YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.97 | 58.57 | a | 52.00 | 44.69 | r | 25.67 | l | 21.26 | 47.70 | h | |||
1916 | 23.84 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.19 | 49.00 | a | 37.90 | ----- | z | 30.62 | r | 41.73 | h | |||
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | 20.16 | 25.96 | 34.29 | 35.27 | 44.19 | 60.00 | 59.53 | a | 57.74 | 52.50 | 42.45 | 20.52 | c | 15.19 | 38.98 | |||||||||||
1919 | 10.68 | 19.04 | 27.61 | ----- | z | 46.84 | 56.27 | ----- | z | ----- | z | ----- | z | ----- | z | 29.55 | h | 22.20 | a | 30.44 | f | |||||
1920 | 21.63 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.63 | k |
1921 | ----- | z | ----- | z | ----- | z | 33.52 | e | 44.23 | e | 55.04 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 38.88 | j |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.61 | 29.37 | 19.81 | 28.26 | i | |||
1924 | 11.70 | a | ----- | z | ----- | z | 20.37 | ----- | z | 45.90 | a | 44.73 | p | ----- | z | ----- | z | ----- | z | 23.22 | c | 13.62 | e | 22.96 | g | |
1925 | 11.44 | o | ----- | z | ----- | z | ----- | z | ----- | z | 33.20 | t | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | 49.43 | 43.23 | ----- | z | ----- | z | 58.97 | 55.03 | 47.10 | 31.87 | 15.19 | 42.97 | e | |||||||
1927 | 19.90 | 23.89 | 26.47 | a | 36.34 | a | 45.83 | a | 55.41 | c | 62.20 | a | 57.07 | a | 52.47 | 41.19 | 34.53 | 13.73 | a | 39.09 | ||||||
1928 | 24.83 | b | 21.66 | 32.97 | a | 33.24 | a | 40.68 | 46.38 | a | 58.41 | b | 51.03 | 43.03 | 43.81 | ----- | z | ----- | z | 39.60 | b | |||||
1929 | ----- | z | 18.07 | 26.23 | 31.73 | 44.21 | c | 49.84 | e | ----- | z | 57.45 | k | 51.13 | g | 39.50 | c | 26.15 | c | 25.08 | f | 33.68 | e | |||
1930 | 15.73 | e | 26.93 | a | 29.47 | a | 42.93 | c | 42.50 | c | 55.29 | m | 59.00 | m | 58.76 | f | 50.48 | a | 39.97 | a | 23.69 | d | 19.68 | c | 32.37 | c |
1931 | 18.63 | a | 29.20 | c | 28.36 | f | 39.05 | k | 45.33 | d | 48.89 | c | 60.29 | j | 58.77 | e | 54.23 | d | 43.26 | h | 25.44 | e | 11.26 | d | 36.47 | d |
1932 | 13.19 | d | 28.23 | c | 30.26 | h | 35.82 | s | 42.72 | m | 51.59 | h | 60.65 | h | 59.64 | f | 52.43 | g | 37.35 | k | 31.00 | f | 15.04 | d | 18.82 | i |
1933 | 15.28 | f | 10.10 | g | 30.22 | m | 26.27 | s | 39.80 | k | 55.16 | k | 60.32 | l | 58.42 | l | 56.55 | j | 45.14 | q | 32.83 | l | 25.05 | l | ----- | z |
1934 | 23.55 | k | 30.68 | f | 34.68 | i | 40.50 | j | 49.45 | k | 54.89 | l | 62.22 | m | 58.57 | j | 49.33 | f | 42.68 | i | 29.36 | h | 22.93 | c | 22.93 | k |
1935 | 22.48 | f | 23.57 | g | 24.45 | i | 34.24 | e | 42.19 | o | 55.12 | f | 60.50 | q | 57.61 | h | 51.62 | f | 38.72 | m | 27.00 | g | 22.52 | f | 34.24 | k |
1936 | 18.36 | i | 25.14 | 28.60 | f | 36.65 | g | 45.62 | o | 57.00 | c | 59.48 | j | 57.46 | g | 50.41 | c | 41.06 | m | 27.12 | e | 23.05 | l | 39.92 | h | |
1937 | 5.83 | g | 18.00 | m | 28.74 | l | 34.91 | g | 46.12 | e | 53.93 | o | 59.48 | b | 60.32 | i | 55.00 | k | 43.35 | n | 31.93 | 24.65 | 40.54 | h | ||
1938 | 22.77 | 25.00 | 27.77 | a | 35.70 | 43.03 | b | 55.67 | 56.48 | 59.40 | a | 51.77 | 40.30 | a | 22.73 | 22.19 | 38.57 | |||||||||
1939 | 20.58 | 13.00 | a | 27.83 | a | 33.47 | 43.00 | a | 54.97 | 60.06 | 62.32 | 52.40 | 36.77 | 30.83 | a | 26.74 | 38.50 | |||||||||
1940 | 21.97 | 23.79 | 31.10 | 37.73 | 48.84 | 54.60 | 61.19 | 59.00 | 50.23 | 41.43 | a | 27.63 | 23.29 | 40.07 | ||||||||||||
1941 | 22.03 | 26.89 | 26.19 | 32.03 | 45.00 | 50.57 | 58.71 | 57.84 | 50.43 | 39.65 | 29.10 | 23.48 | 38.49 | |||||||||||||
1942 | 21.19 | 22.04 | 23.48 | 35.80 | 42.61 | 53.17 | 58.39 | 58.32 | 50.30 | 39.74 | ----- | z | ----- | z | 40.50 | b | ||||||||||
1943 | 23.35 | ----- | z | ----- | z | 39.04 | f | 39.03 | 49.26 | c | 59.71 | q | 55.00 | j | 53.00 | 40.77 | ----- | z | ----- | z | 41.08 | g | ||||
1944 | ----- | z | ----- | z | ----- | z | ----- | z | 50.00 | x | 49.57 | ----- | z | 59.30 | a | 52.63 | 44.61 | 29.28 | a | 23.45 | 43.14 | f | ||||
1945 | ----- | z | 25.61 | 27.39 | 31.10 | a | ----- | z | ----- | z | 62.71 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 28.03 | i | ||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.90 | t | 61.03 | 58.94 | 54.77 | 39.97 | 28.57 | 26.48 | 44.96 | f | ||||||
1947 | 16.48 | 28.32 | 30.84 | 35.47 | 48.26 | 50.87 | 61.84 | 56.80 | a | 54.47 | 42.90 | 23.60 | e | 20.04 | f | 40.89 | a | |||||||||
1948 | 20.73 | a | 28.14 | g | 24.06 | 39.37 | 46.86 | q | 53.04 | c | 60.39 | 59.00 | 52.96 | d | 41.23 | 24.33 | c | 25.37 | a | 40.05 | b | |||||
1949 | 17.71 | 22.35 | e | 29.77 | e | 38.27 | 44.06 | 52.63 | 59.45 | 58.15 | e | 53.43 | p | 38.23 | 33.97 | 19.29 | 37.63 | a | ||||||||
1950 | 20.13 | a | 23.82 | 29.16 | 37.27 | 41.46 | c | 53.90 | a | 60.19 | 57.42 | 47.87 | 46.94 | 31.90 | 26.16 | 39.68 | ||||||||||
1951 | 20.70 | a | 22.82 | 25.48 | 35.57 | 45.26 | 53.13 | 63.19 | 59.13 | 50.93 | 38.65 | 23.83 | 17.68 | 38.03 | ||||||||||||
1952 | 21.81 | 20.86 | 22.52 | 36.47 | 46.39 | 55.43 | 59.58 | 60.03 | a | 52.47 | 44.74 | 23.93 | 19.17 | a | 38.62 | |||||||||||
1953 | 24.37 | a | 19.61 | 27.00 | b | 33.97 | 40.45 | 55.83 | 60.26 | 56.71 | 53.20 | 39.80 | a | 29.60 | 16.71 | 38.13 | ||||||||||
1954 | 20.45 | 26.14 | 24.07 | a | 39.60 | 46.03 | a | 52.30 | 58.69 | b | 57.48 | 51.70 | 43.10 | 32.73 | 20.43 | a | 39.39 | |||||||||
1955 | 17.68 | 15.64 | 26.06 | 32.33 | 43.39 | 52.40 | 58.19 | 57.58 | 53.70 | 42.23 | 27.87 | 25.45 | 37.71 | |||||||||||||
1956 | 28.19 | 19.14 | 27.87 | 35.53 | 46.68 | 59.30 | 58.39 | 57.61 | 55.27 | 42.17 | a | 23.97 | 19.74 | 39.49 | ||||||||||||
1957 | 25.03 | 31.43 | 29.87 | 34.23 | 42.52 | 55.73 | 58.71 | 57.55 | 50.57 | 40.55 | 25.70 | 24.61 | 39.71 | |||||||||||||
1958 | 20.35 | 28.14 | 25.61 | 34.50 | 49.26 | 58.33 | 62.71 | 60.32 | 51.43 | 40.94 | 28.30 | 25.90 | 40.48 | |||||||||||||
1959 | 20.03 | a | 22.15 | b | 26.71 | 39.37 | 45.45 | 58.00 | 60.94 | 57.81 | 50.70 | 40.81 | 27.93 | 24.13 | a | 39.50 | ||||||||||
1960 | 15.77 | 19.07 | 31.48 | b | 37.17 | 45.03 | 56.63 | 62.00 | 58.87 | 53.57 | 38.35 | 29.28 | a | 16.10 | 38.61 | |||||||||||
1961 | 17.30 | a | 24.14 | 27.42 | 35.07 | a | 43.26 | 55.33 | 58.16 | 56.84 | 45.79 | a | 37.13 | 25.97 | a | 14.06 | 36.71 | |||||||||
1962 | 14.80 | a | 25.07 | 22.43 | a | 37.87 | 41.03 | a | 51.30 | 57.10 | 57.00 | 51.62 | a | 42.19 | 34.63 | 25.41 | b | 38.37 | ||||||||
1963 | 13.94 | 28.07 | 27.53 | a | 33.57 | 48.30 | a | 53.10 | 62.71 | 57.37 | a | 53.97 | 46.34 | b | 30.97 | 19.77 | 39.64 | |||||||||
1964 | 16.74 | 16.69 | 23.39 | 33.23 | 45.19 | ----- | z | 60.55 | 56.87 | 49.66 | a | 42.19 | 25.66 | a | 21.81 | 35.63 | a | |||||||||
1965 | 20.52 | 20.86 | 23.50 | a | 33.37 | 38.97 | a | 48.18 | b | 57.16 | 55.87 | 45.96 | b | 42.28 | b | 35.86 | a | 25.53 | a | 37.34 | ||||||
1966 | 18.97 | 19.54 | 29.94 | 37.53 | 50.06 | 55.20 | 62.20 | a | 58.65 | 53.53 | 43.00 | 35.27 | 20.90 | 40.40 | ||||||||||||
1967 | 18.29 | 25.71 | 32.32 | 33.17 | 43.06 | 50.45 | a | 60.65 | 57.67 | a | 51.33 | 43.00 | 34.43 | 16.23 | 38.86 | |||||||||||
1968 | 17.00 | 28.38 | 29.68 | 30.48 | a | 39.23 | 49.37 | k | 58.96 | g | 55.04 | f | 49.37 | 42.90 | 29.10 | 18.74 | 31.65 | c | ||||||||
1969 | 24.45 | 23.93 | 24.84 | 36.93 | 45.76 | b | 49.00 | i | 59.52 | j | 61.22 | h | 53.37 | 36.19 | 28.77 | 26.87 | 33.46 | c | ||||||||
1970 | 22.90 | 29.43 | 27.45 | b | 30.53 | 44.81 | 51.04 | f | 61.09 | i | 59.09 | h | 49.59 | a | 36.39 | 31.31 | a | 24.58 | 33.00 | c | ||||||
1971 | 21.90 | 22.18 | 28.16 | 34.23 | 41.64 | c | 55.00 | g | 60.95 | k | 55.30 | h | 49.30 | 37.68 | 29.63 | 21.87 | 31.84 | c | ||||||||
1972 | 21.68 | 27.66 | 36.42 | 38.53 | 44.07 | b | 55.18 | h | 60.65 | k | 58.39 | h | 51.87 | ----- | z | 27.27 | 21.04 | c | 33.57 | d | ||||||
1973 | ----- | z | 26.68 | 27.74 | 31.46 | b | ----- | z | 50.83 | g | 57.20 | k | 55.18 | i | 48.27 | ----- | z | 30.00 | ----- | z | 32.83 | g | ||||
1974 | 19.03 | 20.93 | a | 30.83 | a | 30.10 | 45.31 | b | 57.00 | s | 54.95 | k | 52.24 | n | 49.50 | b | 42.57 | c | 29.03 | a | 18.97 | a | 31.81 | c | ||
1975 | 18.07 | b | 23.30 | e | 26.67 | d | 27.70 | g | 34.41 | d | 41.62 | q | 55.44 | o | 51.62 | j | 51.10 | 39.83 | a | 28.47 | 22.71 | 30.57 | d | |||
1976 | 21.07 | a | 26.39 | a | 27.27 | a | 36.87 | 46.24 | f | 53.07 | 59.86 | j | 57.70 | k | 51.86 | a | 39.21 | b | 29.93 | c | 22.23 | a | 34.21 | c | ||
1977 | 18.48 | b | 26.11 | a | 26.37 | a | 37.48 | e | 42.52 | d | 57.95 | i | ----- | z | 58.57 | q | 54.00 | 44.63 | a | 32.50 | 28.58 | 34.52 | c | |||
1978 | 26.50 | a | 25.74 | a | 34.61 | 37.50 | ----- | z | ----- | z | ----- | z | 58.09 | h | 53.34 | a | 46.30 | d | ----- | z | 18.79 | l | 37.33 | f | ||
1979 | 18.23 | 23.73 | b | 29.35 | 37.05 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 23.77 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 19.82 | 23.80 | 27.94 | 35.22 | 44.01 | 53.38 | 59.92 | 57.95 | 51.39 | 41.16 | 28.67 | 21.07 | 38.89 | |||||||||||||
S.D. | 3.66 | 3.92 | 3.20 | 4.12 | 3.03 | 3.46 | 1.76 | 1.76 | 2.49 | 2.87 | 3.70 | 4.21 | 0.95 | |||||||||||||
SKEW | -0.28 | -0.54 | 0.51 | -0.05 | -0.57 | -0.23 | 0.07 | -1.29 | -1.04 | 0.14 | -0.01 | -0.40 | -0.31 | |||||||||||||
MAX | 28.19 | 31.43 | 36.42 | 49.43 | 50.06 | 60.00 | 63.19 | 62.32 | 55.27 | 47.10 | 35.86 | 28.58 | 40.48 | |||||||||||||
MIN | 10.68 | 13.00 | 22.43 | 20.37 | 34.41 | 45.90 | 56.48 | 51.03 | 43.03 | 35.61 | 20.52 | 11.26 | 36.71 | |||||||||||||
YRS | 48 | 47 | 45 | 46 | 44 | 36 | 32 | 35 | 48 | 46 | 47 | 47 | 23 |