YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 62.58 | l | 59.50 | 51.85 | 41.52 | 37.15 | 47.50 | h | ||||
1938 | ----- | z | ----- | z | ----- | z | ----- | z | 52.13 | ----- | z | 75.00 | 72.66 | f | ----- | z | ----- | z | ----- | z | 33.97 | 53.70 | i | |||
1939 | 34.53 | 28.07 | 39.40 | 48.67 | 55.50 | a | 57.05 | a | 68.08 | 66.52 | 58.47 | 47.89 | 39.18 | 37.63 | a | 48.42 | ||||||||||
1940 | 32.84 | 37.02 | c | 42.85 | 47.38 | 56.55 | 64.05 | a | 67.82 | a | 66.06 | 62.24 | g | 50.42 | 33.21 | a | 34.98 | 48.47 | a | |||||||
1941 | 34.27 | 37.80 | 42.72 | f | 47.29 | a | 54.27 | a | 58.95 | 68.91 | b | 65.98 | 53.26 | a | 46.63 | a | 40.72 | 35.32 | 49.40 | a | ||||||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.39 | h | 49.63 | a | 35.79 | a | 32.04 | e | 39.15 | i |
1943 | 23.95 | 33.24 | a | 37.82 | ----- | z | ----- | z | 55.45 | k | 64.52 | a | 61.34 | 58.53 | 47.44 | 37.43 | a | ----- | z | 45.53 | d | |||||
1944 | 22.54 | q | 30.64 | 34.66 | f | 47.11 | b | 54.66 | 58.63 | 65.86 | b | 63.55 | a | 60.11 | c | 51.35 | d | 34.21 | b | 30.12 | r | 51.79 | c | |||
1945 | 32.27 | a | 36.37 | a | 37.88 | a | 44.00 | 53.57 | a | 57.03 | 66.53 | 64.02 | 54.36 | b | 42.70 | k | 35.40 | 28.45 | 46.35 | a | ||||||
1946 | 29.35 | a | 29.35 | b | 41.02 | a | 47.92 | 51.94 | 56.62 | 64.02 | a | 63.95 | 52.59 | a | 42.50 | 35.08 | 35.66 | b | 45.83 | |||||||
1947 | 23.14 | b | 35.43 | 42.66 | b | 49.09 | b | 58.63 | 56.47 | 66.68 | a | ----- | z | 60.78 | 49.85 | 36.77 | 33.78 | v | 47.95 | b | ||||||
1948 | ----- | z | 22.62 | m | ----- | z | ----- | z | 53.24 | b | 62.92 | 63.48 | 63.37 | 57.10 | 47.55 | 35.57 | 18.40 | f | 54.75 | e | ||||||
1949 | 7.85 | 29.98 | 41.10 | 49.50 | 56.94 | 59.55 | 66.20 | a | 67.11 | 60.34 | a | 43.55 | 43.90 | 31.63 | a | 46.47 | ||||||||||
1950 | ----- | z | ----- | z | ----- | z | 44.47 | o | 50.31 | 58.67 | 65.64 | b | 65.15 | 57.08 | 51.37 | 40.73 | 38.94 | 53.48 | d | |||||||
1951 | 28.72 | a | 34.89 | 35.39 | 46.52 | c | 54.40 | a | 57.43 | 67.07 | a | 63.18 | a | 58.83 | 46.81 | 36.88 | 28.44 | 46.55 | ||||||||
1952 | 26.72 | a | 30.47 | 35.70 | a | 48.98 | 54.37 | 58.80 | 65.19 | 64.61 | 60.20 | 51.84 | 32.03 | 31.11 | 46.67 | |||||||||||
1953 | 39.68 | a | 33.30 | 38.94 | 44.63 | 49.66 | 56.08 | 64.84 | 64.87 | a | 59.48 | 49.69 | 42.47 | 33.85 | 48.13 | |||||||||||
1954 | 34.20 | a | 39.91 | 37.24 | 45.75 | 54.30 | a | 56.67 | a | 66.43 | c | 62.24 | n | 57.18 | 46.82 | 42.07 | 30.17 | a | 46.43 | a | ||||||
1955 | 27.53 | a | 27.68 | 31.32 | 41.38 | 50.24 | 61.12 | 65.00 | 64.30 | a | 56.80 | 49.57 | b | 32.03 | a | 31.48 | 44.87 | |||||||||
1956 | 30.23 | 26.28 | 37.00 | 47.45 | 55.84 | 58.00 | 67.85 | 64.40 | 58.52 | 46.65 | 35.33 | a | 31.55 | a | 46.59 | |||||||||||
1957 | 18.03 | a | 33.36 | c | 41.30 | a | 48.22 | 55.87 | 61.86 | a | 66.56 | 63.39 | 60.70 | 47.95 | 35.45 | 36.50 | 47.43 | |||||||||
1958 | 34.53 | 40.59 | a | 38.44 | 45.42 | 59.32 | 64.13 | 69.95 | 68.87 | 58.25 | 50.52 | 38.43 | a | 38.10 | 50.55 | |||||||||||
1959 | 33.85 | a | 35.64 | 40.81 | 49.88 | a | 49.26 | 61.07 | 68.68 | 61.79 | 54.87 | 48.10 | 36.73 | 31.34 | 47.67 | |||||||||||
1960 | 23.69 | 31.57 | 40.44 | 47.92 | 49.47 | 60.15 | 70.43 | a | 62.15 | a | 58.68 | 49.15 | 37.35 | 31.71 | 46.89 | |||||||||||
1961 | 33.48 | 39.57 | a | 40.56 | 45.63 | 52.79 | 64.20 | 69.08 | 72.19 | 53.37 | 47.44 | 35.08 | 30.82 | 48.69 | ||||||||||||
1962 | 24.82 | a | 32.35 | b | 37.44 | 49.42 | 49.57 | b | 59.32 | 64.18 | a | 62.90 | f | 58.40 | a | 47.78 | a | 41.20 | b | 34.89 | 45.40 | a | ||||
1963 | 24.19 | b | 42.39 | 40.02 | 43.41 | b | 55.03 | a | ----- | z | 64.67 | a | 65.93 | b | 63.14 | a | 51.40 | 41.17 | 31.39 | 47.52 | a | |||||
1964 | 29.57 | b | 29.91 | 36.55 | 43.68 | 51.97 | 58.78 | 67.40 | 62.29 | c | 54.78 | 49.23 | a | 38.40 | 30.03 | a | 46.05 | |||||||||
1965 | 31.13 | 36.81 | a | 36.92 | 48.03 | 51.60 | 59.92 | 66.45 | 65.50 | 52.28 | a | 52.11 | ----- | z | 33.97 | 48.61 | a | |||||||||
1966 | 31.25 | m | 31.46 | b | 39.15 | d | 43.04 | f | 52.27 | e | 56.02 | b | 65.44 | g | 64.90 | e | 62.85 | d | 47.96 | f | 40.38 | f | 36.00 | e | 48.95 | e |
1967 | 44.15 | 38.16 | c | 39.43 | d | 42.42 | j | 51.94 | g | 62.44 | l | 69.88 | j | 70.83 | b | 64.68 | 49.70 | a | 39.04 | c | 28.19 | d | 46.77 | d | ||
1968 | 31.34 | f | 38.70 | d | 43.46 | c | 43.17 | d | 51.88 | k | 63.19 | n | 69.31 | g | 62.21 | l | 58.47 | m | 47.13 | l | ----- | z | ----- | z | 41.78 | i |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.08 | 44.19 | 38.60 | 33.77 | 44.16 | h | ||||
1970 | 32.66 | 38.23 | 38.39 | 41.57 | 53.11 | 63.20 | 67.68 | 66.29 | 52.40 | 45.45 | 39.27 | 29.89 | 47.34 | |||||||||||||
1971 | 33.63 | 36.11 | 36.58 | 46.12 | 54.69 | 57.63 | 66.19 | 70.06 | 52.82 | 44.77 | 38.18 | 29.37 | 47.18 | |||||||||||||
1972 | 28.37 | 35.31 | 43.19 | 43.05 | 55.44 | 61.48 | 66.02 | 67.85 | 54.85 | 48.16 | 39.38 | 25.23 | 47.36 | |||||||||||||
1973 | 28.27 | 37.00 | 41.21 | 44.90 | 55.73 | 61.07 | 67.65 | 66.08 | 58.83 | 47.55 | 36.65 | 36.18 | 48.43 | |||||||||||||
1974 | 25.05 | 37.29 | 40.37 | 46.38 | 50.45 | 64.72 | 66.60 | 66.06 | 59.43 | 47.90 | 40.88 | 36.06 | w | 49.56 | a | |||||||||||
1975 | 30.92 | m | 30.82 | k | 38.00 | 41.42 | 51.92 | 59.28 | 70.66 | 63.44 | 59.00 | 49.63 | 36.67 | 34.65 | 50.47 | b | ||||||||||
1976 | 30.56 | 32.84 | 36.47 | 45.07 | 54.05 | 57.60 | 67.48 | 63.61 | 60.83 | 48.19 | 40.93 | 31.60 | 47.44 | |||||||||||||
1977 | 24.63 | 37.20 | 38.03 | 49.45 | 50.81 | 64.95 | 66.47 | 68.61 | 57.03 | 49.37 | 37.22 | 36.40 | a | 48.35 | ||||||||||||
1978 | 35.18 | 38.55 | 45.57 | a | 46.82 | 51.35 | 61.12 | 68.03 | 66.87 | 57.53 | 49.02 | 33.38 | 24.52 | 48.16 | ||||||||||||
1979 | 17.93 | a | 33.61 | 41.15 | 46.90 | 55.44 | 61.73 | 68.13 | 67.23 | 61.90 | 51.32 | 33.60 | 36.92 | 47.99 | ||||||||||||
1980 | 28.45 | a | 38.91 | a | 39.31 | 49.37 | 54.87 | 58.72 | 66.85 | 62.58 | 60.60 | 47.98 | a | 39.52 | 35.52 | 48.56 | ||||||||||
1981 | 35.21 | 35.66 | 42.63 | 48.08 | 54.00 | 59.95 | 65.05 | 68.95 | 57.96 | d | 46.82 | 41.53 | 34.37 | 49.19 | ||||||||||||
1982 | 28.93 | a | 30.68 | 40.12 | g | 43.50 | 52.68 | 64.37 | 66.06 | 67.13 | 57.38 | 48.42 | 34.52 | b | 32.35 | 47.82 | a | |||||||||
1983 | 35.82 | 39.56 | a | 43.98 | 45.59 | b | 55.48 | 60.03 | 64.95 | b | 70.10 | a | 55.07 | c | 49.50 | 40.83 | 23.50 | a | 48.70 | |||||||
1984 | 27.81 | 32.10 | 41.69 | 45.65 | g | 51.48 | 58.38 | 66.15 | a | 67.27 | a | 56.65 | 44.68 | 38.88 | a | 24.63 | 46.34 | a | ||||||||
1985 | 20.89 | 26.16 | 36.55 | 49.23 | 55.32 | 61.48 | 70.07 | a | 63.77 | 52.27 | 46.48 | 26.43 | 19.73 | a | 44.03 | |||||||||||
1986 | 33.68 | 38.00 | 46.16 | 46.31 | c | 54.95 | 64.77 | 63.26 | 69.37 | 54.00 | 48.85 | e | 37.95 | 31.79 | b | 49.09 | ||||||||||
1987 | 27.27 | 36.50 | 42.63 | a | 53.12 | 57.15 | 63.02 | 65.94 | 63.82 | 60.95 | 48.32 | 39.67 | 30.98 | 49.11 | ||||||||||||
1988 | 28.40 | 35.29 | a | 41.03 | 50.20 | 54.23 | a | 61.23 | 66.10 | b | 65.55 | 59.02 | 55.47 | a | 39.12 | 28.94 | 48.71 | |||||||||
1989 | 28.29 | 22.18 | 39.85 | 50.33 | 53.68 | 62.62 | 67.35 | 63.97 | 58.03 | 46.08 | a | 39.78 | a | 32.60 | a | 47.06 | ||||||||||
1990 | 33.55 | 32.45 | 41.52 | 50.07 | 51.31 | 59.58 | 67.56 | 65.68 | 61.73 | 45.12 | c | 39.74 | a | 22.22 | a | 47.54 | ||||||||||
1991 | 25.52 | 38.75 | 38.32 | 44.24 | a | 49.52 | 56.07 | 64.87 | 67.10 | 58.68 | 47.18 | a | 36.67 | 33.47 | a | 46.70 | ||||||||||
1992 | 33.27 | a | 40.66 | 44.65 | 48.62 | a | 56.50 | 62.98 | 64.32 | a | 65.40 | 56.12 | 49.40 | 35.22 | 25.42 | a | 48.55 | |||||||||
1993 | 22.87 | a | 24.59 | 38.35 | 44.68 | 57.74 | 58.07 | 58.98 | 61.84 | b | 56.14 | a | 48.53 | 30.73 | 33.19 | b | 44.64 | |||||||||
1994 | 36.27 | a | 31.27 | 41.69 | 48.65 | 56.15 | a | 58.52 | 67.29 | 66.39 | 59.92 | 45.82 | 31.43 | 29.78 | b | 47.76 | ||||||||||
1995 | 31.95 | 38.07 | 40.27 | 44.72 | 52.50 | 58.45 | 65.37 | 61.55 | 60.17 | 44.50 | a | 42.03 | 33.29 | 47.74 | ||||||||||||
1996 | 32.74 | 31.22 | 41.47 | 46.95 | 50.47 | 59.55 | 67.08 | 64.50 | 54.37 | 47.12 | a | 38.83 | a | 32.60 | a | 47.24 | ||||||||||
1997 | 30.50 | 34.75 | 41.66 | 44.43 | 56.24 | 59.47 | 63.53 | 67.07 | a | 60.00 | b | 47.23 | 40.47 | 31.02 | 48.03 | |||||||||||
1998 | 34.29 | 38.11 | 40.60 | 46.32 | 53.53 | a | 58.73 | 69.06 | 67.37 | 63.00 | b | 46.43 | a | 40.43 | a | 29.66 | 48.96 | |||||||||
1999 | 35.27 | 34.89 | 40.15 | 43.25 | 51.29 | 58.73 | b | 63.45 | b | 69.05 | a | 56.72 | 48.71 | 44.04 | b | 31.68 | 48.10 | |||||||||
2000 | 32.31 | 38.60 | 40.80 | f | 50.60 | 54.56 | 59.76 | c | 67.52 | d | 65.31 | 57.97 | 47.40 | e | 32.05 | 30.60 | 48.79 | a | ||||||||
2001 | 28.24 | 31.84 | 41.82 | 44.90 | 56.00 | 59.43 | 66.28 | a | 68.45 | 61.45 | b | ----- | z | ----- | z | ----- | z | 50.94 | c | |||||||
2002 | ----- | z | ----- | z | 37.30 | d | 45.73 | 51.52 | b | 61.78 | 69.17 | a | 61.92 | a | 57.21 | a | 43.12 | a | 38.91 | b | 34.19 | d | 50.08 | b | ||
2003 | 37.02 | a | 33.84 | 42.55 | b | 45.00 | ----- | z | 62.03 | 70.65 | 68.71 | 60.50 | 52.13 | a | 33.77 | 34.75 | a | 49.18 | a | |||||||
2004 | 28.69 | 32.76 | 43.42 | 48.18 | 53.03 | 60.55 | 68.61 | 67.98 | 56.45 | 49.00 | 38.19 | a | 33.69 | 48.38 | ||||||||||||
2005 | 31.81 | 34.64 | 42.02 | 46.52 | 55.16 | 58.27 | 67.34 | 66.03 | 55.32 | 48.90 | 36.30 | 25.05 | a | 47.28 | ||||||||||||
2006 | 35.98 | a | 33.48 | 38.60 | 46.22 | e | 55.18 | l | 61.14 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.57 | h | ||
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 | 27.47 | l | ----- | z |
2009 | 28.46 | g | 32.00 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.90 | 34.39 | 40.00 | 46.62 | 53.65 | 60.05 | 66.74 | 65.73 | 57.96 | 48.18 | 37.58 | 31.76 | 47.58 | |||||||||||||
S.D. | 5.83 | 4.23 | 2.74 | 2.52 | 2.43 | 2.44 | 2.32 | 2.50 | 2.94 | 2.41 | 3.44 | 4.03 | 1.28 | |||||||||||||
SKEW | -0.92 | -0.60 | -0.29 | -0.02 | 0.01 | 0.35 | 0.21 | 0.29 | -0.18 | 0.09 | -0.61 | -0.78 | -0.65 | |||||||||||||
MAX | 44.15 | 42.39 | 46.16 | 53.12 | 59.32 | 64.95 | 75.00 | 72.19 | 64.68 | 55.47 | 44.04 | 38.94 | 50.55 | |||||||||||||
MIN | 7.85 | 22.18 | 31.32 | 41.38 | 49.26 | 56.02 | 58.98 | 61.34 | 52.27 | 42.50 | 26.43 | 19.73 | 44.03 | |||||||||||||
YRS | 59 | 62 | 60 | 60 | 62 | 61 | 63 | 61 | 65 | 64 | 64 | 62 | 42 |