YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1903 | ----- | z | ----- | z | ----- | z | 39.50 | d | 46.84 | 56.93 | 58.61 | 60.10 | a | ----- | z | ----- | z | 27.93 | 24.13 | 44.86 | e | |||||
1904 | 21.93 | a | 21.31 | 28.32 | 41.43 | 46.03 | 53.37 | 61.52 | 61.27 | a | 53.03 | 42.67 | a | 36.03 | a | 26.78 | d | 41.14 | ||||||||
1905 | 24.93 | b | 23.59 | a | 35.87 | a | 40.37 | 45.93 | b | 53.00 | c | 62.71 | 58.35 | 50.83 | 34.48 | ----- | z | 21.75 | g | 43.01 | b | |||||
1906 | 18.13 | 29.22 | a | 29.64 | c | 43.72 | a | 49.24 | j | 48.93 | 67.94 | 59.89 | c | 50.67 | c | 42.00 | h | 29.17 | a | 24.45 | b | 40.18 | b | |||
1907 | 9.00 | 24.93 | 30.29 | 36.14 | b | 48.50 | a | 48.64 | b | 59.45 | 51.97 | 44.00 | 40.65 | n | 30.67 | ----- | z | 38.36 | b | |||||||
1908 | ----- | z | ----- | z | ----- | z | ----- | z | 45.55 | 55.40 | 63.77 | 61.81 | 50.23 | ----- | z | 36.03 | a | 22.10 | 47.84 | e | ||||||
1909 | 10.03 | b | 28.07 | a | 33.55 | 36.10 | 44.23 | 54.00 | f | 57.74 | 57.00 | e | 52.00 | g | ----- | z | ----- | z | 18.52 | h | 38.10 | e | ||||
1910 | 18.39 | 16.44 | a | 29.48 | 34.93 | b | 49.18 | c | 54.44 | c | 60.41 | b | 61.77 | a | 48.46 | d | 44.45 | b | 29.10 | a | 27.83 | b | 39.57 | |||
1911 | 18.00 | d | 19.12 | b | 31.83 | b | 34.07 | 40.70 | h | 53.17 | g | 65.69 | e | 60.95 | k | 46.62 | i | 37.04 | d | 24.92 | d | 22.03 | a | 31.59 | d | |
1912 | 17.52 | d | 31.04 | a | 27.69 | b | 35.12 | e | 47.88 | e | 47.45 | j | 60.88 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 31.85 | g |
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 | 57.30 | t | 64.87 | 62.32 | 50.13 | 41.35 | 32.17 | 26.84 | 46.28 | f | ||||||
1921 | 23.65 | 27.26 | a | 33.97 | 37.83 | 48.93 | b | 55.60 | 60.55 | 60.42 | 46.00 | 43.63 | a | 29.41 | a | 23.90 | 40.93 | |||||||||
1922 | 8.55 | 17.11 | 29.10 | 38.03 | a | 46.48 | 60.93 | a | 65.32 | 62.16 | 53.47 | 45.90 | 31.90 | 15.38 | b | 39.53 | ||||||||||
1923 | 26.52 | 18.25 | 31.94 | 41.30 | 48.29 | 54.23 | 63.52 | 63.68 | 55.33 | 44.58 | 32.40 | 23.26 | 41.94 | |||||||||||||
1924 | 14.68 | 33.07 | 33.03 | 39.07 | 54.13 | 56.77 | 61.52 | 61.39 | 53.20 | 41.65 | 30.86 | b | 16.52 | 41.32 | ||||||||||||
1925 | 20.97 | 32.41 | a | 34.23 | a | 43.63 | 50.67 | a | 57.77 | 66.35 | 59.48 | 51.13 | ----- | z | 29.63 | 31.27 | a | 43.41 | a | |||||||
1926 | 26.43 | c | 32.22 | a | 36.32 | 45.17 | 45.19 | 56.30 | 65.00 | 60.71 | 45.70 | 42.03 | 34.04 | c | 21.78 | d | 42.57 | |||||||||
1927 | 20.68 | c | 27.74 | a | 32.68 | 36.67 | 44.94 | 57.20 | 63.61 | 60.97 | 49.57 | b | 39.55 | 30.14 | a | 16.50 | a | 40.02 | ||||||||
1928 | 21.07 | a | 26.65 | c | 33.06 | 35.70 | 51.26 | 55.47 | 64.26 | 57.97 | 51.87 | 40.90 | 30.38 | a | 21.61 | 40.85 | ||||||||||
1929 | 9.77 | 9.64 | 32.52 | 34.97 | 49.10 | 53.17 | 60.03 | 63.00 | 51.24 | a | 43.00 | a | 25.87 | 25.81 | 38.18 | |||||||||||
1930 | 6.84 | 28.54 | 33.61 | 43.83 | 49.04 | c | 52.80 | 63.32 | 63.10 | 52.37 | 38.55 | 29.37 | 26.06 | 40.62 | ||||||||||||
1931 | 27.68 | 28.29 | 35.16 | 40.63 | 51.71 | 55.00 | 62.90 | 60.03 | 49.30 | 39.87 | 27.90 | 18.42 | 41.41 | |||||||||||||
1932 | 16.03 | a | 19.59 | 34.45 | 42.50 | 47.39 | 58.30 | 57.19 | 58.13 | 53.77 | 40.57 | a | 32.73 | 17.73 | a | 39.87 | ||||||||||
1933 | 20.90 | 12.14 | 33.48 | 40.10 | 42.77 | 54.87 | 61.13 | 61.06 | 47.93 | 42.10 | 33.57 | 28.58 | 39.89 | |||||||||||||
1934 | 28.83 | a | 33.75 | 37.16 | 47.43 | 51.68 | 57.76 | a | 59.58 | 62.26 | 47.70 | 44.65 | 36.03 | 26.61 | 44.45 | |||||||||||
1935 | 19.87 | a | 28.14 | 29.48 | 36.33 | 47.39 | 53.79 | a | 60.26 | 58.29 | 54.13 | 38.00 | 27.14 | a | 26.23 | 39.92 | ||||||||||
1936 | 25.52 | 9.76 | 31.16 | 43.67 | 53.00 | 57.55 | a | 61.26 | 61.03 | 50.23 | 44.10 | 25.52 | a | 24.45 | 40.60 | |||||||||||
1937 | 4.48 | 18.75 | 36.87 | 39.53 | 48.32 | 55.47 | 63.10 | 56.55 | 55.34 | a | 45.61 | 34.57 | 28.94 | 40.63 | ||||||||||||
1938 | 27.61 | 28.89 | 33.97 | 43.17 | 49.48 | 57.90 | 66.39 | 59.77 | 59.20 | 44.90 | 29.17 | 25.58 | 43.84 | |||||||||||||
1939 | 27.97 | 23.07 | 35.55 | 43.30 | 50.39 | 54.33 | 63.43 | a | 64.81 | 52.47 | 41.45 | 31.73 | 31.87 | a | 43.36 | |||||||||||
1940 | 27.00 | 30.03 | 36.90 | 43.57 | 52.10 | 59.20 | 63.06 | 62.19 | 57.00 | 45.97 | a | 26.60 | 28.93 | a | 44.38 | |||||||||||
1941 | 28.45 | 32.96 | 39.06 | 44.43 | 47.45 | 54.40 | 67.35 | 61.06 | 49.40 | 41.42 | 34.00 | 28.73 | a | 44.06 | ||||||||||||
1942 | 17.52 | 28.68 | 33.00 | 42.53 | 46.90 | 53.60 | 62.65 | 64.19 | 55.83 | 42.71 | 29.77 | 24.00 | 41.78 | |||||||||||||
1943 | 14.77 | 28.29 | 30.35 | 43.43 | 45.35 | 52.63 | 62.74 | 59.32 | 56.20 | 43.90 | 35.13 | 25.71 | 41.49 | |||||||||||||
1944 | 20.81 | 28.14 | 30.71 | 42.07 | 50.94 | 56.17 | a | 65.26 | 60.84 | 55.33 | 49.42 | 33.88 | d | 23.29 | 43.07 | |||||||||||
1945 | 27.65 | 30.50 | 32.13 | 38.00 | 50.39 | 55.30 | 64.00 | 63.52 | 52.47 | 45.42 | 29.73 | 26.97 | 43.01 | |||||||||||||
1946 | 25.39 | 27.96 | 34.97 | 41.83 | 51.70 | a | 55.10 | 63.06 | 63.35 | 52.57 | 39.40 | a | 26.87 | 26.10 | 42.36 | |||||||||||
1947 | 19.55 | 28.96 | 37.77 | 42.37 | 56.79 | l | 56.19 | c | 62.61 | 60.00 | c | 54.07 | b | 44.78 | d | 33.33 | 26.74 | 42.40 | a | |||||||
1948 | 24.48 | 22.83 | 32.03 | 36.59 | a | 48.17 | a | 56.87 | 59.53 | a | 58.39 | 51.23 | 39.71 | j | 29.80 | 13.58 | 39.41 | a | ||||||||
1949 | 2.81 | 18.68 | 35.19 | 42.10 | 53.39 | 55.10 | 60.32 | 61.71 | 55.40 | 39.16 | 37.80 | 25.06 | 40.56 | |||||||||||||
1950 | 2.45 | 23.67 | a | 31.26 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.13 | i | ||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.61 | 56.53 | 43.00 | 31.70 | 20.00 | 42.97 | g | |||||
1952 | 16.00 | 27.03 | 33.03 | 41.90 | 50.00 | 56.27 | 62.84 | 60.58 | 55.50 | 48.29 | 28.50 | 28.74 | 42.39 | |||||||||||||
1953 | 31.65 | 31.79 | 34.73 | a | 40.43 | 47.13 | a | 52.47 | 61.90 | 59.71 | 54.23 | 44.13 | 36.11 | b | 29.97 | 43.69 | ||||||||||
1954 | 20.48 | 29.86 | 31.10 | 36.87 | 50.19 | 52.30 | 59.29 | 58.58 | 52.17 | 39.84 | 37.87 | 25.81 | 41.20 | |||||||||||||
1955 | 23.23 | 22.89 | 27.19 | 34.90 | 44.23 | 57.17 | 58.94 | 60.23 | 52.73 | 40.71 | 22.50 | 19.52 | 38.69 | |||||||||||||
1956 | 24.55 | 16.24 | 30.65 | 44.90 | 53.61 | 53.83 | 65.00 | 61.84 | 51.67 | 41.68 | 29.87 | 25.90 | 41.64 | |||||||||||||
1957 | 10.94 | 22.79 | 35.03 | 43.80 | 54.06 | 57.23 | 58.61 | 56.55 | 53.40 | 43.00 | a | 31.17 | 29.45 | 41.34 | ||||||||||||
1958 | 30.52 | 37.25 | 33.94 | 40.30 | 55.23 | 59.23 | 65.32 | 63.71 | 51.67 | 43.13 | 30.47 | 28.45 | 44.93 | |||||||||||||
1959 | 25.10 | 26.71 | 34.00 | 41.60 | 45.65 | 55.60 | 64.65 | 57.81 | 50.93 | 41.48 | 26.77 | 27.03 | 41.44 | |||||||||||||
1960 | 18.00 | 28.41 | 33.45 | 40.40 | 45.16 | 55.67 | 65.26 | 56.94 | 53.48 | e | 41.29 | c | 31.07 | 23.94 | 41.09 | |||||||||||
1961 | 27.58 | 32.79 | ----- | z | ----- | z | 47.03 | 59.62 | a | 64.23 | 65.23 | ----- | z | ----- | z | ----- | z | 22.39 | 45.55 | e | ||||||
1962 | 19.80 | a | 28.07 | 29.77 | 38.89 | k | 41.26 | 49.87 | 55.32 | 48.77 | 51.77 | 41.06 | 32.37 | 29.48 | 38.87 | a | ||||||||||
1963 | 15.10 | 28.43 | 34.06 | 37.87 | 46.45 | 54.43 | 55.94 | 59.10 | 54.33 | 42.16 | 32.53 | 25.35 | 40.48 | |||||||||||||
1964 | 24.58 | 26.59 | 31.06 | 35.90 | 45.00 | 52.69 | a | 58.97 | 54.48 | 47.83 | 40.06 | 30.83 | 17.87 | 38.82 | ||||||||||||
1965 | 23.52 | 28.18 | 30.45 | 41.00 | 45.39 | 54.73 | 60.65 | 61.29 | 46.53 | 41.13 | 35.00 | 24.77 | 41.05 | |||||||||||||
1966 | 22.03 | 28.43 | 31.45 | 39.57 | 47.58 | 51.10 | 57.84 | 59.10 | 53.57 | 38.35 | 34.33 | 29.65 | 41.08 | |||||||||||||
1967 | 28.32 | 30.79 | 30.81 | 34.47 | 44.16 | 57.17 | 59.94 | 62.55 | 55.13 | 40.32 | 31.37 | 22.26 | 41.44 | |||||||||||||
1968 | 23.26 | 31.45 | 35.87 | 37.90 | 48.32 | 55.97 | 62.74 | 56.77 | 51.23 | 37.77 | 32.83 | 21.13 | 41.27 | |||||||||||||
1969 | 10.74 | 22.89 | 32.97 | 38.53 | 48.58 | 58.90 | 57.97 | 54.61 | 51.50 | 37.20 | a | 29.57 | 27.17 | b | 39.22 | |||||||||||
1970 | 20.39 | 30.04 | 32.16 | 34.07 | 44.77 | 56.87 | 59.10 | 57.13 | 44.55 | a | 36.68 | 28.23 | 16.90 | a | 38.41 | |||||||||||
1971 | 20.70 | a | 27.29 | 26.76 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 23.99 | j | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.06 | 25.99 | 32.85 | 39.92 | 48.26 | 55.30 | 62.01 | 60.04 | 51.92 | 41.85 | 31.04 | 24.46 | 41.32 | |||||||||||||
S.D. | 7.14 | 5.95 | 2.61 | 3.39 | 3.12 | 2.55 | 2.90 | 3.07 | 3.22 | 2.97 | 3.31 | 4.25 | 1.65 | |||||||||||||
SKEW | -0.74 | -0.95 | 0.05 | -0.08 | 0.24 | -0.43 | -0.18 | -1.14 | -0.42 | 0.05 | -0.07 | -0.65 | 0.28 | |||||||||||||
MAX | 31.65 | 37.25 | 39.06 | 47.43 | 55.23 | 60.93 | 67.94 | 65.23 | 59.20 | 49.42 | 37.87 | 31.87 | 44.93 | |||||||||||||
MIN | 2.45 | 9.64 | 27.19 | 34.07 | 41.26 | 48.64 | 55.32 | 48.77 | 44.00 | 34.48 | 22.50 | 13.58 | 38.18 | |||||||||||||
YRS | 58 | 58 | 56 | 55 | 55 | 55 | 58 | 58 | 55 | 51 | 56 | 56 | 45 |