YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.88 | w | 57.52 | 47.93 | 37.00 | 25.36 | b | 14.97 | 36.55 | g | ||||
1927 | 17.84 | 28.93 | 30.35 | 35.03 | 41.45 | 51.03 | 59.42 | 55.68 | 50.37 | 34.29 | 28.77 | 17.74 | 37.58 | |||||||||||||
1928 | 17.39 | 23.86 | 31.74 | 32.57 | 45.84 | 48.03 | 56.16 | 56.32 | 46.23 | 36.61 | 28.17 | a | 15.58 | 36.54 | ||||||||||||
1929 | 14.87 | 15.75 | 24.37 | a | 29.52 | i | 40.19 | 46.97 | 60.87 | 58.65 | ----- | z | 35.00 | 16.57 | 10.84 | 32.41 | b | |||||||||
1930 | 11.19 | 16.61 | 22.84 | 36.47 | 39.06 | 47.69 | a | 58.06 | 55.71 | 44.97 | 29.90 | 18.93 | 7.68 | 32.43 | ||||||||||||
1931 | 7.94 | 25.46 | 23.52 | 35.77 | 38.94 | 51.03 | 59.06 | 55.03 | 50.13 | 36.48 | 22.60 | 10.42 | 34.70 | |||||||||||||
1932 | 10.48 | 20.83 | 24.16 | 29.70 | 41.87 | 44.20 | 58.81 | 56.35 | 42.60 | 30.13 | 31.24 | a | 7.00 | g | 35.49 | a | ||||||||||
1933 | 5.58 | 11.42 | b | 30.13 | 31.53 | 38.29 | 54.37 | 60.61 | 58.58 | 53.10 | 40.06 | 24.87 | 22.16 | 35.89 | ||||||||||||
1934 | 17.27 | a | ----- | z | 34.35 | 35.97 | 47.35 | 48.40 | 60.44 | f | 60.77 | 47.17 | 37.13 | 27.31 | a | 15.65 | 37.14 | b | ||||||||
1935 | 9.97 | 15.46 | 24.58 | 34.48 | a | 42.87 | 49.87 | 61.29 | 61.39 | ----- | z | 40.77 | ----- | z | 17.32 | 35.80 | b | |||||||||
1936 | 15.39 | 24.18 | a | 27.00 | 33.50 | t | 42.94 | 46.57 | w | 53.53 | p | 51.52 | 43.77 | 31.32 | 22.07 | 16.00 | 30.46 | c | ||||||||
1937 | -1.68 | 19.64 | 29.68 | 43.52 | a | 44.39 | 47.87 | 58.74 | 57.94 | 46.53 | 37.61 | 23.30 | 21.42 | 35.75 | ||||||||||||
1938 | 22.19 | 25.86 | 35.68 | 45.20 | 53.87 | a | ----- | z | 58.69 | o | ----- | z | 53.37 | k | 29.91 | t | 21.42 | r | 20.00 | a | 33.80 | f | ||||
1939 | 19.06 | 15.11 | 28.20 | a | 34.87 | ----- | z | 46.03 | 59.78 | h | 57.73 | a | 55.31 | a | 36.00 | 26.55 | a | 17.72 | b | 33.66 | b | |||||
1940 | 20.32 | 25.93 | 29.26 | 37.70 | 46.77 | 55.69 | a | 61.32 | 58.62 | b | 54.62 | a | 40.23 | 24.77 | 23.53 | a | 39.90 | |||||||||
1941 | 24.34 | b | 28.64 | 31.08 | e | 36.32 | e | 46.80 | f | 50.85 | d | 58.12 | e | 58.21 | g | 48.87 | g | 39.85 | e | 27.30 | 22.27 | a | 35.42 | c | ||
1942 | 15.69 | b | 18.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 16.84 | j | |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 54.14 | w | 58.29 | 58.10 | 50.20 | 42.90 | 28.57 | 21.00 | 43.18 | f | ||||||
1945 | 21.97 | 26.04 | 26.39 | 29.76 | a | 43.68 | 48.43 | 64.45 | 64.27 | a | 48.63 | 39.90 | 22.27 | 12.45 | 37.35 | |||||||||||
1946 | 15.16 | 18.61 | 30.48 | 41.33 | 45.55 | 53.28 | a | 62.13 | 61.19 | 49.73 | 35.71 | 27.07 | 22.10 | 38.53 | ||||||||||||
1947 | 13.52 | 23.04 | 26.90 | 36.07 | 48.00 | 56.43 | 63.07 | a | 62.58 | 53.10 | 40.06 | 24.77 | 19.42 | 38.91 | ||||||||||||
1948 | 15.55 | 21.71 | a | 25.42 | 36.93 | 42.87 | 51.27 | 57.23 | a | 56.35 | 48.30 | 37.52 | 22.77 | 20.29 | 36.35 | |||||||||||
1949 | 17.52 | 18.82 | 28.26 | 37.50 | 42.93 | a | 51.83 | 59.39 | 53.48 | 48.83 | 32.84 | 23.30 | 14.26 | 35.75 | ||||||||||||
1950 | 15.65 | 22.82 | 25.71 | 35.23 | 42.90 | a | 53.97 | a | 61.23 | 55.06 | 48.17 | 40.06 | 24.67 | 18.48 | 37.00 | |||||||||||
1951 | 16.70 | a | 20.89 | 26.26 | 35.40 | 45.27 | a | 49.53 | 62.19 | 58.90 | 44.83 | 27.23 | 22.90 | 13.84 | 35.33 | |||||||||||
1952 | 21.03 | 21.69 | 24.07 | c | 34.97 | 44.52 | 57.53 | 58.97 | 59.55 | 45.00 | 30.81 | 19.70 | 15.39 | 36.10 | ||||||||||||
1953 | 18.32 | ----- | z | 35.85 | r | 39.48 | a | 42.97 | 50.83 | ----- | z | 55.30 | d | 45.07 | 35.84 | 25.43 | 11.48 | b | 36.08 | c | ||||||
1954 | 13.83 | a | 17.85 | a | 22.20 | a | 36.56 | e | 45.47 | a | 50.35 | d | 63.33 | a | 58.00 | 53.43 | 42.62 | g | 27.86 | a | 18.97 | 37.08 | a | |||
1955 | 16.87 | 15.68 | 27.42 | 31.50 | 42.61 | 49.25 | b | 56.69 | b | 59.10 | 47.27 | 32.57 | a | 22.21 | a | 18.14 | b | 34.94 | ||||||||
1956 | 19.24 | b | 16.52 | 25.61 | 35.67 | c | 44.96 | c | 56.57 | b | 58.70 | a | 54.73 | a | 46.50 | 36.66 | b | 17.21 | a | 11.81 | 35.35 | |||||
1957 | 24.32 | 29.04 | b | 31.45 | 37.03 | 45.71 | 52.73 | o | 59.65 | 59.77 | 45.21 | b | 41.13 | a | 25.32 | e | 17.34 | b | 37.82 | a | ||||||
1958 | 15.00 | b | 25.32 | 26.76 | b | 33.41 | a | 45.10 | 54.23 | 55.10 | a | 57.28 | b | 48.38 | a | 34.52 | b | 19.88 | d | 17.13 | 36.01 | |||||
1959 | 17.23 | a | 21.93 | 26.26 | 38.42 | d | 46.52 | 59.00 | 62.45 | 61.42 | 50.53 | 39.16 | 25.67 | 21.55 | 39.18 | |||||||||||
1960 | 15.80 | a | 20.93 | b | 30.80 | a | 36.86 | a | 43.43 | c | 54.52 | a | 62.13 | a | 58.94 | 52.75 | b | 38.27 | a | 25.77 | d | 14.63 | l | 40.02 | a | |
1961 | 5.13 | h | 26.08 | b | 29.37 | a | 35.65 | d | 47.00 | b | 57.28 | a | 60.04 | c | 61.06 | 45.93 | a | 37.03 | b | 26.88 | f | 1.52 | b | 40.10 | b | |
1962 | 4.19 | 23.19 | b | 25.55 | 38.14 | b | 41.85 | d | 52.09 | h | 66.55 | k | ----- | z | ----- | z | ----- | z | 34.71 | p | 18.76 | j | 26.59 | g | ||
1963 | 10.95 | k | 24.73 | f | 28.68 | l | 35.63 | c | ----- | z | ----- | z | 65.00 | x | 60.68 | l | 54.90 | 44.45 | 30.37 | 13.77 | 35.82 | g | ||||
1964 | 14.00 | 16.79 | 24.39 | 33.33 | 46.65 | 52.38 | a | 61.26 | 56.06 | 48.77 | 37.48 | 26.60 | 20.97 | 36.56 | ||||||||||||
1965 | 23.81 | 21.46 | 27.32 | 36.00 | a | 43.29 | 49.83 | 59.84 | 55.61 | 48.10 | 36.77 | 33.90 | 25.61 | 38.46 | ||||||||||||
1966 | 16.74 | 19.82 | 27.77 | 35.30 | 47.00 | 53.23 | 61.58 | 57.06 | 46.68 | h | 38.23 | 29.57 | 19.16 | 36.86 | a | |||||||||||
1967 | 14.16 | 21.25 | 31.19 | 34.59 | a | 41.50 | c | 50.13 | 60.13 | 58.10 | a | 51.83 | 34.97 | 25.87 | 13.07 | a | 36.40 | |||||||||
1968 | 7.03 | 27.10 | 27.39 | 31.90 | ----- | z | ----- | z | 56.38 | b | 50.48 | 39.63 | 35.97 | 21.53 | 8.58 | 30.60 | b | |||||||||
1969 | 20.10 | a | 21.46 | 25.67 | a | 35.37 | 41.84 | 47.23 | 60.10 | 64.03 | a | 47.10 | 36.19 | 24.17 | 21.39 | 37.05 | ||||||||||
1970 | 15.55 | 24.43 | 25.77 | ----- | z | ----- | z | ----- | z | ----- | z | 57.25 | s | ----- | z | ----- | z | ----- | z | ----- | z | 21.92 | i | |||
1971 | 13.63 | d | 18.29 | 23.19 | 32.30 | 40.90 | b | 51.07 | 57.56 | d | 57.30 | a | 43.43 | 35.06 | 24.00 | 18.70 | a | 34.62 | ||||||||
1972 | 13.61 | 18.66 | 27.00 | 34.97 | a | 40.50 | a | 52.31 | a | 57.58 | 55.55 | 48.73 | 42.55 | 27.37 | 14.06 | 36.07 | ||||||||||
1973 | 8.53 | a | 23.68 | 30.58 | 31.80 | 39.23 | a | 48.00 | ----- | z | ----- | z | 43.03 | 33.43 | a | 26.57 | 19.90 | 30.48 | b | |||||||
1974 | 15.55 | b | 13.14 | 32.10 | 29.83 | 43.94 | 52.53 | 56.37 | a | 52.00 | 45.23 | 38.10 | 26.50 | 16.77 | 35.17 | |||||||||||
1975 | 12.68 | 21.21 | 28.23 | e | 31.93 | 34.93 | a | 43.47 | 55.32 | 51.00 | 44.67 | 31.19 | 18.70 | 16.77 | 32.51 | |||||||||||
1976 | 12.65 | 20.86 | 19.81 | 31.97 | 41.13 | 45.97 | 52.40 | a | 47.84 | 43.63 | 22.61 | 15.25 | f | 6.57 | a | 31.40 | a | |||||||||
1977 | 8.00 | 13.11 | 17.29 | 29.79 | a | ----- | z | 52.12 | n | ----- | z | 57.47 | a | 50.86 | a | 36.06 | 26.56 | e | ----- | z | 29.89 | d | ||||
1978 | 25.61 | 25.14 | 37.14 | q | ----- | z | ----- | z | 50.77 | 55.47 | a | 53.13 | 47.00 | ----- | z | ----- | z | 14.10 | 38.74 | e | ||||||
1979 | 16.16 | 20.00 | a | 28.73 | a | 34.70 | ----- | z | ----- | z | 53.45 | 48.12 | n | 34.20 | 23.84 | 13.33 | ----- | z | 28.05 | d | ||||||
1980 | 19.23 | 17.11 | b | 19.33 | a | 23.67 | ----- | z | 38.47 | 43.97 | 46.06 | ----- | z | 32.73 | a | 23.53 | 18.71 | 28.28 | b | |||||||
1981 | 16.03 | 17.07 | 27.42 | 34.93 | a | 39.10 | a | 51.57 | 59.48 | 54.00 | 48.23 | 37.68 | 24.46 | b | 18.97 | 35.75 | ||||||||||
1982 | 17.10 | a | 21.07 | 28.00 | a | 32.30 | 44.65 | 46.63 | ----- | z | 59.90 | 52.40 | 31.97 | 26.60 | 21.42 | 34.73 | a | |||||||||
1983 | 18.13 | 26.18 | 30.14 | b | 28.77 | 39.77 | 49.60 | 59.13 | 60.65 | 48.54 | b | 37.16 | 28.37 | 23.87 | 37.52 | |||||||||||
1984 | 16.19 | 16.76 | 25.35 | 29.61 | b | 45.87 | 51.55 | a | 59.06 | 58.58 | 49.63 | 35.26 | 24.28 | a | 22.23 | 36.20 | ||||||||||
1985 | 19.87 | 17.25 | 31.10 | 29.33 | 43.39 | 47.80 | 56.73 | a | 51.71 | 44.43 | 35.94 | 26.52 | a | 17.23 | 35.11 | |||||||||||
1986 | 18.57 | a | 26.04 | a | 30.19 | 37.30 | 41.77 | 52.62 | a | 56.65 | 56.61 | 47.75 | b | 33.23 | 28.03 | 18.84 | 37.30 | |||||||||
1987 | 15.20 | a | 23.75 | 23.35 | 31.43 | 39.19 | 46.97 | 48.45 | b | 55.40 | a | 39.83 | a | 32.19 | 25.40 | 17.35 | 33.21 | |||||||||
1988 | 14.03 | 22.93 | 22.06 | 36.22 | g | 45.83 | g | 57.66 | a | 62.57 | a | 61.70 | a | 49.03 | 40.45 | 28.76 | a | 18.07 | a | 37.73 | b | |||||
1989 | 13.55 | 21.95 | g | 32.03 | a | 40.14 | a | 46.77 | 53.37 | 62.23 | 57.80 | a | 48.78 | c | 35.87 | a | 23.39 | b | 13.74 | 38.88 | a | |||||
1990 | 12.93 | a | 23.85 | a | 31.58 | 40.03 | a | 45.19 | d | 56.13 | 61.00 | h | 57.86 | c | 53.97 | a | 36.97 | 27.44 | e | 10.11 | d | 36.01 | a | |||
1991 | 14.83 | g | 24.00 | e | 29.85 | d | 35.00 | d | 43.95 | l | ----- | z | 60.12 | e | 58.29 | 49.79 | a | 36.10 | b | 26.39 | b | 18.17 | b | 37.52 | c | |
1992 | ----- | z | 24.71 | a | 31.29 | j | 38.52 | e | 46.07 | d | 51.00 | a | 57.77 | e | 56.36 | c | 47.07 | c | 37.57 | q | 18.72 | l | 13.00 | 41.81 | d | |
1993 | 24.82 | c | 25.67 | g | 24.46 | r | 36.57 | i | 44.32 | f | 51.07 | 57.84 | 58.93 | c | 49.20 | 41.05 | j | 24.30 | g | 17.29 | g | 48.37 | g | |||
1994 | 16.77 | i | 24.00 | f | 30.84 | f | 38.31 | a | 46.43 | c | 56.93 | 62.81 | j | 62.71 | 49.00 | p | 38.08 | g | 24.78 | g | 22.33 | d | 45.34 | g | ||
1995 | 25.96 | d | 26.92 | b | 31.41 | d | 34.07 | a | 43.69 | e | 49.92 | f | 57.00 | g | 61.42 | g | 54.90 | i | 33.94 | m | 26.84 | k | 21.47 | l | 32.41 | g |
1996 | 18.17 | h | 27.06 | k | 27.35 | n | 35.18 | h | 47.19 | e | 54.96 | c | 63.08 | f | 60.41 | b | 46.73 | o | 37.90 | k | 27.10 | i | 22.37 | d | 46.23 | h |
1997 | 20.42 | l | 23.65 | h | 29.38 | r | 32.93 | b | 47.65 | e | 53.85 | d | 58.81 | 58.56 | d | 53.96 | c | 34.58 | e | 27.12 | f | 17.23 | 44.69 | d | ||
1998 | 22.42 | 23.79 | 26.48 | b | 33.41 | a | 43.00 | b | 49.46 | b | 63.85 | d | 60.00 | b | 52.76 | a | ----- | z | 26.52 | i | ----- | z | 41.69 | c | ||
1999 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.27 | h | 61.77 | e | 58.87 | 46.12 | f | ----- | z | ----- | z | ----- | z | 60.32 | j | |
2000 | 17.24 | n | 27.00 | h | 28.50 | k | 36.94 | l | 44.86 | j | ----- | z | ----- | z | 61.38 | j | 49.44 | e | 37.42 | g | 20.78 | c | 18.47 | a | 29.56 | i |
2001 | 18.53 | l | 23.64 | q | ----- | z | 41.50 | v | 46.87 | 53.13 | 63.96 | f | 58.83 | b | 50.57 | g | 38.61 | m | 26.10 | t | 12.00 | p | 52.94 | i | ||
2002 | 18.00 | s | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2003 | ----- | z | ----- | z | 34.75 | w | 39.67 | l | 46.37 | l | 57.54 | d | ----- | z | 64.69 | b | 51.15 | d | 43.19 | e | 30.96 | e | 21.75 | g | 49.51 | g |
2004 | ----- | z | 21.08 | p | 33.45 | k | 41.20 | j | 48.46 | g | 54.67 | i | 59.65 | n | 58.21 | l | 52.95 | h | 42.33 | d | 30.17 | l | 18.88 | n | 42.33 | k |
2005 | ----- | z | 31.37 | a | 30.75 | g | 36.56 | c | 46.60 | f | 52.46 | f | 63.88 | f | 60.33 | d | 52.00 | 41.95 | i | 30.43 | g | 14.24 | n | 45.06 | h | |
2006 | 17.08 | r | 21.45 | h | 29.84 | l | 40.63 | k | 50.03 | b | 59.57 | g | 66.93 | d | 62.56 | f | 49.00 | g | 41.19 | d | 29.44 | l | 17.71 | q | 52.72 | i |
2007 | 15.82 | n | 26.32 | i | 32.05 | k | 37.78 | l | 48.95 | i | 57.94 | n | 63.89 | m | 63.71 | n | 51.69 | q | 39.38 | j | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 15.90 | 21.51 | 27.39 | 34.84 | 43.77 | 51.23 | 58.95 | 57.47 | 48.15 | 36.16 | 24.97 | 16.98 | 36.23 | |||||||||||||
S.D. | 5.25 | 4.33 | 3.61 | 3.64 | 3.24 | 3.95 | 3.70 | 3.61 | 3.97 | 4.26 | 3.74 | 4.61 | 1.73 | |||||||||||||
SKEW | -0.59 | -0.12 | -0.34 | -0.00 | 0.08 | -0.38 | -1.40 | -0.69 | -0.67 | -0.78 | -0.60 | -0.83 | -0.13 | |||||||||||||
MAX | 25.96 | 31.37 | 35.68 | 45.20 | 53.87 | 59.00 | 66.93 | 64.69 | 55.31 | 44.45 | 33.90 | 25.61 | 39.90 | |||||||||||||
MIN | -1.68 | 11.42 | 17.29 | 23.67 | 34.93 | 38.47 | 43.97 | 46.06 | 34.20 | 22.61 | 13.33 | 1.52 | 32.43 | |||||||||||||
YRS | 63 | 63 | 61 | 63 | 59 | 60 | 57 | 67 | 63 | 63 | 59 | 63 | 33 |