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 | 43.25 | q | 49.67 | 53.31 | 64.90 | 68.60 | 66.45 | a | 59.85 | 48.73 | 37.60 | 31.32 | 53.38 | c | ||||||||
1916 | 32.34 | 37.40 | 44.79 | 48.23 | 55.40 | 65.45 | 69.03 | 66.77 | 60.05 | 51.00 | 36.48 | 28.41 | c | 49.61 | ||||||||||||
1917 | 28.50 | t | 34.97 | l | 36.54 | q | 42.81 | a | 45.40 | ----- | z | 70.77 | a | 70.08 | g | 65.08 | d | 50.77 | a | 39.57 | 35.18 | 49.94 | e | |||
1918 | 28.21 | 35.64 | g | 44.24 | 47.50 | 54.48 | e | 67.42 | 69.41 | b | 66.61 | d | 54.30 | y | 49.24 | 31.47 | 21.11 | 47.97 | b | |||||||
1919 | 18.68 | 28.09 | 37.13 | 46.75 | 56.44 | 61.45 | 67.47 | a | 67.79 | 60.47 | 47.94 | 36.59 | a | 30.34 | 46.59 | |||||||||||
1920 | 29.85 | 37.66 | 37.32 | a | 42.14 | a | 55.03 | 62.03 | 67.90 | 64.21 | 59.73 | 45.82 | i | 36.62 | 29.19 | 47.43 | a | |||||||||
1921 | 32.32 | a | 34.33 | b | 45.31 | d | 46.52 | 57.13 | a | 63.95 | 75.33 | g | 71.44 | g | 57.20 | y | 53.64 | x | 43.06 | n | 33.25 | o | 46.59 | f | ||
1922 | 27.97 | b | 35.68 | q | 38.63 | a | 45.71 | a | 56.42 | a | 67.30 | 71.94 | 68.08 | 57.52 | a | 41.91 | c | 30.02 | 34.36 | t | 50.55 | b | ||||
1923 | 35.86 | i | 33.04 | 37.47 | 48.42 | 56.32 | 63.55 | 70.19 | 64.27 | a | 56.97 | 55.83 | y | 36.83 | f | 29.72 | h | 53.78 | d | |||||||
1924 | 24.44 | e | 30.96 | a | 33.85 | k | 46.45 | a | 57.45 | 69.18 | 70.25 | g | 69.55 | 62.82 | k | 52.32 | c | 39.57 | h | 26.50 | f | 50.05 | e | |||
1925 | 27.17 | p | 37.38 | d | 46.07 | c | 52.74 | c | 60.12 | b | 68.44 | e | 73.68 | 68.43 | d | 62.69 | d | 50.36 | f | 38.50 | k | 30.69 | m | 58.69 | d | |
1926 | 24.40 | b | 40.70 | 40.23 | a | 49.98 | h | 57.02 | b | 63.67 | c | 69.34 | 68.28 | m | 62.08 | j | 52.10 | 40.60 | d | 29.24 | h | 48.51 | d | |||
1927 | 34.00 | u | 37.61 | 40.02 | a | 48.63 | d | 57.50 | j | 61.32 | p | 71.40 | f | 67.76 | n | 61.55 | 48.98 | j | 43.42 | q | 28.86 | j | 46.95 | h | ||
1928 | 31.83 | d | 32.54 | f | 40.11 | i | 41.62 | v | 48.83 | y | ----- | z | 70.31 | w | ----- | z | 58.79 | p | 52.53 | 37.65 | d | 29.26 | j | 40.67 | i | |
1929 | 26.85 | u | 22.85 | r | 39.95 | a | 40.36 | s | ----- | z | ----- | z | 72.17 | y | 67.00 | w | 59.70 | o | 53.20 | h | ----- | z | ----- | z | 39.95 | k |
1930 | ----- | z | 36.45 | f | 37.62 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 48.41 | d | ----- | z | ----- | z | 43.02 | j |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | 39.00 | i | 35.22 | m | 47.52 | c | 54.16 | o | 66.14 | l | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.47 | p | 47.52 | k |
1933 | 21.62 | s | ----- | z | ----- | z | 42.70 | o | 53.82 | 65.45 | a | 71.18 | f | 67.89 | d | 65.19 | n | 52.06 | e | 39.15 | c | 33.95 | i | 55.67 | g | |
1934 | 29.09 | d | 37.77 | 43.87 | a | 49.39 | c | 60.79 | b | 64.52 | e | 73.07 | b | 70.31 | d | 60.22 | c | 50.84 | 38.15 | d | 27.58 | r | 52.55 | a | ||
1935 | 33.13 | d | 31.91 | a | 40.34 | f | 47.72 | c | 51.30 | h | 63.67 | r | 69.38 | e | 67.95 | c | 59.57 | b | 48.38 | f | 35.38 | n | ----- | z | 51.61 | f |
1936 | 28.13 | h | 31.46 | d | 41.02 | j | 48.12 | f | 57.97 | a | 66.67 | f | 69.59 | d | 68.12 | f | 59.09 | b | 47.62 | a | 36.58 | r | 28.43 | x | 53.15 | g |
1937 | 21.50 | g | 33.31 | b | 37.09 | b | 44.32 | m | 54.72 | m | 62.52 | g | 68.68 | c | 69.50 | s | 62.47 | a | 49.86 | b | 40.32 | k | ----- | z | 50.28 | g |
1938 | ----- | z | 36.06 | c | 42.64 | c | 49.04 | b | 56.35 | d | 66.75 | h | 69.44 | g | 69.00 | c | 59.72 | a | 50.19 | b | 32.25 | h | 37.29 | x | 51.86 | e |
1939 | 29.58 | r | 24.60 | d | 44.87 | p | 48.98 | e | 58.56 | g | 67.00 | e | 70.14 | i | 68.46 | f | 62.82 | e | 48.25 | a | 37.10 | d | 29.83 | s | 48.13 | f |
1940 | 30.17 | s | 32.11 | a | 39.43 | j | 48.00 | h | 58.23 | e | 66.52 | 72.35 | d | 68.46 | c | 61.80 | g | 50.38 | r | 36.71 | r | 35.44 | g | 59.53 | g | |
1941 | 31.77 | p | 37.79 | g | 39.33 | e | 45.47 | 58.19 | j | 63.48 | a | 68.48 | c | 68.52 | c | 60.21 | i | 49.86 | j | 39.20 | 33.05 | 51.07 | e | |||
1942 | 31.39 | 30.35 | e | 37.68 | a | 49.34 | k | 55.84 | f | 64.38 | e | 69.78 | d | 68.88 | e | 61.48 | 50.57 | b | 41.30 | 35.75 | i | 50.65 | c | |||
1943 | 33.40 | b | 36.42 | d | 40.04 | f | 50.98 | d | 58.34 | i | 64.60 | j | 70.20 | d | 69.22 | o | 61.90 | e | 47.47 | o | 37.15 | j | 25.97 | b | 46.48 | f |
1944 | 21.65 | 32.14 | 36.25 | a | 44.43 | 52.76 | 60.73 | 68.06 | 68.60 | 60.93 | 51.68 | a | 36.88 | 29.56 | 46.97 | |||||||||||
1945 | ----- | z | 38.46 | 38.76 | 46.87 | c | 53.90 | ----- | z | ----- | z | 69.92 | 63.10 | a | 50.77 | a | 38.17 | 28.62 | a | 47.62 | c | |||||
1946 | 28.03 | 33.94 | b | 41.00 | 53.16 | a | 56.94 | 69.38 | 71.45 | 69.48 | g | 64.13 | d | 48.18 | f | 35.71 | a | 33.88 | e | 48.76 | b | |||||
1947 | 29.66 | c | 37.59 | 41.02 | b | 47.98 | e | ----- | z | ----- | z | 72.02 | 68.52 | e | ----- | z | 52.50 | e | 34.54 | b | 28.05 | 45.76 | c | |||
1948 | 27.65 | d | 33.46 | a | 35.03 | 51.34 | e | 59.65 | k | 64.96 | b | 74.82 | t | 72.43 | h | 62.60 | a | 50.37 | 34.35 | c | 34.15 | a | 43.77 | c | ||
1949 | 23.62 | a | 32.48 | a | 41.64 | b | 48.60 | a | 57.05 | c | 65.54 | d | 70.55 | b | 67.79 | e | 63.89 | c | 49.10 | a | 40.83 | c | 27.00 | e | 49.01 | |
1950 | 29.95 | i | 36.44 | c | 40.86 | c | 50.36 | a | 56.09 | c | 65.52 | c | 68.64 | b | 67.62 | a | 58.67 | c | 55.48 | c | 38.94 | e | 34.21 | e | 52.07 | a |
1951 | 30.30 | c | 33.32 | 40.26 | d | 46.46 | p | 57.63 | 62.50 | f | 73.63 | 68.89 | 62.23 | 50.55 | 35.98 | 30.48 | 48.33 | b | ||||||||
1952 | 33.71 | 32.78 | 35.87 | 47.05 | 56.63 | 68.08 | 70.13 | 71.58 | 61.07 | 50.65 | 33.02 | 27.35 | 48.99 | |||||||||||||
1953 | 37.13 | a | 31.91 | 42.58 | 47.62 | 53.05 | 68.11 | g | 72.34 | 67.98 | 62.82 | 49.55 | a | 39.78 | 26.69 | 48.31 | a | |||||||||
1954 | 31.35 | 39.00 | 38.94 | 52.17 | 58.06 | 66.55 | 72.30 | a | 67.37 | 64.03 | 53.11 | 40.50 | 28.65 | 51.00 | ||||||||||||
1955 | 28.05 | 28.41 | 40.29 | 46.65 | 56.39 | 64.13 | 68.37 | 67.90 | a | 62.23 | 52.39 | 39.10 | 32.77 | 48.89 | ||||||||||||
1956 | 34.61 | 29.00 | 40.02 | 45.77 | 58.18 | 68.73 | 69.37 | 66.73 | 64.02 | b | 52.05 | 33.18 | 28.79 | 49.20 | ||||||||||||
1957 | 34.50 | 41.00 | 40.03 | 45.58 | 54.08 | 65.28 | 71.34 | 68.75 | m | 60.62 | 49.63 | 33.90 | 31.71 | 47.97 | a | |||||||||||
1958 | 27.79 | 37.21 | 36.02 | 45.45 | 58.79 | 68.41 | a | 72.48 | 71.40 | 62.33 | 49.84 | 38.70 | 33.87 | 50.19 | ||||||||||||
1959 | 31.02 | 33.96 | 39.68 | 49.35 | 56.50 | 68.92 | 71.24 | 69.39 | 60.85 | 48.82 | 36.28 | 31.66 | 49.81 | |||||||||||||
1960 | 25.26 | 29.64 | 42.25 | a | 48.95 | 54.94 | 66.90 | 70.05 | 69.68 | 63.12 | 48.16 | 39.88 | 27.94 | 48.90 | ||||||||||||
1961 | 27.06 | 35.48 | 42.67 | a | 47.75 | 57.61 | 67.32 | 70.53 | 67.92 | 59.88 | 49.81 | 36.35 | 30.71 | 49.42 | ||||||||||||
1962 | 28.56 | 38.52 | 36.02 | 51.14 | a | 57.31 | 67.97 | k | 69.50 | 69.21 | 63.67 | 51.06 | 41.28 | 33.60 | a | 49.08 | a | |||||||||
1963 | 29.08 | a | 35.27 | 40.90 | 50.68 | 60.57 | a | 65.52 | 73.71 | 69.02 | a | 63.74 | a | 53.87 | 38.65 | 29.76 | 50.90 | |||||||||
1964 | 24.06 | 24.45 | 37.53 | 46.57 | 57.43 | b | 64.95 | 71.63 | 68.31 | 63.05 | a | 51.65 | 39.70 | 31.87 | 48.43 | |||||||||||
1965 | 34.61 | 32.61 | 38.07 | c | 48.05 | 56.10 | 63.70 | 71.19 | 67.97 | 61.47 | 51.24 | 40.10 | 30.10 | 49.60 | ||||||||||||
1966 | 25.37 | 29.27 | 40.39 | 50.17 | a | 60.45 | 67.03 | 72.81 | 68.65 | 61.53 | 50.57 | a | 41.57 | 30.65 | 49.87 | |||||||||||
1967 | 29.19 | 36.46 | 46.21 | 50.60 | a | 57.26 | 64.35 | 73.05 | 66.94 | 61.26 | c | 52.08 | 41.48 | 27.65 | 50.54 | |||||||||||
1968 | 31.66 | 37.61 | a | 39.74 | 45.77 | 56.71 | 67.25 | 70.11 | 66.24 | 60.32 | 52.32 | 39.28 | a | 26.87 | a | 49.49 | ||||||||||
1969 | 37.00 | 33.77 | 36.84 | 50.38 | 57.06 | 63.65 | 72.84 | 72.07 | a | 63.35 | 50.29 | 36.50 | 33.45 | a | 50.60 | |||||||||||
1970 | 29.42 | 37.23 | 38.02 | 45.57 | 57.37 | 62.55 | 69.82 | a | 70.48 | 58.25 | 43.23 | a | 40.64 | a | 32.34 | 48.74 | ||||||||||
1971 | 28.52 | i | 34.35 | d | 41.26 | j | 47.03 | 55.92 | 65.32 | 72.39 | 66.61 | 60.63 | 48.27 | 39.17 | 29.78 | a | 51.95 | b | ||||||||
1972 | 33.00 | 37.78 | 44.84 | 48.02 | 55.87 | a | 66.87 | 71.48 | 66.52 | 59.75 | 51.15 | 34.17 | a | 30.69 | b | 50.01 | ||||||||||
1973 | 27.77 | 32.80 | a | 39.71 | 41.85 | 53.98 | 63.92 | 68.98 | 67.55 | a | 60.10 | a | 50.66 | 41.94 | c | 33.16 | 48.54 | |||||||||
1974 | 31.73 | g | 31.91 | 45.83 | a | 47.41 | b | 60.31 | 67.64 | a | 67.77 | 64.62 | b | 59.38 | d | 57.57 | x | 39.48 | h | 29.76 | d | 52.74 | c | |||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.45 | 34.07 | 40.14 | 47.90 | 56.45 | 65.63 | 70.59 | 68.15 | 61.37 | 50.33 | 37.77 | 30.27 | 49.33 | |||||||||||||
S.D. | 4.05 | 3.76 | 2.97 | 2.51 | 2.57 | 2.13 | 1.76 | 1.71 | 1.87 | 2.35 | 2.85 | 2.87 | 1.11 | |||||||||||||
SKEW | -0.36 | -0.49 | 0.44 | -0.19 | -1.56 | -0.16 | 0.11 | -0.10 | -0.19 | -1.31 | -0.72 | -0.64 | -0.79 | |||||||||||||
MAX | 37.13 | 41.00 | 46.21 | 53.16 | 60.79 | 69.38 | 73.71 | 72.07 | 65.08 | 55.48 | 41.94 | 35.18 | 51.00 | |||||||||||||
MIN | 18.68 | 24.45 | 35.03 | 41.85 | 45.40 | 60.73 | 67.47 | 64.21 | 56.97 | 41.91 | 30.02 | 21.11 | 46.59 | |||||||||||||
YRS | 40 | 49 | 47 | 49 | 46 | 43 | 47 | 44 | 47 | 46 | 44 | 39 | 22 |