57.13 | a | 48.07 | 36.03 | b | 24.97 | a | 19.42 | 36.10 | ||||||||||
1978 | 13.48 | 13.41 | a | 29.94 | 36.10 | 40.13 | 51.80 | 57.06 | 53.16 | 45.20 | 37.04 | f | 19.45 | a | -1.23 | a | 32.59 | a | ||||||||
1979 | -4.14 | b | 6.81 | a | 22.70 | a | 32.73 | 42.77 | 49.90 | 55.84 | 54.90 | 48.63 | 35.67 | d | 17.80 | 11.77 | 31.28 | |||||||||
1980 | 16.41 | d | 13.90 | 22.70 | a | 32.47 | 42.48 | 51.77 | 59.06 | 54.48 | 47.27 | 35.23 | 23.93 | a | 22.45 | 35.18 | ||||||||||
1981 | 18.19 | 19.16 | c | 28.13 | 37.21 | a | 42.81 | 53.40 | 58.71 | 56.23 | a | 49.77 | 36.93 | a | 25.68 | b | 18.00 | 37.02 | ||||||||
1982 | 9.77 | a | 14.54 | b | 27.00 | 28.03 | 42.13 | a | 49.68 | b | 58.13 | a | 59.16 | 48.57 | b | 32.50 | c | 23.63 | c | 16.28 | b | 34.12 | ||||
1983 | 12.70 | a | 18.88 | c | 29.03 | a | 32.41 | a | 40.19 | 48.96 | g | 59.71 | g | 60.55 | b | 50.56 | c | 39.42 | e | 26.48 | a | 9.52 | h | 34.47 | c | |
1984 | -2.86 | c | 1.77 | g | 22.27 | a | 32.55 | a | 44.84 | 50.10 | 59.61 | 57.81 | 48.13 | 32.94 | 22.57 | 10.43 | a | 34.40 | a | |||||||
1985 | -0.55 | 0.68 | 21.23 | 38.90 | 46.76 | b | 53.29 | b | 59.87 | 56.10 | 43.93 | 37.94 | n | 27.34 | a | 8.45 | b | 32.36 | a | |||||||
1986 | 8.87 | a | 24.68 | 31.29 | 34.40 | 40.80 | a | 53.94 | l | 57.14 | c | 57.35 | 45.41 | a | 35.23 | 27.00 | b | 18.00 | 34.56 | a | ||||||
1987 | 10.09 | i | 22.26 | e | 23.93 | b | 35.40 | 45.41 | b | 55.52 | a | 58.45 | b | 55.60 | a | 46.81 | n | 38.73 | i | 26.47 | 13.76 | b | 37.42 | c | ||
1988 | 0.03 | 9.41 | 22.16 | 34.63 | c | 41.55 | b | 54.40 | 58.81 | 55.84 | 44.03 | a | 41.07 | p | 24.70 | 8.62 | e | 32.20 | a | |||||||
1989 | 0.13 | a | 5.74 | a | 26.29 | 37.69 | a | 42.40 | a | 48.57 | 58.32 | 53.57 | a | 43.87 | 33.61 | 22.97 | 11.84 | 32.08 | ||||||||
1990 | 11.10 | 10.21 | 27.13 | a | 35.34 | a | 37.16 | 48.63 | 54.43 | a | 52.39 | 46.80 | e | 33.29 | 18.34 | a | -1.23 | a | 31.13 | |||||||
1991 | -2.29 | 11.00 | 21.77 | 26.60 | 37.32 | 46.57 | 51.19 | o | 51.68 | l | 42.47 | 29.48 | f | 18.43 | 8.50 | m | 25.23 | d | ||||||||
1992 | -4.72 | m | 14.55 | 26.00 | 33.23 | 41.13 | a | 46.00 | c | 49.87 | h | 50.13 | 42.10 | a | 32.84 | 16.17 | 0.96 | e | 30.31 | b | ||||||
1993 | 1.13 | 3.42 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 1.13 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 6.95 | 13.32 | 24.74 | 34.24 | 42.64 | 49.98 | 57.23 | 54.93 | 46.28 | 35.49 | 22.89 | 12.72 | 33.82 | |||||||||||||
S.D. | 6.74 | 6.64 | 3.52 | 3.14 | 2.89 | 2.86 | 2.30 | 3.14 | 2.71 | 2.63 | 3.56 | 6.20 | 1.61 | |||||||||||||
SKEW | 0.10 | -0.40 | 0.20 | -0.65 | -0.16 | 0.21 | -1.05 | -1.37 | -0.35 | -0.20 | -0.48 | -0.24 | -0.01 | |||||||||||||
MAX | 23.13 | 24.96 | 33.19 | 38.93 | 48.43 | 56.40 | 60.74 | 60.55 | 50.70 | 41.42 | 28.80 | 24.74 | 37.02 | |||||||||||||
MIN | -5.87 | -1.82 | 18.03 | 26.60 | 36.54 | 43.80 | 50.10 | 43.29 | 39.87 | 29.00 | 14.14 | -1.23 | 31.13 | |||||||||||||
YRS | 42 | 41 | 42 | 42 | 42 | 40 | 38 | 45 | 42 | 38 | 42 | 40 | 26 |