| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1924 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.12 | 6.68 | w | 0.12 | k | |
| 1925 | 2.57 | 7.31 | 2.32 | x | 3.26 | 0.27 | 0.75 | 1.64 | 0.43 | 0.33 | y | 2.18 | 1.24 | 1.20 | 20.85 | b | ||||||||||
| 1926 | 5.75 | 9.15 | 0.91 | 3.98 | 0.77 | 1.19 | 1.95 | w | 0.00 | 0.00 | 0.90 | 5.73 | a | 5.78 | 34.16 | a | ||||||||||
| 1927 | 2.74 | 5.07 | b | 3.46 | 4.32 | s | 0.71 | 1.45 | 0.66 | 0.00 | 0.77 | 2.87 | 2.87 | a | 4.11 | b | 24.71 | a | ||||||||
| 1928 | 3.03 | a | 3.10 | 4.32 | a | 3.31 | 1.72 | 0.26 | 0.34 | 0.00 | ----- | z | 1.45 | 1.15 | c | 2.63 | a | 21.31 | a | |||||||
| 1929 | 3.01 | 3.93 | 7.12 | 2.10 | 0.80 | 0.42 | 0.00 | 0.62 | 0.29 | 0.07 | 0.00 | 3.87 | 22.23 | |||||||||||||
| 1930 | 6.84 | 2.79 | 4.80 | 2.81 | 2.16 | 0.00 | 0.00 | 0.20 | 0.33 | 1.25 | 1.31 | 0.07 | 22.56 | |||||||||||||
| 1931 | 5.27 | v | 2.95 | r | 1.84 | 2.45 | 0.75 | 1.00 | 0.00 | 2.10 | 0.63 | 1.77 | 5.24 | t | 6.21 | r | 10.54 | d | ||||||||
| 1932 | 3.41 | t | 7.26 | 0.75 | 0.62 | 0.96 | 1.10 | 0.00 | 0.00 | 1.23 | 0.38 | 0.43 | 1.97 | 14.70 | a | |||||||||||
| 1933 | 6.31 | 0.95 | 2.79 | 0.30 | b | 2.36 | y | 0.96 | a | 0.00 | 0.31 | 0.00 | 1.31 | 0.47 | 5.15 | 18.55 | a | |||||||||
| 1934 | 1.53 | 3.42 | a | 0.91 | 0.00 | 0.64 | 1.59 | u | 0.00 | 1.21 | 0.81 | 1.62 | 2.37 | 2.03 | 14.54 | a | ||||||||||
| 1935 | 7.48 | 2.56 | 3.62 | a | 5.79 | 0.14 | 0.00 | 0.33 | 2.25 | 0.03 | 1.01 | 1.05 | 3.31 | 27.57 | ||||||||||||
| 1936 | 3.13 | 9.23 | 1.56 | 1.64 | 0.28 | 0.94 | 2.36 | 0.57 | 0.04 | 2.26 | a | 0.00 | 8.03 | 30.04 | ||||||||||||
| 1937 | 4.12 | 6.94 | 2.44 | l | 0.67 | 0.00 | 0.00 | 0.47 | 0.00 | 0.00 | 0.25 | 1.11 | 4.87 | 18.43 | a | |||||||||||
| 1938 | 2.23 | 10.28 | 8.51 | 1.45 | 2.26 | 1.08 | 0.85 | 0.21 | 1.27 | 1.57 | 0.68 | 1.75 | 32.14 | |||||||||||||
| 1939 | 3.24 | 2.91 | 2.84 | 1.01 | 0.63 | w | 0.35 | 0.59 | 0.32 | 1.63 | 2.32 | 0.37 | 0.45 | 16.03 | a | |||||||||||
| 1940 | 13.18 | 8.28 | 2.72 | 0.96 | 0.00 | 0.30 | 0.00 | 0.06 | 0.45 | 1.51 | 0.61 | 12.77 | 40.84 | |||||||||||||
| 1941 | 6.58 | 6.84 | 3.52 | 3.63 | 0.30 | 0.41 | 0.00 | 0.73 | 0.78 | 3.33 | 0.51 | 7.96 | 34.59 | |||||||||||||
| 1942 | 3.05 | 3.87 | 3.85 | 3.72 | 2.16 | 0.00 | 0.00 | 0.38 | 0.27 | 0.38 | 2.30 | 3.79 | t | 19.98 | a | |||||||||||
| 1943 | 10.11 | a | 1.78 | 4.55 | 3.48 | 0.76 | a | 1.00 | 0.38 | 0.00 | 0.16 | 0.63 | 0.76 | 4.76 | 28.37 | |||||||||||
| 1944 | 5.91 | 6.62 | 2.26 | 2.03 | a | 0.57 | 0.00 | 0.00 | 0.00 | 0.03 | 0.11 | 5.86 | 3.32 | 26.71 | ||||||||||||
| 1945 | 1.38 | 7.66 | b | 3.84 | 1.24 | a | 3.83 | 0.36 | 0.26 | 2.38 | 0.53 | 5.94 | 2.71 | a | 4.87 | 35.00 | ||||||||||
| 1946 | 0.59 | 1.82 | b | 3.20 | a | 0.66 | 0.72 | 0.00 | 0.09 | 0.99 | 1.37 | 2.76 | 6.42 | b | 4.00 | 22.62 | ||||||||||
| 1947 | 0.14 | 0.97 | 0.62 | 0.73 | 0.09 | 0.00 | 0.00 | 0.36 | 0.12 | 1.27 | 0.66 | 0.79 | c | 5.75 | ||||||||||||
| 1948 | 1.57 | a | 1.50 | c | 2.33 | 3.45 | 0.29 | 1.30 | ----- | z | 0.00 | ----- | z | ----- | z | 0.12 | 4.31 | 14.87 | c | |||||||
| 1949 | 1.20 | 1.56 | 4.06 | 0.19 | 1.41 | 0.12 | 0.02 | 0.24 | 0.06 | 0.20 | 1.27 | 0.91 | a | 11.24 | ||||||||||||
| 1950 | 3.13 | c | 1.90 | a | 1.64 | 1.82 | 0.44 | 0.03 | 1.22 | 0.09 | 1.09 | a | 1.76 | ----- | z | ----- | z | 13.12 | b | |||||||
| 1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.10 | 0.10 | 0.10 | 0.15 | 1.60 | 11.45 | 13.50 | f | ||||||
| 1956 | 3.05 | 1.00 | a | 0.15 | 2.65 | 1.00 | 0.10 | 2.05 | 0.00 | 0.55 | 1.15 | 0.00 | 0.45 | 12.15 | ||||||||||||
| 1957 | 3.00 | 2.70 | 1.30 | 0.70 | 1.65 | 0.08 | 0.00 | 0.00 | 0.20 | 1.12 | 0.69 | 2.52 | 13.96 | |||||||||||||
| 1958 | 1.80 | 3.98 | 2.75 | 1.48 | 0.86 | 0.48 | 0.08 | 1.45 | 0.44 | 0.26 | 0.40 | 0.60 | 14.58 | |||||||||||||
| 1959 | 2.28 | 6.02 | 0.50 | 0.90 | 0.58 | 0.08 | 0.16 | 0.00 | 2.30 | 0.04 | 0.00 | 0.62 | 13.48 | |||||||||||||
| 1960 | 3.02 | 2.72 | ----- | z | 0.78 | 0.24 | 0.00 | 1.22 | 0.06 | 0.38 | 1.02 | 4.18 | 1.82 | 15.44 | a | |||||||||||
| 1961 | 0.50 | 1.24 | ----- | z | 1.10 | 0.78 | ----- | z | 0.26 | 1.44 | 1.18 | 0.78 | 2.28 | 1.22 | 10.78 | b | ||||||||||
| 1962 | 1.64 | ----- | z | 2.36 | 0.12 | 0.94 | a | 0.56 | 0.56 | 0.40 | 0.75 | 0.95 | 0.44 | 0.85 | 9.57 | a | ||||||||||
| 1963 | 5.55 | 1.20 | 3.46 | 3.85 | 2.00 | 1.80 | 0.00 | 0.34 | 1.58 | 0.75 | ----- | z | 0.50 | 21.03 | a | |||||||||||
| 1964 | 2.58 | f | 0.30 | 1.95 | 1.89 | 1.63 | ----- | z | 0.73 | 1.07 | 0.00 | 0.66 | 3.95 | 7.96 | 20.14 | b | ||||||||||
| 1965 | 4.59 | d | 1.05 | 0.80 | ----- | z | 0.56 | 0.76 | 0.90 | 2.20 | 0.50 | 0.25 | 11.10 | 3.50 | 26.21 | a | ||||||||||
| 1966 | 0.90 | 1.28 | 0.60 | 0.45 | 0.22 | 0.20 | 0.28 | 1.94 | 0.46 | 0.08 | 3.74 | 4.16 | 14.31 | |||||||||||||
| 1967 | 4.80 | ----- | z | 7.00 | 5.36 | 0.98 | 0.18 | 0.98 | 0.88 | 1.48 | 0.44 | ----- | z | ----- | z | 22.10 | c | |||||||||
| 1968 | 1.38 | 1.48 | 1.34 | 0.48 | 1.04 | 0.38 | 1.36 | d | 0.34 | 0.02 | 0.98 | 1.72 | 4.72 | 15.24 | ||||||||||||
| 1969 | 14.57 | b | ----- | z | ----- | z | ----- | z | 0.38 | 0.98 | 0.62 | 0.28 | 0.00 | 1.46 | 0.74 | ----- | z | 19.03 | d | |||||||
| 1970 | 4.98 | ----- | z | 1.68 | 0.60 | 0.00 | 0.24 | 0.22 | 0.00 | 0.00 | ----- | z | 5.66 | 4.96 | 18.34 | b | ||||||||||
| 1971 | 2.60 | 0.32 | 1.22 | 0.60 | 2.00 | 0.24 | 0.52 | 1.62 | 0.54 | 0.18 | 2.52 | 7.92 | 20.28 | |||||||||||||
| 1972 | 0.68 | 0.44 | 0.00 | 1.72 | 0.46 | 1.08 | 0.40 | 0.00 | 1.96 | 1.52 | 2.86 | 1.82 | 12.94 | |||||||||||||
| 1973 | 3.26 | 6.10 | 1.98 | 0.52 | 0.50 | 0.12 | 0.06 | 1.06 | 0.02 | 1.68 | 4.36 | 2.38 | 22.04 | |||||||||||||
| 1974 | 3.16 | 0.64 | 3.98 | 1.22 | ----- | z | 0.00 | 2.48 | 0.50 | 0.00 | 0.92 | 0.80 | 3.21 | 16.91 | a | |||||||||||
| 1975 | 0.99 | 4.76 | 3.76 | 2.98 | 0.42 | 0.42 | 0.36 | 0.48 | 1.94 | 3.08 | 0.68 | ----- | z | 19.87 | a | |||||||||||
| 1976 | 0.52 | 1.89 | 1.42 | 1.38 | m | 0.16 | 0.00 | 2.72 | 0.66 | 2.16 | 0.40 | 0.22 | 0.16 | 10.31 | a | |||||||||||
| 1977 | 1.68 | r | 1.32 | 1.03 | 0.28 | 1.58 | 1.86 | 0.20 | 0.28 | 0.12 | 0.42 | 1.98 | 5.14 | k | 9.07 | b | ||||||||||
| 1978 | 5.42 | 5.31 | 3.76 | 2.96 | 0.24 | 0.44 | 0.16 | 0.38 | 2.74 | 0.16 | ----- | z | 2.22 | 23.79 | a | |||||||||||
| 1979 | 4.90 | 2.74 | e | 4.28 | 0.80 | 0.48 | 0.06 | 0.26 | 0.34 | 0.14 | 0.65 | 1.20 | 3.74 | e | 19.59 | |||||||||||
| 1980 | 5.70 | 5.05 | y | 2.68 | o | 1.68 | 1.50 | 0.56 | 0.56 | 0.18 | 0.40 | 0.50 | 0.70 | 0.94 | 12.72 | b | ||||||||||
| 1981 | 4.10 | 1.14 | q | 3.06 | 0.48 | 0.56 | 0.30 | 0.30 | 0.10 | 0.36 | 2.36 | 3.70 | 4.42 | 19.74 | a | |||||||||||
| 1982 | 6.36 | 1.10 | 6.64 | 9.12 | a | 0.20 | 2.08 | 0.36 | 1.78 | 3.26 | 3.06 | 5.18 | 7.58 | 46.72 | ||||||||||||
| 1983 | 4.22 | 5.64 | 8.80 | 2.11 | a | 0.78 | 0.28 | 0.00 | 2.04 | 0.88 | 0.98 | 6.02 | 9.02 | 40.77 | ||||||||||||
| 1984 | 0.58 | 1.36 | 1.24 | 1.55 | 0.48 | 0.44 | 1.70 | 0.94 | 0.58 | 2.00 | 4.16 | 1.68 | 16.71 | |||||||||||||
| 1985 | 0.58 | 1.90 | 4.94 | 0.42 | 0.34 | 0.50 | 0.54 | 0.00 | 2.38 | 1.32 | w | 4.02 | 3.40 | 19.02 | a | |||||||||||
| 1986 | 3.22 | 12.12 | 4.50 | 0.60 | 0.18 | 0.00 | 0.10 | 0.02 | 0.26 | 0.24 | 0.06 | 0.48 | 21.78 | |||||||||||||
| 1987 | 2.62 | 1.42 | 2.00 | 0.52 | 1.26 | 0.46 | i | 0.10 | 0.02 | 0.00 | 1.16 | a | 2.12 | 3.00 | 14.22 | a | ||||||||||
| 1988 | 3.18 | 0.60 | 0.32 | 1.18 | 0.56 | 0.62 | 0.92 | 0.82 | 0.56 | 0.00 | 2.60 | 2.56 | 13.92 | |||||||||||||
| 1989 | 1.20 | 2.20 | 6.34 | 1.14 | 1.98 | 0.82 | 0.00 | 1.34 | 2.06 | 1.48 | 1.00 | 0.16 | 19.72 | |||||||||||||
| 1990 | 5.16 | 2.41 | 0.58 | 0.68 | 0.51 | 0.62 | 1.28 | 0.86 | 0.70 | 0.16 | 0.40 | 0.76 | 14.12 | |||||||||||||
| 1991 | 0.72 | 0.47 | 12.15 | 0.08 | 0.44 | 0.31 | 0.38 | 0.00 | 0.72 | 0.88 | 0.99 | 2.50 | 19.64 | |||||||||||||
| 1992 | 0.10 | 4.66 | 2.10 | 0.12 | 0.51 | 0.42 | 0.92 | 1.92 | 0.18 | 1.68 | 0.05 | ----- | z | 12.66 | a | |||||||||||
| 1993 | 8.27 | 6.01 | 1.78 | 0.69 | 0.37 | 0.43 | 0.00 | 0.04 | 0.05 | 0.41 | 1.01 | 0.86 | 19.92 | |||||||||||||
| 1994 | 0.67 | 3.19 | 1.09 | 0.46 | 1.63 | 0.07 | 0.21 | 0.00 | 1.15 | 2.35 | 3.10 | 1.81 | 15.73 | |||||||||||||
| 1995 | 11.50 | 0.49 | 8.51 | 0.80 | 1.36 | 0.85 | 0.15 | 0.18 | 0.00 | 0.00 | 0.07 | 2.97 | 26.88 | |||||||||||||
| 1996 | 3.82 | 5.49 | 2.85 | 1.45 | 2.17 | 0.15 | 0.58 | 0.00 | ----- | z | 1.37 | 4.66 | 6.76 | 29.30 | a | |||||||||||
| 1997 | 5.77 | 0.37 | 0.19 | 0.12 | 0.10 | 0.94 | 0.69 | 0.00 | 0.44 | 0.57 | 2.03 | 2.17 | 13.39 | |||||||||||||
| 1998 | 2.25 | 8.03 | 2.28 | 0.83 | 1.01 | 0.89 | 0.12 | 0.00 | 1.75 | 0.51 | 2.01 | 0.17 | 19.85 | |||||||||||||
| 1999 | 3.33 | a | 5.73 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.59 | 0.65 | 0.40 | 1.00 | 0.19 | 11.89 | e | ||||||
| 2000 | 3.34 | 4.26 | 0.71 | 1.95 | 0.27 | 0.47 | 0.00 | 0.96 | ----- | z | 2.66 | 0.75 | 0.00 | 15.37 | a | |||||||||||
| 2001 | 4.65 | 6.11 | 6.07 | 4.61 | 0.50 | ----- | z | 1.69 | 0.96 | 1.25 | 0.10 | e | 3.37 | 5.33 | 34.64 | a | ||||||||||
| 2002 | 2.65 | 1.30 | 1.18 | 1.62 | 0.66 | 0.36 | 0.42 | 0.17 | ----- | z | ----- | z | 2.92 | 4.39 | 15.67 | b | ||||||||||
| 2003 | 0.74 | 2.21 | 1.82 | 0.00 | 1.26 | 0.10 | 1.94 | 0.88 | 0.40 | 0.00 | ----- | z | 0.69 | 10.04 | a | |||||||||||
| 2004 | 1.23 | ----- | z | 0.30 | u | 0.80 | 1.41 | 0.79 | 1.01 | 1.42 | 0.34 | ----- | z | ----- | z | ----- | z | 7.00 | e | |||||||
| 2005 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2006 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2007 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2008 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | l |
| 2009 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | ----- | z | ----- | z | ----- | z | 0.00 | k | |
| 2010 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | ----- | z | 0.00 | 0.00 | ----- | z | ----- | z | ----- | z | 0.00 | i | |||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 3.64 | 3.60 | 2.99 | 1.65 | 0.86 | 0.50 | 0.55 | 0.58 | 0.69 | 1.14 | 2.05 | 3.25 | 21.87 | |||||||||||||
| S.D. | 2.93 | 2.83 | 2.42 | 1.61 | 0.71 | 0.49 | 0.66 | 0.67 | 0.76 | 1.05 | 2.06 | 2.80 | 9.39 | |||||||||||||
| SKEW | 1.59 | 0.89 | 1.42 | 1.99 | 1.46 | 1.18 | 1.57 | 1.18 | 1.34 | 1.70 | 1.68 | 1.23 | 0.85 | |||||||||||||
| MAX | 14.57 | 12.12 | 12.15 | 9.12 | 3.83 | 2.08 | 2.72 | 2.38 | 3.26 | 5.94 | 11.10 | 12.77 | 46.72 | |||||||||||||
| MIN | 0.10 | 0.30 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.75 | |||||||||||||
| YRS | 71 | 67 | 67 | 70 | 71 | 70 | 73 | 77 | 72 | 71 | 70 | 67 | 36 | |||||||||||||