YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1921 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1922 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1923 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | 30.61 | 34.90 | 42.65 | 48.60 | 54.26 | 55.48 | 50.50 | 39.94 | 29.20 | 24.77 | 41.09 | b | ||||||||||
1938 | 20.68 | 25.71 | 29.32 | 34.60 | 40.03 | 49.77 | 52.68 | 50.81 | 47.07 | 40.06 | 24.40 | ----- | z | 37.74 | a | |||||||||||
1939 | 20.97 | 15.70 | a | 25.84 | 33.97 | 41.35 | 50.63 | 53.65 | 52.87 | 48.57 | 35.94 | 29.23 | 24.19 | 36.08 | ||||||||||||
1940 | 20.97 | 23.69 | 30.35 | 34.19 | d | 42.10 | 49.80 | 54.03 | 51.84 | 48.70 | 38.48 | 27.43 | 28.35 | 37.50 | ||||||||||||
1941 | 25.58 | 29.00 | 30.27 | a | 31.87 | 41.90 | 46.20 | 52.74 | 52.55 | 48.13 | 39.55 | 27.80 | 23.61 | 37.43 | ||||||||||||
1942 | 22.48 | 21.89 | 24.45 | 34.20 | 38.84 | 47.07 | 53.00 | 52.03 | 46.87 | 37.71 | 30.30 | 24.81 | 36.14 | |||||||||||||
1943 | 22.97 | a | 24.50 | b | 29.94 | 36.23 | 40.42 | 49.27 | 53.77 | 53.55 | 47.53 | 34.87 | 25.90 | 21.16 | 36.68 | |||||||||||
1944 | 17.48 | 23.00 | 26.23 | 30.80 | 38.77 | 46.83 | 52.58 | 52.42 | 46.20 | 39.42 | 25.70 | 21.06 | 35.04 | |||||||||||||
1945 | 19.81 | 23.93 | 24.80 | a | 30.23 | 38.87 | 43.93 | 53.16 | 53.13 | 46.43 | 38.23 | 25.10 | 19.84 | 34.79 | ||||||||||||
1946 | 16.97 | 19.29 | 28.00 | 36.70 | 38.87 | 49.30 | 53.42 | 53.45 | 49.80 | 35.97 | 24.37 | 22.94 | 35.76 | |||||||||||||
1947 | 15.35 | 23.71 | 25.61 | 31.83 | 42.29 | 46.50 | 53.81 | 53.29 | 47.10 | 37.03 | 23.70 | 17.87 | 34.84 | |||||||||||||
1948 | 19.07 | c | 22.93 | a | 22.58 | 34.57 | g | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 21.53 | i | |
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 |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 20.21 | 23.03 | 27.33 | 33.59 | 40.55 | 47.99 | 53.37 | 52.86 | 47.90 | 37.93 | 26.65 | 22.86 | 36.03 | |||||||||||||
S.D. | 2.93 | 3.40 | 2.75 | 2.13 | 1.56 | 2.03 | 0.58 | 1.19 | 1.38 | 1.78 | 2.26 | 2.98 | 1.03 | |||||||||||||
SKEW | 0.07 | -0.56 | -0.20 | -0.20 | 0.02 | -0.55 | 0.00 | 0.52 | 0.59 | -0.35 | 0.28 | 0.09 | 0.20 | |||||||||||||
MAX | 25.58 | 29.00 | 30.61 | 36.70 | 42.65 | 50.63 | 54.26 | 55.48 | 50.50 | 40.06 | 30.30 | 28.35 | 37.50 | |||||||||||||
MIN | 15.35 | 15.70 | 22.58 | 30.23 | 38.77 | 43.93 | 52.58 | 50.81 | 46.20 | 34.87 | 23.70 | 17.87 | 34.79 | |||||||||||||
YRS | 11 | 11 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 9 |