YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.96 | c | 48.62 | a | 32.77 | i | 19.64 | e | 14.90 | 34.03 | h | |
1949 | -1.10 | j | 12.64 | 21.89 | c | 32.50 | b | 42.03 | 49.76 | a | 55.84 | 53.15 | d | 44.10 | 33.24 | f | 30.61 | b | 15.00 | 35.75 | b | |||||
1950 | 10.20 | a | 19.36 | f | 18.10 | 26.53 | 34.42 | 46.21 | f | 51.48 | 50.27 | e | 45.21 | b | 37.96 | d | 23.00 | m | 19.60 | a | 32.64 | c | ||||
1951 | 10.45 | 19.30 | a | 16.04 | f | 25.83 | 39.90 | 42.31 | d | 54.10 | a | 52.43 | c | 41.62 | d | 33.00 | 23.67 | r | 12.00 | 33.09 | b | |||||
1952 | 16.65 | 18.57 | a | 17.04 | d | 30.10 | 39.96 | d | 51.79 | a | 53.38 | b | 54.92 | e | 45.97 | 32.82 | c | 18.40 | 17.43 | a | 33.09 | |||||
1953 | 24.19 | 16.21 | 25.50 | a | 23.67 | c | 32.39 | m | 51.80 | e | 57.10 | a | 55.48 | d | 46.97 | 36.83 | a | 27.96 | e | 15.96 | c | 34.70 | a | |||
1954 | 18.27 | a | 25.54 | 17.00 | a | 33.00 | a | 37.45 | k | 49.20 | 59.13 | 55.45 | b | 48.27 | 34.72 | f | 26.10 | a | 20.65 | 35.26 | b | |||||
1955 | 14.06 | 11.54 | 17.03 | 31.54 | b | 40.75 | o | 46.66 | a | 56.77 | 57.96 | d | 46.23 | 35.77 | 18.67 | 18.93 | b | 32.29 | a | |||||||
1956 | 18.26 | 14.10 | 21.80 | a | 26.87 | 41.19 | e | 53.46 | f | 55.16 | 53.19 | 45.47 | 36.67 | a | 21.77 | 23.45 | 32.54 | a | ||||||||
1957 | 9.29 | 22.36 | f | 21.90 | 27.73 | 39.54 | e | 48.57 | 56.29 | 56.31 | e | 42.64 | b | 37.26 | 22.04 | b | 22.61 | 34.93 | a | |||||||
1958 | 17.65 | 17.46 | 13.68 | 28.87 | 44.03 | 47.10 | 49.55 | 52.42 | 43.00 | 33.71 | 22.73 | 20.16 | 32.53 | |||||||||||||
1959 | 14.77 | 15.36 | 22.23 | 28.73 | 39.63 | a | 51.13 | 53.65 | 55.32 | 42.67 | 30.73 | a | 18.80 | 21.65 | 32.89 | |||||||||||
1960 | 15.29 | 13.41 | 22.71 | 32.00 | 40.03 | 49.62 | a | 55.87 | 52.39 | 46.03 | 35.90 | 23.70 | 15.65 | 33.55 | ||||||||||||
1961 | 18.13 | 22.21 | 23.81 | 28.07 | 39.55 | 49.53 | 54.29 | 55.87 | 39.70 | 33.77 | a | 21.50 | 14.55 | 33.41 | ||||||||||||
1962 | 8.58 | 17.11 | 20.65 | 32.73 | 42.48 | 47.87 | 53.29 | 52.48 | 44.52 | a | 38.06 | 29.23 | 20.16 | 33.93 | ||||||||||||
1963 | 4.74 | 22.21 | 23.55 | 31.80 | 41.35 | 50.97 | 57.55 | 55.52 | 50.67 | 40.87 | a | 25.47 | 13.97 | 34.89 | ||||||||||||
1964 | 14.65 | 11.71 | a | 15.40 | a | 28.27 | 40.74 | 47.50 | 58.42 | 51.68 | 43.13 | 33.45 | 23.13 | 16.35 | 32.04 | |||||||||||
1965 | 19.81 | 13.39 | 10.61 | 32.60 | 38.55 | 48.97 | 55.68 | 51.74 | 37.60 | 36.87 | 27.23 | 18.58 | 32.64 | |||||||||||||
1966 | 10.65 | 12.07 | 22.77 | 25.10 | 38.74 | 45.73 | 57.27 | a | 50.52 | 44.70 | 30.10 | 23.63 | 14.32 | 31.30 | ||||||||||||
1967 | 17.19 | 17.21 | 22.26 | 28.50 | 35.42 | 44.76 | a | 52.83 | a | 49.45 | 42.57 | 33.68 | 20.27 | 12.57 | a | 31.39 | ||||||||||
1968 | 14.83 | a | 19.89 | a | 25.46 | c | 27.59 | a | 37.24 | b | 49.04 | c | ----- | z | 50.62 | j | 40.82 | h | 34.43 | h | 18.70 | c | 11.04 | c | 25.47 | d |
1969 | 13.56 | f | 17.67 | a | 18.50 | e | 31.83 | 40.17 | a | 43.43 | 55.55 | b | 55.73 | e | 49.37 | 26.77 | a | 26.23 | 21.19 | 35.13 | a | |||||
1970 | 16.13 | 23.04 | 16.23 | e | 26.10 | 39.52 | 47.50 | d | 55.76 | j | 56.62 | b | 42.37 | 30.16 | 24.90 | 15.45 | 30.73 | a | ||||||||
1971 | 17.97 | a | 12.25 | 18.67 | a | 26.40 | 37.58 | 49.24 | a | 52.23 | a | 54.00 | 40.30 | 32.35 | 24.04 | b | 15.32 | 31.70 | ||||||||
1972 | 9.28 | b | 20.18 | a | 26.72 | b | 30.80 | 39.53 | a | 51.24 | a | 52.13 | 53.39 | 44.07 | b | 33.52 | 20.96 | c | 11.70 | a | 32.79 | |||||
1973 | 13.94 | 19.00 | a | 22.97 | a | 26.38 | a | 37.19 | 48.93 | 54.00 | 54.87 | 43.33 | 36.13 | 24.03 | 17.94 | 33.23 | ||||||||||
1974 | 10.40 | a | 21.57 | 25.00 | 30.66 | a | 39.48 | 49.40 | 55.61 | 49.29 | 40.73 | 35.37 | a | 23.00 | 15.10 | 32.97 | ||||||||||
1975 | 14.30 | a | 13.29 | 20.10 | 27.07 | b | 37.68 | 46.31 | a | 54.29 | 52.48 | 41.27 | 34.32 | 22.45 | a | 21.10 | a | 32.05 | ||||||||
1976 | 14.84 | 22.62 | 19.37 | a | 32.03 | a | 38.94 | 47.10 | 55.90 | b | 52.29 | 44.83 | 29.81 | 19.86 | a | 17.61 | 32.93 | |||||||||
1977 | 7.63 | a | 22.36 | 21.59 | b | 34.21 | b | 43.65 | 52.50 | 56.37 | a | 52.42 | 46.37 | 34.45 | 22.38 | a | 17.73 | a | 34.30 | |||||||
1978 | 10.26 | 12.89 | a | 25.57 | a | 31.67 | 38.90 | a | 48.77 | 54.67 | a | 51.58 | 44.76 | a | 34.00 | a | 20.03 | 7.74 | 31.74 | |||||||
1979 | 1.68 | 16.74 | a | 25.45 | 30.46 | b | 38.68 | 48.03 | 54.71 | 52.13 | 46.90 | 35.97 | b | 17.76 | a | 20.32 | 32.40 | |||||||||
1980 | 9.94 | 17.96 | a | 21.83 | a | 30.50 | 38.97 | a | 50.10 | a | 57.03 | 53.10 | a | 45.77 | 33.52 | 24.00 | 24.00 | 33.89 | ||||||||
1981 | 18.65 | 17.79 | 24.61 | 34.86 | a | 39.63 | a | 50.03 | 56.26 | 52.97 | 47.45 | a | 34.60 | a | 27.73 | 19.32 | 35.33 | |||||||||
1982 | 9.65 | 16.04 | a | 23.00 | 26.34 | a | 39.41 | b | 46.70 | 55.06 | 56.77 | 45.40 | 33.29 | 18.90 | a | 19.37 | a | 32.49 | ||||||||
1983 | 22.00 | a | 22.61 | 24.32 | 25.80 | 36.10 | 48.00 | a | 55.81 | 59.13 | 45.30 | 35.94 | 23.20 | 3.70 | a | 33.49 | ||||||||||
1984 | 16.67 | a | 21.45 | 24.16 | 26.77 | 40.74 | 48.66 | a | 56.13 | 56.65 | 41.83 | 30.68 | 24.70 | 15.17 | a | 33.63 | ||||||||||
1985 | 10.06 | 12.54 | 22.87 | 33.69 | a | 42.33 | a | 47.07 | a | 56.42 | 52.52 | 42.30 | 31.87 | 15.17 | 16.17 | a | 31.92 | |||||||||
1986 | 24.30 | a | 17.33 | a | 30.35 | 31.03 | a | 37.94 | 51.27 | d | 53.70 | a | 53.35 | 44.70 | 34.40 | a | 22.43 | b | 17.50 | a | 34.86 | |||||
1987 | 19.55 | 22.64 | 21.84 | 33.10 | 43.68 | 50.33 | 55.03 | a | 51.26 | 43.52 | a | 33.13 | a | 23.97 | a | 14.13 | 34.35 | |||||||||
1988 | 9.52 | 16.24 | 21.19 | 30.47 | 41.32 | 54.77 | 54.52 | 53.87 | 43.59 | a | 35.48 | 23.70 | 16.32 | 33.42 | ||||||||||||
1989 | 17.59 | b | 8.29 | 22.14 | c | 32.13 | 41.77 | a | 46.40 | 55.68 | 53.70 | a | 44.21 | a | 35.16 | 26.40 | 13.50 | c | 33.08 | |||||||
1990 | 20.70 | a | 18.85 | a | 24.35 | 31.73 | 37.23 | a | 50.72 | a | 53.83 | a | 54.16 | 49.60 | 33.84 | 27.43 | 9.80 | a | 34.36 | |||||||
1991 | 11.93 | a | 25.32 | 24.26 | 31.17 | 42.84 | 52.20 | 54.94 | 56.03 | 46.10 | 31.84 | 22.73 | 19.42 | 34.90 | ||||||||||||
1992 | 20.32 | 26.45 | 28.39 | 34.03 | 40.70 | a | 48.87 | 52.17 | b | 51.35 | 46.13 | 36.20 | a | 21.70 | 10.97 | a | 34.77 | |||||||||
1993 | 14.71 | 13.18 | 26.90 | 32.10 | a | 41.97 | 47.03 | 52.97 | 52.39 | 42.40 | 33.17 | a | 18.63 | 20.34 | b | 32.98 | ||||||||||
1994 | 19.23 | a | 13.74 | a | 26.97 | 32.00 | 43.33 | d | 52.93 | c | 53.63 | a | 55.23 | 48.33 | 36.61 | 23.43 | 20.77 | a | 35.52 | |||||||
1995 | 18.83 | a | 21.32 | 23.07 | a | 28.86 | b | 37.90 | b | 47.07 | b | 53.48 | 55.63 | a | 45.63 | 32.68 | 26.77 | 18.80 | a | 34.17 | ||||||
1996 | 11.06 | 18.55 | 20.06 | 31.07 | 41.71 | 50.73 | 55.97 | b | 54.29 | 45.14 | a | 35.03 | 23.07 | a | 17.47 | a | 33.68 | |||||||||
1997 | 15.61 | 18.82 | 25.17 | a | 25.97 | 40.45 | b | 52.24 | a | 55.03 | 55.23 | 49.69 | a | 35.47 | a | 23.03 | 19.45 | b | 34.68 | |||||||
1998 | 20.00 | 23.04 | 22.19 | 31.27 | 43.13 | a | ----- | z | 57.84 | 55.45 | 51.10 | 37.06 | 30.27 | 15.37 | a | 35.16 | a | |||||||||
1999 | 20.16 | 24.14 | 24.77 | a | 30.55 | a | 39.07 | c | 49.16 | e | 56.56 | d | 55.61 | 42.59 | a | 35.19 | 31.17 | 21.90 | b | 35.91 | ||||||
2000 | 20.43 | a | 25.33 | b | 26.50 | a | 30.83 | a | 42.10 | a | 47.76 | a | 57.67 | a | 57.00 | 46.17 | 35.35 | 15.73 | 12.90 | 34.81 | ||||||
2001 | 17.83 | a | 15.18 | 25.07 | a | 33.34 | a | 40.97 | 50.40 | 59.42 | 56.03 | 47.97 | 35.17 | a | 27.10 | 18.87 | 35.61 | |||||||||
2002 | 17.45 | 18.96 | 17.19 | 32.85 | c | 38.07 | a | 52.17 | 58.35 | 52.87 | 45.93 | a | 30.00 | a | 24.57 | 22.52 | 34.24 | |||||||||
2003 | 21.81 | 15.29 | 25.48 | b | 35.36 | b | 41.33 | a | 48.00 | 59.37 | a | 55.74 | h | 43.17 | a | 36.77 | 22.57 | 20.19 | 33.58 | a | ||||||
2004 | 19.29 | 18.17 | 27.42 | 32.53 | 41.23 | 46.90 | a | 54.26 | 51.48 | 46.37 | 36.63 | a | 23.67 | 20.97 | 34.91 | |||||||||||
2005 | 19.48 | 21.96 | 25.39 | 30.93 | 39.55 | 50.03 | a | 56.45 | 52.45 | 47.20 | 35.94 | 28.07 | 17.10 | 35.38 | ||||||||||||
2006 | 23.97 | 15.93 | 22.00 | 33.83 | 41.70 | a | 52.20 | 58.19 | 56.10 | 42.43 | 33.35 | 25.53 | 20.77 | 35.50 | ||||||||||||
2007 | 13.39 | 17.96 | 30.35 | 30.60 | 40.65 | 49.93 | 59.00 | 58.42 | 47.00 | 37.55 | 25.53 | 14.13 | a | 35.38 | ||||||||||||
2008 | 13.13 | 18.28 | 23.26 | 28.30 | 39.00 | 48.13 | 56.60 | a | 53.03 | 44.87 | 34.13 | a | 28.60 | e | 11.74 | 33.26 | ||||||||||
2009 | 18.81 | 21.57 | 22.03 | 29.67 | 42.30 | a | 48.90 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.55 | f | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 15.43 | 18.08 | 22.51 | 30.19 | 40.06 | 49.03 | 55.42 | 53.91 | 44.93 | 34.39 | 23.47 | 16.94 | 33.67 | |||||||||||||
S.D. | 4.90 | 4.17 | 3.82 | 2.77 | 2.09 | 2.35 | 2.08 | 2.19 | 2.73 | 2.49 | 3.58 | 4.02 | 1.25 | |||||||||||||
SKEW | -0.43 | -0.02 | -0.63 | -0.35 | -0.30 | -0.27 | -0.19 | 0.15 | -0.02 | -0.46 | -0.03 | -0.71 | -0.05 | |||||||||||||
MAX | 24.30 | 26.45 | 30.35 | 35.36 | 44.03 | 54.77 | 59.42 | 59.13 | 51.10 | 40.87 | 31.17 | 24.00 | 35.91 | |||||||||||||
MIN | 1.68 | 8.29 | 10.61 | 23.67 | 34.42 | 42.31 | 49.55 | 49.29 | 37.60 | 26.77 | 15.17 | 3.70 | 31.30 | |||||||||||||
YRS | 59 | 59 | 60 | 61 | 58 | 58 | 58 | 59 | 60 | 57 | 59 | 61 | 47 |