YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 69.13 | a | 63.82 | b | 39.96 | g | 31.53 | ----- | z | 54.83 | i | |
1919 | 27.24 | b | ----- | z | 32.33 | a | 36.20 | ----- | z | 63.50 | 75.19 | 74.42 | 58.73 | 40.62 | b | ----- | z | 26.63 | a | 48.32 | c | |||||
1920 | 32.13 | 34.18 | a | 32.77 | 36.37 | ----- | z | 55.97 | ----- | z | 66.53 | a | ----- | z | 40.97 | 34.96 | b | ----- | z | 41.74 | d | |||||
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.62 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 61.62 | k |
1922 | ----- | z | ----- | z | ----- | z | 45.67 | 60.65 | ----- | z | ----- | z | ----- | z | 71.20 | 60.68 | l | 42.62 | a | 35.97 | 51.22 | g | ||||
1923 | 35.23 | 41.93 | 45.84 | 48.97 | 58.70 | a | 60.97 | a | 77.58 | 76.97 | 75.42 | d | 57.86 | b | 53.10 | 41.31 | b | 56.16 | ||||||||
1924 | 40.84 | 47.76 | 42.90 | 56.70 | 70.68 | 71.77 | 78.29 | 75.35 | 70.53 | 51.26 | 44.90 | 35.48 | 57.21 | |||||||||||||
1925 | 35.93 | a | 40.57 | 48.48 | 51.53 | 63.00 | a | 65.17 | 85.23 | 78.29 | 63.33 | 59.13 | 44.07 | 44.71 | 56.62 | |||||||||||
1926 | 41.52 | 42.64 | 48.53 | a | 59.70 | 60.35 | 76.37 | 78.90 | 75.65 | 63.83 | 58.10 | 49.80 | 37.16 | 57.71 | ||||||||||||
1927 | 37.61 | 38.96 | a | 42.65 | 48.38 | a | 53.35 | 67.87 | o | 77.61 | 76.35 | 63.43 | b | 59.87 | a | 43.00 | t | 39.21 | l | 55.36 | c | |||||
1928 | 41.50 | a | 44.61 | a | 47.10 | 46.90 | a | 68.00 | ----- | z | 78.68 | 77.97 | 72.59 | a | 56.52 | 44.57 | 39.93 | a | 56.21 | a | ||||||
1929 | 36.50 | a | 39.89 | a | 45.52 | 45.15 | c | 61.17 | a | 64.81 | c | 78.07 | a | 82.03 | 68.59 | c | 66.47 | a | 59.76 | a | 46.86 | c | 57.90 | |||
1930 | 34.11 | c | 46.42 | d | 51.90 | a | 56.31 | a | 54.92 | e | 68.34 | a | 78.50 | a | 77.47 | p | 77.62 | v | 58.97 | a | 57.11 | c | 41.81 | 54.84 | b | |
1931 | 42.07 | b | 46.86 | 49.48 | 59.79 | f | 72.39 | 71.45 | a | 85.81 | e | 67.71 | q | ----- | z | 59.77 | a | 45.39 | l | 38.62 | g | 61.12 | e | |||
1932 | ----- | z | 38.33 | b | 44.57 | a | 47.78 | c | 57.34 | b | 71.07 | 74.23 | a | 76.19 | 78.77 | 62.27 | a | 49.79 | a | 33.14 | b | 57.59 | a | |||
1933 | 34.74 | d | 36.81 | a | 42.94 | 51.11 | c | 49.90 | b | 66.70 | 80.23 | 81.61 | 66.44 | c | 70.59 | i | 56.03 | 42.87 | 55.40 | a | ||||||
1934 | 45.00 | 49.12 | b | 59.16 | 64.48 | a | 63.42 | 65.41 | a | 78.06 | 81.97 | 78.67 | o | 61.13 | a | 46.37 | 39.65 | 59.43 | a | |||||||
1935 | 36.19 | 43.57 | 41.13 | 49.73 | 62.06 | 69.43 | 74.55 | 80.84 | 79.55 | a | 56.81 | 46.00 | 43.15 | d | 56.92 | |||||||||||
1936 | 37.61 | 39.24 | 47.19 | 56.83 | a | 63.68 | 67.37 | 76.10 | 79.48 | 71.87 | 67.81 | 58.33 | 40.69 | e | 58.85 | |||||||||||
1937 | 27.57 | a | 33.52 | c | 43.48 | d | 47.90 | a | 63.08 | e | 67.57 | 77.97 | 76.32 | 72.92 | e | 64.57 | a | 46.17 | 44.55 | 55.47 | ||||||
1938 | 40.00 | 37.64 | 38.84 | 50.40 | 62.10 | b | 71.60 | 81.23 | 78.13 | 74.87 | 58.70 | a | 43.52 | a | 41.60 | a | 56.55 | |||||||||
1939 | 41.39 | c | 34.30 | a | 47.35 | 58.55 | a | 63.55 | 64.60 | 78.35 | 82.77 | 72.47 | 56.68 | f | 56.79 | b | 43.65 | e | 58.53 | a | ||||||
1940 | 43.03 | a | 40.69 | 50.07 | a | 54.03 | 65.58 | 75.23 | 76.71 | 82.37 | a | 66.03 | 58.90 | 41.89 | c | 42.86 | c | 58.12 | ||||||||
1941 | 40.33 | a | 44.48 | a | 55.00 | c | 53.14 | a | 58.68 | 61.83 | 78.74 | 73.13 | 63.77 | 57.39 | 50.67 | c | 39.68 | c | 56.40 | |||||||
1942 | 38.77 | 38.56 | a | 45.48 | b | 51.67 | 53.23 | 63.53 | 79.08 | f | 80.75 | c | 73.50 | 62.70 | a | 42.57 | b | 40.19 | e | 53.72 | a | |||||
1943 | 38.21 | c | 42.35 | b | 44.20 | u | 53.92 | e | 58.19 | 59.70 | 77.17 | a | 73.77 | a | 79.33 | 56.71 | 51.07 | a | 42.11 | c | 57.50 | a | ||||
1944 | ----- | z | 37.68 | g | 48.08 | f | 47.40 | 62.67 | d | 60.50 | 76.52 | ----- | z | 74.79 | b | 66.30 | a | 43.25 | b | 43.33 | a | 59.34 | d | |||
1945 | 41.29 | 40.50 | 40.11 | m | 49.57 | 57.26 | 67.80 | 81.29 | 78.94 | 71.53 | 64.19 | 39.31 | a | 36.71 | 57.13 | a | ||||||||||
1946 | 37.00 | 36.71 | ----- | z | 52.93 | 63.45 | 64.30 | 76.39 | 80.77 | 71.07 | 52.19 | 41.80 | 41.48 | 56.19 | a | |||||||||||
1947 | 38.65 | 48.46 | 51.52 | 56.33 | 68.10 | 54.33 | x | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 52.61 | g | |||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.84 | 72.58 | 66.70 | 59.39 | 44.10 | a | 31.97 | a | 57.93 | f | ||||
1949 | ----- | z | 37.36 | 41.55 | 57.87 | 64.94 | 71.97 | 79.65 | 76.76 | b | 80.10 | 65.23 | 65.41 | a | 42.48 | b | 62.12 | a | ||||||||
1950 | 38.35 | 44.59 | a | 45.48 | 53.73 | 62.87 | ----- | z | 78.52 | 80.35 | 71.14 | a | ----- | z | 47.28 | a | 45.26 | 56.76 | b | |||||||
1951 | 34.55 | 39.50 | 44.35 | 60.07 | 62.65 | 73.70 | 80.65 | 79.06 | 78.48 | c | 55.61 | 46.57 | 35.19 | 57.53 | ||||||||||||
1952 | 30.16 | 38.03 | 36.93 | a | 55.30 | 62.94 | 62.07 | 81.58 | 77.84 | 77.57 | 73.00 | 47.83 | 37.23 | 56.71 | ||||||||||||
1953 | 39.35 | 43.14 | 42.68 | 48.90 | 51.16 | 59.60 | 78.52 | 73.87 | a | 76.40 | 59.55 | 47.77 | 38.35 | 54.94 | ||||||||||||
1954 | 35.61 | 46.14 | 44.00 | 55.10 | a | 66.33 | a | 61.77 | 77.13 | 69.97 | 68.63 | 60.13 | 51.20 | 37.61 | 56.14 | |||||||||||
1955 | 35.10 | a | 37.54 | 40.39 | 42.07 | 56.71 | 68.87 | 71.71 | 80.65 | 71.83 | 61.26 | 41.34 | a | 35.74 | 53.60 | |||||||||||
1956 | 36.70 | a | 34.93 | 40.10 | 45.44 | u | 61.29 | 64.53 | 78.55 | 74.37 | a | 73.17 | 56.16 | 49.50 | t | ----- | z | 57.75 | c | |||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 37.32 | 40.89 | 44.83 | 51.49 | 61.31 | 66.37 | 77.71 | 77.13 | 71.29 | 59.05 | 47.50 | 39.67 | 56.68 | |||||||||||||
S.D. | 4.16 | 4.34 | 5.73 | 6.21 | 5.15 | 4.99 | 4.05 | 4.01 | 5.53 | 6.54 | 7.13 | 4.36 | 1.29 | |||||||||||||
SKEW | -0.65 | 0.20 | 0.06 | -0.51 | -0.22 | 0.11 | -1.59 | -0.71 | -0.28 | -0.97 | 0.33 | -0.88 | -0.62 | |||||||||||||
MAX | 45.00 | 49.12 | 59.16 | 64.48 | 72.39 | 76.37 | 85.81 | 82.77 | 80.10 | 73.00 | 65.41 | 46.86 | 58.85 | |||||||||||||
MIN | 27.24 | 33.52 | 32.33 | 36.20 | 49.90 | 55.97 | 61.62 | 66.53 | 58.73 | 40.62 | 31.53 | 26.63 | 53.60 | |||||||||||||
YRS | 32 | 33 | 31 | 34 | 34 | 31 | 34 | 33 | 33 | 32 | 33 | 32 | 16 |