YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1924 | 22.23 | a | 36.10 | 33.52 | 44.83 | 60.71 | 69.10 | 76.71 | 75.68 | 66.62 | d | 49.89 | c | 35.63 | c | 18.90 | b | 49.16 | ||||||||
1925 | 24.93 | c | 32.65 | e | 42.48 | f | 51.28 | l | 61.32 | f | 76.29 | p | 78.71 | 73.55 | 65.14 | b | 46.67 | a | 35.71 | b | 30.76 | b | 48.52 | d | ||
1926 | 27.85 | e | 32.71 | d | 40.17 | b | 57.12 | f | 61.87 | 72.21 | b | 79.58 | 75.13 | 59.71 | b | 53.32 | 38.97 | 24.46 | g | 54.15 | b | |||||
1927 | 25.77 | e | 29.11 | i | 36.88 | f | 45.79 | k | 52.04 | c | 69.70 | 80.48 | 74.10 | a | 64.43 | 54.20 | a | 36.60 | 21.50 | c | 53.20 | c | ||||
1928 | 28.25 | g | 31.24 | l | 41.32 | 41.35 | d | 65.16 | 62.62 | a | 78.69 | b | 76.23 | 70.86 | b | 53.18 | c | 37.69 | a | 25.90 | 55.30 | b | ||||
1929 | 21.90 | k | 23.60 | c | 37.26 | d | 43.04 | c | 56.44 | d | 68.57 | 80.71 | 81.55 | 58.96 | g | 49.62 | b | 27.83 | 25.68 | 49.43 | b | |||||
1930 | 10.52 | 28.18 | f | 31.88 | f | 49.62 | d | ----- | z | 64.27 | 80.06 | 75.81 | 66.10 | 49.10 | 38.10 | 25.88 | e | 51.05 | c | |||||||
1931 | 29.36 | c | 35.24 | c | 33.71 | j | 49.53 | 60.56 | o | ----- | z | 83.00 | b | 79.90 | 67.50 | n | 54.17 | b | 34.73 | 25.10 | 48.88 | d | ||||
1932 | 19.26 | 30.17 | 35.40 | a | 49.97 | 60.16 | 67.67 | c | 77.08 | e | 76.77 | 69.10 | 48.27 | a | 37.63 | 18.74 | 49.18 | |||||||||
1933 | 23.61 | 17.75 | 37.16 | 45.23 | 53.55 | 75.68 | b | 86.24 | b | 77.19 | 67.50 | 60.03 | b | 39.89 | b | 32.13 | 51.33 | |||||||||
1934 | 29.77 | 41.61 | 46.06 | 60.83 | 72.52 | 69.53 | 84.13 | 82.23 | 63.87 | 58.65 | 42.79 | a | 28.55 | 56.71 | ||||||||||||
1935 | 29.87 | 36.68 | 35.68 | 47.23 | 56.10 | 71.43 | 85.68 | 81.71 | 73.63 | 56.42 | 32.57 | 30.10 | 53.09 | |||||||||||||
1936 | 28.26 | 30.93 | 39.30 | h | 54.27 | 68.32 | 75.27 | 86.55 | 79.29 | 69.03 | a | 55.77 | 37.68 | b | 26.11 | c | 55.59 | a | ||||||||
1937 | 11.46 | g | 27.62 | g | 42.08 | f | 46.85 | j | 66.24 | b | 68.93 | a | 79.81 | 80.30 | a | 72.72 | a | 59.07 | c | 39.31 | d | 26.63 | d | 61.63 | d | |
1938 | 27.08 | g | 34.73 | f | 39.24 | f | 50.10 | a | 56.26 | 72.63 | 76.87 | 79.16 | 75.97 | 53.23 | 28.13 | 26.00 | 57.59 | c | ||||||||
1939 | 25.55 | 23.11 | 41.52 | 53.37 | 66.29 | 67.13 | 83.42 | 82.61 | 70.97 | 53.73 | a | 48.80 | 35.55 | 54.34 | ||||||||||||
1940 | 26.06 | 32.03 | 42.16 | 50.79 | a | 67.71 | 76.17 | 81.97 | 84.61 | 69.33 | 57.26 | 31.70 | 29.13 | 54.08 | ||||||||||||
1941 | 29.32 | 37.75 | 43.68 | 50.03 | 64.15 | e | 70.40 | 79.35 | 75.23 | 59.31 | a | 51.43 | a | 38.13 | 29.23 | 52.34 | ||||||||||
1942 | 24.61 | 29.25 | 41.39 | 52.13 | 54.42 | 67.37 | 84.42 | 82.23 | 67.93 | 52.52 | 32.50 | 27.58 | 51.36 | |||||||||||||
1943 | 22.55 | 32.50 | 37.42 | 53.67 | 56.35 | 65.86 | a | 81.16 | 79.32 | 71.93 | 54.84 | 40.79 | f | 28.61 | 53.11 | a | ||||||||||
1944 | 25.26 | 31.21 | 36.35 | 49.27 | 60.23 | 63.17 | 76.90 | 78.00 | 64.97 | 59.94 | 32.60 | 26.87 | 50.40 | |||||||||||||
1945 | 29.42 | 33.46 | 38.39 | 44.00 | 58.06 | 62.03 | 79.77 | 74.90 | 59.73 | 56.29 | 33.00 | 24.42 | 49.46 | |||||||||||||
1946 | 25.48 | 31.68 | 43.90 | 54.97 | 56.65 | 71.03 | 82.19 | 79.77 | 66.93 | 41.71 | 36.14 | b | 29.26 | 51.64 | ||||||||||||
1947 | 23.35 | 34.00 | a | 43.71 | c | 46.83 | l | ----- | z | 62.72 | l | 82.32 | 77.23 | a | 66.60 | 54.55 | 30.23 | 26.58 | 48.73 | c | ||||||
1948 | 26.52 | 28.38 | ----- | z | 46.86 | i | 60.60 | a | 68.97 | a | 77.66 | b | 76.13 | 66.93 | 54.77 | 27.73 | 20.00 | 50.77 | b | |||||||
1949 | 12.13 | 25.61 | 38.03 | a | 53.13 | 60.65 | 67.67 | 79.45 | 78.55 | 66.72 | a | 43.77 | 42.11 | b | 22.88 | f | 51.62 | a | ||||||||
1950 | 17.90 | b | 31.18 | 33.74 | 44.27 | 54.10 | 67.87 | 74.32 | 75.71 | 64.67 | 54.65 | 34.87 | 30.97 | 48.69 | ||||||||||||
1951 | 20.84 | 32.04 | 34.03 | 48.57 | 60.33 | a | 60.87 | 77.58 | 71.16 | 65.69 | a | 46.13 | 33.03 | a | 21.35 | 47.64 | ||||||||||
1952 | 22.06 | 29.10 | 33.71 | 53.60 | 59.32 | 68.76 | a | 75.97 | 77.39 | 74.30 | 62.68 | 33.03 | a | 27.39 | c | 51.44 | ||||||||||
1953 | 30.94 | 29.71 | 41.00 | b | 43.93 | 52.45 | 66.80 | 83.81 | 79.60 | a | 72.07 | a | 59.17 | a | 40.93 | 24.94 | 52.11 | |||||||||
1954 | 27.00 | 36.07 | 36.79 | c | 48.10 | 61.42 | 62.20 | 80.65 | 75.23 | 68.47 | 53.97 | 43.17 | 24.63 | a | 51.47 | |||||||||||
1955 | 21.68 | 25.64 | 30.35 | 42.77 | 57.16 | 66.30 | 79.10 | 80.39 | 65.50 | 53.45 | b | 28.00 | 27.00 | b | 48.11 | |||||||||||
1956 | 27.81 | 24.48 | 37.52 | 50.30 | 62.35 | 73.10 | 79.84 | 75.35 | 70.23 | 52.00 | 33.41 | a | 27.13 | 51.13 | ||||||||||||
1957 | 19.23 | 35.36 | 39.23 | 46.03 | 59.81 | 67.24 | a | 80.42 | 78.45 | 68.20 | 51.52 | 32.83 | 29.23 | 50.63 | ||||||||||||
1958 | 28.74 | 37.89 | 38.81 | 45.03 | 69.90 | 70.17 | 75.55 | 79.84 | 65.20 | 59.29 | 33.97 | 31.52 | 52.99 | |||||||||||||
1959 | 26.58 | 30.79 | 37.87 | 48.57 | 52.94 | 73.40 | 80.48 | 77.71 | 62.50 | 50.58 | 34.50 | 29.00 | 50.41 | |||||||||||||
1960 | 24.26 | 26.62 | 40.65 | 49.47 | 57.52 | 71.60 | 84.81 | 74.58 | 70.43 | 51.48 | 33.80 | 26.84 | 51.00 | |||||||||||||
1961 | 28.74 | 33.25 | 39.77 | 44.73 | 59.84 | 77.40 | 82.65 | 79.52 | 55.30 | 49.29 | 34.13 | 22.23 | 50.57 | |||||||||||||
1962 | 20.06 | 30.18 | 36.13 | 51.47 | 57.71 | 69.33 | 75.55 | 73.74 | 68.37 | 58.74 | 39.57 | 28.47 | a | 50.78 | ||||||||||||
1963 | 17.10 | 39.21 | 39.90 | 44.47 | 59.26 | 64.57 | 79.03 | 80.16 | 70.07 | 58.77 | 34.93 | 24.81 | 51.02 | |||||||||||||
1964 | 22.40 | a | 26.76 | 32.35 | 45.20 | 58.33 | a | 63.00 | 82.52 | 73.35 | 65.20 | 57.90 | a | 35.03 | 23.81 | 48.82 | ||||||||||
1965 | 26.23 | 29.93 | 35.26 | 48.53 | 54.74 | 66.13 | 77.32 | 73.81 | 54.30 | 60.19 | 40.53 | 27.32 | 49.52 | |||||||||||||
1966 | 25.10 | 29.07 | 40.42 | 45.43 | 65.13 | 68.47 | 84.58 | 76.42 | 69.60 | 49.29 | 35.70 | 24.35 | 51.13 | |||||||||||||
1967 | 25.65 | 29.36 | 33.87 | 40.70 | 56.77 | 65.40 | 79.19 | 81.35 | 69.67 | 49.97 | 35.76 | a | 19.65 | 48.94 | ||||||||||||
1968 | 23.26 | 33.83 | 41.87 | 43.07 | 55.32 | 65.20 | 81.65 | 68.94 | 61.60 | 49.77 | 31.40 | 22.74 | 48.22 | |||||||||||||
1969 | 25.10 | 29.32 | 35.90 | 49.57 | 66.45 | 65.67 | 79.26 | 82.53 | a | 69.73 | 44.13 | 36.20 | 27.29 | 50.93 | ||||||||||||
1970 | 25.13 | 35.86 | 34.90 | 39.63 | 57.16 | 70.80 | 79.23 | 82.48 | 57.97 | 46.61 | 34.17 | 22.58 | 48.88 | |||||||||||||
1971 | 22.97 | 28.50 | 32.19 | 44.73 | 58.39 | 67.60 | 78.19 | 82.97 | 57.93 | 47.13 | 32.83 | 20.45 | 47.82 | |||||||||||||
1972 | 20.58 | 29.00 | 40.19 | 44.37 | 60.55 | 69.13 | 75.48 | 76.71 | 57.73 | 49.77 | 32.80 | 17.77 | 47.84 | |||||||||||||
1973 | 21.74 | 33.32 | 36.84 | 42.30 | c | 60.03 | 66.83 | 77.94 | 76.10 | 60.80 | 52.03 | 31.40 | 25.42 | 48.73 | ||||||||||||
1974 | 20.90 | 25.33 | s | 34.71 | c | 46.27 | 54.23 | 74.77 | 81.10 | 73.81 | 68.93 | 54.97 | 34.63 | 22.29 | 51.51 | a | ||||||||||
1975 | 20.58 | 26.39 | 32.61 | 37.63 | 51.06 | 63.93 | 79.94 | 71.13 | 69.33 | 49.13 | 30.33 | 25.65 | 46.48 | |||||||||||||
1976 | 24.84 | 29.48 | 32.94 | 45.07 | 61.10 | 68.00 | 80.52 | 72.55 | 66.20 | 50.93 | a | 29.77 | q | 24.58 | 50.56 | a | ||||||||||
1977 | 21.03 | 34.96 | 32.89 | d | 55.03 | a | 54.16 | 75.00 | 77.00 | 72.61 | 62.63 | 53.10 | b | 32.17 | 25.87 | 49.71 | ||||||||||
1978 | 26.48 | 31.44 | a | 43.06 | 45.50 | 54.42 | 70.03 | a | 76.68 | 74.32 | 62.87 | 55.87 | a | 29.53 | k | 14.89 | m | 54.07 | b | |||||||
1979 | 16.00 | k | 27.00 | g | ----- | z | 52.83 | x | 59.23 | a | 71.10 | 80.84 | 74.65 | 73.03 | 54.13 | 30.55 | a | 29.52 | 59.13 | d | ||||||
1980 | 22.26 | ----- | z | 36.07 | p | 40.33 | x | 57.19 | 66.00 | 76.10 | 69.65 | 63.40 | 52.29 | 36.97 | 31.00 | 52.76 | c | |||||||||
1981 | 31.32 | 31.57 | 43.10 | a | 48.00 | 55.68 | 65.67 | 78.10 | 82.26 | 70.13 | 47.45 | 39.90 | 25.71 | 51.57 | ||||||||||||
1982 | 20.97 | 26.70 | a | 36.29 | 40.73 | 55.63 | a | 67.23 | 74.03 | 80.03 | 63.17 | a | 46.03 | 29.30 | 22.74 | 46.91 | ||||||||||
1983 | 27.19 | 31.93 | 36.68 | 41.83 | 55.42 | 64.77 | 73.06 | 78.33 | a | 64.72 | a | 51.71 | 32.30 | 16.50 | c | 47.87 | ||||||||||
1984 | 21.42 | 27.86 | 35.43 | a | 42.37 | 54.96 | c | 64.70 | 78.23 | 75.81 | 62.07 | b | 45.20 | a | 33.72 | a | 21.58 | 46.95 | ||||||||
1985 | 22.84 | 24.21 | 35.80 | a | 49.80 | 60.81 | 69.27 | 78.65 | 72.13 | a | 56.14 | b | 49.00 | a | 19.83 | l | 24.58 | 49.38 | a | |||||||
1986 | 31.45 | 32.79 | 44.50 | a | 45.76 | a | 57.84 | 73.37 | 71.19 | 78.73 | a | ----- | z | 53.13 | 33.57 | b | 26.68 | 49.91 | a | |||||||
1987 | 24.71 | 35.68 | 39.35 | 56.13 | 61.32 | 69.39 | g | 71.97 | a | 70.68 | c | 70.47 | 58.45 | 36.03 | 24.42 | 49.93 | a | |||||||||
1988 | 21.84 | 32.55 | 36.57 | a | 49.35 | d | 61.87 | 77.30 | 83.03 | 79.77 | 65.68 | b | 61.39 | 30.86 | a | 21.35 | 51.80 | |||||||||
1989 | 22.93 | a | 24.32 | 37.74 | 44.43 | i | 56.87 | 70.12 | d | 82.61 | 73.53 | a | 67.60 | 53.39 | h | 34.57 | g | 24.57 | c | 51.14 | c | |||||
1990 | 26.40 | a | 27.96 | a | 41.17 | a | 51.67 | 55.73 | a | 68.00 | 78.32 | 78.06 | 74.40 | 47.47 | a | 33.89 | c | 15.19 | e | 49.86 | ||||||
1991 | 23.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 81.00 | 67.07 | 51.24 | f | 28.96 | b | 21.71 | 44.35 | g | |||
1992 | 25.81 | 35.55 | 46.77 | 54.72 | a | 68.35 | 71.47 | 72.97 | 74.95 | l | 63.87 | 54.84 | 28.07 | 20.56 | d | 49.36 | a | |||||||||
1993 | 17.89 | l | 24.71 | n | 39.42 | 44.23 | 64.23 | 64.71 | b | 67.23 | 72.45 | 66.87 | 51.40 | a | 30.00 | a | 25.73 | i | 55.62 | c | ||||||
1994 | 27.20 | a | 27.37 | a | 42.40 | a | 51.43 | 65.03 | 74.13 | o | 80.19 | 83.27 | a | 73.50 | 47.35 | 25.62 | a | 24.67 | a | 49.82 | a | |||||
1995 | 22.68 | 32.54 | 36.27 | a | 45.10 | 56.10 | 66.28 | a | 75.19 | 77.00 | h | ----- | z | 46.81 | 36.83 | 25.00 | b | 44.28 | b | |||||||
1996 | 21.63 | d | 26.86 | a | 37.31 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.60 | i |
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 | 82.00 | v | 80.80 | u | 65.58 | r | 49.43 | x | 27.55 | s | ----- | z | ----- | z |
2001 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.86 | w | 20.08 | s | ----- | z |
2002 | 21.38 | o | 29.24 | k | 31.95 | l | 43.85 | q | 59.71 | g | 68.43 | i | 83.88 | g | 74.05 | k | 66.68 | e | 49.35 | e | 32.54 | q | 26.56 | o | 58.01 | j |
2003 | 31.89 | m | 27.46 | d | 38.52 | f | 47.04 | e | 51.30 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.25 | j |
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 |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 24.18 | 30.79 | 38.09 | 47.62 | 59.29 | 68.59 | 79.22 | 77.22 | 66.38 | 52.55 | 34.57 | 25.30 | 50.30 | |||||||||||||
S.D. | 4.02 | 4.34 | 3.73 | 4.60 | 4.66 | 3.85 | 3.64 | 3.67 | 4.80 | 4.67 | 4.27 | 3.89 | 2.13 | |||||||||||||
SKEW | -0.76 | -0.16 | 0.24 | 0.33 | 0.68 | 0.35 | -0.49 | -0.12 | -0.45 | 0.03 | 0.55 | -0.21 | 0.54 | |||||||||||||
MAX | 31.45 | 41.61 | 46.77 | 60.83 | 72.52 | 77.40 | 86.55 | 84.61 | 75.97 | 62.68 | 48.80 | 35.55 | 56.71 | |||||||||||||
MIN | 10.52 | 17.75 | 30.35 | 37.63 | 51.06 | 60.87 | 67.23 | 68.94 | 54.30 | 41.71 | 25.62 | 15.19 | 46.48 | |||||||||||||
YRS | 67 | 64 | 62 | 63 | 67 | 66 | 71 | 70 | 69 | 71 | 67 | 68 | 44 |