YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.70 | k | ----- | z |
1915 | 28.33 | d | 30.11 | a | 36.17 | g | 40.67 | 41.90 | 53.37 | 60.97 | 59.06 | 49.17 | 43.47 | p | 33.76 | e | 31.39 | 42.87 | b | |||||||
1916 | 26.29 | x | 33.95 | i | 36.58 | ----- | z | 42.32 | 49.67 | 60.52 | 57.68 | 50.53 | 36.71 | 27.00 | b | 21.74 | 42.53 | c | ||||||||
1917 | 21.48 | 28.71 | 27.23 | 35.93 | 37.81 | 55.10 | 60.32 | 56.42 | 53.50 | 41.90 | 32.00 | 29.30 | d | 39.98 | ||||||||||||
1918 | 23.74 | 25.79 | 30.03 | 35.07 | 37.55 | 54.27 | 56.81 | 52.13 | 42.97 | 36.74 | ----- | z | ----- | z | 39.51 | b | ||||||||||
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1963 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1967 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1968 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1969 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1971 | ----- | z | ----- | z | ----- | z | 31.59 | m | 35.71 | 52.30 | j | ----- | z | 55.48 | 48.13 | 34.77 | 27.27 | h | 21.60 | f | 43.53 | h | ||||
1972 | 21.65 | n | 28.60 | x | 32.75 | k | 34.43 | 40.00 | 49.73 | 58.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.54 | h | ||||
1973 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1975 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1976 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 37.77 | 30.57 | 25.14 | b | 31.16 | i | ||
1977 | 22.87 | 25.46 | b | 25.45 | 34.40 | 38.16 | 53.30 | 56.03 | 56.58 | 52.93 | 42.77 | 36.70 | 37.87 | 40.21 | ||||||||||||
1978 | 29.87 | 25.89 | 33.19 | 33.63 | 40.03 | 54.25 | b | 56.52 | 54.23 | 49.27 | 45.89 | d | 33.29 | m | 23.30 | k | 42.28 | b | ||||||||
1979 | 20.14 | i | 23.43 | 29.00 | a | 34.83 | 41.26 | 52.93 | 57.35 | 52.68 | 50.93 | 41.90 | 27.17 | g | 22.58 | l | 42.70 | c | ||||||||
1980 | 30.78 | h | 30.55 | 29.97 | b | 35.11 | b | 38.65 | 50.83 | 59.42 | 57.00 | 50.93 | 40.48 | 32.53 | 32.16 | 41.60 | a | |||||||||
1981 | 29.52 | ----- | z | 29.97 | 38.70 | 43.48 | 57.10 | 59.90 | 56.90 | 50.53 | 39.19 | 32.79 | f | 28.96 | c | 43.43 | b | |||||||||
1982 | 26.07 | a | 27.79 | 30.94 | 34.30 | 41.45 | 46.23 | 56.16 | 56.61 | 50.73 | 35.77 | 31.40 | 25.68 | 38.59 | ||||||||||||
1983 | 25.87 | a | 28.65 | b | 30.74 | 31.00 | a | 41.29 | 47.47 | 57.36 | c | 54.86 | b | 53.60 | 41.29 | 31.43 | 29.80 | a | 39.45 | |||||||
1984 | 26.45 | 25.03 | 29.84 | 33.73 | 46.61 | 48.97 | 57.48 | 55.32 | 51.32 | b | 36.83 | a | 30.20 | 26.50 | c | 39.02 | ||||||||||
1985 | 25.61 | 23.75 | 30.29 | 39.17 | 42.68 | 53.03 | 59.55 | 55.45 | 45.97 | a | 40.52 | j | 30.59 | c | 25.20 | a | 39.21 | a | ||||||||
1986 | 29.71 | 29.75 | 33.29 | 35.88 | e | 44.32 | 52.63 | 55.81 | 58.55 | 46.63 | 36.77 | 31.37 | 26.29 | 40.08 | ||||||||||||
1987 | 22.45 | b | 27.00 | 27.06 | 37.44 | c | 41.41 | b | 51.53 | 53.19 | 54.23 | a | 47.90 | 43.36 | c | 31.27 | o | 24.00 | h | 40.56 | b | |||||
1988 | 24.76 | f | 29.10 | 30.43 | a | 35.74 | c | 41.46 | c | 52.00 | 57.48 | 55.43 | c | 47.48 | a | 44.31 | b | 31.96 | c | 24.54 | e | 40.90 | a | |||
1989 | 22.70 | a | 27.79 | 33.79 | c | ----- | z | 43.90 | a | 51.43 | 57.45 | 54.00 | a | 49.97 | 39.68 | f | 32.59 | a | 25.81 | d | 39.94 | b | ||||
1990 | 23.16 | 22.59 | a | 30.74 | d | 37.26 | c | 41.66 | b | 53.23 | 57.81 | 52.97 | a | 51.38 | a | 40.69 | b | 30.50 | 20.81 | d | 38.57 | |||||
1991 | 25.53 | a | 28.89 | a | 27.17 | a | 32.68 | h | 40.45 | i | 46.31 | a | 56.30 | a | 56.33 | a | 47.29 | p | 42.73 | i | 29.11 | k | 26.92 | e | 38.21 | e |
1992 | 22.63 | l | 29.72 | 30.93 | c | 37.73 | 44.07 | a | 48.37 | 54.71 | 56.55 | 48.65 | g | 41.74 | 27.07 | a | 23.66 | b | 39.45 | b | ||||||
1993 | 29.55 | 28.86 | 31.63 | a | 37.50 | 44.81 | 50.38 | a | 55.55 | 56.76 | b | 47.75 | b | 40.16 | 28.96 | b | 25.58 | l | 41.08 | a | ||||||
1994 | 21.67 | p | 22.94 | k | 30.14 | j | 35.50 | l | 41.03 | b | 53.81 | c | 57.83 | b | 57.31 | b | 50.50 | f | 36.05 | l | 26.47 | m | 24.76 | n | 52.50 | h |
1995 | 26.63 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.81 | 27.31 | 30.41 | 35.92 | 41.37 | 51.56 | 57.50 | 55.76 | 49.58 | 39.95 | 31.16 | 27.16 | 39.41 | |||||||||||||
S.D. | 2.90 | 2.42 | 2.59 | 2.29 | 2.61 | 2.83 | 1.94 | 1.80 | 2.66 | 3.14 | 2.36 | 4.14 | 0.70 | |||||||||||||
SKEW | 0.13 | -0.52 | 0.28 | 0.11 | -0.22 | -0.29 | -0.01 | -0.30 | -0.58 | 0.05 | 0.21 | 0.87 | -0.13 | |||||||||||||
MAX | 29.87 | 30.55 | 36.58 | 40.67 | 46.61 | 57.10 | 60.97 | 59.06 | 53.60 | 45.89 | 36.70 | 37.87 | 40.21 | |||||||||||||
MIN | 21.48 | 22.59 | 25.45 | 31.00 | 35.71 | 46.23 | 53.19 | 52.13 | 42.97 | 34.77 | 27.00 | 20.81 | 38.57 | |||||||||||||
YRS | 16 | 19 | 20 | 19 | 23 | 23 | 23 | 23 | 20 | 19 | 16 | 17 | 7 |