YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1909 | ----- | z | ----- | z | 17.73 | a | 25.53 | 30.71 | 42.67 | 52.58 | 52.45 | 39.47 | 29.75 | s | 21.59 | a | 5.94 | 32.07 | c | |||||||
1910 | 10.42 | 9.68 | 28.61 | c | 32.03 | 38.74 | 48.80 | 54.63 | a | 54.57 | a | 46.30 | 29.16 | 27.97 | 12.71 | 32.80 | ||||||||||
1911 | 22.16 | 15.39 | 25.23 | 30.73 | 36.42 | ----- | z | 51.97 | 53.30 | a | ----- | z | ----- | z | ----- | z | 8.29 | 30.44 | d | |||||||
1912 | 13.94 | 15.59 | 25.03 | 27.60 | 36.65 | 44.90 | 50.03 | 50.52 | 38.57 | 29.81 | 16.13 | 10.57 | j | 31.70 | a | |||||||||||
1913 | 8.11 | c | 17.29 | 20.37 | a | 27.07 | 37.90 | 46.47 | 49.74 | 49.55 | 39.03 | 28.39 | 24.77 | d | 10.07 | b | 29.90 | |||||||||
1914 | 17.00 | a | 17.36 | 19.65 | k | ----- | z | ----- | z | ----- | z | 53.58 | 49.55 | ----- | z | ----- | z | ----- | z | ----- | z | 34.37 | h | |||
1915 | 9.69 | b | 15.29 | 19.64 | f | 34.90 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.96 | i | ||
1916 | ----- | z | ----- | z | ----- | z | 39.18 | b | ----- | z | ----- | z | 57.19 | 53.29 | 43.20 | 36.84 | 26.19 | i | 21.36 | c | 41.84 | f | ||||
1917 | 16.00 | 21.11 | a | 21.16 | 28.53 | 35.74 | 47.17 | 54.20 | a | 52.58 | 49.07 | 33.39 | 22.59 | a | 19.90 | 33.45 | ||||||||||
1918 | 12.19 | 21.68 | 28.48 | 31.90 | 38.13 | 51.72 | a | 55.81 | 52.94 | 45.07 | 35.94 | 20.62 | a | 10.55 | 33.75 | |||||||||||
1919 | 4.84 | 19.07 | 25.61 | 36.21 | a | 42.38 | g | 45.23 | 54.84 | 51.84 | 46.57 | 34.65 | 24.10 | 21.23 | 33.11 | a | ||||||||||
1920 | 19.84 | 25.59 | 22.83 | a | 29.73 | 39.71 | 47.43 | 51.45 | 50.13 | 43.07 | 31.90 | 23.03 | 13.26 | 33.16 | ||||||||||||
1921 | ----- | z | 18.85 | a | 26.39 | 25.50 | 39.52 | 46.53 | 54.00 | 52.42 | 44.41 | a | 33.39 | 21.53 | 20.77 | 34.85 | a | |||||||||
1922 | 12.71 | 18.04 | 22.45 | 30.27 | 39.10 | 48.70 | 53.29 | 47.71 | 43.57 | 31.52 | 22.10 | 23.48 | 32.74 | |||||||||||||
1923 | 21.23 | 18.29 | 24.13 | 33.70 | 40.26 | 49.47 | 54.77 | 53.48 | 44.03 | 34.48 | 25.10 | 20.26 | d | 34.93 | ||||||||||||
1924 | 14.58 | 22.10 | 22.77 | 28.90 | 40.68 | c | 48.10 | 54.24 | b | 52.16 | 43.03 | 34.42 | 23.93 | 13.03 | b | 33.16 | ||||||||||
1925 | 12.55 | b | 22.64 | 27.19 | 36.57 | 44.77 | 51.00 | 57.03 | 52.23 | 47.27 | 37.71 | 22.53 | 16.06 | 35.63 | ||||||||||||
1926 | 5.03 | 23.68 | 26.42 | 33.77 | 41.17 | b | 49.17 | 52.06 | 51.55 | 48.28 | a | ----- | z | ----- | z | ----- | z | 36.79 | c | |||||||
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | 16.35 | l | 26.46 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.00 | q | 55.39 | 53.03 | 46.90 | 33.97 | a | 20.00 | 17.71 | 37.83 | f | |||||
1930 | 12.87 | a | 21.29 | 20.42 | 32.57 | 35.81 | 48.10 | 54.32 | 51.68 | 43.20 | 33.65 | 21.10 | 11.57 | h | 34.09 | a | ||||||||||
1931 | 11.61 | ----- | z | ----- | z | ----- | z | 35.73 | p | 44.60 | 52.58 | 49.55 | 47.87 | 34.39 | 22.33 | 15.74 | 34.83 | d | ||||||||
1932 | 4.97 | 23.93 | 22.97 | 26.67 | 37.71 | 42.53 | 53.13 | 52.41 | b | 40.40 | 31.55 | 16.47 | 7.74 | 30.04 | ||||||||||||
1933 | 11.52 | 12.96 | 22.65 | 25.40 | 32.19 | 47.53 | 51.97 | 49.81 | 44.87 | 31.48 | 18.27 | 19.00 | 30.64 | |||||||||||||
1934 | 11.86 | b | 21.64 | 21.58 | 31.90 | 39.84 | 41.30 | 54.06 | 54.16 | 44.97 | 30.52 | 20.52 | e | 16.23 | 32.38 | |||||||||||
1935 | 19.52 | 17.74 | a | 25.35 | 33.33 | 36.81 | 43.93 | 50.16 | 53.65 | 40.20 | 31.16 | 18.57 | 15.26 | 32.14 | ||||||||||||
1936 | 14.00 | 22.59 | 21.23 | 30.17 | 39.26 | 46.03 | 51.23 | 49.61 | 43.73 | 30.00 | 15.30 | 11.94 | 31.26 | |||||||||||||
1937 | 5.10 | 18.11 | 21.65 | 26.97 | 37.58 | 43.73 | 49.52 | 51.10 | 46.90 | ----- | z | 19.90 | i | 17.52 | 31.82 | b | ||||||||||
1938 | 14.10 | 18.71 | 27.00 | 27.67 | 36.71 | 46.73 | 53.23 | 49.74 | 45.27 | 29.26 | 14.87 | 13.81 | 31.42 | |||||||||||||
1939 | 12.58 | 11.04 | 25.83 | a | 30.77 | 36.55 | 44.17 | 51.00 | 48.55 | 47.43 | 28.68 | 17.53 | 16.29 | 30.87 | ||||||||||||
1940 | 16.59 | b | 20.07 | 24.74 | 28.73 | 40.71 | 45.63 | 52.84 | 49.48 | 43.90 | 30.39 | 16.70 | 21.13 | 32.58 | ||||||||||||
1941 | 18.90 | 19.79 | 21.93 | a | 26.50 | j | ----- | z | ----- | z | ----- | z | 49.35 | 44.37 | 36.70 | a | 21.40 | 18.87 | 28.91 | d | ||||||
1942 | 14.67 | a | 13.42 | b | 19.03 | 32.93 | 36.16 | 45.53 | 51.10 | 53.19 | 45.27 | 33.17 | a | 23.10 | 22.90 | a | 32.54 | |||||||||
1943 | 19.06 | 19.11 | 23.77 | 30.57 | 40.32 | 46.03 | 52.48 | 53.60 | a | 42.87 | 29.16 | 16.62 | a | 14.77 | a | 32.36 | ||||||||||
1944 | 6.58 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.87 | 52.74 | 43.47 | 34.71 | 25.03 | 5.29 | 31.53 | e | |||||||
1945 | 17.16 | 24.71 | 22.32 | 27.07 | 38.61 | 43.63 | 52.71 | 54.26 | 43.80 | 33.39 | 19.93 | 13.87 | 32.62 | |||||||||||||
1946 | 13.97 | 15.00 | 24.23 | 35.33 | 39.65 | 49.07 | 55.42 | 56.68 | 47.23 | 33.19 | 22.60 | 17.81 | 34.18 | |||||||||||||
1947 | 12.29 | 18.07 | 23.16 | 28.47 | 38.45 | 46.73 | 53.74 | 54.77 | 43.80 | 35.00 | 19.47 | 15.71 | c | 32.47 | ||||||||||||
1948 | 15.06 | 19.52 | 20.74 | 33.77 | 40.48 | 48.67 | 52.16 | 52.00 | 43.57 | 32.32 | 16.53 | 17.94 | 32.73 | |||||||||||||
1949 | 12.45 | 19.25 | 24.55 | 32.83 | 39.03 | 46.93 | 55.65 | 48.97 | 45.37 | 29.26 | 20.83 | 9.39 | 32.04 | |||||||||||||
1950 | 12.71 | 19.32 | 22.13 | 30.63 | 37.29 | 46.90 | 55.58 | 49.26 | 44.07 | 36.10 | 19.20 | 17.19 | 32.53 | |||||||||||||
1951 | 14.55 | 17.64 | 22.13 | 30.17 | 40.71 | 46.33 | 56.61 | 54.45 | 41.83 | 31.52 | 17.20 | 17.48 | 32.55 | |||||||||||||
1952 | 18.48 | 17.90 | 21.39 | 31.03 | 41.32 | 52.17 | 54.16 | 55.45 | 43.97 | 28.77 | 16.93 | 14.45 | 33.00 | |||||||||||||
1953 | 22.71 | 14.96 | 27.42 | 30.30 | 36.23 | 49.90 | 55.90 | 51.84 | 40.67 | 30.55 | 24.97 | 12.90 | 33.20 | |||||||||||||
1954 | 17.74 | 21.29 | 22.97 | 34.60 | 43.19 | 47.70 | 56.77 | 53.32 | 47.60 | 37.17 | a | ----- | z | ----- | z | 38.24 | b | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 13.78 | 18.71 | 23.52 | 30.87 | 38.45 | 46.79 | 53.48 | 51.93 | 44.25 | 32.57 | 20.58 | 15.47 | 32.54 | |||||||||||||
S.D. | 4.68 | 3.58 | 2.57 | 3.32 | 2.70 | 2.53 | 2.03 | 2.08 | 2.56 | 2.67 | 3.25 | 4.60 | 1.29 | |||||||||||||
SKEW | -0.19 | -0.39 | 0.11 | 0.29 | -0.49 | 0.02 | -0.07 | -0.04 | -0.33 | 0.16 | 0.06 | -0.39 | 0.03 | |||||||||||||
MAX | 22.71 | 25.59 | 28.61 | 39.18 | 44.77 | 52.17 | 57.19 | 56.68 | 49.07 | 37.71 | 27.97 | 23.48 | 35.63 | |||||||||||||
MIN | 4.84 | 9.68 | 17.73 | 25.40 | 30.71 | 41.30 | 49.52 | 47.71 | 38.57 | 28.39 | 14.87 | 5.29 | 29.90 | |||||||||||||
YRS | 40 | 39 | 38 | 39 | 36 | 37 | 42 | 43 | 41 | 38 | 37 | 38 | 28 |