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 | 27.57 | q | 36.17 | 36.68 | 45.70 | 53.16 | 49.97 | 44.17 | 29.23 | 20.90 | 18.19 | 37.13 | c | |||||||||
1916 | 22.19 | 23.10 | 27.94 | 30.97 | 35.71 | 43.77 | 53.55 | 51.65 | 41.57 | 36.10 | 18.70 | 14.79 | c | 33.33 | ||||||||||||
1917 | 15.82 | t | 12.88 | l | 10.00 | d | 19.70 | 24.03 | ----- | z | 53.07 | a | 54.54 | g | 52.81 | d | 31.43 | a | 20.50 | 18.61 | 28.77 | d | ||||
1918 | 16.39 | 20.76 | g | 30.16 | 31.47 | 33.69 | e | 50.80 | 54.62 | b | 51.33 | d | 34.00 | y | 34.19 | 18.33 | 7.35 | 32.83 | b | |||||||
1919 | 2.32 | 17.93 | 25.03 | 31.83 | 41.39 | 43.87 | 54.68 | 51.23 | 47.23 | 34.26 | 21.83 | a | 16.84 | 32.37 | ||||||||||||
1920 | 16.45 | 27.76 | 22.39 | 26.41 | a | 38.23 | 45.17 | 49.71 | 48.35 | 42.77 | 28.73 | i | 21.37 | 15.00 | 32.15 | a | ||||||||||
1921 | 18.26 | 17.81 | b | 27.37 | d | 26.87 | 38.73 | a | 47.30 | 66.04 | g | 54.04 | g | 32.20 | y | 33.57 | x | 23.12 | n | 17.94 | o | 29.39 | f | |||
1922 | 11.77 | a | 19.18 | q | 23.27 | a | 31.10 | 36.71 | 46.93 | 52.03 | 53.00 | 45.53 | 32.13 | a | 22.50 | 26.87 | p | 35.50 | b | |||||||
1923 | 21.05 | i | 16.71 | 23.26 | 32.60 | 37.74 | 42.27 | 53.13 | 51.50 | a | 39.27 | 30.81 | 22.72 | a | 18.87 | h | 35.00 | b | ||||||||
1924 | 6.82 | c | 10.72 | 17.05 | i | 30.83 | 40.00 | 47.63 | 53.92 | f | 51.16 | 41.53 | k | 33.82 | c | 19.86 | h | 11.73 | e | 29.09 | d | |||||
1925 | 10.19 | o | 21.75 | d | 27.46 | c | 34.33 | c | 39.41 | b | 48.80 | e | 55.84 | 51.78 | d | 45.38 | d | 32.08 | f | 18.47 | k | 13.05 | l | 40.60 | d | |
1926 | 8.83 | a | 24.07 | 23.67 | a | 34.14 | h | 39.45 | b | 40.81 | c | 49.52 | 47.33 | m | 46.60 | j | 32.87 | 23.04 | c | 12.67 | a | 28.33 | c | |||
1927 | 21.11 | d | 23.21 | 24.00 | a | 30.31 | d | 36.13 | h | 44.32 | k | 54.08 | e | 50.72 | m | 47.03 | 30.81 | j | 29.20 | o | 12.67 | d | 30.34 | e | ||
1928 | 15.14 | b | 18.17 | e | 25.28 | f | 31.58 | r | 36.10 | u | ----- | z | 55.33 | v | ----- | z | 39.43 | p | 35.97 | 24.59 | a | 14.73 | i | 23.46 | h | |
1929 | 8.94 | o | 8.23 | o | 25.32 | 24.46 | q | 39.92 | r | ----- | z | 54.57 | x | 50.60 | u | 40.81 | n | 36.85 | e | ----- | z | ----- | z | 31.08 | j | |
1930 | ----- | z | 17.58 | d | 20.60 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.81 | d | ----- | z | ----- | z | 22.33 | i |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | 23.87 | f | 22.59 | i | 28.75 | b | 35.40 | k | 45.63 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 3.00 | o | 28.75 | k |
1933 | 2.12 | o | ----- | z | ----- | z | 24.87 | o | 35.19 | 47.38 | a | 53.60 | f | 50.74 | d | 47.44 | n | 34.42 | e | 22.41 | c | 16.83 | h | 38.03 | g | |
1934 | 11.85 | d | 21.61 | 24.32 | 30.48 | c | 41.30 | a | 42.08 | e | 54.03 | b | 53.33 | d | 43.85 | c | 30.90 | 21.77 | d | 12.00 | r | 34.14 | a | |||
1935 | 18.26 | d | 17.32 | 24.48 | f | 31.89 | c | 36.52 | h | 41.92 | r | 50.08 | e | 53.39 | c | 42.21 | b | 30.32 | f | 18.09 | g | 9.00 | v | 35.53 | f | |
1936 | 8.76 | f | 20.11 | b | 23.67 | j | 28.79 | f | 38.57 | a | 45.79 | f | 51.56 | d | 49.88 | f | 42.54 | b | 30.16 | 12.53 | o | 12.71 | x | 36.59 | g | |
1937 | 5.04 | g | 18.41 | a | 20.93 | b | 24.29 | m | 32.40 | k | 43.26 | g | 49.39 | c | 50.17 | s | 43.76 | a | 32.10 | b | 22.90 | j | ----- | z | 32.92 | g |
1938 | ----- | z | 22.12 | c | 28.14 | c | 30.46 | b | 37.04 | d | 47.73 | h | 52.58 | g | 49.14 | c | 42.97 | a | 30.59 | b | 14.50 | h | 19.14 | x | 34.35 | e |
1939 | 16.73 | p | 11.17 | d | 31.00 | p | 32.20 | e | 39.17 | g | 46.04 | e | 52.14 | i | 51.76 | f | 47.12 | e | 30.63 | a | 21.00 | c | 14.75 | s | 31.36 | f |
1940 | 14.54 | r | 18.54 | a | 21.73 | i | 31.00 | g | 40.15 | e | 48.60 | 54.93 | c | 52.11 | c | 47.00 | d | 32.47 | p | 19.94 | n | 22.54 | e | 40.55 | e | |
1941 | 22.22 | m | 24.52 | e | 25.69 | b | 31.63 | 41.52 | j | 46.59 | a | 51.79 | c | 51.36 | c | 43.40 | e | 35.30 | h | 22.03 | 18.94 | 35.10 | c | |||
1942 | 15.71 | 12.77 | b | 20.27 | a | 30.47 | k | 32.56 | f | 42.38 | d | 50.19 | d | 52.08 | e | 43.47 | 33.33 | a | 23.50 | 22.48 | f | 32.63 | c | |||
1943 | 19.59 | b | 19.52 | c | 23.80 | f | 28.88 | d | 38.77 | i | 44.10 | j | 50.63 | d | 50.41 | n | 43.96 | d | 27.24 | n | 18.20 | j | 10.17 | a | 28.79 | f |
1944 | 3.84 | 16.79 | 19.80 | a | 28.73 | 33.71 | 38.27 | 50.42 | 52.87 | 44.60 | 35.68 | 23.73 | 15.68 | 30.34 | ||||||||||||
1945 | ----- | z | 24.86 | 23.10 | 27.20 | 28.84 | ----- | z | ----- | z | 53.10 | 44.87 | 33.60 | a | 20.17 | 15.07 | a | 30.09 | c | |||||||
1946 | 15.32 | 17.93 | 24.74 | 34.28 | a | 39.71 | 48.43 | 54.35 | 55.04 | g | 46.46 | d | 30.44 | f | 22.21 | a | 19.54 | e | 32.30 | b | ||||||
1947 | 16.11 | c | 22.25 | 23.31 | b | 29.48 | e | ----- | z | ----- | z | 51.61 | 52.12 | e | ----- | z | 33.65 | e | 18.50 | b | 12.58 | 28.85 | c | |||
1948 | 12.67 | d | 20.76 | 20.13 | 33.20 | e | 37.25 | k | 44.32 | b | 57.91 | t | 55.65 | h | 42.62 | a | 32.97 | 17.81 | c | 21.83 | a | 27.37 | c | |||
1949 | 12.23 | a | 19.59 | a | 25.31 | b | 30.93 | a | 38.07 | c | 46.12 | d | 54.07 | b | 49.38 | e | 45.37 | c | 30.53 | a | 18.89 | c | 9.19 | e | 31.64 | |
1950 | 14.86 | i | 19.08 | c | 21.96 | c | 28.48 | a | 33.55 | b | 42.48 | c | 52.14 | b | 49.00 | a | 40.41 | c | 34.64 | c | 17.80 | e | 15.85 | e | 32.31 | a |
1951 | 14.39 | c | 17.54 | 22.67 | d | 30.07 | p | 38.90 | 40.62 | f | 55.77 | 54.55 | 42.50 | 32.87 | 20.20 | 18.19 | 31.76 | b | ||||||||
1952 | 20.87 | 19.76 | 21.29 | 29.90 | 38.87 | 49.63 | 53.35 | 54.55 | 41.47 | 28.97 | 17.80 | 13.06 | 32.46 | |||||||||||||
1953 | 24.23 | a | 16.82 | 27.42 | 30.50 | 35.32 | 47.74 | g | 55.84 | 49.71 | 41.80 | 31.19 | 24.70 | 13.06 | 31.87 | a | ||||||||||
1954 | 16.29 | 21.93 | 23.39 | 32.73 | 40.71 | 46.57 | 55.97 | a | 50.77 | 47.63 | 36.94 | 22.90 | 12.19 | 34.00 | ||||||||||||
1955 | 15.87 | 12.75 | 24.52 | 28.40 | 39.06 | 44.43 | 52.77 | 53.63 | a | 43.03 | 35.48 | 23.00 | 18.19 | 32.60 | ||||||||||||
1956 | 21.06 | 14.86 | 20.87 | 26.50 | 36.48 | 48.07 | 51.58 | 49.06 | 43.11 | b | 34.45 | 16.13 | 11.71 | 31.16 | ||||||||||||
1957 | 23.94 | 27.07 | 26.48 | 28.80 | 38.90 | 45.20 | 55.10 | 55.22 | m | 40.80 | 37.13 | 23.07 | 16.81 | 33.03 | a | |||||||||||
1958 | 13.65 | 24.61 | 24.61 | 30.97 | 39.45 | 48.34 | a | 54.55 | 54.26 | 48.73 | 35.16 | 23.47 | 16.52 | 34.53 | ||||||||||||
1959 | 16.48 | 20.64 | 23.23 | 32.73 | 36.90 | 50.13 | 53.42 | 54.65 | 41.03 | 31.65 | 20.10 | 18.32 | 33.27 | |||||||||||||
1960 | 10.61 | 18.10 | 27.23 | 29.67 | 35.35 | 47.10 | 52.84 | 50.65 | 44.37 | 31.94 | 24.33 | 16.13 | 32.36 | |||||||||||||
1961 | 10.19 | 21.46 | 28.00 | 30.90 | 37.84 | 47.00 | 52.65 | 52.52 | 43.63 | 31.61 | 24.60 | 18.65 | 33.25 | |||||||||||||
1962 | 15.90 | 25.25 | 20.58 | 31.93 | a | 36.13 | 47.53 | k | 53.35 | 49.42 | 48.93 | 34.58 | 26.27 | 19.03 | a | 32.85 | a | |||||||||
1963 | 14.39 | 20.89 | 24.74 | 33.33 | 40.16 | 44.77 | 55.61 | 54.55 | 47.97 | a | 35.06 | 22.53 | 13.90 | 33.99 | ||||||||||||
1964 | 6.81 | 9.72 | 22.61 | 30.00 | 39.21 | b | 44.23 | 54.97 | 51.10 | 48.50 | 31.87 | 25.27 | 19.52 | 31.98 | ||||||||||||
1965 | 21.74 | 18.32 | 23.59 | b | 30.30 | 37.29 | 43.57 | 53.61 | 51.65 | 46.47 | 31.03 | 22.97 | 15.19 | 32.98 | ||||||||||||
1966 | 10.52 | 16.04 | 20.84 | 31.83 | 40.87 | 48.90 | 56.32 | 52.52 | 44.23 | 31.74 | 24.80 | 15.03 | 32.80 | |||||||||||||
1967 | 11.61 | 20.36 | 29.06 | 33.53 | 39.32 | 46.73 | 56.74 | 52.26 | 44.57 | 33.61 | 25.97 | 15.94 | 34.14 | |||||||||||||
1968 | 18.16 | 24.66 | 24.87 | 29.73 | 39.97 | 47.30 | 54.42 | 51.16 | 41.87 | 33.45 | 25.97 | a | 11.30 | a | 33.57 | |||||||||||
1969 | 23.74 | 18.71 | 21.06 | 32.10 | 39.06 | 44.50 | 57.00 | 55.26 | 46.40 | 34.58 | 19.83 | 19.43 | a | 34.31 | ||||||||||||
1970 | 14.77 | 23.04 | 24.48 | 27.40 | 37.61 | 41.93 | 50.50 | a | 53.00 | 38.07 | 25.93 | a | 23.41 | a | 15.29 | 31.29 | ||||||||||
1971 | 13.00 | g | 18.46 | d | 21.82 | i | 27.97 | 35.61 | 42.80 | 55.13 | 50.77 | 41.37 | 29.84 | 24.67 | 16.29 | 34.29 | b | |||||||||
1972 | 17.45 | 21.03 | 24.13 | 26.87 | 35.55 | 48.93 | 53.97 | 50.52 | 43.40 | 36.42 | 21.07 | 16.45 | b | 32.98 | ||||||||||||
1973 | 13.39 | 19.68 | 26.71 | 25.57 | 36.35 | 45.13 | 52.77 | 50.33 | a | 42.03 | 31.03 | 25.33 | c | 18.68 | 32.25 | |||||||||||
1974 | 18.96 | g | 14.25 | 28.10 | a | 28.93 | b | 40.35 | 47.83 | a | 50.42 | 47.55 | 42.13 | 40.25 | w | 23.61 | g | 16.68 | c | 35.14 | c | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 15.14 | 19.46 | 23.93 | 30.20 | 37.46 | 45.79 | 53.28 | 51.66 | 44.17 | 32.84 | 22.06 | 15.69 | 32.80 | |||||||||||||
S.D. | 5.21 | 3.99 | 3.34 | 2.76 | 3.18 | 2.73 | 2.05 | 1.84 | 2.80 | 2.44 | 2.53 | 3.31 | 1.09 | |||||||||||||
SKEW | -0.35 | -0.32 | -1.29 | -0.99 | -2.05 | -0.46 | -0.23 | -0.03 | 0.54 | -0.30 | -0.37 | -0.31 | -0.37 | |||||||||||||
MAX | 24.23 | 27.76 | 30.16 | 36.17 | 41.39 | 50.80 | 57.00 | 55.26 | 52.81 | 37.13 | 26.27 | 22.54 | 34.53 | |||||||||||||
MIN | 2.32 | 9.72 | 10.00 | 19.70 | 24.03 | 38.27 | 49.39 | 47.55 | 38.07 | 25.93 | 16.13 | 7.35 | 30.34 | |||||||||||||
YRS | 41 | 52 | 48 | 49 | 46 | 43 | 48 | 44 | 49 | 48 | 45 | 43 | 22 |