YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 41.65 | k | 39.52 | a | 43.90 | 60.28 | 60.16 | 56.34 | 54.76 | a | 46.62 | b | 32.23 | 23.76 | b | 46.40 | c | |||||
1919 | 25.06 | d | 30.36 | 35.53 | 41.15 | 46.77 | 51.70 | 62.23 | a | 59.32 | 49.85 | 37.12 | a | 32.43 | 21.03 | b | 41.05 | |||||||||
1920 | 30.98 | 34.95 | r | 32.84 | 37.23 | 43.50 | c | 53.00 | a | 59.85 | 60.77 | a | 51.12 | 41.15 | 31.31 | a | 26.97 | 42.61 | a | |||||||
1921 | 26.47 | 33.16 | 36.62 | a | 39.58 | 46.37 | 54.73 | 59.15 | 58.05 | b | 47.05 | 46.05 | a | 39.18 | m | 25.47 | a | 42.97 | a | |||||||
1922 | 13.53 | 23.02 | e | 28.61 | i | 35.74 | a | 46.68 | n | 57.32 | 61.58 | a | 58.29 | 53.00 | 44.28 | a | 29.57 | 26.05 | a | 40.24 | b | |||||
1923 | 28.90 | b | 23.09 | a | 32.82 | 39.80 | 47.03 | 50.07 | 60.56 | 59.97 | b | 53.65 | 40.83 | a | 33.52 | 25.88 | b | 41.34 | ||||||||
1924 | ----- | z | 37.14 | 31.39 | 40.38 | 51.92 | 55.20 | 60.21 | 58.13 | 51.33 | a | 40.17 | a | 31.84 | a | 18.95 | c | 43.33 | a | |||||||
1925 | 31.02 | a | 32.93 | 34.35 | 39.59 | a | 47.74 | b | 53.40 | d | 63.55 | a | 57.22 | a | 49.67 | 39.98 | g | 34.38 | b | 29.89 | i | 44.38 | b | |||
1926 | 27.72 | a | 36.46 | 37.93 | a | 46.18 | 46.40 | 58.17 | 62.15 | 58.69 | 44.57 | a | 43.85 | 38.41 | b | 28.25 | a | 44.07 | ||||||||
1927 | 30.09 | d | 30.96 | b | 34.53 | 39.35 | f | 43.98 | a | 54.52 | g | 59.37 | 56.48 | a | 47.71 | a | 45.03 | a | 37.71 | b | 22.13 | h | 42.88 | c | ||
1928 | 30.07 | a | 31.40 | i | 38.92 | f | 40.89 | g | 52.23 | 54.93 | g | 62.29 | b | 57.48 | c | 52.09 | c | 42.08 | g | 39.13 | o | 25.84 | f | 50.83 | g | |
1929 | 23.27 | 21.09 | e | 36.46 | d | 32.53 | n | 46.57 | b | 50.58 | d | 60.21 | g | 60.58 | g | 47.78 | 46.60 | g | 32.10 | j | 35.61 | 37.34 | e | |||
1930 | 14.03 | a | 36.83 | b | 37.79 | 43.57 | 46.47 | b | 51.65 | d | 61.19 | 60.08 | a | 51.47 | k | 45.54 | s | ----- | z | 21.27 | c | 41.43 | c | |||
1931 | 30.00 | b | 31.68 | 36.54 | g | 37.96 | c | 51.55 | a | 51.04 | e | 65.31 | 60.98 | f | 49.02 | g | 41.64 | c | 31.00 | c | 24.29 | 40.50 | c | |||
1932 | 23.18 | 26.38 | d | 38.29 | 41.00 | l | 47.24 | 55.72 | 57.90 | 57.40 | 56.39 | p | 45.24 | b | 39.31 | a | 21.00 | c | 41.17 | b | ||||||
1933 | 24.86 | f | 25.46 | 35.45 | 40.82 | 43.18 | 55.62 | 62.68 | 60.48 | 49.18 | 46.53 | 34.62 | 37.12 | a | 44.65 | a | ||||||||||
1934 | 35.09 | b | 38.10 | r | 42.50 | 47.23 | 52.32 | 50.85 | j | 60.72 | a | 61.58 | 52.75 | 46.17 | b | 38.80 | 28.89 | 46.60 | b | |||||||
1935 | 25.88 | c | 29.80 | a | 32.24 | 40.52 | a | 47.23 | 54.56 | d | 60.68 | ----- | z | 54.88 | ----- | z | 26.53 | 27.15 | 39.95 | b | ||||||
1936 | 27.72 | b | 29.91 | a | 36.08 | 44.98 | 49.90 | 55.42 | 62.95 | 59.52 | a | 50.63 | 44.59 | b | 28.82 | b | 17.06 | w | 44.59 | a | ||||||
1937 | ----- | z | 26.57 | 34.89 | c | 38.81 | a | 49.52 | 55.12 | 61.32 | 56.79 | 52.92 | 45.60 | 35.88 | a | 33.58 | a | 44.64 | a | |||||||
1938 | 28.35 | 26.72 | a | 33.40 | 43.15 | 47.98 | 55.38 | a | 63.18 | 57.94 | 55.86 | a | 43.47 | 30.82 | 29.41 | b | 42.97 | |||||||||
1939 | 27.56 | 28.60 | b | 38.35 | a | 47.62 | m | 51.25 | g | 52.57 | ----- | z | 62.06 | 53.74 | a | 44.79 | 35.36 | a | 33.28 | a | 41.81 | c | ||||
1940 | 29.94 | 35.26 | b | 39.15 | a | 42.82 | 51.53 | a | 58.53 | a | ----- | z | 61.15 | 52.04 | b | 48.08 | g | 32.37 | d | 28.26 | 43.10 | b | ||||
1941 | 29.85 | 33.73 | 37.15 | a | 41.10 | 47.16 | b | 52.58 | 61.95 | 59.55 | 48.59 | a | 43.08 | 37.70 | 29.23 | 43.47 | ||||||||||
1942 | 22.80 | d | 28.14 | g | 35.21 | 42.08 | 44.88 | b | 52.00 | 62.82 | 61.21 | 55.36 | e | 45.28 | b | 37.26 | g | 32.65 | a | 45.43 | b | |||||
1943 | ----- | z | 29.69 | a | 35.90 | 44.85 | 44.29 | 49.88 | 60.29 | 57.97 | 57.73 | 53.45 | u | 35.96 | f | 28.08 | 45.41 | c | ||||||||
1944 | 21.71 | 30.98 | a | 35.16 | 39.92 | 48.18 | 52.19 | a | 59.73 | 59.05 | t | 53.57 | 50.15 | d | 32.42 | 28.77 | 41.16 | a | ||||||||
1945 | 29.73 | 33.34 | 32.31 | ----- | z | 48.81 | 52.23 | 61.87 | 60.12 | a | 51.37 | 45.50 | 34.22 | 28.90 | e | 43.49 | a | |||||||||
1946 | 26.88 | j | 28.86 | 36.70 | a | 41.57 | 47.50 | 51.80 | 60.15 | d | 58.65 | 49.57 | b | 37.23 | a | 33.62 | a | 31.90 | a | 43.41 | a | |||||
1947 | 24.15 | a | ----- | z | 36.82 | 41.97 | 51.69 | 52.12 | a | 58.44 | 56.65 | 53.43 | b | 47.05 | 34.19 | a | 30.58 | 44.28 | a | |||||||
1948 | 29.98 | a | 27.46 | a | 31.85 | 35.98 | 44.77 | 56.17 | ----- | z | 55.40 | a | 50.58 | 42.42 | 34.06 | d | 22.02 | 39.15 | a | |||||||
1949 | 12.43 | a | 27.20 | a | 36.07 | j | 42.53 | ----- | z | 52.87 | o | 59.79 | b | 58.92 | 52.71 | i | 38.84 | f | 41.85 | 29.02 | 38.82 | e | ||||
1950 | 24.73 | 31.96 | 35.16 | 38.38 | a | 45.85 | 52.55 | 59.68 | 60.40 | 53.56 | d | 47.02 | f | 41.25 | 38.89 | 43.86 | a | |||||||||
1951 | 30.12 | r | ----- | z | ----- | z | 46.10 | i | 48.79 | j | 54.32 | 60.50 | 58.53 | 52.37 | 41.45 | 33.08 | d | 23.35 | g | 50.04 | f | |||||
1952 | 24.21 | g | 27.93 | 29.92 | 44.32 | 48.97 | 52.42 | 61.82 | 59.52 | a | 54.60 | 46.71 | 26.80 | 24.87 | 43.44 | a | ||||||||||
1953 | 35.52 | 33.39 | 33.45 | 37.28 | 41.72 | a | 46.93 | 58.68 | 56.44 | ----- | z | ----- | z | ----- | z | ----- | z | 42.93 | d | |||||||
1954 | ----- | z | 33.62 | 30.94 | 40.18 | 47.72 | a | 49.50 | c | ----- | z | 53.00 | 48.23 | 40.87 | 37.71 | a | 25.05 | 40.68 | b | |||||||
1955 | 20.09 | b | 28.05 | 32.14 | b | 32.83 | c | 43.95 | 55.27 | 54.95 | 57.11 | 54.00 | i | ----- | z | 31.71 | f | 28.55 | 39.22 | c | ||||||
1956 | ----- | z | ----- | z | ----- | z | 45.38 | j | 46.43 | p | 52.80 | 61.10 | 56.45 | 51.90 | 42.47 | a | 33.32 | 28.03 | a | 46.58 | e | |||||
1957 | 18.53 | 30.22 | a | 39.02 | c | 40.30 | 50.11 | 57.42 | k | 57.60 | 55.39 | ----- | z | ----- | z | ----- | z | ----- | z | 41.60 | e | |||||
1958 | ----- | z | ----- | z | ----- | z | 37.78 | 53.18 | 54.32 | 59.76 | 62.29 | 49.87 | 45.70 | a | 36.12 | b | 33.52 | a | 48.06 | c | ||||||
1959 | 32.75 | a | 31.14 | 35.68 | 40.05 | 42.69 | 54.32 | 62.59 | c | 57.21 | 50.53 | a | 44.55 | a | 35.83 | 25.94 | 42.77 | |||||||||
1960 | 21.71 | g | 28.82 | a | 37.98 | 41.25 | 42.19 | 53.87 | 66.11 | d | 56.42 | a | 54.42 | 45.53 | 32.92 | d | 26.95 | 44.22 | a | |||||||
1961 | 29.87 | a | 33.78 | j | 33.16 | 40.31 | i | 44.00 | q | 59.32 | 61.90 | a | 63.11 | h | 43.60 | y | 42.76 | j | ----- | z | ----- | z | 46.06 | h | ||
1962 | ----- | z | ----- | z | 33.25 | a | 43.38 | b | 45.14 | f | 54.10 | j | 60.08 | l | 58.48 | d | 56.00 | c | 44.48 | h | 37.74 | c | 30.96 | g | 45.77 | g |
1963 | 26.18 | f | 39.87 | m | 36.16 | f | 39.58 | f | 50.62 | k | 53.15 | m | 57.32 | l | 59.91 | d | 57.45 | j | 46.38 | f | 37.70 | o | 32.74 | j | 59.91 | k |
1964 | 26.71 | e | 31.41 | f | 32.06 | o | 37.90 | e | 43.53 | 52.16 | e | ----- | z | 56.67 | d | 48.65 | c | 45.82 | 29.43 | g | 27.67 | d | 42.39 | d | ||
1965 | 29.18 | a | 33.54 | 33.24 | b | 41.87 | 46.27 | 54.69 | c | 59.45 | a | 58.19 | 46.68 | 45.94 | 34.93 | 24.89 | 42.41 | |||||||||
1966 | 28.15 | g | 27.56 | a | 34.21 | 41.29 | a | 48.35 | a | 51.19 | c | 56.69 | 59.03 | b | 53.48 | f | 43.18 | 36.88 | a | 30.68 | a | 42.91 | b | |||
1967 | 31.34 | b | 33.66 | 32.72 | a | 33.12 | a | 48.36 | j | 55.59 | a | 62.47 | 63.73 | 56.00 | c | 46.27 | c | 36.45 | b | 24.94 | 43.30 | a | ||||
1968 | 28.02 | 35.88 | 37.34 | f | 37.90 | a | ----- | z | 58.54 | p | 62.82 | 57.61 | c | 52.23 | 43.41 | c | 33.77 | b | 25.05 | a | 41.85 | c | ||||
1969 | 25.73 | c | 25.75 | 32.27 | 39.94 | e | 49.47 | a | 55.09 | b | 59.60 | 57.56 | 53.15 | 38.02 | 34.33 | 30.54 | d | 41.79 | ||||||||
1970 | 28.15 | 34.05 | 32.76 | b | 33.90 | a | 46.44 | 58.38 | e | 60.57 | d | 58.33 | d | 47.65 | 39.75 | c | 36.00 | h | 19.77 | r | 44.00 | b | ||||
1971 | 29.38 | c | 31.20 | 30.34 | b | 37.65 | g | 47.79 | 51.48 | 61.16 | i | 62.94 | g | 48.48 | 40.52 | 34.87 | 24.87 | a | 37.66 | c | ||||||
1972 | 26.50 | d | 32.45 | 39.63 | 38.10 | 49.53 | a | 56.83 | 62.15 | e | 61.08 | 48.52 | d | 42.53 | 34.71 | f | 18.91 | b | 43.29 | a | ||||||
1973 | 25.77 | c | 33.33 | b | 34.05 | a | 40.85 | d | 50.35 | a | ----- | z | ----- | z | ----- | z | 54.59 | a | 42.60 | a | 35.63 | d | 32.41 | d | 38.84 | c |
1974 | 24.38 | a | 31.70 | a | 35.80 | a | 39.63 | d | 44.66 | c | 58.08 | f | 64.69 | r | 57.40 | g | 55.36 | e | 41.72 | b | 35.40 | 24.73 | e | 37.04 | c | |
1975 | 28.08 | e | 29.16 | 32.29 | 33.67 | d | 46.72 | a | 54.09 | b | 64.55 | 56.70 | h | 53.62 | 44.29 | e | 31.14 | h | 33.06 | 41.95 | b | |||||
1976 | 32.31 | e | 31.66 | a | 33.14 | f | 38.41 | b | 48.56 | e | 50.64 | l | 62.80 | f | 57.68 | c | 54.48 | f | 43.59 | b | 36.31 | c | 25.17 | g | 41.22 | e |
1977 | 22.78 | b | 32.93 | a | 33.22 | a | 43.84 | b | 43.02 | c | 59.08 | 60.61 | 61.91 | i | 50.90 | 44.79 | 34.16 | b | 33.74 | l | 42.53 | b | ||||
1978 | 32.89 | ----- | z | 41.35 | 38.31 | f | 45.69 | 54.90 | 62.08 | 60.11 | 48.93 | 45.42 | e | 26.02 | e | 21.85 | 43.93 | b | ||||||||
1979 | 19.76 | 32.06 | a | 38.79 | b | 40.68 | 50.33 | b | ----- | z | 61.15 | a | ----- | z | ----- | z | 47.60 | 31.38 | 31.74 | 39.28 | c | |||||
1980 | 27.81 | 36.72 | b | 34.98 | f | 41.64 | b | 47.95 | a | 51.59 | c | ----- | z | 55.10 | f | 54.38 | d | 44.90 | 35.62 | a | 31.92 | 41.39 | c | |||
1981 | 30.77 | e | 31.71 | 37.79 | g | 44.02 | a | 47.08 | ----- | z | 56.63 | 62.00 | 55.34 | e | 43.02 | e | 34.43 | 31.12 | b | 43.61 | b | |||||
1982 | 23.86 | b | 29.85 | b | 34.63 | 35.20 | e | 47.16 | c | 54.26 | g | 59.39 | v | 59.21 | e | 50.15 | j | 42.05 | b | 28.33 | c | 26.13 | h | 37.54 | d | |
1983 | 32.44 | 34.29 | 37.84 | c | 36.31 | l | 51.86 | i | 52.80 | e | 59.08 | f | 62.68 | f | 49.56 | u | 44.50 | g | 35.33 | f | 28.67 | g | 39.34 | h | ||
1984 | 26.02 | c | 31.70 | b | 38.92 | a | 38.80 | c | 46.88 | k | 50.80 | c | 62.57 | c | 59.91 | i | 50.89 | c | 41.81 | j | 31.98 | d | 22.47 | p | 41.46 | d |
1985 | 22.48 | f | 29.27 | b | 32.44 | e | 44.25 | f | 49.96 | h | 54.96 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 30.86 | j |
1986 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 58.69 | a | 55.28 | a | 61.74 | b | 46.81 | d | 42.81 | 35.71 | b | 25.78 | d | 46.69 | e | |
1987 | 22.40 | 30.54 | b | 36.75 | e | 45.79 | f | 50.81 | b | 57.91 | a | 56.08 | e | 58.15 | d | 54.33 | c | 45.33 | e | 32.87 | d | 26.77 | g | 44.52 | b | |
1988 | 24.82 | q | 32.55 | g | 35.76 | d | 44.34 | h | 46.44 | g | 53.88 | e | 59.83 | k | 57.61 | m | 51.29 | k | 47.68 | f | 29.65 | f | 23.52 | g | 44.82 | j |
1989 | 25.56 | e | 17.54 | d | 35.85 | h | 43.16 | a | 44.95 | c | 54.98 | b | 59.15 | e | 56.86 | i | 50.24 | i | 40.92 | g | 34.45 | j | 26.00 | e | 38.76 | e |
1990 | 29.48 | f | 26.11 | e | 33.35 | h | 44.54 | c | 43.82 | f | 52.66 | k | 61.75 | w | 56.16 | l | 54.29 | m | 39.72 | f | 32.89 | b | 14.72 | b | 29.57 | h |
1991 | 26.02 | 36.13 | b | 31.98 | c | 37.19 | d | 44.54 | g | 49.86 | e | 61.88 | a | 61.13 | d | 54.57 | 42.50 | 37.43 | 27.93 | a | 42.42 | a | ||||
1992 | 26.00 | c | 35.66 | a | 38.31 | b | 43.12 | 52.32 | 57.55 | h | 59.87 | a | 60.68 | 50.52 | 43.37 | 29.03 | a | 19.02 | e | 41.63 | a | |||||
1993 | 15.14 | f | 15.44 | c | 34.60 | a | 37.50 | b | 50.58 | a | 51.27 | b | 51.40 | a | 54.77 | 51.46 | b | 43.56 | 25.62 | a | 27.12 | a | 40.30 | a | ||
1994 | 30.89 | 28.20 | a | 35.71 | b | 41.38 | 49.81 | 53.14 | h | 62.16 | 57.98 | 52.33 | a | 38.37 | a | 21.21 | b | 22.09 | b | 40.01 | a | |||||
1995 | 29.16 | c | 36.02 | a | 31.47 | 37.04 | b | 46.68 | a | 55.02 | ----- | z | ----- | z | ----- | z | ----- | z | 34.83 | a | ----- | z | 38.60 | e | ||
1996 | ----- | z | ----- | z | ----- | z | 41.77 | 45.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.50 | j | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.77 | 30.42 | 35.11 | 40.18 | 47.42 | 53.91 | 60.58 | 58.69 | 51.72 | 43.62 | 33.69 | 27.35 | 42.48 | |||||||||||||
S.D. | 4.82 | 4.42 | 2.78 | 3.15 | 2.85 | 2.78 | 2.54 | 2.09 | 2.89 | 2.65 | 3.85 | 4.73 | 1.05 | |||||||||||||
SKEW | -0.99 | -1.05 | 0.37 | -0.27 | 0.06 | 0.20 | -0.95 | -0.04 | -0.24 | -0.47 | -0.70 | -0.09 | 0.04 | |||||||||||||
MAX | 35.52 | 37.14 | 42.50 | 47.23 | 53.18 | 60.28 | 66.11 | 63.73 | 57.73 | 50.15 | 41.85 | 38.89 | 44.07 | |||||||||||||
MIN | 12.43 | 15.44 | 29.92 | 32.83 | 41.72 | 46.93 | 51.40 | 53.00 | 44.57 | 37.12 | 21.21 | 14.72 | 41.05 | |||||||||||||
YRS | 58 | 62 | 61 | 62 | 62 | 60 | 59 | 59 | 59 | 56 | 59 | 58 | 8 |