YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1911 | ----- | z | ----- | z | ----- | z | 25.87 | 33.29 | 39.83 | 50.00 | 44.19 | 46.75 | v | 33.89 | l | 29.17 | 24.35 | 35.24 | e | |||||||
1912 | 25.16 | 28.86 | h | 26.00 | b | 30.62 | n | 39.91 | h | 42.75 | f | 48.52 | 47.90 | 38.23 | d | 28.69 | b | 19.79 | p | 21.79 | b | 33.76 | e | |||
1913 | 20.08 | f | 22.39 | j | 23.84 | l | 32.03 | a | 37.52 | 43.38 | a | 48.06 | 50.96 | h | 37.50 | j | 30.67 | j | 30.28 | a | 17.17 | a | 34.74 | f | ||
1914 | 29.10 | a | 26.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.55 | j |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | 27.44 | v | 28.83 | 32.13 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.83 | k | |
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 | 26.46 | r | 29.30 | 39.65 | 37.80 | 45.58 | 43.55 | 37.07 | 31.71 | 28.52 | a | ----- | z | 36.65 | d | |||||||
1946 | ----- | z | 31.33 | y | 29.71 | 31.93 | a | 37.60 | a | 43.33 | 47.61 | ----- | z | 39.13 | 32.71 | 26.41 | a | 28.37 | a | 35.20 | c | |||||
1947 | 20.10 | 27.43 | 29.35 | 33.63 | 40.55 | 42.50 | 47.87 | 44.26 | 40.33 | 36.23 | 30.90 | a | 26.58 | 34.98 | ||||||||||||
1948 | 21.87 | 21.59 | 27.30 | a | ----- | z | ----- | z | ----- | z | ----- | z | 40.69 | r | 40.77 | d | 29.28 | f | 26.52 | i | 16.34 | b | 25.57 | g | ||
1949 | 3.36 | f | 20.18 | q | 26.88 | n | 31.03 | ----- | z | ----- | z | ----- | z | ----- | z | 36.07 | o | ----- | z | 29.23 | h | ----- | z | 31.03 | k | |
1950 | 8.83 | b | 23.18 | 28.96 | d | 28.83 | 33.45 | 43.00 | e | 46.00 | g | 44.06 | ----- | z | 37.00 | 29.20 | 29.36 | f | 30.72 | c | ||||||
1951 | 19.12 | e | 23.89 | 22.20 | a | 27.90 | 36.47 | a | 39.63 | 44.26 | 40.13 | 37.43 | 31.82 | c | 25.20 | 19.13 | 30.60 | |||||||||
1952 | 16.55 | 23.90 | 24.58 | 29.93 | 37.32 | 43.00 | c | 43.90 | b | 42.11 | d | 40.63 | 32.74 | 19.37 | 25.17 | b | 31.60 | |||||||||
1953 | 34.55 | 26.04 | 27.32 | 30.00 | 35.90 | a | 38.60 | 42.94 | 45.61 | 40.43 | 31.97 | 34.62 | d | 28.26 | 34.69 | |||||||||||
1954 | 24.93 | a | 28.25 | 20.29 | 31.45 | a | 36.29 | 40.90 | 43.25 | c | 42.54 | c | 37.93 | 29.42 | 30.66 | a | 19.87 | 32.15 | ||||||||
1955 | 19.45 | 17.89 | a | 22.16 | 27.72 | a | 34.45 | 42.40 | 43.29 | 39.16 | 38.40 | 33.08 | g | 25.57 | 25.13 | a | 30.51 | a | ||||||||
1956 | 23.39 | 20.42 | c | 24.89 | c | 28.77 | 38.00 | b | 38.48 | c | 44.48 | 41.39 | 35.87 | 33.45 | b | 25.07 | 24.61 | 31.57 | ||||||||
1957 | 8.29 | 25.68 | 31.59 | d | 32.37 | 40.35 | 42.90 | 44.38 | g | 40.68 | c | 40.23 | 36.07 | c | 22.13 | g | 28.19 | 32.64 | b | |||||||
1958 | 27.71 | 33.36 | 25.15 | d | 30.60 | 40.26 | 47.33 | 48.29 | g | 48.03 | 41.37 | 30.43 | c | 29.87 | 29.70 | a | 34.89 | a | ||||||||
1959 | 26.00 | 25.18 | 28.52 | 28.87 | 32.65 | 42.12 | e | 44.47 | a | 41.89 | d | 40.50 | f | 32.90 | 22.73 | 20.11 | d | 31.40 | a | |||||||
1960 | 13.74 | 22.79 | 27.61 | 31.66 | a | 35.03 | a | 39.08 | e | 49.24 | n | 41.61 | 38.52 | a | 33.61 | 26.23 | 23.23 | a | 30.28 | a | ||||||
1961 | 27.26 | 30.16 | c | 30.55 | 30.90 | 35.48 | 43.27 | 44.29 | c | 48.45 | b | 34.37 | 30.87 | 22.07 | 24.34 | b | 33.50 | |||||||||
1962 | 18.10 | 24.68 | 26.00 | 31.93 | 35.55 | 41.16 | e | 43.29 | 44.94 | 41.43 | 34.55 | 31.90 | 26.77 | 33.36 | ||||||||||||
1963 | 13.37 | a | 30.56 | a | 26.03 | 31.93 | 37.23 | 41.00 | a | 42.67 | a | 44.39 | 46.10 | 35.74 | 31.73 | 24.26 | 33.75 | |||||||||
1964 | 26.74 | 20.03 | 24.55 | 27.83 | 33.29 | 42.77 | 46.90 | 43.13 | 35.80 | 31.65 | 28.47 | 24.81 | 32.16 | |||||||||||||
1965 | 26.90 | 26.21 | 21.29 | 32.77 | 31.15 | k | 41.32 | b | 45.42 | 46.13 | 33.87 | 34.06 | 32.37 | 21.20 | f | 34.03 | b | |||||||||
1966 | 26.81 | 23.07 | 25.52 | 27.80 | 34.94 | 40.81 | c | 43.38 | g | 42.03 | 40.67 | 33.45 | 30.62 | a | 28.48 | 32.20 | a | |||||||||
1967 | 29.16 | 25.93 | 26.65 | 28.53 | 33.94 | 42.91 | h | 44.00 | 46.13 | 42.37 | 35.10 | 27.87 | 21.35 | 32.82 | a | |||||||||||
1968 | 24.48 | 31.07 | 28.87 | 25.77 | 35.48 | 40.70 | 44.61 | 47.06 | 40.17 | ----- | z | 30.23 | 21.42 | g | 34.85 | b | ||||||||||
1969 | 12.58 | 25.61 | 25.39 | 29.53 | 38.10 | 45.63 | ----- | z | ----- | z | 40.70 | 29.16 | 26.83 | 26.19 | 29.97 | b | ||||||||||
1970 | 24.73 | a | 31.04 | 27.00 | 26.07 | 35.42 | 45.17 | 47.74 | 43.03 | 36.43 | 30.23 | 28.13 | 25.32 | c | 33.36 | |||||||||||
1971 | 29.79 | c | 24.29 | 26.23 | a | 29.37 | 37.65 | 39.77 | 44.03 | 46.45 | 35.03 | 29.61 | 27.93 | 25.42 | 32.96 | |||||||||||
1972 | 22.87 | 26.21 | 30.87 | 27.50 | 37.42 | 42.93 | 46.61 | 45.87 | 37.87 | 30.52 | 31.33 | 15.32 | 32.94 | |||||||||||||
1973 | 21.47 | a | 27.43 | ----- | z | 28.87 | 37.19 | 41.93 | 44.68 | 41.90 | 41.48 | c | 33.61 | 30.37 | 30.42 | 34.49 | a | |||||||||
1974 | 19.77 | 27.43 | 29.32 | 30.33 | 34.97 | 43.00 | 45.86 | c | 44.52 | 40.31 | d | 31.81 | 30.40 | 28.12 | e | 33.82 | ||||||||||
1975 | 26.32 | 23.50 | 26.45 | 26.13 | 35.10 | 41.63 | 49.61 | 42.45 | 37.60 | 37.26 | 29.43 | 28.23 | 33.64 | |||||||||||||
1976 | 25.94 | 24.86 | 25.45 | 28.80 | 35.23 | 37.47 | 46.35 | 47.45 | 42.13 | 32.03 | 32.90 | 20.35 | 33.25 | |||||||||||||
1977 | 17.32 | 26.39 | 25.65 | 31.17 | 34.28 | b | 43.87 | 45.58 | 50.16 | 40.03 | 33.48 | 26.92 | f | 28.65 | 34.23 | a | ||||||||||
1978 | 27.43 | a | 30.64 | 29.84 | 31.93 | 33.90 | 42.77 | 45.84 | 45.48 | 40.13 | 31.48 | 20.10 | ----- | z | 34.51 | a | ||||||||||
1979 | 3.58 | 27.75 | 29.42 | 32.77 | 36.48 | 41.23 | 44.90 | 46.35 | 42.53 | 38.19 | 27.33 | 27.81 | 33.20 | |||||||||||||
1980 | 19.52 | 28.62 | 27.81 | 33.03 | 36.97 | 40.53 | 45.87 | 40.48 | 42.03 | 33.13 | 30.93 | b | 29.96 | g | 34.45 | a | ||||||||||
1981 | 26.81 | 26.54 | 29.29 | 32.17 | 37.45 | 42.47 | 43.77 | 45.23 | 40.67 | l | 34.10 | 29.97 | 26.71 | 34.04 | a | |||||||||||
1982 | 21.35 | 26.04 | 27.16 | 27.60 | 34.35 | 44.83 | 46.55 | 46.17 | b | 40.77 | 33.19 | 25.67 | 25.26 | 33.25 | ||||||||||||
1983 | 29.61 | 33.18 | 33.65 | 30.03 | a | 37.35 | 41.05 | i | 45.65 | 48.26 | 37.27 | 35.55 | 33.57 | 17.77 | a | 34.72 | a | |||||||||
1984 | 24.65 | 28.55 | 32.00 | 31.07 | 36.74 | 40.50 | 44.74 | 45.26 | 38.70 | 32.26 | 30.73 | 21.60 | a | 33.90 | ||||||||||||
1985 | 20.19 | 22.04 | a | 24.58 | 32.83 | 36.55 | 41.62 | f | 48.52 | h | 43.16 | 37.10 | 31.39 | 17.10 | 11.39 | 27.63 | b | |||||||||
1986 | 27.90 | 28.86 | 32.58 | 28.00 | 37.06 | 45.83 | 43.35 | 46.97 | 38.47 | 33.10 | 30.73 | 25.68 | 34.88 | |||||||||||||
1987 | 22.16 | 26.50 | 29.26 | 33.53 | 38.65 | 41.57 | b | 44.59 | b | 42.77 | 38.90 | 31.52 | 28.30 | 23.48 | b | 33.44 | ||||||||||
1988 | 23.71 | 24.97 | 26.29 | 35.07 | 35.48 | 42.27 | 46.74 | h | 41.55 | 38.24 | a | 37.55 | 32.07 | 21.48 | 32.61 | a | ||||||||||
1989 | 27.23 | 13.75 | 30.52 | 34.77 | 36.03 | 42.00 | 43.00 | 42.90 | 37.13 | 33.26 | 29.03 | 20.87 | 32.54 | |||||||||||||
1990 | 28.84 | 24.14 | 27.58 | 36.20 | 35.52 | 44.07 | 47.29 | 48.06 | 42.75 | b | 33.87 | h | 29.80 | 14.81 | 34.46 | a | ||||||||||
1991 | 21.68 | 30.86 | 27.19 | 29.77 | 36.26 | 41.03 | 47.70 | h | 48.06 | 39.10 | 31.32 | 31.70 | 26.58 | 33.05 | a | |||||||||||
1992 | 28.03 | 30.55 | 28.19 | 35.73 | 38.13 | 43.50 | f | 45.60 | a | 45.41 | d | 40.03 | 34.96 | c | 27.64 | b | 20.13 | 34.04 | a | |||||||
1993 | 14.26 | 17.96 | 30.90 | 32.96 | b | 41.55 | 41.80 | 41.94 | 43.61 | 35.52 | i | 35.32 | 16.93 | a | ----- | z | 31.72 | b | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 22.49 | 25.85 | 27.40 | 30.46 | 36.43 | 41.95 | 45.34 | 44.49 | 39.24 | 33.07 | 28.25 | 23.63 | 33.16 | |||||||||||||
S.D. | 6.33 | 3.99 | 2.90 | 2.56 | 2.01 | 2.09 | 1.92 | 2.58 | 2.44 | 2.32 | 4.03 | 4.42 | 1.08 | |||||||||||||
SKEW | -0.93 | -0.57 | -0.21 | 0.16 | 0.45 | 0.11 | 0.55 | 0.05 | 0.05 | 0.28 | -1.23 | -0.75 | -0.44 | |||||||||||||
MAX | 34.55 | 33.36 | 33.65 | 36.20 | 41.55 | 47.33 | 50.00 | 50.16 | 46.10 | 38.19 | 34.62 | 30.42 | 34.98 | |||||||||||||
MIN | 3.58 | 13.75 | 20.29 | 25.77 | 32.65 | 37.47 | 41.94 | 39.16 | 33.87 | 28.69 | 16.93 | 11.39 | 30.60 | |||||||||||||
YRS | 48 | 47 | 47 | 51 | 48 | 45 | 41 | 47 | 45 | 45 | 47 | 44 | 22 |