YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1910 | ----- | z | ----- | z | 38.19 | 48.08 | d | 49.00 | d | 64.52 | 66.03 | 63.81 | 54.37 | 48.00 | 25.85 | g | 14.97 | 49.66 | c | |||||||
1911 | 3.75 | u | 15.88 | t | 26.70 | k | 39.23 | 55.92 | g | 67.82 | b | 65.20 | c | 61.60 | 53.95 | 42.33 | a | 23.72 | a | 23.14 | b | 47.12 | d | |||
1912 | -6.53 | o | 13.47 | m | 18.37 | 41.07 | 52.93 | j | 58.74 | e | 65.60 | b | 60.08 | a | 56.13 | c | 46.32 | f | 32.02 | a | 20.53 | 44.07 | d | |||
1913 | 12.52 | 8.14 | 21.12 | e | 41.64 | b | 50.50 | 64.93 | 64.42 | 65.71 | 56.37 | d | 42.77 | 36.23 | 27.31 | 40.97 | ||||||||||
1914 | 18.47 | 5.70 | 23.21 | 36.89 | b | 55.23 | 60.59 | c | 68.71 | 62.90 | 57.15 | 51.74 | 30.59 | a | 11.73 | 40.24 | ||||||||||
1915 | 11.00 | 22.73 | 24.26 | 49.13 | 48.90 | 57.07 | 61.66 | 58.87 | 56.08 | 45.48 | 31.37 | 18.65 | 40.43 | |||||||||||||
1916 | 10.79 | 9.09 | 19.15 | 38.38 | 49.76 | 57.08 | 72.39 | 65.52 | 53.85 | 43.71 | 27.95 | 11.79 | 38.29 | |||||||||||||
1917 | 6.90 | 3.66 | 23.15 | 36.00 | 46.92 | 56.33 | 66.40 | 60.16 | 53.02 | 35.00 | 33.60 | e | ----- | z | 38.29 | a | ||||||||||
1918 | ----- | z | ----- | z | ----- | z | 39.02 | c | 54.50 | 60.45 | i | 64.00 | 63.15 | 49.24 | a | 45.15 | a | 33.08 | l | 23.98 | a | 48.43 | e | |||
1919 | 19.37 | 17.36 | 26.19 | 39.75 | f | 51.32 | a | 66.36 | b | 65.79 | 61.37 | a | 57.95 | 40.53 | a | 24.76 | a | 7.03 | 39.82 | a | ||||||
1920 | 4.35 | d | 11.41 | a | 26.10 | 33.20 | 52.03 | 62.62 | a | 62.44 | 62.18 | 57.78 | 51.40 | 27.88 | 20.16 | 39.30 | ||||||||||
1921 | 17.97 | 19.16 | 26.44 | 45.79 | a | 55.27 | 67.18 | 72.00 | 64.03 | 59.78 | a | 46.74 | 25.08 | 17.28 | a | 43.06 | ||||||||||
1922 | 10.24 | 10.54 | 26.45 | 39.07 | a | 58.92 | a | 61.93 | 63.42 | 65.08 | a | 58.77 | 46.50 | a | 34.55 | a | 14.63 | d | 40.84 | |||||||
1923 | 14.10 | a | 5.28 | a | 16.29 | 35.52 | 51.74 | 66.08 | 67.89 | 60.57 | a | 57.30 | 44.07 | x | 34.42 | d | 26.74 | 39.63 | a | |||||||
1924 | 2.48 | a | 16.93 | b | 24.35 | 37.97 | 44.24 | 58.60 | a | 61.40 | 55.67 | g | ----- | z | ----- | z | ----- | z | 7.78 | a | 31.72 | d | ||||
1925 | 11.71 | 16.21 | 27.39 | 44.98 | 48.61 | 62.25 | 64.32 | 65.27 | a | 58.42 | 34.35 | a | 28.07 | 15.00 | 39.71 | |||||||||||
1926 | 13.44 | 16.39 | 18.21 | 35.02 | 53.32 | 56.32 | b | 64.24 | 62.27 | 51.28 | a | 41.55 | b | 23.98 | 11.87 | 37.32 | ||||||||||
1927 | 7.63 | a | 17.71 | 30.07 | b | 39.28 | 48.48 | 57.92 | 61.65 | 57.69 | 57.71 | b | 46.63 | 27.30 | 9.90 | a | 38.50 | |||||||||
1928 | 13.15 | 14.47 | 22.92 | 31.65 | 53.32 | 56.10 | 65.65 | a | 62.68 | 50.88 | 43.59 | b | 31.43 | 21.48 | 38.94 | |||||||||||
1929 | -0.77 | a | 6.52 | 25.98 | b | 41.03 | 48.02 | 58.15 | 63.34 | b | 62.00 | b | 54.27 | b | 44.88 | b | 24.62 | a | 14.89 | d | 36.91 | |||||
1930 | 5.36 | c | 21.85 | b | 25.58 | a | 41.30 | 53.07 | b | 61.12 | d | 64.95 | 64.54 | d | 54.73 | 41.94 | 33.28 | 17.02 | 40.39 | |||||||
1931 | 18.78 | b | 24.34 | 26.85 | 41.41 | b | 49.37 | 63.52 | a | 65.97 | 59.71 | 60.13 | 48.37 | e | 35.12 | d | 24.43 | a | 43.17 | |||||||
1932 | 18.66 | b | 11.92 | e | 16.57 | c | 37.75 | 51.05 | 63.02 | a | 64.22 | b | 64.66 | i | 53.07 | b | 39.07 | h | 24.20 | 13.12 | c | 35.36 | b | |||
1933 | 17.72 | a | 7.98 | a | 24.00 | b | 37.26 | a | 53.95 | 68.37 | c | 67.13 | d | 61.35 | a | 59.52 | g | 38.50 | c | 27.25 | v | 11.69 | b | 38.79 | b | |
1934 | 19.58 | 7.85 | b | 20.26 | 37.36 | a | 58.02 | a | 64.03 | 65.98 | 60.00 | a | 54.12 | b | 47.40 | 33.66 | b | 14.35 | a | 40.22 | ||||||
1935 | 9.08 | a | 16.78 | a | 27.06 | 38.55 | 48.11 | 55.97 | 70.18 | 63.76 | 53.92 | 43.40 | 25.82 | 16.32 | 39.08 | |||||||||||
1936 | 7.60 | -0.19 | 25.32 | 33.05 | a | 56.12 | b | 58.23 | 70.68 | 64.31 | b | 58.72 | a | 39.00 | b | 27.36 | a | 19.09 | c | 38.27 | ||||||
1937 | 6.52 | 14.39 | 21.20 | c | 36.22 | a | 52.65 | a | 60.40 | a | 68.59 | d | 68.48 | 54.61 | b | 39.69 | 27.50 | 12.78 | a | 38.59 | ||||||
1938 | 9.60 | 17.70 | 30.37 | a | 38.86 | b | 51.88 | a | 60.55 | a | 66.18 | a | 65.59 | c | 53.78 | a | 48.76 | 30.41 | a | 16.60 | b | 40.86 | ||||
1939 | 16.02 | a | 8.81 | a | 22.76 | 34.52 | 54.87 | d | 61.29 | a | 65.34 | b | 63.94 | 56.20 | c | 43.91 | b | 31.27 | 22.71 | c | 40.14 | |||||
1940 | 7.45 | 17.09 | 18.61 | 35.45 | b | 48.31 | b | 60.34 | b | 65.23 | c | 63.75 | k | 57.57 | 45.92 | a | 26.93 | b | 18.37 | 36.48 | a | |||||
1941 | 14.06 | 16.34 | 21.20 | a | 45.84 | b | 56.34 | b | 63.61 | b | 65.33 | a | 63.18 | a | 57.65 | 44.52 | a | 30.62 | a | 22.83 | a | 41.79 | ||||
1942 | 13.94 | 14.81 | a | 28.55 | 45.80 | 49.87 | a | 60.05 | a | 63.45 | b | 64.43 | b | 51.04 | d | 45.28 | b | 27.53 | 13.21 | 39.83 | ||||||
1943 | 7.62 | a | 14.27 | 15.24 | h | 35.79 | a | 51.28 | a | 64.08 | 68.42 | 65.27 | 51.37 | 44.15 | 24.80 | 19.20 | c | 40.57 | a | |||||||
1944 | 22.24 | 16.98 | 21.08 | 37.23 | 56.50 | 63.23 | 64.97 | a | 66.38 | a | 55.22 | a | 43.90 | 35.25 | 14.21 | 41.43 | ||||||||||
1945 | 7.55 | 13.90 | c | 35.03 | 39.28 | 46.30 | a | 56.28 | a | 61.70 | a | 61.65 | a | 53.60 | 41.78 | a | 27.10 | a | 11.73 | 37.99 | ||||||
1946 | 13.39 | 11.75 | 36.58 | 41.79 | a | 50.71 | 59.95 | 64.50 | 60.61 | 53.88 | 46.85 | 29.61 | b | 15.96 | c | 40.47 | ||||||||||
1947 | 14.52 | 11.32 | 21.62 | b | 36.23 | 45.90 | 56.63 | 64.33 | d | 70.34 | b | 53.88 | b | 52.68 | c | 25.04 | c | 15.53 | b | 39.00 | ||||||
1948 | 2.52 | a | 11.17 | 23.34 | 43.92 | 50.88 | a | 59.35 | 60.65 | k | 65.85 | d | 58.30 | 43.53 | 33.48 | 14.79 | 37.01 | a | ||||||||
1949 | 15.58 | a | 13.66 | 23.82 | 42.59 | a | 55.11 | 66.00 | 67.47 | 65.10 | 52.24 | a | 47.56 | 30.08 | 16.35 | 41.30 | ||||||||||
1950 | 7.61 | 12.73 | 18.29 | 29.97 | 49.95 | 61.30 | 61.44 | 58.39 | ----- | z | ----- | z | 21.29 | i | 11.76 | 34.60 | c | |||||||||
1951 | 9.19 | 14.34 | 22.32 | 38.36 | a | 57.55 | a | 59.40 | a | 65.16 | 60.21 | 52.52 | 45.02 | 19.52 | i | 15.03 | 39.92 | a | ||||||||
1952 | 13.65 | 19.17 | 23.27 | 42.52 | b | 52.26 | 63.63 | 66.21 | 61.97 | a | 57.72 | 40.13 | d | 32.25 | 22.82 | a | 41.30 | |||||||||
1953 | 16.58 | 16.43 | a | 28.02 | 36.62 | 53.60 | 63.74 | a | 65.32 | 66.15 | 56.08 | 51.95 | 35.50 | 18.98 | 42.41 | |||||||||||
1954 | 11.15 | a | 26.44 | a | 22.02 | 40.57 | 46.39 | 64.35 | 65.52 | 61.56 | 52.90 | 43.78 | a | 33.13 | 18.18 | 40.50 | ||||||||||
1955 | 10.06 | 12.11 | a | 20.53 | 46.75 | 56.63 | a | 60.92 | 70.37 | 68.00 | 56.07 | 46.95 | 25.22 | 12.85 | 40.54 | |||||||||||
1956 | 14.66 | 13.86 | 22.08 | 38.14 | b | 51.23 | 63.71 | b | 61.69 | 63.21 | 52.98 | 51.74 | 31.07 | b | 20.24 | 40.39 | ||||||||||
1957 | 5.37 | a | 15.55 | 25.44 | 41.63 | 52.18 | 61.57 | 68.10 | 62.84 | 52.53 | 43.90 | 29.14 | a | 17.56 | 39.65 | |||||||||||
1958 | 17.08 | 13.28 | c | 27.25 | a | 41.75 | 51.81 | 56.85 | 63.66 | 63.62 | a | 57.67 | a | 47.05 | 31.48 | 8.50 | a | 40.00 | ||||||||
1959 | 4.44 | 10.29 | 26.12 | a | 40.30 | 56.84 | 63.72 | 65.98 | 67.67 | a | 56.87 | 41.02 | 20.80 | 23.87 | a | 39.82 | ||||||||||
1960 | 13.94 | 17.02 | 16.66 | 42.07 | 52.08 | a | 58.80 | 64.66 | 66.08 | 57.40 | 45.56 | 32.92 | 14.29 | 40.12 | ||||||||||||
1961 | 10.90 | 20.41 | a | 29.58 | a | 37.52 | 49.03 | 63.77 | o | 64.48 | 64.90 | 55.72 | 46.84 | 28.65 | 13.19 | 38.29 | a | |||||||||
1962 | 5.81 | 10.41 | 25.87 | 38.22 | 56.82 | 61.13 | 63.05 | 63.42 | e | 51.45 | 45.26 | f | 30.67 | 14.36 | b | 38.29 | a | |||||||||
1963 | -0.31 | 5.23 | 27.60 | 41.50 | a | 49.52 | 63.98 | 67.44 | 61.16 | 55.02 | 53.34 | 33.03 | 8.05 | a | 38.80 | |||||||||||
1964 | 17.29 | 15.52 | 20.27 | 40.20 | b | 58.23 | 61.47 | 66.92 | 58.56 | 53.18 | 42.89 | 30.77 | 11.40 | 39.72 | ||||||||||||
1965 | 8.88 | b | 8.96 | 17.05 | 37.23 | 56.18 | 60.23 | 63.15 | a | 61.65 | 50.29 | a | 45.42 | a | 30.62 | 23.31 | 38.58 | |||||||||
1966 | 4.28 | a | 15.55 | 29.02 | 37.10 | a | 47.87 | 63.47 | a | 70.29 | 62.20 | a | 55.02 | 43.40 | 29.85 | 17.62 | a | 39.64 | ||||||||
1967 | 15.35 | r | 7.46 | 25.77 | 40.08 | 47.65 | 62.00 | 63.32 | a | 59.18 | 54.60 | 43.53 | 26.27 | 17.02 | a | 40.63 | a | |||||||||
1968 | 11.08 | 11.57 | 32.60 | 43.28 | 50.58 | 60.68 | 64.61 | 63.35 | 55.98 | 46.97 | 29.70 | 16.23 | 40.55 | |||||||||||||
1969 | 11.66 | 16.09 | 19.65 | a | 43.50 | a | 54.29 | 54.79 | d | 64.37 | 67.50 | 54.57 | 39.79 | 28.20 | 17.62 | a | 39.34 | |||||||||
1970 | 5.19 | 12.50 | 21.24 | 42.50 | 54.02 | 65.70 | 68.24 | 65.85 | 58.02 | 49.20 | a | 31.04 | e | ----- | z | 43.05 | a | |||||||||
1971 | 4.81 | 14.23 | 21.52 | a | 39.37 | 48.85 | 66.79 | a | 62.42 | 62.82 | 58.43 | 52.98 | 30.58 | ----- | z | 42.07 | a | |||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 10.95 | 13.50 | 24.23 | 39.55 | 51.90 | 61.41 | 65.53 | 63.22 | 55.14 | 44.98 | 29.60 | 16.48 | 39.96 | |||||||||||||
S.D. | 5.36 | 5.12 | 4.75 | 3.89 | 3.51 | 3.36 | 2.61 | 2.71 | 2.56 | 4.13 | 3.56 | 4.75 | 1.37 | |||||||||||||
SKEW | -0.07 | -0.07 | 0.69 | 0.16 | 0.09 | 0.01 | 0.65 | 0.19 | -0.15 | -0.09 | -0.21 | 0.24 | 0.17 | |||||||||||||
MAX | 22.24 | 26.44 | 38.19 | 49.13 | 58.92 | 68.37 | 72.39 | 70.34 | 60.13 | 53.34 | 36.23 | 27.31 | 43.17 | |||||||||||||
MIN | -0.77 | -0.19 | 16.29 | 29.97 | 44.24 | 54.79 | 61.40 | 57.69 | 49.24 | 34.35 | 20.80 | 7.03 | 36.91 | |||||||||||||
YRS | 57 | 58 | 59 | 61 | 60 | 60 | 61 | 59 | 59 | 56 | 56 | 59 | 42 |