YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.54 | e | 71.64 | j | 65.83 | c | ----- | z | ----- | z | ----- | z | 69.69 | j |
1920 | 22.27 | e | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 71.76 | 68.26 | 63.21 | k | 53.88 | a | 30.07 | 21.75 | a | 44.66 | f | |||
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 | 65.12 | 48.95 | a | 40.17 | 28.24 | 45.62 | h | |||
1924 | 13.02 | e | 26.04 | b | 29.77 | a | 49.95 | a | 53.63 | 65.53 | 72.71 | 73.85 | 61.30 | 56.70 | a | 37.75 | b | 14.28 | b | 46.21 | ||||||
1925 | 13.53 | a | 28.68 | 39.87 | a | 56.05 | 58.73 | 70.02 | 75.40 | b | 76.12 | a | 67.15 | 40.08 | e | 34.83 | a | 22.02 | 48.54 | |||||||
1926 | 19.90 | a | 30.57 | a | 34.56 | 49.00 | c | 67.35 | 69.43 | 77.32 | 75.60 | 60.55 | b | 50.89 | 31.24 | a | 21.81 | b | 49.02 | |||||||
1927 | 22.59 | b | 28.19 | a | 36.39 | 46.53 | a | 56.74 | 67.72 | c | 72.80 | a | 70.00 | 65.08 | 53.39 | 31.17 | c | 6.88 | b | 46.46 | ||||||
1928 | 20.69 | 27.47 | 37.56 | 43.52 | 62.97 | a | 64.62 | 75.53 | 74.80 | a | 60.58 | 51.85 | 35.87 | 27.97 | 48.62 | |||||||||||
1929 | 15.78 | m | 12.50 | 39.80 | a | 49.19 | a | 57.37 | a | 65.83 | 79.65 | a | 77.61 | 59.87 | 52.31 | 30.88 | b | 21.10 | e | 49.65 | a | |||||
1930 | 9.11 | 36.77 | 35.26 | 52.82 | 57.81 | 68.63 | 80.50 | 76.69 | 65.18 | 48.68 | a | 36.59 | a | 28.24 | 49.69 | |||||||||||
1931 | 28.88 | a | 35.36 | 34.53 | 49.36 | b | 57.82 | 77.30 | 80.32 | 75.72 | b | 70.86 | b | 55.29 | 36.50 | b | 24.19 | 52.18 | ||||||||
1932 | 16.82 | 25.88 | 26.79 | 51.93 | 62.61 | 71.45 | a | 77.71 | 76.29 | 64.62 | 47.39 | 34.74 | a | 17.15 | 47.78 | |||||||||||
1933 | 29.13 | 20.12 | 37.71 | 48.05 | b | 58.37 | a | 80.47 | 79.19 | 71.87 | 69.90 | 50.87 | 38.02 | 23.89 | 50.63 | |||||||||||
1934 | 26.88 | b | 28.79 | 35.27 | 51.17 | 71.17 | a | 74.13 | 82.06 | 74.93 | a | 59.67 | 54.67 | a | 40.19 | a | 24.58 | 51.96 | ||||||||
1935 | 20.08 | a | 32.88 | 39.58 | 43.20 | 52.66 | 65.60 | 83.48 | 75.83 | a | 66.90 | 49.47 | 31.40 | 23.52 | 48.72 | |||||||||||
1936 | 5.35 | -3.48 | 36.19 | 43.85 | 63.73 | a | 73.32 | 87.37 | 80.98 | 68.40 | 48.15 | 31.83 | 25.00 | 46.72 | ||||||||||||
1937 | 1.31 | 18.00 | 32.30 | a | 45.18 | 64.00 | a | 67.28 | a | 78.69 | 81.21 | b | 69.33 | l | 50.85 | u | 31.75 | 21.27 | 44.10 | b | ||||||
1938 | 21.44 | 20.11 | 39.98 | 49.75 | 57.45 | 71.05 | 77.25 | a | 78.87 | 68.27 | 58.40 | 32.00 | 27.08 | 50.14 | ||||||||||||
1939 | 29.44 | 18.98 | g | 39.26 | 49.72 | 69.76 | 69.50 | 78.90 | 73.44 | 68.97 | ----- | z | 39.73 | 31.34 | 55.00 | b | ||||||||||
1940 | 6.50 | 21.71 | 31.19 | 46.33 | 58.89 | 70.62 | 82.32 | 74.13 | 70.28 | 57.16 | 30.55 | 27.82 | 48.13 | |||||||||||||
1941 | 19.71 | 22.27 | 32.61 | 51.78 | 65.55 | 69.78 | 77.32 | 76.31 | 65.58 | 50.97 | 37.18 | b | 31.18 | a | 50.02 | |||||||||||
1942 | 24.18 | a | 21.88 | 34.15 | 53.40 | a | 55.76 | 67.48 | 73.74 | 74.08 | 57.98 | e | 50.75 | a | 37.25 | 22.52 | 47.76 | |||||||||
1943 | 10.74 | 28.41 | 28.90 | a | 52.75 | b | 56.85 | 69.07 | 78.83 | b | 76.84 | 62.53 | 52.18 | a | 35.08 | 26.47 | 48.22 | |||||||||
1944 | 25.62 | b | 17.81 | b | 26.12 | b | 43.72 | c | 64.52 | 67.56 | c | 73.08 | a | 72.62 | a | 62.31 | a | 52.54 | c | 34.72 | 23.36 | b | 47.00 | |||
1945 | 24.94 | 26.56 | b | 40.47 | 45.79 | b | 53.50 | d | 62.61 | b | 74.12 | b | 73.04 | c | 63.73 | b | 50.67 | b | 33.26 | c | 16.12 | a | 47.07 | |||
1946 | 24.81 | d | 27.31 | a | 43.45 | c | 55.67 | c | 54.98 | b | 69.86 | b | 77.71 | c | 70.88 | a | 63.48 | f | 47.31 | d | 33.96 | c | 26.35 | d | 48.39 | a |
1947 | 25.74 | 18.50 | a | 31.02 | d | 44.60 | a | 54.80 | c | 64.62 | a | 78.71 | c | 79.42 | a | 64.46 | d | 58.52 | b | 27.83 | d | 21.27 | c | 47.46 | ||
1948 | 16.05 | a | 17.29 | c | 29.05 | c | 54.04 | b | 60.46 | f | 64.02 | d | 75.22 | d | 74.74 | d | 68.06 | c | 49.80 | i | ----- | z | 19.66 | o | 49.81 | d |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.25 | g | 38.95 | 18.26 | b | 28.60 | j | |
1950 | 5.62 | g | 18.67 | a | 24.17 | a | 40.40 | a | 53.43 | a | 67.13 | c | 66.33 | k | 66.62 | b | 59.70 | g | 55.10 | k | ----- | z | 21.90 | b | 41.76 | e |
1951 | 14.92 | a | ----- | z | 22.55 | a | 44.66 | b | 57.93 | b | 63.60 | j | 71.18 | a | 69.92 | a | 57.81 | a | 47.02 | c | 30.00 | 12.31 | 42.83 | b | ||
1952 | 11.86 | c | 25.34 | a | 24.56 | 49.60 | a | 58.89 | 72.03 | 75.34 | 73.02 | a | 66.04 | c | 47.65 | 34.32 | 22.80 | a | 46.79 | |||||||
1953 | 23.43 | a | 22.79 | b | 34.90 | a | 41.04 | b | 57.55 | b | 69.69 | a | 73.39 | 74.24 | 63.56 | c | 56.77 | 39.21 | a | 23.97 | a | 48.38 | ||||
1954 | 14.13 | a | 40.43 | a | 29.42 | 49.28 | 53.88 | e | 68.85 | c | 76.55 | a | 72.53 | 62.89 | b | 46.66 | b | 40.86 | a | 24.07 | a | 48.30 | ||||
1955 | 21.65 | a | 14.55 | 32.12 | c | 55.39 | b | 63.79 | 65.85 | 79.18 | a | 78.43 | b | 64.00 | 50.78 | b | 24.10 | 10.38 | a | 46.69 | ||||||
1956 | 11.40 | a | 14.17 | 30.12 | a | 41.45 | a | 59.43 | a | 74.28 | a | 71.73 | 70.38 | c | 62.07 | c | 55.66 | b | 34.37 | 29.44 | 46.21 | |||||
1957 | 11.37 | 24.35 | b | 31.11 | d | 44.77 | 56.40 | a | 65.96 | b | 76.77 | a | 72.96 | c | 59.69 | d | 49.73 | 35.20 | b | 33.16 | b | 46.79 | ||||
1958 | 25.41 | b | 17.86 | 28.95 | l | 45.43 | i | 61.80 | d | 65.30 | 70.09 | c | 74.65 | a | 66.22 | c | 52.95 | b | 36.89 | b | 20.73 | 49.19 | b | |||
1959 | 13.72 | b | 13.85 | a | 37.69 | b | 47.48 | a | 57.48 | c | 72.34 | b | 74.71 | 76.48 | 60.48 | c | 45.02 | a | 26.28 | a | 31.31 | 46.40 | ||||
1960 | 17.38 | a | 15.24 | b | 19.80 | c | 46.83 | 56.98 | 65.67 | d | 75.02 | b | 72.85 | a | 64.48 | b | 52.23 | 35.29 | a | 19.57 | c | 45.11 | ||||
1961 | 17.04 | d | 27.24 | a | 38.36 | b | 42.72 | 55.70 | a | 68.93 | b | 72.93 | c | 75.24 | 60.24 | a | 52.14 | f | 34.78 | a | 18.26 | b | 46.49 | a | ||
1962 | 17.10 | b | 18.62 | 23.27 | e | 48.05 | b | 61.71 | b | 66.90 | a | 71.70 | d | 71.71 | g | 59.83 | 52.47 | 39.52 | a | 24.29 | 43.95 | a | ||||
1963 | 9.15 | 25.27 | 40.56 | d | 48.68 | b | 58.74 | 71.83 | 76.57 | a | 72.76 | d | 65.78 | c | 58.37 | a | 36.43 | b | 16.00 | b | 48.34 | |||||
1964 | 23.19 | d | 25.58 | c | 25.62 | a | 50.08 | d | 62.18 | 68.11 | c | 78.62 | c | 70.88 | g | 63.27 | j | ----- | z | ----- | z | ----- | z | 47.62 | e | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 18.22 | 22.99 | 32.98 | 48.15 | 59.31 | 68.98 | 76.56 | 74.47 | 64.11 | 51.56 | 34.52 | 22.73 | 48.11 | |||||||||||||
S.D. | 7.06 | 7.92 | 5.91 | 4.17 | 4.51 | 3.69 | 3.71 | 3.18 | 3.50 | 4.10 | 3.93 | 5.74 | 1.71 | |||||||||||||
SKEW | -0.36 | -0.60 | -0.35 | 0.06 | 0.79 | 0.93 | 0.55 | -0.11 | 0.06 | -0.30 | -0.52 | -0.60 | 0.70 | |||||||||||||
MAX | 29.44 | 40.43 | 43.45 | 56.05 | 71.17 | 80.47 | 87.37 | 81.21 | 70.86 | 58.52 | 40.86 | 33.16 | 52.18 | |||||||||||||
MIN | 1.31 | -3.48 | 19.80 | 40.40 | 52.66 | 62.61 | 70.09 | 66.62 | 57.81 | 40.08 | 24.10 | 6.88 | 45.11 | |||||||||||||
YRS | 39 | 38 | 39 | 39 | 39 | 39 | 41 | 39 | 38 | 36 | 40 | 41 | 29 |