YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.74 | d | 55.43 | a | 51.67 | c | ----- | z | ----- | z | ----- | z | 56.28 | i |
1920 | 8.39 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.26 | 52.74 | 48.53 | 38.47 | a | 18.97 | 10.40 | a | 33.82 | e | ||||
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 | 49.53 | 36.17 | a | 24.17 | 13.87 | 30.93 | h | |||
1924 | -3.17 | a | 14.26 | b | 19.60 | a | 33.55 | a | 37.16 | 51.47 | 55.19 | 57.23 | 46.30 | 42.30 | a | 24.34 | a | 4.33 | a | 31.88 | ||||||
1925 | 0.53 | a | 18.96 | 25.00 | a | 41.10 | 42.68 | 56.47 | 57.90 | a | 58.39 | 52.17 | 25.96 | c | 22.21 | a | 11.61 | 34.41 | ||||||||
1926 | 7.45 | 20.07 | a | 20.90 | 30.93 | 50.55 | 52.97 | 60.68 | 58.87 | 46.97 | 37.42 | 20.47 | 9.53 | a | 34.73 | |||||||||||
1927 | 8.83 | a | 14.64 | 24.16 | 35.21 | a | 44.97 | 53.97 | a | 56.90 | 54.90 | 50.40 | 35.74 | 20.78 | c | -3.30 | a | 33.10 | ||||||||
1928 | 10.10 | 15.76 | 22.65 | 28.57 | 45.52 | 50.37 | 61.13 | 58.63 | a | 44.07 | 36.97 | 25.00 | 15.48 | 34.52 | ||||||||||||
1929 | 7.28 | m | 0.57 | 27.50 | a | 34.45 | a | 42.60 | a | 53.03 | 63.13 | a | 58.90 | 47.50 | 39.13 | 19.45 | a | 11.17 | b | 36.13 | a | |||||
1930 | -1.68 | 23.21 | 22.26 | 38.77 | 44.23 | 53.60 | 61.90 | 62.23 | 48.87 | 36.10 | 23.87 | 18.65 | 36.00 | |||||||||||||
1931 | 14.00 | a | 21.54 | 21.35 | 31.54 | b | 40.81 | 61.73 | 63.13 | 59.60 | a | 53.75 | b | 41.23 | 23.21 | b | 14.32 | 37.18 | ||||||||
1932 | 7.29 | 13.69 | 16.03 | 38.70 | 47.55 | 58.20 | 61.84 | 60.65 | 46.77 | 33.26 | 21.17 | 3.65 | 34.07 | |||||||||||||
1933 | 14.87 | 3.71 | 23.84 | 32.38 | a | 44.71 | 63.77 | 63.55 | 57.71 | 53.20 | 33.13 | 23.63 | 12.77 | 35.61 | ||||||||||||
1934 | 13.37 | a | 14.96 | 19.84 | 35.17 | 54.13 | 58.77 | 64.97 | 59.13 | 43.73 | 38.77 | a | 28.34 | a | 14.94 | 37.18 | ||||||||||
1935 | 7.03 | 21.36 | 27.32 | 33.87 | 43.61 | 52.60 | 67.94 | 59.43 | a | 49.00 | 32.03 | 18.73 | 14.29 | 35.60 | ||||||||||||
1936 | -5.52 | -14.21 | 24.94 | 31.13 | 50.03 | a | 57.50 | 69.45 | 64.71 | 52.80 | 32.84 | 22.17 | 16.52 | 33.53 | ||||||||||||
1937 | -9.58 | 7.00 | 21.17 | a | 35.13 | 48.81 | 54.37 | 62.06 | 65.13 | a | 53.65 | j | 34.63 | l | 20.60 | 9.03 | 31.37 | b | ||||||||
1938 | 10.39 | 7.68 | 26.81 | 37.00 | 45.74 | 57.23 | 62.00 | 61.58 | 51.40 | 41.84 | 17.73 | 12.61 | 36.00 | |||||||||||||
1939 | 17.23 | 6.00 | g | 22.00 | 32.87 | 52.55 | 56.13 | 62.87 | 56.03 | 49.80 | 35.58 | 22.20 | 17.65 | 38.63 | a | |||||||||||
1940 | -5.06 | 12.00 | 22.29 | 33.37 | 41.90 | 54.87 | 66.35 | 59.77 | 54.97 | 41.00 | 19.63 | 17.90 | 34.92 | |||||||||||||
1941 | 9.84 | 13.04 | 22.65 | 40.70 | 51.19 | 58.17 | 61.77 | 61.52 | 52.27 | 39.42 | 24.71 | b | 19.97 | a | 37.94 | |||||||||||
1942 | 11.77 | a | 12.68 | 25.87 | 39.30 | 44.97 | 57.13 | 59.81 | 60.06 | 43.80 | e | 35.20 | a | 22.73 | 11.06 | 35.37 | ||||||||||
1943 | -1.84 | 13.50 | 12.53 | a | 36.14 | b | 41.52 | 55.90 | 62.21 | b | 62.03 | 46.67 | 35.40 | a | 24.33 | 11.94 | 33.36 | |||||||||
1944 | 11.38 | b | 5.32 | a | 16.28 | b | 33.81 | c | 51.13 | 55.07 | c | 58.90 | a | 60.17 | a | 47.93 | a | 35.41 | b | 26.10 | 12.76 | b | 34.52 | |||
1945 | 14.71 | 14.92 | b | 25.65 | 31.96 | b | 38.74 | d | 51.75 | b | 59.48 | b | 58.79 | c | 48.43 | b | 32.66 | b | 19.15 | c | 5.40 | a | 33.47 | |||
1946 | 9.96 | c | 11.93 | a | 29.96 | c | 38.93 | c | 41.66 | b | 54.89 | b | 63.64 | c | 54.87 | a | 47.83 | f | 35.11 | d | 22.11 | b | 15.15 | d | 34.38 | a |
1947 | 14.39 | 7.22 | a | 20.82 | c | 33.03 | a | 39.18 | c | 52.55 | a | 67.96 | c | 64.50 | a | 47.31 | d | 42.69 | b | 18.62 | d | 9.68 | c | 34.83 | ||
1948 | 4.00 | a | 6.04 | c | 18.03 | b | 38.89 | b | 45.65 | e | 54.38 | a | 61.89 | d | 59.48 | d | 51.67 | c | 32.05 | i | ----- | z | 4.69 | o | 37.78 | c |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 33.17 | g | 25.07 | 5.38 | b | 15.22 | j | |
1950 | -8.24 | b | 5.56 | a | 13.10 | 30.87 | 42.52 | 53.56 | c | 55.35 | e | 53.17 | a | 46.17 | 36.83 | b | ----- | z | 9.45 | 30.76 | a | |||||
1951 | 0.97 | ----- | z | 11.65 | 32.83 | a | 44.29 | 51.00 | j | 58.53 | a | 57.53 | a | 43.93 | a | 33.50 | c | 16.70 | 1.39 | 30.13 | b | |||||
1952 | 1.39 | c | 16.04 | a | 16.45 | 33.90 | a | 44.84 | 57.73 | 58.52 | 58.26 | 48.32 | b | 30.03 | 21.47 | 11.67 | a | 33.22 | ||||||||
1953 | 12.16 | 13.00 | b | 23.23 | 29.66 | a | 44.27 | a | 57.76 | a | 59.55 | 61.26 | 46.48 | c | 40.06 | 25.10 | a | 12.37 | a | 35.41 | ||||||
1954 | 1.73 | a | 26.67 | a | 18.32 | 33.63 | 41.13 | 56.07 | a | 61.97 | a | 58.52 | 49.75 | b | 34.20 | a | 25.38 | a | 12.73 | a | 35.01 | |||||
1955 | 8.63 | a | 2.32 | 17.03 | a | 39.29 | b | 48.35 | 54.23 | 63.55 | 62.93 | b | 47.33 | 34.23 | 9.63 | -2.00 | a | 32.13 | ||||||||
1956 | 0.03 | a | 0.41 | 17.13 | a | 27.34 | a | 47.23 | a | 58.34 | a | 57.74 | 57.32 | c | 43.71 | b | 38.47 | a | 23.03 | 16.77 | 32.30 | |||||
1957 | -1.23 | 11.15 | b | 20.29 | c | 32.90 | 46.07 | a | 53.50 | b | 63.13 | a | 59.48 | b | 44.70 | c | 40.06 | 25.07 | b | 19.79 | b | 34.58 | ||||
1958 | 12.14 | b | 5.04 | 21.26 | l | 33.46 | f | 45.07 | d | 53.20 | 57.71 | c | 58.30 | a | 50.78 | c | 36.21 | b | 22.21 | a | 6.77 | 34.74 | b | |||
1959 | 1.55 | b | 0.00 | a | 24.79 | b | 32.34 | a | 44.52 | b | 57.71 | b | 58.35 | 61.52 | 46.41 | a | 31.10 | 15.00 | a | 21.87 | 32.93 | |||||
1960 | 6.55 | 5.74 | b | 9.14 | b | 34.90 | 42.55 | 53.71 | b | 60.00 | b | 57.87 | a | 49.39 | b | 36.45 | 21.28 | a | 8.61 | c | 32.18 | |||||
1961 | 4.39 | c | 15.00 | a | 25.34 | b | 28.50 | 43.70 | a | 54.28 | a | 57.00 | c | 60.23 | 45.72 | a | 35.56 | d | 21.07 | a | 4.72 | b | 32.96 | |||
1962 | 2.76 | b | 7.04 | 12.07 | b | 33.07 | b | 49.67 | a | 56.66 | a | 59.71 | c | 58.79 | g | 44.53 | 36.68 | 25.87 | 10.81 | 30.80 | a | |||||
1963 | -5.55 | 10.32 | 25.32 | c | 35.55 | a | 45.00 | 58.57 | 63.83 | a | 58.21 | c | 53.37 | c | 43.07 | a | 22.03 | a | 3.34 | b | 34.42 | |||||
1964 | 7.45 | b | 10.27 | c | 11.27 | a | 35.88 | d | 48.10 | 54.07 | c | 63.25 | c | 55.48 | d | 49.55 | j | ----- | z | ----- | z | ----- | z | 35.72 | d | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 5.34 | 10.75 | 20.63 | 34.29 | 45.22 | 55.55 | 61.33 | 59.09 | 48.50 | 36.42 | 21.83 | 11.10 | 34.44 | |||||||||||||
S.D. | 7.06 | 7.74 | 5.15 | 3.40 | 3.82 | 2.78 | 3.24 | 2.84 | 3.13 | 3.70 | 3.44 | 5.80 | 1.55 | |||||||||||||
SKEW | -0.35 | -0.61 | -0.49 | 0.17 | 0.28 | 0.69 | 0.37 | -0.03 | 0.19 | -0.30 | -1.15 | -0.49 | 0.29 | |||||||||||||
MAX | 17.23 | 26.67 | 29.96 | 41.10 | 54.13 | 63.77 | 69.45 | 65.13 | 54.97 | 43.07 | 28.34 | 21.87 | 37.94 | |||||||||||||
MIN | -9.58 | -14.21 | 9.14 | 27.34 | 37.16 | 50.37 | 55.19 | 52.74 | 43.71 | 25.96 | 9.63 | -3.30 | 31.88 | |||||||||||||
YRS | 40 | 38 | 39 | 39 | 40 | 39 | 42 | 41 | 40 | 39 | 40 | 41 | 30 |