YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 25.06 | 33.57 | 40.19 | 44.63 | 53.71 | 51.55 | 42.93 | 32.94 | 22.60 | 14.74 | 36.19 | b | ||||||||||
1952 | 16.13 | 16.55 | 23.10 | a | 35.37 | 40.23 | 45.03 | 51.84 | 51.71 | 45.33 | 30.39 | 19.87 | 16.77 | 32.69 | ||||||||||||
1953 | 20.81 | 14.57 | 22.13 | 25.37 | 31.97 | 44.30 | 55.06 | 50.35 | 40.57 | 34.16 | 26.80 | 12.94 | 31.59 | |||||||||||||
1954 | 20.10 | 23.14 | 23.00 | 32.03 | 39.68 | 44.90 | 54.84 | 49.16 | 46.77 | 35.48 | 26.80 | 19.03 | 34.58 | |||||||||||||
1955 | 11.32 | 11.57 | 22.58 | 26.63 | 37.19 | 45.53 | 53.03 | 56.55 | 44.47 | 37.45 | 26.60 | 24.00 | 33.08 | |||||||||||||
1956 | 24.52 | 16.79 | 22.48 | 31.97 | 40.58 | 48.23 | 52.48 | 49.03 | 43.77 | 32.35 | 16.50 | 15.32 | 32.84 | |||||||||||||
1957 | 21.03 | 27.75 | 29.35 | 30.67 | 38.42 | 48.07 | 53.94 | 51.23 | 42.43 | 35.68 | 22.07 | 19.84 | 35.04 | |||||||||||||
1958 | 17.48 | 26.25 | 25.58 | 29.43 | 42.06 | 45.93 | 49.61 | 54.48 | 48.13 | 37.84 | 20.83 | 17.71 | 34.61 | |||||||||||||
1959 | 15.61 | 19.68 | 21.35 | 33.17 | 37.71 | 48.63 | 54.77 | 52.16 | 42.03 | 31.52 | 23.73 | 22.58 | 33.58 | |||||||||||||
1960 | 13.68 | 17.76 | 27.58 | 31.00 | 38.06 | 46.33 | 48.87 | 47.35 | 45.07 | 27.84 | 18.77 | 9.48 | 30.98 | |||||||||||||
1961 | 7.03 | 14.11 | 15.42 | 26.57 | 37.90 | 48.67 | 54.32 | 51.39 | 36.73 | 26.65 | 16.90 | 15.55 | 29.27 | |||||||||||||
1962 | 14.61 | 21.89 | 21.71 | 34.40 | 36.13 | 44.03 | 48.74 | l | 48.06 | 41.40 | 33.26 | 23.80 | 11.35 | 30.06 | a | |||||||||||
1963 | 3.35 | 19.79 | 13.48 | 19.61 | b | 33.00 | 37.47 | 47.29 | 50.65 | 42.10 | 32.74 | 22.27 | 4.77 | 27.21 | ||||||||||||
1964 | 2.68 | 4.72 | 9.10 | 22.24 | e | 30.29 | 38.03 | 47.68 | 42.97 | 35.17 | 32.68 | ----- | z | 13.20 | k | 26.56 | b | |||||||||
1965 | 11.39 | 7.96 | 17.54 | c | 33.27 | 37.42 | 41.93 | 54.71 | 52.06 | 40.03 | 34.50 | c | 28.77 | 22.65 | 31.85 | |||||||||||
1966 | 13.93 | b | 11.93 | 22.65 | 30.70 | 40.81 | 49.30 | 54.58 | 55.84 | 49.23 | 35.42 | 27.50 | 20.65 | 34.38 | ||||||||||||
1967 | 12.77 | 20.64 | 24.55 | 26.97 | 37.45 | 45.67 | 56.35 | 53.84 | 49.97 | 34.13 | 27.17 | 12.35 | 33.49 | |||||||||||||
1968 | 14.42 | 28.31 | 27.94 | 30.80 | 37.55 | 46.30 | 53.03 | 52.03 | 45.13 | 32.48 | 24.80 | 8.94 | 33.48 | |||||||||||||
1969 | 20.71 | 22.32 | 19.48 | 29.07 | 40.58 | 44.47 | 52.52 | 58.23 | 50.27 | 34.87 | 26.10 | 20.74 | 34.95 | |||||||||||||
1970 | 18.55 | 28.46 | 24.32 | 25.73 | 41.23 | 51.20 | 58.29 | 56.10 | 42.90 | 31.55 | 24.20 | 17.58 | 35.01 | |||||||||||||
1971 | 14.33 | a | 17.61 | 23.71 | 32.70 | 37.90 | 47.30 | 55.74 | 57.48 | 46.77 | 34.87 | 26.53 | 16.35 | 34.28 | ||||||||||||
1972 | 16.52 | 19.59 | 29.03 | 30.90 | 39.77 | 50.73 | 56.58 | 53.29 | 46.37 | 39.19 | 24.53 | 14.29 | 35.07 | |||||||||||||
1973 | 10.97 | 24.75 | 23.55 | t | 30.57 | 42.10 | 50.60 | 55.45 | 53.84 | 46.13 | 32.90 | 22.55 | a | 19.55 | 35.40 | a | ||||||||||
1974 | 16.32 | 19.00 | 29.06 | 31.73 | 41.74 | 49.43 | 57.35 | 51.48 | 45.33 | 41.68 | 26.70 | 16.03 | 35.49 | |||||||||||||
1975 | 13.52 | 20.81 | a | 24.74 | 27.93 | 36.87 | a | 47.93 | 56.06 | 53.39 | 48.43 | 32.65 | 22.47 | 21.77 | 33.88 | |||||||||||
1976 | 16.00 | 28.59 | 23.46 | c | 31.41 | a | 43.48 | 46.93 | 55.42 | 52.90 | 47.50 | 33.50 | a | 24.64 | b | 15.71 | 34.96 | |||||||||
1977 | 13.71 | 21.75 | 20.06 | 32.27 | 38.29 | 52.55 | a | 58.26 | 57.90 | 46.33 | 38.06 | 25.77 | 22.39 | 35.61 | ||||||||||||
1978 | 26.26 | 25.75 | 34.06 | 33.63 | 40.03 | 47.83 | 53.77 | 50.58 | 46.03 | 37.16 | 27.90 | 12.45 | 36.29 | |||||||||||||
1979 | 14.81 | 16.25 | 27.29 | 29.37 | 39.45 | 48.77 | 53.48 | 50.74 | 47.80 | 37.45 | 24.53 | 18.84 | 34.07 | |||||||||||||
1980 | 23.57 | a | 27.72 | 25.94 | 34.30 | 40.84 | 45.30 | 54.29 | 53.61 | 48.67 | 35.16 | 26.13 | 24.32 | 36.65 | ||||||||||||
1981 | 21.74 | 22.08 | b | 28.52 | 39.00 | 41.87 | 50.90 | 59.61 | 54.48 | 48.33 | 31.65 | 28.87 | 26.80 | a | 37.82 | |||||||||||
1982 | 20.52 | 30.12 | b | 34.07 | c | 33.57 | 40.48 | 44.97 | 52.61 | 56.77 | 49.00 | a | 34.52 | 26.67 | 20.26 | 36.96 | ||||||||||
1983 | 22.23 | 26.89 | 28.84 | 29.70 | 36.73 | a | 47.53 | 55.03 | 54.68 | 49.10 | 36.87 | 27.00 | 23.90 | a | 36.54 | |||||||||||
1984 | 18.77 | 19.34 | 24.21 | b | 28.33 | 42.90 | 48.93 | 55.52 | 55.97 | 47.03 | 33.26 | 24.07 | 22.81 | 35.10 | ||||||||||||
1985 | 18.52 | 19.14 | 26.74 | 34.03 | 42.61 | 48.20 | 57.73 | a | 52.19 | 43.70 | 37.67 | a | 23.00 | b | 20.81 | 35.36 | ||||||||||
1986 | 24.07 | a | 25.07 | 30.97 | 33.87 | 41.90 | 48.93 | 53.07 | a | 56.32 | 42.33 | 34.68 | 26.73 | 21.97 | 36.66 | |||||||||||
1987 | 14.37 | a | 24.18 | 25.23 | 33.87 | 40.97 | 50.57 | 51.48 | 51.84 | 46.20 | 39.16 | 29.17 | 18.27 | a | 35.44 | |||||||||||
1988 | 18.16 | 24.24 | 23.29 | 34.50 | 39.32 | 50.17 | 56.48 | 54.42 | 44.63 | 39.58 | 25.07 | 18.39 | 35.69 | |||||||||||||
1989 | 13.67 | a | 20.07 | 29.23 | 35.63 | 39.52 | 49.77 | 56.32 | 51.90 | 46.53 | 33.52 | 24.33 | 16.32 | 34.73 | ||||||||||||
1990 | 17.32 | 21.11 | 28.65 | 35.90 | 39.61 | 49.83 | 55.71 | 52.58 | 50.47 | 36.19 | 24.00 | 11.35 | 35.23 | |||||||||||||
1991 | 18.07 | a | 26.29 | 25.42 | 26.93 | 36.00 | 45.33 | 56.32 | 54.87 | 47.57 | 38.06 | 26.77 | 20.58 | 35.18 | ||||||||||||
1992 | 17.68 | 28.03 | 31.83 | a | 37.33 | 44.58 | 45.93 | 52.42 | 53.43 | a | 47.37 | 39.13 | 22.20 | 17.28 | b | 36.43 | ||||||||||
1993 | 24.68 | 26.71 | 29.81 | 33.21 | a | 41.35 | 47.13 | 51.32 | 53.97 | 45.27 | 36.19 | 24.33 | 18.32 | 36.02 | ||||||||||||
1994 | 19.23 | 20.46 | 31.23 | 34.93 | 40.45 | 52.17 | 56.32 | 57.71 | 48.80 | 35.13 | 21.30 | 23.23 | 36.75 | |||||||||||||
1995 | 24.21 | c | 26.79 | 30.77 | 32.10 | 38.55 | 46.30 | 52.83 | a | 56.84 | 49.50 | 34.43 | a | 26.41 | a | 21.00 | 36.65 | |||||||||
1996 | 18.87 | 26.45 | 28.35 | 32.07 | 41.03 | 48.73 | 58.26 | 55.63 | a | 46.07 | 34.84 | 27.40 | 22.30 | a | 36.67 | |||||||||||
1997 | 21.55 | 23.04 | 27.30 | a | 33.21 | a | 42.07 | c | 46.00 | m | 52.90 | 55.84 | 52.33 | 34.29 | 27.13 | 21.81 | 35.59 | a | ||||||||
1998 | 22.57 | a | 23.71 | 27.87 | 32.13 | 36.97 | 42.53 | 54.84 | 55.90 | 50.75 | b | 35.87 | 26.13 | 20.90 | 35.85 | |||||||||||
1999 | 20.52 | 23.68 | 25.87 | 30.43 | 37.97 | 46.73 | 56.03 | 54.84 | 47.57 | 33.10 | 28.23 | 19.39 | 35.36 | |||||||||||||
2000 | 22.23 | 27.14 | 27.65 | 35.07 | 41.87 | 51.13 | 52.87 | a | 59.16 | 46.48 | a | 38.37 | a | 20.22 | c | 19.73 | a | 36.83 | ||||||||
2001 | 19.30 | a | 24.19 | a | 29.19 | 33.90 | 41.50 | a | 47.17 | 52.83 | a | 53.93 | b | 48.80 | 36.61 | 30.67 | 16.74 | 36.24 | ||||||||
2002 | 17.83 | a | 19.36 | 24.39 | 33.48 | c | 38.81 | 48.77 | 58.10 | 52.58 | 48.77 | 37.20 | a | 28.10 | 17.19 | 35.38 | ||||||||||
2003 | 24.65 | 22.07 | a | 26.55 | 30.67 | 29.00 | w | 47.79 | b | 56.32 | 56.77 | 45.40 | 40.13 | 25.40 | 18.48 | 35.84 | a | |||||||||
2004 | 18.57 | a | 18.93 | 31.52 | 34.07 | 41.06 | 48.73 | 56.71 | 53.57 | a | 45.87 | 38.57 | a | 28.40 | 22.48 | 36.54 | ||||||||||
2005 | 26.74 | 28.67 | a | 26.16 | 33.60 | 41.07 | a | 46.50 | 56.55 | b | 55.23 | 45.67 | 39.29 | 26.93 | 17.58 | 37.00 | ||||||||||
2006 | 20.58 | 22.14 | 26.52 | 34.43 | 43.32 | 52.60 | 59.57 | a | 54.76 | b | 42.90 | a | 37.32 | 25.00 | 17.00 | 36.34 | ||||||||||
2007 | 16.23 | a | 23.12 | b | 29.65 | 34.03 | 43.74 | 48.90 | 59.03 | 57.10 | 48.73 | 36.07 | a | 29.43 | 19.00 | 37.09 | ||||||||||
2008 | 18.13 | 18.92 | c | 24.90 | 29.55 | a | ----- | z | 44.62 | d | 51.52 | 54.68 | 47.62 | a | 35.58 | 27.70 | c | 16.73 | a | 33.63 | a | |||||
2009 | 19.40 | a | 24.57 | 25.61 | 30.97 | 43.90 | 47.23 | 56.35 | 49.68 | 47.73 | 32.42 | 27.03 | 12.21 | b | 34.76 | |||||||||||
2010 | 19.52 | 21.21 | 27.00 | ----- | z | 35.90 | 47.13 | 57.74 | 56.45 | 46.03 | 40.87 | 24.50 | 24.97 | a | 36.48 | a | ||||||||||
2011 | 14.48 | b | 19.71 | 27.10 | b | 31.76 | a | 36.45 | 47.13 | 56.86 | b | 55.29 | 47.69 | a | 36.77 | 23.62 | a | 18.10 | 34.58 | |||||||
2012 | 15.53 | a | 21.72 | 24.23 | 34.31 | a | 43.40 | a | 49.60 | 54.61 | 55.00 | 45.00 | 35.13 | 24.87 | 15.13 | 34.88 | ||||||||||
2013 | 4.52 | b | 16.93 | 23.53 | a | 28.59 | a | 36.93 | a | 47.33 | ----- | z | 51.81 | e | 47.47 | 29.03 | 26.08 | d | 12.00 | m | 31.22 | b | ||||
2014 | 10.65 | 15.04 | 23.10 | 27.53 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.08 | h | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 17.32 | 21.54 | 25.57 | 31.52 | 39.54 | 47.34 | 54.71 | 53.59 | 46.04 | 35.21 | 25.07 | 18.19 | 34.87 | |||||||||||||
S.D. | 5.17 | 5.15 | 4.48 | 3.46 | 2.87 | 2.94 | 2.69 | 2.94 | 3.19 | 3.03 | 2.92 | 4.29 | 1.98 | |||||||||||||
SKEW | -0.71 | -0.83 | -1.05 | -0.94 | -0.82 | -0.96 | -0.58 | -0.80 | -1.02 | -0.34 | -0.85 | -0.64 | -1.63 | |||||||||||||
MAX | 26.74 | 30.12 | 34.07 | 39.00 | 44.58 | 52.60 | 59.61 | 59.16 | 52.33 | 41.68 | 30.67 | 26.80 | 37.82 | |||||||||||||
MIN | 2.68 | 4.72 | 9.10 | 19.61 | 30.29 | 37.47 | 47.29 | 42.97 | 35.17 | 26.65 | 16.50 | 4.77 | 27.21 | |||||||||||||
YRS | 63 | 63 | 63 | 63 | 61 | 62 | 61 | 63 | 63 | 63 | 62 | 61 | 54 |