YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 65.29 | 64.27 | 56.97 | a | 46.95 | b | 31.73 | b | 22.14 | b | 47.89 | f | ||
1949 | 6.34 | 24.41 | 34.48 | a | 47.12 | 53.26 | 58.33 | 67.25 | a | 67.00 | h | 58.85 | 41.08 | 44.77 | 28.37 | 42.21 | a | |||||||||
1950 | 23.65 | 33.83 | a | 34.68 | 42.05 | a | 47.67 | b | 54.65 | j | 66.25 | q | 64.73 | 56.28 | 51.65 | 40.52 | b | 37.07 | b | 43.21 | b | |||||
1951 | 25.00 | a | 32.45 | 30.85 | a | 45.22 | 50.95 | 56.17 | 69.19 | 65.47 | a | 57.76 | a | 43.81 | 34.52 | 22.52 | 44.49 | |||||||||
1952 | 21.97 | 24.57 | 27.12 | f | 43.88 | d | 53.13 | 56.85 | 66.68 | 64.98 | h | 59.00 | c | 52.08 | 30.23 | 31.95 | 44.03 | b | ||||||||
1953 | 38.65 | 31.52 | 37.00 | 40.47 | 42.64 | c | 56.98 | g | 69.21 | 64.98 | 60.22 | 47.84 | 41.66 | a | 27.26 | 45.58 | a | |||||||||
1954 | 31.24 | 37.38 | 32.58 | 45.45 | 55.34 | c | 55.15 | 69.11 | 63.45 | 55.95 | b | 47.46 | c | 40.57 | b | 25.76 | 46.62 | |||||||||
1955 | 17.23 | a | 22.35 | a | 29.74 | d | 38.16 | b | 47.66 | 58.85 | 65.76 | 68.92 | 56.67 | 47.97 | a | 33.18 | 30.95 | 43.12 | ||||||||
1956 | 31.68 | 24.26 | 35.41 | c | 43.67 | 52.52 | 58.24 | a | 68.84 | 64.53 | 58.70 | 44.56 | 34.00 | 30.55 | a | 45.58 | ||||||||||
1957 | 20.43 | c | 34.50 | 36.71 | 41.57 | 50.23 | 59.75 | 66.90 | a | 65.31 | 58.90 | 45.16 | 30.03 | 32.87 | 45.20 | |||||||||||
1958 | 26.31 | 36.19 | b | 32.66 | 41.30 | 58.50 | 59.60 | 66.68 | 70.08 | 57.08 | 50.37 | 37.67 | 37.28 | a | 47.81 | |||||||||||
1959 | 33.45 | b | 30.27 | 36.92 | 46.10 | 45.40 | 62.82 | 70.44 | 65.34 | 53.50 | 47.47 | 36.90 | 27.69 | 46.36 | ||||||||||||
1960 | 23.55 | a | 26.10 | 37.98 | 43.55 | 49.97 | 62.28 | a | 72.40 | 64.48 | 60.18 | 46.95 | b | 36.87 | 28.00 | 46.03 | ||||||||||
1961 | 32.37 | 34.77 | 36.29 | 42.02 | 51.55 | 65.17 | 69.68 | 70.15 | 51.73 | 45.94 | 34.80 | 27.60 | 46.84 | |||||||||||||
1962 | 22.42 | 31.59 | 31.35 | 47.09 | a | 48.82 | 59.35 | 65.07 | a | 63.69 | 59.23 | 49.58 | 38.74 | a | 34.79 | 45.98 | ||||||||||
1963 | 23.26 | 39.88 | 35.87 | 39.38 | 53.32 | a | 54.68 | 64.39 | 66.82 | 62.70 | 52.92 | 38.70 | 30.69 | 46.88 | ||||||||||||
1964 | 25.19 | 24.57 | 29.84 | 39.70 | 49.66 | 56.37 | 68.39 | 63.61 | 55.02 | 50.53 | 34.75 | 29.40 | 43.92 | |||||||||||||
1965 | 30.31 | 32.75 | 34.24 | 44.90 | 46.84 | 56.88 | 66.50 | 63.32 | 50.95 | 50.84 | 40.37 | 28.11 | 45.50 | |||||||||||||
1966 | 28.31 | 27.95 | 36.19 | 42.37 | 56.73 | 59.07 | 67.84 | 67.44 | 60.72 | 46.08 | 39.57 | 29.66 | 46.83 | |||||||||||||
1967 | 31.61 | 34.64 | 36.90 | 37.05 | 49.83 | a | 57.70 | 71.00 | 71.32 | 62.85 | 47.85 | 39.02 | 26.00 | d | 47.15 | |||||||||||
1968 | 28.26 | 39.43 | 38.81 | 38.88 | 50.16 | 59.40 | 71.21 | 60.65 | 56.30 | 47.35 | 35.70 | 28.37 | 46.21 | |||||||||||||
1969 | 31.34 | 29.34 | 31.16 | 43.98 | 55.55 | 58.75 | 67.81 | 69.93 | a | 60.02 | 39.85 | 36.82 | 31.16 | 46.31 | ||||||||||||
1970 | 30.98 | 37.95 | ----- | z | 35.82 | 50.43 | a | 59.84 | a | 68.38 | c | 70.57 | a | 52.26 | e | ----- | z | 38.64 | a | 27.15 | a | 47.20 | b | |||
1971 | 30.89 | 31.48 | 33.02 | 42.11 | c | 50.19 | 56.83 | c | 68.88 | j | 70.86 | i | 51.60 | e | 44.29 | j | 35.63 | c | 22.60 | j | 41.47 | d | ||||
1972 | 25.35 | e | 33.85 | f | 44.42 | l | 40.92 | j | 52.12 | s | 62.65 | c | 66.39 | d | 67.25 | o | 50.53 | n | ----- | z | ----- | z | ----- | z | 51.46 | i |
1973 | ----- | z | ----- | z | ----- | z | ----- | z | 54.91 | h | 59.28 | c | 68.48 | g | 67.38 | b | 56.67 | c | 46.66 | c | 36.30 | c | 30.89 | d | 49.53 | f |
1974 | 26.82 | 30.11 | 36.25 | e | 41.52 | 49.30 | p | 63.73 | d | 65.86 | f | 64.54 | f | 59.17 | c | 47.65 | h | 39.44 | e | 31.60 | j | 42.43 | e | |||
1975 | 26.29 | b | 28.02 | a | 33.97 | 35.88 | ----- | z | 57.10 | 72.36 | c | 64.33 | g | 60.04 | d | 46.58 | 35.05 | 36.00 | i | 43.92 | c | |||||
1976 | 27.03 | 32.85 | e | 31.73 | e | 43.29 | m | 55.16 | c | 58.90 | f | 69.85 | n | 61.88 | e | 63.25 | v | 45.98 | b | 40.05 | b | 31.81 | 40.81 | d | ||
1977 | 27.21 | 32.21 | n | 33.16 | 45.20 | h | 45.89 | c | 61.19 | v | 68.27 | c | 67.81 | 57.17 | a | 49.71 | 37.80 | 34.98 | 46.89 | c | ||||||
1978 | 32.35 | 33.73 | d | 41.90 | f | 41.97 | a | 46.43 | a | 59.26 | a | 67.42 | 64.18 | 53.74 | c | 50.05 | a | 34.02 | 22.85 | 46.00 | a | |||||
1979 | 20.32 | 32.88 | 36.17 | a | 42.12 | 51.63 | 61.13 | 68.31 | 66.55 | 62.75 | 51.18 | 32.19 | a | 33.97 | a | 46.60 | ||||||||||
1980 | 27.52 | 37.46 | b | 33.77 | 46.07 | 50.37 | 57.25 | 69.08 | 63.70 | c | 57.40 | 46.61 | 36.80 | 33.42 | 46.62 | |||||||||||
1981 | 33.55 | 32.64 | 36.03 | 45.60 | 49.19 | 60.80 | 67.77 | 70.10 | k | 60.78 | a | 43.19 | d | 39.03 | a | 38.18 | i | 46.86 | b | |||||||
1982 | 25.71 | e | 28.28 | a | 36.31 | ----- | z | 48.80 | d | 58.55 | a | 65.15 | 67.95 | 56.44 | d | 44.37 | a | 32.72 | a | 29.12 | b | 44.85 | a | |||
1983 | 33.31 | 33.95 | 38.00 | a | 38.58 | 49.48 | 57.60 | 64.73 | 69.23 | 58.30 | 49.19 | 37.57 | 26.29 | 46.35 | ||||||||||||
1984 | 22.44 | 26.47 | 35.02 | 39.13 | 52.32 | 56.37 | 69.00 | 69.36 | b | 56.58 | l | 41.08 | 35.96 | d | 20.50 | l | 44.71 | b | ||||||||
1985 | 19.18 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.18 | k | |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1993 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1994 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1995 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1996 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1997 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1998 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2000 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | 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 |
2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2011 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2012 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2013 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2014 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2015 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.71 | 31.47 | 34.62 | 42.02 | 50.61 | 58.93 | 68.01 | 66.24 | 57.53 | 47.24 | 36.73 | 29.63 | 46.02 | |||||||||||||
S.D. | 5.92 | 4.68 | 2.48 | 3.17 | 3.46 | 2.47 | 2.10 | 2.81 | 3.16 | 3.23 | 3.28 | 3.88 | 1.13 | |||||||||||||
SKEW | -0.98 | -0.16 | -0.40 | -0.24 | 0.12 | 0.63 | 0.26 | 0.13 | -0.38 | -0.40 | -0.04 | 0.03 | -1.06 | |||||||||||||
MAX | 38.65 | 39.88 | 38.81 | 47.12 | 58.50 | 65.17 | 72.40 | 71.32 | 62.85 | 52.92 | 44.77 | 37.28 | 47.81 | |||||||||||||
MIN | 6.34 | 22.35 | 29.74 | 35.82 | 42.64 | 54.68 | 64.39 | 60.65 | 50.95 | 39.85 | 30.03 | 22.14 | 43.12 | |||||||||||||
YRS | 36 | 33 | 31 | 31 | 32 | 32 | 32 | 30 | 34 | 33 | 36 | 31 | 20 |