YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.65 | 56.97 | 46.37 | 43.32 | 23.21 | a | 12.94 | 39.41 | f | |||||
1948 | 1.59 | b | 3.56 | b | 17.23 | 33.20 | e | 35.58 | 46.03 | 52.50 | a | 54.97 | 47.10 | 37.61 | 28.63 | 12.90 | 30.91 | |||||||||
1949 | 8.39 | 4.39 | 15.76 | b | 32.23 | 37.33 | a | 48.00 | 55.55 | 57.48 | 45.33 | 39.42 | 27.87 | 10.00 | d | 31.81 | ||||||||||
1950 | -3.60 | a | 6.32 | 10.45 | 25.30 | 34.73 | a | 43.38 | a | 48.94 | 45.32 | 45.28 | a | 38.52 | b | ----- | z | ----- | z | 29.46 | b | |||||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | 38.84 | 43.90 | 56.42 | l | 52.13 | 44.62 | a | 36.74 | 18.77 | 9.83 | a | 34.98 | e | |||||
1952 | 3.23 | a | 14.10 | 16.55 | 31.93 | 37.26 | 48.32 | b | 54.68 | 53.32 | 47.40 | 31.42 | 26.30 | 19.06 | 31.97 | |||||||||||
1953 | 9.30 | a | 7.57 | 21.29 | c | 28.86 | a | 36.52 | 44.73 | 52.65 | 57.35 | 47.23 | 39.03 | 27.63 | 12.74 | 32.08 | ||||||||||
1954 | 1.97 | a | 18.04 | 16.61 | 28.90 | 34.94 | 47.00 | 53.87 | 53.35 | 47.73 | 37.65 | 29.03 | 17.26 | 32.20 | ||||||||||||
1955 | 7.45 | 6.19 | a | 9.71 | 34.87 | 38.81 | 49.30 | 57.90 | 59.61 | 47.23 | 38.77 | 18.13 | 6.65 | 31.22 | ||||||||||||
1956 | 9.58 | 6.69 | 16.29 | 28.50 | 36.70 | a | 47.13 | 50.32 | 53.31 | e | 43.60 | 41.77 | 25.80 | 13.39 | 31.09 | |||||||||||
1957 | -0.71 | 7.04 | 15.45 | 30.60 | 38.77 | 45.40 | 54.94 | 54.42 | 46.00 | 37.55 | 27.13 | 15.06 | 30.97 | |||||||||||||
1958 | ----- | z | ----- | z | 19.63 | l | 29.89 | b | 36.61 | 42.90 | 51.94 | 52.84 | 50.57 | 39.65 | 26.33 | 0.31 | o | 41.34 | d | |||||||
1959 | -1.77 | a | 3.39 | 18.77 | 29.93 | a | 39.70 | a | 48.27 | ----- | z | ----- | z | 49.57 | 36.32 | 16.73 | 21.65 | 26.26 | b | |||||||
1960 | 6.90 | 8.66 | 8.68 | 28.83 | r | 35.74 | 45.50 | 52.77 | 56.26 | ----- | z | 37.64 | c | 28.23 | 13.50 | q | 31.15 | c | ||||||||
1961 | 3.96 | d | 13.39 | 23.55 | 28.00 | a | 35.42 | 45.23 | h | ----- | z | 56.69 | e | 51.04 | d | 39.10 | 26.00 | 11.90 | 28.91 | b | ||||||
1962 | 0.58 | 3.30 | a | 18.55 | 27.03 | 38.10 | 42.68 | b | 50.36 | q | 51.16 | 45.13 | 39.13 | a | 29.97 | 8.29 | 27.63 | a | ||||||||
1963 | -2.30 | a | -0.79 | 17.52 | 27.60 | 38.00 | a | 43.63 | 54.90 | 51.00 | 48.00 | 45.42 | 29.53 | 5.94 | 29.87 | |||||||||||
1964 | 8.74 | 6.11 | a | 14.90 | 27.53 | 40.16 | 42.97 | a | 53.59 | b | ----- | z | 44.88 | d | 38.32 | 27.07 | 6.27 | a | 28.23 | a | ||||||
1965 | -0.43 | a | -3.23 | b | 9.94 | 29.80 | 38.13 | a | 42.70 | 48.55 | 52.19 | 43.30 | 37.10 | 24.63 | 19.60 | a | 28.52 | |||||||||
1966 | -6.77 | 8.54 | 19.32 | 28.37 | 36.32 | 47.37 | 56.16 | 52.35 | 45.03 | 35.48 | 22.87 | 8.74 | 29.48 | |||||||||||||
1967 | 3.94 | -7.11 | 15.26 | 28.60 | 32.71 | 45.23 | 53.16 | 50.90 | 45.93 | 36.03 | 23.60 | 12.55 | 28.40 | |||||||||||||
1968 | 2.47 | a | 1.45 | 21.68 | 31.93 | 36.13 | 43.93 | 52.32 | 50.97 | 48.00 | 40.42 | 26.33 | 10.90 | 30.54 | ||||||||||||
1969 | 5.06 | 2.04 | 11.23 | 29.50 | 37.81 | 43.37 | 51.61 | 56.58 | 48.80 | 35.94 | 25.77 | 15.77 | 30.29 | |||||||||||||
1970 | -3.52 | 1.46 | 10.58 | 30.10 | 37.45 | 47.63 | 57.52 | 50.68 | 46.63 | 36.71 | 24.10 | 8.61 | 29.00 | |||||||||||||
1971 | -4.03 | 2.07 | 11.37 | a | 27.13 | 34.58 | 44.80 | 49.19 | 48.39 | 44.23 | ----- | z | ----- | z | ----- | z | 28.64 | c | ||||||||
1972 | -6.39 | -2.93 | 12.39 | 25.50 | 37.13 | 45.79 | a | 51.90 | j | 52.53 | a | 43.27 | 34.39 | 26.17 | 7.68 | 25.05 | a | |||||||||
1973 | 6.03 | a | 7.52 | a | 28.60 | a | 31.57 | 34.32 | 47.93 | 55.06 | 54.97 | 42.70 | 40.97 | 27.67 | 6.64 | i | 34.30 | a | ||||||||
1974 | 1.29 | 9.63 | a | 14.97 | 27.77 | 36.87 | 47.47 | 55.39 | ----- | z | ----- | z | 33.52 | 24.50 | ----- | z | 27.93 | c | ||||||||
1975 | 4.90 | b | 4.68 | 12.13 | 24.21 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 11.48 | h | ||
1976 | ----- | z | ----- | z | ----- | z | 32.70 | t | 34.83 | a | ----- | z | ----- | z | ----- | z | 33.64 | p | 27.11 | c | 17.30 | -4.55 | b | 18.67 | h | |
1977 | -9.77 | 6.93 | 22.77 | a | 28.43 | b | 41.06 | 44.36 | e | 51.97 | 47.68 | 44.34 | a | 33.55 | 22.87 | 8.45 | 28.55 | |||||||||
1978 | -2.48 | -2.57 | 13.35 | 26.56 | c | 35.32 | c | 46.52 | a | 51.85 | d | 51.75 | c | 46.79 | f | 35.59 | b | 19.50 | b | ----- | z | 27.54 | b | |||
1979 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.73 | o | 17.45 | 17.45 | k | |
1980 | 5.13 | 7.59 | 13.50 | a | 29.83 | 39.93 | a | 45.77 | 54.45 | b | 57.33 | a | 46.77 | 34.61 | c | 26.73 | 7.32 | 30.75 | ||||||||
1981 | 7.84 | 11.93 | 22.17 | b | 31.60 | 41.55 | 48.59 | a | 57.60 | a | 57.58 | 47.60 | 35.61 | 30.93 | ----- | z | 35.73 | a | ||||||||
1982 | -8.30 | a | 4.27 | b | 18.00 | a | 28.39 | b | 42.37 | a | 44.90 | a | 53.63 | a | 51.65 | 46.70 | 38.73 | a | 21.14 | a | 14.93 | c | 29.70 | |||
1983 | 10.53 | a | 19.15 | b | 22.97 | b | 30.59 | a | 37.03 | 47.54 | b | 60.81 | 61.58 | 50.13 | 38.81 | 26.63 | c | 0.26 | 33.84 | |||||||
1984 | 3.52 | b | 20.59 | b | 14.35 | 32.10 | a | 40.42 | 49.85 | c | 57.52 | b | 58.93 | a | 45.80 | 41.17 | b | 24.82 | b | 10.26 | 33.28 | |||||
1985 | 2.76 | b | 6.44 | a | 24.94 | 33.23 | d | 41.00 | b | 45.35 | j | 55.33 | d | 54.17 | b | 46.66 | a | 37.37 | a | 18.45 | a | ----- | z | 32.03 | b | |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1987 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1988 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1989 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1990 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1991 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1992 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.86 | c | 41.75 | f | 32.26 | 23.93 | 12.39 | 29.86 | h | |||
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.35 | 55.23 | 39.87 | 30.19 | 21.37 | 17.52 | d | 35.92 | f | |||||
1994 | -6.45 | -2.15 | a | 18.87 | 29.17 | 35.13 | a | 46.07 | a | 51.32 | 52.47 | a | 47.53 | 37.93 | c | 25.69 | d | 14.10 | a | 29.14 | ||||||
1995 | 10.00 | a | 4.22 | a | 18.39 | 25.03 | a | 35.90 | 44.97 | a | 52.20 | a | 55.06 | 43.70 | 37.65 | ----- | z | ----- | z | 32.71 | b | |||||
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 51.20 | 37.23 | 20.96 | e | 11.00 | a | 30.10 | h | ||
1997 | 3.39 | 9.50 | 19.03 | a | 27.77 | d | 39.55 | 52.00 | c | 63.48 | b | 57.87 | 52.54 | b | 41.81 | 25.55 | a | 19.48 | 34.33 | |||||||
1998 | 12.77 | a | 28.64 | 22.00 | 36.86 | b | 48.26 | 52.50 | ----- | z | ----- | z | 51.95 | i | 40.16 | 29.27 | 14.94 | 31.71 | c | |||||||
1999 | 3.26 | 15.32 | 21.58 | 32.07 | 40.86 | b | 48.82 | b | 58.74 | 56.26 | d | 49.48 | a | 34.97 | 30.70 | 15.58 | 33.97 | |||||||||
2000 | 5.48 | 16.38 | 25.74 | 28.47 | 39.32 | f | 46.41 | h | 54.73 | a | 57.67 | a | 45.79 | a | 39.19 | 27.83 | 4.87 | 30.62 | b | |||||||
2001 | 11.12 | f | 4.18 | 15.86 | i | 32.77 | 43.93 | a | 49.79 | a | 56.34 | b | 60.39 | c | 46.60 | 36.65 | 33.37 | 20.77 | 38.48 | b | ||||||
2002 | 10.44 | f | 17.07 | 12.61 | 31.37 | 35.77 | 47.37 | 59.65 | 57.11 | l | 50.00 | 33.00 | 23.67 | 17.26 | 32.78 | b | ||||||||||
2003 | 4.87 | 2.07 | 15.16 | 27.07 | 36.48 | 43.97 | 55.32 | 58.35 | 49.50 | 36.00 | 24.57 | 16.87 | 30.85 | |||||||||||||
2004 | 1.26 | 10.38 | 21.06 | 28.37 | 36.26 | 45.17 | 52.87 | 50.97 | 51.10 | 39.61 | 29.57 | 10.97 | 31.46 | |||||||||||||
2005 | 2.50 | i | 14.07 | 15.84 | 31.57 | 37.84 | 46.90 | 56.74 | 56.10 | a | 50.73 | 40.16 | 27.07 | 16.03 | 35.73 | a | ||||||||||
2006 | 19.97 | 6.89 | 22.10 | 33.03 | 41.19 | 50.50 | 60.90 | a | ----- | z | 45.72 | a | ----- | z | ----- | z | 19.45 | 33.31 | c | |||||||
2007 | 10.65 | -1.82 | 20.13 | a | 24.33 | 37.77 | 45.57 | 52.39 | 52.83 | b | 48.03 | a | 39.47 | a | 26.83 | 8.90 | 30.42 | |||||||||
2008 | 5.45 | 1.17 | 11.16 | 28.21 | a | 33.71 | 46.27 | 53.00 | 51.97 | 46.10 | 36.23 | a | 24.50 | d | 8.89 | v | 30.71 | a | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 3.02 | 6.92 | 17.12 | 29.49 | 37.77 | 46.36 | 54.43 | 54.18 | 46.89 | 37.36 | 25.30 | 12.32 | 30.95 | |||||||||||||
S.D. | 6.05 | 7.05 | 4.77 | 2.72 | 2.86 | 2.42 | 3.22 | 3.45 | 2.60 | 3.25 | 3.70 | 5.45 | 1.68 | |||||||||||||
SKEW | 0.06 | 0.68 | 0.20 | 0.26 | 1.15 | 0.51 | 0.61 | -0.11 | -0.03 | -0.53 | -0.49 | -0.66 | 0.38 | |||||||||||||
MAX | 19.97 | 28.64 | 28.60 | 36.86 | 48.26 | 52.50 | 63.48 | 61.58 | 52.54 | 45.42 | 33.37 | 21.65 | 34.33 | |||||||||||||
MIN | -9.77 | -7.11 | 8.68 | 24.21 | 32.71 | 42.68 | 48.55 | 45.32 | 39.87 | 27.11 | 16.73 | -4.55 | 28.40 | |||||||||||||
YRS | 45 | 48 | 47 | 48 | 49 | 46 | 45 | 46 | 48 | 52 | 50 | 44 | 26 |