YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1926 | 14.00 | b | 21.07 | 26.26 | 34.07 | 46.84 | 56.11 | l | 59.33 | a | 58.06 | 55.50 | 40.87 | 24.03 | 19.35 | 36.31 | a | |||||||||
1927 | 20.97 | b | 25.70 | a | 26.32 | 39.43 | 49.35 | 56.70 | 63.03 | 58.94 | 52.62 | a | 36.57 | a | 28.90 | 14.47 | a | 39.42 | ||||||||
1928 | 15.77 | 21.45 | 30.81 | 35.80 | 50.03 | 55.67 | 62.45 | 59.74 | 48.28 | a | 41.55 | 26.23 | 18.97 | a | 38.90 | |||||||||||
1929 | 17.74 | 13.74 | a | 27.16 | 36.70 | 46.74 | 57.30 | 61.87 | 60.32 | 51.00 | 39.90 | 20.60 | 15.23 | 37.36 | ||||||||||||
1930 | 9.47 | a | 23.93 | 22.77 | 41.50 | 45.67 | a | 58.00 | 61.87 | 60.48 | 50.03 | a | 41.63 | a | 28.21 | a | 15.20 | a | 38.23 | |||||||
1931 | 17.94 | 25.50 | 24.13 | a | 37.97 | a | 46.97 | 59.40 | 62.61 | 60.42 | 57.40 | ----- | z | 27.13 | 21.48 | 40.09 | a | |||||||||
1932 | 17.90 | b | 26.11 | a | 20.40 | a | 35.03 | a | 43.26 | 55.04 | b | 64.11 | c | 63.16 | 50.40 | ----- | z | ----- | z | ----- | z | 41.71 | c | |||
1933 | ----- | z | 13.58 | b | 28.03 | 30.83 | 46.77 | r | 59.03 | 64.19 | 62.29 | 56.59 | a | 41.52 | 27.93 | 19.63 | a | 40.36 | b | |||||||
1934 | 18.16 | 18.25 | 23.58 | 36.47 | 52.16 | 59.13 | 66.42 | 65.77 | 50.52 | a | 42.48 | b | 28.97 | 17.80 | a | 39.98 | ||||||||||
1935 | 21.87 | 21.54 | b | 32.90 | b | 36.73 | 45.06 | 57.10 | 62.06 | 62.93 | a | 49.21 | a | 37.04 | c | ----- | z | ----- | z | 42.64 | b | |||||
1936 | ----- | z | ----- | z | 31.45 | 36.87 | 52.71 | 59.20 | 62.84 | 63.00 | a | 54.47 | 38.35 | 25.73 | 23.10 | 44.77 | b | |||||||||
1937 | 13.16 | 19.64 | 26.54 | e | 36.48 | c | 52.32 | 57.53 | 62.30 | a | 63.59 | d | 55.52 | a | 41.58 | 26.62 | d | 21.87 | 39.76 | |||||||
1938 | 20.31 | b | 20.23 | b | 33.91 | h | 37.83 | f | 47.64 | f | 58.25 | f | 61.76 | b | 63.24 | b | 54.14 | b | 43.28 | b | 22.93 | a | 21.76 | b | 38.46 | d |
1939 | 23.11 | c | 20.18 | f | 36.61 | h | 39.45 | h | 48.80 | f | 58.33 | l | 63.09 | i | 59.29 | 56.04 | b | 39.50 | c | 26.78 | c | 22.31 | b | 37.84 | f | |
1940 | 13.62 | g | 24.30 | f | 28.70 | a | 37.66 | a | 47.68 | c | 55.61 | b | 63.81 | 61.29 | 56.68 | b | 42.59 | b | 26.96 | e | 24.19 | 44.52 | b | |||
1941 | 22.52 | b | 26.88 | b | 29.67 | a | 39.79 | a | 51.97 | a | 57.03 | 61.03 | 60.68 | 53.45 | a | 45.13 | 30.10 | 22.94 | 41.77 | |||||||
1942 | 15.66 | b | 14.54 | 26.29 | 40.83 | 46.13 | 59.97 | 62.16 | 62.13 | ----- | z | ----- | z | ----- | z | 24.03 | 39.08 | c | ||||||||
1943 | 21.77 | a | 25.61 | 25.90 | a | 44.10 | 48.65 | 59.47 | 64.06 | 64.61 | 53.53 | 39.66 | b | 27.80 | 20.19 | 41.28 | ||||||||||
1944 | 21.71 | 26.48 | 27.58 | 37.76 | a | 49.60 | a | 59.03 | 63.97 | 62.87 | 54.73 | 43.00 | 32.77 | 22.90 | a | 41.87 | ||||||||||
1945 | 22.77 | 26.68 | 32.33 | a | 34.63 | 54.00 | 58.21 | a | 67.47 | a | 76.25 | c | ----- | z | 37.23 | 29.86 | a | 18.39 | 41.62 | a | ||||||
1946 | 20.48 | 22.50 | 32.13 | 47.60 | 48.35 | 60.23 | 64.06 | 63.81 | 56.83 | 44.42 | 30.13 | 26.16 | 43.06 | |||||||||||||
1947 | 20.84 | 22.04 | 28.52 | 37.63 | 49.68 | 56.40 | 62.68 | 63.10 | 54.65 | d | ----- | z | 25.30 | 23.03 | 40.35 | a | ||||||||||
1948 | 18.07 | a | 19.86 | 25.42 | 41.37 | 48.61 | 59.37 | 63.03 | 60.81 | 54.40 | 40.35 | 27.23 | d | 22.43 | q | 41.68 | a | |||||||||
1949 | 16.13 | 24.75 | 32.42 | 40.10 | 49.81 | 57.73 | 63.50 | a | 60.81 | 53.90 | 40.39 | 33.03 | ----- | z | 42.96 | a | ||||||||||
1950 | 21.48 | 26.75 | 26.26 | 37.27 | 46.73 | a | 57.57 | 60.97 | 58.55 | 54.00 | b | 45.52 | 26.70 | 22.35 | 40.35 | |||||||||||
1951 | 18.69 | b | 23.36 | 28.81 | 37.43 | 49.68 | 57.80 | 64.52 | 62.87 | 51.97 | 41.13 | 23.76 | a | 20.84 | 40.07 | |||||||||||
1952 | 23.77 | 21.59 | 27.48 | 39.17 | 48.16 | 63.00 | 61.97 | 64.06 | 53.10 | 37.77 | 25.70 | 22.23 | 40.67 | |||||||||||||
1953 | 26.39 | 21.59 | a | 35.42 | 35.53 | 45.03 | 62.70 | 61.68 | 60.23 | 54.03 | 45.06 | 33.43 | 21.10 | 41.85 | ||||||||||||
1954 | 24.13 | a | 30.57 | 29.20 | a | 42.90 | 49.29 | 60.40 | 66.45 | 63.16 | 59.43 | 44.61 | 31.30 | 25.32 | 43.90 | |||||||||||
1955 | 21.10 | 18.93 | 26.48 | 39.90 | 50.10 | 56.63 | 63.74 | 61.97 | 55.87 | 42.71 | 26.17 | 24.23 | 40.65 | |||||||||||||
1956 | 23.26 | 20.96 | a | 29.32 | 36.30 | 52.06 | 63.50 | 64.42 | 61.42 | 54.87 | 43.45 | 24.47 | 21.13 | 41.26 | ||||||||||||
1957 | 20.19 | 32.64 | 33.13 | 38.07 | 49.87 | a | 58.27 | 67.65 | 63.97 | 50.40 | 45.94 | 29.97 | a | 25.00 | 42.92 | |||||||||||
1958 | 23.35 | 26.79 | 28.23 | 39.20 | 52.71 | 62.17 | 62.68 | 62.81 | 57.53 | 41.90 | 28.73 | 21.23 | 42.28 | |||||||||||||
1959 | 16.65 | 24.96 | 27.42 | 38.47 | 50.19 | 59.17 | 61.42 | 63.19 | 54.47 | 39.97 | 25.10 | 26.52 | 40.63 | |||||||||||||
1960 | 19.65 | 20.62 | 28.39 | 42.50 | 46.03 | 58.40 | 61.26 | 62.55 | 53.97 | 41.94 | 31.73 | 23.29 | 40.86 | |||||||||||||
1961 | 16.94 | 24.57 | 31.52 | 36.47 | 47.03 | 56.60 | 59.45 | 58.97 | 49.07 | 38.26 | 27.97 | 20.32 | 38.93 | |||||||||||||
1962 | 15.77 | 26.82 | 24.35 | 37.97 | 47.55 | 53.93 | 60.68 | 58.39 | 52.63 | 40.58 | 30.73 | 24.84 | 39.52 | |||||||||||||
1963 | 10.32 | 26.61 | 30.16 | 39.20 | 50.35 | 56.37 | 63.90 | 62.74 | 57.13 | 46.97 | 30.60 | 17.77 | 41.01 | |||||||||||||
1964 | 19.23 | 19.21 | 25.23 | 38.37 | 50.23 | 56.60 | 64.74 | 61.65 | 55.70 | 42.35 | 31.70 | 23.48 | 40.71 | |||||||||||||
1965 | 23.26 | 20.54 | 22.94 | 41.87 | 49.35 | 57.10 | 63.10 | 59.58 | 52.80 | 39.97 | 35.00 | 26.94 | 41.04 | |||||||||||||
1966 | 14.97 | 19.46 | 30.39 | 37.83 | 47.32 | 58.40 | 66.42 | 60.10 | 55.10 | 39.90 | 33.07 | 18.39 | 40.11 | |||||||||||||
1967 | 22.26 | 22.82 | 33.03 | 43.83 | 46.74 | 57.90 | 62.42 | 58.97 | 53.53 | 42.32 | 29.23 | 20.71 | 41.15 | |||||||||||||
1968 | 22.97 | 24.48 | 31.32 | 36.90 | 46.48 | 57.73 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.65 | f | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.37 | 22.83 | 28.25 | 38.50 | 48.76 | 58.28 | 63.12 | 61.97 | 53.89 | 41.51 | 28.27 | 21.54 | 40.70 | |||||||||||||
S.D. | 3.81 | 4.11 | 3.31 | 3.07 | 2.45 | 2.10 | 1.91 | 2.95 | 2.57 | 2.56 | 3.20 | 3.07 | 1.45 | |||||||||||||
SKEW | -0.67 | -0.20 | -0.08 | 0.52 | 0.07 | 0.64 | 0.48 | 2.63 | -0.32 | 0.07 | -0.03 | -0.46 | -0.04 | |||||||||||||
MAX | 26.39 | 32.64 | 35.42 | 47.60 | 54.00 | 63.50 | 67.65 | 76.25 | 59.43 | 46.97 | 35.00 | 26.94 | 43.90 | |||||||||||||
MIN | 9.47 | 13.58 | 20.40 | 30.83 | 43.26 | 53.93 | 59.33 | 58.06 | 48.28 | 36.57 | 20.60 | 14.47 | 37.36 | |||||||||||||
YRS | 40 | 40 | 41 | 41 | 40 | 40 | 41 | 42 | 40 | 38 | 39 | 38 | 28 |