YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 0.61 | 1.65 | 2.26 | j | ||
1944 | 1.36 | 1.18 | 0.37 | 0.67 | 1.75 | 1.20 | 3.56 | 1.35 | 3.96 | 0.47 | 1.05 | 1.64 | 18.56 | |||||||||||||
1945 | 0.66 | 0.33 | 0.10 | 1.45 | 0.55 | 0.61 | 2.81 | 2.57 | 1.80 | 1.96 | 0.05 | 0.50 | a | 13.39 | ||||||||||||
1946 | 1.24 | 0.02 | 0.86 | 0.18 | 1.86 | 1.45 | 0.91 | 2.66 | 2.97 | 5.40 | 0.43 | 1.39 | 19.37 | |||||||||||||
1947 | 0.94 | 0.25 | a | 1.20 | 1.52 | 6.25 | v | 0.27 | ----- | z | ----- | z | 0.14 | 0.00 | 1.12 | 0.44 | 5.88 | c | ||||||||
1948 | 0.17 | 1.24 | 0.29 | 0.91 | 3.53 | 2.88 | 1.95 | a | 0.69 | 1.06 | 1.51 | 0.03 | 0.28 | 14.54 | ||||||||||||
1949 | 3.83 | 0.39 | 0.45 | 1.38 | 6.18 | 4.88 | 0.80 | 1.46 | 2.92 | 0.81 | 0.00 | 0.54 | 23.64 | |||||||||||||
1950 | 0.28 | 2.29 | 0.00 | 1.39 | 1.00 | 0.80 | a | 3.27 | 0.86 | 4.97 | 0.21 | 0.02 | 0.06 | 15.15 | ||||||||||||
1951 | 0.32 | 1.58 | 0.50 | 0.88 | 6.38 | 5.08 | 2.15 | 3.27 | 3.85 | 1.03 | 0.19 | 0.06 | 25.29 | |||||||||||||
1952 | 1.01 | 0.05 | 0.02 | 2.14 | 1.38 | 0.38 | 3.52 | 1.40 | 0.98 | 0.00 | 0.59 | 0.12 | 11.59 | |||||||||||||
1953 | 0.62 | 0.13 | 0.86 | 0.60 | 0.91 | 0.39 | 2.96 | 1.58 | 0.35 | 3.33 | 0.01 | 0.02 | 11.76 | |||||||||||||
1954 | 0.13 | 0.00 | 0.06 | 1.85 | 4.30 | 0.76 | 0.47 | 3.01 | 0.05 | 1.16 | 0.00 | 0.61 | 12.40 | |||||||||||||
1955 | 0.74 | 0.00 | 0.22 | 0.19 | 3.15 | 2.18 | 2.12 | 0.11 | 1.31 | 4.80 | 0.18 | 0.00 | 15.00 | |||||||||||||
1956 | 0.04 | 1.87 | 0.00 | 0.19 | 2.61 | 3.39 | 1.28 | 0.49 | 0.12 | 0.85 | 0.00 | 0.31 | 11.15 | |||||||||||||
1957 | 0.25 | 0.84 | 0.77 | 4.04 | 5.76 | 6.74 | 0.59 | 3.31 | 0.76 | 4.58 | 1.67 | 0.10 | 29.41 | |||||||||||||
1958 | 2.25 | 0.45 | 3.21 | 2.18 | 2.19 | 1.48 | 2.43 | 0.44 | 3.68 | 0.74 | 0.41 | 0.04 | 19.50 | |||||||||||||
1959 | 0.11 | 0.16 | 1.02 | 1.51 | 1.83 | 5.50 | 3.75 | 1.10 | 0.36 | 1.04 | 0.02 | 1.98 | 18.38 | |||||||||||||
1960 | 0.73 | 1.12 | 0.84 | 0.43 | 0.82 | 4.26 | 9.74 | 0.16 | 1.35 | 5.58 | 0.02 | 1.98 | 27.03 | |||||||||||||
1961 | 0.69 | 1.83 | 1.90 | 0.19 | 4.95 | 3.32 | 3.74 | 2.01 | 0.65 | 0.29 | 1.44 | 0.37 | 21.38 | |||||||||||||
1962 | 0.63 | 0.00 | 0.12 | 1.01 | 0.44 | 2.63 | 3.89 | 1.41 | 5.18 | 2.52 | 0.98 | 1.20 | 20.01 | |||||||||||||
1963 | 0.06 | 1.15 | 0.00 | 1.63 | 3.29 | 4.69 | 1.98 | 1.76 | 0.76 | 0.59 | 1.40 | 0.27 | 17.58 | |||||||||||||
1964 | 0.43 | 0.77 | 0.69 | 0.01 | 1.09 | 3.22 | 0.30 | 0.98 | 2.21 | 0.08 | 1.03 | 0.97 | 11.78 | |||||||||||||
1965 | 0.11 | 0.44 | 0.19 | 0.63 | 1.51 | 3.02 | 0.45 | 0.91 | 3.84 | 1.16 | 0.00 | 0.85 | 13.11 | |||||||||||||
1966 | 0.82 | 0.22 | 0.01 | 3.67 | 1.02 | 2.80 | 1.57 | 8.61 | 1.03 | 0.06 | 0.07 | 0.09 | 19.97 | |||||||||||||
1967 | 0.00 | 0.12 | 1.84 | 1.57 | 1.30 | 4.57 | 2.88 | 5.24 | 1.51 | 0.07 | 0.19 | 0.60 | 19.89 | |||||||||||||
1968 | 1.14 | 1.03 | 2.20 | 0.53 | 2.01 | 2.75 | 3.25 | 4.94 | 1.19 | 1.03 | 1.27 | 0.51 | 21.85 | |||||||||||||
1969 | 0.00 | 1.08 | 1.80 | 1.28 | 5.55 | 3.63 | 2.03 | 1.38 | 3.94 | 6.51 | 0.96 | 0.53 | 28.69 | |||||||||||||
1970 | 0.00 | 0.07 | 2.36 | 0.26 | 0.85 | 1.91 | 0.00 | 1.98 | 2.71 | 1.15 | 0.06 | 0.06 | 11.41 | |||||||||||||
1971 | 0.01 | 0.81 | 0.20 | 1.09 | 2.08 | 2.89 | 1.23 | 4.22 | 5.28 | 1.68 | 0.34 | 1.33 | 21.16 | |||||||||||||
1972 | 0.08 | 0.12 | 0.04 | 0.03 | 3.97 | 4.23 | 4.04 | 4.31 | 4.18 | 1.79 | 1.13 | 0.45 | 24.37 | |||||||||||||
1973 | 1.11 | f | 1.40 | 2.01 | 2.43 | 0.88 | 0.70 | 3.87 | 0.56 | 0.89 | 1.28 | 0.10 | 0.00 | 14.12 | a | |||||||||||
1974 | 0.15 | 0.02 | 1.76 | 0.38 | 1.43 | 1.58 | 1.84 | 6.87 | 6.47 | 4.91 | 0.82 | 0.76 | 26.99 | |||||||||||||
1975 | 0.51 | 1.60 | 0.04 | 0.67 | 1.87 | 1.15 | 3.33 | 3.43 | 2.26 | 0.00 | 1.28 | 0.30 | 16.44 | |||||||||||||
1976 | 0.00 | 0.00 | 0.19 | 1.59 | 1.42 | 0.54 | 6.43 | 1.27 | 3.27 | 1.75 | 0.49 | 0.00 | 16.95 | |||||||||||||
1977 | 0.21 | 0.54 | 0.89 | 3.81 | 2.80 | 1.79 | 0.48 | 3.12 | 0.51 | 0.96 | 0.00 | 0.00 | 15.11 | |||||||||||||
1978 | 0.52 | 1.18 | 0.42 | 0.25 | 2.86 | 4.30 | 1.22 | 0.93 | 3.03 | 0.87 | 1.40 | 0.28 | 17.26 | |||||||||||||
1979 | 0.55 | 1.36 | 1.56 | 1.04 | 4.85 | 5.11 | 2.13 | 3.85 | 0.56 | 0.67 | 0.17 | 1.30 | 23.15 | |||||||||||||
1980 | 0.29 | 0.54 | 0.28 | 1.43 | 3.46 | 2.69 | 0.75 | 0.70 | 4.18 | 0.61 | 1.64 | 0.83 | 17.40 | |||||||||||||
1981 | 0.23 | 0.38 | 1.40 | 2.20 | 0.47 | 0.35 | 3.69 | 4.15 | 1.84 | 3.72 | 0.65 | 0.24 | 19.32 | |||||||||||||
1982 | 0.07 | a | 0.39 | 0.57 | 0.74 | 5.80 | 3.87 | 1.38 | 2.71 | 2.95 | 0.37 | 1.27 | 1.66 | 21.78 | ||||||||||||
1983 | 2.89 | 0.70 | 0.04 | 0.80 | 2.24 | 1.77 | 0.98 | 2.15 | 0.98 | 7.44 | 0.54 | 0.31 | 20.84 | |||||||||||||
1984 | 0.10 | 0.30 | 0.30 | 0.35 | 0.68 | 4.36 | 2.39 | 3.56 | 0.40 | 2.04 | 2.09 | 1.38 | 17.95 | |||||||||||||
1985 | 0.55 | 0.47 | 1.05 | 0.57 | 3.43 | 8.43 | 3.01 | a | 0.52 | 4.93 | 3.22 | 0.08 | 0.32 | 26.58 | ||||||||||||
1986 | 0.00 | 1.07 | 0.29 | 0.66 | 1.70 | 3.77 | 3.10 | 4.33 | 6.39 | 5.28 | 1.86 | 1.48 | 29.93 | |||||||||||||
1987 | 0.45 | 1.11 | 0.31 | 0.15 | 3.96 | 3.65 | 2.53 | 2.81 | 2.58 | 0.32 | 0.37 | 1.53 | 19.77 | |||||||||||||
1988 | 0.30 | 0.30 | 0.40 | 1.82 | 2.61 | a | 3.32 | 4.41 | 0.46 | 2.18 | 0.00 | 0.38 | 0.50 | 16.68 | ||||||||||||
1989 | 0.43 | ----- | z | 0.65 | 0.00 | 1.46 | 5.95 | 0.65 | 4.48 | 3.92 | 0.00 | 0.00 | 0.10 | a | 17.64 | a | ||||||||||
1990 | 0.85 | 1.49 | 0.59 | e | 1.60 | f | 0.86 | 0.37 | f | 3.50 | 2.22 | 0.85 | 0.23 | 1.14 | 0.33 | 12.06 | b | |||||||||
1991 | 1.08 | a | 0.05 | 0.25 | 0.00 | 1.71 | e | 2.51 | 2.57 | 3.36 | 4.69 | 1.72 | 1.14 | 2.27 | 21.35 | |||||||||||
1992 | 1.17 | 0.20 | g | 0.69 | 1.18 | 5.38 | e | 6.21 | 2.79 | 1.48 | 0.50 | l | 0.00 | 1.42 | 0.22 | a | 20.54 | b | ||||||||
1993 | 1.36 | 0.59 | 0.77 | 0.73 | 0.32 | s | 2.77 | 2.73 | 2.38 | a | 0.35 | 1.30 | 0.33 | 0.07 | 13.38 | a | ||||||||||
1994 | 0.35 | 0.10 | ----- | z | ----- | z | 0.63 | y | 0.58 | 1.94 | 0.43 | 0.54 | i | 0.31 | 0.73 | 0.06 | 4.50 | d | ||||||||
1995 | 0.42 | 0.18 | 0.48 | 1.94 | 3.18 | 2.39 | 1.74 | 2.27 | 6.79 | 0.88 | 0.00 | 0.80 | 21.07 | |||||||||||||
1996 | 0.08 | 0.03 | 0.02 | 0.02 | 5.65 | 2.88 | 2.39 | 4.87 | 1.41 | 0.65 | 0.70 | 0.00 | 18.70 | |||||||||||||
1997 | 0.63 | 1.12 | 0.07 | 5.79 | 4.35 | 2.94 | 1.96 | 3.33 | 1.50 | 1.44 | 0.90 | 1.93 | 25.96 | |||||||||||||
1998 | 0.00 | 2.20 | 1.74 | 0.36 | 0.15 | 0.40 | 0.55 | 3.46 | 0.73 | 5.22 | 1.29 | 0.38 | 16.48 | |||||||||||||
1999 | 1.72 | 0.00 | 1.57 | 2.85 | 5.42 | 3.20 | 1.81 | 0.54 | 1.82 | 0.71 | 0.00 | 1.01 | 20.65 | |||||||||||||
2000 | 0.02 | 0.03 | 1.72 | 1.95 | 0.98 | 5.00 | 1.58 | 0.08 | 0.00 | 4.40 | 2.85 | 1.30 | 19.91 | |||||||||||||
2001 | 1.74 | 0.57 | 2.85 | 0.16 | 4.61 | 0.01 | 0.00 | 1.37 | 2.11 | 0.06 | 3.62 | 0.27 | 17.37 | |||||||||||||
2002 | 0.82 | 0.70 | 1.53 | 0.61 | 0.22 | 4.67 | 1.31 | 1.62 | 1.21 | 3.32 | 0.42 | b | 1.49 | 17.92 | ||||||||||||
2003 | 0.09 | 0.02 | 0.84 | 1.02 | 1.57 | 4.89 | 0.00 | 0.27 | 0.89 | 1.04 | 0.65 | 0.00 | e | 11.28 | ||||||||||||
2004 | 2.35 | 2.63 | 2.32 | 2.92 | 1.78 | 3.50 | 4.27 | b | 2.08 | 5.61 | 3.76 | 6.82 | 1.12 | 39.16 | ||||||||||||
2005 | 0.95 | 1.07 | 0.90 | 0.47 | 2.01 | 1.92 | 3.44 | 4.87 | c | 1.15 | 3.98 | 0.00 | 0.04 | 20.80 | ||||||||||||
2006 | 0.00 | 0.32 | 1.95 | 0.97 | g | 4.22 | 0.93 | 1.14 | 2.96 | 9.57 | a | 2.13 | 0.43 | k | 1.87 | 25.09 | b | |||||||||
2007 | 1.20 | 0.15 | 5.52 | 1.76 | 4.53 | f | 5.20 | 1.37 | 1.84 | 3.26 | 0.44 | 0.17 | 1.35 | 22.26 | a | |||||||||||
2008 | 0.00 | 0.63 | 0.07 | 0.44 | 4.55 | 2.81 | c | 2.26 | b | 2.88 | 4.98 | 2.48 | a | 0.02 | 0.01 | 21.13 | ||||||||||
2009 | 0.06 | 0.76 | 0.52 | 1.26 | 1.00 | 3.62 | 2.64 | 0.06 | 1.51 | 0.97 | 0.13 | 1.61 | 14.14 | |||||||||||||
2010 | 1.82 | 2.60 | 2.91 | c | 4.14 | 1.43 | 0.79 | 5.13 | 2.14 | 1.44 | 0.90 | 0.10 | 0.00 | 23.40 | ||||||||||||
2011 | 0.00 | 0.53 | 0.49 | 0.00 | 0.52 | 0.00 | 0.47 | 0.00 | 1.19 | 1.40 | 0.24 | 1.84 | 6.68 | |||||||||||||
2012 | 0.00 | 0.52 | 0.56 | 0.17 | 1.00 | 4.73 | 0.37 | 0.91 | 3.38 | 0.49 | 0.00 | 0.82 | 12.95 | |||||||||||||
2013 | 0.99 | 1.65 | 0.01 | 0.00 | 0.22 | 2.35 | 4.03 | 3.04 | 0.40 | 0.71 | 0.26 | 0.52 | 14.18 | |||||||||||||
2014 | 0.00 | 0.21 | 0.04 | 0.36 | 5.79 | 4.04 | 2.14 | 0.91 | 6.34 | 0.21 | 2.06 | 0.27 | 22.37 | |||||||||||||
2015 | 1.29 | a | 0.68 | 0.21 | 2.06 | 8.97 | 4.42 | 2.09 | 0.64 | 0.41 | 5.63 | 1.61 | 1.76 | 29.77 | ||||||||||||
2016 | 0.24 | 0.10 | 0.92 | 1.54 | 4.06 | 1.27 | 1.63 | 5.39 | 1.47 | 0.27 | 0.71 | 0.59 | 18.19 | |||||||||||||
2017 | 1.70 | 0.45 | 0.95 | 1.11 | 0.88 | 2.87 | 2.72 | 7.22 | 3.07 | 0.43 | 0.02 | 0.00 | 21.42 | |||||||||||||
2018 | 0.00 | 0.32 | 0.88 | 0.07 | 0.95 | 1.53 | 0.48 | 1.35 | 3.56 | 3.70 | 0.22 | 1.35 | 14.41 | |||||||||||||
2019 | 0.01 | 0.02 | 0.99 | 1.70 | 5.11 | 1.77 | 0.48 | 0.78 | 4.00 | 0.35 | 0.87 | 0.55 | 16.63 | |||||||||||||
2020 | 0.53 | 0.42 | 2.69 | 0.06 | 0.79 | 1.67 | 1.27 | 0.21 | 0.47 | 0.82 | 0.26 | 0.10 | 9.29 | |||||||||||||
2021 | 0.71 | 0.25 | 1.51 | 0.13 | 4.32 | 3.55 | 1.99 | 2.37 | 1.59 | 1.61 | 0.04 | 0.00 | 18.07 | |||||||||||||
2022 | 0.31 | 0.20 | 0.05 | 0.00 | 2.87 | 1.35 | 0.07 | 4.63 | 0.39 | 3.37 | 0.77 | 0.66 | 14.67 | |||||||||||||
2023 | 0.47 | 0.31 | 0.02 | 0.94 | 5.27 | 2.04 | 3.83 | 0.09 | 2.65 | 2.38 | 0.07 | 2.20 | 20.27 | |||||||||||||
2024 | 1.00 | 0.53 | 0.49 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.02 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.62 | 0.66 | 0.89 | 1.14 | 2.68 | 2.84 | 2.23 | 2.28 | 2.43 | 1.76 | 0.72 | 0.70 | 19.04 | |||||||||||||
S.D. | 0.72 | 0.65 | 0.96 | 1.13 | 1.93 | 1.77 | 1.59 | 1.81 | 1.97 | 1.81 | 0.99 | 0.66 | 5.61 | |||||||||||||
SKEW | 1.92 | 1.22 | 1.93 | 1.64 | 0.78 | 0.47 | 1.50 | 1.06 | 1.05 | 1.24 | 3.42 | 0.73 | 0.67 | |||||||||||||
MAX | 3.83 | 2.63 | 5.52 | 5.79 | 8.97 | 8.43 | 9.74 | 8.61 | 9.57 | 7.44 | 6.82 | 2.27 | 39.16 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 6.68 | |||||||||||||
YRS | 80 | 79 | 80 | 77 | 76 | 79 | 79 | 79 | 78 | 80 | 80 | 81 | 71 |