YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1916 | ----- | z | ----- | z | ----- | z | 55.13 | 56.71 | 65.42 | 68.08 | 73.16 | 65.52 | 54.56 | 38.97 | 35.52 | 57.01 | c | |||||||||
1917 | 36.02 | 39.80 | 41.94 | 49.69 | a | 57.69 | 65.13 | 75.92 | 76.76 | 66.85 | 58.32 | 45.14 | b | 46.27 | a | 54.96 | ||||||||||
1918 | 42.98 | 38.39 | 46.03 | b | 55.00 | b | 58.05 | 71.95 | 73.69 | 70.18 | 69.98 | 57.82 | a | 44.12 | b | 38.17 | a | 55.53 | ||||||||
1919 | 34.89 | 39.84 | 47.29 | 54.28 | a | 59.00 | 64.30 | 73.77 | 73.24 | 63.10 | 51.74 | 42.08 | 28.60 | f | 54.87 | a | ||||||||||
1920 | 34.24 | 40.14 | a | 45.83 | a | 49.40 | 57.21 | 64.75 | 73.55 | 73.77 | 62.78 | 52.15 | 42.67 | a | 40.20 | a | 53.06 | |||||||||
1921 | 38.03 | a | 41.56 | a | 47.65 | a | 52.32 | 60.05 | b | 67.87 | 71.23 | 72.40 | 61.27 | 55.87 | a | 43.48 | b | 32.93 | a | 53.72 | ||||||
1922 | 27.10 | b | 35.28 | a | 42.88 | c | 49.55 | 59.11 | 71.10 | i | 74.85 | 72.77 | 67.68 | 60.11 | 48.50 | f | 33.23 | c | 52.26 | b | ||||||
1923 | 40.10 | 34.71 | 47.98 | b | 53.83 | 59.40 | a | 64.92 | 74.00 | a | 75.95 | 68.69 | a | 54.52 | 46.72 | a | 37.47 | b | 54.86 | |||||||
1924 | 31.52 | 45.11 | a | 48.02 | 55.45 | 66.03 | 67.62 | 72.97 | 72.42 | 64.82 | 53.85 | 42.07 | 33.52 | e | 54.45 | |||||||||||
1925 | 40.06 | 45.02 | a | 48.27 | 55.21 | b | 62.18 | 66.50 | b | 76.58 | 70.76 | 65.38 | a | 56.73 | a | 45.95 | 45.40 | 56.50 | ||||||||
1926 | 43.82 | 47.55 | 52.41 | b | 59.27 | 60.24 | 71.87 | 76.13 | 73.39 | 61.27 | 56.08 | 44.86 | a | 36.47 | a | 56.95 | ||||||||||
1927 | 28.67 | b | 41.70 | a | 46.81 | 53.52 | 59.40 | 70.26 | a | 76.48 | 75.35 | a | 63.59 | a | 56.34 | 48.24 | a | 34.72 | a | 54.59 | ||||||
1928 | 32.27 | 40.28 | 49.20 | a | 53.00 | 66.45 | 68.03 | 75.47 | b | 73.63 | 66.64 | a | 56.00 | a | 44.30 | b | 35.84 | c | 55.09 | |||||||
1929 | 29.29 | b | 30.31 | a | 50.22 | a | 53.12 | 63.63 | 67.76 | a | 73.61 | 76.34 | 64.58 | 56.79 | 41.61 | b | 40.62 | a | 53.99 | |||||||
1930 | 17.79 | e | 43.07 | a | 49.63 | 58.09 | a | 59.31 | 64.60 | 73.90 | 75.56 | 66.43 | 52.90 | 43.12 | b | 36.71 | 53.43 | |||||||||
1931 | 37.87 | 41.09 | 46.73 | 54.95 | 64.90 | 66.68 | 75.26 | 73.71 | 65.67 | a | 54.98 | 40.43 | 30.79 | b | 54.42 | |||||||||||
1932 | 35.71 | c | 36.55 | a | 43.60 | j | 52.70 | b | 61.24 | d | 70.38 | 70.26 | 72.82 | 67.98 | a | 57.65 | a | 46.47 | 32.35 | 54.92 | a | |||||
1933 | 36.69 | 33.61 | 46.02 | 52.98 | 57.26 | d | 68.78 | 74.82 | a | 73.95 | a | 61.06 | f | 56.42 | f | 44.90 | f | 42.23 | c | 54.04 | c | |||||
1934 | 42.04 | f | 44.61 | i | 50.66 | l | 59.64 | a | 61.77 | c | 68.05 | a | 71.90 | a | 74.45 | a | 64.27 | f | 56.81 | j | 48.29 | r | 39.58 | g | 67.16 | g |
1935 | 35.63 | p | 40.28 | c | 42.20 | i | 51.25 | 60.21 | b | 67.69 | n | 67.07 | q | 72.30 | c | 68.64 | a | 52.00 | h | 38.22 | e | 36.24 | h | 55.15 | f | |
1936 | 37.33 | v | 23.93 | h | 45.13 | h | 57.08 | 62.64 | b | 67.47 | a | 72.55 | a | 73.87 | d | 64.43 | a | 56.70 | a | 36.07 | b | 40.23 | c | 59.00 | c | |
1937 | 18.63 | a | 33.62 | b | 47.68 | 50.85 | 60.40 | a | 67.78 | 74.48 | a | 69.90 | a | 66.30 | b | 58.08 | 46.52 | e | 39.81 | b | 52.84 | |||||
1938 | 37.67 | a | 38.13 | a | 45.50 | 55.65 | 60.57 | j | 67.90 | a | 76.02 | 68.29 | 67.76 | a | 52.63 | 39.05 | a | 37.22 | a | 53.26 | a | |||||
1939 | 38.37 | a | 37.70 | c | 48.61 | 54.12 | a | 61.50 | a | 63.72 | c | 71.95 | 72.79 | 66.38 | 55.42 | 42.52 | 40.15 | a | 54.44 | |||||||
1940 | 33.31 | 42.09 | 51.02 | 55.98 | 64.03 | 71.30 | 73.37 | 73.53 | 68.57 | 57.63 | 39.86 | a | 35.35 | 55.50 | ||||||||||||
1941 | 34.90 | b | 40.52 | a | 50.15 | a | 56.05 | 60.21 | b | 67.30 | 76.53 | b | 72.97 | 62.55 | 53.97 | a | 43.43 | b | 39.13 | a | 54.81 | |||||
1942 | 26.34 | 39.45 | 45.50 | 54.00 | 57.98 | 64.10 | 75.11 | 73.56 | 67.78 | 55.98 | 41.33 | a | 39.31 | 53.37 | ||||||||||||
1943 | 27.03 | 39.07 | 44.19 | 54.70 | 57.61 | 64.17 | 73.10 | 69.73 | 67.18 | 55.08 | 42.73 | 36.35 | 52.58 | |||||||||||||
1944 | 34.50 | 38.84 | 44.47 | 52.18 | 59.65 | 63.93 | 72.52 | a | 70.65 | 66.82 | 58.79 | 44.10 | a | 35.26 | b | 53.48 | ||||||||||
1945 | 40.05 | a | 41.79 | 45.22 | a | 53.92 | 63.45 | 67.93 | a | 75.87 | 75.12 | a | 64.32 | 57.37 | 43.90 | a | 36.53 | 55.45 | ||||||||
1946 | 39.33 | a | 41.36 | 46.10 | 53.02 | a | 61.13 | 64.75 | 71.45 | a | 72.40 | 65.83 | 52.10 | a | 40.34 | b | 39.89 | c | 53.98 | |||||||
1947 | 33.09 | c | 43.09 | a | 50.02 | a | 56.50 | a | 64.95 | b | 64.57 | a | 70.58 | 70.00 | b | 67.07 | 55.50 | a | 45.65 | 41.39 | 55.20 | |||||
1948 | 36.52 | a | 35.76 | 43.19 | 51.10 | 58.50 | a | 69.60 | a | 67.75 | a | 67.82 | a | 64.24 | a | 52.71 | 43.78 | 33.44 | 52.03 | |||||||
1949 | 22.11 | 36.04 | 45.98 | 56.50 | 62.95 | 66.72 | 71.75 | a | 72.48 | 68.80 | 48.98 | 47.17 | 39.81 | 53.27 | ||||||||||||
1950 | 21.10 | 37.25 | d | 43.68 | 50.42 | 58.08 | 65.30 | 72.84 | 74.58 | 67.72 | 51.90 | 43.27 | 39.71 | 52.15 | ||||||||||||
1951 | 35.45 | 38.41 | 42.08 | 54.78 | 59.71 | 67.42 | 71.81 | 70.06 | 65.62 | 51.93 | q | 42.75 | 34.94 | 53.00 | a | |||||||||||
1952 | 28.68 | 39.41 | 44.95 | 54.22 | 61.44 | 64.78 | g | 75.23 | 73.94 | 69.60 | 60.48 | 36.82 | 36.52 | 52.84 | a | |||||||||||
1953 | 44.47 | 43.21 | 46.50 | 51.05 | s | 57.11 | 61.63 | 72.53 | 71.26 | 66.88 | 55.48 | 45.28 | 41.45 | 55.07 | a | |||||||||||
1954 | 32.03 | 39.59 | 42.92 | 52.00 | 60.42 | 62.57 | 69.44 | 68.69 | 65.70 | 52.29 | 48.95 | 36.47 | a | 52.59 | ||||||||||||
1955 | 37.69 | 39.62 | 41.23 | 48.38 | 57.74 | 66.67 | 68.24 | 73.00 | 65.80 | 54.63 | 37.63 | 36.14 | b | 52.23 | ||||||||||||
1956 | 36.02 | a | 31.88 | a | 45.61 | 55.50 | a | 63.77 | 63.87 | 73.92 | 71.68 | 66.07 | 52.69 | 41.45 | 37.79 | 53.35 | ||||||||||
1957 | 21.20 | a | 37.46 | 45.34 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 34.67 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 33.30 | 39.19 | 46.40 | 53.88 | 60.58 | 66.67 | 73.24 | 72.66 | 66.06 | 55.27 | 42.92 | 37.61 | 54.10 | |||||||||||||
S.D. | 6.84 | 3.62 | 2.68 | 2.60 | 2.62 | 2.54 | 2.36 | 2.16 | 2.13 | 2.56 | 3.10 | 3.42 | 1.28 | |||||||||||||
SKEW | -0.66 | -0.24 | 0.12 | -0.01 | 0.53 | 0.29 | -0.63 | -0.36 | -0.42 | -0.12 | -0.29 | 0.39 | 0.25 | |||||||||||||
MAX | 44.47 | 47.55 | 52.41 | 59.64 | 66.45 | 71.95 | 76.58 | 76.76 | 69.98 | 60.48 | 48.95 | 46.27 | 56.95 | |||||||||||||
MIN | 17.79 | 30.31 | 41.23 | 48.38 | 56.71 | 61.63 | 67.75 | 67.82 | 61.27 | 48.98 | 36.07 | 30.79 | 52.03 | |||||||||||||
YRS | 38 | 39 | 37 | 40 | 40 | 38 | 40 | 41 | 39 | 37 | 38 | 38 | 29 |