YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1925 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1926 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.59 | a | ----- | z | 44.59 | k |
1927 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1928 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1929 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1930 | ----- | z | ----- | z | 48.10 | 61.03 | 62.39 | 67.93 | 81.68 | 82.42 | 70.97 | a | 51.03 | 34.40 | 27.13 | 58.71 | b | |||||||||
1931 | 30.97 | ----- | z | 44.00 | 57.20 | 69.03 | 70.83 | 83.13 | 82.81 | 65.13 | 56.90 | 34.03 | 27.97 | 56.55 | a | |||||||||||
1932 | 23.65 | 31.69 | 40.68 | 55.17 | a | 63.63 | a | 75.23 | 77.35 | 79.81 | 73.07 | a | 53.97 | 39.07 | 26.45 | 53.31 | ||||||||||
1933 | 29.87 | 28.04 | 40.23 | 54.07 | 57.19 | 72.07 | 80.68 | 82.29 | 62.43 | 54.21 | b | 37.57 | 33.65 | 52.69 | ||||||||||||
1934 | 32.55 | 39.50 | 49.97 | 65.97 | a | 68.87 | 74.40 | 81.55 | 82.67 | a | 64.03 | 55.19 | 42.33 | 29.81 | 57.24 | |||||||||||
1935 | 24.94 | 36.93 | 37.81 | 51.03 | 64.16 | 71.37 | 77.47 | a | 77.50 | a | 74.33 | 53.03 | 32.45 | a | 28.35 | 52.45 | ||||||||||
1936 | 29.87 | 16.79 | 39.90 | 58.03 | 70.42 | 71.90 | 82.29 | 82.16 | 69.03 | 62.13 | 38.50 | 32.00 | 54.42 | |||||||||||||
1937 | 12.32 | 28.50 | 44.52 | 51.50 | 65.35 | 71.73 | 82.19 | 75.68 | 71.23 | 60.80 | p | ----- | z | ----- | z | 55.89 | c | |||||||||
1938 | 29.25 | o | 33.36 | 41.16 | 56.67 | 66.84 | 76.50 | 84.97 | 79.55 | 78.47 | 57.48 | 35.50 | 27.60 | a | 58.01 | a | ||||||||||
1939 | 31.71 | 29.07 | 44.03 | 59.63 | 67.61 | 66.47 | 82.07 | a | 84.58 | 73.27 | 55.00 | a | 40.03 | 35.19 | 55.72 | |||||||||||
1940 | 29.10 | 35.03 | 47.16 | 56.10 | 67.23 | 77.07 | 81.84 | 82.61 | 75.43 | 54.32 | 31.67 | 30.55 | 55.68 | |||||||||||||
1941 | 29.68 | 36.50 | 51.71 | 60.62 | a | 61.71 | 68.00 | a | 82.16 | 75.32 | 60.03 | 53.48 | 41.57 | 31.03 | 54.32 | |||||||||||
1942 | 24.16 | 34.29 | 42.53 | a | 57.93 | 59.26 | 66.00 | 78.90 | 81.13 | 74.03 | a | 58.84 | 33.50 | 28.06 | 53.22 | |||||||||||
1943 | 16.35 | 36.25 | 39.48 | 58.40 | 59.93 | a | 67.50 | 81.42 | 77.23 | 74.63 | 54.71 | 36.67 | 27.58 | 52.51 | ||||||||||||
1944 | 26.16 | 32.93 | 40.68 | 55.40 | 63.50 | a | 70.30 | 80.57 | a | 77.58 | 71.76 | a | 60.67 | a | 35.00 | 23.48 | 53.17 | |||||||||
1945 | 28.94 | 34.00 | 38.52 | 50.73 | 64.74 | 67.97 | 81.65 | 81.94 | 65.03 | 54.90 | a | 33.52 | a | 28.52 | 52.54 | |||||||||||
1946 | 28.45 | 33.75 | 42.81 | 55.00 | 68.77 | 65.70 | 78.43 | a | 79.32 | 66.21 | a | 49.69 | b | 32.83 | 27.26 | 52.35 | ||||||||||
1947 | 24.32 | 37.86 | 49.06 | 56.83 | 69.03 | 64.87 | 76.94 | 74.81 | 68.80 | 50.58 | 34.93 | 30.65 | 53.22 | |||||||||||||
1948 | 28.68 | 30.34 | 40.71 | 49.07 | 58.52 | 72.73 | 73.35 | 70.13 | 66.14 | a | 53.53 | a | 37.23 | 21.10 | 50.13 | |||||||||||
1949 | 17.55 | 28.82 | 43.16 | 58.40 | 69.19 | 70.43 | 78.06 | 76.39 | 70.33 | 49.79 | b | 42.86 | a | 28.58 | 52.80 | |||||||||||
1950 | 10.74 | 32.96 | 39.23 | 48.77 | 61.16 | 69.67 | 78.80 | a | 80.10 | 74.07 | 48.00 | 35.50 | 32.06 | 50.92 | ||||||||||||
1951 | 26.81 | 34.07 | 37.81 | 55.90 | a | 64.42 | 68.43 | 79.29 | 75.23 | 69.33 | 49.55 | 37.50 | 19.33 | a | 51.47 | |||||||||||
1952 | 24.96 | c | 34.79 | 42.39 | 58.53 | 66.32 | 69.77 | 81.06 | 80.39 | 76.67 | 66.16 | 37.82 | b | 32.13 | 55.92 | |||||||||||
1953 | 37.00 | 38.14 | 46.42 | 52.23 | 63.77 | 66.07 | 80.55 | 76.61 | 70.53 | 60.45 | 42.53 | 33.29 | 55.63 | |||||||||||||
1954 | 24.84 | 40.61 | 42.06 | 51.93 | 66.77 | 66.97 | 77.60 | a | 73.39 | 66.28 | a | 54.81 | 45.50 | 32.00 | 53.56 | |||||||||||
1955 | 30.19 | 32.74 | a | 37.17 | a | 48.90 | 58.58 | 72.83 | 76.19 | 81.26 | 71.03 | 54.53 | a | 32.62 | a | 24.86 | c | 51.74 | ||||||||
1956 | 28.66 | b | 29.40 | d | 40.05 | k | ----- | z | ----- | z | 68.62 | a | 81.33 | g | 79.88 | f | 71.76 | e | 55.33 | d | 35.04 | e | 33.80 | p | 48.13 | f |
1957 | 19.08 | g | 31.44 | l | 48.22 | h | 59.05 | j | 72.95 | j | 74.50 | 79.78 | h | 75.12 | g | 77.57 | i | ----- | z | ----- | z | 35.19 | o | 74.50 | k | |
1958 | 34.77 | 40.54 | 45.83 | a | 54.41 | a | 75.97 | a | 76.50 | 84.87 | 87.97 | 69.07 | b | 62.56 | o | ----- | z | ----- | z | 63.33 | c | |||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 26.43 | 33.34 | 42.86 | 55.54 | 64.98 | 70.43 | 80.19 | 79.29 | 70.11 | 54.93 | 37.21 | 28.75 | 53.41 | |||||||||||||
S.D. | 6.30 | 4.96 | 3.93 | 4.13 | 4.35 | 3.52 | 2.69 | 3.88 | 4.46 | 4.20 | 3.93 | 3.80 | 1.78 | |||||||||||||
SKEW | -0.98 | -1.25 | 0.59 | 0.21 | 0.20 | 0.32 | -0.43 | -0.18 | -0.33 | 0.71 | 0.57 | -0.66 | 0.36 | |||||||||||||
MAX | 37.00 | 40.61 | 51.71 | 65.97 | 75.97 | 77.07 | 84.97 | 87.97 | 78.47 | 66.16 | 45.50 | 35.19 | 57.24 | |||||||||||||
MIN | 10.74 | 16.79 | 37.17 | 48.77 | 57.19 | 64.87 | 73.35 | 70.13 | 60.03 | 48.00 | 31.67 | 19.33 | 50.13 | |||||||||||||
YRS | 26 | 26 | 27 | 27 | 27 | 29 | 27 | 27 | 28 | 26 | 27 | 25 | 22 |