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 | 36.48 | a | 37.89 | 42.08 | 47.90 | 57.12 | a | 59.24 | a | 64.95 | 63.81 | b | 57.07 | b | 48.34 | 36.88 | 31.66 | c | 48.62 | |||||||
1932 | 32.37 | d | 31.59 | 40.23 | a | 47.23 | b | 52.20 | d | 60.25 | 60.58 | a | 62.45 | b | 57.97 | a | 50.10 | 43.43 | a | 30.74 | 47.43 | |||||
1933 | 33.35 | 32.91 | f | 38.27 | a | 45.80 | b | 48.26 | 56.71 | b | 62.82 | 64.58 | a | 53.81 | a | 51.97 | 42.67 | 40.50 | 48.98 | a | ||||||
1934 | 40.75 | a | 42.27 | 48.98 | c | 54.14 | a | 55.17 | e | 58.52 | g | 62.33 | g | 65.02 | f | 56.31 | d | 51.81 | 44.23 | 37.16 | 47.87 | c | ||||
1935 | 32.15 | 39.09 | 39.53 | a | 47.30 | 54.35 | d | 60.45 | 64.35 | e | 61.74 | j | 60.34 | e | 47.62 | j | 36.50 | a | 33.05 | a | 46.71 | b | ||||
1936 | 36.05 | b | 24.41 | a | 39.61 | 48.77 | 55.50 | h | 59.85 | f | 62.93 | a | 63.47 | 57.20 | 51.87 | a | 38.80 | 40.12 | c | 46.32 | b | |||||
1937 | 23.02 | 34.29 | 41.48 | 43.93 | b | 52.87 | a | 60.12 | 63.97 | 60.73 | a | 56.68 | 52.08 | 43.23 | 37.31 | 47.48 | ||||||||||
1938 | 34.97 | 35.35 | a | 40.27 | 47.70 | b | 53.07 | a | 59.80 | 66.18 | 60.40 | 61.83 | 50.10 | 37.97 | 35.60 | b | 48.60 | |||||||||
1939 | 38.23 | 35.00 | a | 43.06 | 49.43 | b | 55.31 | 56.47 | 64.84 | 64.84 | i | 59.62 | a | 51.14 | c | 42.83 | 40.21 | b | 48.74 | a | ||||||
1940 | 34.69 | 38.69 | 45.10 | 48.43 | b | 56.55 | a | 61.22 | 63.33 | h | 64.34 | c | 61.00 | g | 52.37 | 37.30 | 36.19 | 47.49 | b | |||||||
1941 | 34.45 | 39.71 | 46.48 | a | 50.62 | 53.61 | 57.28 | 68.31 | j | 63.75 | g | 56.03 | 49.45 | 43.03 | 37.55 | 46.82 | b | |||||||||
1942 | 27.58 | 36.98 | 41.94 | 49.78 | 52.79 | 57.70 | 65.65 | 65.72 | a | 60.69 | a | 51.77 | 38.33 | 35.85 | 48.73 | |||||||||||
1943 | 27.31 | 36.71 | 38.45 | a | 48.74 | a | 50.98 | 56.77 | 64.00 | 61.40 | 61.09 | a | 50.34 | 41.02 | 34.37 | 47.60 | ||||||||||
1944 | 32.42 | 36.74 | 40.63 | 46.23 | 53.29 | 58.05 | 64.08 | 61.47 | 60.22 | 53.03 | 39.28 | 30.45 | c | 47.99 | ||||||||||||
1945 | 36.15 | 38.14 | 37.90 | b | 43.98 | 53.84 | 56.23 | b | 64.02 | 63.95 | 56.18 | b | 50.85 | e | 38.26 | e | 33.91 | h | 49.04 | a | ||||||
1946 | 35.35 | e | 36.34 | c | 41.03 | 46.19 | d | 55.60 | f | 56.18 | h | 63.35 | g | 63.75 | g | 56.54 | e | 45.76 | d | 37.41 | a | 36.93 | b | 41.94 | d | |
1947 | 31.69 | e | 39.41 | a | 44.50 | 49.00 | b | 57.34 | 56.23 | 62.04 | h | 60.36 | c | 58.50 | d | 49.30 | d | 40.52 | b | 36.63 | 47.59 | a | ||||
1948 | 33.45 | a | 33.98 | a | 38.00 | 43.30 | b | 51.63 | e | 61.07 | 60.65 | 60.18 | a | 54.97 | 47.52 | 37.58 | 30.52 | 46.07 | ||||||||
1949 | 20.10 | 32.02 | 38.46 | f | 47.07 | a | 54.95 | 56.75 | 61.45 | a | 61.94 | 58.50 | 43.31 | 44.10 | 34.37 | 46.78 | a | |||||||||
1950 | 18.95 | 31.65 | a | 36.68 | 41.52 | 48.70 | a | 58.03 | 62.71 | 63.73 | 57.65 | 47.03 | 38.73 | 38.13 | 45.29 | |||||||||||
1951 | 31.77 | 35.07 | 36.03 | 46.80 | 52.15 | 59.00 | 62.94 | 62.03 | a | ----- | z | 47.39 | 38.81 | a | 31.03 | 45.73 | a | |||||||||
1952 | 27.97 | 34.41 | 37.61 | 47.17 | 52.27 | 55.78 | 63.84 | 63.10 | 59.85 | 54.52 | 35.30 | 33.31 | 47.09 | |||||||||||||
1953 | 41.08 | 38.43 | 40.50 | 44.12 | 49.63 | 53.90 | 62.11 | 61.29 | 57.97 | 49.81 | 42.90 | 38.34 | b | 48.34 | ||||||||||||
1954 | 32.40 | 35.32 | 37.00 | 43.95 | 52.23 | 53.85 | 59.11 | 57.21 | 55.48 | 47.65 | 46.22 | 32.42 | s | 47.31 | a | |||||||||||
1955 | 33.60 | 34.84 | 35.12 | g | 41.07 | 48.87 | 57.60 | 58.50 | 60.92 | 56.18 | 48.26 | 34.72 | 31.13 | 45.97 | a | |||||||||||
1956 | 31.73 | 29.14 | 36.35 | 45.65 | 54.79 | 55.47 | 65.47 | 63.10 | 56.53 | 45.15 | 35.82 | 33.16 | 46.03 | |||||||||||||
1957 | 22.53 | 34.57 | 39.65 | 46.75 | 55.31 | 58.88 | e | 61.85 | a | 60.45 | a | 62.25 | 47.34 | b | 39.17 | 37.34 | 47.17 | |||||||||
1958 | 35.34 | b | 42.50 | f | 39.90 | f | 44.65 | c | 59.57 | a | 63.28 | e | 67.15 | a | 68.23 | a | 58.86 | a | 48.85 | g | 40.46 | e | 38.73 | a | 52.92 | c |
1959 | 34.58 | 35.61 | a | 40.28 | d | 45.83 | a | 49.65 | e | 59.12 | b | 67.31 | d | 62.97 | 58.95 | s | ----- | z | 37.25 | b | 33.77 | c | 46.64 | b | ||
1960 | 29.38 | f | 36.68 | l | 37.31 | m | 45.78 | l | 49.91 | t | 60.64 | e | 67.88 | a | 61.63 | a | 56.80 | b | 49.22 | m | 39.85 | m | 32.19 | m | 61.74 | h |
1961 | 35.33 | g | 39.89 | j | 41.48 | i | 44.98 | j | 52.29 | g | 64.02 | 66.45 | 68.69 | 53.17 | a | 47.07 | i | 35.88 | j | 33.60 | j | 63.08 | h | |||
1962 | 31.15 | k | 35.78 | l | 38.12 | g | 48.26 | i | 48.80 | k | 59.81 | i | 63.67 | a | 62.32 | a | 58.54 | c | 49.41 | i | 41.79 | k | 37.50 | n | 61.51 | i |
1963 | 29.50 | j | 40.16 | i | 41.60 | j | 43.25 | h | 52.82 | i | 58.74 | e | 59.94 | 63.26 | 62.65 | 51.67 | h | 40.88 | i | 31.95 | k | 61.15 | h | |||
1964 | 35.95 | j | 36.05 | j | 38.89 | i | 44.00 | i | 49.31 | m | 57.14 | h | 64.08 | 60.60 | 53.72 | 48.78 | h | 37.42 | k | 32.33 | j | 59.46 | i | |||
1965 | 33.20 | k | ----- | z | 38.89 | h | 48.38 | j | 50.50 | l | 59.26 | g | 65.58 | a | 63.17 | a | 53.40 | 50.05 | i | 42.92 | j | 32.40 | j | 60.72 | i | |
1966 | 31.38 | j | ----- | z | 36.67 | h | ----- | z | 55.38 | j | 58.02 | f | 64.95 | a | 65.00 | 60.60 | 48.65 | h | 41.08 | k | 36.93 | i | 63.52 | i | ||
1967 | 37.45 | k | 38.78 | l | 38.86 | i | 43.50 | j | 53.23 | i | 64.98 | e | 66.65 | 70.52 | 63.22 | a | 49.55 | j | 39.95 | j | 31.82 | k | 66.34 | h | ||
1968 | 32.95 | k | 39.22 | b | 43.89 | 45.50 | b | 54.47 | 59.46 | e | 66.31 | 61.65 | a | 58.28 | g | 46.95 | i | 40.24 | k | 31.78 | m | 52.93 | e | |||
1969 | 26.52 | i | 32.72 | j | 37.24 | n | 44.43 | 57.47 | b | 65.42 | 64.24 | 63.37 | a | 60.60 | 48.64 | c | 41.38 | a | 33.98 | f | 55.69 | d | ||||
1970 | 32.88 | f | 40.56 | d | 42.06 | g | 44.08 | r | 56.44 | e | 64.62 | 68.21 | b | 65.85 | a | 55.38 | d | 46.29 | b | 39.03 | 31.48 | c | 51.99 | c | ||
1971 | 32.42 | 36.92 | d | 36.87 | a | 45.02 | d | 54.43 | d | 55.47 | a | 66.73 | c | 69.08 | 57.07 | b | 46.65 | 39.36 | b | 32.52 | c | 47.71 | ||||
1972 | 31.59 | d | 35.57 | b | 43.81 | b | 43.07 | c | 57.82 | 60.32 | b | 66.71 | 68.39 | h | 55.76 | g | 48.52 | i | 40.40 | i | 27.26 | l | 48.41 | e | ||
1973 | 28.78 | o | 34.26 | k | 41.53 | 46.84 | h | 56.72 | h | 59.95 | a | ----- | z | 60.29 | l | 59.30 | h | 49.93 | p | 36.52 | i | 36.59 | o | 50.74 | j | |
1974 | 27.71 | e | 35.57 | 39.62 | b | 46.22 | a | 51.06 | f | 63.17 | 65.40 | 63.10 | k | 60.14 | b | 48.77 | 37.74 | a | 37.62 | b | 46.20 | b | ||||
1975 | 32.45 | a | 33.39 | a | 37.76 | 42.42 | 51.47 | 57.07 | 66.48 | 61.19 | b | 61.23 | 49.79 | 37.64 | a | 37.05 | c | 47.33 | ||||||||
1976 | 36.85 | a | 36.13 | b | 37.66 | 45.86 | i | 55.34 | 57.20 | 65.20 | a | 65.16 | 64.17 | 54.58 | 40.28 | a | 35.12 | k | 51.26 | b | ||||||
1977 | 29.04 | e | 36.57 | 37.50 | 46.91 | a | 46.55 | 59.22 | c | 63.90 | 72.69 | j | ----- | z | ----- | z | ----- | z | ----- | z | 45.67 | e | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 32.02 | 35.76 | 40.30 | 46.29 | 53.44 | 58.99 | 64.24 | 63.14 | 58.23 | 49.47 | 39.66 | 35.25 | 47.43 | |||||||||||||
S.D. | 5.15 | 3.37 | 3.09 | 2.67 | 3.01 | 2.91 | 2.36 | 2.74 | 2.81 | 2.68 | 2.83 | 3.11 | 1.01 | |||||||||||||
SKEW | -0.81 | -1.03 | 0.85 | 0.41 | -0.26 | 0.50 | -0.57 | 0.80 | 0.12 | -0.10 | 0.41 | -0.07 | -0.62 | |||||||||||||
MAX | 41.08 | 42.27 | 48.98 | 54.14 | 59.57 | 65.42 | 68.21 | 70.52 | 64.17 | 54.58 | 46.22 | 40.50 | 48.73 | |||||||||||||
MIN | 18.95 | 24.41 | 36.03 | 41.07 | 46.55 | 53.85 | 58.50 | 57.21 | 53.17 | 43.31 | 34.72 | 30.45 | 45.29 | |||||||||||||
YRS | 35 | 35 | 34 | 36 | 35 | 40 | 41 | 38 | 40 | 32 | 35 | 31 | 15 |