YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.86 | a | 60.26 | 58.13 | a | 50.67 | 32.23 | 17.57 | 15.27 | i | 45.29 | f | ||||
1916 | 20.67 | g | 26.61 | a | 33.03 | 38.20 | 42.07 | d | 53.67 | f | 59.35 | 57.13 | 48.20 | 38.04 | g | 24.30 | ----- | z | 41.11 | d | ||||||
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.70 | 62.71 | j | 56.97 | 47.38 | i | 37.92 | e | 24.53 | 22.18 | t | 42.03 | h | |||
1918 | ----- | z | 31.48 | c | 34.87 | 37.77 | h | 38.71 | x | ----- | z | 59.38 | e | 59.50 | o | ----- | z | ----- | z | ----- | z | ----- | z | 41.91 | i | |
1919 | -1.87 | 19.00 | q | 26.67 | d | ----- | z | 45.92 | r | 51.60 | e | ----- | z | ----- | z | ----- | z | 39.96 | h | 22.15 | d | -4.00 | y | 24.64 | h | |
1920 | ----- | z | 29.61 | f | 25.10 | j | 37.18 | s | ----- | z | 51.69 | q | ----- | z | 52.69 | r | 47.83 | 37.35 | 25.07 | 16.19 | 31.61 | h | ||||
1921 | 19.90 | j | 21.79 | 31.00 | 31.53 | 42.62 | b | 52.13 | o | 59.19 | 55.52 | 50.50 | 41.48 | 27.40 | 24.90 | a | 38.59 | b | ||||||||
1922 | 16.65 | h | 20.52 | c | 25.23 | 29.97 | 41.77 | 53.50 | 58.14 | j | 57.87 | 49.70 | 36.65 | 24.17 | g | 23.10 | b | 37.59 | c | |||||||
1923 | 21.48 | 18.11 | 22.39 | 32.80 | 42.48 | 45.40 | 60.10 | 54.87 | 45.53 | 35.57 | j | 29.43 | 18.77 | 35.58 | a | |||||||||||
1924 | 13.69 | b | 28.80 | i | 26.10 | 36.60 | 46.13 | 55.42 | d | 60.68 | 59.45 | 48.50 | 36.61 | 26.30 | 12.26 | 38.34 | a | |||||||||
1925 | 5.84 | 25.79 | 30.37 | d | 37.63 | 47.81 | 52.70 | 61.19 | 52.61 | 48.87 | 38.61 | 25.27 | 18.77 | 37.12 | ||||||||||||
1926 | 18.31 | e | 24.68 | 29.35 | 40.03 | 46.68 | 53.27 | 64.89 | m | 62.41 | d | 52.18 | b | 39.16 | 30.23 | 20.35 | e | 37.88 | a | |||||||
1927 | 25.48 | h | 28.85 | a | 29.27 | i | 37.70 | 44.97 | 54.10 | 60.81 | 57.39 | 50.90 | 38.84 | 31.63 | 17.06 | 42.22 | b | |||||||||
1928 | 18.61 | 24.31 | 31.74 | 34.37 | 46.58 | 53.70 | 60.86 | j | 57.42 | 51.80 | 41.16 | 29.30 | 14.19 | 36.65 | a | |||||||||||
1929 | 15.32 | 16.32 | 25.79 | c | 30.53 | 43.93 | b | 53.29 | f | 60.77 | a | 58.81 | 51.50 | 39.84 | 22.83 | 19.90 | 35.05 | a | ||||||||
1930 | 13.29 | 24.82 | 28.19 | 40.29 | b | 41.52 | 53.30 | 62.11 | c | 58.81 | 47.50 | d | 31.95 | k | 23.25 | b | 15.44 | f | 39.31 | b | ||||||
1931 | 14.55 | 28.42 | b | 29.45 | b | 39.17 | 44.48 | d | 58.54 | f | 64.48 | 60.87 | a | 55.97 | 42.03 | 24.67 | 9.19 | 37.57 | a | |||||||
1932 | 10.34 | b | 27.83 | 31.23 | 37.52 | a | 46.61 | 51.79 | a | 62.77 | 60.42 | 50.00 | 38.97 | 27.80 | 11.65 | 38.08 | ||||||||||
1933 | 2.89 | l | 9.00 | 32.20 | k | 33.37 | 40.77 | a | 56.33 | 63.61 | 60.45 | 55.60 | 46.03 | 29.17 | 23.26 | 41.76 | b | |||||||||
1934 | 22.55 | 30.04 | 36.16 | 42.07 | 49.42 | 52.17 | 63.39 | 60.84 | 49.97 | 39.87 | 29.03 | 21.71 | 41.43 | |||||||||||||
1935 | 22.50 | a | 26.04 | 29.52 | 38.30 | 45.03 | 51.36 | e | 49.19 | 49.74 | 40.37 | c | 34.94 | 24.93 | 19.29 | 35.93 | ||||||||||
1936 | 19.10 | 28.17 | 28.32 | 34.00 | 44.48 | 54.90 | 57.55 | 59.32 | 48.24 | a | 37.97 | 22.83 | 19.90 | 37.90 | ||||||||||||
1937 | 3.13 | 15.50 | 27.29 | 33.43 | 44.16 | ----- | z | 50.26 | 48.42 | 43.23 | 37.97 | 27.67 | 25.23 | 32.39 | a | |||||||||||
1938 | 22.32 | 26.04 | 28.26 | 35.20 | 41.52 | 51.73 | 55.35 | 57.77 | 48.13 | 35.71 | 20.13 | 21.13 | 36.94 | |||||||||||||
1939 | 14.40 | f | 9.04 | e | 21.25 | w | 40.30 | t | ----- | z | 54.52 | c | 62.19 | d | 59.00 | l | 50.04 | e | 37.24 | j | 27.71 | p | 21.96 | d | 39.55 | g |
1940 | 12.34 | b | 27.03 | 31.42 | 38.90 | 49.13 | 56.33 | 60.33 | v | 68.10 | 61.82 | m | ----- | z | ----- | z | ----- | z | 40.47 | e | ||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 23.53 | k | 22.89 | c | 22.89 | k |
1942 | 16.68 | 18.65 | b | 26.69 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.04 | g | 30.83 | 26.03 | b | 23.78 | g | ||
1943 | 22.19 | d | 26.79 | 33.03 | 42.03 | 46.87 | 52.40 | 61.26 | 59.10 | a | 51.28 | a | 47.11 | l | 26.07 | 22.42 | 40.31 | a | ||||||||
1944 | 15.58 | 25.36 | a | 28.35 | 33.87 | 42.90 | 49.19 | c | 56.96 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.54 | f | ||||
1945 | ----- | z | 32.82 | k | 28.94 | 33.03 | 48.19 | 46.94 | n | 60.61 | 60.06 | 49.20 | 38.90 | a | 23.77 | 15.73 | a | 39.83 | c | |||||||
1946 | 17.45 | 21.04 | ----- | z | 46.00 | r | 43.03 | 53.33 | 61.19 | 61.52 | 51.40 | 39.78 | v | 25.53 | 23.87 | 39.82 | c | |||||||||
1947 | 15.82 | i | 24.61 | 29.55 | 34.28 | a | 48.35 | 49.13 | 60.32 | 58.00 | 51.97 | 41.65 | 24.93 | 18.87 | 40.15 | a | ||||||||||
1948 | 14.74 | 20.52 | b | 24.58 | 37.87 | 44.55 | 49.57 | 56.10 | 55.74 | 49.07 | 34.71 | 20.57 | 23.42 | 35.95 | ||||||||||||
1949 | 13.48 | 11.93 | 30.32 | 39.60 | 43.03 | 50.93 | 58.43 | a | 56.00 | 50.60 | 37.77 | 30.67 | 19.39 | 36.85 | ||||||||||||
1950 | 18.71 | 25.50 | 29.94 | 37.87 | 41.55 | 52.24 | a | 59.06 | 56.10 | 49.90 | 43.61 | 29.07 | 24.39 | 38.99 | ||||||||||||
1951 | 19.39 | 23.21 | 28.71 | 36.37 | 45.03 | 50.50 | 61.10 | a | 57.68 | 50.53 | 38.77 | 25.90 | 18.74 | 37.99 | ||||||||||||
1952 | 19.39 | 23.14 | 26.77 | 36.20 | 46.03 | 52.97 | 57.32 | 58.06 | 49.40 | 38.23 | 22.43 | 20.74 | 37.56 | |||||||||||||
1953 | 26.19 | 21.54 | 28.68 | 34.87 | 38.61 | 52.34 | a | ----- | z | 56.00 | 48.41 | c | 36.45 | 29.30 | 17.84 | 35.48 | a | |||||||||
1954 | 21.16 | 27.54 | 26.84 | 38.03 | 45.90 | 51.84 | e | 61.19 | 56.16 | 50.67 | 40.32 | 29.00 | 19.23 | a | 38.99 | |||||||||||
1955 | 18.32 | 15.11 | 26.55 | 33.36 | b | 43.62 | o | 48.83 | l | 59.74 | 58.77 | 49.00 | 37.96 | e | 27.47 | 24.84 | 35.11 | b | ||||||||
1956 | 24.97 | 21.52 | 27.06 | 35.78 | g | 47.06 | 57.91 | h | 60.16 | 56.10 | 52.03 | 38.06 | 18.80 | 16.35 | 36.21 | b | ||||||||||
1957 | 22.71 | 28.14 | 33.74 | 36.93 | 42.13 | 50.74 | k | 57.71 | g | 58.75 | c | 48.34 | a | 39.90 | 25.47 | 21.70 | a | 35.78 | b | |||||||
1958 | 19.14 | j | 28.19 | a | 27.35 | 34.43 | 48.42 | 56.96 | b | 61.65 | 64.23 | 54.63 | 42.87 | 29.70 | 28.52 | 43.36 | a | |||||||||
1959 | 22.45 | 26.57 | 32.58 | 43.57 | 50.52 | 57.10 | 64.77 | 61.32 | 54.73 | 41.00 | f | 28.82 | h | 22.25 | o | 45.96 | c | |||||||||
1960 | 18.06 | n | 23.48 | 32.84 | 37.50 | f | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.40 | k | 29.53 | 14.45 | 25.08 | h | ||||
1961 | 13.26 | 27.61 | 29.32 | 37.20 | 45.74 | 56.37 | 63.42 | 57.58 | 47.47 | 34.55 | 26.73 | 8.77 | 37.33 | |||||||||||||
1962 | 13.46 | c | 26.32 | 25.61 | 39.57 | 43.37 | a | 52.60 | 58.97 | 57.39 | 51.93 | 37.42 | 31.72 | e | 21.16 | 38.29 | ||||||||||
1963 | 9.29 | 27.32 | 27.90 | 33.09 | g | 49.74 | 60.50 | t | 62.14 | j | 55.00 | m | 53.70 | t | 43.83 | h | 27.10 | i | 14.57 | j | 28.56 | h | ||||
1964 | 11.08 | g | 15.05 | i | 21.75 | g | 31.68 | e | 44.42 | l | 50.19 | i | 61.47 | n | 58.80 | k | 49.00 | i | 38.50 | i | 22.67 | l | 18.12 | o | 31.68 | k |
1965 | 20.62 | w | 19.83 | j | 23.20 | k | ----- | z | ----- | z | 49.80 | 59.52 | 56.97 | a | 48.73 | 42.23 | 33.03 | 22.23 | 44.64 | e | ||||||
1966 | 14.42 | 17.07 | 31.53 | a | 30.60 | 46.55 | 52.70 | 59.84 | 59.71 | 50.50 | 39.39 | 30.17 | 20.04 | f | 39.32 | a | ||||||||||
1967 | 13.83 | b | 22.79 | 27.27 | a | 30.37 | 42.06 | 49.50 | 62.45 | 58.81 | 50.87 | 38.48 | b | 29.73 | 11.07 | b | 36.44 | |||||||||
1968 | ----- | z | 26.07 | 25.06 | 28.72 | a | 36.55 | 55.93 | 65.94 | 61.06 | 50.20 | 39.26 | 30.40 | 11.35 | 39.14 | a | ||||||||||
1969 | 21.52 | 23.93 | 24.00 | b | 36.77 | 47.06 | 50.58 | r | ----- | z | 59.65 | n | 52.30 | 33.53 | a | 24.67 | r | 25.55 | 33.08 | d | ||||||
1970 | 21.03 | 28.32 | 34.37 | d | 40.17 | 44.00 | 39.83 | 48.00 | d | ----- | z | ----- | z | 21.67 | y | 27.93 | 18.87 | 33.61 | c | |||||||
1971 | 17.26 | 20.43 | 26.00 | a | 36.50 | 44.84 | 61.30 | 69.48 | 64.89 | d | ----- | z | 39.90 | a | 33.23 | 22.69 | b | 39.68 | a | |||||||
1972 | 23.20 | a | 29.00 | a | 34.68 | 37.13 | 43.94 | 54.50 | 59.84 | 57.58 | 50.69 | a | 40.84 | 24.27 | 12.67 | j | 41.42 | a | ||||||||
1973 | 6.56 | m | 25.67 | m | 28.90 | j | 31.76 | m | 41.62 | e | ----- | z | 54.00 | s | 57.14 | j | 45.28 | l | 35.05 | j | 28.53 | k | 17.22 | m | 41.62 | k |
1974 | 12.29 | n | ----- | z | 10.64 | q | 17.24 | i | 26.00 | p | 39.82 | m | 36.53 | p | 37.05 | k | 40.40 | j | 37.55 | i | 40.11 | l | 14.27 | i | ----- | z |
1975 | 18.00 | m | 10.84 | i | ----- | z | ----- | z | ----- | z | ----- | z | 55.52 | h | 54.29 | j | 42.90 | i | 27.24 | j | 14.41 | m | ----- | z | ----- | z |
1976 | 11.76 | j | 12.11 | j | 16.13 | h | 24.50 | h | 25.44 | o | ----- | z | ----- | z | ----- | z | 35.68 | h | 38.11 | v | 4.67 | x | 2.60 | f | ----- | z |
1977 | ----- | z | 9.29 | k | 26.00 | g | 38.75 | j | 42.21 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 25.00 | s | ----- | z |
1978 | 24.08 | e | 18.92 | d | 26.20 | p | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.50 | j |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 16.98 | 23.42 | 29.06 | 36.06 | 44.68 | 52.55 | 60.07 | 58.28 | 49.98 | 38.74 | 26.70 | 19.55 | 37.72 | |||||||||||||
S.D. | 5.94 | 5.21 | 3.14 | 3.49 | 2.94 | 3.49 | 3.98 | 3.38 | 2.77 | 2.74 | 3.66 | 4.70 | 1.40 | |||||||||||||
SKEW | -1.05 | -1.07 | 0.29 | -0.11 | -0.24 | -0.92 | -1.09 | -0.14 | -0.73 | 0.07 | -0.42 | -0.59 | 1.10 | |||||||||||||
MAX | 26.19 | 31.48 | 36.16 | 43.57 | 50.52 | 61.30 | 69.48 | 68.10 | 55.97 | 46.03 | 33.23 | 28.52 | 41.43 | |||||||||||||
MIN | -1.87 | 9.00 | 22.39 | 28.72 | 36.55 | 39.83 | 48.00 | 48.42 | 40.37 | 32.23 | 17.57 | 8.77 | 35.93 | |||||||||||||
YRS | 41 | 50 | 48 | 45 | 47 | 41 | 42 | 46 | 46 | 41 | 48 | 45 | 15 |