YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | 47.57 | x | 49.24 | e | 54.28 | b | 52.86 | c | 45.30 | c | 33.41 | b | 24.80 | ----- | z | 43.31 | f | |
1921 | 19.00 | d | 22.07 | a | 28.83 | a | 30.67 | 41.30 | a | 50.27 | 56.45 | 54.61 | 48.52 | a | 38.16 | 25.40 | 22.83 | a | 36.51 | |||||||
1922 | 15.03 | 21.36 | 24.77 | 30.93 | 44.07 | c | 51.80 | 59.00 | 56.50 | a | 50.50 | 35.84 | 23.37 | 24.62 | b | 36.48 | ||||||||||
1923 | 21.19 | 20.32 | 25.55 | 34.67 | c | 43.26 | 48.80 | 57.97 | 54.81 | 43.97 | 32.94 | 25.57 | b | 17.94 | 35.58 | |||||||||||
1924 | 13.81 | 20.52 | d | 23.00 | a | 31.41 | a | 41.48 | b | 50.76 | a | 55.64 | c | 53.55 | 42.00 | 32.40 | a | 22.53 | 14.60 | a | 33.48 | |||||
1925 | 11.29 | 19.29 | 26.63 | a | 34.07 | 45.23 | 50.87 | 56.52 | 52.03 | 48.37 | 36.03 | 21.37 | 14.13 | 34.65 | ||||||||||||
1926 | 11.29 | 21.57 | 25.29 | 33.23 | 39.19 | 46.73 | 49.84 | 49.42 | 45.90 | 33.87 | 22.57 | 12.90 | 32.65 | |||||||||||||
1927 | 19.87 | 26.07 | 25.10 | 32.93 | 39.90 | 46.87 | 53.74 | 49.68 | 44.53 | 31.52 | 27.73 | 11.71 | 34.14 | |||||||||||||
1928 | 14.16 | 18.62 | 26.42 | 29.79 | a | 40.39 | 46.67 | f | 52.93 | a | 48.94 | 39.77 | 32.29 | 18.73 | 11.32 | 30.31 | a | |||||||||
1929 | 15.52 | 17.43 | 27.39 | 30.57 | 41.39 | 48.83 | 56.29 | 51.74 | 45.43 | 34.84 | 21.30 | 18.81 | 34.13 | |||||||||||||
1930 | 15.13 | 22.71 | 24.52 | 36.87 | 36.06 | 49.80 | 54.45 | 52.71 | 45.03 | 31.84 | 21.20 | 11.19 | 33.46 | |||||||||||||
1931 | 12.97 | 26.79 | 26.63 | a | 36.93 | 41.55 | 52.09 | g | 57.55 | 54.42 | 51.17 | 39.10 | 23.93 | 16.00 | a | 35.18 | a | |||||||||
1932 | 12.61 | 24.97 | 27.61 | 33.80 | 41.06 | 49.57 | 57.19 | 55.13 | 46.10 | 36.61 | 26.20 | 12.55 | 35.28 | |||||||||||||
1933 | 15.45 | 15.61 | 28.42 | 29.70 | 38.97 | 53.30 | 57.42 | 54.32 | 50.83 | 41.26 | 26.07 | 22.87 | 36.18 | |||||||||||||
1934 | 17.52 | 25.54 | 31.42 | 37.90 | 47.00 | 50.90 | 58.74 | 58.58 | 48.10 | 37.61 | 28.57 | 20.65 | 38.54 | |||||||||||||
1935 | 22.16 | 22.64 | 26.84 | 36.03 | 40.58 | 50.70 | 56.81 | 56.48 | 47.30 | 37.29 | 24.37 | 21.06 | 36.86 | |||||||||||||
1936 | 20.45 | 27.00 | 28.45 | 34.97 | 43.45 | 52.10 | 55.97 | 55.68 | 47.50 | 36.68 | 22.33 | 19.19 | 36.98 | |||||||||||||
1937 | 9.45 | 21.68 | 26.52 | 34.10 | 45.77 | 53.03 | 57.06 | 58.42 | 50.10 | 42.77 | 29.03 | 23.19 | 37.59 | |||||||||||||
1938 | 21.06 | 24.11 | 30.71 | 34.67 | 42.00 | 54.13 | 57.00 | 56.52 | 47.87 | 36.48 | 19.21 | a | 22.39 | 37.18 | ||||||||||||
1939 | 19.61 | 15.54 | 27.71 | 36.47 | 43.10 | 51.64 | b | 56.29 | 53.45 | 51.43 | 32.19 | 23.73 | 21.13 | 36.02 | ||||||||||||
1940 | 20.10 | 23.66 | 27.03 | 34.17 | 43.35 | 51.66 | a | 54.10 | 50.36 | f | 45.82 | b | 34.77 | 24.23 | 24.52 | 34.85 | a | |||||||||
1941 | 22.97 | 25.75 | 27.87 | 32.03 | 44.90 | 47.87 | 54.19 | 54.90 | 45.57 | 37.90 | 24.80 | 21.65 | 36.70 | |||||||||||||
1942 | 20.03 | 16.64 | 22.00 | 33.37 | 40.23 | 50.27 | 55.55 | 55.03 | 45.83 | 38.32 | 27.93 | 25.29 | 35.87 | |||||||||||||
1943 | 21.55 | 23.64 | 29.35 | 36.83 | 43.77 | 51.93 | 57.97 | 57.90 | b | 47.93 | 34.13 | 22.73 | 16.06 | 36.98 | ||||||||||||
1944 | 16.03 | 21.38 | 26.03 | 32.90 | 42.06 | 49.60 | 48.37 | a | ----- | z | 48.37 | 39.19 | 26.30 | 19.13 | 33.58 | a | ||||||||||
1945 | 18.94 | 22.29 | ----- | z | ----- | z | ----- | z | ----- | z | 57.71 | 57.16 | 47.43 | 36.61 | 21.03 | 7.06 | n | 37.31 | e | |||||||
1946 | 15.60 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 15.60 | k |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.63 | 15.32 | 18.48 | j | ||
1948 | 15.20 | a | 20.61 | a | 21.04 | f | 33.65 | d | 41.43 | a | 49.48 | a | 55.47 | a | 53.32 | 47.00 | b | 34.79 | b | 20.32 | b | 20.55 | 35.62 | a | ||
1949 | 16.90 | 17.48 | a | 24.97 | 33.10 | 40.16 | 49.63 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 14.04 | d | 28.04 | e | |||||
1950 | 16.42 | 19.81 | l | 25.33 | m | ----- | z | 36.48 | 47.82 | b | 55.04 | f | ----- | z | ----- | z | ----- | z | 22.11 | c | 19.65 | 28.50 | g | |||
1951 | 15.13 | 18.96 | 24.10 | 34.14 | a | 41.71 | 48.83 | 59.32 | 56.84 | 45.20 | 32.35 | 20.40 | 17.55 | 34.54 | ||||||||||||
1952 | 20.10 | 17.86 | 22.23 | 33.10 | 44.35 | 51.63 | 55.06 | 55.77 | 44.50 | 30.58 | 18.87 | 15.97 | a | 34.17 | ||||||||||||
1953 | 20.65 | 16.96 | b | 26.30 | d | 31.76 | a | 36.65 | 51.90 | 56.65 | 51.03 | 40.90 | 30.65 | 20.34 | a | 10.66 | b | 32.87 | ||||||||
1954 | 15.42 | 17.82 | 22.74 | 35.83 | 41.16 | 48.77 | 56.80 | a | 52.94 | 45.07 | 40.71 | j | 16.15 | q | 5.20 | a | 34.17 | b | ||||||||
1955 | 6.71 | 8.46 | 19.57 | c | ----- | z | 42.21 | g | 54.64 | b | 53.90 | 56.61 | ----- | z | ----- | z | 22.33 | x | 23.13 | 31.86 | e | |||||
1956 | 24.59 | b | 18.21 | 26.52 | 33.18 | b | 43.72 | f | ----- | z | ----- | z | 53.21 | q | 48.50 | 36.03 | 17.80 | 14.68 | 27.44 | d | ||||||
1957 | 24.45 | 29.07 | 29.52 | 33.10 | 41.00 | 50.13 | 58.13 | 54.94 | 43.53 | 37.10 | 23.00 | 18.45 | 36.87 | |||||||||||||
1958 | 15.13 | 24.29 | 23.77 | 31.80 | 43.16 | 54.30 | 54.90 | 55.42 | 49.17 | 37.16 | 24.80 | 20.81 | 36.23 | |||||||||||||
1959 | 18.13 | 18.46 | 23.97 | 38.65 | g | 41.77 | 54.33 | 57.00 | 56.39 | 46.67 | 36.23 | 25.90 | 22.68 | 36.50 | a | |||||||||||
1960 | 13.97 | 19.86 | 27.87 | 32.73 | ----- | z | ----- | z | 54.47 | n | 53.74 | 46.23 | 33.48 | 23.40 | 11.84 | 29.24 | c | |||||||||
1961 | 14.42 | 21.39 | 27.48 | 31.20 | 38.58 | 49.07 | 54.77 | 54.00 | 43.27 | 30.77 | 24.87 | 16.74 | 33.88 | |||||||||||||
1962 | 15.84 | 21.61 | 17.26 | 32.63 | 34.94 | 44.60 | 53.81 | 53.71 | 48.43 | 36.58 | 27.10 | 18.10 | 33.72 | |||||||||||||
1963 | 12.68 | 18.79 | 22.94 | 30.50 | 40.90 | 45.10 | 57.10 | 54.87 | 49.20 | 35.84 | 24.07 | 11.90 | 33.66 | |||||||||||||
1964 | 8.10 | 13.62 | 21.52 | 28.67 | 38.94 | 47.07 | 56.77 | 52.77 | 46.93 | a | 32.13 | 21.33 | c | 20.24 | b | 32.34 | ||||||||||
1965 | 19.48 | h | 17.89 | a | 20.26 | h | 27.93 | p | 34.62 | o | 45.14 | i | ----- | z | ----- | z | ----- | z | 35.07 | p | 30.22 | c | 15.79 | b | 21.30 | i |
1966 | 13.57 | a | 27.26 | i | 25.62 | r | 32.62 | d | 42.87 | 48.33 | 57.74 | 53.16 | 43.90 | ----- | z | ----- | z | ----- | z | 41.74 | e | |||||
1967 | 7.42 | e | ----- | z | 33.06 | n | 34.30 | 40.77 | 52.13 | 61.00 | 55.10 | 49.10 | 39.00 | a | 29.10 | 17.40 | a | 38.53 | b | |||||||
1968 | 18.55 | 27.62 | 28.23 | 31.50 | 43.23 | 51.80 | 56.20 | a | 53.81 | 44.50 | 36.58 | 24.67 | 16.19 | 36.07 | ||||||||||||
1969 | 25.84 | 19.79 | 23.06 | 33.95 | k | 43.19 | 48.33 | 58.23 | 57.39 | 48.77 | 35.71 | 22.66 | a | 22.90 | 36.90 | a | ||||||||||
1970 | 16.00 | 23.89 | 26.71 | 28.70 | 41.13 | 49.47 | 57.13 | a | 56.94 | 45.62 | a | 33.30 | a | 26.17 | 18.19 | 35.27 | ||||||||||
1971 | 16.81 | 21.39 | 26.74 | 29.77 | 38.23 | 51.63 | 58.45 | 54.16 | 45.57 | 34.45 | 25.30 | 18.00 | 35.04 | |||||||||||||
1972 | 20.65 | 23.66 | 31.81 | 32.97 | 41.13 | a | 51.63 | 58.10 | 54.52 | 49.70 | 42.55 | 25.37 | 19.48 | 37.63 | ||||||||||||
1973 | 17.35 | 22.82 | 26.87 | 29.47 | 40.81 | 46.97 | 54.58 | 53.29 | 45.63 | 35.29 | 27.59 | a | 21.10 | 35.15 | ||||||||||||
1974 | 19.06 | 17.86 | 31.68 | 31.93 | a | 44.32 | 52.21 | a | 55.61 | 52.81 | 47.24 | a | 40.87 | 26.41 | a | 15.94 | 36.33 | |||||||||
1975 | 19.23 | 23.07 | 26.81 | 27.37 | 37.61 | 47.23 | 56.58 | 53.06 | 47.50 | 33.26 | 23.23 | 18.26 | 34.43 | |||||||||||||
1976 | 15.32 | 25.14 | 24.79 | c | 34.88 | e | 43.46 | c | 48.45 | h | 56.53 | a | 53.71 | 48.38 | a | ----- | z | ----- | z | ----- | z | 37.78 | d | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 16.79 | 21.05 | 26.07 | 32.87 | 41.39 | 50.16 | 56.18 | 54.39 | 46.69 | 35.60 | 23.95 | 17.82 | 35.37 | |||||||||||||
S.D. | 4.21 | 3.88 | 2.97 | 2.38 | 2.56 | 2.36 | 2.20 | 2.17 | 2.52 | 3.02 | 2.89 | 4.31 | 1.56 | |||||||||||||
SKEW | -0.22 | -0.48 | -0.46 | -0.06 | -0.38 | -0.17 | -1.15 | -0.35 | -0.40 | 0.39 | 0.00 | -0.46 | -0.11 | |||||||||||||
MAX | 25.84 | 29.07 | 31.81 | 37.90 | 47.00 | 54.64 | 61.00 | 58.58 | 51.43 | 42.77 | 30.22 | 25.29 | 38.54 | |||||||||||||
MIN | 6.71 | 8.46 | 17.26 | 27.37 | 34.94 | 44.60 | 48.37 | 48.94 | 39.77 | 30.58 | 17.80 | 5.20 | 32.34 | |||||||||||||
YRS | 54 | 51 | 48 | 48 | 49 | 48 | 50 | 49 | 51 | 48 | 51 | 52 | 36 |