YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1909 | ----- | z | ----- | z | 35.95 | a | 45.02 | a | 51.38 | b | 64.70 | 70.52 | 67.71 | 58.03 | 48.79 | s | 40.29 | a | 20.84 | 50.49 | c | |||||
1910 | 27.81 | 28.66 | 46.82 | c | 50.28 | 57.65 | 67.98 | 72.70 | c | 70.77 | a | 63.69 | a | 50.87 | 46.25 | 31.00 | 51.21 | |||||||||
1911 | 35.16 | b | 30.65 | a | 42.08 | 48.80 | 57.37 | ----- | z | 65.35 | 72.57 | a | ----- | z | ----- | z | ----- | z | 24.26 | 47.03 | d | |||||
1912 | 30.66 | 32.38 | 39.55 | 44.25 | 55.89 | 62.18 | 67.77 | 66.98 | 57.83 | 48.52 | 36.77 | 27.81 | j | 49.34 | a | |||||||||||
1913 | 23.50 | c | 31.41 | 37.28 | a | 47.10 | a | 57.77 | 63.43 | 69.45 | 67.95 | 57.43 | 46.69 | 41.69 | d | 25.66 | c | 47.45 | ||||||||
1914 | 37.05 | a | 39.50 | c | 42.00 | k | ----- | z | ----- | z | ----- | z | 69.45 | 68.61 | ----- | z | ----- | z | ----- | z | ----- | z | 53.65 | h | ||
1915 | 21.02 | c | 28.79 | 35.94 | f | 47.72 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 32.51 | i | ||
1916 | ----- | z | ----- | z | ----- | z | 52.05 | b | ----- | z | ----- | z | 71.92 | 68.21 | 61.67 | 51.61 | 43.00 | i | 33.61 | c | 56.51 | f | ||||
1917 | 30.44 | 35.10 | c | 38.48 | a | 46.58 | 51.69 | 66.85 | 71.98 | c | 69.87 | a | 65.00 | 52.61 | 42.72 | a | 37.94 | 50.77 | ||||||||
1918 | 27.11 | 37.23 | 44.13 | a | 48.20 | 55.43 | a | 70.28 | a | 72.18 | 69.85 | 63.28 | 53.40 | 35.45 | a | 25.40 | 50.16 | |||||||||
1919 | 20.23 | 30.62 | 39.69 | 50.61 | b | 59.21 | g | 64.37 | 70.52 | 70.61 | 62.93 | 49.71 | 40.72 | a | 35.50 | a | 48.68 | a | ||||||||
1920 | 34.81 | 38.76 | 39.58 | a | 44.70 | 57.89 | 64.87 | 69.76 | 66.44 | 61.07 | 48.76 | 38.62 | 29.92 | 49.60 | ||||||||||||
1921 | ----- | z | 35.26 | a | 43.66 | 45.43 | 56.81 | 63.45 | 68.79 | 67.66 | 63.43 | a | 53.48 | 41.78 | 35.90 | 52.33 | a | |||||||||
1922 | 29.10 | 33.70 | 38.58 | 47.15 | 57.50 | 68.12 | b | 70.95 | 67.84 | 63.12 | 51.73 | 37.95 | 36.52 | 50.19 | ||||||||||||
1923 | 36.94 | 34.75 | 39.00 | a | 48.62 | 58.21 | 67.08 | 71.74 | 67.98 | 60.33 | 47.87 | 39.85 | 31.52 | d | 50.32 | |||||||||||
1924 | 29.06 | 37.86 | 36.95 | 46.17 | 59.34 | c | 68.62 | 71.50 | b | 70.02 | 62.55 | 52.84 | 43.67 | 27.17 | b | 50.48 | ||||||||||
1925 | 26.00 | b | 38.21 | 45.26 | 53.68 | 61.89 | 67.57 | 72.68 | 67.77 | 63.55 | 52.03 | a | 38.35 | 30.44 | 51.45 | |||||||||||
1926 | 19.81 | 38.09 | 40.84 | 48.33 | 56.07 | b | 66.93 | 68.94 | 70.10 | a | 65.29 | b | ----- | z | ----- | z | ----- | z | 52.71 | c | ||||||
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | 32.62 | l | 44.33 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.50 | q | 70.82 | 67.74 | 62.60 | 49.30 | a | 32.90 | 33.89 | 52.88 | f | |||||
1930 | 27.95 | l | 38.38 | 37.11 | 51.85 | 53.37 | 67.70 | 70.02 | 68.53 | 61.18 | 50.74 | 41.43 | o | 29.07 | x | 55.43 | c | |||||||||
1931 | 34.33 | v | ----- | z | ----- | z | ----- | z | 55.60 | p | 64.97 | 69.97 | 65.92 | g | 62.50 | 51.42 | 37.12 | 29.47 | 52.57 | f | ||||||
1932 | 19.69 | 37.48 | 38.03 | 46.55 | 54.92 | 62.37 | 69.11 | 67.91 | b | 58.62 | 47.87 | 37.42 | 22.61 | 46.88 | ||||||||||||
1933 | 25.94 | 28.32 | 41.00 | 43.65 | 52.38 | a | 64.55 | 69.55 | 66.68 | 63.12 | 50.65 | 38.12 | 36.53 | 48.37 | ||||||||||||
1934 | 28.86 | c | 38.59 | 42.34 | 49.87 | 59.42 | 63.47 | 72.13 | 70.58 | 60.81 | c | 51.02 | 40.77 | f | 31.85 | 51.72 | a | |||||||||
1935 | 35.12 | a | 33.30 | a | 41.90 | 49.43 | 53.00 | a | 64.95 | 69.69 | 69.18 | 59.32 | 50.38 | a | 36.78 | 29.94 | 49.42 | |||||||||
1936 | 28.58 | 35.33 | 40.73 | 48.63 | 58.29 | 66.53 | 69.50 | 68.66 | 59.35 | 46.08 | a | 34.92 | 28.82 | 48.79 | ||||||||||||
1937 | 22.37 | 32.23 | 34.19 | 46.15 | 55.29 | 62.23 | 68.16 | 70.77 | 62.88 | ----- | z | 41.86 | i | 33.18 | 48.75 | b | ||||||||||
1938 | 30.55 | 34.54 | 42.29 | 47.71 | a | 55.23 | 65.10 | 69.85 | 68.98 | 61.00 | 48.85 | a | 30.91 | b | 28.15 | a | 48.60 | |||||||||
1939 | 24.34 | 22.98 | 41.09 | b | 48.87 | 56.47 | 65.30 | 69.00 | 65.98 | 62.48 | 45.65 | 35.23 | 32.39 | 47.48 | ||||||||||||
1940 | 28.70 | c | 31.57 | 41.92 | 46.87 | 56.48 | 64.67 | 70.95 | 66.72 | a | 62.00 | a | 51.21 | 33.92 | 32.48 | 48.96 | ||||||||||
1941 | 28.38 | c | 32.80 | 36.14 | b | 42.85 | j | ----- | z | ----- | z | ----- | z | 66.44 | 60.57 | 50.42 | a | 39.00 | 33.21 | 43.37 | d | |||||
1942 | 31.52 | a | 29.29 | b | 35.58 | 47.90 | 55.44 | 65.55 | 70.06 | 68.35 | a | 60.92 | 49.77 | c | 41.60 | 36.34 | b | 49.36 | ||||||||
1943 | 33.90 | 37.04 | a | 40.70 | a | 51.17 | 58.55 | a | 65.38 | b | 70.65 | 71.48 | a | 62.59 | a | 49.90 | a | 37.83 | a | 28.83 | b | 50.67 | ||||
1944 | 22.77 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.58 | 69.72 | a | 61.48 | 52.06 | 39.10 | 21.19 | 47.99 | e | ||||||
1945 | 29.50 | 38.54 | 40.69 | 45.08 | 58.05 | 63.97 | 70.53 | 70.05 | 62.91 | a | 51.40 | 39.28 | 28.55 | 49.88 | ||||||||||||
1946 | 28.06 | 33.52 | 41.66 | 53.82 | 56.60 | 69.18 | 71.55 | 69.52 | 63.28 | 49.45 | 35.80 | 34.31 | 50.56 | |||||||||||||
1947 | 27.82 | 35.80 | 39.90 | 46.30 | 57.63 | 64.82 | 71.31 | 68.69 | 63.10 | 52.24 | 33.02 | 29.28 | d | 49.16 | ||||||||||||
1948 | 27.97 | 31.53 | 33.87 | 51.13 | 57.48 | 65.53 | 69.97 | 68.90 | 62.23 | 49.45 | 33.72 | 32.79 | 48.72 | |||||||||||||
1949 | 21.77 | 32.02 | 40.16 | 47.72 | 55.61 | 64.30 | 69.74 | 66.05 | 61.88 | 46.87 | 41.82 | 26.98 | 47.91 | |||||||||||||
1950 | 30.76 | 36.66 | 39.65 | 49.22 | 55.61 | 65.58 | 68.89 | 66.35 | 59.25 | 56.45 | 39.30 | 35.24 | 50.25 | |||||||||||||
1951 | 29.58 | 33.54 | 38.31 | 46.75 | 57.52 | 64.47 | 73.08 | 68.21 | 61.67 | 50.03 | a | 34.77 | 30.95 | 49.07 | ||||||||||||
1952 | 33.44 | 32.74 | 35.81 | 47.10 | 57.42 | 69.07 | 70.08 | 70.98 | 61.53 | 50.77 | 33.07 | 28.58 | 49.22 | |||||||||||||
1953 | 37.65 | 30.64 | 43.02 | 47.97 | 53.37 | 69.20 | 72.40 | 69.50 | 62.57 | 49.73 | 41.20 | 26.87 | 50.34 | |||||||||||||
1954 | 32.61 | 40.09 | 39.58 | 53.45 | 59.37 | 66.90 | 72.79 | 68.53 | 64.15 | 53.68 | a | ----- | z | ----- | z | 55.12 | b | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 28.65 | 34.05 | 39.83 | 48.25 | 56.46 | 65.74 | 70.37 | 68.70 | 61.79 | 50.41 | 38.03 | 30.48 | 49.45 | |||||||||||||
S.D. | 4.95 | 3.79 | 2.94 | 2.58 | 2.30 | 2.08 | 1.55 | 1.58 | 1.86 | 2.24 | 3.49 | 4.33 | 1.18 | |||||||||||||
SKEW | -0.10 | -0.53 | 0.03 | 0.48 | -0.34 | 0.32 | -0.53 | 0.21 | -0.61 | 0.05 | 0.07 | -0.40 | -0.40 | |||||||||||||
MAX | 37.65 | 40.09 | 46.82 | 53.82 | 61.89 | 70.28 | 73.08 | 72.57 | 65.29 | 56.45 | 46.25 | 37.94 | 51.45 | |||||||||||||
MIN | 19.69 | 22.98 | 33.87 | 43.65 | 51.38 | 62.18 | 65.35 | 65.98 | 57.43 | 45.65 | 30.91 | 20.84 | 46.88 | |||||||||||||
YRS | 38 | 39 | 38 | 39 | 36 | 37 | 42 | 42 | 41 | 38 | 35 | 38 | 27 |