YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
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 | 42.90 | 55.60 | 65.03 | 74.17 | 76.39 | 74.61 | 68.97 | 57.81 | 52.67 | 43.35 | 61.15 | b | ||||||||||
1898 | 39.29 | 45.32 | 45.94 | 58.20 | 64.90 | 73.73 | 77.77 | 75.81 | 71.97 | 62.13 | 47.83 | 38.52 | 58.45 | |||||||||||||
1899 | 40.69 | b | 36.75 | ----- | z | 59.37 | 68.52 | 75.83 | 76.77 | 78.61 | 73.50 | 61.03 | 51.77 | 47.42 | 60.93 | a | ||||||||||
1900 | 47.87 | 47.25 | 53.74 | 54.45 | j | 68.13 | a | 79.00 | a | 80.26 | 79.71 | 67.30 | 59.13 | 52.97 | 45.42 | 61.89 | a | |||||||||
1901 | 45.27 | a | 45.00 | 46.83 | a | 50.38 | n | 68.33 | y | 72.27 | s | 77.25 | s | 77.81 | o | 69.08 | q | ----- | z | 52.41 | a | 45.97 | 47.10 | g | ||
1902 | 46.61 | m | 45.71 | d | 43.03 | 61.30 | 64.19 | 78.30 | 74.83 | a | 76.48 | d | 70.37 | 62.60 | a | 49.37 | 45.32 | 61.05 | a | |||||||
1903 | 40.93 | a | 35.93 | 47.68 | 54.11 | b | 62.24 | b | 67.33 | 76.74 | 76.29 | 67.30 | 64.62 | g | 55.41 | a | 49.55 | b | 57.59 | a | ||||||
1904 | 40.10 | b | 48.79 | a | 52.00 | e | 59.32 | b | 65.50 | e | 70.68 | h | 74.41 | n | 73.55 | ----- | z | ----- | z | ----- | z | 48.07 | a | 55.33 | e | |
1905 | ----- | z | 42.82 | 47.26 | 49.80 | 62.84 | 73.73 | 73.68 | 77.30 | d | 71.08 | f | ----- | z | 48.03 | 39.52 | 57.22 | c | ||||||||
1906 | 46.03 | b | 45.20 | c | 49.61 | c | 59.25 | j | ----- | z | 78.25 | f | 76.07 | p | 72.76 | b | 66.20 | o | 58.94 | 49.36 | b | 47.16 | l | 53.65 | f | |
1907 | 41.87 | 51.75 | 55.71 | 57.63 | 57.13 | a | 71.27 | 77.81 | 74.77 | 70.90 | a | 63.90 | k | 45.33 | i | 43.81 | j | 62.09 | c | |||||||
1908 | 44.89 | l | 42.62 | h | 52.04 | g | 55.62 | a | 61.06 | 73.08 | d | 72.32 | i | 72.06 | 72.80 | ----- | z | 49.14 | b | 46.97 | a | 61.53 | e | |||
1909 | 47.73 | a | 40.96 | 43.55 | 52.93 | 62.63 | d | 79.10 | 83.42 | 81.48 | ----- | z | 59.79 | b | 52.47 | 37.26 | 58.30 | a | ||||||||
1910 | 40.29 | 39.64 | c | 55.88 | g | 58.56 | e | 66.44 | f | 82.40 | t | 81.68 | 79.09 | i | ----- | z | 50.86 | i | 47.53 | 43.50 | q | 53.54 | g | |||
1911 | 45.64 | t | 38.61 | 47.56 | d | 55.07 | 65.16 | 75.40 | y | 74.00 | q | 76.22 | v | 70.67 | u | 54.42 | s | 44.12 | m | 35.52 | d | 48.38 | g | |||
1912 | 41.00 | 40.68 | a | 43.43 | a | 41.45 | a | 53.16 | 54.96 | e | ----- | z | 75.13 | 67.80 | 60.37 | a | 51.77 | 41.55 | 51.94 | a | ||||||
1913 | 43.68 | 42.33 | a | 43.84 | 55.68 | b | 66.03 | a | 67.97 | a | 71.65 | 71.71 | 62.60 | 55.26 | 51.41 | a | 37.13 | a | 55.77 | |||||||
1914 | 42.43 | a | 38.73 | b | 46.48 | 52.77 | 60.77 | 71.59 | a | 69.47 | a | 69.82 | c | 68.11 | b | 55.04 | c | 52.44 | e | 34.74 | 55.20 | |||||
1915 | 35.65 | 40.19 | a | 39.52 | 52.21 | a | 57.94 | 70.77 | 72.45 | 70.03 | 64.20 | 59.84 | 48.37 | 40.00 | a | 54.26 | ||||||||||
1916 | 36.84 | 42.86 | a | 49.65 | 51.87 | 64.07 | a | 73.10 | 72.35 | 70.23 | 67.37 | 56.10 | 49.07 | 36.87 | h | 57.59 | a | |||||||||
1917 | 36.03 | a | 40.57 | 42.55 | 51.88 | d | 55.23 | 72.83 | a | 74.23 | 71.68 | 73.10 | 68.06 | 54.37 | 49.52 | 57.50 | ||||||||||
1918 | 35.42 | 44.39 | 48.90 | 51.67 | 62.58 | 75.57 | 75.19 | 74.55 | 68.43 | 61.55 | 45.90 | 40.23 | a | 57.03 | ||||||||||||
1919 | 41.61 | 36.86 | 42.81 | 53.17 | 62.52 | 68.37 | 72.19 | 75.23 | 68.07 | 54.16 | 48.37 | 46.94 | 55.86 | |||||||||||||
1920 | 45.71 | 43.52 | 42.52 | 45.76 | a | 60.32 | 69.43 | 77.06 | 73.45 | 66.17 | 51.61 | 43.67 | 40.77 | a | 55.00 | |||||||||||
1921 | 40.83 | b | 43.96 | 50.27 | a | 50.76 | a | 59.81 | 69.37 | 72.87 | 70.97 | 70.10 | 61.19 | 53.87 | 48.11 | d | 57.68 | |||||||||
1922 | 38.94 | 43.00 | 47.00 | 55.27 | 67.00 | 76.20 | 79.87 | 78.77 | 73.00 | 63.74 | 46.47 | 43.00 | 59.35 | |||||||||||||
1923 | 44.35 | 42.82 | 44.26 | 53.47 | 68.03 | 77.63 | 78.45 | 73.77 | 67.40 | 53.77 | a | 49.83 | 41.55 | 57.95 | ||||||||||||
1924 | 41.06 | 47.57 | a | 41.84 | 54.00 | 64.81 | 78.72 | a | 75.70 | a | 78.29 | 73.33 | 63.13 | 56.00 | 36.83 | a | 59.27 | |||||||||
1925 | 41.29 | 46.86 | 53.52 | 61.13 | 69.93 | a | 74.03 | 76.58 | 71.87 | 68.53 | 58.84 | 50.07 | 43.87 | 59.71 | ||||||||||||
1926 | 38.84 | 46.32 | 45.48 | 51.60 | 60.94 | 72.00 | 73.42 | 76.74 | 71.40 | 65.55 | 53.34 | a | 44.87 | a | 58.38 | |||||||||||
1927 | 47.87 | a | 43.80 | c | 47.90 | 57.27 | 70.50 | a | 72.10 | 78.29 | 73.77 | a | 67.48 | a | 62.50 | i | 59.30 | 40.93 | a | 59.93 | a | |||||
1928 | 50.43 | a | 42.25 | a | 50.29 | 51.93 | 63.30 | a | 73.70 | 77.97 | 72.90 | 73.43 | 62.74 | 48.62 | a | 44.72 | b | 59.36 | ||||||||
1929 | 40.65 | 37.72 | c | 44.97 | a | 55.10 | a | 63.42 | 75.33 | 74.48 | 72.60 | a | 68.30 | 58.00 | 46.97 | 49.93 | a | 57.29 | ||||||||
1930 | 37.68 | 49.25 | 46.26 | 62.10 | 62.39 | h | 77.30 | 74.37 | a | 75.19 | 70.71 | b | 60.06 | 51.86 | a | 44.45 | 59.02 | a | ||||||||
1931 | 46.10 | 43.21 | 46.87 | 55.27 | 64.39 | 77.87 | 79.13 | 76.10 | 71.00 | 62.35 | 48.10 | a | 45.16 | 59.63 | ||||||||||||
1932 | 36.90 | a | 45.93 | 45.77 | 57.43 | 63.97 | 73.13 | 76.61 | 75.81 | 69.30 | c | 59.42 | 57.07 | a | 39.68 | 58.42 | ||||||||||
1933 | 42.03 | 38.93 | a | 50.52 | 53.07 | 63.74 | 73.73 | 78.23 | 76.19 | 76.30 | 65.61 | 56.67 | 50.97 | 60.50 | ||||||||||||
1934 | 47.26 | 49.15 | a | 56.23 | 61.27 | 71.81 | 76.77 | 78.80 | f | 77.35 | 68.37 | 65.32 | 52.33 | 44.61 | 60.95 | a | ||||||||||
1935 | 46.90 | 44.41 | a | 48.65 | 55.97 | 57.19 | 75.83 | 79.26 | 75.90 | 71.87 | 61.10 | 51.10 | 44.10 | 59.36 | ||||||||||||
1936 | 42.42 | 41.66 | 51.68 | 58.53 | 67.16 | 78.37 | 82.39 | 77.45 | 70.53 | 60.34 | b | 52.97 | 44.42 | 60.66 | ||||||||||||
1937 | 37.97 | a | 43.18 | 44.19 | 56.97 | 64.32 | 72.97 | 80.13 | 80.33 | a | 73.67 | 63.84 | 52.27 | 40.23 | a | 59.17 | ||||||||||
1938 | 41.63 | d | 43.32 | 47.57 | a | 57.96 | b | 61.86 | b | 74.23 | d | 78.72 | b | 78.45 | k | 70.61 | b | 64.00 | a | 44.97 | a | 44.23 | a | 57.19 | a | |
1939 | 36.10 | 30.36 | 47.18 | c | 50.30 | j | 62.93 | b | 77.07 | c | 79.52 | b | ----- | z | 68.70 | c | 55.16 | 53.34 | a | ----- | z | 56.71 | c | |||
1940 | ----- | z | ----- | z | ----- | z | 57.07 | a | 67.10 | 77.23 | 79.87 | 77.00 | q | 70.55 | h | 64.00 | 50.57 | ----- | z | 65.97 | f | |||||
1941 | ----- | z | ----- | z | ----- | z | 49.93 | 67.19 | 70.30 | 76.26 | 75.37 | a | 67.87 | 59.70 | a | 54.70 | c | ----- | z | 65.17 | d | |||||
1942 | ----- | z | ----- | z | ----- | z | 54.07 | a | 66.23 | a | 78.63 | 78.41 | b | 75.35 | 71.47 | 62.42 | 55.00 | i | ----- | z | 69.51 | e | ||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 75.35 | g | 77.71 | 79.00 | 75.00 | m | ----- | z | ----- | z | ----- | z | 78.35 | j | ||
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.72 | l | 78.29 | 76.32 | 70.73 | 60.87 | ----- | z | ----- | z | 71.55 | h | ||||
1945 | ----- | z | ----- | z | ----- | z | 53.00 | p | 67.00 | 72.40 | 76.26 | 77.42 | 70.87 | 63.35 | 51.17 | ----- | z | 68.35 | e | |||||||
1946 | ----- | z | ----- | z | ----- | z | ----- | z | 62.39 | 79.20 | 76.35 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.65 | i | |||
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.83 | f | 45.29 | g | ----- | z |
1949 | 37.60 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.50 | g | 59.54 | d | 45.70 | h | 59.54 | k |
1950 | 42.42 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.42 | k |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 77.85 | d | 78.03 | a | 74.84 | 71.33 | 65.16 | 54.80 | 44.87 | 66.70 | e | |||||
1955 | 36.81 | 38.75 | 47.65 | 54.10 | a | 62.70 | a | 74.20 | 75.81 | 71.97 | 71.60 | 62.52 | 49.23 | 43.97 | 57.44 | |||||||||||
1956 | 44.06 | 40.21 | 51.35 | 55.57 | 69.53 | a | 79.43 | 74.55 | 73.35 | 75.93 | 64.42 | 45.63 | 41.58 | 59.64 | ||||||||||||
1957 | 39.23 | 50.18 | 49.32 | 55.53 | 59.32 | 74.60 | 76.77 | 71.35 | 69.93 | c | 54.10 | 39.66 | a | 43.45 | 56.95 | |||||||||||
1958 | 38.45 | 44.14 | 40.23 | 50.67 | 66.23 | 76.43 | 79.65 | 75.94 | 67.40 | 57.48 | 50.30 | 45.19 | 57.68 | |||||||||||||
1959 | 42.19 | 39.21 | 46.41 | d | 59.73 | 63.52 | 74.50 | 78.10 | 75.58 | 71.70 | 59.26 | 50.03 | 44.39 | 58.72 | ||||||||||||
1960 | 36.38 | b | 37.54 | a | 47.74 | 58.07 | 65.48 | 76.40 | 74.70 | a | 76.61 | 71.27 | 57.42 | 51.00 | 39.10 | a | 57.64 | |||||||||
1961 | 42.61 | 43.00 | 45.80 | a | 54.80 | 65.94 | 75.60 | 79.33 | a | 72.65 | 66.55 | s | ----- | z | 47.00 | u | 38.29 | 57.56 | c | |||||||
1962 | 40.77 | a | ----- | z | 45.94 | n | ----- | z | ----- | z | 74.41 | a | 73.87 | 78.90 | ----- | z | ----- | z | ----- | z | ----- | z | 66.99 | h | ||
1963 | 36.90 | 44.32 | 46.71 | 57.20 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 46.28 | h | ||||
1964 | 39.30 | a | 36.34 | 44.19 | 52.93 | 65.16 | 76.54 | b | 72.93 | d | 69.97 | 64.96 | b | 60.55 | ----- | z | ----- | z | 58.29 | b | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.36 | 42.62 | 47.05 | 54.96 | 63.90 | 74.23 | 76.73 | 74.98 | 69.96 | 60.40 | 50.90 | 43.18 | 57.99 | |||||||||||||
S.D. | 3.74 | 4.18 | 3.72 | 3.90 | 3.77 | 4.10 | 2.89 | 2.82 | 2.82 | 3.64 | 3.81 | 3.95 | 1.67 | |||||||||||||
SKEW | 0.39 | -0.26 | 0.40 | -0.76 | -0.51 | -2.04 | -0.13 | 0.05 | -0.15 | -0.35 | -0.17 | -0.16 | -0.52 | |||||||||||||
MAX | 50.43 | 51.75 | 56.23 | 62.10 | 71.81 | 79.43 | 83.42 | 81.48 | 76.30 | 68.06 | 59.54 | 50.97 | 60.66 | |||||||||||||
MIN | 35.42 | 30.36 | 39.52 | 41.45 | 53.16 | 54.96 | 69.47 | 69.82 | 62.60 | 51.61 | 39.66 | 34.74 | 54.26 | |||||||||||||
YRS | 49 | 50 | 49 | 51 | 52 | 53 | 53 | 53 | 48 | 47 | 51 | 46 | 28 |