YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 74.13 | 71.37 | 58.31 | 45.08 | f | ----- | z | 67.93 | i | |||
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.60 | 77.31 | 77.94 | 75.68 | 62.27 | 49.86 | a | 45.29 | 65.85 | e | ||||||
1922 | 36.89 | 41.00 | 49.74 | 58.47 | 68.40 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 47.52 | i | 42.74 | 49.54 | f | |||||
1923 | 44.60 | a | 41.21 | 47.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 44.35 | i | ||
1924 | 34.02 | b | ----- | z | ----- | z | ----- | z | ----- | z | 79.52 | 77.85 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.80 | i | ||
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 | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 80.10 | 76.34 | 77.12 | 64.06 | 49.63 | 36.42 | 63.94 | f | ||||||
1932 | 38.31 | 48.50 | 46.44 | 59.88 | 66.84 | 76.03 | a | 80.61 | 78.92 | 67.98 | 56.82 | 46.30 | 34.81 | 58.45 | ||||||||||||
1933 | 40.26 | 38.71 | b | 52.06 | 56.05 | 67.02 | 77.57 | 80.50 | 78.43 | a | 75.42 | 63.77 | 50.14 | a | 45.15 | 60.42 | ||||||||||
1934 | 39.52 | a | 45.70 | 47.66 | 60.47 | 70.29 | 79.35 | 82.11 | 81.07 | b | 71.13 | 63.84 | 51.30 | 44.56 | 61.42 | |||||||||||
1935 | 46.85 | a | 46.16 | 53.77 | 62.00 | 65.60 | 76.15 | 78.75 | a | 80.32 | 67.55 | 61.39 | 47.58 | 39.47 | 60.47 | |||||||||||
1936 | 38.79 | 42.74 | 52.24 | 54.65 | g | 70.97 | 78.33 | 80.06 | 79.63 | d | 72.48 | a | 59.90 | a | 47.37 | 46.08 | 60.78 | a | ||||||||
1937 | 39.44 | ----- | z | ----- | z | 60.80 | 71.82 | 76.77 | 80.13 | 80.40 | 74.62 | 61.85 | h | 47.90 | 42.11 | 63.78 | c | |||||||||
1938 | 42.45 | b | 46.81 | j | ----- | z | ----- | z | ----- | z | ----- | z | 76.29 | x | 77.37 | a | 69.92 | 62.44 | e | 44.68 | b | 41.27 | 56.35 | f | ||
1939 | 42.92 | f | 39.87 | b | 53.08 | e | 60.62 | r | 69.55 | k | 77.81 | c | 78.00 | c | 74.80 | a | ----- | z | 57.58 | f | 43.50 | q | 43.76 | j | 64.71 | g |
1940 | 35.30 | c | 43.67 | f | 45.62 | s | 60.55 | s | 70.47 | p | 74.98 | d | 79.77 | g | 76.52 | g | ----- | z | 58.09 | o | ----- | z | ----- | z | 55.14 | j |
1941 | ----- | z | ----- | z | ----- | z | 59.15 | g | 68.05 | 73.42 | 77.05 | a | 76.90 | a | 71.37 | 63.02 | 51.17 | 44.08 | 65.63 | d | ||||||
1942 | 39.97 | 43.14 | 50.82 | 60.70 | b | 68.21 | 76.90 | 83.37 | d | 75.78 | h | 69.13 | 59.74 | 45.70 | y | 45.10 | 59.71 | b | ||||||||
1943 | 43.40 | 47.02 | 51.55 | 62.43 | 66.73 | 75.93 | 76.32 | 79.21 | 69.43 | a | 57.29 | 45.62 | a | 37.52 | 59.37 | |||||||||||
1944 | 38.24 | 45.16 | 50.66 | 57.48 | 68.42 | 77.50 | 79.76 | 78.42 | 69.37 | 60.87 | 48.60 | 38.30 | a | 59.40 | ||||||||||||
1945 | 41.85 | 48.85 | a | 53.81 | 58.55 | 71.28 | a | 75.45 | 78.19 | 79.45 | 72.37 | 59.52 | 51.40 | 41.31 | 61.00 | |||||||||||
1946 | 39.50 | 45.07 | 53.10 | 64.68 | 67.61 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 53.99 | g | |||||
1947 | ----- | z | ----- | z | ----- | z | 64.00 | v | 73.12 | a | 79.33 | 82.48 | 78.97 | ----- | z | ----- | z | ----- | z | ----- | z | 78.48 | h | |||
1948 | 39.62 | c | 45.33 | 50.07 | a | 65.88 | a | 71.79 | c | 79.39 | b | 80.50 | c | 81.05 | a | 73.62 | a | 62.23 | a | 48.83 | 48.05 | a | 62.20 | |||
1949 | 35.08 | 46.86 | 55.63 | 58.98 | a | 71.17 | b | 77.15 | 78.35 | a | 77.79 | 71.83 | 58.33 | b | 52.54 | c | 42.28 | m | 62.16 | a | ||||||
1950 | 47.04 | c | 52.00 | b | 55.65 | 64.10 | 71.77 | 80.92 | 80.34 | 79.71 | 75.20 | 67.10 | a | 52.09 | c | 44.91 | c | 64.24 | ||||||||
1951 | 42.31 | d | 46.08 | d | 48.31 | 58.93 | a | 70.81 | b | 77.78 | 81.60 | 79.15 | 71.11 | b | 63.32 | 45.93 | 42.63 | 60.66 | ||||||||
1952 | 46.02 | a | 42.74 | 48.28 | b | 59.43 | 67.19 | 79.52 | 77.65 | 79.69 | 70.43 | 57.71 | 44.53 | 38.08 | 59.27 | |||||||||||
1953 | 46.39 | 42.26 | a | 53.77 | a | 59.37 | 66.02 | a | 80.13 | 81.13 | 78.52 | 70.55 | 60.08 | a | 48.34 | a | 35.03 | 60.13 | ||||||||
1954 | 42.62 | a | 48.20 | c | 51.19 | 63.95 | a | 68.24 | b | 78.10 | 80.50 | 78.50 | a | 73.02 | a | 61.85 | d | 49.00 | 39.58 | a | 61.23 | |||||
1955 | 38.26 | 39.71 | 52.55 | c | 59.98 | a | 67.77 | 74.68 | 77.35 | 77.18 | a | 72.62 | 60.28 | b | 47.58 | j | 41.98 | 60.22 | a | |||||||
1956 | 42.10 | b | 38.07 | 51.15 | 56.72 | 70.18 | 79.50 | 79.55 | 76.66 | 71.70 | 62.64 | b | 43.34 | a | 40.90 | 59.38 | ||||||||||
1957 | 42.24 | 51.80 | 50.69 | 56.16 | a | 65.25 | c | 75.40 | 80.44 | 78.76 | 70.10 | a | 57.16 | b | 44.71 | a | 43.44 | 59.68 | ||||||||
1958 | 38.53 | 44.59 | 46.13 | 56.30 | 68.65 | 80.08 | 81.36 | q | 78.40 | 70.79 | a | 58.90 | 49.38 | 40.35 | a | 57.46 | a | |||||||||
1959 | 38.87 | 44.21 | 48.71 | 59.05 | 69.52 | a | 77.45 | 79.03 | o | 80.26 | 74.72 | e | 59.60 | b | 44.12 | d | 40.56 | 57.92 | a | |||||||
1960 | 36.16 | 44.41 | r | 52.62 | r | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.16 | k | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 40.50 | 44.60 | 50.97 | 60.02 | 68.95 | 77.42 | 79.62 | 78.50 | 71.88 | 60.86 | 48.10 | 41.53 | 60.49 | |||||||||||||
S.D. | 3.54 | 3.73 | 2.68 | 2.78 | 2.18 | 2.11 | 1.81 | 1.69 | 2.43 | 2.56 | 2.71 | 3.46 | 1.43 | |||||||||||||
SKEW | 0.23 | 0.15 | -0.11 | 0.48 | 0.12 | -0.42 | 0.06 | -0.79 | 0.33 | 0.30 | -0.13 | -0.25 | 1.11 | |||||||||||||
MAX | 47.04 | 52.00 | 55.65 | 65.88 | 73.12 | 80.92 | 83.37 | 81.07 | 77.12 | 67.10 | 52.54 | 48.05 | 64.24 | |||||||||||||
MIN | 34.02 | 38.07 | 46.13 | 56.05 | 65.25 | 72.60 | 76.32 | 74.13 | 67.55 | 56.82 | 43.34 | 34.81 | 58.45 | |||||||||||||
YRS | 29 | 25 | 25 | 23 | 26 | 28 | 26 | 28 | 27 | 26 | 24 | 26 | 15 |