YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.98 | 66.53 | 61.43 | 46.05 | a | 37.55 | 22.58 | 50.36 | f | |||||
1949 | 21.24 | 18.86 | 28.63 | 44.04 | b | 53.78 | a | 66.50 | 70.13 | 67.29 | 55.32 | 50.48 | 32.88 | 22.30 | a | 44.29 | ||||||||||
1950 | 14.76 | 16.43 | 22.95 | 33.53 | a | 51.21 | 62.25 | 64.63 | 60.35 | 56.63 | 51.03 | 28.95 | a | 16.03 | 39.90 | |||||||||||
1951 | 13.66 | 18.96 | 27.48 | a | 42.58 | 57.47 | 59.57 | b | 66.85 | 61.87 | 55.63 | 47.10 | 26.09 | c | 19.92 | 41.43 | ||||||||||
1952 | 16.53 | 22.59 | 25.89 | 46.43 | a | 53.85 | 64.48 | a | 69.13 | 64.27 | 58.50 | a | 41.87 | a | 36.22 | 27.11 | 43.91 | |||||||||
1953 | 21.73 | 19.14 | 30.52 | 39.68 | 52.90 | 63.00 | a | 67.50 | 67.45 | a | 58.62 | a | 51.61 | 38.50 | 24.45 | 44.59 | ||||||||||
1954 | 14.76 | 27.57 | 26.58 | 43.40 | 48.27 | 64.47 | 66.37 | 64.23 | 56.03 | a | 46.76 | 36.37 | 23.83 | a | 43.22 | |||||||||||
1955 | 15.58 | 17.34 | 25.34 | 48.48 | a | 55.66 | 63.60 | 73.16 | 70.35 | 58.70 | 49.15 | 29.35 | 16.79 | 43.63 | ||||||||||||
1956 | 19.10 | 17.77 | a | 23.87 | a | 38.38 | 51.57 | a | 63.73 | 63.58 | 64.63 | 52.87 | 52.10 | a | 33.67 | a | 21.98 | 41.94 | ||||||||
1957 | 9.50 | 19.95 | 28.03 | 42.90 | 52.13 | 63.12 | b | 67.73 | 64.45 | 55.53 | 45.69 | 34.00 | a | 22.94 | 42.16 | |||||||||||
1958 | 20.31 | 16.14 | 31.27 | 42.95 | 51.78 | a | 57.62 | 64.75 | a | 65.13 | 57.48 | a | 48.87 | a | 35.67 | 12.95 | 42.08 | |||||||||
1959 | 8.58 | 12.18 | 25.26 | 41.27 | 56.68 | 63.50 | 66.48 | 69.37 | 58.87 | 43.50 | 25.53 | 27.71 | 41.58 | |||||||||||||
1960 | 18.48 | 20.16 | 19.48 | 42.88 | 51.98 | 60.88 | b | 65.32 | 66.29 | 59.17 | 47.13 | 37.27 | 18.44 | 42.29 | ||||||||||||
1961 | 15.00 | a | 24.12 | 31.47 | b | 40.13 | 50.94 | 62.27 | 66.08 | 66.19 | 59.08 | 47.63 | 33.47 | 17.92 | 42.86 | |||||||||||
1962 | 11.45 | 13.04 | 27.32 | 40.82 | 57.45 | 61.68 | 63.35 | 64.71 | 54.58 | 49.13 | 33.83 | 20.30 | a | 41.47 | ||||||||||||
1963 | 5.74 | 8.80 | 28.38 | a | 43.33 | 50.71 | 64.42 | 67.82 | 63.69 | 56.82 | 55.13 | a | 38.18 | 14.98 | 41.50 | |||||||||||
1964 | 21.37 | 20.88 | a | 27.34 | 42.87 | 58.85 | 62.77 | 69.02 | 62.23 | 55.52 | 44.94 | 35.48 | 18.45 | 43.31 | ||||||||||||
1965 | 13.48 | 13.48 | b | 23.34 | 39.37 | 56.27 | 60.62 | 64.16 | 64.35 | 54.57 | 47.79 | 33.35 | 27.92 | a | 41.56 | |||||||||||
1966 | 10.87 | 21.46 | 32.33 | a | 39.88 | 49.06 | 64.43 | 70.53 | 64.19 | 57.02 | 45.16 | 33.12 | 21.23 | 42.44 | ||||||||||||
1967 | 19.47 | 11.02 | a | 26.82 | 42.13 | 48.18 | 63.65 | 65.28 | a | 62.35 | 56.57 | 45.98 | 30.07 | 21.81 | 41.11 | |||||||||||
1968 | 14.03 | 16.41 | 34.32 | 44.05 | 51.27 | 62.72 | 66.87 | 65.76 | 59.95 | 50.16 | 34.30 | 22.57 | a | 43.53 | ||||||||||||
1969 | 16.52 | 20.57 | 25.26 | 44.43 | 54.77 | 56.97 | 66.40 | 69.31 | 58.02 | 45.15 | 32.87 | 22.82 | 42.76 | |||||||||||||
1970 | 10.68 | 16.25 | 25.81 | 45.35 | 53.19 | 64.77 | 69.92 | 66.35 | 58.47 | 49.45 | 33.70 | 20.94 | 42.91 | |||||||||||||
1971 | 9.52 | a | 17.18 | 24.44 | 41.67 | 50.90 | 67.35 | 64.87 | 63.16 | 59.50 | 54.18 | 34.05 | 22.82 | 42.47 | ||||||||||||
1972 | 10.56 | 13.33 | 23.98 | 37.50 | 56.77 | 61.58 | 66.27 | 65.95 | 56.18 | 44.02 | 32.98 | 17.25 | a | 40.53 | ||||||||||||
1973 | 19.98 | 20.62 | 37.65 | 41.68 | 50.65 | 64.72 | 68.69 | 68.61 | 58.03 | 52.82 | 34.05 | 20.21 | 44.81 | |||||||||||||
1974 | 16.03 | 15.41 | 28.35 | 44.48 | 51.06 | 59.83 | 68.16 | 65.02 | 52.73 | 46.00 | 35.18 | 25.63 | a | 42.33 | ||||||||||||
1975 | 18.02 | 19.50 | 24.90 | 36.90 | 59.74 | 64.48 | 70.52 | 67.37 | 53.97 | 49.47 | 38.50 | 21.11 | 43.71 | |||||||||||||
1976 | 12.06 | 24.93 | 28.39 | 45.25 | 51.15 | 66.65 | 68.95 | 65.68 | 56.10 | 41.90 | 26.88 | 10.48 | 41.54 | |||||||||||||
1977 | 6.61 | 19.61 | 34.05 | 46.57 | 61.05 | 61.22 | 70.66 | 62.76 | 58.07 | 46.45 | 33.07 | a | 18.03 | a | 43.18 | |||||||||||
1978 | 12.39 | 14.27 | 26.52 | 39.48 | 55.97 | 61.95 | 65.65 | 66.32 | 60.63 | 46.27 | 32.83 | 16.58 | a | 41.57 | ||||||||||||
1979 | 7.97 | 10.29 | 29.02 | 39.58 | 51.67 | a | 62.73 | 68.74 | 65.08 | 58.67 | 44.53 | 32.07 | 26.85 | 41.43 | ||||||||||||
1980 | 16.53 | 17.07 | 25.97 | 44.82 | 58.26 | 62.53 | 69.00 | 67.58 | 57.20 | 42.82 | 34.43 | 18.65 | 42.90 | |||||||||||||
1981 | 15.21 | 22.16 | 34.11 | 43.93 | 52.66 | 63.32 | 67.26 | 66.18 | 55.58 | 43.18 | 36.70 | 22.08 | 43.53 | |||||||||||||
1982 | 6.27 | 14.96 | 27.76 | 38.64 | b | 59.29 | 56.80 | 68.18 | c | 62.52 | 57.02 | 49.00 | 33.22 | 27.24 | 41.74 | |||||||||||
1983 | 20.26 | 26.50 | 30.77 | 40.17 | 48.45 | 63.28 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.24 | f | ||||||
1984 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.65 | a | 54.72 | a | 48.03 | 32.89 | c | 20.29 | 44.72 | g | ||
1985 | 10.87 | 13.70 | 32.70 | a | 43.73 | b | 56.16 | b | 59.05 | 64.67 | a | 64.22 | a | 56.97 | a | 45.55 | 27.67 | 7.69 | 40.25 | |||||||
1986 | 13.10 | 14.37 | a | 29.13 | 47.07 | a | 56.29 | 60.10 | 68.87 | 61.61 | 56.98 | 45.08 | 28.37 | 21.68 | 41.89 | |||||||||||
1987 | 18.89 | 23.19 | a | 32.76 | 46.00 | 55.10 | 67.77 | d | 71.20 | i | 65.37 | 57.97 | 40.63 | 35.27 | 24.81 | 42.52 | a | |||||||||
1988 | 8.90 | 10.43 | a | 26.92 | 42.07 | 56.55 | b | 65.88 | 69.10 | 68.56 | 57.30 | 40.61 | 35.45 | 18.84 | 41.72 | |||||||||||
1989 | 18.34 | 9.91 | 22.21 | c | 41.34 | h | 52.23 | 60.40 | 68.21 | 65.56 | 55.92 | 46.21 | 27.73 | 7.95 | 39.52 | a | ||||||||||
1990 | 21.21 | 17.00 | 30.32 | 45.37 | 49.55 | 61.52 | g | 66.02 | 64.90 | 57.65 | 43.71 | 36.68 | 20.23 | c | 41.15 | a | ||||||||||
1991 | 9.23 | 19.86 | 29.98 | 45.22 | a | 58.19 | 66.57 | 67.05 | 67.82 | 55.28 | 44.06 | 27.95 | 21.19 | 42.70 | ||||||||||||
1992 | 19.19 | 20.97 | 27.18 | 38.68 | 52.74 | 59.65 | 61.44 | 61.60 | 54.92 | 44.24 | 30.27 | 21.10 | 41.00 | |||||||||||||
1993 | 13.58 | 15.30 | 28.94 | 38.40 | 52.66 | 59.98 | 67.16 | 66.21 | 52.22 | 42.13 | 29.84 | a | 22.37 | 40.73 | ||||||||||||
1994 | 4.31 | 9.79 | 30.03 | 41.18 | 52.48 | 64.62 | b | 65.63 | 62.56 | 58.93 | 47.76 | 36.08 | 26.29 | 41.64 | ||||||||||||
1995 | 18.53 | 17.00 | 29.52 | 35.82 | 51.68 | 67.22 | a | 67.16 | 69.65 | a | 53.98 | 47.32 | 24.45 | 14.97 | 41.44 | |||||||||||
1996 | 9.02 | 11.74 | 20.73 | 36.35 | 49.10 | 62.42 | 63.60 | 65.60 | 58.22 | 44.53 | 27.98 | 20.33 | a | 39.13 | ||||||||||||
1997 | 13.03 | 18.88 | 25.15 | 39.20 | 46.19 | 64.67 | 65.71 | 61.31 | 57.63 | 45.13 | 30.60 | 26.61 | 41.18 | |||||||||||||
1998 | 19.95 | a | 29.73 | 30.40 | 44.23 | 59.24 | 62.68 | 66.95 | 67.40 | a | 60.00 | ----- | z | ----- | z | 24.98 | c | 46.56 | b | |||||||
1999 | 12.96 | c | 23.18 | 30.40 | 43.97 | a | 55.73 | 64.70 | 72.08 | l | 65.00 | f | 58.08 | e | 43.87 | e | 38.88 | e | 22.31 | d | 39.41 | b | ||||
2000 | 15.54 | e | 23.20 | d | 36.83 | b | 40.33 | c | 55.03 | a | 61.52 | a | 65.37 | 65.63 | 56.93 | 49.89 | 34.53 | a | 13.05 | 43.15 | ||||||
2001 | 21.93 | a | 16.93 | 27.69 | 45.48 | 55.98 | 62.18 | 67.13 | 69.32 | 56.38 | 45.84 | 41.27 | 29.24 | 44.95 | ||||||||||||
2002 | 23.95 | 24.98 | 23.84 | 41.02 | a | 47.26 | 64.37 | 71.02 | 66.76 | 60.30 | 42.32 | a | 31.33 | 23.89 | 43.42 | |||||||||||
2003 | 14.19 | 9.57 | g | 26.35 | 38.83 | 51.98 | 60.63 | 66.60 | 68.32 | 58.13 | 45.52 | 33.05 | 26.96 | c | 44.60 | a | ||||||||||
2004 | 11.15 | 19.19 | 30.66 | 42.08 | 49.98 | 59.53 | 65.26 | d | 61.61 | 62.32 | 47.02 | 36.57 | 20.26 | 42.14 | ||||||||||||
2005 | 13.67 | a | 23.77 | 24.45 | 44.53 | 50.42 | 67.07 | 68.84 | 70.47 | o | 60.95 | 49.92 | a | 34.38 | 20.11 | 41.65 | a | |||||||||
2006 | 25.90 | a | 16.32 | 30.38 | a | 42.08 | x | 55.50 | d | 62.10 | 70.31 | m | 65.02 | i | 55.93 | b | 42.76 | 37.19 | c | 27.22 | a | 39.25 | c | |||
2007 | 20.60 | 12.44 | a | 32.12 | b | 40.67 | d | 55.03 | 64.70 | 67.08 | 67.68 | a | 60.27 | 52.30 | c | 32.27 | 18.50 | 43.64 | ||||||||
2008 | 16.55 | 11.60 | 23.39 | 43.00 | j | 49.48 | b | 63.22 | a | 66.63 | h | 64.26 | 58.37 | g | 45.00 | y | ----- | z | ----- | z | 38.08 | f | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 14.90 | 17.80 | 28.06 | 41.96 | 53.39 | 62.84 | 67.14 | 65.46 | 57.24 | 46.67 | 33.19 | 20.91 | 42.31 | |||||||||||||
S.D. | 4.93 | 4.84 | 3.75 | 3.12 | 3.46 | 2.55 | 2.22 | 2.40 | 2.17 | 3.34 | 3.67 | 4.73 | 1.27 | |||||||||||||
SKEW | -0.05 | 0.19 | 0.24 | -0.33 | 0.17 | -0.24 | 0.08 | -0.07 | -0.06 | 0.43 | -0.39 | -0.71 | -0.02 | |||||||||||||
MAX | 25.90 | 29.73 | 37.65 | 48.48 | 61.05 | 67.77 | 73.16 | 70.35 | 62.32 | 55.13 | 41.27 | 29.24 | 44.95 | |||||||||||||
MIN | 4.31 | 8.80 | 19.48 | 33.53 | 46.19 | 56.80 | 61.44 | 60.35 | 52.22 | 40.61 | 24.45 | 7.69 | 39.13 | |||||||||||||
YRS | 59 | 58 | 59 | 56 | 59 | 58 | 55 | 57 | 59 | 58 | 58 | 59 | 49 |