YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.67 | s | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | 30.00 | a | ----- | z | 36.34 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.15 | d | 34.00 | 22.57 | c | 33.41 | g | |
1912 | 31.59 | b | 29.93 | b | 33.29 | c | 39.83 | a | 50.70 | a | 52.33 | 55.52 | 55.77 | 45.67 | 36.32 | 25.57 | 16.58 | 39.42 | ||||||||
1913 | 18.37 | a | 23.50 | 28.03 | 32.90 | 43.74 | 51.27 | 54.32 | 54.90 | 44.80 | 35.65 | 33.07 | 17.87 | 36.53 | ||||||||||||
1914 | 25.52 | 24.36 | 25.52 | 35.41 | a | 44.03 | 53.30 | 55.97 | 53.10 | 49.40 | 37.19 | 29.93 | 20.10 | b | 37.82 | |||||||||||
1915 | 19.77 | 25.68 | 23.80 | a | 37.70 | 40.29 | 50.63 | 57.19 | 52.32 | 49.60 | 35.71 | 26.97 | 24.74 | 37.03 | ||||||||||||
1916 | 26.26 | 30.46 | a | 38.39 | 38.60 | 42.65 | 53.20 | 56.26 | 56.23 | 52.90 | 44.77 | 28.60 | 21.52 | 40.82 | ||||||||||||
1917 | 24.43 | a | 25.61 | 26.16 | 33.60 | 38.65 | 53.17 | 60.40 | a | 55.61 | 48.37 | 34.61 | 29.93 | 28.16 | 38.23 | |||||||||||
1918 | 16.74 | 26.61 | 33.81 | 36.80 | 44.13 | 54.27 | 57.19 | 55.87 | 49.07 | a | 41.65 | 26.13 | 19.48 | 38.48 | ||||||||||||
1919 | 17.13 | 27.43 | 27.35 | h | 36.57 | p | 45.74 | 47.40 | 56.26 | 55.03 | 51.77 | 43.03 | 27.83 | 28.61 | 40.02 | b | ||||||||||
1920 | 23.35 | 29.10 | 29.13 | a | 32.37 | 43.94 | 53.17 | 55.52 | 55.74 | 51.23 | 38.65 | 29.50 | 24.32 | 38.83 | ||||||||||||
1921 | 27.90 | 26.30 | a | 34.71 | 34.57 | 45.29 | 49.37 | 57.48 | 56.06 | 52.93 | 39.42 | 28.27 | 30.23 | 40.21 | ||||||||||||
1922 | 19.58 | 27.00 | a | 28.29 | 37.03 | 45.03 | b | 50.00 | 51.32 | 55.10 | 55.93 | 38.74 | 27.87 | 29.29 | 38.77 | |||||||||||
1923 | 28.16 | 24.21 | 27.16 | 38.20 | 44.45 | 52.33 | 56.74 | 55.03 | a | 47.60 | 37.03 | 28.60 | 23.45 | 38.58 | ||||||||||||
1924 | 20.48 | 24.17 | 25.16 | 37.33 | 43.10 | 53.13 | 55.65 | 54.19 | 46.33 | 38.94 | 30.77 | 18.35 | 37.30 | |||||||||||||
1925 | 17.61 | 27.21 | 29.61 | 38.83 | 45.65 | 51.60 | 55.23 | 53.77 | 48.63 | 39.03 | 27.50 | 19.55 | 37.85 | |||||||||||||
1926 | 17.68 | 28.54 | 27.06 | 34.47 | 42.39 | 48.17 | 52.26 | 52.10 | 52.67 | 41.06 | 29.67 | 22.06 | 37.34 | |||||||||||||
1927 | 27.77 | 28.32 | 27.52 | 36.67 | 42.19 | 49.77 | 54.55 | 54.77 | 49.10 | 36.97 | 35.73 | 20.52 | 38.66 | |||||||||||||
1928 | 23.55 | 23.31 | 29.19 | 34.00 | ----- | z | 46.48 | a | 48.45 | 51.84 | 41.43 | 37.68 | 29.13 | 21.52 | 35.14 | a | ||||||||||
1929 | 23.74 | 19.61 | 30.45 | 37.17 | 46.26 | 48.27 | 59.06 | 55.90 | 50.40 | 38.71 | 24.55 | a | 22.74 | 38.07 | ||||||||||||
1930 | 15.71 | 29.79 | 25.74 | 35.10 | 37.35 | 51.37 | 54.58 | 52.03 | 44.57 | 40.42 | 28.10 | 17.55 | 36.03 | |||||||||||||
1931 | 18.48 | 25.96 | 29.03 | 39.23 | 43.03 | 56.67 | 58.90 | 56.23 | 58.10 | 45.13 | 32.47 | 22.65 | 40.49 | |||||||||||||
1932 | 22.14 | b | 30.31 | 28.58 | 36.17 | 44.53 | a | 49.23 | 53.74 | 53.61 | 44.63 | 42.58 | 31.87 | 19.29 | 38.06 | |||||||||||
1933 | 23.26 | 18.93 | 29.97 | a | 31.90 | 39.57 | a | 48.43 | 53.90 | a | 49.23 | a | 49.93 | 43.35 | 32.30 | 29.06 | 37.49 | |||||||||
1934 | 21.07 | a | 33.11 | 32.94 | 40.47 | 51.77 | 55.70 | 61.06 | 57.97 | 47.37 | 43.10 | 33.73 | 24.48 | 41.90 | ||||||||||||
1935 | 26.42 | 22.82 | 30.52 | 37.27 | 39.45 | 45.77 | 48.77 | 54.10 | 50.97 | a | 46.90 | a | 36.34 | a | 22.97 | a | 38.52 | |||||||||
1936 | 26.00 | 26.76 | 36.55 | 43.72 | a | 52.16 | 52.60 | 56.16 | 57.94 | 48.23 | 38.65 | 29.93 | a | 26.71 | 41.28 | |||||||||||
1937 | 20.90 | b | 25.79 | 28.65 | 36.83 | 48.20 | a | 56.00 | 60.48 | b | 61.65 | 54.33 | 39.00 | 29.20 | 22.90 | 40.33 | ||||||||||
1938 | 24.90 | 29.86 | 31.97 | 38.40 | 46.61 | 59.20 | 50.13 | 51.58 | 47.07 | 37.23 | 23.73 | 25.61 | 38.86 | |||||||||||||
1939 | 22.29 | 17.61 | 31.03 | 35.90 | 43.26 | 50.87 | 54.52 | 52.52 | 49.10 | 37.84 | 24.23 | 25.42 | 37.05 | |||||||||||||
1940 | 20.39 | 23.00 | 30.48 | 34.93 | 44.19 | 50.33 | 54.68 | 53.16 | 49.00 | 38.48 | 26.83 | 26.39 | 37.66 | |||||||||||||
1941 | 25.29 | 26.54 | 26.74 | 33.67 | 44.97 | a | 49.00 | 53.42 | 54.58 | 48.30 | 39.42 | 28.37 | 24.83 | a | 37.93 | |||||||||||
1942 | 19.94 | 19.44 | a | 26.48 | 38.20 | 42.06 | 48.07 | 59.40 | a | 53.97 | 46.67 | 37.06 | 24.83 | 27.29 | 36.95 | |||||||||||
1943 | 23.29 | 25.82 | 27.71 | 38.07 | 46.06 | 51.73 | 56.00 | 52.52 | 46.47 | 38.29 | 25.47 | 16.19 | 37.30 | |||||||||||||
1944 | 18.50 | a | 23.97 | 26.13 | 33.57 | 40.45 | 50.03 | 54.16 | 55.84 | 49.17 | g | 39.35 | 28.77 | 20.88 | f | 37.08 | b | |||||||||
1945 | 24.50 | a | 26.43 | 29.94 | 31.67 | 43.55 | 50.37 | 48.30 | a | 49.10 | 48.37 | 39.14 | c | 36.66 | a | 23.42 | 37.62 | |||||||||
1946 | 13.03 | 18.07 | a | 28.52 | 38.70 | 41.10 | 52.17 | 53.68 | 55.13 | 51.77 | 40.16 | 28.77 | 26.54 | g | 38.28 | a | ||||||||||
1947 | 19.74 | 23.68 | 23.73 | a | 31.52 | a | 43.46 | c | 49.10 | 54.71 | 56.65 | 53.43 | 38.45 | 27.23 | 17.97 | 36.64 | ||||||||||
1948 | 16.68 | 21.89 | a | 21.55 | 38.57 | 43.90 | a | 48.73 | 54.03 | 53.61 | 46.87 | 36.27 | a | 19.97 | a | 24.97 | a | 35.59 | ||||||||
1949 | 12.42 | 22.14 | 25.16 | 33.29 | b | 41.39 | 48.30 | 54.42 | 48.68 | 51.13 | ----- | z | ----- | z | 23.26 | 36.02 | b | |||||||||
1950 | 29.61 | 34.04 | 32.55 | 38.90 | 43.84 | 56.07 | a | 58.19 | 56.19 | 50.30 | 48.81 | ----- | z | ----- | z | 44.85 | b | |||||||||
1951 | 17.45 | 23.60 | w | 30.29 | 31.67 | 41.90 | a | 49.53 | 58.19 | 55.77 | 48.20 | 37.94 | 26.87 | 25.71 | 38.50 | a | ||||||||||
1952 | 26.42 | 24.66 | 25.71 | 33.37 | 42.97 | 53.93 | 54.13 | a | 55.00 | 45.40 | 36.00 | 23.70 | 21.68 | 36.91 | ||||||||||||
1953 | 28.39 | 22.14 | 31.10 | a | 34.10 | 39.68 | 52.20 | 55.16 | 54.29 | 48.17 | 36.42 | 30.03 | a | 17.29 | 37.41 | |||||||||||
1954 | 23.42 | 24.75 | 25.94 | 39.27 | 43.32 | 50.77 | 56.32 | 53.71 | 51.30 | 40.84 | 28.87 | 20.06 | 38.21 | |||||||||||||
1955 | 18.71 | 19.61 | 29.74 | 36.10 | 42.48 | 47.73 | 53.77 | 53.55 | 48.50 | 40.06 | 28.37 | 24.87 | 36.96 | |||||||||||||
1956 | 23.81 | 13.66 | 26.30 | a | 30.30 | 41.65 | 53.07 | 54.06 | 52.32 | 48.77 | 38.13 | 22.57 | 18.71 | 35.28 | ||||||||||||
1957 | 26.77 | 32.00 | 28.19 | 31.90 | a | 41.42 | 51.52 | a | 55.20 | a | 53.63 | a | 42.47 | 37.71 | 24.50 | 22.29 | 37.30 | |||||||||
1958 | 16.06 | 24.93 | 25.50 | a | 30.93 | 43.52 | 52.10 | 56.13 | 54.42 | 48.50 | 36.97 | a | 27.63 | 20.32 | 36.42 | |||||||||||
1959 | 21.23 | 22.32 | 27.29 | 34.55 | a | 46.65 | 52.87 | 52.97 | 53.58 | 45.13 | 35.90 | a | 22.93 | c | 18.04 | d | 36.12 | |||||||||
1960 | 15.19 | 18.04 | a | 25.97 | 34.03 | 40.97 | 53.04 | e | 54.00 | a | 54.77 | 46.71 | b | 34.04 | f | 27.59 | c | 16.03 | 35.12 | a | ||||||
1961 | 16.52 | 22.82 | 28.03 | 34.00 | 45.26 | 49.27 | 49.84 | 49.81 | d | 44.77 | d | 37.74 | 24.03 | 21.45 | 35.30 | |||||||||||
1962 | 15.71 | 26.04 | 21.14 | c | 34.57 | 41.30 | a | 47.90 | 51.00 | b | 49.66 | b | 46.84 | e | 36.81 | 22.71 | b | 18.03 | 34.31 | |||||||
1963 | 8.97 | 20.68 | c | 22.67 | d | 34.43 | 42.17 | b | 50.70 | 56.16 | 54.19 | 48.20 | 37.48 | 25.33 | 14.39 | 34.61 | ||||||||||
1964 | 10.55 | 11.66 | 23.65 | 31.13 | 40.42 | 48.97 | 55.97 | 53.81 | 48.86 | a | 36.74 | 26.07 | 20.39 | 34.02 | ||||||||||||
1965 | 21.45 | 19.54 | 20.35 | 35.77 | 39.93 | a | 45.40 | 53.84 | 53.10 | ----- | z | 34.87 | 32.50 | 24.65 | 34.67 | a | ||||||||||
1966 | 16.32 | 20.46 | 27.61 | 33.57 | 40.77 | 48.97 | a | 54.87 | ----- | z | ----- | z | 36.10 | 30.70 | 17.76 | b | 32.71 | b | ||||||||
1967 | 23.48 | 26.04 | 37.90 | ----- | z | 37.79 | l | 46.17 | a | 56.13 | 51.58 | 45.47 | 36.10 | 27.83 | 17.29 | 36.80 | b | |||||||||
1968 | ----- | z | 23.88 | e | 25.39 | 28.32 | h | 37.71 | 50.27 | 52.84 | 51.58 | 42.97 | 34.71 | 25.33 | 19.27 | a | 36.39 | b | ||||||||
1969 | 29.55 | 21.79 | 19.97 | a | 35.00 | 41.03 | 48.17 | 56.10 | 54.06 | 47.67 | 34.29 | 24.13 | 21.81 | 36.13 | ||||||||||||
1970 | 18.32 | 24.75 | 23.65 | 31.77 | 41.81 | 47.53 | 54.48 | 52.65 | 44.50 | 33.77 | 28.10 | 23.81 | 35.43 | |||||||||||||
1971 | 21.13 | 21.07 | 28.52 | 32.00 | 37.39 | 46.37 | 53.61 | 51.13 | 44.87 | 36.58 | 27.90 | 22.35 | 35.24 | |||||||||||||
1972 | 23.03 | 26.48 | 31.42 | 39.63 | k | 40.40 | a | 51.50 | 55.83 | b | 54.03 | a | 50.48 | a | 41.03 | a | 25.14 | a | 18.03 | a | 37.94 | a | ||||
1973 | 19.90 | a | ----- | z | 27.78 | h | 23.42 | f | 35.48 | d | 48.64 | b | 55.68 | 53.61 | 47.10 | 37.93 | b | 33.17 | a | 23.55 | 39.45 | c | ||||
1974 | 23.71 | 21.37 | a | 31.76 | b | 31.00 | b | 45.21 | c | ----- | z | 54.40 | a | 53.68 | 46.93 | 41.03 | ----- | z | ----- | z | 38.79 | c | ||||
1975 | 25.55 | t | 19.46 | 24.32 | 31.37 | c | 34.97 | 42.80 | 49.87 | 50.79 | g | 41.60 | e | 32.06 | 21.04 | f | 17.19 | j | 34.56 | d | ||||||
1976 | 17.05 | l | 26.08 | e | 22.39 | 31.97 | 39.17 | a | 45.60 | 49.77 | 47.58 | 43.20 | 28.32 | 20.21 | b | 14.77 | 33.55 | a | ||||||||
1977 | 19.52 | 16.18 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.85 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 21.40 | 24.18 | 28.16 | 35.24 | 42.80 | 50.51 | 54.81 | 53.83 | 48.24 | 38.51 | 28.04 | 21.89 | 37.57 | |||||||||||||
S.D. | 4.87 | 4.39 | 4.04 | 2.93 | 3.34 | 3.03 | 2.78 | 2.38 | 3.32 | 3.40 | 3.65 | 3.79 | 1.78 | |||||||||||||
SKEW | -0.17 | -0.30 | 0.37 | 0.37 | 0.37 | 0.24 | -0.27 | -0.06 | 0.37 | 0.42 | 0.23 | 0.15 | 0.29 | |||||||||||||
MAX | 31.59 | 34.04 | 38.39 | 43.72 | 52.16 | 59.20 | 61.06 | 61.65 | 58.10 | 48.81 | 36.66 | 30.23 | 41.90 | |||||||||||||
MIN | 8.97 | 11.66 | 19.97 | 30.30 | 34.97 | 42.80 | 48.30 | 47.58 | 41.43 | 28.32 | 19.97 | 14.39 | 34.02 | |||||||||||||
YRS | 64 | 64 | 64 | 60 | 63 | 64 | 65 | 63 | 62 | 64 | 62 | 61 | 48 |