YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1948 | ----- | z | ----- | z | 0.52 | 0.15 | ----- | z | 0.60 | 4.83 | 1.31 | 0.20 | 0.58 | 0.00 | 0.23 | 8.42 | c | |||||||||
1949 | 2.30 | 1.93 | 0.22 | 3.51 | 4.03 | 1.65 | 0.22 | 1.83 | 0.30 | 1.28 | 0.00 | 1.33 | 18.60 | |||||||||||||
1950 | 0.47 | 0.35 | 0.00 | 0.65 | 5.20 | 0.56 | 2.98 | 3.54 | 6.37 | 0.16 | 0.00 | 0.00 | 20.28 | |||||||||||||
1951 | 0.10 | 0.13 | 0.52 | 0.59 | 3.17 | 1.20 | 1.50 | 1.30 | 0.90 | 0.65 | 0.07 | 0.02 | 10.15 | |||||||||||||
1952 | 0.30 | 0.25 | 0.22 | 0.75 | 1.21 | 0.00 | 1.63 | 0.00 | 0.64 | 0.00 | 2.04 | 0.77 | 7.81 | |||||||||||||
1953 | 0.00 | 0.35 | 1.72 | 0.68 | 1.85 | 0.00 | 2.10 | 1.25 | 0.18 | 2.00 | 0.00 | 0.00 | 10.13 | |||||||||||||
1954 | 0.50 | 0.00 | 0.10 | 2.63 | 3.01 | 1.50 | 0.00 | 0.00 | 0.85 | 0.80 | 0.70 | 0.51 | 10.60 | |||||||||||||
1955 | 0.50 | 0.48 | ----- | z | 0.00 | 2.72 | 1.79 | 0.75 | 0.83 | 0.85 | 1.40 | 0.03 | 0.00 | 9.35 | a | |||||||||||
1956 | 0.47 | 0.30 | 0.00 | 2.03 | 1.65 | 0.00 | 1.50 | 0.00 | 0.81 | 2.09 | 0.00 | 1.03 | a | 9.88 | ||||||||||||
1957 | 0.40 | 1.44 | 0.46 | 2.85 | 2.74 | 1.37 | 0.74 | 0.00 | 2.93 | 6.00 | 1.30 | 0.00 | 20.23 | |||||||||||||
1958 | 2.15 | 1.60 | 1.76 | 1.34 | 2.46 | 1.90 | 0.60 | 2.19 | 1.91 | 2.71 | 0.55 | 0.00 | 19.17 | |||||||||||||
1959 | 0.00 | 0.37 | 0.40 | 1.02 | 3.46 | 2.45 | 4.91 | 0.40 | 1.50 | 2.58 | 0.11 | 2.21 | 19.41 | |||||||||||||
1960 | 1.41 | 0.70 | 0.02 | 1.42 | 2.66 | 0.56 | 2.50 | 0.49 | 0.00 | 1.99 | 0.00 | 1.88 | 13.63 | |||||||||||||
1961 | 2.32 | 1.73 | 0.00 | 0.00 | 1.60 | 4.37 | 4.18 | 0.38 | 1.68 | 0.90 | 1.21 | 0.00 | 18.37 | |||||||||||||
1962 | 0.08 | 0.00 | 0.65 | 1.16 | 0.11 | 1.15 | 1.81 | 2.45 | 1.31 | 1.17 | 0.00 | 1.16 | 11.05 | |||||||||||||
1963 | 0.00 | 1.00 | 0.00 | 1.47 | 2.69 | 2.87 | 0.38 | 2.67 | 1.59 | 0.36 | 2.62 | 0.14 | 15.79 | |||||||||||||
1964 | 0.61 | 0.85 | 1.10 | 0.11 | 0.70 | 0.48 | 0.40 | 2.14 | 5.66 | 0.43 | 1.71 | 0.53 | 14.72 | |||||||||||||
1965 | 0.09 | 2.14 | 0.16 | 1.49 | 6.22 | 1.78 | 1.05 | 1.91 | 3.44 | 1.97 | 1.81 | 0.27 | 22.33 | |||||||||||||
1966 | 0.17 | 0.49 | 0.31 | 1.81 | 1.01 | 1.03 | 0.78 | 2.53 | 6.17 | 3.99 | 0.00 | 0.03 | 18.32 | |||||||||||||
1967 | 0.00 | 0.05 | 0.94 | 1.51 | 2.12 | 6.65 | 3.18 | 0.20 | 3.86 | 0.16 | 1.79 | 0.86 | 21.32 | |||||||||||||
1968 | 1.41 | 0.46 | 2.74 | 1.25 | 0.62 | 0.05 | 2.87 | 0.63 | 1.74 | 0.08 | 3.27 | 0.24 | 15.36 | |||||||||||||
1969 | 0.04 | 1.00 | 1.71 | 3.92 | 4.46 | 0.29 | 0.19 | 1.14 | 1.04 | 2.68 | 1.15 | 1.68 | 19.30 | |||||||||||||
1970 | 0.01 | 1.50 | 1.92 | 0.74 | 0.81 | 1.70 | 0.05 | 1.50 | 4.01 | 0.99 | 0.00 | 0.10 | 13.33 | |||||||||||||
1971 | 0.00 | 0.10 | 0.00 | 2.25 | 0.74 | 2.24 | 0.20 | 3.33 | 4.50 | 2.72 | 0.04 | 0.73 | 16.85 | |||||||||||||
1972 | 0.08 | 0.23 | 0.00 | 0.46 | 2.53 | 2.56 | 1.15 | 2.91 | 5.49 | 3.02 | 0.06 | 0.00 | 18.49 | |||||||||||||
1973 | 1.36 | 1.27 | 2.34 | 1.21 | 0.53 | 1.21 | 2.56 | 0.37 | 3.05 | 0.63 | 0.00 | 0.00 | 14.53 | |||||||||||||
1974 | 0.15 | 0.00 | 0.02 | 1.41 | 1.24 | 1.94 | 0.93 | 3.08 | 10.22 | 5.36 | 1.49 | 1.08 | 26.92 | |||||||||||||
1975 | 0.10 | 1.16 | 0.00 | 0.53 | 7.36 | 1.36 | 1.58 | 3.27 | 2.30 | 1.39 | 2.08 | 0.30 | 21.43 | |||||||||||||
1976 | 0.03 | 0.05 | 0.25 | 2.74 | 1.22 | 0.45 | 8.15 | 0.66 | 7.69 | 3.55 | 0.45 | 0.26 | 25.50 | |||||||||||||
1977 | 0.42 | 0.52 | 1.72 | 2.23 | 3.88 | 2.59 | 1.40 | 2.62 | 0.00 | 0.49 | 0.79 | 0.00 | 16.66 | |||||||||||||
1978 | 0.37 | 0.74 | 0.07 | 0.53 | 6.02 | 1.92 | 0.92 | 3.64 | 1.69 | 1.13 | 1.72 | 0.60 | 19.35 | |||||||||||||
1979 | 0.18 | 0.85 | 1.71 | 0.05 | 1.09 | 5.95 | 1.75 | 3.69 | 0.06 | 0.90 | 0.19 | 2.20 | 18.62 | |||||||||||||
1980 | 0.52 | 0.48 | 0.00 | 0.47 | 3.03 | 2.03 | 0.66 | 1.94 | 6.49 | 0.04 | 1.32 | 1.41 | 18.39 | |||||||||||||
1981 | 1.34 | 0.03 | 1.96 | 2.51 | 6.01 | 2.15 | 1.20 | 1.53 | 1.02 | 3.68 | 0.05 | 0.03 | 21.51 | |||||||||||||
1982 | 1.20 | a | 0.39 | ----- | z | 0.90 | 4.05 | 3.90 | 0.76 | 0.12 | 1.93 | 1.88 | 0.86 | 1.46 | 17.45 | a | ||||||||||
1983 | 1.92 | 0.22 | 0.46 | 0.31 | 0.59 | 3.04 | 0.58 | 0.12 | 0.95 | 4.98 | 0.87 | 0.11 | 14.15 | |||||||||||||
1984 | 0.79 | 0.31 | 0.68 | 0.00 | 0.94 | 0.45 | 0.43 | 0.43 | 3.06 | 4.34 | 2.03 | 1.56 | 15.02 | |||||||||||||
1985 | 0.80 | 0.63 | 1.12 | 0.62 | 2.94 | 1.62 | 1.24 | 2.14 | 2.76 | 2.18 | 0.16 | 0.04 | 16.25 | |||||||||||||
1986 | 0.21 | 2.16 | 0.14 | 0.17 | 7.04 | 12.22 | 4.34 | 3.18 | 4.56 | 7.67 | 0.41 | 2.75 | 44.85 | |||||||||||||
1987 | 0.15 | 1.95 | 1.91 | 0.90 | 3.96 | 2.01 | 0.82 | 1.91 | a | 1.70 | 0.24 | 0.12 | 2.64 | 18.31 | ||||||||||||
1988 | 0.13 | 0.34 | 0.26 | 0.73 | 2.18 | 1.13 | 5.64 | 0.26 | 4.90 | 0.00 | 0.00 | 1.09 | 16.66 | |||||||||||||
1989 | 0.37 | 2.09 | 0.72 | b | 0.25 | 1.09 | 0.73 | 0.06 | 0.21 | 1.58 | 1.08 | 0.57 | 0.29 | 9.04 | ||||||||||||
1990 | 0.35 | 1.64 | 1.17 | 4.75 | 3.58 | 0.00 | 3.84 | 2.28 | 4.87 | 2.41 | 1.81 | 0.66 | 27.36 | |||||||||||||
1991 | 2.85 | 0.13 | 0.00 | 0.60 | 0.17 | 6.40 | 2.60 | 3.20 | 5.37 | 0.83 | 0.10 | 5.56 | 27.81 | |||||||||||||
1992 | 1.87 | 3.28 | 0.76 | 1.43 | 3.86 | 5.27 | 2.17 | g | 2.36 | 0.72 | 0.17 | 0.25 | 0.59 | 20.56 | a | |||||||||||
1993 | 0.72 | a | 0.71 | 0.46 | 0.41 | 1.73 | 1.58 | 3.61 | 4.07 | ----- | z | 0.97 | 0.13 | ----- | z | 14.39 | b | |||||||||
1994 | 2.45 | 0.50 | 0.06 | 1.03 | 1.44 | 1.31 | a | 0.20 | 0.00 | 4.47 | ----- | z | 1.69 | 0.35 | 13.50 | a | ||||||||||
1995 | 0.70 | 1.41 | 0.71 | a | ----- | z | 3.88 | 0.12 | 2.01 | 1.21 | 1.69 | x | ----- | z | 0.26 | 0.35 | 10.65 | c | ||||||||
1996 | 0.00 | 0.00 | ----- | z | 3.64 | 1.29 | 1.88 | 0.00 | 6.23 | 4.94 | ----- | z | ----- | z | 0.00 | 17.98 | c | |||||||||
1997 | 0.00 | 3.55 | 1.91 | 2.23 | 3.28 | a | 3.82 | 0.22 | 1.71 | 1.22 | x | 0.21 | 0.47 | 1.85 | 19.25 | a | ||||||||||
1998 | 0.10 | 1.01 | 1.00 | 0.00 | 0.40 | 0.41 | 0.08 | 5.81 | 0.12 | 2.25 | 0.40 | 2.33 | 13.91 | |||||||||||||
1999 | 0.73 | 0.00 | 3.10 | 0.29 | 2.34 | ----- | z | 1.73 | 0.15 | 0.26 | 0.45 | 0.00 | 0.00 | 9.05 | a | |||||||||||
2000 | 0.39 | 0.30 | 1.67 | 0.18 | 0.20 | 6.54 | 0.19 | 0.00 | 0.00 | 2.79 | 2.63 | 0.50 | 15.39 | |||||||||||||
2001 | 1.16 | 0.65 | 0.99 | 2.45 | 1.81 | 0.09 | 0.35 | 3.28 | 1.67 | 0.80 | 3.58 | 0.01 | 16.84 | |||||||||||||
2002 | 0.80 | 1.44 | 0.27 | 0.86 | 0.47 | 1.36 | 1.92 | 0.02 | 1.80 | 4.15 | 0.57 | 1.01 | 14.67 | |||||||||||||
2003 | 0.17 | 1.45 | 1.09 | 0.39 | 2.27 | 3.43 | 1.39 | 3.91 | 1.50 | 4.25 | 0.23 | 0.00 | 20.08 | |||||||||||||
2004 | 1.59 | 1.70 | 1.76 | 1.30 | 0.10 | 6.69 | 1.64 | 2.81 | 4.03 | 6.75 | d | 5.42 | ----- | z | 33.79 | a | ||||||||||
2005 | 0.43 | 2.62 | a | 1.10 | 0.00 | 2.88 | x | 2.55 | 7.48 | 4.76 | a | 0.07 | 7.48 | y | 0.00 | 0.00 | 19.01 | b | ||||||||
2006 | 0.00 | 0.13 | 2.25 | x | 0.74 | 0.41 | 1.08 | 0.22 | 0.39 | p | 3.26 | b | 2.82 | 0.00 | 2.10 | c | 10.76 | b | ||||||||
2007 | 1.69 | 0.40 | 3.61 | 1.11 | 3.49 | 2.36 | 1.56 | 6.86 | 2.57 | 0.17 | 0.96 | 0.05 | d | 24.83 | ||||||||||||
2008 | 0.00 | 0.30 | 1.84 | 0.80 | 0.75 | 4.03 | 0.69 | 4.45 | 2.75 | 1.24 | 0.00 | 0.00 | 16.85 | |||||||||||||
2009 | 0.01 | 0.40 | c | 0.88 | 4.20 | b | 1.26 | 3.02 | 2.06 | 0.67 | 2.29 | 2.45 | 0.29 | 1.33 | 18.86 | |||||||||||
2010 | 1.34 | 2.12 | 0.95 | 2.39 | 0.78 | 2.16 | 4.32 | 0.16 | 3.49 | 0.58 | 0.00 | 0.50 | 18.79 | |||||||||||||
2011 | 0.04 | 0.03 | 0.00 | 0.08 | 0.68 | 0.47 | 0.00 | 3.31 | 0.08 | a | 2.00 | 0.23 | 1.53 | b | 8.45 | |||||||||||
2012 | 2.70 | 1.12 | 0.73 | 4.01 | 5.78 | a | 0.48 | 0.00 | 3.21 | 4.01 | 0.04 | 0.00 | 0.00 | 22.08 | ||||||||||||
2013 | 1.62 | 0.08 | 0.00 | 0.40 | b | 3.11 | b | 1.47 | 2.99 | 0.48 | 2.47 | 2.65 | b | 0.18 | a | 0.93 | 16.38 | |||||||||
2014 | 0.00 | b | 0.00 | a | 0.00 | 0.57 | 2.91 | 1.87 | a | 0.14 | c | 1.58 | 1.25 | 0.37 | 2.43 | e | 0.43 | b | 11.55 | |||||||
2015 | 2.55 | 0.20 | 1.98 | 0.26 | c | 6.05 | 2.81 | 1.65 | e | 1.46 | a | 0.79 | 4.47 | b | 4.11 | 1.22 | 27.55 | |||||||||
2016 | 0.07 | 0.00 | b | 1.01 | a | 2.58 | 4.20 | c | 5.13 | d | 0.05 | a | 1.27 | a | 4.78 | c | 0.00 | a | 3.45 | d | 0.00 | g | 22.54 | a | ||
2017 | 2.01 | b | 1.40 | a | 0.62 | c | 2.45 | 2.45 | 1.79 | 4.49 | c | 3.09 | a | 1.29 | b | 0.50 | f | 0.82 | b | 0.75 | 21.16 | a | ||||
2018 | 0.00 | 0.33 | 0.03 | d | 0.00 | 1.16 | c | 1.34 | b | 2.81 | 3.39 | b | 4.85 | 7.91 | 0.50 | a | 2.83 | a | 25.15 | |||||||
2019 | 0.55 | 0.60 | 0.78 | 4.12 | b | 2.89 | 0.58 | a | 0.60 | 1.25 | a | 2.24 | 0.80 | 0.84 | a | 1.00 | a | 16.25 | ||||||||
2020 | 0.96 | 1.79 | 3.17 | 0.50 | 1.33 | b | 0.19 | 0.42 | 0.52 | 1.13 | e | 0.00 | 0.00 | b | 0.42 | a | 10.43 | |||||||||
2021 | 1.59 | 0.00 | b | 0.23 | 1.61 | b | 2.80 | b | 5.08 | 2.09 | b | 4.14 | d | 0.03 | 2.45 | d | 0.10 | b | 0.00 | c | 20.12 | |||||
2022 | 0.24 | 0.52 | b | 0.03 | 0.10 | 0.13 | b | 1.63 | a | 0.40 | 0.73 | c | 3.86 | c | 2.58 | b | 1.30 | a | 0.13 | b | 11.65 | |||||
2023 | 0.26 | a | 0.65 | 0.22 | 0.12 | b | 4.17 | a | 1.07 | a | 0.65 | 0.79 | 1.97 | a | 1.77 | a | 1.10 | 0.82 | b | 13.59 | ||||||
2024 | 0.46 | 0.94 | 0.87 | b | 0.45 | k | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 2.27 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 0.71 | 0.82 | 0.85 | 1.27 | 2.46 | 2.15 | 1.68 | 1.91 | 2.53 | 1.95 | 0.87 | 0.78 | 17.72 | |||||||||||||
S.D. | 0.79 | 0.80 | 0.87 | 1.20 | 1.80 | 2.08 | 1.73 | 1.61 | 2.12 | 1.86 | 1.13 | 0.96 | 6.06 | |||||||||||||
SKEW | 1.13 | 1.25 | 1.14 | 1.13 | 0.80 | 2.09 | 1.60 | 0.82 | 1.04 | 1.32 | 1.74 | 2.16 | 1.48 | |||||||||||||
MAX | 2.85 | 3.55 | 3.61 | 4.75 | 7.36 | 12.22 | 8.15 | 6.86 | 10.22 | 7.91 | 5.42 | 5.56 | 44.85 | |||||||||||||
MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 7.81 | |||||||||||||
YRS | 76 | 76 | 73 | 75 | 74 | 75 | 75 | 75 | 73 | 71 | 75 | 73 | 61 |