YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 20.13 | f | 30.29 | 36.90 | 40.97 | 47.59 | a | 49.58 | 49.81 | 41.70 | 37.45 | 34.90 | a | 16.53 | a | 38.57 | b | |||||||
1933 | 23.00 | 12.67 | a | 29.35 | 33.60 | 35.97 | 45.37 | 52.03 | 51.00 | 39.90 | 36.16 | 31.47 | 32.00 | g | 35.50 | a | ||||||||||
1934 | ----- | z | 30.64 | 32.06 | 37.43 | 42.26 | 44.70 | 50.50 | a | 49.52 | 39.13 | 39.10 | 34.23 | 26.00 | 38.69 | a | ||||||||||
1935 | 22.97 | 26.46 | ----- | z | ----- | z | ----- | z | 42.24 | a | 50.00 | 46.85 | d | 44.70 | 34.08 | r | 24.57 | 26.93 | a | 35.59 | d | |||||
1936 | 28.45 | 6.17 | 28.03 | ----- | z | 46.23 | 48.70 | 48.13 | 50.03 | ----- | z | ----- | z | ----- | z | ----- | z | 36.53 | e | |||||||
1937 | 0.06 | 21.63 | a | 33.10 | ----- | z | ----- | z | 46.03 | 55.45 | 45.03 | 44.73 | 37.10 | 34.57 | 29.19 | 34.69 | b | |||||||||
1938 | 25.90 | 26.14 | 29.68 | ----- | z | 36.84 | 50.00 | 54.42 | 46.00 | 45.90 | ----- | z | 26.03 | 21.65 | 36.26 | b | ||||||||||
1939 | 26.39 | 20.25 | 30.65 | ----- | z | 43.20 | u | 44.37 | 50.77 | 49.19 | 41.67 | 30.97 | 26.57 | 29.45 | 35.03 | b | ||||||||||
1940 | 23.84 | 29.72 | 32.77 | 38.03 | 42.81 | 48.50 | 53.29 | 47.53 | a | 50.50 | 40.87 | a | 24.07 | a | 26.54 | g | 39.27 | a | ||||||||
1941 | 24.06 | 29.32 | 32.32 | 37.63 | 43.10 | a | 48.27 | 55.55 | 52.06 | 40.53 | 33.87 | a | 29.24 | a | 26.16 | 37.68 | ||||||||||
1942 | 15.52 | 24.64 | 27.77 | 34.67 | 40.23 | 44.57 | 50.58 | 49.94 | 40.70 | 34.68 | 28.43 | 24.94 | 34.72 | |||||||||||||
1943 | 14.83 | a | 25.46 | 25.77 | 37.67 | 38.03 | 44.93 | 49.90 | 46.77 | 42.03 | 37.19 | 28.97 | 22.48 | 34.50 | ||||||||||||
1944 | 20.94 | 22.62 | 24.94 | 34.17 | 41.60 | a | 47.67 | 51.58 | 48.26 | 44.87 | 38.48 | 28.47 | 22.61 | 35.52 | ||||||||||||
1945 | 28.74 | 27.89 | 29.42 | 31.53 | 42.35 | 46.03 | 50.81 | 51.42 | 42.57 | 37.39 | 27.80 | 24.38 | b | 36.69 | ||||||||||||
1946 | 22.81 | 26.11 | 31.65 | 35.21 | b | 42.39 | c | 44.36 | b | 50.26 | 51.87 | 44.07 | 31.16 | 27.17 | a | 25.10 | 36.01 | |||||||||
1947 | 14.70 | a | 25.82 | 30.58 | 33.77 | 43.87 | 46.07 | 52.16 | 48.97 | 46.10 | 41.77 | 29.21 | a | 26.58 | 36.63 | |||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.83 | 49.65 | 50.39 | 41.13 | 33.29 | 27.33 | 14.52 | 38.45 | e | |||||||
1949 | -1.74 | 17.36 | 30.52 | 34.63 | 44.39 | 44.57 | 49.12 | n | 49.39 | 44.60 | 28.68 | 32.70 | 23.12 | g | 32.51 | b | ||||||||||
1950 | -2.67 | a | 19.32 | 28.19 | 31.83 | 36.97 | 48.21 | a | 52.35 | 50.35 | 42.67 | 36.32 | 28.70 | 29.23 | 33.46 | |||||||||||
1951 | 21.10 | 26.04 | a | 26.13 | 31.75 | b | 40.52 | 46.17 | 51.87 | 48.26 | 42.87 | 35.61 | 27.87 | 15.73 | a | 34.49 | ||||||||||
1952 | 13.52 | 23.52 | 26.90 | 34.57 | 41.52 | 47.40 | 50.45 | 48.16 | 44.60 | 36.58 | 21.87 | 25.52 | 34.55 | |||||||||||||
1953 | 31.61 | 26.82 | 28.45 | 32.23 | 38.39 | 42.00 | ----- | z | ----- | z | ----- | z | 34.97 | 30.17 | 24.74 | 32.15 | c | |||||||||
1954 | 16.21 | b | 26.04 | 24.63 | a | 29.63 | 37.60 | a | 39.87 | ----- | z | 46.94 | ----- | z | ----- | z | ----- | z | 25.29 | 30.78 | d | |||||
1955 | 21.23 | 21.04 | 23.17 | a | 31.20 | 36.52 | 47.63 | 49.87 | 46.35 | 42.00 | 36.06 | 19.90 | 20.87 | 32.99 | ||||||||||||
1956 | 22.71 | 13.04 | a | 27.97 | 36.13 | 43.16 | 45.53 | 53.26 | 50.97 | 41.30 | 35.55 | 26.37 | 23.77 | 34.98 | ||||||||||||
1957 | 7.94 | 19.46 | 29.87 | a | 34.70 | 46.84 | 47.63 | 50.19 | 47.19 | 43.90 | 35.71 | 24.23 | 27.77 | a | 34.62 | |||||||||||
1958 | 26.32 | 34.22 | e | 28.58 | 33.25 | f | 45.61 | 52.37 | 56.13 | 52.94 | 43.90 | 36.06 | 29.45 | a | 28.35 | 39.45 | a | |||||||||
1959 | 24.90 | 26.39 | 29.48 | 35.27 | 38.45 | 46.83 | 50.74 | 46.55 | 45.37 | 35.16 | 23.60 | 24.58 | 35.61 | |||||||||||||
1960 | 14.94 | 23.90 | 27.81 | 33.87 | 37.29 | 44.37 | 53.61 | 47.74 | 41.67 | 35.45 | 26.83 | a | 20.03 | 33.96 | ||||||||||||
1961 | 20.29 | 30.50 | 30.29 | 34.07 | 41.61 | 49.23 | 52.68 | 54.42 | 37.43 | 30.58 | 21.73 | 19.70 | a | 35.21 | ||||||||||||
1962 | 17.26 | 27.00 | 27.52 | 34.33 | 38.50 | a | 42.73 | 49.55 | 49.13 | 44.43 | 37.03 | 32.14 | a | 28.55 | 35.68 | |||||||||||
1963 | 14.32 | 29.71 | 30.81 | 35.00 | 41.32 | 47.73 | ----- | z | 50.84 | 47.40 | 37.00 | 31.03 | a | 22.71 | 35.26 | a | ||||||||||
1964 | 24.16 | 22.83 | ----- | z | 30.27 | 36.03 | 45.80 | 49.81 | 46.13 | 37.47 | 34.03 | 28.27 | 19.65 | 34.04 | a | |||||||||||
1965 | 25.39 | ----- | z | 24.45 | 37.33 | 36.77 | 46.89 | c | 51.87 | 51.29 | 37.60 | 34.29 | 33.30 | 23.70 | a | 36.63 | a | |||||||||
1966 | 22.97 | 27.43 | 29.52 | 32.10 | 38.87 | 43.67 | 48.65 | 49.13 | 44.80 | 31.39 | 30.33 | 27.45 | 35.52 | |||||||||||||
1967 | 27.00 | 27.00 | 27.29 | 31.20 | 38.20 | a | 48.87 | 50.03 | 50.19 | 45.13 | 33.61 | 26.83 | 21.19 | 35.55 | ||||||||||||
1968 | 21.32 | 28.59 | 30.29 | 30.20 | 39.94 | 45.97 | 52.26 | 49.23 | 42.63 | 33.13 | 29.87 | 20.26 | 35.31 | |||||||||||||
1969 | 5.87 | a | 19.57 | 26.61 | 35.47 | 42.55 | 50.97 | a | 48.48 | 44.74 | 43.30 | 29.52 | 26.17 | 25.30 | a | 33.21 | ||||||||||
1970 | 20.97 | 28.25 | 27.77 | 30.43 | 38.58 | 50.27 | 52.84 | 46.94 | 35.87 | 30.35 | 26.80 | 21.65 | 34.23 | |||||||||||||
1971 | 24.52 | 24.11 | 25.65 | 32.03 | 41.45 | 43.63 | 51.16 | 49.17 | a | 36.37 | 27.87 | 26.00 | 16.48 | 33.20 | ||||||||||||
1972 | 16.61 | 21.48 | 29.97 | 30.07 | 41.65 | 46.93 | 49.00 | 49.71 | 36.07 | a | 31.48 | 30.33 | ----- | z | 34.85 | a | ||||||||||
1973 | 17.77 | 25.54 | 29.32 | 30.53 | 39.16 | 45.67 | 49.07 | a | 45.68 | 41.33 | 30.39 | 26.13 | ----- | z | 34.60 | a | ||||||||||
1974 | 16.00 | 28.07 | 28.48 | 35.57 | 37.58 | 47.33 | 50.97 | ----- | z | 38.07 | 27.93 | c | ----- | z | 25.23 | 33.52 | b | |||||||||
1975 | 13.14 | b | ----- | z | ----- | z | 32.67 | x | 39.58 | 44.30 | 55.03 | 49.03 | 43.20 | 36.87 | 27.87 | 23.77 | 36.98 | c | ||||||||
1976 | 23.55 | 25.48 | b | 26.93 | a | 35.43 | 40.19 | 43.70 | 51.68 | 50.55 | 45.87 | 31.70 | a | 26.33 | 20.13 | 35.13 | ||||||||||
1977 | 16.29 | 25.64 | 26.97 | 32.97 | 37.19 | 49.27 | 50.55 | 54.19 | 42.07 | 31.74 | 25.93 | a | 23.42 | 34.69 | ||||||||||||
1978 | 23.94 | 30.43 | 32.52 | 35.70 | 38.97 | 47.07 | a | 51.61 | 50.68 | 42.80 | 30.55 | 21.33 | 11.48 | 34.76 | ||||||||||||
1979 | 0.74 | 21.68 | 29.06 | 32.00 | 41.39 | 44.90 | 51.58 | 50.71 | 44.17 | 36.06 | 22.60 | 25.16 | 33.34 | |||||||||||||
1980 | 11.06 | 25.86 | 26.03 | 36.10 | 41.00 | 43.13 | 45.97 | 43.58 | 40.43 | 32.55 | 27.10 | a | 24.97 | 33.15 | ||||||||||||
1981 | 26.87 | 26.29 | 31.10 | 33.53 | 41.13 | 43.50 | 47.74 | 51.16 | 41.62 | a | 31.90 | ----- | z | ----- | z | 37.48 | b | |||||||||
1982 | ----- | z | 31.58 | i | 40.54 | g | 42.36 | p | 56.20 | k | 54.85 | j | 47.60 | a | 57.45 | ----- | z | ----- | z | ----- | z | ----- | z | 52.53 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.69 | 24.53 | 28.71 | 33.83 | 40.34 | 46.33 | 51.09 | 49.25 | 42.37 | 34.25 | 27.71 | 23.33 | 34.84 | |||||||||||||
S.D. | 8.19 | 5.14 | 2.36 | 2.38 | 2.73 | 2.65 | 2.17 | 2.63 | 3.08 | 3.28 | 3.50 | 4.12 | 1.16 | |||||||||||||
SKEW | -1.06 | -1.34 | -0.20 | -0.04 | 0.37 | 0.22 | 0.30 | 0.43 | -0.21 | -0.02 | 0.01 | -0.83 | 0.30 | |||||||||||||
MAX | 31.61 | 34.22 | 33.10 | 38.03 | 46.84 | 52.83 | 56.13 | 57.45 | 50.50 | 41.77 | 34.90 | 29.45 | 37.68 | |||||||||||||
MIN | -2.67 | 6.17 | 23.17 | 29.63 | 35.97 | 39.87 | 45.97 | 43.58 | 35.87 | 27.87 | 19.90 | 11.48 | 32.99 | |||||||||||||
YRS | 47 | 46 | 46 | 42 | 46 | 50 | 47 | 49 | 47 | 46 | 46 | 43 | 28 |