YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.00 | 0.98 | 1.82 | 2.03 | 2.18 | 0.60 | 1.00 | 8.61 | e | |||||||
1942 | 0.28 | 0.89 | 0.20 | 0.80 | 0.00 | 0.00 | 1.04 | 2.41 | 0.19 | 0.36 | 0.20 | 0.83 | 7.20 | |||||||||||||
1943 | 1.54 | 0.85 | 0.91 | 0.50 | 0.01 | 0.00 | 0.78 | 0.82 | 1.90 | 0.25 | 0.00 | 1.21 | 8.77 | |||||||||||||
1944 | 0.50 | 1.80 | 0.47 | 1.19 | 0.47 | 0.05 | 0.42 | 0.53 | 0.96 | 0.21 | 1.39 | 1.13 | 9.12 | |||||||||||||
1945 | 1.19 | 0.61 | 0.93 | 0.07 | 0.00 | 0.00 | 1.38 | 2.30 | 0.04 | 0.46 | 0.00 | 2.04 | 9.02 | |||||||||||||
1946 | 0.84 | 0.11 | 0.41 | 1.42 | 0.03 | 0.00 | 1.73 | 4.17 | 0.82 | 0.17 | 1.12 | 0.96 | 11.78 | |||||||||||||
1947 | 0.21 | 0.05 | 0.42 | 0.03 | 0.40 | 0.00 | 0.71 | 2.08 | 0.12 | 0.71 | 1.21 | 2.27 | 8.21 | |||||||||||||
1948 | 0.12 | 1.37 | ----- | z | 0.09 | 0.00 | 0.35 | 1.99 | 3.65 | 0.57 | 0.95 | 0.00 | 2.34 | 11.43 | a | |||||||||||
1949 | 2.78 | 0.56 | 0.50 | 0.32 | 0.28 | 0.40 | 0.68 | 0.23 | 1.25 | 1.42 | 0.46 | 1.07 | 9.95 | |||||||||||||
1950 | 0.63 | 0.96 | 0.57 | 0.07 | 0.15 | 0.00 | 3.70 | 0.56 | 1.58 | 0.08 | 0.08 | 0.05 | 8.43 | |||||||||||||
1951 | 1.68 | 0.68 | 0.34 | 1.91 | 0.50 | 0.00 | 1.56 | 5.32 | 0.23 | 1.97 | 0.51 | 2.07 | 16.77 | |||||||||||||
1952 | 1.26 | 0.68 | 2.68 | 2.15 | 0.00 | 0.13 | 2.78 | 2.17 | 1.39 | ----- | z | 1.97 | 0.99 | 16.20 | a | |||||||||||
1953 | 0.15 | 0.47 | 0.39 | 0.79 | 0.00 | 0.00 | 6.29 | 3.49 | 0.12 | 0.04 | 0.30 | 0.09 | 12.13 | |||||||||||||
1954 | 2.26 | 0.61 | 1.72 | 0.08 | 0.64 | 0.65 | 2.20 | a | 1.70 | 1.91 | 0.42 | 0.08 | 0.23 | 12.50 | ||||||||||||
1955 | 1.34 | 0.17 | 0.02 | 0.00 | 0.00 | 2.25 | 1.63 | 3.73 | 0.26 | 0.91 | 0.24 | 0.32 | 10.87 | |||||||||||||
1956 | 0.77 | 0.11 | 0.00 | 0.23 | 0.09 | 0.67 | 2.24 | 1.11 | 0.00 | 0.89 | 0.00 | 0.38 | 6.49 | |||||||||||||
1957 | 2.10 | 0.59 | 0.60 | 0.30 | 0.93 | 0.30 | 0.75 | 2.05 | 0.02 | 1.99 | 0.73 | ----- | z | 10.36 | a | |||||||||||
1958 | 0.33 | 1.84 | 1.38 | 1.00 | 0.92 | 0.10 | 0.29 | 2.44 | 3.75 | 0.79 | 0.58 | 0.00 | 13.42 | |||||||||||||
1959 | 0.20 | 1.93 | 0.00 | 0.71 | 0.62 | c | 0.21 | 3.09 | 2.77 | 0.12 | 0.33 | 0.52 | 2.06 | 12.56 | ||||||||||||
1960 | 0.98 | 1.09 | 0.73 | 0.20 | 0.40 | 0.05 | 2.00 | 1.36 | 0.76 | 1.88 | 0.25 | 0.16 | 9.86 | |||||||||||||
1961 | 0.62 | 0.00 | 1.61 | 0.20 | 0.03 | 0.42 | 1.71 | 3.81 | ----- | z | 0.51 | 0.44 | 1.20 | 10.55 | a | |||||||||||
1962 | 1.23 | 1.14 | 0.56 | 0.03 | 0.00 | 0.23 | a | 1.02 | 0.00 | 3.46 | 0.00 | 0.57 | 0.52 | 8.76 | ||||||||||||
1963 | 0.45 | 1.05 | 0.55 | 0.41 | 0.00 | 0.00 | 2.38 | 4.23 | 0.64 | 1.02 | 1.66 | 0.02 | 12.41 | |||||||||||||
1964 | 0.35 | 0.00 | 0.70 | 1.15 | 0.09 | 0.30 | 1.89 | 2.78 | 1.16 | 0.35 | 0.39 | 0.81 | 9.97 | |||||||||||||
1965 | 1.78 | 1.39 | 1.86 | 3.12 | 0.59 | 0.43 | 2.44 | 3.59 | 1.35 | 0.21 | 1.53 | 3.85 | 22.14 | |||||||||||||
1966 | 0.41 | 0.74 | 0.68 | 0.00 | 0.00 | 0.00 | 2.26 | 2.62 | 0.71 | 1.07 | 1.11 | 1.21 | 10.81 | |||||||||||||
1967 | 0.44 | 0.00 | 0.24 | 0.23 | 0.24 | 0.89 | 3.58 | 2.25 | 0.35 | 0.13 | 1.36 | 3.32 | 13.03 | |||||||||||||
1968 | 0.00 | ----- | z | 0.12 | 0.38 | ----- | z | 0.17 | 2.86 | 2.31 | 0.01 | 1.01 | 0.06 | 0.39 | 7.31 | b | ||||||||||
1969 | 1.80 | 1.83 | 1.00 | 0.00 | 1.08 | 0.00 | 3.15 | 1.93 | 1.35 | 1.72 | 1.16 | 0.46 | 15.48 | |||||||||||||
1970 | 0.00 | ----- | z | ----- | z | 0.34 | v | 0.50 | 0.09 | 3.68 | 3.54 | 1.40 | 0.41 | 0.54 | 0.61 | 10.77 | c | |||||||||
1971 | 0.04 | 0.84 | 0.15 | 0.19 | 0.63 | 0.00 | 0.50 | 4.04 | 1.58 | 1.13 | 0.06 | 1.22 | 10.38 | |||||||||||||
1972 | 0.00 | 0.00 | 0.00 | 0.14 | 0.74 | 1.24 | 1.79 | 2.44 | 0.78 | 7.05 | 1.58 | 1.63 | 17.39 | |||||||||||||
1973 | 0.20 | 3.08 | 3.64 | 0.06 | 0.51 | 1.14 | 1.98 | 1.71 | 0.00 | 0.00 | 0.51 | 0.00 | 12.83 | |||||||||||||
1974 | 1.59 | 0.09 | 0.70 | 0.08 | 0.00 | 0.00 | 2.37 | 0.85 | 4.36 | 2.28 | 0.61 | 0.44 | 13.37 | |||||||||||||
1975 | 0.50 | 0.25 | 0.79 | 1.10 | 0.01 | 0.00 | 0.94 | 0.38 | 0.58 | 0.36 | 1.39 | 0.70 | 7.00 | |||||||||||||
1976 | 0.03 | 1.87 | 0.71 | 1.21 | 1.08 | 0.00 | 1.03 | 0.15 | 2.77 | 0.51 | 0.02 | 0.15 | 9.53 | |||||||||||||
1977 | 1.18 | 0.38 | 0.16 | 0.83 | 0.47 | 0.71 | 0.64 | 3.29 | 2.09 | 1.01 | 0.08 | 0.97 | 11.81 | |||||||||||||
1978 | 2.69 | 2.06 | 3.53 | 0.81 | 0.40 | 0.00 | 0.30 | 0.84 | 0.63 | 0.79 | 3.60 | 2.10 | 17.75 | |||||||||||||
1979 | 2.01 | 0.69 | 1.75 | 0.11 | 0.78 | 0.30 | 0.46 | 1.25 | 0.00 | 0.00 | 0.00 | 0.08 | d | 7.43 | ||||||||||||
1980 | 3.97 | 2.75 | b | 1.29 | 0.27 | 0.55 | 0.20 | 3.35 | 1.97 | 0.14 | 0.28 | 0.00 | 0.17 | 14.94 | ||||||||||||
1981 | 0.01 | 0.57 | 1.28 | 0.23 | 0.48 | 0.33 | 1.41 | 0.84 | 1.47 | 1.02 | 0.03 | d | 0.14 | 7.81 | ||||||||||||
1982 | 1.16 | k | 2.08 | i | 0.95 | v | ----- | z | 1.80 | 0.00 | f | 0.57 | a | 1.64 | 0.96 | a | 0.00 | j | 1.38 | a | 1.99 | 8.34 | f | |||
1983 | 0.48 | g | 1.48 | a | 2.51 | 0.09 | a | 0.00 | 0.00 | 1.99 | 4.02 | c | 6.13 | 0.50 | 0.19 | l | 1.48 | a | 18.20 | b | ||||||
1984 | 0.17 | 0.00 | 0.20 | a | 0.14 | e | 0.00 | h | 0.05 | 4.53 | b | 2.63 | a | 1.81 | a | 0.02 | 1.10 | j | 2.91 | g | 9.55 | c | ||||
1985 | 1.65 | 1.71 | g | 0.69 | a | 0.63 | b | 0.03 | 0.00 | 1.25 | 0.05 | a | 0.37 | d | 0.96 | b | 1.16 | c | 0.60 | a | 7.39 | a | ||||
1986 | 0.12 | 1.11 | c | 1.85 | c | 0.30 | 0.10 | 1.71 | b | 1.23 | a | 0.81 | b | 1.58 | c | 0.77 | a | 0.06 | 0.98 | a | 10.62 | |||||
1987 | 0.97 | a | 2.52 | b | 0.55 | c | 0.52 | a | 0.44 | b | 0.75 | 1.33 | a | 1.92 | b | 1.05 | 1.48 | a | 2.61 | a | 0.71 | e | 14.85 | |||
1988 | 0.66 | b | 1.37 | a | 0.01 | h | 2.89 | b | 0.00 | 1.22 | 0.89 | 4.42 | 0.18 | a | 0.16 | c | 0.66 | e | 0.34 | d | 12.79 | a | ||||
1989 | 0.65 | d | 0.21 | a | 0.78 | a | 0.00 | b | 0.20 | 0.00 | 0.81 | a | 1.65 | 0.00 | 0.39 | 0.00 | 0.56 | 5.25 | ||||||||
1990 | 1.42 | c | 0.28 | 0.78 | a | 0.76 | a | 0.27 | a | 0.33 | 7.07 | 1.44 | b | 1.41 | d | 0.60 | 0.41 | a | 0.21 | a | 14.98 | |||||
1991 | 0.97 | a | 0.55 | b | 4.26 | f | 0.00 | 0.00 | 0.20 | c | 0.84 | c | 1.20 | f | 0.17 | a | 0.37 | a | 0.71 | c | 1.61 | a | 5.42 | b | ||
1992 | 0.89 | d | 2.44 | c | 1.80 | c | 0.61 | 1.28 | d | 1.42 | 1.79 | b | 5.23 | d | 0.00 | 1.78 | a | 0.17 | a | 2.54 | d | 19.95 | ||||
1993 | 4.56 | d | 5.04 | c | 0.81 | a | 0.00 | 2.33 | 0.00 | 0.00 | 2.04 | c | 0.25 | a | 1.39 | c | 0.30 | d | 0.26 | b | 16.98 | |||||
1994 | 0.08 | c | 0.56 | 0.15 | a | 1.07 | 0.63 | c | 0.00 | 0.87 | a | 1.88 | e | 3.26 | a | 0.87 | a | 0.45 | b | 1.72 | b | 11.54 | ||||
1995 | 2.28 | b | 1.54 | a | 1.45 | d | 0.43 | a | 0.37 | 0.05 | 0.96 | a | 1.13 | b | 3.87 | b | 0.00 | 0.15 | a | 0.00 | o | 12.23 | a | |||
1996 | 0.00 | i | 0.29 | h | 0.42 | 0.00 | 0.00 | 0.20 | 2.75 | c | 1.07 | a | 1.77 | b | 0.18 | a | 0.59 | a | 0.19 | 7.17 | b | |||||
1997 | 2.27 | a | 0.78 | 0.00 | 1.10 | a | 0.11 | 0.06 | a | 0.78 | b | 2.64 | c | 4.45 | d | 0.30 | 0.51 | 1.90 | b | 14.90 | ||||||
1998 | 0.98 | e | 1.85 | d | 1.73 | b | 1.20 | b | 0.40 | 0.00 | 4.76 | g | 3.49 | c | 1.34 | c | 0.50 | b | 1.32 | c | 0.01 | 12.82 | a | |||
1999 | 0.10 | 0.29 | 0.16 | 0.63 | 0.27 | b | 0.63 | 3.52 | d | 2.64 | f | 4.59 | b | 0.00 | 0.00 | 0.00 | 10.19 | a | ||||||||
2000 | 0.08 | b | 1.14 | c | 1.32 | c | 0.10 | b | 0.00 | 0.61 | b | 0.47 | e | 2.55 | h | 0.21 | 4.42 | h | 0.90 | e | 0.00 | 4.83 | b | |||
2001 | 1.13 | b | 0.73 | b | 1.10 | d | 0.41 | d | 0.00 | 0.17 | b | 0.66 | a | 2.74 | f | 1.40 | b | 0.26 | e | 0.47 | f | 0.83 | h | 5.86 | c | |
2002 | 0.14 | a | 0.00 | a | 0.57 | 0.39 | b | 0.00 | 0.00 | 0.53 | a | 0.00 | 2.35 | d | 1.34 | e | 0.00 | d | 0.86 | f | 5.32 | a | ||||
2003 | 0.60 | d | 2.31 | d | 1.39 | d | 0.20 | 0.00 | 0.00 | 1.79 | c | 2.65 | b | 0.86 | a | 0.16 | b | 1.15 | b | 0.10 | 11.21 | |||||
2004 | 0.57 | c | 0.64 | a | 0.58 | a | 1.89 | a | 0.00 | 0.00 | 0.72 | b | 0.20 | a | 0.59 | a | 2.59 | b | 2.07 | c | 1.67 | 11.52 | ||||
2005 | 3.79 | 3.06 | b | 1.13 | 0.71 | 0.00 | 0.65 | 1.74 | 2.85 | 0.21 | 0.95 | 0.35 | 0.00 | 15.44 | ||||||||||||
2006 | 0.03 | 0.00 | 0.75 | 0.23 | 0.00 | 0.19 | 1.80 | 1.45 | 2.40 | 0.95 | 0.00 | 0.13 | 7.93 | |||||||||||||
2007 | 0.45 | a | 0.62 | b | 1.38 | 0.28 | 0.00 | 0.00 | 1.59 | 1.44 | 2.25 | 0.90 | b | 0.00 | 1.17 | 10.08 | ||||||||||
2008 | 2.12 | 1.23 | 0.10 | 0.00 | 1.25 | 0.00 | 3.22 | 3.48 | 0.82 | 0.00 | 1.23 | 2.09 | 15.54 | |||||||||||||
2009 | 0.74 | 1.66 | a | 0.14 | 0.46 | 1.16 | 0.23 | a | 2.30 | 0.00 | ----- | z | 0.05 | 0.00 | 1.59 | 8.33 | a | |||||||||
2010 | 1.06 | 0.55 | 1.15 | 0.27 | 0.02 | 0.00 | 1.43 | 2.92 | ----- | z | ----- | z | ----- | z | ----- | z | 7.40 | d | ||||||||
2011 | ----- | z | ----- | z | ----- | z | 0.07 | b | 0.23 | a | 0.00 | a | 1.96 | a | 1.35 | a | 2.72 | b | 0.63 | b | 0.84 | b | 1.50 | 9.30 | c | |
2012 | 0.15 | 0.18 | a | 1.20 | 0.47 | 0.00 | 0.00 | 3.28 | a | 0.70 | c | 0.89 | 0.09 | 0.08 | 1.26 | f | 7.04 | a | ||||||||
2013 | 1.97 | a | 0.40 | a | 0.30 | 0.02 | 0.00 | 0.00 | 2.58 | b | 1.65 | d | 1.62 | b | 0.12 | p | 1.79 | c | 0.46 | a | 10.79 | a | ||||
2014 | 0.00 | 0.14 | 0.49 | a | 0.34 | c | 0.01 | 0.00 | 1.24 | f | 7.09 | b | 2.63 | b | 0.45 | 0.00 | 1.77 | b | 12.92 | a | ||||||
2015 | 1.79 | b | 0.27 | 2.32 | 0.52 | 0.78 | 0.70 | 3.61 | e | 0.89 | b | 1.14 | f | 2.05 | b | 0.47 | 0.32 | 13.72 | a | |||||||
2016 | 0.71 | 0.00 | a | 0.31 | 0.76 | S | 1.06 | c | 0.15 | 0.85 | a | 3.99 | f | 1.98 | 0.59 | 1.02 | a | 1.42 | c | 8.85 | a | |||||
2017 | 1.85 | f | 1.58 | b | 0.39 | 0.13 | 0.33 | 0.00 | 2.50 | g | 1.98 | b | 1.32 | b | 0.00 | 0.00 | 0.00 | 5.73 | b | |||||||
2018 | 0.68 | 0.61 | a | 0.52 | d | 0.00 | 0.69 | 0.18 | 5.01 | e | 1.70 | d | 0.46 | 2.56 | e | 0.26 | 0.10 | e | 12.77 | |||||||
2019 | 0.00 | y | 1.68 | h | 1.12 | 0.05 | 0.93 | b | 0.00 | 0.10 | 0.77 | k | 0.92 | g | 0.00 | m | ----- | z | ----- | z | 2.20 | g | ||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 1.00 | 0.98 | 0.89 | 0.53 | 0.37 | 0.27 | 1.85 | 2.14 | 1.33 | 0.83 | 0.64 | 0.94 | 11.91 | |||||||||||||
S.D. | 0.99 | 0.93 | 0.78 | 0.63 | 0.46 | 0.44 | 1.36 | 1.42 | 1.29 | 1.00 | 0.70 | 0.86 | 3.62 | |||||||||||||
SKEW | 1.45 | 1.63 | 1.50 | 2.08 | 1.68 | 2.32 | 1.44 | 0.78 | 1.40 | 3.57 | 1.59 | 0.99 | 0.58 | |||||||||||||
MAX | 4.56 | 5.04 | 3.64 | 3.12 | 2.33 | 2.25 | 7.07 | 7.09 | 6.13 | 7.05 | 3.60 | 3.85 | 22.14 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.25 | |||||||||||||
YRS | 72 | 71 | 72 | 76 | 76 | 78 | 76 | 73 | 74 | 73 | 74 | 71 | 49 |