YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.50 | x | 67.95 | 56.18 | 39.98 | 17.17 | a | 21.82 | 40.62 | g | ||||
1960 | 7.63 | a | 11.57 | 15.03 | p | 40.47 | a | 52.02 | 59.93 | 66.83 | h | 67.56 | 56.35 | 44.21 | 30.15 | 10.95 | 38.08 | b | ||||||||
1961 | 5.35 | 20.00 | 32.10 | b | 35.33 | 51.26 | 64.32 | 66.42 | a | 67.94 | 55.73 | 46.00 | 28.10 | 11.23 | 40.31 | |||||||||||
1962 | 1.89 | 8.25 | 25.90 | 37.67 | 54.90 | 61.04 | b | 63.23 | 64.18 | 52.93 | 47.81 | b | 31.98 | 13.63 | 38.62 | |||||||||||
1963 | 1.77 | c | 7.46 | 29.11 | 42.75 | 51.24 | 64.40 | 68.21 | 63.79 | 57.15 | 53.56 | 32.48 | 5.81 | 39.81 | ||||||||||||
1964 | 13.58 | 13.69 | 19.97 | 42.20 | 57.23 | 61.26 | a | 68.98 | 61.58 | 54.02 | 44.66 | 29.83 | 6.47 | 39.46 | ||||||||||||
1965 | 2.52 | 5.79 | 14.13 | 40.03 | 53.52 | a | 60.78 | 64.26 | b | 62.97 | 47.85 | 45.50 | 27.10 | a | 21.06 | 37.13 | ||||||||||
1966 | -4.84 | 9.61 | 29.37 | 36.40 | 48.68 | 62.45 | 69.68 | 62.29 | 55.25 | 43.95 | a | 24.59 | a | 13.45 | 37.57 | |||||||||||
1967 | 9.56 | 3.54 | 25.23 | 40.45 | a | 47.21 | 60.77 | 65.27 | 63.03 | 56.70 | 42.92 | 27.27 | 14.77 | 38.06 | ||||||||||||
1968 | 7.71 | 9.76 | 32.84 | 42.23 | 51.39 | 61.00 | 65.35 | 63.98 | 56.27 | 47.18 | 29.90 | 10.30 | a | 39.83 | ||||||||||||
1969 | 4.65 | 14.73 | 21.08 | 43.83 | 53.29 | 55.53 | 66.18 | 67.82 | 56.90 | 40.52 | 29.30 | 17.13 | 39.25 | |||||||||||||
1970 | 1.25 | a | 11.86 | 19.31 | 39.02 | b | 51.30 | c | 66.11 | b | 69.62 | a | 66.48 | 56.77 | 45.11 | 27.64 | b | 9.19 | 38.64 | |||||||
1971 | -1.13 | 12.43 | 22.98 | 41.20 | 50.81 | 65.70 | 62.78 | a | 63.31 | 56.53 | 48.26 | 27.28 | 11.39 | 38.46 | ||||||||||||
1972 | 0.16 | 5.33 | 21.73 | 36.92 | 57.81 | 62.15 | 65.10 | 64.89 | 53.52 | 41.69 | 26.17 | 6.27 | a | 36.81 | ||||||||||||
1973 | 12.31 | 15.36 | 36.52 | 41.28 | a | 51.66 | 63.29 | a | 66.68 | a | 67.89 | 54.43 | 49.97 | 28.98 | 10.40 | g | 44.40 | a | ||||||||
1974 | 3.97 | a | 15.13 | a | 22.02 | f | 42.61 | b | 48.81 | 62.73 | 71.27 | a | 62.68 | 51.89 | c | 46.08 | 29.57 | 19.66 | 41.31 | a | ||||||
1975 | 10.07 | c | 8.82 | n | 20.53 | 35.40 | i | 58.23 | 61.27 | 71.47 | b | 64.79 | 52.50 | a | 47.57 | a | 30.27 | 12.95 | a | 42.96 | b | |||||
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.37 | e | 21.81 | a | 3.96 | g | 29.09 | j |
1977 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.92 | a | 53.85 | 42.90 | a | 24.09 | a | 8.87 | 37.72 | g | ||
1978 | 0.34 | 4.71 | 23.11 | 39.55 | 55.84 | 60.18 | 65.74 | 64.71 | 58.18 | 43.37 | 24.43 | 6.00 | 37.18 | |||||||||||||
1979 | -5.76 | 2.79 | 20.73 | 35.12 | 47.06 | 59.18 | 64.35 | u | 59.65 | 53.48 | 39.27 | 26.62 | a | 18.31 | 32.40 | a | ||||||||||
1980 | 4.58 | 8.78 | 18.00 | 43.55 | 56.98 | 60.92 | 67.16 | 63.53 | 52.47 | 39.31 | 29.08 | 10.27 | a | 37.89 | ||||||||||||
1981 | 9.23 | 16.54 | 30.11 | 41.43 | 53.06 | 60.55 | 66.48 | 62.90 | a | 53.17 | 40.55 | 33.67 | 12.76 | 40.04 | ||||||||||||
1982 | -8.26 | 7.88 | 20.82 | a | 35.22 | 56.08 | 56.00 | 66.53 | 62.80 | a | 53.14 | a | 44.76 | 24.47 | 19.31 | 36.56 | ||||||||||
1983 | 12.03 | 18.52 | 28.53 | 38.28 | 49.26 | 62.00 | 69.63 | 68.68 | a | 56.05 | a | 43.29 | 28.86 | a | -1.45 | a | 39.47 | |||||||||
1984 | 5.26 | 22.76 | 20.54 | c | 42.85 | 50.62 | g | 63.09 | h | 64.38 | k | 66.00 | g | 51.40 | o | 45.82 | i | 27.47 | l | 7.55 | l | 22.85 | h | |||
1985 | ----- | z | ----- | z | ----- | z | 38.78 | l | 49.57 | i | 47.47 | l | 57.95 | l | 51.25 | i | 48.00 | m | ----- | z | ----- | z | ----- | z | ----- | z |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | 44.37 | l | 53.05 | i | ----- | 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 | 67.17 | o | 66.25 | i | 67.57 | h | 51.83 | i | 42.30 | i | 19.75 | n | 12.39 | m | ----- | z |
1992 | 16.56 | m | 23.60 | n | 26.50 | o | 36.86 | l | 57.16 | l | 59.75 | h | 59.79 | j | 60.34 | l | 51.83 | j | 40.47 | p | 26.86 | l | 12.62 | k | ----- | z |
1993 | 6.79 | j | 11.28 | j | 26.98 | i | 38.39 | h | 52.52 | k | 58.48 | h | 63.24 | j | 66.28 | k | 48.83 | j | 41.42 | k | 23.40 | j | 14.12 | j | ----- | z |
1994 | -3.68 | l | 1.71 | i | 24.69 | j | 39.57 | h | 55.22 | m | 62.59 | h | 64.31 | m | 62.35 | h | 57.23 | j | 47.18 | l | 30.79 | m | 18.30 | k | ----- | z |
1995 | 8.82 | k | 7.87 | i | 23.90 | k | 34.32 | k | 51.03 | l | 67.25 | h | 62.60 | u | 67.84 | o | 54.03 | l | 44.29 | q | 20.65 | q | 9.16 | l | ----- | z |
1996 | -4.28 | o | 5.50 | p | ----- | z | 36.72 | l | 50.25 | k | 61.63 | k | 65.14 | j | 66.27 | t | 56.18 | k | 39.67 | y | 21.15 | m | 7.92 | m | ----- | z |
1997 | 2.14 | j | 13.14 | j | 22.70 | p | 36.70 | h | 46.14 | j | 64.31 | i | 66.83 | m | 62.31 | m | 58.14 | h | 42.53 | n | 23.46 | p | 23.74 | n | ----- | z |
1998 | 12.89 | m | 26.77 | m | 26.74 | n | 43.05 | k | 59.46 | r | 60.61 | l | 67.58 | l | 66.43 | q | 59.11 | l | 43.31 | o | 29.96 | r | 18.68 | l | ----- | z |
1999 | 2.62 | o | ----- | z | 29.76 | l | 43.17 | o | 53.46 | q | 60.76 | m | 69.10 | p | 63.44 | w | 54.57 | p | 40.75 | q | 38.21 | r | 19.06 | o | ----- | z |
2000 | 9.00 | x | 13.92 | w | 31.31 | w | 40.25 | p | 54.07 | q | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2002 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2004 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 4.08 | 11.20 | 24.41 | 39.93 | 52.62 | 61.43 | 67.00 | 64.35 | 54.64 | 44.19 | 27.63 | 12.18 | 38.53 | |||||||||||||
S.D. | 5.83 | 5.46 | 5.69 | 2.81 | 3.39 | 2.58 | 2.48 | 2.65 | 2.30 | 3.80 | 3.56 | 5.70 | 1.21 | |||||||||||||
SKEW | -0.31 | 0.34 | 0.41 | -0.43 | 0.11 | -0.41 | 0.22 | -0.02 | -0.93 | 0.24 | -0.94 | -0.19 | -0.15 | |||||||||||||
MAX | 13.58 | 22.76 | 36.52 | 43.83 | 58.23 | 66.11 | 71.47 | 68.68 | 58.18 | 53.56 | 33.67 | 21.82 | 40.31 | |||||||||||||
MIN | -8.26 | 2.79 | 14.13 | 35.12 | 47.06 | 55.53 | 62.78 | 58.92 | 47.85 | 36.37 | 17.17 | -1.45 | 36.56 | |||||||||||||
YRS | 23 | 22 | 21 | 22 | 22 | 22 | 20 | 24 | 24 | 25 | 25 | 23 | 17 |