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 | 36.58 | 44.00 | 48.53 | a | 46.65 | 41.34 | a | 29.77 | 23.31 | a | 15.58 | 35.72 | d | |||||
1921 | 21.61 | 18.36 | 26.97 | 26.97 | 36.84 | 43.23 | 51.68 | 50.06 | 44.87 | 35.23 | 26.07 | 22.94 | 33.73 | |||||||||||||
1922 | 12.10 | 18.36 | 20.84 | 28.46 | b | 37.81 | 46.70 | 51.45 | 48.19 | 43.27 | 30.84 | 19.60 | 23.77 | 31.78 | ||||||||||||
1923 | 20.84 | 17.11 | 20.71 | 30.31 | a | 37.61 | 43.90 | 50.61 | 49.35 | 40.10 | 31.10 | 22.63 | 16.65 | 31.74 | ||||||||||||
1924 | 12.97 | 19.62 | 20.32 | 27.80 | 37.97 | 46.90 | 50.74 | 46.32 | 38.53 | 30.77 | 24.43 | 13.16 | 30.80 | |||||||||||||
1925 | 11.13 | a | 23.75 | 27.10 | 32.63 | 41.65 | 47.13 | 52.00 | 49.03 | 43.24 | a | 35.29 | 23.47 | 16.61 | 33.59 | |||||||||||
1926 | 10.87 | 22.64 | 21.77 | a | 32.97 | 36.58 | 44.20 | 46.94 | 47.39 | 46.93 | 35.29 | 27.23 | 14.16 | 32.25 | ||||||||||||
1927 | 21.39 | 25.62 | b | 23.07 | a | 32.60 | 37.42 | 43.17 | 49.16 | 51.16 | 43.74 | c | 31.00 | a | 30.70 | c | 12.87 | 33.49 | ||||||||
1928 | 19.90 | a | 16.48 | 25.42 | 28.60 | 38.81 | 49.14 | a | ----- | z | 49.06 | 40.13 | 35.26 | 22.50 | 15.13 | 30.95 | a | |||||||||
1929 | 13.35 | 11.39 | 23.10 | 27.77 | 37.87 | 45.97 | 52.23 | 50.03 | 44.37 | 31.74 | 16.10 | a | 16.13 | 30.84 | ||||||||||||
1930 | 10.52 | 21.29 | 18.42 | 31.57 | 31.65 | 45.93 | 50.93 | a | 47.42 | 41.37 | 29.83 | a | 18.13 | 8.65 | 29.64 | |||||||||||
1931 | 11.29 | 20.11 | 19.32 | 30.40 | 34.81 | 46.17 | 54.16 | 52.19 | 49.03 | a | 33.69 | b | 22.23 | 16.71 | 32.51 | |||||||||||
1932 | 10.97 | 25.54 | a | 18.61 | 25.40 | 33.71 | 38.50 | 48.10 | 47.77 | 38.90 | 28.71 | 17.43 | 8.42 | 28.50 | ||||||||||||
1933 | 11.42 | 11.11 | 22.19 | 22.70 | 33.06 | 46.31 | a | 50.00 | a | 47.16 | 44.63 | 33.42 | 21.77 | 21.41 | b | 30.43 | ||||||||||
1934 | 14.87 | 20.04 | 23.52 | 29.97 | 41.70 | a | 43.93 | 50.55 | 50.52 | 40.70 | 32.39 | 24.77 | 21.65 | 32.88 | ||||||||||||
1935 | 24.48 | 21.32 | 28.32 | 33.07 | a | 37.29 | 47.00 | 50.71 | 52.52 | 43.97 | 35.06 | 25.40 | 20.68 | 34.99 | ||||||||||||
1936 | 18.77 | 24.66 | 26.61 | 33.13 | 39.90 | 47.83 | 50.87 | 50.80 | a | 44.23 | 34.55 | 24.00 | 20.32 | 34.64 | ||||||||||||
1937 | 12.29 | 21.00 | a | 23.29 | 30.13 | 40.03 | 45.63 | 50.03 | 50.87 | 46.17 | 35.10 | 24.23 | 21.32 | 33.34 | ||||||||||||
1938 | 19.10 | 21.79 | 27.57 | a | 30.17 | 36.71 | 45.73 | 49.84 | 49.71 | 44.07 | 33.71 | 20.97 | a | 23.00 | 33.53 | |||||||||||
1939 | 15.35 | 8.64 | 25.29 | 32.41 | a | 38.61 | 44.97 | 49.03 | 48.16 | 45.77 | 31.20 | a | 22.70 | 23.48 | 32.14 | |||||||||||
1940 | 18.10 | 17.55 | 25.06 | 30.50 | 38.39 | 45.37 | 49.70 | a | 47.90 | 44.33 | 33.26 | 21.20 | 23.29 | 32.89 | ||||||||||||
1941 | 20.93 | a | 23.39 | 23.45 | 29.13 | 39.37 | a | 42.67 | 47.68 | 47.87 | 43.17 | 33.93 | a | 23.17 | 19.10 | 32.82 | ||||||||||
1942 | 17.97 | 14.32 | 19.65 | 30.97 | a | 34.42 | 44.00 | 47.87 | 48.71 | 41.07 | a | 33.61 | 24.23 | 21.68 | 31.54 | |||||||||||
1943 | 19.52 | 20.86 | 22.23 | 29.63 | 37.35 | 43.47 | 47.61 | 49.61 | 39.70 | 28.10 | 18.13 | 11.03 | 30.60 | |||||||||||||
1944 | 9.77 | 16.24 | 20.77 | 26.27 | 34.48 | 40.40 | 49.61 | 49.17 | a | 43.23 | 34.23 | 22.40 | 16.58 | 30.26 | ||||||||||||
1945 | 19.06 | 21.41 | a | 22.16 | 24.67 | 36.32 | 39.33 | 47.81 | 49.55 | 42.13 | 32.94 | 22.20 | 16.81 | 31.20 | ||||||||||||
1946 | 11.06 | 16.50 | 23.23 | 33.53 | 35.39 | 45.30 | 49.26 | 50.52 | 44.70 | 31.81 | 20.63 | 19.61 | 31.79 | |||||||||||||
1947 | 14.68 | 18.68 | 21.29 | 26.20 | 37.61 | 49.10 | a | 50.87 | 51.52 | 43.63 | 36.65 | 22.20 | 17.39 | 32.48 | ||||||||||||
1948 | 16.81 | 19.03 | 19.71 | 33.57 | 40.48 | 45.80 | 50.35 | 50.39 | 43.03 | 32.94 | 19.87 | 23.48 | 32.96 | |||||||||||||
1949 | 14.06 | 20.42 | d | 25.26 | 30.43 | 38.45 | 47.47 | 52.68 | 48.39 | 45.53 | 32.68 | 27.67 | 16.23 | 33.27 | ||||||||||||
1950 | 18.71 | 21.54 | 24.19 | 31.40 | 37.10 | 47.00 | 52.90 | 47.47 | a | 42.87 | 38.19 | 24.70 | 21.97 | 34.00 | ||||||||||||
1951 | 17.42 | 20.43 | 22.39 | 29.47 | 37.81 | 44.63 | 53.58 | 52.00 | 43.73 | 34.90 | 25.30 | 19.94 | 33.47 | |||||||||||||
1952 | 22.13 | 18.86 | 21.68 | 30.23 | 39.94 | 49.00 | 51.06 | 52.10 | 42.27 | 32.32 | 19.57 | 16.32 | 32.96 | |||||||||||||
1953 | 25.90 | 17.00 | 27.94 | 29.43 | 35.26 | 49.77 | 52.61 | 50.42 | 42.43 | 33.26 | 26.63 | 17.39 | 34.00 | |||||||||||||
1954 | 19.58 | 23.32 | 22.77 | 33.27 | 40.87 | 46.27 | 53.06 | 51.03 | a | 46.93 | 36.70 | a | 25.33 | 17.26 | 34.70 | |||||||||||
1955 | 16.48 | 14.86 | 24.29 | 29.10 | 37.26 | 43.67 | 50.45 | 52.19 | 45.00 | 36.13 | 24.97 | a | 21.97 | 33.03 | ||||||||||||
1956 | 22.29 | 15.31 | 22.43 | a | 26.80 | 39.84 | 49.93 | 50.13 | 49.19 | 43.07 | 34.52 | 18.40 | 15.00 | 32.24 | ||||||||||||
1957 | 22.77 | a | 26.64 | 26.10 | 27.86 | a | 35.90 | 44.77 | 52.48 | 51.35 | 40.07 | 35.61 | 23.20 | 19.87 | 33.89 | |||||||||||
1958 | 15.06 | 23.57 | 21.84 | 28.23 | 39.45 | 49.20 | 52.06 | 52.32 | 46.53 | 35.32 | 25.57 | 22.32 | 34.29 | |||||||||||||
1959 | 20.00 | 20.04 | 21.58 | 31.97 | 38.35 | 48.83 | 50.35 | 52.00 | 44.00 | 33.94 | 23.27 | 20.81 | 33.76 | |||||||||||||
1960 | 11.48 | 15.90 | 27.19 | 31.60 | 36.94 | 49.40 | 50.77 | 50.29 | 44.53 | 35.00 | 26.57 | 15.06 | 32.89 | |||||||||||||
1961 | 14.61 | 21.86 | 26.26 | 31.07 | 38.81 | 45.43 | 50.29 | 51.42 | 42.31 | a | 32.58 | 24.50 | 20.26 | 33.28 | ||||||||||||
1962 | 18.03 | 25.68 | 21.19 | 32.23 | 37.68 | 43.67 | 52.65 | 50.19 | 47.70 | 36.81 | 28.34 | a | 21.45 | 34.64 | ||||||||||||
1963 | 16.39 | 22.21 | 25.10 | 33.62 | a | 41.45 | b | 46.05 | h | 53.97 | 52.19 | 46.57 | 38.84 | 26.50 | 17.42 | 34.02 | a | |||||||||
1964 | 11.65 | 11.72 | 22.35 | 29.87 | 38.81 | 46.27 | 53.42 | 50.65 | 46.57 | 34.29 | 25.80 | 20.74 | 32.68 | |||||||||||||
1965 | 22.16 | 17.29 | 21.07 | b | 31.03 | 37.94 | 43.30 | 53.58 | 49.29 | 44.03 | 34.94 | 28.60 | 22.16 | 33.78 | ||||||||||||
1966 | 14.74 | 17.43 | 25.00 | 31.27 | 39.61 | 45.90 | a | 54.87 | 50.90 | 44.63 | 31.90 | 27.77 | 19.29 | 33.61 | ||||||||||||
1967 | 17.29 | 21.89 | 28.03 | 31.33 | 35.52 | 46.00 | 54.35 | 49.42 | 43.47 | 34.16 | 27.13 | 15.42 | 33.67 | |||||||||||||
1968 | 17.23 | 23.41 | 24.03 | 29.00 | 37.60 | a | 46.30 | 50.90 | 49.03 | 40.50 | 34.84 | 25.07 | 16.26 | 32.85 | ||||||||||||
1969 | 24.97 | 19.79 | 18.00 | 31.63 | 39.77 | 45.17 | 54.07 | a | 52.90 | 46.07 | 33.71 | 23.67 | 22.13 | 34.32 | ||||||||||||
1970 | 17.61 | 22.25 | 22.13 | 26.43 | 39.32 | 43.73 | 53.13 | 51.84 | 43.10 | 31.90 | ----- | z | ----- | z | 35.15 | b | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 16.83 | 19.56 | 23.22 | 29.98 | 37.73 | 45.55 | 51.03 | 49.93 | 43.57 | 33.61 | 23.61 | 18.42 | 32.74 | |||||||||||||
S.D. | 4.30 | 4.00 | 2.70 | 2.52 | 2.17 | 2.49 | 1.99 | 1.71 | 2.32 | 2.25 | 3.13 | 3.80 | 1.42 | |||||||||||||
SKEW | 0.13 | -0.61 | 0.14 | -0.68 | -0.46 | -0.49 | -0.05 | -0.21 | -0.10 | -0.21 | -0.29 | -0.67 | -0.87 | |||||||||||||
MAX | 25.90 | 26.64 | 28.32 | 33.62 | 41.70 | 49.93 | 54.87 | 52.90 | 49.03 | 38.84 | 30.70 | 23.77 | 34.99 | |||||||||||||
MIN | 9.77 | 8.64 | 18.00 | 22.70 | 31.65 | 38.50 | 46.94 | 46.32 | 38.53 | 28.10 | 16.10 | 8.42 | 28.50 | |||||||||||||
YRS | 50 | 50 | 50 | 50 | 51 | 50 | 50 | 51 | 51 | 51 | 50 | 50 | 47 |