YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1901 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1902 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | 29.77 | a | 29.07 | 32.52 | 34.37 | 39.55 | 44.67 | 45.29 | 43.65 | 42.32 | b | 35.10 | 28.13 | 24.37 | a | 35.73 | ||||||||||
1932 | 25.35 | 22.90 | 32.63 | a | 33.73 | 37.72 | b | 42.73 | 44.32 | 46.13 | 38.27 | 37.42 | 34.90 | 22.68 | 34.90 | |||||||||||
1933 | 26.74 | 23.96 | d | 28.97 | 30.00 | 38.61 | 43.07 | b | 44.77 | 47.13 | a | 42.24 | a | 38.97 | 32.37 | 35.65 | 36.04 | |||||||||
1934 | 33.77 | 31.93 | 35.23 | a | 37.60 | 42.84 | 43.13 | 45.39 | 45.74 | 40.90 | 40.35 | 38.63 | 32.29 | 38.98 | ||||||||||||
1935 | 25.19 | 28.29 | 28.93 | a | 31.13 | 36.30 | d | 43.70 | 46.35 | 43.69 | b | 41.27 | 34.67 | a | 27.72 | a | 27.55 | 34.57 | ||||||||
1936 | 29.65 | 17.10 | 28.23 | 33.90 | 39.65 | 47.23 | 47.23 | 45.55 | 41.13 | 35.57 | a | 25.63 | 32.10 | a | 35.25 | |||||||||||
1937 | 14.68 | 26.46 | 31.13 | 34.55 | a | 37.77 | a | 45.90 | 47.35 | 45.27 | a | 42.83 | 39.32 | 36.23 | 30.35 | 35.99 | ||||||||||
1938 | 28.03 | 27.82 | 29.74 | 34.30 | 37.81 | 44.40 | 48.52 | 43.16 | 45.23 | 38.39 | 30.90 | 27.76 | b | 36.34 | ||||||||||||
1939 | 30.45 | 27.11 | 29.90 | 34.66 | a | 39.29 | 43.33 | 49.45 | 45.60 | a | 43.00 | a | 39.83 | a | 31.40 | 33.37 | a | 37.28 | ||||||||
1940 | 27.74 | 32.03 | 32.10 | 37.00 | 41.10 | 44.37 | 48.16 | 46.35 | 47.30 | 43.00 | 30.67 | 30.06 | 38.32 | |||||||||||||
1941 | 28.97 | 29.61 | 32.19 | 36.50 | 41.87 | 44.97 | 50.10 | 50.35 | 45.90 | 38.97 | 34.17 | 32.13 | 38.81 | |||||||||||||
1942 | 22.10 | 29.36 | 30.26 | 37.47 | 40.77 | 44.40 | 50.65 | 48.87 | 42.63 | 37.52 | 33.00 | 30.48 | 37.29 | |||||||||||||
1943 | 20.77 | 28.54 | 29.42 | 35.97 | a | 37.55 | 43.20 | 46.74 | 46.06 | 42.62 | a | 39.90 | 33.43 | 27.52 | 35.98 | |||||||||||
1944 | 24.90 | 28.55 | 29.26 | 34.93 | 38.94 | 43.70 | 46.19 | 45.74 | 43.73 | 39.26 | 33.10 | 25.96 | c | 36.19 | ||||||||||||
1945 | 30.29 | 30.79 | 29.52 | b | 33.20 | 41.71 | 41.07 | 45.35 | 46.61 | 40.86 | b | 36.04 | d | 32.70 | c | 28.36 | f | 37.10 | a | |||||||
1946 | 28.48 | d | 29.28 | c | 32.42 | 33.07 | b | 40.90 | 43.77 | 47.52 | 45.90 | 42.00 | 34.74 | 28.66 | a | 30.94 | 36.47 | |||||||||
1947 | 23.68 | c | 28.68 | 32.29 | 35.97 | 40.39 | 43.53 | 47.45 | 44.26 | 41.68 | b | 41.58 | 33.48 | a | 31.48 | 37.04 | ||||||||||
1948 | 25.90 | a | 25.71 | a | 28.77 | 34.00 | 39.87 | a | 46.23 | 44.55 | 46.94 | 39.27 | 34.77 | 30.70 | 25.16 | 35.16 | ||||||||||
1949 | 9.45 | 25.14 | 29.77 | e | 32.21 | a | 40.03 | 40.47 | 45.77 | 46.84 | 43.40 | 30.32 | 34.77 | 28.61 | 33.90 | |||||||||||
1950 | 12.35 | 25.26 | a | 29.55 | 29.53 | 32.42 | 45.37 | 45.61 | 45.81 | 40.17 | 39.03 | 32.13 | 33.10 | 34.19 | ||||||||||||
1951 | 26.94 | 26.61 | 26.87 | 30.00 | 38.06 | 42.17 | 45.32 | 44.03 | a | ----- | z | 36.90 | 30.93 | 24.94 | 33.89 | a | ||||||||||
1952 | 22.52 | 25.76 | 28.71 | 31.40 | 36.81 | 43.93 | 45.29 | 46.39 | 40.67 | 37.13 | 24.83 | 29.61 | 34.42 | |||||||||||||
1953 | 35.32 | 29.57 | 30.29 | 32.80 | 38.32 | 43.03 | 44.39 | 46.61 | 42.13 | 36.84 | 36.00 | 32.13 | a | 37.29 | ||||||||||||
1954 | 26.87 | 26.93 | 25.39 | 31.00 | 37.94 | 42.53 | 43.39 | 43.48 | 40.90 | 34.42 | 39.40 | 27.83 | s | 35.66 | a | |||||||||||
1955 | 28.45 | 27.57 | 27.72 | f | 31.23 | 36.10 | 44.17 | 45.45 | 42.84 | 40.63 | 38.29 | 28.83 | 25.77 | 35.39 | a | |||||||||||
1956 | 26.77 | 22.59 | 28.29 | 30.63 | 39.61 | 43.73 | 48.87 | 48.35 | 41.23 | 35.29 | 28.13 | 27.48 | 35.08 | |||||||||||||
1957 | 16.45 | 27.14 | 31.39 | 34.30 | 43.39 | 46.00 | c | 47.20 | a | 45.87 | 45.80 | 37.69 | b | 29.67 | 31.13 | 36.34 | ||||||||||
1958 | 30.28 | b | 36.00 | f | 30.07 | c | 34.76 | a | 43.37 | a | 51.60 | e | 52.13 | a | 50.83 | a | 44.48 | a | 35.38 | g | 33.54 | d | 33.50 | a | 40.46 | b |
1959 | 28.97 | 30.78 | a | 30.89 | d | 33.90 | a | 37.04 | e | 47.79 | a | 50.68 | c | 46.94 | 47.27 | s | ----- | z | 29.07 | a | 28.77 | a | 36.48 | b | ||
1960 | 24.38 | e | 28.47 | j | 27.38 | j | 34.33 | l | 38.28 | m | 44.84 | e | 48.73 | a | 47.43 | a | 41.82 | b | 37.65 | k | 32.83 | l | 25.26 | l | 41.44 | g |
1961 | 28.04 | g | 33.37 | i | 33.17 | h | 33.70 | j | 39.78 | d | 46.83 | 49.10 | 50.16 | 38.38 | a | 36.78 | h | 26.65 | j | 27.36 | i | 44.85 | g | |||
1962 | 23.48 | j | 27.33 | j | 27.54 | g | 35.14 | h | 39.15 | k | 42.67 | f | 46.87 | a | 48.47 | a | 43.36 | b | 37.39 | h | 34.11 | k | 30.61 | m | 46.23 | i |
1963 | 21.00 | j | 29.89 | i | 30.43 | j | 34.05 | h | 38.00 | i | 46.19 | d | 46.16 | 48.00 | 47.73 | 40.29 | g | 35.05 | i | 25.95 | k | 47.02 | h | |||
1964 | 31.00 | j | 25.53 | j | 30.27 | i | 32.23 | h | 35.75 | k | 44.18 | h | 50.00 | 46.23 | 39.93 | 36.00 | h | 30.37 | k | 25.73 | i | 45.39 | i | |||
1965 | 28.30 | k | ----- | z | 25.09 | h | 33.59 | h | 36.40 | k | 42.17 | g | 47.37 | a | 48.42 | 37.77 | 37.86 | i | 36.40 | j | 27.00 | j | 44.52 | i | ||
1966 | 26.76 | j | ----- | z | 27.22 | h | ----- | z | 37.48 | j | 43.30 | c | 48.03 | 46.23 | 43.03 | 34.68 | f | 33.00 | k | 32.05 | i | 45.15 | h | |||
1967 | 31.25 | k | 28.74 | i | 30.91 | i | 31.35 | j | 36.36 | i | 48.00 | d | 46.77 | 48.42 | 44.07 | a | 38.43 | j | 30.90 | j | 25.30 | k | 46.82 | h | ||
1968 | 26.23 | i | 28.59 | b | 33.23 | 31.46 | b | 39.77 | 43.36 | e | 47.87 | 47.32 | 42.30 | g | 35.14 | i | 34.37 | k | 29.20 | k | 38.80 | e | ||||
1969 | 22.77 | i | 29.06 | j | 26.71 | n | 33.43 | 41.77 | a | 51.53 | 46.48 | 46.00 | 46.63 | 37.71 | c | 33.67 | 29.72 | f | 42.15 | d | ||||||
1970 | 28.36 | f | 32.83 | d | 31.23 | e | 34.14 | p | 39.54 | e | 48.13 | 50.62 | b | 45.73 | a | 40.46 | d | 33.97 | a | 31.43 | 26.16 | 38.01 | b | |||
1971 | 26.87 | 29.31 | b | 29.19 | 32.42 | d | 40.59 | d | 43.86 | a | 49.07 | b | 49.94 | 40.63 | 34.77 | 33.17 | 28.04 | c | 36.49 | |||||||
1972 | 25.54 | c | 28.93 | b | 33.34 | b | 33.44 | c | 40.45 | 44.71 | b | 47.68 | 48.62 | g | 40.40 | e | 33.08 | g | 33.57 | i | 19.58 | l | 36.81 | d | ||
1973 | 19.56 | m | 19.89 | i | 31.68 | 32.14 | h | 40.15 | e | 46.62 | a | ----- | z | 43.85 | k | 44.00 | g | 39.47 | p | 30.14 | i | 32.50 | o | 39.48 | i | |
1974 | 21.71 | c | 29.46 | 30.16 | 36.57 | 36.81 | e | 46.57 | 48.90 | 46.55 | k | 40.46 | b | 32.81 | 30.28 | a | 32.90 | 35.15 | a | |||||||
1975 | 27.23 | 26.54 | 28.97 | 30.23 | 35.77 | 43.17 | 50.52 | 48.47 | a | 43.63 | 40.97 | 31.17 | 31.75 | c | 36.53 | |||||||||||
1976 | 32.03 | a | 31.03 | 29.52 | 35.23 | h | 37.13 | 39.50 | 49.20 | a | 54.39 | 50.97 | 43.03 | 30.77 | 28.40 | k | 39.76 | b | ||||||||
1977 | 21.46 | e | 29.46 | 29.87 | 32.79 | a | 36.45 | 43.54 | b | 48.90 | 55.29 | j | ----- | z | ----- | z | ----- | z | ----- | z | 34.64 | e | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 25.56 | 27.80 | 30.32 | 33.46 | 39.10 | 44.64 | 47.43 | 46.75 | 42.43 | 37.41 | 31.82 | 29.48 | 36.18 | |||||||||||||
S.D. | 5.57 | 3.03 | 1.92 | 2.22 | 2.27 | 2.42 | 2.05 | 2.26 | 2.69 | 2.89 | 3.22 | 3.19 | 1.35 | |||||||||||||
SKEW | -1.08 | -1.25 | 0.11 | 0.06 | -0.35 | 0.85 | 0.18 | 0.87 | 0.92 | -0.10 | 0.15 | -0.24 | 0.34 | |||||||||||||
MAX | 35.32 | 32.83 | 35.23 | 37.60 | 43.39 | 51.60 | 52.13 | 54.39 | 50.97 | 43.03 | 39.40 | 35.65 | 38.98 | |||||||||||||
MIN | 9.45 | 17.10 | 25.39 | 29.53 | 32.42 | 39.50 | 43.39 | 42.84 | 37.77 | 30.32 | 24.83 | 22.68 | 33.90 | |||||||||||||
YRS | 36 | 36 | 37 | 36 | 40 | 44 | 46 | 43 | 42 | 33 | 35 | 31 | 25 |