YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1907 | 31.12 | c | 36.54 | 43.75 | a | 43.03 | 49.37 | 61.70 | 69.92 | 68.95 | 63.27 | b | 51.39 | 36.45 | a | 28.03 | 48.63 | |||||||||
1908 | 29.93 | b | 29.00 | 40.57 | a | 47.52 | b | 52.71 | 63.16 | a | 68.53 | 68.06 | 63.87 | 46.92 | 34.98 | 22.74 | 47.33 | |||||||||
1909 | 26.44 | 29.06 | b | 34.48 | 41.21 | a | 51.35 | 62.97 | 70.18 | 70.77 | 60.12 | 48.60 | a | 37.70 | ----- | z | 48.44 | a | ||||||||
1910 | 27.39 | 26.63 | a | 46.56 | 48.10 | j | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.44 | 41.17 | a | 32.44 | 37.94 | f | ||||
1911 | 33.78 | a | 27.34 | 42.00 | 46.63 | 53.89 | 69.37 | 69.89 | 69.35 | 67.02 | 46.92 | 33.80 | 23.39 | 48.61 | ||||||||||||
1912 | 24.19 | 27.59 | 24.82 | a | 44.55 | 55.34 | 61.17 | 68.37 | 67.40 | 55.10 | 48.87 | a | 40.29 | a | 27.10 | a | 45.40 | |||||||||
1913 | 24.55 | 19.79 | b | 33.68 | 46.33 | 57.48 | 64.73 | 70.97 | 72.66 | 57.30 | 45.48 | 41.55 | a | 21.27 | c | 46.32 | ||||||||||
1914 | 30.47 | 27.78 | c | 36.85 | 47.57 | a | 56.13 | 66.40 | 70.94 | 71.18 | 65.03 | 52.37 | 43.32 | 20.32 | 49.03 | |||||||||||
1915 | 23.62 | a | 33.45 | 30.19 | 49.48 | 51.73 | 59.27 | 66.92 | 65.55 | 61.93 | 54.18 | 42.50 | 35.77 | 47.88 | ||||||||||||
1916 | 25.33 | a | 35.84 | a | 45.19 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.42 | ----- | z | ----- | z | 21.32 | 37.82 | g | |||
1917 | 23.73 | 31.18 | 31.08 | ----- | z | 48.19 | 63.53 | 73.34 | 67.89 | 64.55 | 47.19 | ----- | z | ----- | z | 50.08 | c | |||||||||
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 | 38.43 | b | 44.05 | a | 57.13 | a | 59.79 | d | 70.26 | f | 68.82 | a | 60.70 | g | 48.69 | d | 37.10 | f | 27.37 | e | 49.18 | e |
1929 | 26.15 | e | 20.69 | b | 38.69 | b | 47.89 | c | 56.24 | d | 66.80 | 73.14 | b | 72.55 | c | 60.48 | d | 51.38 | e | 27.43 | c | 32.50 | c | 47.83 | ||
1930 | 15.77 | a | 41.16 | c | 35.81 | e | 52.73 | b | 54.38 | e | 66.45 | b | 73.05 | 70.52 | c | 62.65 | d | 49.20 | d | 36.25 | 23.53 | 48.46 | ||||
1931 | 26.92 | f | 34.44 | a | 31.21 | b | 45.02 | g | 54.40 | a | 68.10 | 73.56 | 70.39 | l | ----- | z | 53.08 | e | 40.92 | j | 28.33 | h | 52.47 | f | ||
1932 | ----- | z | 36.38 | m | 29.45 | 47.28 | 57.65 | 63.65 | 73.90 | 71.69 | b | 61.18 | 46.84 | b | 44.53 | o | 18.60 | b | 52.25 | c | ||||||
1933 | 31.39 | 25.73 | 38.65 | a | 43.82 | 54.79 | 71.53 | 73.52 | 69.26 | 65.92 | 55.37 | h | 43.52 | 37.98 | 50.55 | a | ||||||||||
1934 | 36.52 | 34.84 | c | ----- | z | ----- | z | ----- | z | 70.25 | h | 77.24 | 72.98 | 58.97 | 55.74 | 41.13 | 31.08 | 51.06 | d | |||||||
1935 | 34.98 | 34.19 | b | 40.25 | a | 43.47 | 47.98 | a | 63.98 | 74.10 | 72.34 | 61.87 | 49.85 | 35.46 | b | 29.84 | 49.03 | |||||||||
1936 | 26.42 | 20.40 | 38.16 | 46.88 | 58.08 | 69.50 | 75.52 | 72.77 | a | 62.14 | b | 46.95 | 38.60 | 31.66 | 48.92 | |||||||||||
1937 | 16.37 | 29.23 | 33.50 | 45.92 | 57.68 | 64.45 | 74.58 | 74.68 | 64.00 | 51.94 | 38.07 | a | 28.92 | 48.28 | ||||||||||||
1938 | 29.61 | 34.86 | 41.13 | 46.77 | 54.52 | 66.97 | 72.52 | 73.77 | 63.87 | 54.34 | 33.95 | 29.47 | 50.15 | |||||||||||||
1939 | 30.16 | 22.82 | 36.97 | 45.70 | 58.64 | b | 65.70 | 72.63 | a | 69.63 | a | 64.78 | 50.84 | 38.30 | 35.70 | a | 49.32 | |||||||||
1940 | 19.88 | b | 32.41 | 37.27 | a | 43.37 | 55.89 | 66.02 | d | 73.93 | a | 69.35 | a | 63.75 | 54.50 | 34.88 | a | 31.95 | 48.60 | |||||||
1941 | 30.84 | 31.55 | 34.69 | 44.78 | 57.73 | 62.25 | 68.79 | 69.44 | 60.65 | 49.19 | 40.45 | 30.08 | 48.37 | |||||||||||||
1942 | 24.47 | 21.54 | 33.84 | 50.02 | 53.92 | 63.05 | a | 70.73 | 68.89 | 60.23 | 50.35 | 40.77 | 31.00 | 47.40 | ||||||||||||
1943 | 29.76 | 37.55 | 34.18 | 51.80 | 51.10 | 63.83 | 72.90 | 73.84 | 61.05 | 50.23 | a | 38.19 | a | 30.97 | 49.62 | |||||||||||
1944 | 28.87 | 30.46 | b | 32.95 | b | 40.74 | a | 57.16 | 65.22 | a | 70.17 | a | 71.11 | 62.40 | 52.63 | a | 37.78 | 25.26 | 47.90 | |||||||
1945 | 28.07 | b | 30.89 | 41.45 | a | 40.34 | b | 55.53 | 59.55 | 71.02 | a | 70.94 | 59.92 | 52.44 | 44.39 | l | 28.98 | 49.01 | a | |||||||
1946 | 30.76 | 35.37 | a | 41.58 | 55.12 | 52.80 | a | 68.28 | 73.74 | 73.30 | u | 63.72 | 50.15 | 28.73 | q | ----- | z | 52.39 | c | |||||||
1947 | 31.03 | o | 27.67 | a | 34.77 | a | 45.81 | a | 55.03 | ----- | z | ----- | z | 73.05 | 66.57 | 57.05 | 33.43 | a | 32.31 | 47.30 | c | |||||
1948 | 27.44 | 27.59 | 31.15 | 51.70 | 56.87 | 63.68 | m | 71.31 | 71.58 | 67.67 | f | 50.95 | t | 34.33 | 28.09 | c | 44.45 | c | ||||||||
1949 | 18.31 | 30.68 | 38.23 | 48.57 | 56.97 | 64.45 | 71.84 | 69.48 | 61.26 | g | ----- | z | ----- | z | 32.00 | 47.84 | c | |||||||||
1950 | 23.67 | p | 37.80 | ----- | z | ----- | z | 53.87 | 67.78 | 68.47 | 67.60 | 59.82 | 58.65 | 38.42 | 35.06 | 54.16 | c | |||||||||
1951 | 26.27 | 32.96 | 34.24 | 43.13 | 56.47 | 56.59 | m | ----- | z | 69.98 | 61.32 | 49.66 | 35.05 | 28.03 | 43.71 | b | ||||||||||
1952 | 31.35 | 32.36 | ----- | z | 50.42 | q | 55.27 | 72.32 | 73.08 | 72.63 | 64.06 | c | 51.72 | f | 31.93 | 28.45 | 51.27 | c | ||||||||
1953 | 36.29 | 30.61 | 41.25 | a | 41.75 | 49.91 | d | 70.07 | a | 73.29 | 70.11 | 65.02 | 53.57 | b | 40.62 | 27.71 | 50.02 | |||||||||
1954 | 32.03 | ----- | z | 33.66 | 52.55 | 54.47 | a | 69.83 | a | 76.53 | b | 70.84 | 65.97 | 49.21 | 40.88 | 32.29 | 52.57 | a | ||||||||
1955 | 23.56 | 24.48 | a | 33.90 | a | 46.85 | 56.50 | b | 60.50 | 74.31 | 69.12 | b | ----- | z | ----- | z | ----- | z | ----- | z | 48.65 | d | ||||
1956 | ----- | z | ----- | z | ----- | z | 45.16 | b | 60.63 | 72.40 | a | 70.89 | 69.10 | a | 64.40 | 53.60 | 34.25 | 34.32 | 56.08 | c | ||||||
1957 | 22.50 | 37.43 | 36.68 | 41.68 | 52.73 | 64.30 | 73.37 | 70.92 | a | 60.85 | 49.76 | 34.91 | a | 35.81 | 48.41 | |||||||||||
1958 | 29.92 | 34.04 | 28.10 | 42.55 | 59.18 | a | 66.52 | 68.35 | 72.36 | i | 57.90 | o | 56.70 | p | ----- | z | ----- | z | 46.95 | e | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 27.45 | 30.47 | 36.30 | 46.19 | 54.86 | 65.43 | 72.04 | 70.51 | 62.43 | 51.01 | 37.51 | 29.20 | 48.36 | |||||||||||||
S.D. | 5.05 | 5.28 | 4.82 | 3.67 | 2.98 | 3.54 | 2.42 | 2.06 | 2.63 | 3.10 | 3.68 | 4.76 | 1.13 | |||||||||||||
SKEW | -0.45 | -0.31 | -0.02 | 0.52 | -0.58 | 0.20 | -0.10 | -0.03 | -0.52 | 0.39 | -0.43 | -0.42 | -0.81 | |||||||||||||
MAX | 36.52 | 41.16 | 46.56 | 55.12 | 60.63 | 72.40 | 77.24 | 74.68 | 67.02 | 58.65 | 43.52 | 37.98 | 50.15 | |||||||||||||
MIN | 15.77 | 19.79 | 24.82 | 40.34 | 47.98 | 59.27 | 66.92 | 65.55 | 55.10 | 45.48 | 27.43 | 18.60 | 45.40 | |||||||||||||
YRS | 36 | 38 | 38 | 35 | 39 | 36 | 37 | 37 | 35 | 35 | 32 | 36 | 21 |