YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 40.60 | i | 36.71 | 36.71 | k | |
1897 | 28.02 | 35.82 | 40.55 | b | 48.98 | 56.68 | 64.45 | 65.44 | 63.08 | 58.60 | 48.71 | 42.38 | 32.60 | b | 48.78 | |||||||||||
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1900 | ----- | z | ----- | z | 45.00 | a | 47.72 | 59.60 | 68.05 | 69.66 | 67.90 | 62.78 | 53.98 | f | 46.13 | 36.59 | b | 55.94 | c | |||||||
1901 | 39.62 | a | ----- | z | ----- | z | 46.60 | f | 57.86 | f | 60.62 | r | 69.42 | r | 69.48 | e | 60.94 | f | 53.14 | f | 45.18 | s | 35.05 | k | 54.55 | j |
1902 | 36.92 | e | 38.50 | a | 40.55 | 53.22 | 57.85 | g | 70.74 | i | 66.68 | a | 68.19 | b | 60.57 | 51.14 | f | 40.73 | 36.93 | b | 49.14 | c | ||||
1903 | 35.72 | a | 32.12 | b | 41.48 | a | 50.81 | l | 54.98 | a | 61.60 | a | 70.52 | 68.98 | a | 61.11 | c | 48.00 | b | 44.24 | a | 33.12 | c | 50.17 | a | |
1904 | 32.25 | a | 44.14 | h | 46.66 | b | 50.55 | ----- | z | ----- | z | 65.23 | 67.18 | 61.85 | 51.07 | a | 40.83 | a | 35.78 | b | 50.15 | c | ||||
1905 | 36.91 | b | 33.91 | a | 44.39 | h | 46.73 | d | 57.55 | a | 66.59 | a | 66.53 | b | 67.20 | f | 61.76 | a | 51.43 | b | 42.52 | 29.05 | c | 49.30 | b | |
1906 | 32.98 | 38.11 | 44.08 | g | 50.36 | b | 58.48 | 67.75 | 66.18 | 64.90 | 61.07 | a | 50.29 | b | 39.96 | b | 40.35 | a | 51.86 | a | ||||||
1907 | 40.88 | a | 42.36 | c | 49.45 | 51.76 | a | 53.89 | 63.97 | 69.58 | 68.94 | 62.67 | 51.85 | 39.88 | a | 38.68 | a | 52.83 | ||||||||
1908 | 36.89 | 39.45 | a | 48.39 | 51.20 | 56.34 | 66.02 | 67.21 | 66.06 | 60.40 | 50.92 | 40.84 | a | 38.88 | a | 51.88 | ||||||||||
1909 | 42.69 | 38.59 | 40.48 | 50.14 | b | 55.63 | 67.05 | 70.18 | 67.81 | 60.08 | 52.77 | 45.90 | a | 32.07 | b | 51.95 | ||||||||||
1910 | 40.58 | 36.57 | 48.48 | b | 51.73 | 60.35 | e | 67.87 | d | 71.52 | 69.48 | 63.48 | a | 52.40 | 46.46 | d | 38.11 | 53.92 | ||||||||
1911 | 41.78 | a | 36.15 | a | 47.95 | 52.32 | 58.10 | 66.28 | 67.33 | a | 68.56 | 64.45 | 51.08 | 39.97 | 30.66 | 52.05 | ||||||||||
1912 | 37.31 | 36.84 | 42.97 | b | 47.85 | 58.77 | 64.32 | 68.12 | s | 67.62 | k | 59.17 | a | 52.59 | b | 42.60 | 33.09 | c | 47.55 | b | ||||||
1913 | 34.60 | a | 35.91 | 41.00 | 47.40 | 56.52 | 60.07 | g | 68.95 | 68.09 | d | 58.02 | b | 53.32 | a | 47.35 | 30.89 | 49.28 | a | |||||||
1914 | 41.63 | h | 37.81 | a | 41.79 | 52.48 | a | 58.28 | a | 66.23 | 66.07 | a | 68.24 | 63.80 | e | 54.32 | 45.23 | 33.16 | b | 53.40 | a | |||||
1915 | 32.81 | 38.13 | a | 37.58 | 50.60 | 55.72 | b | 67.07 | 68.68 | 65.03 | 59.72 | a | 49.11 | 42.98 | 35.81 | b | 50.27 | |||||||||
1916 | 38.45 | 41.70 | a | 46.82 | l | 50.98 | b | 61.40 | a | 71.28 | 68.57 | d | 66.53 | 60.57 | 50.40 | 36.52 | 33.60 | 52.73 | a | |||||||
1917 | 31.81 | 34.34 | 38.10 | 48.04 | b | 49.90 | 62.20 | 67.13 | 63.82 | 57.14 | b | 47.58 | 38.48 | 36.02 | b | 47.88 | ||||||||||
1918 | 29.33 | b | 40.55 | 47.48 | 48.83 | 58.47 | 70.17 | d | 70.23 | g | 66.87 | 61.14 | a | 52.47 | 38.08 | 31.65 | a | 49.55 | a | |||||||
1919 | 31.31 | 34.98 | 42.85 | 52.31 | a | 57.57 | d | 65.14 | h | 68.78 | h | 68.76 | 62.91 | a | 53.60 | a | 40.73 | 39.56 | 48.46 | b | ||||||
1920 | 36.85 | 41.50 | 42.69 | 46.27 | f | 58.05 | b | 65.40 | e | 69.07 | a | 66.23 | 64.02 | 56.34 | c | 43.39 | k | 27.76 | 52.79 | b | ||||||
1921 | 35.55 | a | 37.98 | a | 45.45 | b | 47.45 | b | 60.60 | 63.88 | a | 66.52 | 68.50 | s | 62.69 | a | 54.61 | 42.87 | d | 42.50 | l | 51.76 | b | |||
1922 | 32.88 | a | 38.31 | a | 42.81 | 51.47 | a | 60.65 | 70.05 | 72.65 | 72.21 | 65.95 | 54.84 | 42.65 | 42.26 | 53.89 | ||||||||||
1923 | 42.08 | 39.45 | 44.42 | 51.13 | 59.00 | 68.17 | 71.15 | 68.65 | 61.43 | 50.00 | 41.80 | 34.19 | 52.62 | |||||||||||||
1924 | 34.98 | 38.72 | 39.95 | 49.22 | 58.58 | 69.92 | 70.02 | 69.79 | 63.37 | 53.94 | 45.42 | 33.45 | a | 52.28 | ||||||||||||
1925 | 32.37 | 40.89 | a | 47.98 | 56.43 | a | 61.85 | 68.70 | 70.42 | 65.73 | 62.82 | 52.48 | 42.10 | 32.08 | 52.82 | |||||||||||
1926 | 29.44 | 41.17 | a | 39.55 | 48.65 | 57.63 | 66.32 | 68.84 | 68.18 | 64.86 | b | 54.63 | ----- | z | 22.56 | w | 53.92 | b | ||||||||
1927 | 30.27 | a | 41.93 | 43.90 | 51.60 | 60.19 | 64.77 | 70.66 | 68.32 | 63.72 | 54.47 | a | 50.60 | 33.23 | 52.80 | |||||||||||
1928 | 37.03 | 31.98 | 44.56 | 48.65 | c | 59.58 | a | 67.73 | 70.62 | a | 67.16 | 62.28 | 56.84 | b | 41.50 | 34.65 | 51.88 | |||||||||
1929 | 30.25 | a | 29.69 | b | 38.97 | a | 49.36 | a | 56.95 | 67.42 | 70.11 | 68.03 | 63.57 | a | 53.95 | 35.76 | a | 32.77 | a | 49.74 | ||||||
1930 | 27.45 | b | 39.52 | c | 39.22 | a | 52.96 | c | 56.05 | 65.69 | a | 65.85 | 69.39 | 61.97 | 56.92 | 32.97 | a | 31.26 | 49.94 | |||||||
1931 | 28.25 | a | 36.09 | 36.77 | 48.63 | 57.56 | 68.38 | 71.06 | 67.95 | 66.07 | 56.95 | 43.27 | 31.16 | 51.01 | ||||||||||||
1932 | 29.39 | 40.33 | 39.03 | 52.03 | 56.77 | 66.57 | 70.95 | 70.42 | 60.40 | 50.79 | 43.10 | 29.85 | 50.80 | |||||||||||||
1933 | 34.85 | a | 33.57 | a | 45.68 | 46.72 | 55.69 | 66.32 | 71.11 | 68.35 | 66.58 | 55.52 | 44.83 | a | 40.44 | 52.47 | ||||||||||
1934 | 34.67 | a | 42.09 | 45.85 | a | 53.75 | 63.05 | 69.13 | 73.03 | 71.03 | 63.95 | 58.06 | 44.63 | 38.98 | 54.85 | |||||||||||
1935 | 38.87 | 37.16 | 45.55 | 52.38 | 54.24 | 66.28 | 69.98 | 67.61 | 58.70 | 52.92 | 42.87 | 35.34 | 51.83 | |||||||||||||
1936 | 34.88 | a | 39.83 | 44.84 | 50.63 | 58.55 | 66.93 | 67.66 | 68.44 | 60.90 | 49.68 | 40.02 | 34.69 | e | 51.42 | |||||||||||
1937 | 31.74 | 37.46 | 39.35 | 49.63 | 58.65 | 65.57 | 69.03 | 69.16 | 63.13 | 53.89 | 47.54 | r | ----- | z | 53.76 | b | ||||||||||
1938 | 35.71 | n | 40.21 | 44.32 | 50.10 | 58.44 | 66.90 | 67.56 | 68.19 | 60.91 | a | 52.97 | 37.90 | 37.10 | a | 53.15 | a | |||||||||
1939 | 33.83 | a | 31.02 | a | 44.33 | a | 50.09 | a | 58.84 | 67.40 | a | 68.10 | 67.05 | 62.83 | 50.65 | 39.38 | 38.48 | 51.00 | ||||||||
1940 | 32.77 | a | 36.12 | 43.53 | 50.47 | 59.05 | 65.28 | 70.31 | 67.35 | 63.35 | 54.13 | 41.52 | 40.42 | 52.02 | ||||||||||||
1941 | 35.63 | a | 40.55 | 40.50 | 48.10 | 59.39 | 62.98 | 67.65 | 67.29 | 63.64 | a | 54.98 | a | 43.52 | ----- | z | 53.11 | a | ||||||||
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 50.94 | 40.25 | 33.26 | 41.48 | i | |||
1944 | 32.27 | 37.67 | 41.40 | 48.23 | 58.48 | 67.75 | 70.48 | 69.92 | 61.45 | 52.85 | 40.17 | 34.87 | 51.30 | |||||||||||||
1945 | 35.87 | 40.06 | a | 42.32 | 49.92 | 61.35 | 66.65 | 70.47 | 70.13 | 65.25 | b | 53.44 | 45.77 | 35.66 | 53.07 | |||||||||||
1946 | 31.56 | 40.08 | c | 46.56 | 56.52 | 59.13 | 69.62 | 71.21 | 70.00 | 65.17 | 54.60 | 41.68 | b | 39.74 | 53.82 | |||||||||||
1947 | 33.34 | b | 38.80 | 44.26 | 51.37 | c | 61.71 | 68.07 | a | 72.45 | k | 68.73 | a | 65.63 | ----- | z | 38.80 | t | 33.37 | 51.70 | c | |||||
1948 | 32.48 | 36.38 | 39.65 | a | 54.83 | 60.58 | 68.37 | 70.44 | 70.34 | 63.23 | 51.76 | 38.68 | 39.26 | 52.17 | ||||||||||||
1949 | 27.15 | 37.48 | 45.34 | 49.28 | 60.50 | 68.25 | 70.76 | 67.82 | 63.82 | 50.88 | a | 46.77 | 35.61 | 51.97 | ||||||||||||
1950 | 39.11 | c | 42.88 | 46.74 | 53.73 | 59.82 | 68.73 | 69.35 | 67.19 | 60.61 | c | 56.69 | 43.57 | a | 40.23 | 54.06 | ||||||||||
1951 | 36.10 | a | 39.04 | 42.97 | 48.97 | 60.05 | 67.80 | 73.81 | 69.87 | 64.45 | 55.11 | 41.03 | 36.76 | 53.00 | ||||||||||||
1952 | 41.66 | 38.79 | 40.00 | a | 50.60 | 59.23 | 69.50 | 69.00 | a | 71.10 | 63.68 | 52.73 | 40.10 | a | 36.26 | 52.72 | ||||||||||
1953 | 42.08 | 36.45 | 46.85 | a | 51.55 | a | 54.69 | b | 70.59 | b | ----- | z | ----- | z | 63.45 | k | 53.57 | a | 44.73 | 32.34 | 48.09 | c | ||||
1954 | 38.82 | 43.30 | 43.90 | a | 55.57 | a | 59.85 | 68.17 | 72.18 | 68.18 | a | 65.15 | 55.05 | 44.93 | 38.58 | a | 54.47 | |||||||||
1955 | 34.60 | 35.95 | 45.40 | a | 51.16 | b | 58.68 | a | 66.67 | 67.15 | 67.65 | 63.60 | a | 53.80 | a | 43.93 | 39.81 | 52.37 | ||||||||
1956 | 39.94 | 33.38 | a | 46.11 | 49.10 | a | 61.45 | a | 70.74 | a | 69.31 | 66.08 | 63.80 | 54.61 | 39.65 | 34.85 | 52.42 | |||||||||
1957 | 39.44 | 45.42 | c | 43.38 | a | 50.03 | 54.85 | 67.55 | 71.72 | b | 67.19 | 60.47 | 50.50 | 38.48 | 37.84 | 52.24 | ||||||||||
1958 | 32.24 | 40.02 | 37.28 | a | 48.92 | 59.24 | 69.14 | a | 70.15 | 69.34 | 62.00 | 51.17 | a | 42.93 | a | 38.35 | 51.73 | |||||||||
1959 | 36.22 | b | 37.69 | b | 39.79 | l | 53.97 | m | 58.89 | 68.33 | 69.17 | m | 68.39 | 61.88 | 52.97 | 41.38 | 37.00 | 51.42 | c | |||||||
1960 | 32.03 | 34.02 | 46.37 | 51.32 | 57.69 | 67.65 | 68.90 | a | 69.53 | 63.75 | 51.97 | 43.81 | a | 32.16 | 51.60 | |||||||||||
1961 | 33.32 | 38.00 | 43.03 | 49.57 | 61.27 | 67.93 | 70.24 | 69.24 | 61.08 | 52.68 | 39.22 | 36.63 | 51.85 | |||||||||||||
1962 | 30.79 | 42.52 | a | 38.43 | a | 51.68 | 58.50 | a | 65.47 | 67.74 | 68.74 | 62.88 | a | 53.26 | 43.67 | 36.03 | 51.64 | |||||||||
1963 | 30.18 | 38.71 | 42.25 | a | 53.92 | 60.61 | 66.48 | 71.92 | 66.93 | a | 63.13 | 54.18 | 42.95 | 33.68 | 52.08 | |||||||||||
1964 | 30.71 | 30.36 | a | 40.52 | 49.35 | 59.20 | a | 67.73 | 71.52 | 69.87 | 61.62 | 53.71 | 43.71 | a | 36.66 | 51.25 | ||||||||||
1965 | 39.87 | 35.18 | 39.58 | a | 51.83 | 59.06 | 65.20 | 71.29 | 67.02 | 60.88 | a | 53.02 | 46.33 | 38.35 | 52.30 | |||||||||||
1966 | 29.27 | a | 31.07 | a | 44.60 | 51.37 | 62.70 | c | 66.66 | a | 70.02 | a | 65.30 | a | 55.80 | 47.28 | b | 47.28 | a | 37.93 | c | 50.77 | ||||
1967 | 38.93 | c | ----- | z | 52.41 | c | 51.82 | b | 58.29 | b | 63.50 | a | 71.36 | c | 69.14 | b | 62.67 | c | 52.31 | e | 45.64 | a | 35.19 | e | 54.66 | a |
1968 | 35.35 | r | 40.55 | 42.03 | 46.80 | c | 54.11 | 67.14 | a | 68.80 | a | 66.81 | 59.10 | 54.04 | c | 44.48 | a | 36.33 | d | 52.74 | a | |||||
1969 | 37.83 | a | 37.16 | 38.23 | 53.71 | a | 57.05 | b | 64.08 | 71.14 | b | 70.30 | a | 61.28 | 50.48 | ----- | z | ----- | z | 54.13 | b | |||||
1970 | ----- | z | 38.25 | d | 38.95 | 48.79 | a | 57.98 | 63.93 | ----- | z | 67.47 | 61.12 | a | 50.10 | a | 42.70 | 38.26 | 50.76 | b | ||||||
1971 | 35.52 | 36.12 | 42.52 | a | 49.32 | 57.87 | ----- | z | 67.94 | 64.60 | 62.05 | 50.89 | ----- | z | ----- | z | 51.87 | c | ||||||||
1972 | 41.88 | r | 40.02 | 48.73 | 50.62 | 56.84 | 66.23 | 69.69 | m | 65.89 | 61.98 | 54.20 | d | 37.25 | 31.63 | p | 53.53 | c | ||||||||
1973 | 33.40 | f | 35.27 | b | 39.42 | 44.21 | a | 54.11 | l | ----- | z | ----- | z | 67.18 | n | 62.10 | ----- | z | 43.28 | l | 35.56 | m | 45.25 | h | ||
1974 | 36.58 | k | 40.78 | l | 46.28 | d | 50.10 | j | 61.59 | i | 68.50 | a | 68.40 | 65.44 | 58.93 | 52.73 | 41.47 | a | ----- | z | 57.39 | e | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.79 | 37.80 | 43.12 | 50.53 | 58.37 | 66.97 | 69.42 | 68.01 | 62.18 | 52.76 | 42.25 | 35.55 | 51.99 | |||||||||||||
S.D. | 4.06 | 3.27 | 3.41 | 2.34 | 2.31 | 2.05 | 1.96 | 1.77 | 2.13 | 2.29 | 3.10 | 3.17 | 1.38 | |||||||||||||
SKEW | 0.12 | -0.39 | 0.21 | 0.26 | -0.75 | -0.34 | -0.23 | -0.39 | -0.42 | -0.14 | -0.22 | -0.19 | -0.57 | |||||||||||||
MAX | 42.69 | 45.42 | 52.41 | 56.52 | 63.05 | 71.28 | 73.81 | 72.21 | 66.58 | 58.06 | 50.60 | 42.26 | 54.85 | |||||||||||||
MIN | 27.15 | 29.69 | 36.77 | 44.21 | 49.90 | 61.60 | 65.23 | 63.08 | 55.80 | 47.28 | 32.97 | 27.76 | 47.88 | |||||||||||||
YRS | 66 | 69 | 69 | 69 | 69 | 67 | 64 | 69 | 72 | 70 | 67 | 66 | 44 |