YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 22.80 | p | ----- | z |
1905 | 20.26 | 22.89 | 33.52 | 37.47 | 46.63 | 55.92 | 56.97 | 57.73 | 52.15 | 40.03 | 30.82 | 17.11 | 39.29 | |||||||||||||
1906 | 20.27 | 27.34 | 33.00 | ----- | z | ----- | z | ----- | z | ----- | z | 55.93 | x | 49.84 | b | 39.82 | 32.13 | d | 28.35 | 32.97 | e | |||||
1907 | 25.18 | a | 32.70 | a | 38.50 | 42.48 | d | 42.60 | b | 52.05 | a | 58.85 | a | 58.30 | d | 50.27 | f | 41.87 | 28.92 | 24.13 | a | 40.51 | a | |||
1908 | 20.10 | 24.20 | a | 36.16 | 39.29 | b | 44.50 | c | 53.21 | a | 49.09 | n | 51.18 | f | 49.03 | 38.21 | c | 26.41 | c | 21.46 | g | 36.79 | c | |||
1909 | 27.22 | a | 21.54 | 28.34 | c | 36.66 | b | 42.40 | b | 53.46 | b | 58.93 | c | 57.96 | d | 48.28 | g | 41.34 | b | 32.18 | b | 13.66 | c | 37.61 | a | |
1910 | 22.26 | b | 20.82 | 36.73 | 39.70 | 47.21 | 55.81 | a | 59.68 | 58.71 | 53.17 | 40.35 | d | 34.55 | a | 25.63 | a | 41.22 | ||||||||
1911 | 28.16 | 21.55 | f | 33.73 | a | 37.77 | 45.32 | a | 53.42 | 56.45 | 55.27 | 52.28 | 38.93 | a | 24.38 | 14.93 | b | 40.06 | a | |||||||
1912 | 20.60 | 21.64 | 29.64 | b | 33.14 | e | 44.60 | b | 50.90 | 56.93 | a | 56.61 | 46.15 | 39.72 | a | 30.09 | a | 16.82 | a | 37.24 | ||||||
1913 | 17.55 | c | 21.11 | 26.47 | 38.02 | 45.63 | a | 52.67 | 57.39 | 56.76 | 47.28 | 38.75 | a | 34.62 | a | 11.48 | 37.31 | |||||||||
1914 | 24.03 | 23.21 | b | 30.98 | 38.02 | b | 46.81 | 55.35 | 58.35 | 56.37 | a | 52.18 | 40.15 | 32.20 | 14.83 | a | 39.37 | |||||||||
1915 | 16.13 | d | 21.23 | b | 24.77 | c | 40.71 | d | 44.85 | d | 53.92 | d | 58.02 | d | 55.27 | 49.31 | f | 40.82 | 30.07 | 22.76 | d | 37.14 | a | |||
1916 | 22.55 | a | 24.80 | a | 35.98 | a | 41.93 | a | 48.23 | 56.00 | a | 58.72 | a | 59.55 | 53.83 | 44.28 | b | 34.62 | a | 20.85 | e | 41.78 | ||||
1917 | 18.23 | 20.27 | 24.97 | 37.22 | 41.40 | 55.60 | 60.65 | 56.19 | 51.89 | b | 41.60 | 33.60 | 27.81 | 39.12 | ||||||||||||
1918 | 15.92 | 24.43 | 32.35 | 37.78 | 46.79 | 58.15 | 58.95 | 56.67 | a | 50.79 | a | 42.89 | 27.20 | 14.68 | 38.88 | |||||||||||
1919 | 10.39 | 14.82 | 24.08 | 40.05 | 47.84 | 51.87 | 59.26 | 56.63 | 53.02 | 40.05 | a | 28.77 | 23.95 | 37.56 | ||||||||||||
1920 | 23.31 | 28.16 | 28.96 | c | 32.55 | 43.88 | a | 51.33 | d | 56.03 | a | 54.45 | a | 47.92 | 38.97 | a | 27.23 | 16.64 | b | 37.45 | ||||||
1921 | 25.85 | 24.45 | 33.53 | 34.00 | 45.18 | 52.62 | 57.19 | 56.39 | 50.98 | 43.23 | a | 31.87 | 29.55 | 40.40 | ||||||||||||
1922 | 17.13 | a | 23.50 | a | 29.53 | a | 38.03 | 46.62 | c | 55.87 | 60.16 | 58.71 | 52.12 | 40.18 | 28.35 | 25.16 | 39.61 | |||||||||
1923 | 25.40 | 23.12 | 27.87 | 37.88 | a | 47.92 | 54.62 | 60.27 | 58.05 | 50.30 | ----- | z | 28.50 | a | 20.60 | a | 39.50 | a | ||||||||
1924 | 13.34 | 26.88 | 23.76 | 36.50 | 46.27 | 56.85 | 61.82 | 56.13 | 51.17 | 41.94 | 34.18 | 17.63 | a | 38.87 | ||||||||||||
1925 | 12.40 | 25.14 | 35.89 | 44.84 | a | 52.06 | 57.75 | f | 62.92 | a | 58.70 | a | 52.77 | 42.44 | 26.83 | 19.71 | 39.43 | a | ||||||||
1926 | 13.37 | 25.81 | a | 30.77 | k | 40.10 | 49.38 | k | 63.32 | ----- | z | ----- | z | 53.19 | n | 42.71 | 32.90 | 24.13 | l | 36.37 | f | |||||
1927 | 24.69 | 28.22 | a | 29.00 | a | 38.52 | a | 47.42 | 52.94 | c | 54.98 | 54.41 | c | 49.08 | 38.11 | 32.31 | f | 13.69 | e | 39.19 | a | |||||
1928 | 23.27 | 18.54 | a | 32.74 | d | 36.11 | b | 45.22 | b | 52.36 | a | 55.05 | 54.02 | a | 47.69 | a | 40.40 | 26.93 | h | 18.37 | p | 40.54 | b | |||
1929 | 15.21 | 17.41 | 29.33 | e | 37.66 | a | 45.25 | c | 53.18 | b | 56.77 | a | 54.29 | 49.87 | 38.02 | b | 21.24 | a | 18.76 | b | 36.41 | |||||
1930 | 13.74 | b | 28.27 | d | 26.37 | 41.65 | 43.02 | a | 52.84 | a | 55.74 | 54.29 | 47.27 | 38.89 | 21.73 | 8.09 | c | 35.99 | ||||||||
1931 | 14.42 | a | 21.82 | 24.77 | 39.45 | 43.15 | a | 54.22 | 57.15 | 55.23 | a | 51.43 | 39.66 | 24.68 | 18.17 | a | 37.01 | |||||||||
1932 | 13.72 | a | 28.45 | 28.69 | 39.29 | a | 44.39 | 50.65 | 56.56 | 55.72 | a | 47.72 | a | 37.95 | b | 28.69 | a | 15.37 | a | 37.27 | ||||||
1933 | 16.32 | a | 16.90 | b | 32.32 | 34.89 | b | 43.22 | a | 52.98 | 57.61 | 56.98 | 54.36 | a | 39.55 | 30.93 | 25.18 | a | 38.44 | |||||||
1934 | 17.88 | c | 25.15 | a | 33.37 | a | 37.78 | a | 49.40 | 54.35 | 60.19 | 59.03 | 50.60 | 43.58 | 25.96 | b | 22.76 | 40.00 | ||||||||
1935 | 25.62 | a | 24.34 | 31.87 | 38.92 | 42.80 | a | 53.79 | b | 56.88 | c | 57.37 | a | 49.21 | a | 42.48 | 31.40 | a | 20.87 | a | 39.63 | |||||
1936 | 21.72 | b | 24.28 | 35.02 | 40.57 | 48.90 | 57.75 | 58.77 | a | 59.24 | 50.73 | 41.05 | b | 31.21 | a | 24.00 | 41.10 | |||||||||
1937 | 12.15 | e | 22.22 | c | 28.15 | a | 39.27 | 48.87 | a | 54.59 | a | 58.14 | b | 59.03 | a | 53.22 | 43.20 | a | 33.02 | a | 27.75 | a | 39.97 | |||
1938 | 24.09 | c | 28.25 | 32.75 | a | 39.98 | a | 44.45 | 54.65 | 56.23 | a | 57.31 | 50.73 | 41.79 | 28.10 | a | 24.00 | a | 40.20 | |||||||
1939 | 16.03 | a | 13.93 | a | 31.83 | a | 40.57 | 47.35 | 53.90 | 56.05 | i | 51.29 | l | 48.73 | q | 40.56 | 24.79 | a | 22.33 | b | 32.37 | c | ||||
1940 | 13.89 | d | 21.83 | c | 29.78 | b | 35.78 | a | 43.60 | a | 50.98 | c | 53.81 | 52.18 | a | 47.85 | 38.97 | a | 25.90 | a | 19.21 | c | 36.15 | |||
1941 | 12.38 | b | 21.32 | 26.00 | a | 33.16 | a | 46.21 | b | 47.57 | b | 52.63 | a | 52.52 | a | 47.10 | 37.30 | a | ----- | z | ----- | z | 37.62 | b | ||
1942 | ----- | z | 12.50 | y | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.77 | ----- | z | ----- | z | ----- | z | ----- | z | 52.77 | k | |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.06 | e | 61.92 | 51.73 | 41.06 | 30.00 | 18.53 | 42.72 | f | |||||
1944 | 17.15 | a | 20.69 | b | 26.18 | 35.23 | 45.42 | 54.30 | 57.52 | 58.02 | 51.74 | a | 42.61 | 30.92 | 25.37 | 38.76 | ||||||||||
1945 | 19.74 | 25.93 | 28.48 | a | 35.03 | 46.29 | 52.15 | 59.10 | 60.10 | 51.45 | 42.74 | 31.78 | 18.05 | 39.24 | ||||||||||||
1946 | 15.45 | 22.32 | 32.08 | 42.03 | 43.73 | a | 56.15 | 59.48 | a | 58.81 | 52.82 | 41.31 | 26.33 | 25.58 | 39.67 | |||||||||||
1947 | 17.45 | 26.75 | 29.26 | 38.73 | 48.05 | 46.07 | ----- | z | ----- | z | ----- | z | 40.90 | j | 18.52 | a | 15.12 | a | 29.99 | d | ||||||
1948 | 17.03 | a | 20.67 | w | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.03 | k |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.85 | 23.37 | 30.42 | 38.22 | 45.73 | 53.80 | 57.76 | 56.78 | 50.60 | 40.69 | 29.12 | 20.24 | 38.81 | |||||||||||||
S.D. | 4.77 | 3.88 | 3.82 | 2.71 | 2.27 | 2.88 | 2.25 | 2.21 | 2.16 | 1.78 | 3.87 | 5.15 | 1.58 | |||||||||||||
SKEW | 0.21 | -0.26 | 0.08 | -0.08 | 0.39 | 0.30 | -0.17 | -0.15 | -0.35 | 0.05 | -0.69 | -0.16 | -0.13 | |||||||||||||
MAX | 28.16 | 32.70 | 38.50 | 44.84 | 52.06 | 63.32 | 62.92 | 61.92 | 54.36 | 44.28 | 34.62 | 29.55 | 41.78 | |||||||||||||
MIN | 10.39 | 13.93 | 23.76 | 32.55 | 41.40 | 46.07 | 52.63 | 52.18 | 46.15 | 37.30 | 18.52 | 8.09 | 35.99 | |||||||||||||
YRS | 42 | 40 | 40 | 40 | 39 | 39 | 37 | 38 | 36 | 40 | 39 | 38 | 27 |