YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | 15.07 | 19.94 | 27.00 | 34.86 | b | 48.27 | 55.03 | 55.13 | 42.13 | 32.94 | 27.17 | 6.55 | 33.10 | a | ||||||||||
1910 | 20.42 | 11.54 | 24.48 | 30.37 | 38.10 | 47.87 | 53.32 | 53.17 | a | 45.70 | 31.10 | a | 26.30 | 15.81 | 33.18 | |||||||||||
1911 | 20.16 | 9.25 | p | 25.16 | 30.60 | 40.26 | 49.87 | 55.23 | 50.50 | i | 47.57 | 33.94 | 18.77 | 2.29 | 32.38 | b | ||||||||||
1912 | 14.77 | 12.79 | 22.19 | 26.14 | a | 36.74 | 44.30 | 51.74 | 50.26 | 37.57 | 29.00 | 15.90 | 9.13 | 29.21 | ||||||||||||
1913 | 9.68 | 12.32 | 21.42 | 28.63 | 38.32 | 47.90 | 50.74 | 49.06 | 38.33 | 30.55 | 26.73 | 4.26 | 29.83 | |||||||||||||
1914 | 23.61 | 14.86 | 21.45 | 29.27 | 40.97 | 49.10 | 53.55 | 48.97 | 42.53 | 30.39 | 18.33 | 12.65 | 32.14 | |||||||||||||
1915 | 9.65 | 16.79 | 19.71 | 32.57 | 36.16 | 45.17 | a | 51.06 | 48.19 | 43.66 | a | 30.55 | 21.13 | 16.18 | c | 30.90 | ||||||||||
1916 | 16.87 | 19.00 | 24.32 | 29.70 | ----- | z | ----- | z | 53.48 | 53.55 | 43.97 | 32.03 | 17.97 | 9.57 | a | 30.05 | b | |||||||||
1917 | 10.30 | a | 14.18 | 18.77 | a | 32.00 | a | 32.26 | 43.24 | a | 52.74 | 48.23 | 46.03 | a | 32.20 | a | 23.30 | ----- | z | 32.11 | a | |||||
1918 | ----- | z | 14.23 | b | 24.69 | e | 30.37 | 41.06 | 52.50 | 53.33 | a | ----- | z | ----- | z | ----- | z | ----- | z | 6.90 | 31.87 | e | ||||
1919 | 1.81 | 12.96 | ----- | z | 27.79 | a | 42.90 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.37 | h | |||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | 25.79 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 19.62 | b | 22.70 | j | |
1922 | 8.72 | b | 15.64 | 19.86 | b | 30.47 | 39.23 | 48.93 | a | 53.58 | 51.81 | 43.90 | 28.50 | c | 20.70 | 16.19 | 31.46 | |||||||||
1923 | 17.35 | 15.57 | 20.03 | 32.00 | 38.90 | a | 47.53 | 54.10 | 53.03 | 42.03 | 34.61 | 21.00 | 12.00 | a | 32.35 | |||||||||||
1924 | 10.80 | a | 20.00 | 18.52 | 29.43 | 36.39 | 47.63 | 52.50 | a | 50.29 | 39.15 | c | 32.00 | 19.79 | a | 9.07 | b | 30.46 | ||||||||
1925 | 12.83 | a | 17.50 | 23.40 | a | 31.11 | b | 42.45 | b | 50.41 | c | 55.23 | 50.71 | 44.82 | b | 30.52 | d | 21.11 | b | 13.74 | d | 32.82 | ||||
1926 | 10.43 | h | 19.18 | f | 21.88 | f | 31.04 | f | 38.69 | e | 45.70 | c | 50.00 | b | 47.36 | i | 41.96 | e | 29.50 | c | 22.21 | f | 11.73 | i | 41.17 | g |
1927 | 20.17 | a | 23.38 | o | 23.00 | e | 31.60 | e | 42.29 | c | 47.21 | b | 51.96 | d | 51.57 | c | 45.35 | g | 30.67 | g | 24.83 | l | 9.17 | h | 38.26 | e |
1928 | 14.46 | g | 17.36 | d | 23.78 | m | 31.69 | n | 38.86 | c | 45.62 | d | 49.89 | c | 49.45 | i | 39.25 | f | 36.89 | d | 21.29 | m | 11.52 | f | 37.72 | g |
1929 | 14.47 | l | 8.05 | f | 24.46 | g | 31.93 | o | 38.00 | g | 45.68 | e | 52.58 | e | 50.96 | g | 41.11 | l | 29.37 | d | 11.93 | o | 13.83 | b | 35.36 | h |
1930 | 4.41 | d | 15.67 | m | 14.15 | d | 29.75 | j | 33.18 | i | 46.90 | i | 50.88 | f | 49.80 | k | 39.91 | h | 34.04 | f | 15.26 | k | 11.46 | g | 9.28 | j |
1931 | 9.64 | q | 17.29 | k | 20.50 | i | 31.35 | j | 36.37 | l | 47.88 | n | 50.25 | k | 48.76 | n | 44.60 | j | 35.75 | k | 16.71 | m | 11.70 | k | ----- | z |
1932 | 8.42 | l | 27.27 | n | 19.19 | j | 32.00 | m | 36.29 | q | 42.40 | o | 52.38 | j | 50.88 | n | 40.58 | f | 27.79 | q | 18.64 | p | 6.48 | h | ----- | z |
1933 | 15.88 | o | 8.30 | e | 21.67 | m | 24.43 | p | 36.53 | l | 49.24 | m | 48.78 | v | 48.67 | m | 43.81 | n | 32.52 | j | 21.19 | n | 22.35 | k | 8.30 | k |
1934 | 13.37 | d | 19.16 | i | 24.12 | g | 33.23 | h | 41.65 | h | 46.78 | l | 52.50 | g | 51.05 | l | 41.45 | j | 34.67 | j | 21.89 | l | 17.43 | j | 13.37 | k |
1935 | 17.40 | k | 14.81 | l | 26.05 | l | 33.96 | f | 39.04 | d | 48.20 | j | 53.00 | o | 52.96 | f | ----- | z | ----- | z | 18.70 | g | 11.95 | k | 39.04 | k |
1936 | 19.58 | l | 19.00 | j | 22.43 | j | 31.35 | j | 42.30 | k | 51.38 | f | 53.43 | j | 52.79 | l | 41.35 | m | 32.45 | t | 17.05 | i | 11.67 | j | ----- | z |
1937 | 7.74 | h | 18.89 | i | 23.05 | j | 32.26 | k | 44.36 | f | ----- | z | 52.88 | f | 52.76 | n | 45.72 | l | 32.65 | n | 19.47 | o | 15.79 | l | ----- | z |
1938 | 13.53 | n | 16.65 | k | 27.52 | j | 29.55 | j | 38.15 | k | 50.29 | i | 51.61 | m | 51.88 | o | 45.67 | i | 33.72 | m | 16.63 | k | 12.71 | j | ----- | z |
1939 | 13.74 | l | 18.62 | l | 23.80 | k | 30.52 | i | 38.35 | h | 48.43 | b | 51.80 | f | 49.44 | d | 47.55 | j | 28.21 | q | 16.22 | l | 14.60 | k | 48.94 | j |
1940 | 8.96 | h | 20.56 | k | 24.00 | p | 32.81 | i | 38.89 | l | 45.41 | m | 52.95 | k | 50.28 | f | 44.95 | j | 33.52 | h | 14.52 | i | 15.59 | i | ----- | z |
1941 | 15.68 | i | 19.50 | j | 21.78 | d | 28.81 | i | 43.07 | c | 44.86 | i | 48.78 | h | 49.48 | h | 41.43 | i | 34.00 | j | 19.52 | g | 14.28 | f | 32.42 | j |
1942 | 11.06 | o | 11.38 | g | 17.68 | f | 29.30 | j | 34.69 | o | 44.84 | k | ----- | z | ----- | z | ----- | z | ----- | z | 18.69 | n | 15.05 | k | ----- | z |
1943 | ----- | z | 18.50 | h | 18.22 | h | 29.42 | k | 33.21 | q | 47.15 | j | 50.64 | c | 53.24 | b | 39.62 | n | 23.60 | u | 14.64 | p | ----- | z | 51.94 | j |
1944 | 8.54 | c | 13.35 | l | 15.71 | 23.70 | 38.94 | 44.40 | 49.71 | 50.00 | 40.77 | 35.52 | 23.38 | a | 15.58 | 31.48 | a | |||||||||
1945 | 6.47 | a | 13.56 | l | 16.50 | m | 23.23 | 34.00 | u | 42.00 | 49.87 | 53.06 | 41.17 | 30.35 | 17.70 | 14.33 | a | 30.91 | c | |||||||
1946 | 4.81 | 8.04 | 15.84 | 33.34 | a | 36.90 | 46.93 | 52.41 | b | 53.36 | c | 45.70 | c | 28.93 | a | 16.04 | d | 13.07 | d | 29.62 | ||||||
1947 | 10.30 | d | ----- | z | 17.71 | j | ----- | z | 38.74 | h | 44.12 | e | 52.07 | d | 49.43 | x | ----- | z | ----- | z | 11.36 | h | 11.17 | m | 35.50 | i |
1948 | 13.45 | b | 15.40 | i | 9.83 | g | 32.13 | 39.94 | 47.43 | 49.47 | a | 53.04 | g | ----- | z | ----- | z | ----- | z | ----- | z | 36.48 | g | |||
1949 | 8.70 | a | 11.29 | ----- | z | ----- | z | 40.32 | 46.00 | 52.77 | 48.87 | 43.72 | a | 29.74 | ----- | z | ----- | z | 35.18 | d | ||||||
1950 | ----- | z | 17.36 | 17.84 | 28.25 | b | 36.68 | 48.27 | 52.19 | 47.42 | 46.20 | 37.19 | 22.57 | 15.45 | 33.58 | a | ||||||||||
1951 | 8.39 | 17.15 | a | 19.23 | 23.05 | k | 38.59 | b | 44.70 | 54.71 | 54.45 | 42.47 | ----- | z | 19.50 | 15.25 | c | 31.44 | b | |||||||
1952 | 14.42 | 15.37 | b | 16.03 | 28.33 | 38.77 | 51.50 | 54.39 | 54.74 | 44.40 | 31.10 | 19.57 | 11.90 | 31.71 | ||||||||||||
1953 | 20.61 | 13.43 | 25.71 | 28.33 | 38.35 | 51.76 | e | 55.26 | 50.55 | 41.80 | 31.68 | 23.77 | 13.00 | 32.85 | ||||||||||||
1954 | 19.19 | ----- | z | ----- | z | 33.43 | 41.06 | 49.03 | 53.97 | 51.13 | a | 47.80 | 36.06 | 22.80 | 12.19 | 36.67 | b | |||||||||
1955 | 14.19 | 9.68 | 25.42 | 31.17 | 39.10 | 43.80 | 52.50 | a | 51.35 | 42.67 | 30.39 | 18.07 | 18.90 | 31.44 | ||||||||||||
1956 | 17.23 | 11.97 | 20.83 | a | 24.93 | 40.94 | 50.30 | 51.96 | d | 51.00 | 44.74 | k | 32.12 | f | 15.50 | 11.90 | 29.66 | b | ||||||||
1957 | 15.52 | 24.32 | 25.26 | 27.50 | 38.16 | 46.00 | 55.03 | 52.39 | 40.07 | 36.26 | 19.77 | 18.90 | 33.26 | |||||||||||||
1958 | 13.65 | 19.82 | 19.71 | 31.07 | 40.94 | 48.77 | 52.23 | 50.39 | 44.74 | g | 30.81 | 19.86 | a | 14.03 | 31.02 | a | ||||||||||
1959 | 4.43 | a | 16.04 | 18.84 | 28.90 | a | 40.90 | 48.17 | 48.32 | 52.65 | 38.17 | 30.74 | 17.97 | 14.35 | 29.96 | |||||||||||
1960 | 11.07 | a | 13.61 | a | 20.85 | d | 27.13 | 35.81 | 48.40 | 51.29 | 50.00 | 44.86 | b | 32.35 | 24.48 | a | ----- | z | 32.71 | a | ||||||
1961 | 10.12 | e | 19.21 | 21.97 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 17.10 | i | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 12.61 | 15.37 | 20.87 | 29.35 | 39.00 | 47.34 | 52.47 | 51.27 | 42.93 | 31.90 | 20.71 | 12.74 | 31.41 | |||||||||||||
S.D. | 5.42 | 4.10 | 3.15 | 2.65 | 2.38 | 2.51 | 1.84 | 2.07 | 2.78 | 2.52 | 3.24 | 4.22 | 1.36 | |||||||||||||
SKEW | 0.08 | 0.51 | -0.23 | -0.58 | -0.52 | -0.02 | -0.26 | 0.08 | -0.21 | 0.80 | 0.38 | -0.67 | -0.17 | |||||||||||||
MAX | 23.61 | 25.79 | 25.71 | 33.43 | 43.07 | 52.50 | 55.26 | 55.13 | 47.80 | 37.19 | 27.17 | 19.62 | 33.26 | |||||||||||||
MIN | 1.81 | 8.04 | 14.15 | 23.23 | 32.26 | 42.00 | 48.32 | 47.42 | 37.57 | 28.50 | 15.50 | 2.29 | 29.21 | |||||||||||||
YRS | 33 | 30 | 30 | 30 | 34 | 35 | 36 | 30 | 27 | 29 | 27 | 28 | 15 |