YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1913 | ----- | z | 40.23 | 43.08 | g | 48.90 | a | 57.52 | a | 61.95 | 68.06 | 69.75 | a | 63.30 | 52.89 | 46.36 | a | 37.45 | b | 54.64 | b | |||||
1914 | 42.90 | a | 42.46 | 50.33 | b | 51.80 | c | 59.87 | a | 62.09 | c | 72.88 | a | 71.32 | 60.30 | 53.87 | 41.10 | a | 33.71 | 53.55 | ||||||
1915 | 40.11 | 42.98 | 49.03 | 54.43 | a | 55.26 | 63.81 | a | 71.16 | 74.15 | 62.07 | 53.87 | 43.78 | 40.45 | 54.26 | |||||||||||
1916 | 33.58 | 43.82 | a | 47.27 | 51.55 | a | 54.13 | 63.60 | 67.16 | 70.55 | 63.83 | 50.97 | 40.22 | 32.39 | 51.59 | |||||||||||
1917 | 33.32 | 36.98 | 39.27 | 49.55 | 54.58 | 63.82 | 74.00 | 72.27 | 64.10 | a | 55.05 | 46.31 | a | 41.21 | 52.54 | |||||||||||
1918 | 40.18 | 41.16 | 46.40 | 52.07 | 55.42 | 70.53 | 70.24 | 69.95 | 66.53 | 53.85 | 41.00 | 36.26 | 53.63 | |||||||||||||
1919 | 39.06 | 40.07 | 44.87 | 52.27 | 59.10 | 63.15 | 73.58 | 72.06 | 62.47 | 48.53 | a | 41.23 | b | ----- | z | 54.22 | a | |||||||||
1920 | 37.34 | 39.55 | 44.19 | 48.73 | 56.02 | a | 63.73 | 69.92 | 72.61 | 61.55 | 50.25 | a | 43.68 | 41.65 | 52.44 | |||||||||||
1921 | 38.45 | 42.25 | 47.74 | 50.64 | a | 55.79 | b | 65.53 | 69.50 | 69.42 | 59.63 | 54.89 | 45.68 | 36.76 | 53.02 | |||||||||||
1922 | 32.56 | 39.02 | 43.40 | 47.58 | 57.28 | a | 66.63 | 72.68 | 66.87 | 63.93 | 52.77 | 40.27 | 37.73 | 51.73 | ||||||||||||
1923 | 37.82 | a | 39.14 | 44.76 | 50.88 | 57.15 | 62.02 | 70.21 | 69.71 | 64.30 | 50.31 | 43.98 | 36.32 | 52.22 | ||||||||||||
1924 | 37.02 | 43.31 | 42.50 | a | 53.43 | 62.27 | 65.80 | 70.23 | 69.03 | 62.74 | a | 51.58 | 43.72 | 34.53 | 53.01 | |||||||||||
1925 | 40.24 | 44.71 | 47.18 | a | 52.65 | 59.84 | 65.00 | 73.19 | 68.53 | 58.97 | 50.18 | 42.76 | a | 36.63 | 53.32 | |||||||||||
1926 | 37.34 | 45.86 | 48.92 | 57.25 | 58.90 | 69.17 | 72.18 | 69.08 | 58.28 | 54.32 | 49.02 | 37.69 | 54.83 | |||||||||||||
1927 | 41.23 | 42.26 | a | 44.39 | 49.65 | 55.06 | 65.32 | 71.21 | 69.68 | 60.44 | c | 53.32 | a | 46.25 | 35.42 | 52.85 | ||||||||||
1928 | 39.40 | 41.90 | 48.32 | 49.57 | 61.48 | 62.67 | 71.11 | 69.06 | 62.52 | 51.03 | 43.77 | 35.47 | a | 53.02 | ||||||||||||
1929 | 33.94 | 37.46 | 45.55 | 47.02 | 56.77 | 63.07 | 70.40 | 70.11 | 60.10 | 52.97 | 41.78 | 41.55 | 51.73 | |||||||||||||
1930 | 32.02 | 44.66 | 48.32 | 53.85 | 54.65 | 63.33 | 70.79 | 70.56 | 61.87 | 51.80 | a | 42.90 | 36.23 | 52.58 | ||||||||||||
1931 | 39.50 | 42.23 | 47.08 | 54.07 | 63.48 | 63.98 | 73.16 | 70.53 | 61.22 | 52.35 | 39.77 | 38.47 | 53.82 | |||||||||||||
1932 | 35.13 | 38.67 | 46.97 | 49.43 | 56.32 | 66.42 | 67.77 | 68.16 | 65.03 | 53.02 | 45.63 | 35.47 | 52.34 | |||||||||||||
1933 | 34.63 | 36.82 | 45.87 | 51.48 | a | 52.06 | 64.45 | 72.32 | 72.10 | 59.75 | 55.92 | 42.02 | 42.10 | 52.46 | ||||||||||||
1934 | 41.77 | 45.30 | 54.15 | 57.42 | 61.37 | 64.80 | 70.37 | 72.79 | 63.82 | 54.21 | 46.57 | 40.35 | 56.08 | |||||||||||||
1935 | 36.81 | 43.80 | 42.66 | 51.13 | 57.23 | 65.28 | 69.35 | 71.74 | 66.87 | 51.87 | 39.33 | 38.35 | 52.87 | |||||||||||||
1936 | 40.58 | 41.84 | 45.48 | 54.43 | 60.19 | 65.00 | 69.90 | 70.32 | 62.30 | 55.82 | 41.82 | 36.55 | 53.69 | |||||||||||||
1937 | 27.47 | 39.66 | 46.52 | 49.30 | 57.69 | 64.57 | 71.19 | 68.10 | 62.60 | 53.55 | 46.55 | 39.89 | 52.26 | |||||||||||||
1938 | 37.82 | 40.05 | 43.73 | 51.65 | 58.60 | 66.97 | 74.48 | 68.35 | 65.58 | 53.85 | 41.07 | 39.48 | 53.47 | |||||||||||||
1939 | 37.53 | 38.73 | 48.13 | 54.84 | b | 58.68 | 63.18 | 72.48 | 72.35 | 64.28 | 52.15 | 44.31 | a | 42.18 | 54.07 | |||||||||||
1940 | 42.50 | 43.95 | 48.90 | 52.83 | 61.47 | 69.18 | 70.34 | 72.11 | 62.40 | 54.06 | 42.93 | 41.71 | 55.20 | |||||||||||||
1941 | 42.13 | 47.05 | 49.79 | 51.47 | 58.85 | 62.97 | 73.16 | 68.90 | 59.32 | 51.85 | 46.92 | 40.32 | 54.39 | |||||||||||||
1942 | 41.63 | 41.12 | 45.50 | 50.92 | 55.26 | 62.30 | 72.19 | 72.24 | 64.18 | 54.42 | 45.32 | 39.87 | 53.75 | |||||||||||||
1943 | 35.05 | 44.61 | 47.73 | 53.57 | 56.03 | 61.52 | 70.79 | 66.89 | 67.93 | 52.71 | 43.87 | 38.44 | 53.26 | |||||||||||||
1944 | 39.05 | 40.98 | 45.42 | 49.35 | 57.23 | 62.27 | 70.26 | 68.05 | 64.52 | 56.55 | 42.32 | 40.06 | 53.00 | |||||||||||||
1945 | 39.89 | 42.77 | 43.37 | 50.08 | 58.34 | 63.42 | 72.53 | 70.56 | 61.67 | 54.84 | 44.47 | 40.34 | 53.52 | |||||||||||||
1946 | 36.90 | 40.73 | 44.23 | 51.50 | 59.50 | 61.92 | 70.90 | 70.69 | 61.25 | 48.50 | a | 42.60 | 39.79 | 52.38 | ||||||||||||
1947 | 35.48 | 44.73 | 48.89 | 52.87 | 61.02 | 61.27 | 68.02 | 66.42 | 64.23 | 54.18 | 42.40 | a | 38.65 | a | 53.18 | |||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.18 | a | 66.30 | a | 60.68 | 52.64 | b | 41.22 | 34.87 | 53.82 | f | |||
1949 | 28.47 | 37.28 | a | 46.15 | 54.27 | 58.95 | a | 64.70 | 69.45 | a | 67.45 | 64.40 | 48.81 | 45.58 | 36.23 | 51.81 | ||||||||||
1950 | 32.68 | 39.27 | 43.62 | a | 50.08 | 57.15 | 63.84 | a | 71.80 | c | 71.19 | 63.12 | 53.56 | 46.88 | 44.13 | 53.11 | ||||||||||
1951 | 38.37 | 41.89 | 43.95 | 55.83 | 57.03 | a | 67.03 | 71.16 | 69.29 | 65.29 | a | 50.97 | 44.79 | a | 35.11 | 53.39 | ||||||||||
1952 | 35.03 | 39.52 | 42.52 | a | 52.69 | a | 58.03 | 61.62 | 73.27 | 68.94 | 65.95 | 57.47 | 38.55 | 38.37 | 52.66 | |||||||||||
1953 | 41.81 | 41.85 | a | 44.74 | 50.02 | 52.06 | 58.42 | 69.08 | 67.58 | 65.55 | 51.02 | 48.62 | 39.22 | a | 52.50 | |||||||||||
1954 | 38.82 | a | 43.96 | 43.79 | 52.16 | a | 60.12 | a | 60.18 | 68.73 | 65.35 | 59.37 | 52.42 | a | 45.85 | 39.10 | 52.49 | |||||||||
1955 | 36.11 | 37.63 | a | 44.15 | 45.73 | 55.94 | 65.08 | 66.90 | 69.00 | 60.93 | a | 54.29 | 43.02 | 41.55 | a | 51.69 | ||||||||||
1956 | 41.55 | 37.31 | 43.81 | 52.68 | 58.30 | a | 61.37 | 72.05 | 67.69 | 62.26 | a | 50.88 | a | 40.40 | 34.15 | 51.87 | ||||||||||
1957 | 33.45 | 43.91 | 46.79 | 51.45 | a | 58.84 | 66.37 | 67.76 | 64.85 | 65.35 | 50.68 | 40.25 | 38.60 | 52.36 | ||||||||||||
1958 | 39.23 | a | 47.39 | 43.19 | 50.75 | 62.40 | 65.38 | 73.48 | 73.26 | 62.32 | 56.61 | 44.97 | 42.81 | 55.15 | ||||||||||||
1959 | 41.26 | 40.93 | 45.98 | 53.30 | 54.89 | 65.33 | 73.27 | 68.32 | 60.82 | 54.82 | 42.90 | 34.53 | 53.03 | |||||||||||||
1960 | 39.29 | 41.72 | 48.73 | 50.63 | 55.02 | 67.30 | 73.40 | 67.68 | 64.68 | 53.21 | 47.65 | t | ----- | z | 56.17 | b | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.53 | 41.57 | 45.96 | 51.65 | 57.73 | 64.20 | 70.94 | 69.62 | 62.80 | 52.91 | 43.50 | 38.31 | 53.09 | |||||||||||||
S.D. | 3.61 | 2.71 | 2.64 | 2.43 | 2.62 | 2.37 | 2.00 | 2.14 | 2.27 | 2.08 | 2.51 | 2.75 | 1.01 | |||||||||||||
SKEW | -0.76 | 0.09 | 0.39 | 0.13 | 0.05 | 0.35 | -0.29 | -0.05 | 0.05 | -0.13 | 0.13 | -0.06 | 0.85 | |||||||||||||
MAX | 42.90 | 47.39 | 54.15 | 57.42 | 63.48 | 70.53 | 74.48 | 74.15 | 67.93 | 57.47 | 49.02 | 44.13 | 56.08 | |||||||||||||
MIN | 27.47 | 36.82 | 39.27 | 45.73 | 52.06 | 58.42 | 66.90 | 64.85 | 58.28 | 48.50 | 38.55 | 32.39 | 51.59 | |||||||||||||
YRS | 46 | 47 | 46 | 47 | 47 | 47 | 48 | 48 | 48 | 48 | 47 | 46 | 44 |