YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1906 | ----- | z | ----- | z | 24.04 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.57 | w | 40.95 | k | 37.43 | 30.81 | d | 34.12 | j | |
1927 | 30.00 | 29.71 | 30.93 | a | 32.63 | 37.73 | a | 47.60 | 49.17 | a | 49.39 | 44.67 | 39.77 | 34.73 | d | 27.81 | d | 37.85 | ||||||||
1928 | 30.50 | a | 31.04 | a | ----- | z | ----- | z | ----- | z | ----- | z | 48.70 | h | 45.44 | f | 42.52 | e | 38.38 | e | 33.57 | g | 27.74 | l | 35.61 | h |
1929 | 21.95 | i | 24.16 | i | 30.72 | m | 29.96 | e | 36.17 | m | 43.77 | h | ----- | z | ----- | z | 51.18 | s | ----- | z | 30.57 | g | 31.30 | k | 29.96 | k |
1930 | 23.00 | r | 30.60 | r | 30.93 | q | 33.78 | l | 36.75 | g | 42.35 | g | 46.12 | f | 47.62 | b | 45.13 | g | 36.14 | x | 31.06 | n | 30.33 | v | 47.62 | k |
1931 | 33.05 | k | 29.58 | p | 33.85 | r | 34.06 | n | 39.48 | f | 46.36 | h | 47.10 | b | 44.73 | a | 43.92 | d | 37.68 | f | 36.23 | q | 30.75 | c | 41.63 | h |
1932 | 29.24 | j | 28.32 | d | 34.08 | e | 36.40 | t | 39.91 | h | 45.05 | j | 45.96 | c | 48.95 | i | 43.61 | b | 41.03 | b | 36.33 | r | 27.70 | d | 36.78 | f |
1933 | 29.27 | i | 27.95 | i | 29.83 | s | 32.70 | c | 38.14 | c | 42.36 | e | 45.87 | a | 49.35 | 43.36 | b | 40.53 | a | 34.17 | f | 35.33 | d | 40.96 | d | |
1934 | 33.81 | d | 34.42 | i | 37.00 | b | 42.25 | n | 42.74 | 44.73 | 47.00 | c | 48.52 | b | 43.83 | a | 41.03 | a | 36.00 | t | 33.54 | e | 41.36 | c | ||
1935 | 30.55 | i | 32.28 | j | 29.45 | i | 31.71 | p | 38.47 | a | 45.20 | 46.93 | b | 46.86 | b | 45.54 | b | 37.65 | 27.11 | k | 33.10 | j | 43.44 | f | ||
1936 | 31.32 | l | 24.62 | m | 28.76 | n | ----- | z | 41.86 | b | 46.77 | 48.00 | 47.84 | 42.33 | c | 42.59 | i | 32.00 | f | 27.81 | j | 45.36 | g | |||
1937 | 9.05 | k | 12.78 | j | ----- | z | 35.00 | r | 39.33 | d | 45.03 | 47.97 | 46.93 | a | 45.53 | 42.06 | 36.33 | c | 32.41 | b | 41.95 | d | ||||
1938 | 31.48 | j | ----- | z | 28.86 | q | 35.80 | e | 39.92 | e | 44.63 | c | 48.89 | c | 45.04 | c | 47.78 | c | 40.11 | c | 32.56 | c | 31.83 | b | 40.73 | c |
1939 | 33.21 | b | 29.11 | 31.03 | 36.30 | 40.00 | ----- | z | ----- | z | ----- | z | 42.10 | a | 37.19 | 35.93 | c | 34.62 | o | 35.61 | d | |||||
1940 | 32.67 | a | ----- | z | ----- | z | 38.25 | n | 42.25 | c | 45.28 | a | 49.07 | a | 47.71 | 48.13 | 43.31 | b | ----- | z | 31.30 | h | 44.06 | e | ||
1941 | 32.47 | a | 33.52 | a | 35.55 | b | 38.18 | b | 41.32 | 45.00 | a | 51.68 | 49.48 | b | 44.17 | a | 39.90 | 36.25 | b | 31.33 | s | 40.68 | a | |||
1942 | 28.94 | 30.11 | a | 31.39 | 36.39 | b | 40.39 | 43.44 | e | 50.77 | 50.65 | 44.87 | 39.06 | 33.08 | d | 31.83 | b | 38.41 | ||||||||
1943 | 24.28 | b | 30.86 | 30.06 | 36.17 | 37.75 | c | 41.93 | 47.29 | 46.06 | 44.72 | e | 39.70 | a | 35.07 | 31.00 | h | 37.63 | a | |||||||
1944 | 32.50 | q | 31.45 | r | 30.90 | 35.43 | b | 38.93 | d | 44.26 | c | 47.87 | 47.80 | a | 45.89 | c | 40.71 | c | 33.17 | a | 30.15 | d | 39.51 | b | ||
1945 | 31.24 | b | 32.07 | 31.58 | 32.85 | d | 41.97 | 43.39 | b | 48.27 | a | 48.17 | b | 43.63 | c | 39.72 | b | 33.00 | 31.17 | b | 38.09 | |||||
1946 | 30.72 | b | 30.43 | 32.21 | b | 35.48 | g | 41.56 | m | 43.30 | g | 46.35 | h | 47.08 | g | 42.78 | c | 35.97 | b | 31.36 | b | 31.11 | c | 33.51 | e | |
1947 | 26.29 | c | 31.77 | b | 34.85 | e | 35.53 | k | 41.80 | f | 44.09 | h | 47.12 | e | 45.97 | 45.13 | 40.70 | d | 33.79 | a | 32.90 | b | 37.61 | c | ||
1948 | 29.03 | 28.55 | 30.23 | r | 33.74 | c | 40.13 | 48.04 | e | 44.90 | b | 48.72 | f | 44.17 | r | 37.19 | 32.23 | 28.74 | 35.84 | c | ||||||
1949 | 19.74 | 26.11 | 31.83 | a | 34.52 | c | 40.62 | b | 40.79 | f | 45.33 | d | 46.48 | 46.03 | 35.81 | 36.03 | 30.67 | p | 36.25 | b | ||||||
1950 | 18.64 | f | 31.15 | o | 31.39 | 33.30 | j | 37.19 | e | 44.32 | k | 47.38 | b | 49.20 | a | 44.27 | 39.52 | 34.47 | 36.90 | 40.04 | d | |||||
1951 | 28.39 | 30.61 | 28.35 | 33.96 | c | 39.74 | 44.87 | 47.94 | 46.23 | 45.70 | 40.48 | 34.03 | 28.60 | a | 37.41 | |||||||||||
1952 | 27.00 | d | 30.11 | b | 30.85 | d | 34.33 | f | 40.28 | b | 43.04 | f | 47.90 | 49.27 | a | 46.27 | 42.16 | 30.10 | 31.33 | a | 37.53 | b | ||||
1953 | 35.81 | 31.75 | 32.03 | 34.23 | d | ----- | z | 42.77 | h | 48.61 | 48.81 | 45.40 | 40.79 | b | 36.76 | e | ----- | z | 39.35 | c | ||||||
1954 | ----- | z | ----- | z | ----- | z | 33.89 | k | 39.77 | 42.73 | 45.61 | 47.68 | 45.83 | 38.65 | 39.93 | 31.07 | a | 41.41 | d | |||||||
1955 | 30.62 | b | ----- | z | 30.04 | g | 31.33 | f | 36.58 | 43.83 | 46.68 | 44.55 | 43.57 | 39.26 | 28.30 | c | ----- | z | 39.17 | d | ||||||
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.29 | p | 48.93 | c | 46.88 | n | 43.15 | j | 39.32 | 31.95 | h | ----- | z | 44.13 | j | |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | 43.21 | c | 46.53 | 46.48 | 46.39 | 46.20 | 38.92 | e | 32.14 | i | ----- | z | 44.62 | f | ||||
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1961 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.90 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.90 | k |
1962 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 45.50 | t | ----- | z | 49.39 | 45.50 | 40.35 | 36.37 | 34.32 | i | 42.90 | h | ||||
1963 | 20.57 | x | 35.30 | e | 31.50 | e | 35.29 | f | 39.55 | b | 45.07 | 47.32 | 48.68 | 49.07 | b | 42.48 | ----- | z | ----- | z | 42.37 | d | ||||
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.27 | 47.61 | 47.23 | 44.07 | 41.06 | ----- | z | ----- | z | 44.85 | g | |||||
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.10 | 49.71 | 49.67 | d | 43.53 | 42.84 | 41.00 | p | ----- | z | 45.97 | g | ||||
1966 | ----- | z | ----- | z | ----- | z | ----- | z | 38.16 | 44.23 | 47.97 | 48.45 | 47.07 | c | 38.97 | 35.94 | n | ----- | z | 44.14 | f | |||||
1967 | ----- | z | ----- | z | ----- | z | ----- | z | 39.91 | i | 44.62 | q | 47.72 | b | 51.96 | d | 47.29 | b | 40.77 | ----- | z | ----- | z | 46.94 | h | |
1968 | ----- | z | ----- | z | ----- | z | 32.82 | h | 39.68 | f | 44.37 | c | 45.73 | a | 46.07 | b | 45.31 | n | ----- | z | 33.50 | l | ----- | z | 45.39 | i |
1969 | ----- | z | ----- | z | ----- | z | 34.14 | p | 40.36 | c | 48.64 | e | 45.73 | e | 43.77 | a | 44.91 | g | 36.00 | ----- | z | ----- | z | 42.90 | g | |
1970 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.90 | 49.39 | 47.70 | d | 42.96 | g | 36.24 | j | 33.96 | f | ----- | z | 48.00 | i | ||
1971 | 28.67 | g | ----- | z | 27.80 | f | 33.23 | d | 38.04 | e | 41.47 | 47.68 | c | 50.82 | c | 41.58 | d | 35.19 | e | 32.88 | f | 28.25 | g | 41.14 | e | |
1972 | 24.82 | i | 30.59 | l | 34.40 | p | 31.10 | i | 40.30 | a | 43.71 | f | 45.11 | d | 47.83 | g | 41.03 | 33.90 | 33.57 | ----- | z | 38.78 | g | |||
1973 | 27.37 | l | 30.76 | k | 31.81 | o | 33.62 | n | 39.32 | i | 41.86 | b | 48.66 | b | 45.20 | f | 44.11 | c | 38.10 | ----- | z | ----- | z | 43.18 | h | |
1974 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 29.69 | 30.59 | 32.09 | 34.41 | 39.81 | 44.69 | 47.59 | 47.78 | 44.75 | 39.42 | 34.29 | 31.33 | 37.94 | |||||||||||||
S.D. | 3.86 | 2.14 | 2.13 | 2.04 | 1.72 | 1.85 | 1.52 | 1.88 | 1.84 | 2.19 | 2.59 | 2.40 | 0.42 | |||||||||||||
SKEW | -0.91 | 0.16 | 0.80 | -0.23 | 0.13 | 0.30 | 0.41 | -0.07 | 0.20 | -0.57 | -0.21 | 0.53 | -0.21 | |||||||||||||
MAX | 35.81 | 35.30 | 37.00 | 38.18 | 43.21 | 48.64 | 51.68 | 51.96 | 49.07 | 43.31 | 39.93 | 36.90 | 38.41 | |||||||||||||
MIN | 19.74 | 26.11 | 28.35 | 29.96 | 36.58 | 41.47 | 44.90 | 43.77 | 41.03 | 33.90 | 28.30 | 27.70 | 37.41 | |||||||||||||
YRS | 17 | 16 | 17 | 15 | 27 | 27 | 38 | 34 | 36 | 37 | 22 | 18 | 4 |