YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1915 | ----- | z | ----- | z | ----- | z | 52.02 | 55.71 | 58.90 | 64.02 | 65.90 | 58.55 | 53.48 | 42.33 | 38.05 | l | 56.36 | d | ||||||||
1916 | 28.02 | b | 41.84 | a | 43.34 | 49.37 | 51.85 | 58.42 | 59.40 | 61.60 | a | 56.92 | 46.67 | a | 40.58 | 35.83 | a | 47.82 | ||||||||
1917 | 36.26 | 38.57 | a | 39.66 | 46.18 | 52.39 | 56.42 | 61.19 | 63.71 | 57.33 | 51.48 | 48.32 | 42.94 | 49.54 | ||||||||||||
1918 | 42.00 | 38.57 | 45.71 | e | 49.32 | b | 52.16 | f | 58.97 | m | 63.18 | l | 63.83 | k | 61.67 | a | 52.76 | 44.88 | b | 40.89 | 46.97 | d | ||||
1919 | 41.16 | 39.93 | a | 44.44 | 49.40 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.73 | h | |||
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 57.95 | a | 49.63 | 45.85 | 40.60 | 48.51 | h | |||
1921 | 38.48 | a | ----- | z | ----- | z | 49.17 | 54.42 | a | 60.77 | b | 61.97 | a | 63.17 | a | 58.77 | b | 54.17 | a | 46.48 | b | 39.50 | a | 52.69 | b | |
1922 | 36.73 | a | 38.46 | 41.58 | a | 46.98 | 54.22 | a | 61.03 | 63.12 | c | 62.61 | c | 60.36 | h | 54.28 | d | 44.12 | 40.05 | a | 49.38 | a | ||||
1923 | 41.71 | 37.61 | a | 44.05 | a | 51.16 | a | 56.79 | 61.00 | 65.68 | c | 67.52 | c | 62.29 | b | 55.38 | c | 48.12 | 41.96 | f | 53.75 | a | ||||
1924 | 41.19 | d | 47.84 | d | ----- | z | ----- | z | ----- | z | ----- | z | 64.62 | g | ----- | z | 61.42 | e | ----- | z | ----- | z | 40.58 | l | 50.15 | i |
1925 | 42.07 | i | 43.84 | 44.81 | 49.98 | 56.98 | 59.12 | 63.50 | 61.73 | 58.52 | 50.27 | 44.77 | 45.33 | a | 52.62 | a | ||||||||||
1926 | 41.40 | 44.93 | 48.52 | a | 54.05 | 55.56 | 61.80 | 64.84 | 62.58 | 56.45 | 52.87 | a | 47.78 | a | 41.10 | 52.66 | ||||||||||
1927 | 39.28 | a | 42.45 | 43.37 | 47.63 | 51.23 | 60.55 | 63.40 | 64.34 | 58.31 | a | 47.53 | o | 45.55 | k | 37.79 | c | 50.83 | b | |||||||
1928 | 42.88 | b | 43.09 | 48.24 | 49.07 | 57.02 | 59.65 | 65.87 | a | 62.29 | e | 58.03 | 51.65 | 45.80 | 40.56 | 52.01 | ||||||||||
1929 | 35.45 | a | 36.25 | b | ----- | z | 47.73 | 54.92 | f | 58.39 | b | 62.85 | a | 63.47 | a | 59.08 | 54.10 | b | 44.30 | 42.98 | b | 50.46 | b | |||
1930 | 31.48 | g | 43.58 | b | 46.45 | 51.87 | 52.00 | 57.83 | 60.78 | b | 63.65 | 58.28 | 49.66 | b | 44.62 | a | 41.98 | a | 51.88 | a | ||||||
1931 | 43.79 | 42.61 | a | 46.68 | a | 50.84 | a | 56.34 | 58.55 | 63.37 | 62.77 | a | 59.04 | b | 51.93 | c | 42.48 | b | 39.70 | a | 51.51 | |||||
1932 | 37.73 | 40.12 | 45.50 | a | 49.78 | 52.98 | 59.83 | 60.08 | 62.22 | b | 58.03 | 53.68 | 47.75 | 36.45 | b | 50.35 | ||||||||||
1933 | 38.67 | a | 37.00 | a | 43.76 | 47.85 | 52.50 | 56.97 | a | 61.28 | a | 64.17 | a | 56.35 | 51.90 | 46.67 | a | 43.82 | 50.08 | |||||||
1934 | 44.63 | 46.71 | 49.32 | 54.11 | b | 55.55 | 60.34 | a | 61.37 | 64.63 | 57.28 | 54.10 | k | 48.74 | k | 42.05 | a | 53.60 | b | |||||||
1935 | 40.12 | b | 43.89 | a | 42.10 | 47.38 | 53.68 | 59.23 | b | 62.93 | b | 63.00 | a | 60.29 | f | 50.45 | 40.71 | p | 44.54 | e | 50.73 | b | ||||
1936 | 41.68 | a | 33.62 | a | 43.47 | a | 51.18 | 56.48 | 61.32 | 61.88 | w | 64.40 | a | 57.47 | 54.31 | 44.90 | 42.14 | b | 50.09 | a | ||||||
1937 | 30.38 | a | 39.89 | a | 47.00 | 47.91 | a | 54.48 | b | 61.21 | b | 63.58 | 62.52 | b | 58.97 | 54.48 | 46.76 | a | 42.97 | 50.85 | ||||||
1938 | 41.02 | a | 42.66 | 45.47 | 50.57 | 56.16 | 61.00 | d | 65.13 | 60.60 | 60.97 | 53.20 | c | 44.46 | b | 42.84 | b | 52.01 | ||||||||
1939 | 43.40 | a | 39.63 | a | 44.29 | b | 52.32 | 56.24 | b | 59.36 | a | 63.87 | e | 65.16 | 59.30 | 52.24 | 49.41 | c | 47.33 | a | 52.71 | |||||
1940 | 43.66 | 45.72 | 49.44 | 53.45 | a | 58.71 | 62.33 | 63.95 | b | 63.81 | 61.62 | a | 55.10 | b | 43.45 | 44.33 | b | 53.80 | ||||||||
1941 | 43.06 | 45.20 | 50.88 | b | 54.02 | 57.56 | 61.55 | 67.92 | 64.68 | a | 58.03 | 53.13 | 47.78 | 43.21 | 53.92 | |||||||||||
1942 | 40.27 | 42.96 | 46.53 | 52.92 | 57.03 | b | 60.70 | 64.94 | g | ----- | z | 59.91 | m | 53.45 | a | 45.82 | b | 44.57 | d | 49.36 | c | |||||
1943 | 37.57 | c | 42.72 | a | 44.77 | 53.22 | a | 54.57 | b | 59.55 | a | 63.37 | 64.00 | 60.57 | a | 57.52 | 55.61 | k | ----- | z | 53.79 | b | ||||
1944 | ----- | z | 42.40 | ----- | z | 50.73 | d | 55.05 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 42.54 | d | 47.68 | h | ||
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 63.15 | ----- | z | ----- | z | ----- | z | ----- | z | 63.15 | k | |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 39.62 | 41.56 | 45.39 | 50.36 | 55.02 | 59.83 | 63.19 | 63.51 | 58.85 | 52.71 | 45.54 | 41.84 | 51.44 | |||||||||||||
S.D. | 4.02 | 3.39 | 2.67 | 2.33 | 2.01 | 1.52 | 1.99 | 1.47 | 1.68 | 2.25 | 2.17 | 2.69 | 1.80 | |||||||||||||
SKEW | -1.35 | -0.32 | 0.10 | 0.07 | -0.29 | -0.48 | 0.19 | 0.59 | 0.60 | -0.54 | -0.30 | -0.42 | -0.42 | |||||||||||||
MAX | 44.63 | 47.84 | 50.88 | 54.11 | 58.71 | 62.33 | 67.92 | 67.52 | 62.29 | 57.52 | 49.41 | 47.33 | 53.92 | |||||||||||||
MIN | 28.02 | 33.63 | 39.66 | 46.18 | 51.23 | 56.42 | 59.40 | 60.60 | 56.35 | 46.67 | 40.58 | 35.83 | 47.82 | |||||||||||||
YRS | 25 | 27 | 24 | 28 | 25 | 25 | 23 | 25 | 25 | 25 | 23 | 25 | 12 |