YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1918 | ----- | z | ----- | z | ----- | z | 15.00 | 20.00 | l | 45.00 | p | 45.00 | 42.00 | 33.00 | 15.00 | f | ----- | z | ----- | z | ----- | z | ||||
1919 | -21.00 | d | -1.00 | e | 8.00 | i | 18.00 | a | 30.00 | a | ----- | z | ----- | z | ----- | z | 26.00 | ----- | 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 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
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 | -6.00 | ----- | z | |
1959 | -9.00 | 1.00 | 4.00 | 16.00 | 25.00 | 36.00 | 40.00 | 40.00 | 21.00 | 25.00 | d | 10.00 | i | 5.00 | -9.00 | m | ||||||||||
1960 | -15.00 | 4.00 | 10.00 | 20.00 | 30.00 | 38.00 | 42.00 | 41.00 | 34.00 | 20.00 | a | 10.00 | -0.00 | -15.00 | a | |||||||||||
1961 | -0.00 | 8.00 | 13.00 | 14.00 | 18.00 | 30.00 | 40.00 | 40.00 | a | 31.00 | 20.00 | 11.00 | 4.00 | -0.00 | a | |||||||||||
1962 | -10.00 | 11.00 | ----- | z | 24.00 | a | 20.00 | a | 30.00 | 41.00 | 39.00 | 35.00 | 28.00 | 10.00 | a | 4.00 | ----- | z | ||||||||
1963 | -10.00 | a | -9.00 | a | 12.00 | 15.00 | 30.00 | a | 30.00 | 40.00 | 40.00 | 40.00 | b | 38.00 | u | ----- | z | ----- | z | ----- | z | |||||
1964 | -17.00 | ----- | z | 7.00 | a | 16.00 | a | 22.00 | 33.00 | b | 46.00 | 42.00 | a | 38.00 | 22.00 | a | 11.00 | b | -0.00 | j | ----- | z | ||||
1965 | 5.00 | -0.00 | 14.00 | w | 17.00 | 21.00 | 36.00 | 45.00 | 46.00 | d | 27.00 | 24.00 | 11.00 | 3.00 | j | ----- | z | |||||||||
1966 | -9.00 | ----- | z | ----- | z | 12.00 | 34.00 | 42.00 | 50.00 | 46.00 | 40.00 | 21.00 | 19.00 | d | -9.00 | ----- | z | |||||||||
1967 | -1.00 | 9.00 | 5.00 | 18.00 | 16.00 | 39.00 | 49.00 | 45.00 | 37.00 | 19.00 | 17.00 | -3.00 | -3.00 | |||||||||||||
1968 | 4.00 | 11.00 | 12.00 | 20.00 | 23.00 | 32.00 | 47.00 | 41.00 | 33.00 | 22.00 | 5.00 | b | -3.00 | -3.00 | b | |||||||||||
1969 | 8.00 | 9.00 | 5.00 | 20.00 | 28.00 | 40.00 | 49.00 | 50.00 | 31.00 | 9.00 | ----- | z | 4.00 | ----- | z | |||||||||||
1970 | 2.00 | a | 10.00 | 10.00 | 12.00 | 22.00 | 36.00 | 50.00 | 50.00 | 25.00 | 11.00 | 11.00 | 8.00 | 2.00 | a | |||||||||||
1971 | -35.00 | 1.00 | a | 3.00 | 18.00 | 29.00 | 34.00 | 45.00 | 46.00 | a | 29.00 | 11.00 | 10.00 | 1.00 | -35.00 | b | ||||||||||
1972 | 2.00 | a | 7.00 | 15.00 | 21.00 | 33.00 | 40.00 | 51.00 | 43.00 | 38.00 | 17.00 | 14.00 | 2.00 | 2.00 | a | |||||||||||
1973 | 6.00 | 12.00 | 21.00 | 11.00 | 25.00 | 35.00 | 48.00 | 48.00 | 32.00 | 21.00 | 12.00 | 4.00 | 4.00 | |||||||||||||
1974 | -0.00 | -0.00 | 19.00 | 18.00 | 27.00 | 35.00 | 46.00 | 42.00 | 32.00 | 22.00 | 13.00 | b | 7.00 | -0.00 | b | |||||||||||
1975 | 2.00 | d | 2.00 | 10.00 | 13.00 | 20.00 | 35.00 | 49.00 | 47.00 | 40.00 | 15.00 | 1.00 | 6.00 | a | 1.00 | e | ||||||||||
1976 | -10.00 | 12.00 | -0.00 | 17.00 | 26.00 | 40.00 | 50.00 | a | 46.00 | 35.00 | 22.00 | -10.00 | -2.00 | -10.00 | a | |||||||||||
1977 | -11.00 | 8.00 | 10.00 | 21.00 | 31.00 | 48.00 | 50.00 | 48.00 | 41.00 | 32.00 | 11.00 | 5.00 | a | -11.00 | a | |||||||||||
1978 | 6.00 | -6.00 | 19.00 | 21.00 | a | 22.00 | 41.00 | 52.00 | 44.00 | 33.00 | 27.00 | a | 17.00 | -12.00 | a | -12.00 | c | |||||||||
1979 | -8.00 | 10.00 | 15.00 | 19.00 | 28.00 | 39.00 | a | 50.00 | 44.00 | 40.00 | 17.00 | a | 9.00 | b | 8.00 | -8.00 | d | |||||||||
1980 | 7.00 | b | -9.00 | 10.00 | 13.00 | 26.00 | 36.00 | 52.00 | 47.00 | 43.00 | 21.00 | 10.00 | 13.00 | -9.00 | b | |||||||||||
1981 | 13.00 | 9.00 | 18.00 | 21.00 | 29.00 | 35.00 | 50.00 | 47.00 | 40.00 | 22.00 | 10.00 | 4.00 | 4.00 | |||||||||||||
1982 | ----- | z | -8.00 | a | 18.00 | 24.00 | 30.00 | a | 42.00 | 48.00 | 50.00 | 36.00 | 9.00 | 18.00 | -0.00 | ----- | z | |||||||||
1983 | -0.00 | a | 4.00 | 11.00 | 8.00 | a | 29.00 | 39.00 | 49.00 | 50.00 | 35.00 | 32.00 | 7.00 | 4.00 | -0.00 | b | ||||||||||
1984 | -13.00 | 11.00 | b | 13.00 | a | 21.00 | 30.00 | 39.00 | 50.00 | 49.00 | 36.00 | 26.00 | a | 8.00 | 12.00 | a | -13.00 | e | ||||||||
1985 | 5.00 | -5.00 | 18.00 | 28.00 | a | 30.00 | 40.00 | 49.00 | 40.00 | 32.00 | 24.00 | 5.00 | 3.00 | -5.00 | a | |||||||||||
1986 | 9.00 | -3.00 | 11.00 | 21.00 | 26.00 | c | 41.00 | 50.00 | 49.00 | 32.00 | 26.00 | 16.00 | a | 9.00 | -3.00 | d | ||||||||||
1987 | -0.00 | 4.00 | a | 9.00 | 26.00 | f | 34.00 | 43.00 | 49.00 | b | 44.00 | 39.00 | a | 32.00 | a | 13.00 | 1.00 | a | -0.00 | l | ||||||
1988 | 1.00 | 13.00 | a | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | -3.30 | 3.97 | 11.46 | 17.73 | 26.47 | 37.38 | 47.40 | 44.87 | 34.32 | 21.32 | 10.35 | 2.56 | -5.67 | |||||||||||||
S.D. | 10.48 | 6.90 | 5.45 | 4.36 | 4.73 | 4.25 | 3.63 | 3.56 | 5.19 | 6.37 | 5.88 | 5.80 | 9.31 | |||||||||||||
SKEW | -0.97 | -0.51 | -0.13 | -0.04 | -0.41 | 0.10 | -0.94 | -0.06 | -0.56 | -0.28 | -1.53 | -0.60 | -1.75 | |||||||||||||
MAX | 13.00 | 13.00 | 21.00 | 28.00 | 34.00 | 48.00 | 52.00 | 50.00 | 43.00 | 32.00 | 19.00 | 13.00 | 4.00 | |||||||||||||
MIN | -35.00 | -9.00 | -0.00 | 8.00 | 16.00 | 30.00 | 40.00 | 39.00 | 21.00 | 9.00 | -10.00 | -12.00 | -35.00 | |||||||||||||
YRS | 30 | 29 | 26 | 30 | 30 | 29 | 30 | 30 | 31 | 28 | 26 | 27 | 18 |