YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1910 | ----- | z | 0.13 | w | 0.20 | 0.45 | 0.50 | 0.11 | ----- | z | 0.00 | 0.36 | ----- | z | ----- | z | ----- | z | ----- | z | ||||||
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | 0.00 | 0.00 | 0.00 | l | ----- | z | ||
1937 | ----- | z | ----- | z | ----- | z | ----- | z | 0.50 | 0.25 | 0.20 | 0.00 | 0.10 | 0.42 | 0.26 | 1.27 | ----- | z | ||||||||
1938 | 0.23 | 0.26 | a | 0.40 | 0.18 | 0.27 | 0.23 | 0.21 | 0.06 | 0.37 | 0.74 | 0.25 | 0.05 | 0.74 | a | |||||||||||
1939 | 0.28 | d | 0.15 | 0.17 | 0.11 | 0.20 | 0.14 | 0.24 | 0.05 | 0.25 | 0.49 | 0.00 | 0.41 | 0.49 | d | |||||||||||
1940 | 0.29 | 0.51 | 0.68 | ----- | z | 0.17 | 0.10 | 0.08 | 0.00 | 0.67 | 0.47 | a | 0.35 | 0.10 | ----- | z | ||||||||||
1941 | 0.18 | 0.39 | a | 0.04 | 0.74 | 0.57 | 0.69 | 0.13 | 0.38 | 0.20 | 0.34 | 0.18 | 0.35 | a | 0.74 | b | ||||||||||
1942 | 0.35 | a | 0.35 | 0.26 | 0.31 | 0.36 | 0.16 | 0.00 | 0.19 | 0.38 | 0.15 | 0.39 | 0.27 | b | 0.39 | c | ||||||||||
1943 | 0.38 | a | 0.48 | 0.20 | 0.25 | 0.45 | 0.31 | 0.04 | 0.00 | 0.20 | 0.59 | 0.07 | 0.23 | 0.59 | a | |||||||||||
1944 | 0.22 | 0.08 | 0.18 | 0.21 | 0.36 | 1.70 | 0.63 | 0.45 | 0.38 | 0.39 | 0.48 | 0.27 | 1.70 | |||||||||||||
1945 | 0.08 | 0.19 | 0.08 | b | 0.14 | 0.75 | 0.36 | 0.26 | 0.06 | 0.13 | 0.37 | 0.21 | 0.15 | 0.75 | b | |||||||||||
1946 | 0.07 | 0.11 | a | 0.25 | 0.05 | 0.19 | 0.29 | 0.10 | 0.05 | 0.19 | 0.58 | 0.66 | b | 0.39 | 0.66 | c | ||||||||||
1947 | 0.06 | 0.22 | 0.59 | 0.20 | 0.39 | 0.20 | 0.00 | 0.00 | 0.08 | 0.38 | 0.20 | c | 0.19 | 0.59 | c | |||||||||||
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.02 | 0.33 | 0.03 | 0.28 | 0.32 | ----- | z | |||||
1949 | 0.07 | 0.20 | a | 0.40 | 0.09 | 0.50 | 0.35 | 0.00 | a | 0.00 | 0.20 | 0.09 | 0.40 | 0.17 | 0.50 | b | ||||||||||
1950 | 0.17 | 0.03 | 0.82 | o | 0.11 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | n | 0.00 | 0.27 | 0.04 | 0.19 | 0.12 | 0.51 | ----- | z | ||||||
1952 | 0.20 | 0.18 | 0.20 | 0.67 | 0.20 | 0.06 | w | 0.16 | 0.16 | 0.51 | a | 0.00 | 0.16 | 0.30 | g | ----- | z | |||||||||
1953 | ----- | z | ----- | z | 0.50 | i | 0.12 | 1.00 | 0.26 | 0.00 | 0.39 | 0.00 | 0.24 | 0.32 | 0.26 | ----- | z | |||||||||
1954 | 0.22 | 0.24 | 0.17 | 0.21 | 0.37 | 0.35 | 0.00 | 0.08 | 0.05 | b | 0.18 | 0.30 | 0.25 | u | 0.37 | w | ||||||||||
1955 | 0.21 | r | 0.11 | ----- | 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 |
1959 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1960 | ----- | z | ----- | z | ----- | z | 0.25 | l | 0.24 | 0.00 | 0.06 | 0.25 | 0.07 | 0.08 | 0.57 | 0.10 | ----- | z | ||||||||
1961 | 0.10 | 0.13 | 0.18 | 0.09 | 0.43 | 0.15 | 0.43 | 0.33 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.19 | 0.23 | 0.27 | 0.25 | 0.41 | 0.33 | 0.14 | 0.14 | 0.24 | 0.30 | 0.27 | 0.31 | 0.71 | |||||||||||||
S.D. | 0.10 | 0.14 | 0.18 | 0.20 | 0.21 | 0.38 | 0.17 | 0.15 | 0.18 | 0.22 | 0.18 | 0.28 | 0.37 | |||||||||||||
SKEW | 0.24 | 0.74 | 1.14 | 1.46 | 1.21 | 2.87 | 1.52 | 0.79 | 0.74 | 0.23 | 0.42 | 2.51 | 2.13 | |||||||||||||
MAX | 0.38 | 0.51 | 0.68 | 0.74 | 1.00 | 1.70 | 0.63 | 0.45 | 0.67 | 0.74 | 0.66 | 1.27 | 1.70 | |||||||||||||
MIN | 0.06 | 0.03 | 0.04 | 0.05 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.39 | |||||||||||||
YRS | 15 | 16 | 15 | 16 | 18 | 17 | 18 | 20 | 19 | 19 | 19 | 16 | 10 |