| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1938 | 0.00 | z | 1.53 | q | 32.26 | 3.97 | i | 0.02 | 0.00 | 0.27 | 0.00 | 0.69 | 2.25 | a | 10.32 | 8.31 | i | 45.81 | ||||||||
| 1939 | 10.01 | p | 10.20 | a | 7.70 | 0.24 | x | 2.20 | 1.56 | y | 0.24 | z | 0.25 | z | 0.26 | 2.17 | v | 0.95 | v | 23.07 | i | 20.36 | ||||
| 1940 | 11.13 | m | 23.53 | 10.77 | 3.09 | 3.13 | 0.55 | 0.00 | 0.00 | 4.89 | 6.72 | 7.11 | 20.07 | 79.86 | ||||||||||||
| 1941 | 20.83 | 8.85 | 4.54 | 6.65 | 6.16 | 1.91 | u | 0.35 | z | 0.64 | 2.15 | 2.27 | 9.42 | 22.76 | 84.27 | |||||||||||
| 1942 | 12.35 | 11.62 | 3.47 | 6.03 | 8.93 | l | 0.63 | 0.02 | 0.00 | 0.25 | 2.34 | 27.01 | 30.85 | 94.57 | ||||||||||||
| 1943 | 18.74 | 5.10 | 9.66 | 7.13 | 3.66 | 2.41 | 0.07 | 1.03 | 0.17 | 10.53 | 8.52 | 4.45 | 71.47 | |||||||||||||
| 1944 | 9.10 | 5.01 | 5.03 | 7.25 | 3.07 | 3.53 | 0.26 | 0.33 | 0.68 | 4.69 | 15.56 | 7.87 | 62.38 | |||||||||||||
| 1945 | 7.80 | 17.43 | 14.32 | 4.38 | 4.92 | 1.77 | 0.00 | 0.12 | 1.32 | 3.09 | t | 24.18 | 24.75 | 100.99 | ||||||||||||
| 1946 | 13.39 | 11.16 | 10.02 | 2.52 | 1.48 | 1.10 | 0.14 | 0.00 | 1.42 | 5.36 | 16.71 | 4.72 | 68.02 | |||||||||||||
| 1947 | 7.99 | 3.61 | 15.05 | 2.52 | 0.22 | 5.46 | 5.28 | 0.88 | 0.76 | 13.33 | 3.02 | 5.30 | 63.42 | |||||||||||||
| 1948 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.96 | 0.03 | 2.55 | 3.20 | 12.14 | 18.42 | 37.30 | |||||||
| 1949 | 2.25 | 12.70 | 8.42 | 1.45 | 6.08 | 1.08 | 0.00 | 0.00 | 0.91 | 3.41 | 8.16 | 8.49 | 52.95 | |||||||||||||
| 1950 | 29.25 | 9.10 | 17.51 | 2.50 | 3.61 | i | 0.53 | 0.00 | 0.00 | 0.71 | 27.74 | 12.69 | 18.49 | 118.52 | ||||||||||||
| 1951 | 21.33 | 13.09 | 7.60 | 2.72 | 4.03 | 0.00 | 0.00 | 0.53 | b | 1.29 | 12.68 | 15.82 | 22.38 | 101.47 | ||||||||||||
| 1952 | 19.38 | 13.97 | 6.32 | 1.95 | 1.24 | 1.46 | 0.10 | 0.00 | 0.50 | 0.45 | 4.91 | 23.00 | 73.28 | |||||||||||||
| 1953 | 33.38 | 8.18 | 10.45 | 7.58 | 8.62 | 2.46 | 0.00 | 2.27 | 0.72 | 6.34 | 22.48 | 8.99 | 111.47 | |||||||||||||
| 1954 | 27.76 | 9.46 | 8.32 | 7.40 | 0.27 | 3.01 | 0.00 | 1.06 | 1.74 | 3.41 | 8.30 | 16.56 | 87.29 | |||||||||||||
| 1955 | 7.14 | 5.70 | 6.31 | 8.27 | 0.28 | 0.00 | 0.21 | d | 0.00 | b | 1.97 | 4.76 | 14.89 | 36.10 | 85.63 | |||||||||||
| 1956 | 27.81 | 20.90 | 8.32 | 0.39 | 2.10 | 0.99 | 0.05 | 0.23 | 0.60 | 16.61 | 2.37 | 7.38 | 87.75 | |||||||||||||
| 1957 | 6.52 | 9.52 | g | 17.06 | 2.62 | 4.39 | 0.60 | 0.70 | 0.00 | 3.53 | 8.28 | 9.57 | 21.37 | 74.64 | ||||||||||||
| 1958 | 22.08 | 23.82 | 8.92 | 6.31 | 1.17 | 2.27 | 0.75 | 0.06 | 1.79 | 2.99 | 9.00 | 8.76 | 87.92 | |||||||||||||
| 1959 | 18.23 | 12.61 | 8.11 | 0.82 | 1.65 | 0.45 | 0.00 | 0.06 | 3.25 | 3.00 | 1.47 | 6.08 | 55.73 | |||||||||||||
| 1960 | 8.80 | 17.48 | 16.42 | 4.91 | 8.90 | 0.00 | 0.00 | 0.25 | 0.22 | 2.64 | 17.14 | 8.05 | 84.81 | |||||||||||||
| 1961 | 7.65 | 16.50 | 21.24 | 4.30 | 6.31 | 0.28 | 0.00 | 0.57 | 1.31 | 7.82 | 14.01 | 7.51 | 87.50 | |||||||||||||
| 1962 | 3.43 | 10.21 | 8.04 | 3.53 | 1.40 | 0.17 | 0.00 | 2.62 | 1.17 | 14.00 | 9.69 | 8.85 | 63.11 | |||||||||||||
| 1963 | 5.04 | 9.25 | 10.76 | 12.93 | 6.44 | 0.73 | 0.10 | 0.00 | 0.62 | 6.49 | 18.64 | 6.19 | 77.19 | |||||||||||||
| 1964 | 23.17 | 1.48 | 7.14 | 1.32 | 1.46 | 1.03 | 0.35 | 0.23 | 0.00 | 1.16 | 17.74 | 47.82 | 102.90 | |||||||||||||
| 1965 | 14.73 | 2.89 | 1.25 | 8.46 | 0.68 | 0.64 | 0.19 | 2.63 | 0.00 | 2.61 | 11.75 | 15.54 | 61.37 | |||||||||||||
| 1966 | 23.15 | 4.71 | 12.97 | 2.93 | 0.08 | 0.35 | 0.34 | 0.21 | 1.93 | 2.33 | 15.84 | 16.70 | 81.54 | |||||||||||||
| 1967 | 21.12 | 2.73 | 11.21 | 6.55 | 2.03 | 0.65 | 0.00 | 0.00 | 0.84 | 7.26 | 5.02 | 9.12 | 66.53 | |||||||||||||
| 1968 | 15.42 | 9.16 | 7.55 | 0.75 | 3.14 | 0.08 | 0.03 | 3.72 | 1.15 | 4.94 | 12.35 | 19.68 | 77.97 | |||||||||||||
| 1969 | 19.61 | 9.08 | 3.10 | 4.21 | 1.02 | 0.51 | 0.00 | 0.00 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 37.53 | |||||||||
| 1970 | 0.00 | z | 0.00 | z | 0.00 | z | 1.93 | u | 1.99 | 0.53 | 0.00 | 0.00 | 0.33 | 6.08 | 25.84 | 20.18 | 54.95 | |||||||||
| 1971 | 20.70 | 6.28 | 20.11 | 7.80 | 1.35 | 2.03 | 0.87 | 1.29 | 6.92 | 1.99 | 16.51 | 12.98 | 98.83 | |||||||||||||
| 1972 | 18.95 | 14.67 | 15.10 | 4.07 | g | 1.84 | 1.22 | 0.00 | 0.58 | 1.51 | 3.18 | 9.34 | 18.46 | 84.85 | ||||||||||||
| 1973 | 16.05 | 5.01 | 10.10 | 2.63 | 1.23 | 0.55 | 0.00 | 0.07 | 7.28 | 6.98 | 39.59 | 23.33 | 112.82 | |||||||||||||
| 1974 | 17.05 | 13.98 | 15.99 | 0.56 | j | 2.07 | 0.20 | 0.15 | 0.00 | 0.00 | 1.40 | 7.55 | 13.29 | 71.68 | ||||||||||||
| 1975 | 11.38 | 20.82 | 20.72 | 6.19 | 2.15 | 0.20 | 0.19 | 1.01 | 0.08 | 12.47 | 10.37 | 8.09 | 93.67 | |||||||||||||
| 1976 | 0.00 | z | 0.00 | z | 0.00 | z | 2.44 | l | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1977 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1978 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1979 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1980 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1981 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1982 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1983 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1984 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1985 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1986 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1987 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1988 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1989 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1990 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1991 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1992 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1993 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1994 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1995 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1996 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1997 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1998 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1999 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2000 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2001 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2002 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2003 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2004 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2005 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2006 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2007 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2008 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2009 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2010 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 2011 | 4.44 | 5.62 | c | 11.48 | k | 3.32 | h | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 6.28 | b | 16.34 | ||
| 2012 | 11.60 | a | 4.32 | 3.69 | q | 6.40 | c | 0.88 | b | 2.04 | 0.64 | 0.56 | 0.00 | 4.00 | e | 13.72 | a | 23.90 | a | 68.06 | ||||||
| 2013 | 3.72 | 2.92 | a | 1.88 | e | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 8.52 | ||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 15.31 | 10.36 | 10.91 | 4.68 | 2.71 | 1.10 | 0.32 | 0.55 | 1.46 | 6.27 | 13.21 | 15.75 | 80.68 | |||||||||||||
| S.D. | 8.12 | 6.01 | 6.30 | 2.86 | 2.36 | 1.18 | 0.88 | 0.88 | 1.72 | 5.46 | 7.63 | 9.62 | 16.91 | |||||||||||||
| SKEW | 0.20 | 0.62 | 1.14 | 0.60 | 1.14 | 1.81 | 5.05 | 2.08 | 2.09 | 2.02 | 1.23 | 1.18 | 0.22 | |||||||||||||
| MAX | 33.38 | 23.82 | 32.26 | 12.93 | 8.90 | 5.46 | 5.28 | 3.72 | 7.28 | 27.74 | 39.59 | 47.82 | 112.82 | |||||||||||||
| MIN | 2.25 | 1.48 | 1.25 | 0.39 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.45 | 1.47 | 4.45 | 52.95 | |||||||||||||
| NO YRS | 36 | 37 | 37 | 33 | 36 | 36 | 37 | 38 | 38 | 36 | 37 | 37 | 25 | |||||||||||||