YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1893 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.84 | 48.32 | 46.23 | ----- | z | ----- | z | ----- | z | 47.46 | i | |||
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1895 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 37.35 | 37.35 | k | |
1903 | 37.26 | 33.00 | 42.16 | 39.50 | 43.94 | 47.07 | 47.94 | 47.71 | 46.80 | 47.06 | 45.60 | 37.65 | 42.97 | |||||||||||||
1904 | 33.26 | 41.79 | 43.71 | 42.83 | 44.77 | 48.93 | 49.97 | 50.71 | 52.53 | 49.06 | 40.73 | 36.53 | a | 44.57 | ||||||||||||
1905 | 40.74 | 40.89 | 45.42 | 43.90 | 43.65 | 47.73 | 52.00 | 48.55 | 46.80 | 41.03 | 39.10 | 34.13 | 43.66 | |||||||||||||
1906 | 39.00 | 45.61 | 43.84 | 43.37 | 47.03 | 47.77 | 52.13 | 51.94 | 48.33 | 42.74 | 39.57 | 39.48 | 45.07 | |||||||||||||
1907 | 38.90 | 45.57 | 41.61 | 45.30 | 45.52 | 48.93 | 52.03 | 51.77 | 47.53 | 48.29 | 40.80 | 41.16 | 45.62 | |||||||||||||
1908 | 40.00 | 39.07 | 38.06 | 40.93 | 40.97 | 44.47 | 52.03 | 50.58 | 48.70 | 41.35 | 40.83 | 35.26 | 42.69 | |||||||||||||
1909 | 45.74 | 42.57 | 40.19 | 40.63 | 41.94 | 47.87 | 47.03 | 47.42 | 48.40 | 45.65 | 41.27 | 36.03 | 43.73 | |||||||||||||
1910 | 36.00 | 37.79 | 43.68 | 44.87 | 46.97 | 43.20 | 49.68 | 46.29 | 45.27 | 45.23 | 40.93 | 37.65 | 43.13 | |||||||||||||
1911 | 38.68 | 35.79 | 44.19 | 41.37 | 41.42 | 47.97 | 51.68 | 47.94 | 43.67 | 42.71 | 34.87 | 35.26 | 42.13 | |||||||||||||
1912 | 40.10 | 41.03 | 40.71 | 40.70 | 46.35 | 50.13 | 49.90 | 48.45 | 50.27 | 39.68 | 40.60 | 34.58 | 43.54 | |||||||||||||
1913 | 34.84 | 38.43 | 38.26 | 41.70 | 45.29 | 49.77 | 52.84 | 52.81 | 49.97 | 43.84 | 45.53 | 38.77 | 44.34 | |||||||||||||
1914 | 41.35 | 38.89 | 43.97 | 44.70 | 48.23 | 48.10 | 52.52 | 51.77 | 46.83 | 45.68 | 36.63 | 36.48 | 44.60 | |||||||||||||
1915 | 38.42 | 43.61 | 43.90 | 47.83 | 47.48 | 46.70 | 51.84 | 51.97 | 46.37 | 43.00 | 39.37 | 38.97 | 44.95 | |||||||||||||
1916 | 39.58 | 44.45 | 41.90 | 41.30 | 41.81 | 45.87 | 47.45 | 49.97 | 48.13 | 44.32 | 35.80 | 34.61 | 42.93 | |||||||||||||
1917 | 32.00 | 37.93 | 34.58 | 40.90 | 42.90 | 44.13 | 50.68 | 52.45 | 48.83 | 46.32 | 41.73 | 39.19 | 42.64 | |||||||||||||
1918 | 37.13 | 38.43 | 42.32 | 40.57 | 42.87 | 49.47 | 49.77 | 49.32 | 53.97 | 48.26 | 40.57 | 32.61 | 43.77 | |||||||||||||
1919 | 33.03 | 39.96 | 39.10 | 43.10 | 45.87 | 43.80 | 48.77 | 50.97 | 47.43 | 40.06 | 35.33 | 36.26 | 41.97 | |||||||||||||
1920 | 36.55 | 37.82 | a | 39.58 | 41.03 | 41.61 | 48.53 | 48.87 | 51.77 | 48.63 | 44.06 | 41.47 | 39.90 | a | 43.32 | |||||||||||
1921 | 37.97 | 39.46 | 43.61 | 40.60 | 45.03 | 49.70 | 49.58 | 48.81 | 46.17 | 47.23 | 39.53 | 40.52 | 44.02 | |||||||||||||
1922 | 31.48 | 39.71 | 39.58 | 37.97 | 43.94 | 50.83 | 52.16 | 48.39 | 48.20 | 46.16 | 37.63 | 41.23 | 43.11 | |||||||||||||
1923 | 36.45 | 36.50 | 37.35 | 42.70 | 42.74 | 47.30 | 47.48 | 50.77 | 50.17 | 43.16 | 41.03 | 35.10 | 42.56 | |||||||||||||
1924 | 32.55 | 41.41 | 37.84 | 43.07 | 46.68 | 47.57 | 49.13 | 50.94 | 47.27 | 43.94 | 39.23 | 35.03 | 42.89 | |||||||||||||
1925 | 37.29 | 44.82 | 40.16 | 46.50 | 49.65 | 49.80 | 54.26 | 50.35 | 47.53 | 45.29 | 40.27 | 36.52 | 45.20 | |||||||||||||
1926 | 35.16 | 43.25 | 44.97 | 50.47 | 45.65 | 49.73 | 49.55 | 50.97 | 44.13 | 47.61 | 46.03 | 35.74 | 45.27 | |||||||||||||
1927 | 39.10 | 42.68 | 40.74 | 41.67 | 43.35 | 50.33 | 51.45 | 51.77 | 45.70 | 44.32 | 44.77 | 36.48 | 44.36 | |||||||||||||
1928 | 37.97 | 40.07 | 46.45 | 41.57 | 48.32 | 47.57 | 51.00 | 51.42 | 47.73 | 44.71 | 40.20 | 34.26 | 44.27 | |||||||||||||
1929 | 34.90 | 36.18 | 41.65 | 40.90 | 44.23 | 49.20 | 51.16 | 51.61 | 48.67 | 46.00 | 35.30 | 43.48 | 43.61 | |||||||||||||
1930 | 39.32 | 41.96 | 42.55 | 45.37 | 44.26 | 48.33 | 49.77 | 50.42 | 50.33 | 44.84 | 38.80 | 33.74 | 44.14 | |||||||||||||
1931 | 37.90 | b | 43.18 | 41.55 | 43.57 | 51.90 | 52.07 | 53.90 | 52.71 | 49.20 | 45.97 | 39.73 | 39.03 | 45.89 | ||||||||||||
1932 | 37.19 | 37.72 | 42.52 | 42.03 | 48.68 | 51.60 | 51.52 | 50.10 | 51.87 | 46.68 | 44.07 | 33.65 | 44.80 | |||||||||||||
1933 | 35.29 | 36.29 | 42.71 | 43.07 | 44.87 | 48.37 | 52.45 | 53.58 | 49.33 | 50.19 | 40.10 | 39.97 | 44.68 | |||||||||||||
1934 | 40.00 | 44.86 | 48.03 | 46.40 | 49.71 | 51.67 | 52.32 | 53.42 | 50.07 | 47.77 | 45.47 | 39.71 | 47.45 | |||||||||||||
1935 | 38.48 | 40.32 | 38.90 | 45.70 | 48.00 | 49.73 | 51.58 | 52.94 | 53.67 | 46.48 | 38.63 | 37.87 | 45.19 | |||||||||||||
1936 | 42.35 | 42.59 | 42.61 | 45.33 | 49.55 | 50.97 | 52.45 | 53.19 | 50.17 | 48.48 | 39.70 | 37.90 | 46.28 | |||||||||||||
1937 | 32.90 | 38.75 | 43.90 | 42.03 | 46.19 | 52.77 | 55.00 | 51.45 | 51.63 | 48.55 | 45.00 | 40.06 | 45.69 | |||||||||||||
1938 | 40.03 | 42.86 | 43.03 | 44.00 | 48.45 | 51.27 | 55.97 | 51.77 | 51.93 | 48.84 | 37.43 | 41.16 | 46.40 | |||||||||||||
1939 | 37.61 | 37.11 | 42.45 | 46.00 | 48.00 | 48.90 | 52.77 | 53.10 | 53.77 | 46.35 | 39.23 | 41.13 | 45.54 | |||||||||||||
1940 | 43.10 | 45.17 | 45.48 | 46.33 | 48.94 | 52.53 | 53.61 | 54.23 | 53.30 | 47.26 | 40.43 | 42.10 | 47.71 | |||||||||||||
1941 | 43.10 | 46.25 | 46.13 | 45.80 | 51.52 | 50.23 | 56.03 | 53.29 | 49.40 | 46.10 | 44.70 | 43.42 | 48.00 | |||||||||||||
1942 | 40.06 | 39.86 | 39.94 | 45.73 | 46.29 | 48.90 | 53.90 | 54.61 | 50.67 | 47.23 | 41.70 | 39.97 | 45.74 | |||||||||||||
1943 | 37.45 | 40.64 | 45.19 | 46.07 | 46.19 | 48.73 | 53.32 | 51.71 | 52.63 | 46.16 | 41.43 | 39.65 | 45.77 | |||||||||||||
1944 | 39.16 | 39.72 | 39.97 | 42.57 | 46.61 | 50.90 | 52.42 | 50.13 | 49.23 | 48.16 | 41.50 | 38.39 | 44.90 | |||||||||||||
1945 | 35.39 | 39.50 | 38.13 | 39.73 | 47.35 | 49.40 | 55.06 | 52.16 | 50.70 | 49.39 | 42.80 | 40.94 | 45.05 | |||||||||||||
1946 | 34.45 | 36.39 | 40.39 | 42.10 | 47.48 | 48.87 | 53.10 | 52.77 | 49.23 | 42.94 | 37.70 | 38.87 | 43.69 | |||||||||||||
1947 | 30.71 | 42.00 | 44.52 | 44.47 | 48.39 | 51.83 | 49.26 | 51.48 | 49.23 | 48.55 | 36.93 | 36.58 | 44.50 | |||||||||||||
1948 | 38.03 | 37.76 | 39.61 | 44.17 | 46.16 | 52.80 | 51.65 | 51.39 | 48.13 | 47.77 | 39.20 | 36.29 | 44.41 | |||||||||||||
1949 | 29.81 | 38.57 | 43.90 | 44.60 | 48.87 | 51.50 | 51.35 | 50.65 | 51.17 | 43.71 | 44.53 | 35.52 | 44.51 | |||||||||||||
1950 | 36.32 | 38.50 | 41.13 | 42.87 | 46.00 | 49.60 | 53.52 | 53.23 | 52.77 | 48.77 | 48.37 | 45.94 | 46.42 | |||||||||||||
1951 | 41.23 | 40.68 | 40.23 | 47.23 | 49.13 | 52.47 | 53.55 | 55.13 | 54.33 | 47.74 | 45.33 | 40.23 | a | 47.27 | ||||||||||||
1952 | 38.84 | 41.79 | 42.26 | 46.70 | 48.39 | 50.80 | 56.42 | 53.42 | 53.73 | 52.00 | a | 40.53 | 43.26 | 47.35 | ||||||||||||
1953 | 44.29 | 39.36 | 41.06 | 43.87 | 46.97 | 50.30 | 53.87 | 54.35 | 56.97 | 47.13 | 48.27 | 39.97 | 47.20 | |||||||||||||
1954 | 39.97 | 38.86 | 42.16 | 48.90 | 47.74 | 50.43 | 54.58 | 53.32 | 51.50 | 47.65 | 44.83 | 39.87 | 46.65 | |||||||||||||
1955 | 37.03 | 38.46 | 41.87 | a | 41.80 | 48.58 | 51.70 | 52.00 | 53.26 | 51.37 | 47.77 | 42.17 | 45.77 | a | 45.98 | |||||||||||
1956 | 44.17 | a | 37.62 | 41.06 | 46.55 | h | 50.71 | 50.57 | 55.35 | e | 54.42 | 53.40 | 48.06 | 40.21 | a | 36.90 | 46.59 | a | ||||||||
1957 | 37.26 | 47.07 | 46.58 | 47.13 | 51.26 | 54.27 | 55.42 | 53.16 | 56.00 | 51.58 | 43.03 | 40.65 | 48.62 | |||||||||||||
1958 | 41.42 | 49.21 | 42.48 | b | 46.27 | 52.45 | 56.43 | 58.10 | 58.61 | m | ----- | z | ----- | z | 41.33 | l | 40.81 | 48.40 | d | |||||||
1959 | 43.52 | 41.68 | 44.32 | 48.17 | 48.84 | 52.45 | h | 55.61 | 55.94 | 52.90 | 51.10 | 41.83 | 37.68 | 47.42 | a | |||||||||||
1960 | 39.12 | f | 40.23 | c | 45.55 | 44.17 | 46.71 | 55.60 | 55.65 | 53.33 | a | 52.73 | d | 47.62 | o | 41.89 | c | 39.00 | h | 48.43 | c | |||||
1961 | 37.81 | 43.07 | 42.80 | f | 44.63 | 46.06 | 53.23 | 54.90 | 58.13 | 52.57 | b | 48.07 | a | 42.47 | 39.04 | d | 47.27 | a | ||||||||
1962 | 35.71 | 43.46 | 42.13 | 46.31 | a | 47.44 | d | 51.62 | d | 52.84 | 54.94 | 52.13 | 50.71 | 45.07 | a | 40.90 | 46.94 | |||||||||
1963 | 35.11 | c | 47.96 | b | 41.72 | f | 44.62 | a | 50.48 | 51.83 | 52.69 | b | 53.53 | a | 54.71 | i | 50.13 | a | 44.76 | a | 36.72 | b | 46.78 | b | ||
1964 | 40.32 | 39.28 | 41.41 | b | 43.35 | d | 47.21 | c | 52.24 | a | 53.81 | d | 57.26 | 52.59 | h | 51.84 | 41.77 | 44.57 | a | 46.64 | a | |||||
1965 | 40.36 | f | 41.14 | 44.94 | 47.60 | 47.74 | 51.20 | 54.48 | 57.28 | b | 52.44 | u | 50.55 | 47.57 | 37.65 | 48.01 | b | |||||||||
1966 | 38.84 | 40.46 | 44.84 | 48.97 | a | 50.32 | 53.07 | 53.87 | a | 55.61 | 54.87 | 51.00 | 47.04 | b | 42.29 | 48.43 | ||||||||||
1967 | 41.90 | 41.79 | 44.41 | b | 43.46 | b | 50.39 | 53.81 | c | 56.42 | 57.10 | 58.10 | 51.38 | b | 48.77 | 39.71 | 48.94 | |||||||||
1968 | 38.55 | 48.83 | 45.68 | 45.47 | 48.77 | 53.57 | 55.71 | 57.06 | 55.43 | b | 49.71 | 47.60 | 41.32 | 48.97 | ||||||||||||
1969 | 41.48 | 43.18 | 43.55 | 45.83 | 51.87 | 55.47 | 56.14 | b | 54.19 | 55.61 | b | 50.35 | 44.00 | 45.86 | b | 48.96 | ||||||||||
1970 | 46.16 | 45.19 | a | 45.52 | b | 42.83 | 51.87 | 54.13 | 56.29 | 54.71 | 52.83 | 50.00 | 48.62 | a | 42.84 | 49.25 | ||||||||||
1971 | 40.90 | b | 42.04 | 44.23 | 45.13 | 49.39 | 52.54 | d | 55.29 | 57.10 | 55.50 | 46.32 | 43.03 | 38.59 | d | 47.50 | ||||||||||
1972 | 36.83 | a | 44.34 | 47.20 | f | 45.48 | e | 49.77 | a | 52.21 | a | 56.97 | a | 56.04 | c | 52.54 | b | 52.13 | a | 44.61 | b | 37.97 | b | 48.08 | a | |
1973 | 39.90 | a | 44.75 | 41.95 | j | ----- | z | ----- | z | ----- | z | 55.14 | b | 53.73 | a | 54.66 | a | 48.97 | a | 44.34 | a | 41.07 | a | 47.82 | d | |
1974 | 39.80 | a | 38.63 | a | 45.77 | a | 43.57 | 45.81 | 51.39 | b | 54.17 | a | 53.70 | a | 53.13 | 48.58 | 41.86 | b | 37.73 | a | 46.18 | |||||
1975 | 34.94 | 40.85 | a | 41.07 | a | 39.83 | 46.85 | d | 50.07 | 52.17 | a | 52.13 | 51.47 | 45.20 | a | 39.57 | 39.93 | a | 44.51 | |||||||
1976 | 36.81 | 41.37 | b | 41.97 | 44.27 | 51.13 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.11 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 38.15 | 41.05 | 42.36 | 43.94 | 47.09 | 50.17 | 52.61 | 52.37 | 50.58 | 46.97 | 41.82 | 38.81 | 45.24 | |||||||||||||
S.D. | 3.41 | 3.23 | 2.58 | 2.54 | 2.80 | 2.69 | 2.57 | 2.57 | 3.18 | 2.92 | 3.37 | 3.03 | 1.88 | |||||||||||||
SKEW | -0.08 | 0.33 | -0.36 | 0.11 | -0.22 | -0.26 | -0.22 | 0.03 | 0.08 | -0.36 | 0.15 | 0.27 | 0.42 | |||||||||||||
MAX | 46.16 | 49.21 | 48.03 | 50.47 | 52.45 | 56.43 | 58.10 | 58.13 | 58.10 | 52.13 | 48.77 | 45.94 | 49.25 | |||||||||||||
MIN | 29.81 | 33.00 | 34.58 | 37.97 | 40.97 | 43.20 | 47.03 | 46.29 | 43.67 | 39.68 | 34.87 | 32.61 | 41.97 | |||||||||||||
YRS | 72 | 74 | 70 | 72 | 73 | 71 | 74 | 73 | 70 | 71 | 72 | 73 | 63 |